/* ================================================================
   CustomSaaS — Phase 1 Redesign — main.css
   ================================================================ */

/* ============ DESIGN TOKENS ============ */
:root {
    --sky-50:  #F0F9FF; --sky-100: #E0F2F7; --sky-300: #7DD3FC;
    --sky-500: #0ea5e9; --sky-600: #0284c7; --sky-700: #0369a1; --sky-900: #0c4a6e;
    --slate-50:  #F8FAFC; --slate-100: #F1F5F9; --slate-200: #E2E8F0;
    --slate-300: #CBD5E1; --slate-400: #94A3B8; --slate-500: #64748B;
    --slate-600: #475569; --slate-700: #334155; --slate-800: #1E293B; --slate-900: #0F172A;
    --ink: #020617;
    --bg: #FFFFFF; --bg-soft: #F8FAFC; --bg-tinted: #F0F9FF;
    --amber-500: #F59E0B;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Instrument Serif', Georgia, serif;
    --r-sm: 6px; --r-md: 10px; --r-lg: 16px; --r-xl: 24px;
    --shadow-sm: 0 1px 2px 0 rgba(15,23,42,0.05);
    --shadow-md: 0 4px 6px -1px rgba(15,23,42,0.06), 0 2px 4px -1px rgba(15,23,42,0.04);
    --shadow-lg: 0 10px 15px -3px rgba(15,23,42,0.08), 0 4px 6px -2px rgba(15,23,42,0.04);
    --shadow-xl: 0 25px 50px -12px rgba(15,23,42,0.18);
    --container: 1200px; --section-y: 7rem;
}

/* ============ RESET ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; overflow-x: clip; }
body {
    font-family: var(--font-sans); background: var(--bg);
    color: var(--slate-900); line-height: 1.6;
    -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
    overflow-x: clip; /* prevents fixed-position drawer from anchoring to layout-viewport right edge if any element overflows */
}
img, svg { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* ============ UTILITIES ============ */
.cs-container { max-width: var(--container); margin: 0 auto; padding: 0 1.5rem; }

/* ============ TYPOGRAPHY ============ */
.cs-h1 {
    font-family: var(--font-display); font-weight: 400;
    font-size: clamp(2.6rem, 5.4vw, 4.6rem); line-height: 1.04;
    letter-spacing: -0.025em; color: var(--slate-900); margin-bottom: 1.5rem;
}
.cs-h1 em { font-style: italic; color: var(--sky-600); }

.cs-h2 {
    font-family: var(--font-display); font-weight: 400;
    font-size: clamp(2rem, 3.6vw, 3.2rem); line-height: 1.1;
    letter-spacing: -0.02em; color: var(--slate-900); margin-bottom: 1.25rem;
}
.cs-h2 em { font-style: italic; color: var(--sky-600); }
.cs-h2--light { color: #fff; }
.cs-h2--light em { color: var(--sky-300); }

.cs-eyebrow {
    display: inline-flex; align-items: center; gap: 0.5rem;
    font-family: var(--font-sans); font-size: 0.78rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.12em;
    color: var(--sky-600); margin-bottom: 1rem;
}
.cs-eyebrow--light { color: var(--sky-300); }
.cs-eyebrow__dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--sky-500); box-shadow: 0 0 0 4px rgba(14,165,233,0.18);
    animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 4px rgba(14,165,233,0.18); }
    50%      { box-shadow: 0 0 0 8px rgba(14,165,233,0.05); }
}

.cs-section-head { margin-bottom: 4rem; }
.cs-section-head--center { text-align: center; max-width: 760px; margin-left: auto; margin-right: auto; }
.cs-section-head--light { color: #fff; }
.cs-section-lede { font-size: 1.15rem; color: var(--slate-500); line-height: 1.65; max-width: 640px; }
.cs-section-head--center .cs-section-lede { margin-left: auto; margin-right: auto; }
.cs-section-lede--light { color: var(--slate-300); }

/* ============ BUTTONS ============ */
.cs-btn {
    display: inline-flex; align-items: center; justify-content: center;
    gap: 0.6rem; padding: 0.85rem 1.6rem;
    font-size: 0.95rem; font-weight: 600;
    border-radius: 10px; transition: all 0.2s ease;
    line-height: 1; white-space: nowrap;
    border: 1px solid transparent;
}
.cs-btn--sm { padding: 0.6rem 1.1rem; font-size: 0.88rem; border-radius: 8px; }
.cs-btn--lg { padding: 1.05rem 1.9rem; font-size: 1rem; border-radius: 12px; }
.cs-btn--block { width: 100%; }
.cs-btn--primary {
    background: linear-gradient(180deg, var(--sky-500), var(--sky-600));
    color: #fff;
    box-shadow: 0 1px 0 rgba(255,255,255,0.4) inset, 0 8px 20px -8px rgba(2,132,199,0.5);
}
.cs-btn--primary:hover { transform: translateY(-2px); box-shadow: 0 1px 0 rgba(255,255,255,0.4) inset, 0 14px 26px -10px rgba(2,132,199,0.55); }
.cs-btn--ghost { background: rgba(15,23,42,0.04); color: var(--slate-800); border-color: var(--slate-200); }
.cs-btn--ghost:hover { background: var(--slate-100); border-color: var(--slate-300); }
.cs-btn--white { background: #fff; color: var(--slate-900); box-shadow: var(--shadow-md); }
.cs-btn--white:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

/* ============ NAVIGATION ============ */
.cs-nav {
    position: sticky; top: 0; z-index: 100;
    background: rgba(255,255,255,0.85);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--slate-200);
}
.cs-nav__inner {
    max-width: var(--container); margin: 0 auto; padding: 0 1.5rem;
    height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 2rem;
}
.cs-logo { display: inline-flex; align-items: baseline; gap: 4px; line-height: 1; }
.cs-logo__custom { font-weight: 800; font-size: 1.35rem; color: var(--slate-900); letter-spacing: -0.04em; }
.cs-logo__saas { font-weight: 400; font-size: 1.35rem; color: var(--slate-500); letter-spacing: -0.02em; }
.cs-logo__saas--light { color: var(--slate-400); }
.cs-logo__bars { display: inline-flex; align-items: baseline; gap: 2px; margin-left: 6px; }
.cs-logo__bar { width: 5px; border-radius: 1px; }
.cs-logo__bar--dark  { height: 14px; background: var(--slate-900); }
.cs-logo__bar--light { height: 14px; background: #fff; }
.cs-logo__bar--blue  { height: 18px; background: var(--sky-500); }
.cs-logo--light .cs-logo__custom { color: #fff; }

.cs-nav__links { display: flex; align-items: center; gap: 0.4rem; }
.cs-nav__trigger, .cs-nav__link {
    display: inline-flex; align-items: center; gap: 0.4rem;
    padding: 0.6rem 0.85rem; border-radius: 8px;
    font-size: 0.95rem; font-weight: 500; color: var(--slate-700);
    transition: color 0.15s, background 0.15s;
}
.cs-nav__trigger:hover, .cs-nav__link:hover { color: var(--sky-700); background: var(--slate-100); }
.cs-nav__item[data-mega] .cs-nav__trigger svg { transition: transform 0.2s; }
.cs-nav__item[data-mega].is-open .cs-nav__trigger { color: var(--sky-700); background: var(--slate-100); }
.cs-nav__item[data-mega].is-open .cs-nav__trigger svg { transform: rotate(180deg); }
.cs-nav__actions { display: flex; align-items: center; gap: 0.5rem; }
.cs-nav__signin {
    display: inline-flex; align-items: center; gap: 0.45rem;
    padding: 0.55rem 0.85rem; font-size: 0.9rem; font-weight: 500; color: var(--slate-600);
    border-radius: 8px; transition: color 0.15s, background 0.15s;
}
.cs-nav__signin:hover { color: var(--sky-700); background: var(--slate-100); }
.cs-nav__burger { display: none; width: 40px; height: 40px; flex-direction: column; justify-content: center; align-items: center; gap: 5px; border-radius: 8px; }
.cs-nav__burger span { display: block; width: 22px; height: 2px; background: var(--slate-700); border-radius: 2px; transition: transform 0.2s, opacity 0.2s; }

/* ============ MEGA MENU ============ */
.cs-mega {
    position: absolute; left: 0; right: 0; top: 100%;
    background: #fff; border-bottom: 1px solid var(--slate-200);
    box-shadow: 0 20px 30px -10px rgba(15,23,42,0.08);
    opacity: 0; visibility: hidden; transform: translateY(-8px);
    transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
    pointer-events: none;
}
.cs-mega.is-open { opacity: 1; visibility: visible; transform: translateY(0); pointer-events: auto; }
.cs-mega__inner { max-width: var(--container); margin: 0 auto; padding: 2rem 1.5rem 2.25rem; }
.cs-mega__cols { display: grid; grid-template-columns: repeat(3, 1fr) 1.2fr; gap: 2.5rem; }
.cs-mega__col h6 {
    font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em;
    color: var(--slate-400); margin-bottom: 1rem;
}
.cs-mega__link { display: block; padding: 0.55rem 0.7rem; margin: 0 -0.7rem; border-radius: 8px; transition: background 0.15s; }
.cs-mega__link:hover { background: var(--slate-50); }
.cs-mega__link-title { display: block; font-size: 0.95rem; font-weight: 600; color: var(--slate-900); margin-bottom: 0.15rem; }
.cs-mega__link-sub { display: block; font-size: 0.82rem; color: var(--slate-500); line-height: 1.4; }
.cs-mega__link:hover .cs-mega__link-title { color: var(--sky-700); }
.cs-mega__feature {
    background: linear-gradient(135deg, var(--sky-50), #fff);
    border: 1px solid var(--sky-100); border-radius: 12px;
    padding: 1.5rem; display: flex; flex-direction: column; gap: 0.75rem;
}
.cs-mega__feature--accent { background: linear-gradient(135deg, var(--slate-900), var(--sky-900)); border-color: var(--slate-800); }
.cs-mega__feature--accent .cs-mega__feature-eyebrow { color: var(--sky-300); }
.cs-mega__feature--accent .cs-mega__feature-title { color: #fff; }
.cs-mega__feature--accent p { color: var(--slate-300); }
.cs-mega__feature--accent .cs-mega__feature-link { color: var(--sky-300); }
.cs-mega__feature-eyebrow { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em; color: var(--sky-700); }
.cs-mega__feature-title { font-family: var(--font-display); font-size: 1.5rem; line-height: 1.15; color: var(--slate-900); font-weight: 400; letter-spacing: -0.01em; }
.cs-mega__feature p { font-size: 0.88rem; line-height: 1.5; color: var(--slate-600); }
.cs-mega__feature-link { color: var(--sky-700); font-size: 0.9rem; font-weight: 600; margin-top: auto; }
.cs-mega__feature-link:hover { text-decoration: underline; }

/* ============ MOBILE DRAWER ============ */
.cs-mobile {
    position: fixed; top: 0; right: 0;
    width: 340px; max-width: 90vw; height: 100dvh;
    background: #fff; z-index: 1100;
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex; flex-direction: column;
    padding: 1rem 1.25rem 2rem;
    box-shadow: -10px 0 30px rgba(15,23,42,0.1);
    overflow-y: auto;
    overflow-x: hidden;
}
.cs-mobile.is-open { transform: translateX(0); }
.cs-mobile__head { display: flex; align-items: center; justify-content: space-between; padding: 0.5rem 0; }
.cs-mobile__close { width: 36px; height: 36px; border-radius: 8px; color: var(--slate-700); display: inline-flex; align-items: center; justify-content: center; }
.cs-mobile__close:hover { background: var(--slate-100); }
.cs-mobile__cta { display: flex; flex-direction: column; gap: 0.5rem; padding: 1.25rem 0; border-bottom: 1px solid var(--slate-100); }
.cs-mobile__group { border-bottom: 1px solid var(--slate-100); }
.cs-mobile__group-toggle { width: 100%; display: flex; justify-content: space-between; align-items: center; padding: 1rem 0; font-size: 1rem; font-weight: 600; color: var(--slate-800); }
.cs-mobile__group-toggle svg { transition: transform 0.2s; color: var(--slate-500); }
.cs-mobile__group-toggle.is-open svg { transform: rotate(180deg); }
.cs-mobile__group-body { display: none; padding: 0 0 0.75rem 0.75rem; flex-direction: column; gap: 0.65rem; }
.cs-mobile__group-body.is-open { display: flex; }
.cs-mobile__group-body a { color: var(--slate-600); font-size: 0.92rem; }
.cs-mobile__group-body a:hover { color: var(--sky-700); }
.cs-mobile__solo { display: block; padding: 1rem 0; border-bottom: 1px solid var(--slate-100); font-size: 1rem; font-weight: 600; color: var(--slate-800); }
.cs-mobile__overlay { position: fixed; inset: 0; background: rgba(15,23,42,0.5); opacity: 0; visibility: hidden; transition: opacity 0.3s; z-index: 1050; }
.cs-mobile__overlay.is-open { opacity: 1; visibility: visible; }

/* ============ HERO ============ */
.cs-hero {
    position: relative; padding: 6rem 0 8rem; overflow: hidden;
    background: linear-gradient(180deg, #fff 0%, var(--sky-50) 60%, var(--sky-100) 100%);
}
.cs-hero__bg { position: absolute; inset: 0; pointer-events: none; }
.cs-hero__mesh {
    position: absolute; top: -20%; right: -10%; width: 60%; height: 80%;
    background: radial-gradient(circle at center, rgba(14,165,233,0.18), transparent 60%);
    filter: blur(40px);
}
.cs-hero__lines {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(to right, rgba(14,165,233,0.06) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(14,165,233,0.06) 1px, transparent 1px);
    background-size: 80px 80px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
.cs-hero__inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; padding-top: 2rem; }
.cs-hero__lede { font-size: 1.2rem; line-height: 1.6; color: var(--slate-600); max-width: 540px; margin-bottom: 2.5rem; }
.cs-hero__ctas { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 3rem; }
.cs-hero__metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; padding-top: 2rem; border-top: 1px solid rgba(2,132,199,0.15); max-width: 480px; }
.cs-hero__metric { display: flex; flex-direction: column; gap: 0.25rem; }
.cs-hero__metric-num { font-family: var(--font-display); font-size: 1.85rem; line-height: 1; color: var(--slate-900); font-weight: 400; letter-spacing: -0.02em; }
.cs-hero__metric-label { font-size: 0.78rem; color: var(--slate-500); font-weight: 500; }

.cs-hero__visual { position: relative; height: 540px; }
.cs-hero__sync-lines { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 1; pointer-events: none; }
.cs-hero__sync-path { stroke-dasharray: 4 4; animation: dash 6s linear infinite; }
.cs-hero__sync-path--2 { animation-delay: -2s; }
.cs-hero__sync-path--3 { animation-delay: -4s; }
@keyframes dash { to { stroke-dashoffset: -16; } }

.cs-hero__device { position: absolute; background: #fff; border-radius: 14px; box-shadow: var(--shadow-xl); border: 1px solid rgba(15,23,42,0.06); z-index: 2; }
.cs-hero__device--desktop { top: 8%; left: 5%; width: 70%; transform: rotate(-2deg); }
.cs-hero__chrome { display: flex; align-items: center; gap: 6px; padding: 10px 14px; border-bottom: 1px solid var(--slate-100); background: var(--slate-50); border-radius: 14px 14px 0 0; }
.cs-hero__dot { width: 11px; height: 11px; border-radius: 50%; }
.cs-hero__dot--r { background: #FB7185; }
.cs-hero__dot--y { background: #FBBF24; }
.cs-hero__dot--g { background: #34D399; }
.cs-hero__url { margin-left: auto; background: #fff; border: 1px solid var(--slate-200); border-radius: 4px; padding: 3px 10px; font-size: 0.7rem; color: var(--slate-500); font-family: ui-monospace, monospace; }
.cs-hero__screen { padding: 1rem; }
.cs-hero__screen-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; margin-bottom: 1rem; }
.cs-hero__stat { display: flex; flex-direction: column; gap: 0.2rem; padding: 0.85rem; border-radius: 8px; background: var(--slate-50); border: 1px solid var(--slate-100); }
.cs-hero__stat-label { font-size: 0.7rem; color: var(--slate-500); font-weight: 500; }
.cs-hero__stat-num { font-family: var(--font-display); font-size: 1.4rem; color: var(--slate-900); }
.cs-hero__stat-trend { font-size: 0.7rem; color: #16A34A; font-weight: 600; }
.cs-hero__chart { height: 60px; padding: 0.5rem; background: linear-gradient(180deg, var(--sky-50), #fff); border: 1px dashed var(--sky-300); border-radius: 6px; margin-bottom: 0.75rem; }
.cs-hero__chart svg { width: 100%; height: 100%; }
.cs-hero__pulse-row { display: flex; align-items: center; gap: 0.5rem; }
.cs-hero__pulse { width: 8px; height: 8px; border-radius: 50%; background: #16A34A; box-shadow: 0 0 0 4px rgba(22,163,74,0.15); animation: pulse 1.8s ease-in-out infinite; }
.cs-hero__live { font-size: 0.72rem; color: var(--slate-500); font-family: ui-monospace, monospace; }

.cs-hero__device--phone { bottom: 5%; right: 0; width: 130px; padding: 8px; border-radius: 18px; transform: rotate(4deg); }
.cs-hero__phone-notch { width: 36px; height: 4px; background: var(--slate-900); margin: 4px auto 8px; border-radius: 2px; }
.cs-hero__phone-screen { padding: 0.5rem; }
.cs-hero__phone-card { background: linear-gradient(135deg, var(--sky-500), var(--sky-700)); border-radius: 8px; padding: 0.75rem; color: #fff; margin-bottom: 0.5rem; }
.cs-hero__phone-label { display: block; font-size: 0.62rem; opacity: 0.8; }
.cs-hero__phone-num { display: block; font-family: var(--font-display); font-size: 1.05rem; }
.cs-hero__phone-bars { display: flex; gap: 3px; align-items: flex-end; height: 30px; padding: 0.25rem; }
.cs-hero__phone-bars span { flex: 1; background: var(--sky-300); border-radius: 1px; }

.cs-hero__device--extension { top: 14%; right: -6%; width: 200px; padding: 1rem; transform: rotate(3deg); }
.cs-hero__ext-dot { display: inline-block; width: 8px; height: 8px; background: var(--sky-500); border-radius: 50%; margin-bottom: 0.4rem; }
.cs-hero__ext-title { font-size: 0.78rem; font-weight: 700; color: var(--slate-900); margin-bottom: 0.6rem; }
.cs-hero__ext-row { display: flex; gap: 0.35rem; margin-bottom: 0.35rem; }
.cs-hero__ext-pill { flex: 1; padding: 0.45rem 0.5rem; background: var(--slate-50); border: 1px solid var(--slate-200); border-radius: 6px; font-size: 0.7rem; font-weight: 500; color: var(--slate-700); text-align: center; }
.cs-hero__ext-pill--accent { background: var(--sky-50); border-color: var(--sky-300); color: var(--sky-700); }

/* ============ TRUST STRIP ============ */
.cs-trust { padding: 2.5rem 0; border-bottom: 1px solid var(--slate-200); background: #fff; }
.cs-trust__inner { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 2rem 3rem; }
.cs-trust__label { font-size: 0.78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.12em; color: var(--slate-400); margin: 0; }
.cs-trust__industries, .cs-trust__compliance { display: flex; gap: 1.5rem 2rem; flex-wrap: wrap; }
.cs-trust__industries li { font-size: 0.92rem; font-weight: 600; color: var(--slate-700); }
.cs-trust__compliance li { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.85rem; color: var(--slate-600); }
.cs-trust__check { color: var(--sky-600); font-weight: 700; width: 18px; height: 18px; display: inline-flex; align-items: center; justify-content: center; background: var(--sky-50); border-radius: 50%; font-size: 0.7rem; }
.cs-trust__divider { width: 1px; height: 24px; background: var(--slate-200); }

/* ============ PILLARS ============ */
.cs-pillars { padding: var(--section-y) 0; background: var(--bg-soft); }
.cs-pillars__grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1rem; }
.cs-pillar { text-align: left; padding: 1.75rem 1.5rem; background: #fff; border: 1px solid var(--slate-200); border-radius: 14px; transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s; display: flex; flex-direction: column; gap: 0.6rem; }
.cs-pillar:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--sky-300); }
.cs-pillar--active { border-color: var(--sky-500); box-shadow: 0 0 0 4px rgba(14,165,233,0.08); }
.cs-pillar__icon { width: 44px; height: 44px; display: inline-flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--sky-50), var(--sky-100)); border-radius: 10px; color: var(--sky-700); }
.cs-pillar h3 { font-size: 1.15rem; font-weight: 700; color: var(--slate-900); }
.cs-pillar p { font-size: 0.88rem; color: var(--slate-500); line-height: 1.55; margin: 0; }

/* ============ PLATFORM ============ */
.cs-platform { padding: var(--section-y) 0; background: #fff; position: relative; overflow: hidden; }
.cs-platform__diagram { position: relative; width: 100%; max-width: 900px; margin: 4rem auto; aspect-ratio: 16 / 9; }
.cs-platform__hub { position: absolute; top: 50%; left: 50%; width: 140px; height: 140px; transform: translate(-50%, -50%); z-index: 3; }
.cs-platform__hub-inner { position: relative; z-index: 2; width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--sky-500), var(--sky-700)); color: #fff; border-radius: 50%; box-shadow: 0 20px 50px -10px rgba(2,132,199,0.5); font-weight: 700; font-size: 0.95rem; line-height: 1.15; text-align: center; }
.cs-platform__hub-pulse { position: absolute; inset: 0; border: 2px solid var(--sky-500); border-radius: 50%; animation: hub-pulse 3s ease-out infinite; }
@keyframes hub-pulse {
    0% { transform: scale(1); opacity: 0.6; }
    100% { transform: scale(1.7); opacity: 0; }
}
.cs-platform__device { position: absolute; display: flex; align-items: center; gap: 0.6rem; background: #fff; padding: 0.85rem 1.1rem; border: 1px solid var(--slate-200); border-radius: 12px; box-shadow: var(--shadow-md); transition: transform 0.25s, box-shadow 0.25s; z-index: 2; }
.cs-platform__device:hover { transform: scale(1.05); box-shadow: var(--shadow-lg); border-color: var(--sky-300); }
.cs-platform__device-icon { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; background: var(--sky-50); border-radius: 8px; color: var(--sky-700); }
.cs-platform__device-tag { display: block; font-size: 0.62rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--sky-700); }
.cs-platform__device-name { display: block; font-size: 0.88rem; font-weight: 600; color: var(--slate-900); }
.cs-platform__device[data-pos="tl"] { top: 8%;  left: 4%; }
.cs-platform__device[data-pos="tr"] { top: 8%;  right: 4%; }
.cs-platform__device[data-pos="ml"] { top: 50%; left: 0; transform: translateY(-50%); }
.cs-platform__device[data-pos="ml"]:hover { transform: translateY(-50%) scale(1.05); }
.cs-platform__device[data-pos="mr"] { top: 50%; right: 0; transform: translateY(-50%); }
.cs-platform__device[data-pos="mr"]:hover { transform: translateY(-50%) scale(1.05); }
.cs-platform__device[data-pos="bl"] { bottom: 8%; left: 4%; }
.cs-platform__device[data-pos="br"] { bottom: 8%; right: 4%; }
.cs-platform__diagram::before { content: ""; position: absolute; inset: 0; background-image: radial-gradient(circle at center, rgba(14,165,233,0.06) 1px, transparent 1px); background-size: 16px 16px; border-radius: 50%; z-index: 1; }
.cs-platform__features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; padding: 2rem; background: var(--bg-soft); border: 1px solid var(--slate-200); border-radius: 16px; }
.cs-platform__feature { display: flex; flex-direction: column; gap: 0.35rem; }
.cs-platform__feature-icon { width: 36px; height: 36px; background: var(--sky-50); border-radius: 8px; color: var(--sky-700); display: flex; align-items: center; justify-content: center; margin-bottom: 0.4rem; }
.cs-platform__feature strong { font-size: 0.95rem; color: var(--slate-900); }
.cs-platform__feature span { font-size: 0.85rem; color: var(--slate-500); line-height: 1.5; }

/* ============ ECOSYSTEM ============ */
.cs-ecosystem { padding: var(--section-y) 0; background: var(--bg-soft); }
.cs-ecosystem__layout { display: grid; grid-template-columns: 1fr 1.1fr 1fr; gap: 1.5rem; align-items: stretch; }
.cs-ecosystem__col { background: #fff; border: 1px solid var(--slate-200); border-radius: 16px; padding: 1.75rem; }
.cs-ecosystem__col-title { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em; color: var(--slate-400); margin-bottom: 1.25rem; }
.cs-ecosystem__logos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.5rem; }
.cs-ecosystem__logo { padding: 0.7rem 0.5rem; text-align: center; font-size: 0.78rem; font-weight: 600; color: var(--slate-700); background: var(--bg-soft); border: 1px solid var(--slate-200); border-radius: 8px; transition: border-color 0.2s, color 0.2s; }
.cs-ecosystem__logo:hover { border-color: var(--sky-300); color: var(--sky-700); }
.cs-ecosystem__logo--more { grid-column: 1 / -1; color: var(--sky-700); border-style: dashed; }
.cs-ecosystem__col--center { background: linear-gradient(180deg, var(--slate-900), var(--sky-900)); border-color: var(--slate-800); color: #fff; }
.cs-ecosystem__hub { display: flex; flex-direction: column; height: 100%; }
.cs-ecosystem__hub-eyebrow { display: inline-block; align-self: flex-start; font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em; color: var(--sky-300); padding: 0.3rem 0.6rem; background: rgba(14,165,233,0.15); border-radius: 4px; margin-bottom: 1rem; }
.cs-ecosystem__hub h4 { font-family: var(--font-display); font-size: 1.7rem; font-weight: 400; line-height: 1.15; color: #fff; margin-bottom: 1.25rem; }
.cs-ecosystem__capabilities { display: flex; flex-direction: column; gap: 0.5rem; flex: 1; }
.cs-ecosystem__capabilities li { padding: 0.7rem 1rem; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); border-radius: 8px; font-size: 0.88rem; color: var(--slate-200); font-weight: 500; }
.cs-ecosystem__hub-foot { display: flex; align-items: center; gap: 0.5rem; margin-top: 1.25rem; padding-top: 1.25rem; border-top: 1px solid rgba(255,255,255,0.1); font-size: 0.78rem; color: var(--slate-300); }
.cs-ecosystem__outcomes { display: flex; flex-direction: column; gap: 0.85rem; }
.cs-ecosystem__outcomes li { padding: 0.85rem 1rem; background: var(--bg-soft); border: 1px solid var(--slate-200); border-radius: 8px; transition: border-color 0.2s; }
.cs-ecosystem__outcomes li:hover { border-color: var(--sky-300); }
.cs-ecosystem__outcomes strong { display: block; font-size: 0.92rem; color: var(--slate-900); margin-bottom: 0.15rem; }
.cs-ecosystem__outcomes span { font-size: 0.78rem; color: var(--slate-500); }
/* ============ CHROME EXTENSIONS ============ */
.cs-chrome { padding: var(--section-y) 0; background: #fff; }
.cs-chrome__header { margin-bottom: 3.5rem; max-width: 760px; }
.cs-chrome__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; margin-bottom: 2rem; }
.cs-chrome__card { display: flex; flex-direction: column; gap: 0.6rem; padding: 1.75rem; background: var(--bg-soft); border: 1px solid var(--slate-200); border-radius: 16px; transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s; }
.cs-chrome__card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--sky-300); }
.cs-chrome__tag { display: inline-flex; width: fit-content; padding: 0.25rem 0.6rem; font-size: 0.72rem; font-weight: 600; color: var(--sky-700); background: var(--sky-50); border-radius: 999px; margin-bottom: 0.5rem; }
.cs-chrome__icon { width: 56px; height: 56px; display: flex; align-items: center; justify-content: center; border-radius: 14px; color: #fff; margin-bottom: 0.6rem; }
.cs-chrome__icon--shield { background: linear-gradient(135deg, #2563EB, #1E40AF); }
.cs-chrome__icon--clock  { background: linear-gradient(135deg, #8B5CF6, #6D28D9); }
.cs-chrome__icon--surf   { background: linear-gradient(135deg, #14B8A6, #0F766E); }
.cs-chrome__card h3 { font-size: 1.2rem; font-weight: 700; color: var(--slate-900); }
.cs-chrome__card p { font-size: 0.92rem; color: var(--slate-600); line-height: 1.55; margin: 0; }
.cs-chrome__cta { margin-top: auto; padding-top: 0.75rem; font-size: 0.88rem; font-weight: 600; color: var(--sky-700); }
.cs-chrome__card:hover .cs-chrome__cta { color: var(--sky-900); }
.cs-chrome__overlook { background: linear-gradient(135deg, var(--sky-50), #fff); border: 1px solid var(--sky-100); border-radius: 16px; padding: 2rem; display: grid; grid-template-columns: auto 1fr auto; gap: 2rem; align-items: center; }
.cs-chrome__overlook-brand { display: flex; align-items: center; gap: 1rem; }
.cs-chrome__overlook-icon { width: 56px; height: 56px; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--sky-500), var(--sky-700)); color: #fff; border-radius: 14px; }
.cs-chrome__overlook-brand h4 { font-family: var(--font-display); font-size: 1.4rem; font-weight: 400; line-height: 1.1; color: var(--slate-900); }
.cs-chrome__overlook-brand h4 span { display: block; color: var(--sky-600); }
.cs-chrome__overlook-tagline { font-size: 0.85rem; color: var(--slate-500); }
.cs-chrome__overlook p { font-size: 0.92rem; color: var(--slate-600); margin: 0; }
.cs-chrome__overlook-steps { display: flex; gap: 1rem; align-items: center; }
.cs-chrome__overlook-steps li { display: flex; flex-direction: column; align-items: center; gap: 0.3rem; font-size: 0.78rem; color: var(--slate-700); font-weight: 500; }
.cs-chrome__overlook-steps li span { width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; background: var(--sky-500); color: #fff; border-radius: 50%; font-weight: 700; font-size: 0.78rem; }

/* ============ POS ============ */
.cs-pos { padding: var(--section-y) 0; background: var(--bg-soft); }
.cs-pos__layout { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.cs-pos__copy p { font-size: 1.05rem; color: var(--slate-600); line-height: 1.6; margin-bottom: 2rem; }
.cs-pos__features { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 2rem; }
.cs-pos__features li { display: grid; grid-template-columns: 1fr; gap: 0.15rem; padding: 1rem 1.25rem; background: #fff; border: 1px solid var(--slate-200); border-radius: 10px; }
.cs-pos__features strong { font-size: 0.95rem; color: var(--slate-900); }
.cs-pos__features span { font-size: 0.85rem; color: var(--slate-500); }
.cs-pos__verticals { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.75rem; margin-bottom: 2rem; }
.cs-pos__vertical { display: flex; flex-direction: column; gap: 0.2rem; padding: 1rem; background: #fff; border: 1px solid var(--slate-200); border-radius: 10px; }
.cs-pos__vertical-icon { width: 32px; height: 32px; display: flex; align-items: center; justify-content: center; background: var(--sky-50); color: var(--sky-700); border-radius: 8px; margin-bottom: 0.4rem; }
.cs-pos__vertical strong { font-size: 0.92rem; color: var(--slate-900); }
.cs-pos__vertical span { font-size: 0.78rem; color: var(--slate-500); }
.cs-pos__visual { position: relative; }
.cs-pos__terminal { background: #fff; border: 1px solid var(--slate-200); border-radius: 16px; box-shadow: var(--shadow-xl); padding: 1.5rem; overflow: hidden; }
.cs-pos__terminal-head { display: flex; justify-content: space-between; align-items: center; padding-bottom: 0.85rem; margin-bottom: 1rem; border-bottom: 1px solid var(--slate-100); }
.cs-pos__terminal-label { font-size: 0.78rem; font-weight: 600; color: var(--slate-700); }
.cs-pos__terminal-time { font-size: 0.78rem; color: var(--slate-500); font-family: ui-monospace, monospace; }
.cs-pos__terminal-tabs { display: flex; gap: 0.4rem; margin-bottom: 1rem; flex-wrap: wrap; }
.cs-pos__terminal-tab { padding: 0.45rem 0.85rem; background: var(--bg-soft); border: 1px solid var(--slate-200); border-radius: 6px; font-size: 0.78rem; color: var(--slate-600); font-weight: 500; }
.cs-pos__terminal-tab--active { background: var(--sky-500); color: #fff; border-color: var(--sky-500); }
.cs-pos__terminal-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.5rem; margin-bottom: 1rem; }
.cs-pos__terminal-item { display: flex; flex-direction: column; gap: 0.2rem; padding: 0.75rem; background: var(--bg-soft); border: 1px solid var(--slate-200); border-radius: 8px; text-align: center; }
.cs-pos__terminal-item span { font-size: 0.7rem; color: var(--slate-500); }
.cs-pos__terminal-item strong { font-size: 0.92rem; color: var(--slate-900); }
.cs-pos__terminal-total { display: flex; justify-content: space-between; align-items: baseline; padding: 1rem 0; border-top: 1px solid var(--slate-100); }
.cs-pos__terminal-total span { font-size: 0.95rem; color: var(--slate-600); }
.cs-pos__terminal-total strong { font-family: var(--font-display); font-size: 1.7rem; color: var(--slate-900); }
.cs-pos__terminal-pay { width: 100%; padding: 0.95rem; background: #16A34A; color: #fff; border-radius: 10px; font-size: 0.95rem; font-weight: 700; transition: background 0.15s; }
.cs-pos__terminal-pay:hover { background: #15803D; }
.cs-pos__ecosystem { display: flex; gap: 0.5rem; flex-wrap: wrap; justify-content: center; margin-top: 1.5rem; }
.cs-pos__eco-item { padding: 0.5rem 0.9rem; background: #fff; border: 1px solid var(--slate-200); border-radius: 999px; font-size: 0.78rem; color: var(--slate-600); font-weight: 500; }

/* ============ WHITE-LABEL (DARK) ============ */
.cs-whitelabel { position: relative; padding: var(--section-y) 0; background: linear-gradient(180deg, var(--ink) 0%, var(--slate-900) 100%); color: #fff; overflow: hidden; }
.cs-whitelabel__bg { position: absolute; inset: 0; pointer-events: none; }
.cs-whitelabel__glow { position: absolute; top: -20%; right: -10%; width: 70%; height: 80%; background: radial-gradient(circle, rgba(14,165,233,0.25), transparent 60%); filter: blur(60px); }
.cs-whitelabel__grid { position: absolute; inset: 0; background-image: linear-gradient(to right, rgba(255,255,255,0.04) 1px, transparent 1px), linear-gradient(to bottom, rgba(255,255,255,0.04) 1px, transparent 1px); background-size: 50px 50px; mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%); -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%); }
.cs-whitelabel .cs-container { position: relative; z-index: 2; }
.cs-whitelabel__grid-content { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-bottom: 3rem; }
.cs-whitelabel__feature { display: flex; flex-direction: column; gap: 0.5rem; padding: 1.75rem; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.08); border-radius: 14px; transition: background 0.25s, border-color 0.25s; }
.cs-whitelabel__feature:hover { background: rgba(255,255,255,0.05); border-color: rgba(14,165,233,0.4); }
.cs-whitelabel__icon { width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--sky-500), var(--sky-700)); color: #fff; border-radius: 10px; margin-bottom: 0.4rem; }
.cs-whitelabel__feature h4 { font-size: 1.05rem; font-weight: 700; color: #fff; }
.cs-whitelabel__feature p { font-size: 0.88rem; color: var(--slate-400); line-height: 1.55; margin: 0; }
.cs-whitelabel__promise { display: flex; gap: 1.25rem; align-items: flex-start; padding: 2rem; background: linear-gradient(135deg, rgba(14,165,233,0.08), rgba(14,165,233,0.02)); border: 1px solid rgba(14,165,233,0.2); border-radius: 16px; }
.cs-whitelabel__promise-icon { flex-shrink: 0; width: 56px; height: 56px; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--sky-500), var(--sky-700)); color: #fff; border-radius: 14px; }
.cs-whitelabel__promise strong { display: block; font-size: 1.1rem; color: #fff; margin-bottom: 0.4rem; }
.cs-whitelabel__promise p { font-size: 0.95rem; color: var(--slate-300); line-height: 1.55; margin: 0; }

/* ============ AI (DARK) ============ */
.cs-ai { position: relative; padding: var(--section-y) 0; background: radial-gradient(ellipse at top right, rgba(139,92,246,0.15), transparent 50%), radial-gradient(ellipse at bottom left, rgba(14,165,233,0.15), transparent 50%), var(--ink); color: #fff; overflow: hidden; }
.cs-ai__bg { position: absolute; inset: 0; pointer-events: none; }
.cs-ai__noise { position: absolute; inset: 0; background-image: radial-gradient(rgba(255,255,255,0.04) 1px, transparent 1px); background-size: 4px 4px; }
.cs-ai .cs-container { position: relative; z-index: 2; }
.cs-ai__head { text-align: center; max-width: 700px; margin: 0 auto 4rem; }
.cs-ai__grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1.5rem; margin-bottom: 3rem; }
.cs-ai__card { padding: 2rem; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.1); border-radius: 16px; backdrop-filter: blur(10px); }
.cs-ai__tag { display: inline-block; padding: 0.3rem 0.75rem; font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; background: rgba(14,165,233,0.15); color: var(--sky-300); border-radius: 4px; margin-bottom: 1rem; }
.cs-ai__card h3 { font-family: var(--font-display); font-size: 1.6rem; font-weight: 400; color: #fff; line-height: 1.15; margin-bottom: 0.85rem; letter-spacing: -0.01em; }
.cs-ai__card p { font-size: 0.92rem; color: var(--slate-300); line-height: 1.6; margin-bottom: 1.5rem; }
.cs-ai__checklist { display: flex; flex-direction: column; gap: 0.55rem; margin-bottom: 1.25rem; }
.cs-ai__checklist li { position: relative; padding-left: 1.5rem; font-size: 0.88rem; color: var(--slate-300); line-height: 1.5; }
.cs-ai__checklist li::before { content: "\2713"; position: absolute; left: 0; color: var(--sky-300); font-weight: 700; }
.cs-ai__pills { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.cs-ai__pills span { padding: 0.3rem 0.7rem; background: rgba(14,165,233,0.1); color: var(--sky-300); border: 1px solid rgba(14,165,233,0.2); border-radius: 999px; font-size: 0.75rem; font-weight: 500; }
.cs-ai__providers { padding: 2rem; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.1); border-radius: 16px; }
.cs-ai__providers-title { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em; color: var(--slate-400); margin-bottom: 1.25rem; }
.cs-ai__provider-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem; margin-bottom: 1rem; }
.cs-ai__provider { padding: 0.85rem; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); border-radius: 10px; transition: border-color 0.2s; }
.cs-ai__provider:hover { border-color: rgba(14,165,233,0.3); }
.cs-ai__provider strong { display: block; font-size: 0.92rem; color: #fff; margin-bottom: 0.15rem; }
.cs-ai__provider span { font-size: 0.75rem; color: var(--slate-400); }
.cs-ai__providers-note { font-size: 0.82rem; color: var(--slate-400); line-height: 1.5; margin: 0; }
.cs-ai__promise { display: flex; flex-direction: column; gap: 0.4rem; padding: 1.75rem; background: linear-gradient(135deg, rgba(14,165,233,0.1), rgba(14,165,233,0.02)); border: 1px solid rgba(14,165,233,0.25); border-radius: 16px; text-align: center; }
.cs-ai__promise strong { font-size: 1.1rem; color: #fff; }
.cs-ai__promise span { font-size: 0.92rem; color: var(--slate-300); }

/* ============ PRIVACY ============ */
.cs-privacy { padding: var(--section-y) 0; background: #fff; }
.cs-privacy__layout { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.cs-privacy__copy p { font-size: 1.05rem; color: var(--slate-600); line-height: 1.6; margin-bottom: 2rem; }
.cs-privacy__points { display: flex; flex-direction: column; gap: 1rem; }
.cs-privacy__points li { display: flex; gap: 1rem; align-items: flex-start; }
.cs-privacy__check { flex-shrink: 0; width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; background: var(--sky-50); color: var(--sky-700); border-radius: 50%; font-weight: 700; font-size: 0.85rem; }
.cs-privacy__points strong { display: block; font-size: 0.95rem; color: var(--slate-900); margin-bottom: 0.15rem; }
.cs-privacy__points span { font-size: 0.85rem; color: var(--slate-500); line-height: 1.5; }
.cs-privacy__badges { padding: 2.5rem; background: linear-gradient(135deg, var(--sky-50), #fff); border: 1px solid var(--sky-100); border-radius: 20px; }
.cs-privacy__badges-title { display: block; font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.12em; color: var(--slate-400); margin-bottom: 1.5rem; }
.cs-privacy__badge-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; }
.cs-privacy__badge { padding: 1.25rem 1rem; background: #fff; border: 1px solid var(--slate-200); border-radius: 12px; text-align: center; transition: border-color 0.2s, box-shadow 0.2s; }
.cs-privacy__badge:hover { border-color: var(--sky-500); box-shadow: var(--shadow-md); }
.cs-privacy__badge strong { display: block; font-size: 1rem; color: var(--slate-900); margin-bottom: 0.2rem; letter-spacing: 0.04em; }
.cs-privacy__badge span { font-size: 0.72rem; color: var(--slate-500); }

/* ============ LIFECYCLE ============ */
.cs-lifecycle { padding: var(--section-y) 0; background: var(--bg-soft); }
.cs-lifecycle__approach { display: flex; gap: 1rem; justify-content: center; margin-bottom: 4rem; flex-wrap: wrap; }
.cs-lifecycle__approach-btn { display: flex; flex-direction: column; gap: 0.25rem; align-items: flex-start; padding: 1.25rem 1.5rem; background: #fff; border: 2px solid var(--slate-200); border-radius: 12px; min-width: 240px; transition: all 0.2s; text-align: left; }
.cs-lifecycle__approach-btn--active { border-color: var(--sky-500); box-shadow: 0 0 0 4px rgba(14,165,233,0.08); }
.cs-lifecycle__approach-btn:hover { border-color: var(--sky-300); }
.cs-lifecycle__approach-tag { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--sky-600); }
.cs-lifecycle__approach-desc { font-size: 1rem; font-weight: 600; color: var(--slate-900); }
.cs-lifecycle__approach-flow { font-size: 0.82rem; color: var(--slate-500); font-family: ui-monospace, monospace; }
.cs-lifecycle__timeline { position: relative; }
.cs-lifecycle__progress { position: absolute; top: 24px; left: 0; right: 0; height: 2px; background: linear-gradient(to right, var(--sky-500), var(--sky-300) 70%, var(--slate-200)); border-radius: 2px; }
.cs-lifecycle__steps { display: grid; grid-template-columns: repeat(7, 1fr); gap: 0.5rem; position: relative; }
.cs-lifecycle__step { display: flex; flex-direction: column; gap: 0.4rem; padding-top: 1rem; }
.cs-lifecycle__num { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; background: #fff; border: 2px solid var(--sky-500); border-radius: 50%; font-family: var(--font-display); font-size: 0.92rem; color: var(--sky-700); margin-bottom: 0.4rem; box-shadow: 0 0 0 4px var(--bg-soft); position: relative; z-index: 2; }
.cs-lifecycle__step h4 { font-size: 0.95rem; font-weight: 700; color: var(--slate-900); }
.cs-lifecycle__step p { font-size: 0.8rem; color: var(--slate-500); line-height: 1.5; margin: 0; }

/* ============ ENGAGEMENT (preserved) ============ */
.cs-engagement { padding: var(--section-y) 0; background: #fff; }
.cs-engagement__layout { display: grid; grid-template-columns: 1.1fr 1fr; gap: 4rem; align-items: start; }
.cs-engagement__data > p { font-size: 1.05rem; color: var(--slate-500); margin-bottom: 2rem; }
.cs-engagement__switch { display: inline-flex; padding: 4px; background: var(--bg-soft); border: 1px solid var(--slate-200); border-radius: 10px; margin-bottom: 2rem; gap: 4px; }
.cs-engagement__switch-btn { padding: 0.7rem 1.25rem; border-radius: 8px; font-size: 0.9rem; font-weight: 600; color: var(--slate-600); transition: all 0.2s; }
.cs-engagement__switch-btn--active { background: #fff; color: var(--sky-700); box-shadow: var(--shadow-sm); }
.cs-engagement__table { width: 100%; border-collapse: separate; border-spacing: 0; }
.cs-engagement__table th, .cs-engagement__table td { text-align: left; padding: 1.25rem 0; border-bottom: 1px solid var(--slate-200); }
.cs-engagement__table th { font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--slate-500); width: 30%; vertical-align: top; }
.cs-engagement__table tr:last-child th, .cs-engagement__table tr:last-child td { border-bottom: none; }
.cs-engagement__highlight { display: block; font-size: 1.05rem; font-weight: 700; color: var(--slate-900); margin-bottom: 0.2rem; }
.cs-engagement__sub { display: block; font-size: 0.88rem; color: var(--slate-500); }

.cs-engagement__visual { padding: 2rem; background: linear-gradient(180deg, var(--slate-900), var(--ink)); border-radius: 16px; color: #fff; position: sticky; top: 96px; }
.cs-engagement__visual-head { margin-bottom: 1.5rem; padding-bottom: 1.5rem; border-bottom: 1px solid rgba(255,255,255,0.1); }
.cs-engagement__visual-label { font-family: ui-monospace, monospace; font-size: 0.72rem; color: var(--sky-300); letter-spacing: 0.1em; }
.cs-engagement__visual h3 { font-family: var(--font-display); font-size: 2rem; color: #fff; font-weight: 400; margin-top: 0.4rem; margin-bottom: 0.6rem; line-height: 1.1; }
.cs-engagement__visual p { font-size: 0.92rem; color: var(--slate-300); margin: 0; }
.cs-engagement__diagram { display: flex; gap: 1.5rem; padding: 1.5rem 0; }
.cs-engagement__shape-list { flex: 1; display: flex; flex-direction: column; gap: 0.5rem; }
.cs-engagement__shape-line { height: 8px; background: rgba(14,165,233,0.3); border-radius: 4px; }
.cs-engagement__shape-line--short { width: 60%; }
.cs-engagement__shape-finish { width: 18px; height: 18px; background: #22C55E; border-radius: 50%; margin-top: 0.5rem; margin-left: auto; }
.cs-engagement__shape-loop { width: 80px; height: 80px; border: 3px solid rgba(14,165,233,0.5); border-top-color: var(--sky-300); border-radius: 50%; align-self: center; animation: spin 4s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.cs-engagement__status { font-family: ui-monospace, monospace; font-size: 0.72rem; color: var(--slate-400); text-align: right; letter-spacing: 0.1em; }

/* ============ ROI (preserved) ============ */
.cs-roi { padding: var(--section-y) 0; background: var(--bg-soft); }
.cs-roi__grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 3rem; align-items: start; }
.cs-roi__inputs > p { font-size: 1.05rem; color: var(--slate-600); margin-bottom: 2.5rem; max-width: 520px; }
.cs-roi__group { margin-bottom: 1.75rem; }
.cs-roi__row { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 0.6rem; font-size: 0.92rem; color: var(--slate-700); font-weight: 500; }
.cs-roi__value { font-family: var(--font-display); font-size: 1.15rem; color: var(--sky-700); font-weight: 400; }
.cs-roi__slider { width: 100%; appearance: none; -webkit-appearance: none; height: 4px; background: var(--slate-200); border-radius: 2px; outline: none; }
.cs-roi__slider::-webkit-slider-thumb { -webkit-appearance: none; width: 22px; height: 22px; border-radius: 50%; background: linear-gradient(180deg, var(--sky-500), var(--sky-600)); cursor: pointer; box-shadow: 0 4px 8px -2px rgba(2,132,199,0.4); }
.cs-roi__slider::-moz-range-thumb { width: 22px; height: 22px; border-radius: 50%; background: var(--sky-500); cursor: pointer; border: none; box-shadow: 0 4px 8px -2px rgba(2,132,199,0.4); }

.cs-roi__result { padding: 2.5rem; background: linear-gradient(135deg, var(--slate-900), var(--ink)); border-radius: 20px; color: #fff; box-shadow: var(--shadow-xl); position: sticky; top: 96px; }
.cs-roi__result-label { display: block; font-size: 0.78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.12em; color: var(--sky-300); margin-bottom: 0.75rem; }
.cs-roi__big { font-family: var(--font-display); font-size: clamp(3rem, 6vw, 4.5rem); line-height: 1; color: #fff; font-weight: 400; letter-spacing: -0.03em; margin-bottom: 1.5rem; background: linear-gradient(180deg, #fff, var(--sky-300)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.cs-roi__rec { font-size: 0.95rem; color: var(--slate-300); line-height: 1.6; margin-bottom: 1.5rem; }
.cs-roi__rec strong { color: #fff; }
.cs-roi__payback { display: inline-block; padding: 0.6rem 1rem; background: rgba(14,165,233,0.15); border: 1px solid rgba(14,165,233,0.3); border-radius: 999px; font-size: 0.85rem; color: var(--sky-300); font-weight: 600; margin-bottom: 2rem; }
.cs-roi__payback span { color: #fff; font-family: var(--font-display); font-size: 0.95rem; }

/* ============ CASES (DARK) ============ */
.cs-cases { padding: var(--section-y) 0; background: linear-gradient(180deg, var(--ink), var(--slate-900)); color: #fff; position: relative; overflow: hidden; }
.cs-cases::before { content: ""; position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 80%; height: 60%; background: radial-gradient(ellipse at center, rgba(14,165,233,0.18), transparent 70%); pointer-events: none; }
.cs-cases .cs-container { position: relative; z-index: 2; }
.cs-cases__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.cs-case { display: flex; flex-direction: column; gap: 0.85rem; padding: 2rem; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.1); border-radius: 18px; transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s; backdrop-filter: blur(10px); }
.cs-case:hover { transform: translateY(-6px); border-color: rgba(255,255,255,0.18); box-shadow: 0 30px 60px -20px rgba(0,0,0,0.5); }
.cs-case__head { display: flex; flex-direction: column; gap: 0.35rem; }
.cs-case__num { font-family: ui-monospace, monospace; font-size: 0.75rem; color: var(--sky-300); letter-spacing: 0.12em; text-transform: uppercase; }
.cs-case__industry { font-size: 0.78rem; color: var(--slate-400); }
.cs-case h3 { font-family: var(--font-display); font-size: 1.4rem; font-weight: 400; color: #fff; line-height: 1.2; letter-spacing: -0.01em; }
.cs-case p { font-size: 0.9rem; color: var(--slate-300); line-height: 1.55; margin: 0; }
.cs-case__metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.5rem; margin-top: 0.5rem; padding: 1rem 0; border-top: 1px solid rgba(255,255,255,0.08); border-bottom: 1px solid rgba(255,255,255,0.08); }
.cs-case__metrics > div { display: flex; flex-direction: column; gap: 0.15rem; }
.cs-case__metrics strong { font-family: var(--font-display); font-size: 1.4rem; color: #fff; line-height: 1; }
.cs-case__metrics span { font-size: 0.7rem; color: var(--slate-400); }
.cs-case__cta { margin-top: auto; font-size: 0.88rem; font-weight: 600; color: var(--sky-300); }
.cs-case--blue::before, .cs-case--green::before, .cs-case--purple::before { content: ""; position: absolute; top: 0; left: 0; width: 60px; height: 4px; border-radius: 0 0 4px 0; }
.cs-case { position: relative; overflow: hidden; }
.cs-case--blue::before { background: linear-gradient(90deg, var(--sky-500), var(--sky-700)); }
.cs-case--green::before { background: linear-gradient(90deg, #16A34A, #047857); }
.cs-case--purple::before { background: linear-gradient(90deg, #8B5CF6, #6D28D9); }

/* ============ COMPARE ============ */
.cs-compare { padding: var(--section-y) 0; background: #fff; }
.cs-compare__table { background: #fff; border: 1px solid var(--slate-200); border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-md); }
.cs-compare__row { display: grid; grid-template-columns: 1fr 1.2fr 1.2fr; align-items: center; padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--slate-100); }
.cs-compare__row:last-child { border-bottom: none; }
.cs-compare__row--head { background: linear-gradient(180deg, var(--slate-900), var(--ink)); color: #fff; padding: 1.5rem; }
.cs-compare__row--head > div { font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; }
.cs-compare__row--head .cs-compare__partner { color: var(--sky-300); }
.cs-compare__metric { font-weight: 600; color: var(--slate-700); font-size: 0.95rem; }
.cs-compare__agency-val { color: var(--slate-500); font-size: 0.92rem; }
.cs-compare__partner-val { display: flex; align-items: center; gap: 0.5rem; color: var(--sky-700); font-weight: 600; font-size: 0.95rem; background: var(--sky-50); padding: 0.6rem 0.85rem; margin: -0.6rem -0.85rem; border-radius: 8px; }
.cs-compare__partner-val svg { color: var(--sky-600); flex-shrink: 0; }

/* ============ AUDIENCE ============ */
.cs-audience { padding: var(--section-y) 0; background: var(--bg-soft); }
.cs-audience__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.cs-audience__card { padding: 2rem; background: #fff; border: 1px solid var(--slate-200); border-radius: 16px; transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s; }
.cs-audience__card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--sky-300); }
.cs-audience__icon { width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--sky-50), var(--sky-100)); color: var(--sky-700); border-radius: 12px; margin-bottom: 1.25rem; }
.cs-audience__card h3 { font-family: var(--font-display); font-size: 1.5rem; color: var(--slate-900); font-weight: 400; margin-bottom: 0.85rem; line-height: 1.15; }
.cs-audience__card > p { font-size: 0.95rem; color: var(--slate-500); line-height: 1.6; margin-bottom: 1.5rem; }
.cs-audience__diag { padding: 1.25rem; background: var(--bg-soft); border: 1px solid var(--slate-200); border-radius: 10px; }
.cs-audience__diag-row { display: flex; flex-direction: column; gap: 0.2rem; padding-bottom: 0.85rem; }
.cs-audience__diag-row:last-child { padding-bottom: 0; }
.cs-audience__diag-row + .cs-audience__diag-row { border-top: 1px solid var(--slate-200); padding-top: 0.85rem; }
.cs-audience__diag-label { font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--slate-400); }
.cs-audience__diag-bad { font-size: 0.88rem; color: #DC2626; font-weight: 500; }
.cs-audience__diag-good { font-size: 0.88rem; color: #15803D; font-weight: 600; }

/* ============ CONTACT (DARK) ============ */
.cs-contact { position: relative; padding: var(--section-y) 0; background: linear-gradient(180deg, var(--slate-900), var(--ink)); color: #fff; overflow: hidden; }
.cs-contact__bg { position: absolute; inset: 0; pointer-events: none; }
.cs-contact__glow { position: absolute; width: 500px; height: 500px; border-radius: 50%; filter: blur(80px); }
.cs-contact__glow--a { top: -10%; left: -10%; background: rgba(14,165,233,0.2); }
.cs-contact__glow--b { bottom: -10%; right: -10%; background: rgba(139,92,246,0.15); }
.cs-contact__grid { position: absolute; inset: 0; background-image: linear-gradient(to right, rgba(255,255,255,0.03) 1px, transparent 1px), linear-gradient(to bottom, rgba(255,255,255,0.03) 1px, transparent 1px); background-size: 50px 50px; mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%); -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%); }
.cs-contact__inner { position: relative; z-index: 2; max-width: var(--container); margin: 0 auto; padding: 0 1.5rem; display: grid; grid-template-columns: 1.1fr 1fr; gap: 4rem; align-items: center; }
.cs-contact__copy h2 { color: #fff; }
.cs-contact__lede { font-size: 1.15rem; color: var(--slate-300); line-height: 1.6; margin-bottom: 2.5rem; max-width: 520px; }
.cs-contact__perks { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 2rem; }
.cs-contact__perks li { display: flex; align-items: center; gap: 0.75rem; color: var(--slate-200); font-size: 0.95rem; }
.cs-contact__perks svg { color: var(--sky-300); flex-shrink: 0; }
.cs-contact__divider { width: 60px; height: 1px; background: rgba(255,255,255,0.2); margin: 1.5rem 0; }
.cs-contact__compliance { display: flex; gap: 1rem; flex-wrap: wrap; }
.cs-contact__compliance span { padding: 0.4rem 0.85rem; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.1); border-radius: 4px; font-size: 0.78rem; font-weight: 600; color: var(--slate-300); letter-spacing: 0.04em; }

.cs-contact__card { background: #fff; padding: 2.25rem; border-radius: 20px; color: var(--slate-900); box-shadow: 0 30px 60px -20px rgba(0,0,0,0.4); }
.cs-form__row { margin-bottom: 1.25rem; }
.cs-form__label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--slate-700); margin-bottom: 0.5rem; }
.cs-form__input, .cs-form__textarea { width: 100%; padding: 0.85rem 1rem; border: 1px solid var(--slate-200); border-radius: 10px; font-family: inherit; font-size: 0.95rem; background: var(--bg-soft); color: var(--slate-900); transition: border-color 0.15s, background 0.15s, box-shadow 0.15s; }
.cs-form__input:focus, .cs-form__textarea:focus { outline: none; border-color: var(--sky-500); background: #fff; box-shadow: 0 0 0 4px rgba(14,165,233,0.1); }
.cs-form__textarea { min-height: 110px; resize: vertical; }
.cs-form__note { display: flex; align-items: center; justify-content: center; gap: 0.4rem; margin-top: 1rem; font-size: 0.78rem; color: var(--slate-500); }
.cs-form__note svg { color: var(--slate-400); }

/* ============ FOOTER ============ */
.cs-footer { background: var(--ink); color: var(--slate-400); padding: 4.5rem 0 2.5rem; }
.cs-footer__inner { max-width: var(--container); margin: 0 auto; padding: 0 1.5rem; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 2.5rem; }
.cs-footer__brand p { font-size: 0.9rem; color: var(--slate-400); line-height: 1.6; margin: 1rem 0 1.5rem; max-width: 320px; }
.cs-footer__compliance { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.cs-footer__badge { padding: 0.3rem 0.6rem; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); border-radius: 4px; font-size: 0.7rem; font-weight: 600; color: var(--slate-300); letter-spacing: 0.04em; }
.cs-footer__col h4 { font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: #fff; margin-bottom: 1rem; }
.cs-footer__col a { display: block; font-size: 0.88rem; color: var(--slate-400); padding: 0.35rem 0; transition: color 0.15s; }
.cs-footer__col a:hover { color: var(--sky-300); }
.cs-footer__base { max-width: var(--container); margin: 3rem auto 0; padding: 2rem 1.5rem 0; border-top: 1px solid rgba(255,255,255,0.08); font-size: 0.82rem; color: var(--slate-500); text-align: center; }

/* ============ MODAL ============ */
.cs-modal { position: fixed; inset: 0; background: rgba(15,23,42,0.7); backdrop-filter: blur(8px); z-index: 9999; display: flex; align-items: center; justify-content: center; padding: 1.5rem; }
.cs-modal__card { background: #fff; max-width: 460px; padding: 2.5rem; border-radius: 20px; text-align: center; box-shadow: var(--shadow-xl); }
.cs-modal__icon { width: 72px; height: 72px; background: linear-gradient(135deg, #DCFCE7, #BBF7D0); color: #15803D; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; margin-bottom: 1.5rem; }
.cs-modal__card h3 { font-family: var(--font-display); font-size: 1.7rem; color: var(--slate-900); margin-bottom: 0.6rem; font-weight: 400; }
.cs-modal__card p { font-size: 0.95rem; color: var(--slate-600); margin-bottom: 2rem; line-height: 1.55; }

/* ============ SCROLL ANIMATIONS ============ */
.cs-fade-up { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.cs-fade-up.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
    .cs-fade-up { opacity: 1; transform: none; }
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1100px) {
    .cs-pillars__grid { grid-template-columns: repeat(3, 1fr); }
    .cs-ecosystem__layout { grid-template-columns: 1fr; }
    .cs-platform__features { grid-template-columns: repeat(2, 1fr); }
    .cs-whitelabel__grid-content { grid-template-columns: repeat(2, 1fr); }
    .cs-ai__grid { grid-template-columns: 1fr; }
    .cs-lifecycle__steps { grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
    .cs-lifecycle__progress { display: none; }
    .cs-footer__inner { grid-template-columns: 1fr 1fr 1fr; }
}
@media (max-width: 900px) {
    :root { --section-y: 4.5rem; }
    .cs-nav__links, .cs-nav__signin, .cs-nav__actions .cs-btn { display: none; }
    .cs-nav__burger { display: inline-flex; }
    .cs-hero__inner { grid-template-columns: 1fr; text-align: center; }
    .cs-hero__metrics { margin-left: auto; margin-right: auto; }
    .cs-hero__lede { margin-left: auto; margin-right: auto; }
    .cs-hero__visual { display: none; }
    .cs-hero__ctas { justify-content: center; }
    .cs-pillars__grid { grid-template-columns: repeat(2, 1fr); }
    .cs-platform__diagram { aspect-ratio: 1; }
    .cs-platform__device { padding: 0.5rem 0.7rem; }
    .cs-platform__device-info { display: none; }
    .cs-platform__features { grid-template-columns: 1fr; }
    .cs-chrome__grid { grid-template-columns: 1fr; }
    .cs-chrome__overlook { grid-template-columns: 1fr; text-align: center; }
    .cs-chrome__overlook-steps { justify-content: center; flex-wrap: wrap; }
    .cs-pos__layout, .cs-privacy__layout, .cs-engagement__layout, .cs-roi__grid, .cs-contact__inner { grid-template-columns: 1fr; gap: 2.5rem; }
    .cs-engagement__visual, .cs-roi__result { position: static; }
    .cs-whitelabel__grid-content { grid-template-columns: 1fr; }
    .cs-cases__grid { grid-template-columns: 1fr; }
    .cs-audience__grid { grid-template-columns: 1fr; }
    .cs-compare__row { grid-template-columns: 1fr; gap: 0.5rem; padding: 1rem; }
    .cs-compare__row--head { display: none; }
    .cs-compare__metric::before { content: ""; display: block; height: 1px; background: var(--slate-200); margin-bottom: 0.5rem; }
    .cs-lifecycle__steps { grid-template-columns: repeat(2, 1fr); }
    .cs-lifecycle__approach { flex-direction: column; }
    .cs-footer__inner { grid-template-columns: 1fr 1fr; }
    .cs-privacy__badge-grid { grid-template-columns: repeat(2, 1fr); }
    .cs-trust__inner { gap: 1.5rem; }
    .cs-trust__divider { display: none; }
}
@media (max-width: 600px) {
    .cs-pillars__grid { grid-template-columns: 1fr; }
    .cs-pos__verticals { grid-template-columns: 1fr; }
    .cs-ecosystem__logos { grid-template-columns: repeat(2, 1fr); }
    .cs-footer__inner { grid-template-columns: 1fr; }
}

/* ================================================================
   PHASE 2 — Sub-page patterns
   ================================================================ */

/* ============ PAGE HERO (smaller than homepage hero) ============ */
.cs-page-hero { position: relative; padding: 5rem 0 4rem; overflow: hidden; background: linear-gradient(180deg, #fff 0%, var(--sky-50) 100%); }
.cs-page-hero::before { content: ""; position: absolute; top: -20%; right: -10%; width: 50%; height: 80%; background: radial-gradient(circle, rgba(14,165,233,0.15), transparent 60%); filter: blur(40px); pointer-events: none; }
.cs-page-hero__inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.cs-page-hero__inner--centered { grid-template-columns: 1fr; text-align: center; max-width: 760px; margin: 0 auto; }
.cs-page-hero h1 { font-family: var(--font-display); font-weight: 400; font-size: clamp(2.2rem, 4.6vw, 3.6rem); line-height: 1.05; letter-spacing: -0.025em; color: var(--slate-900); margin-bottom: 1.25rem; }
.cs-page-hero h1 em { font-style: italic; color: var(--sky-600); }
.cs-page-hero__lede { font-size: 1.15rem; line-height: 1.6; color: var(--slate-600); max-width: 560px; margin-bottom: 2rem; }
.cs-page-hero__inner--centered .cs-page-hero__lede { margin-left: auto; margin-right: auto; }
.cs-page-hero__ctas { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.cs-page-hero__inner--centered .cs-page-hero__ctas { justify-content: center; }

/* ============ BREADCRUMBS ============ */
.cs-crumbs { padding-top: 1.5rem; font-size: 0.85rem; color: var(--slate-500); }
.cs-crumbs a { color: var(--slate-500); transition: color 0.15s; }
.cs-crumbs a:hover { color: var(--sky-700); }
.cs-crumbs__sep { margin: 0 0.4rem; color: var(--slate-300); }
.cs-crumbs__current { color: var(--slate-700); font-weight: 500; }

/* ============ STANDARD SECTION WRAPPER ============ */
.cs-section { padding: var(--section-y) 0; }
.cs-section--soft { background: var(--bg-soft); }
.cs-section--white { background: #fff; }
.cs-section--dark { background: linear-gradient(180deg, var(--ink), var(--slate-900)); color: #fff; }
.cs-section--dark .cs-h2 { color: #fff; }
.cs-section--dark .cs-h2 em { color: var(--sky-300); }
.cs-section--dark .cs-section-lede { color: var(--slate-300); }

/* ============ FEATURE STACK (vertical list) ============ */
.cs-stack { display: flex; flex-direction: column; gap: 0.75rem; }
.cs-stack__item { display: grid; grid-template-columns: 56px 1fr; gap: 1.25rem; padding: 1.5rem; background: #fff; border: 1px solid var(--slate-200); border-radius: 12px; transition: border-color 0.2s, box-shadow 0.2s; }
.cs-stack__item:hover { border-color: var(--sky-300); box-shadow: var(--shadow-md); }
.cs-stack__icon { width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--sky-50), var(--sky-100)); color: var(--sky-700); border-radius: 10px; }
.cs-stack__item h4 { font-size: 1.05rem; font-weight: 700; color: var(--slate-900); margin-bottom: 0.3rem; }
.cs-stack__item p { font-size: 0.92rem; color: var(--slate-500); line-height: 1.55; margin: 0; }

/* ============ TWO-COLUMN ALTERNATING ============ */
.cs-twocol { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.cs-twocol--reverse > :first-child { order: 2; }
.cs-twocol__copy h2 { margin-bottom: 1rem; }
.cs-twocol__copy > p { font-size: 1.05rem; color: var(--slate-600); line-height: 1.65; margin-bottom: 1.5rem; }
.cs-twocol__copy ul { display: flex; flex-direction: column; gap: 0.75rem; margin-bottom: 1.5rem; }
.cs-twocol__copy ul li { display: flex; gap: 0.75rem; align-items: flex-start; font-size: 0.95rem; color: var(--slate-700); }
.cs-twocol__copy ul li::before { content: "✓"; color: var(--sky-600); font-weight: 700; flex-shrink: 0; width: 22px; height: 22px; background: var(--sky-50); border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: 0.75rem; }

/* ============ CODE WINDOW MOCKUP (reusable hero visual) ============ */
.cs-code { background: #0F172A; border-radius: 12px; box-shadow: var(--shadow-xl); overflow: hidden; font-family: ui-monospace, 'JetBrains Mono', monospace; font-size: 0.82rem; border: 1px solid #334155; }
.cs-code__head { background: #1E293B; padding: 12px 16px; display: flex; gap: 8px; align-items: center; border-bottom: 1px solid #334155; }
.cs-code__dot { width: 11px; height: 11px; border-radius: 50%; }
.cs-code__dot--r { background: #FB7185; } .cs-code__dot--y { background: #FBBF24; } .cs-code__dot--g { background: #34D399; }
.cs-code__file { margin-left: auto; font-size: 0.72rem; color: #64748B; font-family: ui-monospace, monospace; }
.cs-code__body { padding: 1.5rem; color: #E2E8F0; line-height: 1.7; }
.cs-code__body .cmt { color: #64748B; }
.cs-code__body .key { color: #ec4899; }
.cs-code__body .str { color: #38bdf8; }
.cs-code__body .num { color: #22c55e; }
.cs-code__body .fn  { color: #FBBF24; }

/* ============ FAQ ACCORDION ============ */
.cs-faq { display: flex; flex-direction: column; gap: 0.5rem; max-width: 800px; margin: 0 auto; }
.cs-faq__item { background: #fff; border: 1px solid var(--slate-200); border-radius: 10px; overflow: hidden; transition: border-color 0.15s; }
.cs-faq__item.is-open { border-color: var(--sky-300); }
.cs-faq__q { width: 100%; display: flex; justify-content: space-between; align-items: center; padding: 1.25rem 1.5rem; font-size: 1rem; font-weight: 600; color: var(--slate-900); text-align: left; }
.cs-faq__q svg { color: var(--slate-400); transition: transform 0.2s; }
.cs-faq__item.is-open .cs-faq__q svg { transform: rotate(45deg); color: var(--sky-600); }
.cs-faq__a { display: none; padding: 0 1.5rem 1.25rem; font-size: 0.95rem; color: var(--slate-600); line-height: 1.65; }
.cs-faq__item.is-open .cs-faq__a { display: block; }

/* ============ STAT CALLOUTS (3-up or 4-up) ============ */
.cs-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.cs-stats--3 { grid-template-columns: repeat(3, 1fr); }
.cs-stat { padding: 1.5rem; background: #fff; border: 1px solid var(--slate-200); border-radius: 12px; text-align: center; }
.cs-stat__num { font-family: var(--font-display); font-size: 2.2rem; font-weight: 400; color: var(--sky-600); line-height: 1; margin-bottom: 0.4rem; letter-spacing: -0.02em; }
.cs-stat__label { font-size: 0.85rem; color: var(--slate-500); font-weight: 500; }
.cs-section--dark .cs-stat { background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.1); }
.cs-section--dark .cs-stat__num { color: var(--sky-300); }
.cs-section--dark .cs-stat__label { color: var(--slate-400); }

/* ============ WORKFLOW STEPS (numbered horizontal) ============ */
.cs-workflow { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; position: relative; }
.cs-workflow__step { padding: 1.5rem; background: #fff; border: 1px solid var(--slate-200); border-radius: 12px; transition: transform 0.2s, box-shadow 0.2s; }
.cs-workflow__step:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--sky-300); }
.cs-workflow__num { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; background: var(--sky-500); color: #fff; border-radius: 50%; font-family: var(--font-display); font-size: 0.95rem; margin-bottom: 0.85rem; }
.cs-workflow__step h4 { font-size: 1rem; font-weight: 700; color: var(--slate-900); margin-bottom: 0.4rem; }
.cs-workflow__step p { font-size: 0.85rem; color: var(--slate-500); line-height: 1.5; margin: 0; }

/* ============ PRODUCT CARD HEADER (for chrome ext sub-pages) ============ */
.cs-product-hero { padding: 5rem 0 4rem; overflow: hidden; position: relative; }
.cs-product-hero--blue   { background: linear-gradient(135deg, #DBEAFE 0%, #fff 60%); }
.cs-product-hero--purple { background: linear-gradient(135deg, #EDE9FE 0%, #fff 60%); }
.cs-product-hero--teal   { background: linear-gradient(135deg, #CCFBF1 0%, #fff 60%); }
.cs-product-hero--sky    { background: linear-gradient(135deg, var(--sky-100) 0%, #fff 60%); }
.cs-product-hero__inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.cs-product-hero__brand { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.5rem; }
.cs-product-hero__icon { width: 64px; height: 64px; display: flex; align-items: center; justify-content: center; border-radius: 16px; color: #fff; }
.cs-product-hero__icon--blue   { background: linear-gradient(135deg, #2563EB, #1E40AF); }
.cs-product-hero__icon--purple { background: linear-gradient(135deg, #8B5CF6, #6D28D9); }
.cs-product-hero__icon--teal   { background: linear-gradient(135deg, #14B8A6, #0F766E); }
.cs-product-hero__icon--sky    { background: linear-gradient(135deg, var(--sky-500), var(--sky-700)); }
.cs-product-hero__brand-name { font-family: var(--font-display); font-size: 1.6rem; font-weight: 400; color: var(--slate-900); line-height: 1.1; }
.cs-product-hero__brand-tag { font-size: 0.85rem; color: var(--slate-500); margin-top: 0.2rem; display: block; }
.cs-product-hero h1 { font-family: var(--font-display); font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 400; line-height: 1.1; letter-spacing: -0.02em; color: var(--slate-900); margin-bottom: 1.25rem; }
.cs-product-hero h1 em { font-style: italic; color: var(--sky-600); }
.cs-product-hero p { font-size: 1.1rem; color: var(--slate-600); line-height: 1.6; margin-bottom: 2rem; }

/* Browser preview mockup */
.cs-browser { background: #fff; border-radius: 12px; box-shadow: var(--shadow-xl); border: 1px solid var(--slate-200); overflow: hidden; }
.cs-browser__head { background: var(--slate-50); padding: 10px 14px; display: flex; gap: 6px; align-items: center; border-bottom: 1px solid var(--slate-100); }
.cs-browser__url { margin-left: auto; font-size: 0.7rem; color: var(--slate-500); background: #fff; padding: 3px 10px; border-radius: 4px; border: 1px solid var(--slate-200); font-family: ui-monospace, monospace; }
.cs-browser__body { padding: 1.25rem; min-height: 320px; }

/* Extension popup mockup */
.cs-ext-popup { background: #fff; border-radius: 14px; box-shadow: var(--shadow-xl); border: 1px solid var(--slate-200); overflow: hidden; max-width: 360px; margin: 0 auto; }
.cs-ext-popup__head { padding: 1rem 1.25rem; border-bottom: 1px solid var(--slate-100); display: flex; align-items: center; gap: 0.75rem; }
.cs-ext-popup__head h5 { font-size: 0.95rem; font-weight: 700; color: var(--slate-900); }
.cs-ext-popup__head span { font-size: 0.75rem; color: var(--slate-500); }
.cs-ext-popup__body { padding: 1.25rem; }
.cs-ext-popup__row { display: flex; justify-content: space-between; align-items: center; padding: 0.75rem 0; border-bottom: 1px solid var(--slate-100); font-size: 0.88rem; }
.cs-ext-popup__row:last-child { border-bottom: none; }
.cs-ext-popup__row strong { color: var(--slate-900); }
.cs-ext-popup__row span { color: var(--slate-500); }
.cs-ext-popup__btn { width: 100%; margin-top: 0.75rem; padding: 0.75rem; background: var(--sky-500); color: #fff; border-radius: 8px; font-size: 0.88rem; font-weight: 600; }

/* ============ CTA BAND (between sections) ============ */
.cs-cta-band { padding: 5rem 0; background: linear-gradient(135deg, var(--slate-900), var(--ink)); color: #fff; position: relative; overflow: hidden; }
.cs-cta-band::before { content: ""; position: absolute; inset: 0; background: radial-gradient(ellipse at 70% 50%, rgba(14,165,233,0.18), transparent 60%); pointer-events: none; }
.cs-cta-band .cs-container { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }
.cs-cta-band h3 { font-family: var(--font-display); font-size: 2rem; font-weight: 400; color: #fff; line-height: 1.15; letter-spacing: -0.02em; }
.cs-cta-band h3 em { font-style: italic; color: var(--sky-300); }
.cs-cta-band p { font-size: 1rem; color: var(--slate-300); margin-top: 0.5rem; max-width: 520px; margin-bottom: 0; }

/* ============ INTEGRATION GRID (reusable) ============ */
.cs-integrations { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0.5rem; }
.cs-integrations__item { padding: 1rem 0.5rem; background: #fff; border: 1px solid var(--slate-200); border-radius: 8px; text-align: center; font-size: 0.78rem; font-weight: 600; color: var(--slate-700); transition: border-color 0.2s, color 0.2s; }
.cs-integrations__item:hover { border-color: var(--sky-300); color: var(--sky-700); }

/* ============ COMPARISON COLUMNS ============ */
.cs-compare-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.cs-compare-col { padding: 2rem; border-radius: 16px; }
.cs-compare-col--bad  { background: #FEF2F2; border: 1px solid #FECACA; }
.cs-compare-col--good { background: var(--sky-50); border: 1px solid var(--sky-300); }
.cs-compare-col h4 { font-size: 1.1rem; margin-bottom: 1.25rem; font-weight: 700; }
.cs-compare-col--bad h4 { color: #B91C1C; }
.cs-compare-col--good h4 { color: var(--sky-700); }
.cs-compare-col ul { display: flex; flex-direction: column; gap: 0.75rem; }
.cs-compare-col ul li { display: flex; gap: 0.6rem; font-size: 0.92rem; line-height: 1.5; }
.cs-compare-col--bad li::before { content: "✕"; color: #DC2626; font-weight: 700; flex-shrink: 0; }
.cs-compare-col--good li::before { content: "✓"; color: var(--sky-600); font-weight: 700; flex-shrink: 0; }

/* ============ MOBILE RESPONSIVE for sub-page patterns ============ */
@media (max-width: 900px) {
    .cs-page-hero__inner, .cs-product-hero__inner, .cs-twocol { grid-template-columns: 1fr; gap: 2.5rem; }
    .cs-twocol--reverse > :first-child { order: 0; }
    .cs-stats, .cs-stats--3 { grid-template-columns: repeat(2, 1fr); }
    .cs-integrations { grid-template-columns: repeat(3, 1fr); }
    .cs-compare-cols { grid-template-columns: 1fr; }
    .cs-cta-band .cs-container { flex-direction: column; text-align: center; align-items: stretch; }
}
@media (max-width: 600px) {
    .cs-stats, .cs-stats--3 { grid-template-columns: 1fr; }
    .cs-integrations { grid-template-columns: repeat(2, 1fr); }
}