/* ============================================================
   ActProof.io — Premium Dark Landing Page (Dual-Layer)
   ============================================================ */

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-card: rgba(20, 20, 30, 0.6);
    --bg-card-hover: rgba(30, 30, 45, 0.7);
    --border: rgba(99, 102, 241, 0.15);
    --border-hover: rgba(99, 102, 241, 0.3);

    --text-primary: #f0f0f5;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;

    --accent-indigo: #6366f1;
    --accent-cyan: #06b6d4;
    --accent-violet: #8b5cf6;
    --accent-emerald: #10b981;
    --accent-rose: #f43f5e;
    --accent-amber: #f59e0b;

    --gradient-primary: linear-gradient(135deg, #6366f1, #06b6d4);
    --gradient-violet: linear-gradient(135deg, #8b5cf6, #6366f1);
    --gradient-emerald: linear-gradient(135deg, #10b981, #06b6d4);
    --gradient-rose: linear-gradient(135deg, #f43f5e, #8b5cf6);

    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ─── Animated Background ─── */

.bg-grid {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: 0;
    pointer-events: none;
}

.bg-glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.3;
    z-index: 0;
    pointer-events: none;
    animation: float 20s ease-in-out infinite;
}

.bg-glow--1 {
    width: 600px;
    height: 600px;
    background: var(--accent-indigo);
    top: -200px;
    right: -100px;
}

.bg-glow--2 {
    width: 500px;
    height: 500px;
    background: var(--accent-cyan);
    bottom: -200px;
    left: -100px;
    animation-delay: -10s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    33% {
        transform: translate(30px, -30px) scale(1.05);
    }

    66% {
        transform: translate(-20px, 20px) scale(0.95);
    }
}

/* ─── Container ─── */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ─── Navigation ─── */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all 0.3s ease;
}

.nav.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 10px 0;
}

.nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
}

.nav__logo-icon {
    width: 36px;
    height: 36px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 18px;
    color: white;
}

.nav__logo-text {
    font-weight: 800;
    font-size: 20px;
    letter-spacing: -0.02em;
}

.nav__links {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav__link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav__link:hover {
    color: var(--text-primary);
}

.nav__link--cta {
    background: var(--gradient-primary);
    color: white;
    padding: 8px 20px;
    border-radius: 999px;
    font-weight: 600;
}

.nav__link--cta:hover {
    color: white;
    opacity: 0.9;
}

.nav__burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav__burger span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    padding: 24px;
    flex-direction: column;
    gap: 16px;
    z-index: 999;
    border-bottom: 1px solid var(--border);
}

.mobile-menu.open {
    display: flex;
}

.mobile-menu__link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    padding: 8px 0;
}

.mobile-menu__link--cta {
    background: var(--gradient-primary);
    color: white;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    text-align: center;
    font-weight: 600;
}

/* ─── Language Switcher ─── */

.lang-switch {
    display: flex;
    align-items: center;
    gap: 2px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 3px;
    margin-left: 8px;
}

.lang-switch__btn {
    background: transparent;
    color: var(--text-muted);
    border: none;
    padding: 5px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    font-family: var(--font);
    letter-spacing: 0.04em;
    cursor: pointer;
    transition: all 0.25s ease;
    line-height: 1;
}

.lang-switch__btn:hover {
    color: var(--text-primary);
}

.lang-switch__btn.active {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.nav__right-mobile {
    display: none;
    align-items: center;
    gap: 12px;
}

.lang-switch--mobile {
    margin-left: 0;
}

/* ─── Hero ─── */

.hero {
    position: relative;
    z-index: 1;
    padding: 160px 0 100px;
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero__inner {
    text-align: center;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    color: var(--accent-indigo);
    padding: 6px 16px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 32px;
}

.hero__title {
    font-size: clamp(2.5rem, 7vw, 4.5rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero__actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ─── Buttons ─── */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.25s ease;
    cursor: pointer;
    border: none;
    font-family: var(--font);
}

.btn--primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.4);
}

.btn--ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.btn--ghost:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
    background: rgba(99, 102, 241, 0.05);
}

.btn--lg {
    padding: 16px 36px;
    font-size: 16px;
}

/* ─── Sections ─── */

.section {
    position: relative;
    z-index: 1;
    padding: 120px 0;
}

.section--dark {
    background: var(--bg-secondary);
}

.section--cta {
    padding: 100px 0 120px;
}

.section__header {
    text-align: center;
    margin-bottom: 64px;
}

.section__badge {
    display: inline-block;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    color: var(--accent-indigo);
    padding: 4px 14px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section__badge--blue {
    background: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.25);
    color: #60a5fa;
}

.section__badge--green {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.25);
    color: var(--accent-emerald);
}

.section__title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
}

.section__desc {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 540px;
    margin: 0 auto;
}

/* ─── What is ActProof (Two-Col) ─── */

.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.intro-block {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    transition: all 0.35s ease;
    position: relative;
    overflow: hidden;
}

.intro-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    opacity: 1;
}

.intro-block--framework::before {
    background: linear-gradient(90deg, #3b82f6, #6366f1);
}

.intro-block--system::before {
    background: linear-gradient(90deg, #10b981, #06b6d4);
}

.intro-block:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
}

.intro-block__icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.intro-block__label {
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.intro-block__text {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
}

/* ─── Metric Cards ─── */

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.metric-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px;
    transition: all 0.35s ease;
}

.metric-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.metric-card__symbol {
    font-family: var(--font-mono);
    font-size: 1.6rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    line-height: 1;
}

.metric-card__title {
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 10px;
}

.metric-card__desc {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 16px;
}

.metric-card__impl {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: baseline;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.metric-card__impl-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.metric-card__impl-value {
    font-size: 12px;
    color: var(--accent-cyan);
    font-family: var(--font-mono);
    font-weight: 500;
}

/* ─── Mapping Table ─── */

.mapping-table-wrap {
    overflow-x: auto;
}

.mapping-table {
    width: 100%;
    border-collapse: collapse;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.mapping-table thead {
    background: rgba(99, 102, 241, 0.08);
}

.mapping-table th {
    padding: 16px 24px;
    text-align: left;
    font-size: 13px;
    font-weight: 700;
    color: var(--accent-indigo);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border-bottom: 1px solid var(--border);
}

.mapping-table td {
    padding: 14px 24px;
    font-size: 14px;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(99, 102, 241, 0.08);
}

.mapping-table tr:hover td {
    background: rgba(99, 102, 241, 0.04);
    color: var(--text-primary);
}

.mapping-table code {
    font-family: var(--font-mono);
    background: rgba(6, 182, 212, 0.1);
    color: var(--accent-cyan);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 13px;
}

/* ─── System Cards ─── */

.systems-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.system-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all 0.35s ease;
    overflow: hidden;
    position: relative;
}

.system-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.system-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.system-card:hover::before {
    opacity: 1;
}

.system-card--featured {
    grid-column: span 3;
    border-color: rgba(99, 102, 241, 0.25);
}

.system-card--featured::before {
    opacity: 1;
}

.system-card__header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.system-card__icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.system-card__icon--ai {
    background: rgba(139, 92, 246, 0.12);
    color: var(--accent-violet);
}

.system-card__icon--os {
    background: rgba(99, 102, 241, 0.12);
    color: var(--accent-indigo);
}

.system-card__icon--udm {
    background: rgba(6, 182, 212, 0.12);
    color: var(--accent-cyan);
}

.system-card__icon--workforce {
    background: rgba(16, 185, 129, 0.12);
    color: var(--accent-emerald);
}

.system-card__icon--monitor {
    background: rgba(245, 158, 11, 0.12);
    color: var(--accent-amber);
}

.system-card__icon--telemetry {
    background: rgba(244, 63, 94, 0.12);
    color: var(--accent-rose);
}

.system-card__title {
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.system-card__subtitle {
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-cyan);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.system-card__desc {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 16px;
}

.system-card__features {
    list-style: none;
    margin-bottom: 16px;
}

.system-card__features li {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.5;
    padding: 3px 0;
}

.system-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
}

.system-card__tags li {
    background: rgba(99, 102, 241, 0.08);
    color: var(--accent-indigo);
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
}

/* ─── CCC Pipeline ─── */

.system-card__pipeline {
    margin-bottom: 16px;
}

.system-card__pipe-label {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    display: block;
    margin-bottom: 8px;
}

.pipeline-flow {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}

.pipe-node {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid rgba(99, 102, 241, 0.15);
    padding: 4px 10px;
    border-radius: 6px;
}

.pipe-node--hl {
    background: rgba(139, 92, 246, 0.15);
    border-color: rgba(139, 92, 246, 0.3);
    color: var(--accent-violet);
}

.pipe-arrow {
    color: var(--text-muted);
    font-size: 12px;
    font-family: var(--font-mono);
}

/* ─── Case Study ─── */

.section__badge--amber {
    background: rgba(245, 158, 11, 0.1);
    border-color: rgba(245, 158, 11, 0.25);
    color: var(--accent-amber);
}

.case-study {
    max-width: 760px;
    margin: 0 auto;
}

.case-part {
    position: relative;
    padding: 32px 0 32px 56px;
    border-bottom: 1px solid rgba(99, 102, 241, 0.08);
}

.case-part:last-child {
    border-bottom: none;
}

.case-part__number {
    position: absolute;
    left: 0;
    top: 32px;
    width: 36px;
    height: 36px;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.25);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 800;
    color: var(--accent-amber);
}

.case-part__title {
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.case-part__text {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 12px;
}

.case-part__subtext {
    color: var(--accent-cyan);
    font-size: 14px;
    line-height: 1.7;
    font-style: italic;
    padding: 12px 16px;
    border-left: 3px solid rgba(6, 182, 212, 0.3);
    background: rgba(6, 182, 212, 0.04);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin-top: 8px;
}

.case-part--conclusion {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px 36px 36px 72px;
    margin-top: 24px;
    position: relative;
    overflow: hidden;
}

.case-part--conclusion::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

.case-part--conclusion .case-part__number {
    left: 24px;
    top: 36px;
    background: rgba(99, 102, 241, 0.12);
    border-color: rgba(99, 102, 241, 0.25);
    color: var(--accent-indigo);
}

.case-chart {
    max-width: 640px;
    margin: 32px auto;
    text-align: center;
}

.case-chart__img {
    width: 100%;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.case-chart__caption {
    color: var(--text-muted);
    font-size: 13px;
    margin-top: 12px;
    font-style: italic;
}

.case-cta {
    text-align: center;
    margin-top: 48px;
}

/* ─── Example Deployment Timeline ─── */

.deploy-timeline {
    max-width: 720px;
    margin: 0 auto;
    position: relative;
    padding-left: 48px;
}

.deploy-timeline::before {
    content: '';
    position: absolute;
    left: 19px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--accent-indigo), var(--accent-cyan), var(--accent-emerald), var(--accent-amber), var(--accent-rose));
    border-radius: 2px;
}

.deploy-step {
    position: relative;
    margin-bottom: 36px;
}

.deploy-step:last-child {
    margin-bottom: 0;
}

.deploy-step__marker {
    position: absolute;
    left: -48px;
    top: 2px;
    width: 40px;
    height: 40px;
    background: var(--bg-secondary);
    border: 2px solid var(--accent-indigo);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 800;
    color: var(--accent-indigo);
    z-index: 1;
}

.deploy-step__marker--warn {
    border-color: var(--accent-amber);
    color: var(--accent-amber);
}

.deploy-step__marker--critical {
    border-color: var(--accent-emerald);
    color: var(--accent-emerald);
    box-shadow: 0 0 16px rgba(16, 185, 129, 0.3);
}

.deploy-step__content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 24px;
}

.deploy-step__title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.deploy-step__desc {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

/* ─── Integration Grid ─── */

.integ-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 32px;
}

.integ-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 24px;
    text-align: center;
    transition: all 0.25s ease;
}

.integ-card:hover {
    border-color: var(--border-hover);
}

.integ-card__check {
    display: block;
    font-size: 1.5rem;
    font-weight: 900;
    margin-bottom: 8px;
    line-height: 1;
}

.integ-card--yes .integ-card__check {
    color: var(--accent-emerald);
}

.integ-card--no .integ-card__check {
    color: var(--accent-rose);
}

.integ-card--note .integ-card__check {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    color: var(--accent-cyan);
}

.integ-card__label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
}

.integ-note {
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
    font-style: italic;
}

/* ─── Audience Tabs ─── */

.audience-tabs__nav {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-bottom: 40px;
}

.audience-tab-btn {
    background: rgba(99, 102, 241, 0.06);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 10px 24px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font);
    cursor: pointer;
    transition: all 0.25s ease;
}

.audience-tab-btn:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

.audience-tab-btn.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
}

.audience-tab-content {
    display: none;
    max-width: 600px;
    margin: 0 auto;
}

.audience-tab-content.active {
    display: block;
}

.audience-list {
    list-style: none;
}

.audience-list li {
    position: relative;
    padding: 12px 0 12px 28px;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.6;
    border-bottom: 1px solid rgba(99, 102, 241, 0.06);
}

.audience-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-indigo);
    font-weight: 700;
}

/* ─── CTA Box ─── */

.cta-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 80px 48px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-box::after {
    content: '';
    position: absolute;
    top: -1px;
    left: 30%;
    right: 30%;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 0 0 2px 2px;
}

.cta-box__title {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
    line-height: 1.2;
}

.cta-box__desc {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 36px;
}

.cta-box__actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ─── Footer ─── */

.footer {
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--border);
    padding: 48px 0;
}

.footer__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 24px;
}

.footer__brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer__links {
    display: flex;
    gap: 24px;
}

.footer__links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s ease;
}

.footer__links a:hover {
    color: var(--text-primary);
}

.footer__link--research {
    color: var(--accent-indigo) !important;
    font-weight: 600;
}

.footer__copy {
    color: var(--text-muted);
    font-size: 13px;
    width: 100%;
    text-align: center;
    margin-top: 16px;
}

/* ─── Reveal Animations ─── */

[data-reveal] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-reveal].revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ─── Responsive ─── */

@media (max-width: 900px) {
    .nav__links {
        display: none;
    }

    .nav__right-mobile {
        display: flex;
    }

    .nav__burger {
        display: flex;
    }

    .two-col,
    .metrics-grid,
    .systems-grid {
        grid-template-columns: 1fr;
    }

    .system-card--featured {
        grid-column: span 1;
    }

    .integ-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero {
        padding: 120px 0 80px;
        min-height: auto;
    }

    .section {
        padding: 80px 0;
    }

    .cta-box {
        padding: 48px 24px;
    }

    .footer__inner {
        flex-direction: column;
        text-align: center;
    }

    .footer__links {
        flex-wrap: wrap;
        justify-content: center;
    }

    .deploy-timeline {
        padding-left: 40px;
    }

    .deploy-step__marker {
        left: -40px;
        width: 32px;
        height: 32px;
        font-size: 12px;
    }

    .deploy-timeline::before {
        left: 15px;
    }

    .pipeline-flow {
        gap: 2px;
    }

    .pipe-node {
        padding: 3px 6px;
        font-size: 10px;
    }

    .audience-tabs__nav {
        flex-wrap: wrap;
    }
}

@media (max-width: 600px) {
    .integ-grid {
        grid-template-columns: 1fr 1fr;
    }

    .btn--lg {
        padding: 14px 24px;
        font-size: 14px;
    }
}