/* ═══════════════════════════════════════════════════════════════════
   90mod — Design System
   The managed business operating system.
   Calm, warm, intentional.
   ═══════════════════════════════════════════════════════════════════ */

/* ── Tokens ────────────────────────────────────────────────────────── */
:root {
    --bg:              #f6f4f1;
    --bg-alt:          #edeae5;
    --surface:         #ffffff;
    --surface-hover:   #faf8f6;
    --border:          #e2ddd6;
    --border-subtle:   #ebe7e1;
    --border-focus:    #c8c1b8;

    --text:            #1a1a2e;
    --text-secondary:  #4a4a5a;
    --text-muted:      #7a7a8a;
    --text-faint:      #a0a0aa;

    --accent:          #1a1a2e;
    --accent-muted:    #2d2d44;
    --accent-soft:     #3d3d56;

    --success:         #2d9a5a;
    --error:           #c44b4b;
    --warning:         #c48b3a;

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

    --space-xs:        0.25rem;
    --space-sm:        0.5rem;
    --space-md:        1rem;
    --space-lg:        1.5rem;
    --space-xl:        2rem;
    --space-2xl:       3rem;
    --space-3xl:       4rem;
    --space-4xl:       6rem;
    --space-5xl:       8rem;

    --container:       1200px;
    --container-narrow: 800px;

    --radius-sm:       6px;
    --radius-md:       8px;
    --radius-lg:       12px;
    --radius-xl:       16px;

    --ease:            cubic-bezier(0.16, 1, 0.3, 1);
    --duration:        200ms;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    scroll-behavior: smooth;
}

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

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
strong { font-weight: 600; color: var(--text); }

/* ── Container ─────────────────────────────────────────────────────── */
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

/* ── Navigation ────────────────────────────────────────────────────── */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    transition: background var(--duration) var(--ease);
}

.nav-inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--space-xl);
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand { display: flex; align-items: center; gap: var(--space-sm); }
.nav-icon { width: 28px; height: 28px; object-fit: contain; border-radius: 6px; flex-shrink: 0; }
.footer-icon { width: 26px; height: 26px; object-fit: contain; border-radius: 5px; flex-shrink: 0; }
.nav-logo { font-size: 1.25rem; font-weight: 700; letter-spacing: -0.04em; color: #ffffff; }
.nav-logo-mod { font-weight: 300; color: rgba(255,255,255,0.5); }

.nav-links { display: flex; align-items: center; gap: var(--space-2xl); }
.nav-link {
    font-size: 0.8125rem; font-weight: 500;
    color: rgba(255,255,255,0.6);
    transition: color var(--duration);
    letter-spacing: 0.01em;
    position: relative;
}
.nav-link:hover, .nav-link.active { color: #ffffff; }
.nav-link::after {
    content: ''; position: absolute; bottom: -2px; left: 0;
    width: 0; height: 1.5px; background: var(--accent);
    transition: width 0.3s var(--ease);
}
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.nav-actions { display: flex; align-items: center; gap: var(--space-md); }
.nav-login {
    font-size: 0.8125rem; font-weight: 500;
    color: rgba(255,255,255,0.7);
    padding: 0.5rem 1rem;
    transition: color var(--duration) var(--ease);
}
.nav-login:hover { color: #ffffff; }
.nav-cta {
    font-size: 0.8125rem; font-weight: 600;
    color: #f6f4f1; background: var(--accent);
    padding: 0.5rem 1.25rem; border-radius: var(--radius-md);
    transition: all var(--duration) var(--ease);
}
.nav-cta:hover { opacity: 0.9; transform: translateY(-1px); }

.nav-toggle {
    display: none; flex-direction: column; gap: 5px;
    background: none; border: none; cursor: pointer; padding: 4px;
}
.nav-toggle span { display: block; width: 20px; height: 1.5px; background: rgba(255,255,255,0.8); transition: transform var(--duration); }

/* Mobile Menu */
.mobile-menu {
    display: none; position: fixed; top: 64px; left: 0; right: 0; bottom: 0;
    z-index: 99; background: #0a0a0a;
    opacity: 0; pointer-events: none;
    transition: opacity var(--duration) var(--ease);
}
.mobile-menu.active { opacity: 1; pointer-events: all; }
.mobile-menu-inner { display: flex; flex-direction: column; padding: var(--space-xl); gap: var(--space-xs); }
.mobile-link {
    font-size: 1.5rem; font-weight: 600; padding: var(--space-md) 0;
    color: rgba(255,255,255,0.6); border-bottom: 1px solid rgba(255,255,255,0.08);
    transition: color var(--duration);
}
.mobile-link:hover { color: #ffffff; }
.mobile-cta {
    display: inline-block; text-align: center; margin-top: var(--space-lg);
    font-size: 1rem; font-weight: 600; color: #f6f4f1; background: var(--accent);
    padding: 1rem; border-radius: var(--radius-md);
}

/* ── Buttons ───────────────────────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    gap: var(--space-sm); font-family: var(--font-sans);
    font-size: 0.875rem; font-weight: 600;
    padding: 0.75rem 1.75rem; border-radius: var(--radius-md);
    border: none; cursor: pointer;
    transition: all var(--duration) var(--ease);
    letter-spacing: 0.01em; white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #f6f4f1; }
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(26, 26, 46, 0.15); }
.btn-ghost { background: transparent; color: var(--text-secondary); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--border-focus); color: var(--text); }
.btn-lg { padding: 1rem 2.25rem; font-size: 1rem; }
.btn-full { width: 100%; }
.btn:active { transform: translateY(0) scale(0.98); }

/* ── Sections ──────────────────────────────────────────────────────── */
.section { padding: var(--space-5xl) 0; }
.section-dark { background: var(--bg-alt); }
.section-label {
    font-family: var(--font-mono); font-size: 0.6875rem;
    font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase;
    color: var(--text-muted); margin-bottom: var(--space-lg);
}
.section-title {
    font-size: clamp(1.75rem, 3.5vw, 2.75rem);
    font-weight: 800; line-height: 1.1; letter-spacing: -0.03em;
    color: var(--text); margin-bottom: var(--space-lg);
}
.section-subtitle {
    font-size: 1.0625rem; color: var(--text-secondary);
    max-width: 640px; line-height: 1.7; margin-bottom: var(--space-3xl);
}

/* ── Hero ──────────────────────────────────────────────────────────── */
.hero {
    padding-top: calc(64px + var(--space-4xl));
    padding-bottom: var(--space-4xl);
    border-bottom: 1px solid var(--border-subtle);
    overflow: hidden;
}

.hero-split {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-3xl);
    align-items: center;
}

.hero-badge {
    display: inline-flex; align-items: center; gap: var(--space-sm);
    font-size: 0.75rem; font-weight: 600; letter-spacing: 0.06em;
    text-transform: uppercase; color: var(--text-muted);
    padding: 0.375rem 1rem; background: var(--surface);
    border: 1px solid var(--border); border-radius: 100px;
    margin-bottom: var(--space-xl);
}
.badge-dot {
    width: 6px; height: 6px; background: var(--success);
    border-radius: 50%; animation: pulse 3s ease infinite;
}

.hero-title {
    font-size: clamp(2.25rem, 5vw, 4rem);
    font-weight: 800; line-height: 1.05;
    letter-spacing: -0.04em; color: var(--text);
    margin-bottom: var(--space-xl);
}
.hero-title-accent { color: var(--text-muted); }

.hero-subtitle {
    font-size: 1.0625rem; color: var(--text-secondary);
    line-height: 1.7; max-width: 540px;
    margin-bottom: var(--space-2xl);
}

.hero-actions { display: flex; gap: var(--space-md); flex-wrap: wrap; margin-bottom: var(--space-3xl); }

.hero-stats { display: flex; align-items: center; gap: var(--space-2xl); }
.hero-stat-value {
    font-size: 2rem; font-weight: 800; letter-spacing: -0.04em;
    color: var(--text); line-height: 1; margin-bottom: var(--space-xs);
    font-variant-numeric: tabular-nums;
}
.hero-stat-label { font-size: 0.75rem; color: var(--text-muted); }
.hero-stat-divider { width: 1px; height: 32px; background: var(--border); }

.hero-visual {
    position: relative;
}

/* ── App Mockup Frame ──────────────────────────────────────────────── */
.app-mockup-frame {
    perspective: 1200px;
}

.app-mockup {
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: 0 20px 60px rgba(26, 26, 46, 0.1), 0 8px 24px rgba(26, 26, 46, 0.06);
    background: #1a1a2e;
    transform: rotateY(-2deg) rotateX(1deg);
    transition: transform 0.5s var(--ease);
}

.app-mockup:hover {
    transform: rotateY(0) rotateX(0);
}

.app-mockup-chrome {
    display: flex; align-items: center; gap: 6px;
    padding: 10px 14px; background: #141422;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.app-mockup-chrome .dot { width: 8px; height: 8px; border-radius: 50%; }
.app-mockup-chrome .dot.red { background: #ff5f57; }
.app-mockup-chrome .dot.yellow { background: #febc2e; }
.app-mockup-chrome .dot.green { background: #28c840; }
.chrome-url {
    margin-left: 12px; font-size: 0.65rem; color: rgba(255,255,255,0.3);
    font-family: var(--font-mono); letter-spacing: 0.02em;
}

.app-mockup-body { display: flex; min-height: 320px; }

/* Sidebar */
.app-mock-sidebar {
    width: 180px; background: #12121f; padding: 12px;
    border-right: 1px solid rgba(255,255,255,0.06);
    display: flex; flex-direction: column; flex-shrink: 0;
}
.app-mock-sidebar-sm { width: 140px; }
.app-mock-sidebar-brand {
    display: flex; align-items: center; gap: 6px;
    font-size: 0.75rem; font-weight: 700; color: #fff;
    padding: 4px 6px; margin-bottom: 16px;
}
.app-mock-sidebar-label {
    font-size: 0.55rem; text-transform: uppercase; letter-spacing: 0.1em;
    color: rgba(255,255,255,0.25); padding: 4px 6px; margin-top: 8px; margin-bottom: 4px;
}
.app-mock-nav-item {
    font-size: 0.65rem; color: rgba(255,255,255,0.45);
    padding: 6px 8px; border-radius: 4px; display: flex;
    align-items: center; gap: 6px; margin-bottom: 2px;
}
.app-mock-nav-item svg { width: 12px; height: 12px; }
.app-mock-nav-item.active {
    background: rgba(255,255,255,0.06); color: rgba(255,255,255,0.9);
}
.app-mock-sidebar-footer {
    margin-top: auto; padding: 8px 6px; display: flex;
    align-items: center; gap: 6px; border-top: 1px solid rgba(255,255,255,0.06);
}
.app-mock-avatar {
    width: 24px; height: 24px; border-radius: 50%; font-size: 0.55rem;
    font-weight: 700; display: flex; align-items: center; justify-content: center;
    background: rgba(255,255,255,0.1); color: rgba(255,255,255,0.7);
}
.app-mock-user-name { font-size: 0.6rem; color: rgba(255,255,255,0.7); font-weight: 600; }
.app-mock-user-role { font-size: 0.5rem; color: rgba(255,255,255,0.3); }

/* Content area */
.app-mock-content {
    flex: 1; background: #18182a; padding: 16px; overflow: hidden;
}
.app-mock-page-header {
    display: flex; justify-content: space-between; align-items: flex-start;
    margin-bottom: 16px;
}
.app-mock-page-header h3 { font-size: 0.85rem; font-weight: 700; color: #fff; }
.app-mock-page-header p { font-size: 0.6rem; color: rgba(255,255,255,0.35); margin-top: 2px; }
.app-mock-header-btn {
    font-size: 0.6rem; padding: 4px 10px; border-radius: 4px;
    background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.6);
    border: 1px solid rgba(255,255,255,0.1);
}

/* Stats */
.app-mock-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-bottom: 14px; }
.app-mock-stat {
    background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.06);
    border-radius: 6px; padding: 10px;
}
.app-mock-stat-label { font-size: 0.5rem; color: rgba(255,255,255,0.35); margin-bottom: 4px; }
.app-mock-stat-value { font-size: 0.9rem; font-weight: 700; }
.app-mock-stat-value.accent { color: #d4b896; }
.app-mock-stat-value.green { color: #2d9a5a; }
.app-mock-stat-value.blue { color: #5b8def; }
.app-mock-stat-value.warn { color: #c48b3a; }

/* Widgets */
.app-mock-widgets { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.app-mock-widget {
    background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.06);
    border-radius: 6px; padding: 12px;
}
.app-mock-widget-title { font-size: 0.6rem; color: rgba(255,255,255,0.4); margin-bottom: 10px; font-weight: 600; }

/* Bar chart */
.app-mock-bars { display: flex; gap: 6px; align-items: flex-end; height: 70px; }
.bar-col { flex: 1; display: flex; flex-direction: column; align-items: center; height: 100%; justify-content: flex-end; }
.bar { width: 100%; background: linear-gradient(to top, rgba(45,154,90,0.6), rgba(45,154,90,0.2)); border-radius: 2px 2px 0 0; height: var(--bar-h); }
.bar-label { font-size: 0.45rem; color: rgba(255,255,255,0.25); margin-top: 4px; }

/* Activity feed */
.app-mock-activity { display: flex; flex-direction: column; gap: 8px; }
.app-mock-activity-row {
    display: flex; align-items: center; gap: 6px;
    font-size: 0.55rem; color: rgba(255,255,255,0.5);
}
.activity-dot { width: 5px; height: 5px; border-radius: 50%; flex-shrink: 0; }
.activity-dot.green { background: #2d9a5a; }
.activity-dot.blue { background: #5b8def; }
.activity-dot.accent { background: #d4b896; }

/* ── Mock Table ────────────────────────────────────────────────────── */
.app-mock-table { display: flex; flex-direction: column; }
.mock-table-head {
    display: flex; padding: 6px 0; border-bottom: 1px solid rgba(255,255,255,0.08);
    font-size: 0.5rem; text-transform: uppercase; letter-spacing: 0.06em;
    color: rgba(255,255,255,0.3); font-weight: 600;
}
.mock-table-row {
    display: flex; padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,0.04);
    font-size: 0.6rem; color: rgba(255,255,255,0.6); align-items: center;
}
.col-name { flex: 1.5; display: flex; align-items: center; gap: 6px; }
.col-company { flex: 1; }
.col-status { flex: 0.7; }
.mini-avatar {
    width: 20px; height: 20px; border-radius: 50%; font-size: 0.45rem;
    font-weight: 700; display: inline-flex; align-items: center; justify-content: center;
    background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.5); flex-shrink: 0;
}
.status-pill {
    font-size: 0.45rem; font-weight: 600; padding: 2px 6px;
    border-radius: 100px; text-transform: uppercase; letter-spacing: 0.05em;
}
.status-pill.active { background: rgba(45,154,90,0.15); color: #2d9a5a; }
.status-pill.lead { background: rgba(91,141,239,0.15); color: #5b8def; }

/* ── Mock Invoice ──────────────────────────────────────────────────── */
.app-mock-invoice { display: flex; flex-direction: column; gap: 0; }
.invoice-line {
    display: flex; align-items: center; padding: 8px 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    font-size: 0.6rem; color: rgba(255,255,255,0.55);
}
.inv-desc { flex: 1; }
.inv-qty { width: 40px; text-align: center; color: rgba(255,255,255,0.35); }
.inv-price { width: 80px; text-align: right; font-weight: 600; color: rgba(255,255,255,0.7); }
.invoice-total {
    display: flex; justify-content: space-between; padding: 10px 0;
    font-size: 0.7rem; font-weight: 700; color: #fff;
    border-top: 1px solid rgba(255,255,255,0.12); margin-top: 4px;
}
.app-mock-status-tag {
    font-size: 0.55rem; font-weight: 700; padding: 3px 10px;
    border-radius: 100px; text-transform: uppercase; letter-spacing: 0.06em;
}
.app-mock-status-tag.paid { background: rgba(45,154,90,0.15); color: #2d9a5a; }

/* ── Mock Kanban ───────────────────────────────────────────────────── */
.app-mock-kanban { display: flex; gap: 8px; flex: 1; }
.kanban-col {
    flex: 1; background: rgba(255,255,255,0.02); border-radius: 6px;
    border: 1px solid rgba(255,255,255,0.04); padding: 8px;
}
.kanban-col-head {
    font-size: 0.55rem; font-weight: 600; color: rgba(255,255,255,0.4);
    margin-bottom: 8px; display: flex; justify-content: space-between; align-items: center;
}
.kanban-count {
    font-size: 0.5rem; background: rgba(255,255,255,0.06); padding: 1px 5px;
    border-radius: 100px; color: rgba(255,255,255,0.3);
}
.kanban-card {
    background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.06);
    border-radius: 4px; padding: 8px; margin-bottom: 6px;
}
.kanban-card.active { border-color: rgba(91,141,239,0.3); }
.kanban-card.done { opacity: 0.5; }
.kanban-card-title { font-size: 0.55rem; font-weight: 600; color: rgba(255,255,255,0.7); margin-bottom: 2px; }
.kanban-card-meta { font-size: 0.45rem; color: rgba(255,255,255,0.3); }

/* ── Mock AI Chat ──────────────────────────────────────────────────── */
.app-mock-chat-content { display: flex; flex-direction: column; padding: 0; }
.app-mock-chat-header {
    padding: 10px 16px; border-bottom: 1px solid rgba(255,255,255,0.06);
}
.app-mock-chat-model {
    font-size: 0.6rem; color: rgba(255,255,255,0.4);
    display: flex; align-items: center; gap: 6px;
}
.model-dot { width: 5px; height: 5px; background: #2d9a5a; border-radius: 50%; }
.app-mock-chat-messages { flex: 1; padding: 14px 16px; display: flex; flex-direction: column; gap: 10px; overflow: hidden; }
.mock-msg {
    max-width: 85%; padding: 8px 12px; border-radius: 8px;
    font-size: 0.6rem; line-height: 1.5;
}
.mock-msg.bot {
    background: rgba(255,255,255,0.05); color: rgba(255,255,255,0.6);
    align-self: flex-start; border: 1px solid rgba(255,255,255,0.06);
}
.mock-msg.user {
    background: rgba(45,154,90,0.12); color: rgba(255,255,255,0.8);
    align-self: flex-end; border: 1px solid rgba(45,154,90,0.2);
}
.app-mock-chat-input {
    padding: 10px 14px; border-top: 1px solid rgba(255,255,255,0.06);
    display: flex; gap: 8px;
}
.mock-input-field {
    flex: 1; font-size: 0.6rem; color: rgba(255,255,255,0.2);
    background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.06);
    border-radius: 4px; padding: 6px 10px;
}
.mock-send-btn {
    font-size: 0.55rem; font-weight: 600; color: rgba(255,255,255,0.4);
    background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08);
    border-radius: 4px; padding: 6px 12px;
}

/* ── Feature Showcase ──────────────────────────────────────────────── */
.feature-showcase { display: flex; flex-direction: column; gap: var(--space-5xl); margin-top: var(--space-3xl); }
.feature-row {
    display: grid; grid-template-columns: 1fr 1.3fr;
    gap: var(--space-3xl); align-items: center;
}
.feature-row.reverse { grid-template-columns: 1.3fr 1fr; }
.feature-row.reverse .feature-visual { order: -1; }

.feature-badge {
    display: inline-block; font-size: 0.6875rem; font-weight: 600;
    letter-spacing: 0.08em; text-transform: uppercase;
    color: var(--text-muted); margin-bottom: var(--space-lg);
}
.feature-text h3 {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    font-weight: 800; letter-spacing: -0.02em;
    color: var(--text); margin-bottom: var(--space-md);
}
.feature-text p {
    font-size: 0.9375rem; color: var(--text-secondary);
    line-height: 1.7; margin-bottom: var(--space-xl);
}
.check-list { display: flex; flex-direction: column; gap: var(--space-sm); }
.check-list li {
    font-size: 0.875rem; color: var(--text-secondary);
    padding-left: var(--space-xl); position: relative; line-height: 1.5;
}
.check-list li::before {
    content: '✓'; position: absolute; left: 0;
    color: var(--success); font-size: 0.75rem; font-weight: 700;
}

/* ── Problem Cards ─────────────────────────────────────────────────── */
.problem-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.problem-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: var(--space-xl);
    transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s var(--ease);
}
.problem-card:hover { transform: translateY(-3px); box-shadow: 0 8px 30px rgba(26, 26, 46, 0.06); border-color: var(--border-focus); }
.problem-icon { color: var(--text-muted); margin-bottom: var(--space-md); }
.problem-title { font-size: 1rem; font-weight: 700; letter-spacing: -0.01em; margin-bottom: var(--space-sm); color: var(--text); }
.problem-desc { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.6; margin-bottom: var(--space-md); }
.problem-source {
    font-family: var(--font-mono); font-size: 0.6875rem;
    color: var(--text-faint); font-style: normal; display: block;
}

/* ── Module Slider ─────────────────────────────────────────────────── */
.module-slider-wrap {
    overflow: hidden;
    padding-bottom: var(--space-xl);
}
.module-slider {
    display: flex;
    gap: var(--space-lg);
    padding: 0 var(--space-xl);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
}
.module-slider::-webkit-scrollbar { display: none; }

.module-slide {
    flex: 0 0 calc(33.333% - var(--space-lg));
    scroll-snap-align: start;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s var(--ease);
}
.module-slide:hover { transform: translateY(-3px); box-shadow: 0 8px 30px rgba(26, 26, 46, 0.06); border-color: var(--border-focus); }
.module-slide-icon { color: var(--text-muted); margin-bottom: var(--space-md); }
.module-slide h4 { font-size: 0.9375rem; font-weight: 700; letter-spacing: -0.01em; margin-bottom: var(--space-sm); color: var(--text); }
.module-slide p { font-size: 0.8125rem; color: var(--text-secondary); line-height: 1.6; }

.slider-dots {
    display: none;
    justify-content: center;
    gap: 8px;
    padding-top: var(--space-lg);
}
.slider-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--border); border: none; cursor: pointer;
    transition: background var(--duration);
    padding: 0;
}
.slider-dot.active { background: var(--accent); }

/* ── Solution Cards (reuse) ────────────────────────────────────────── */
.solution-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); }
.solution-card {
    padding: var(--space-xl);
    border: 1px solid var(--border); border-radius: var(--radius-lg);
    background: var(--surface);
    transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s var(--ease);
}
.solution-card:hover { transform: translateY(-3px); box-shadow: 0 8px 30px rgba(26, 26, 46, 0.06); border-color: var(--border-focus); }
.solution-number { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-faint); margin-bottom: var(--space-lg); letter-spacing: 0.04em; }
.solution-title { font-size: 1.125rem; font-weight: 700; letter-spacing: -0.02em; margin-bottom: var(--space-md); color: var(--text); }
.solution-desc { font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.6; }

/* ── Security Banner ───────────────────────────────────────────────── */
.security-banner {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-xl); padding: var(--space-4xl);
}
.security-banner .section-subtitle { margin-bottom: var(--space-xl); }

/* ── CTA Section ───────────────────────────────────────────────────── */
.section-cta { text-align: center; background: var(--bg); border-top: 1px solid var(--border-subtle); }
.cta-title {
    font-size: clamp(1.75rem, 3.5vw, 2.75rem);
    font-weight: 800; line-height: 1.1; letter-spacing: -0.03em;
    color: var(--text); margin-bottom: var(--space-lg);
}
.cta-subtitle {
    font-size: 1.0625rem; color: var(--text-secondary);
    max-width: 540px; margin: 0 auto var(--space-2xl); line-height: 1.7;
}

/* ── Page Hero ─────────────────────────────────────────────────────── */
.page-hero {
    padding-top: calc(64px + var(--space-4xl));
    padding-bottom: var(--space-4xl);
    border-bottom: 1px solid var(--border-subtle);
}
.page-hero-title {
    font-size: clamp(2rem, 4.5vw, 3.5rem);
    font-weight: 800; line-height: 1.1; letter-spacing: -0.04em;
    color: var(--text); margin-bottom: var(--space-xl);
}
.page-hero-subtitle { font-size: 1.125rem; color: var(--text-secondary); max-width: 640px; line-height: 1.7; }

/* ── Architecture Grid ─────────────────────────────────────────────── */
.arch-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.arch-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: var(--space-2xl);
    transition: border-color var(--duration);
}
.arch-card:hover { border-color: var(--border-focus); }
.arch-icon { font-size: 1.25rem; color: var(--text-muted); margin-bottom: var(--space-lg); }
.arch-card h3 { font-size: 1rem; font-weight: 700; letter-spacing: -0.01em; margin-bottom: var(--space-sm); }
.arch-card p { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.6; }

/* ── Module Detail Grid ────────────────────────────────────────────── */
.modules-detail-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.module-detail { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--space-2xl); }
.module-detail h3 { font-size: 1.125rem; font-weight: 700; letter-spacing: -0.02em; margin-bottom: var(--space-lg); color: var(--text); }
.module-detail ul { display: flex; flex-direction: column; gap: var(--space-sm); }
.module-detail li { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.5; padding-left: var(--space-lg); position: relative; }
.module-detail li::before { content: '→'; position: absolute; left: 0; color: var(--text-faint); font-size: 0.75rem; }

/* ── AI Features ───────────────────────────────────────────────────── */
.ai-features { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.ai-feature { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--space-2xl); }
.ai-feature-title { font-size: 1rem; font-weight: 700; margin-bottom: var(--space-sm); color: var(--text); }
.ai-feature p { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.6; }

/* ── Stats Grid ────────────────────────────────────────────────────── */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.stat-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--space-2xl); text-align: center; }
.stat-value { font-size: 2.5rem; font-weight: 800; letter-spacing: -0.04em; color: var(--text); line-height: 1; margin-bottom: var(--space-md); }
.stat-label { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.5; margin-bottom: var(--space-sm); }
.stat-source { font-size: 0.6875rem; color: var(--text-faint); font-style: normal; display: block; }

/* ── Security Grid ─────────────────────────────────────────────────── */
.security-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-lg); }
.security-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--space-2xl); }
.security-item-number { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-faint); margin-bottom: var(--space-md); }
.security-item h3 { font-size: 1rem; font-weight: 700; letter-spacing: -0.01em; margin-bottom: var(--space-sm); }
.security-item p { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.6; }

/* ── Compliance Grid ───────────────────────────────────────────────── */
.compliance-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.compliance-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--space-2xl); }
.compliance-item h3 { font-size: 1rem; font-weight: 700; margin-bottom: var(--space-sm); }
.compliance-item p { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.6; }

/* ── Pricing ───────────────────────────────────────────────────────── */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); align-items: start; }
.pricing-card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-xl); padding: var(--space-2xl);
    position: relative; transition: border-color var(--duration);
}
.pricing-card:hover { border-color: var(--border-focus); }
.pricing-card-featured { border-color: var(--accent-muted); background: var(--surface-hover); }
.pricing-card-featured:hover { border-color: var(--accent); }
.pricing-badge {
    position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
    font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
    background: var(--accent); color: var(--bg); padding: 0.25rem 1rem; border-radius: 100px; white-space: nowrap;
}
.pricing-tier { font-size: 0.8125rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); margin-bottom: var(--space-lg); }
.pricing-price { display: flex; align-items: baseline; gap: 2px; margin-bottom: var(--space-md); }
.pricing-currency { font-size: 1.25rem; font-weight: 600; color: var(--text-muted); }
.pricing-amount { font-size: 3rem; font-weight: 800; letter-spacing: -0.04em; color: var(--text); line-height: 1; }
.pricing-period { font-size: 0.875rem; color: var(--text-muted); margin-left: var(--space-xs); }
.pricing-desc { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.6; margin-bottom: var(--space-xl); padding-bottom: var(--space-xl); border-bottom: 1px solid var(--border); }
.pricing-features { display: flex; flex-direction: column; gap: var(--space-sm); margin-bottom: var(--space-xl); }
.pricing-features li { font-size: 0.875rem; color: var(--text-secondary); padding-left: var(--space-xl); position: relative; line-height: 1.5; }
.pricing-features li::before { content: '✓'; position: absolute; left: 0; color: var(--success); font-size: 0.75rem; font-weight: 700; }

/* ── Comparison Table ──────────────────────────────────────────────── */
.comparison-table-wrap { overflow-x: auto; margin-bottom: var(--space-xl); border-radius: var(--radius-lg); border: 1px solid var(--border); }
.comparison-table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
.comparison-table th, .comparison-table td { padding: var(--space-md) var(--space-lg); text-align: left; border-bottom: 1px solid var(--border); }
.comparison-table th { font-size: 0.75rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text-muted); background: var(--surface); }
.comparison-table td { color: var(--text-secondary); }
.comparison-table tr:last-child td { border-bottom: none; }
.comparison-highlight { color: var(--success) !important; font-weight: 600; background: rgba(34, 197, 94, 0.04); }
.comparison-total td { border-top: 2px solid var(--border-focus); font-weight: 600; color: var(--text) !important; }
.comparison-note { font-size: 0.75rem; color: var(--text-faint); line-height: 1.6; }

/* ── Onboarding ────────────────────────────────────────────────────── */
.onboarding-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); }
.onboarding-step { position: relative; padding: var(--space-2xl); background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); }
.onboarding-num { font-family: var(--font-mono); font-size: 2rem; font-weight: 800; color: var(--text-faint); line-height: 1; margin-bottom: var(--space-lg); }
.onboarding-step h3 { font-size: 1rem; font-weight: 700; margin-bottom: var(--space-sm); }
.onboarding-step p { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.6; }

/* ── Contact ───────────────────────────────────────────────────────── */
.contact-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: var(--space-3xl); align-items: start; }
.contact-form-wrap { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-xl); padding: var(--space-2xl); }
.contact-form { display: flex; flex-direction: column; gap: var(--space-lg); }
.form-group { display: flex; flex-direction: column; gap: var(--space-sm); }
.form-label { font-size: 0.8125rem; font-weight: 600; color: var(--text-secondary); }
.form-label .required { color: var(--error); }
.form-input {
    font-family: var(--font-sans); font-size: 0.9375rem;
    padding: 0.75rem 1rem; background: var(--bg);
    border: 1px solid var(--border); border-radius: var(--radius-md);
    color: var(--text); outline: none;
    transition: border-color var(--duration);
    -webkit-appearance: none; appearance: none;
}
.form-input:focus { border-color: var(--border-focus); }
.form-textarea { resize: vertical; min-height: 120px; }
select.form-input { cursor: pointer; }
.contact-success { text-align: center; padding: var(--space-3xl) var(--space-xl); }
.contact-success-icon {
    width: 48px; height: 48px; display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem; font-weight: 700; color: var(--success);
    background: rgba(34, 197, 94, 0.1); border: 1px solid rgba(34, 197, 94, 0.2);
    border-radius: 50%; margin: 0 auto var(--space-lg);
}
.contact-success h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: var(--space-md); }
.contact-success p { font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.6; }
.contact-info { display: flex; flex-direction: column; gap: var(--space-lg); }
.contact-info-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--space-xl); }
.contact-info-card h3 { font-size: 0.9375rem; font-weight: 700; margin-bottom: var(--space-lg); color: var(--text); }
.contact-detail { margin-bottom: var(--space-md); }
.contact-detail:last-child { margin-bottom: 0; }
.contact-detail-label { font-size: 0.75rem; color: var(--text-faint); letter-spacing: 0.04em; text-transform: uppercase; font-weight: 600; margin-bottom: 2px; }
.contact-detail-value { font-size: 0.9375rem; color: var(--text-secondary); }
.contact-steps { display: flex; flex-direction: column; gap: var(--space-sm); counter-reset: step; }
.contact-steps li { font-size: 0.8125rem; color: var(--text-secondary); line-height: 1.5; padding-left: var(--space-xl); position: relative; counter-increment: step; }
.contact-steps li::before { content: counter(step); position: absolute; left: 0; font-family: var(--font-mono); font-size: 0.6875rem; font-weight: 700; color: var(--text-faint); }
.contact-benefits { display: flex; flex-direction: column; gap: var(--space-sm); }
.contact-benefits li { font-size: 0.8125rem; color: var(--text-secondary); padding-left: var(--space-lg); position: relative; }
.contact-benefits li::before { content: '→'; position: absolute; left: 0; color: var(--text-faint); font-size: 0.75rem; }

/* ── Footer ────────────────────────────────────────────────────────── */
.footer { border-top: 1px solid var(--border-subtle); padding: var(--space-4xl) 0; background: var(--bg); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: var(--space-3xl); margin-bottom: var(--space-3xl); }
.footer-logo { display: flex; align-items: center; gap: 8px; font-size: 1.5rem; font-weight: 700; letter-spacing: -0.04em; color: var(--accent); margin-bottom: var(--space-md); }
.footer-logo span { font-weight: 300; color: var(--text-muted); }
.footer-tagline { font-size: 0.875rem; color: var(--text-muted); line-height: 1.6; }
.footer-heading { font-size: 0.6875rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); margin-bottom: var(--space-lg); }
.footer-col { display: flex; flex-direction: column; gap: var(--space-sm); }
.footer-link { font-size: 0.8125rem; color: var(--text-secondary); transition: color var(--duration); }
.footer-link:hover { color: var(--text); }
.footer-bottom { padding-top: var(--space-2xl); border-top: 1px solid var(--border-subtle); display: flex; justify-content: space-between; align-items: center; }
.footer-bottom p { font-size: 0.75rem; color: var(--text-faint); }
.footer-note { font-style: italic; }
.footer-bottom-links { display: flex; align-items: center; gap: var(--space-lg); }
.footer-login-link {
    display: inline-flex; align-items: center; gap: 0.375rem;
    font-size: 0.75rem; color: var(--text-faint); text-decoration: none;
    transition: color var(--duration) var(--ease); letter-spacing: 0.02em;
}
.footer-login-link:hover { color: var(--text); }
.footer-login-link svg { opacity: 0.6; transition: opacity var(--duration) var(--ease), transform var(--duration) var(--ease); }
.footer-login-link:hover svg { opacity: 1; transform: translateX(2px); }

/* ── AI Chat Widget ────────────────────────────────────────────────── */
#mod-chat-toggle {
    position: fixed; bottom: 24px; right: 24px;
    width: 52px; height: 52px; border-radius: var(--radius-lg);
    background: var(--accent); border: 1px solid var(--border);
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    transition: all var(--duration); z-index: 1000;
    box-shadow: 0 4px 16px rgba(26, 26, 46, 0.2);
}
#mod-chat-toggle:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(26, 26, 46, 0.3); }
#mod-chat-toggle svg { width: 22px; height: 22px; fill: #f6f4f1; }

#mod-chat-panel {
    position: fixed; bottom: 88px; right: 24px;
    width: 380px; max-height: 520px;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-xl); display: flex; flex-direction: column;
    z-index: 1000; overflow: hidden;
    opacity: 0; visibility: hidden; transform: translateY(10px) scale(0.97);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
    pointer-events: none;
    box-shadow: 0 20px 60px rgba(26, 26, 46, 0.15);
}
#mod-chat-panel.open {
    opacity: 1; visibility: visible;
    transform: translateY(0) scale(1); pointer-events: auto;
}

.chat-header {
    padding: 1rem 1.25rem; border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
    background: var(--surface-hover);
}
.chat-header-left { display: flex; align-items: center; gap: 0.5rem; }
.chat-header-left .dot { width: 6px; height: 6px; background: var(--success); border-radius: 50%; }
.chat-header-left span { font-size: 0.8125rem; font-weight: 600; color: var(--text); }
.chat-close {
    background: none; border: none; color: var(--text-faint);
    cursor: pointer; font-size: 1.25rem; padding: 0; line-height: 1;
    transition: color var(--duration);
}
.chat-close:hover { color: var(--text); }

.chat-messages {
    flex: 1; overflow-y: auto; padding: 1rem 1.25rem;
    display: flex; flex-direction: column; gap: 0.75rem;
    max-height: 360px;
}
.chat-msg {
    max-width: 85%; padding: 0.65rem 0.9rem;
    font-size: 0.85rem; line-height: 1.5;
    border-radius: var(--radius-md);
}
.chat-msg.bot { color: var(--text-secondary); align-self: flex-start; background: var(--bg-alt); border: 1px solid var(--border); }
.chat-msg.user { color: var(--text); align-self: flex-end; background: var(--surface-hover); border: 1px solid var(--border-focus); }

.chat-input-row {
    padding: 0.75rem 1rem; border-top: 1px solid var(--border);
    display: flex; gap: 0.5rem; background: var(--surface);
}
.chat-input-row input {
    flex: 1; background: var(--bg); border: 1px solid var(--border);
    border-radius: var(--radius-md); padding: 0.6rem 0.85rem;
    font-size: 0.85rem; color: var(--text); font-family: var(--font-sans); outline: none;
}
.chat-input-row input:focus { border-color: var(--border-focus); }
.chat-input-row button {
    background: var(--accent); border: none; border-radius: var(--radius-md);
    color: #f6f4f1; padding: 0 1rem; cursor: pointer; font-size: 0.8rem;
    font-weight: 600; transition: opacity var(--duration);
}
.chat-input-row button:hover { opacity: 0.85; }

.typing-indicator {
    display: flex; gap: 4px; align-self: flex-start;
    padding: 0.65rem 0.9rem; background: var(--bg-alt);
    border: 1px solid var(--border); border-radius: var(--radius-md);
}
.typing-indicator span {
    width: 6px; height: 6px; background: var(--text-faint); border-radius: 50%;
    animation: typing-bounce 1.2s ease-in-out infinite;
}
.typing-indicator span:nth-child(2) { animation-delay: 0.15s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.3s; }
@keyframes typing-bounce {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-4px); }
}

/* ── Responsive ────────────────────────────────────────────────────── */
@media (max-width: 1024px) {
    .hero-split { grid-template-columns: 1fr; gap: var(--space-3xl); }
    .hero-visual { max-width: 640px; }

    .feature-row, .feature-row.reverse { grid-template-columns: 1fr; }
    .feature-row.reverse .feature-visual { order: 0; }

    .problem-grid, .modules-grid, .stats-grid, .arch-grid,
    .modules-detail-grid, .ai-features, .compliance-grid { grid-template-columns: repeat(2, 1fr); }

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

    .pricing-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
    .onboarding-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }

    .module-slide { flex: 0 0 calc(50% - var(--space-lg)); }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-cta { display: none; }
    .nav-toggle { display: flex; }
    .mobile-menu { display: block; }

    .hero-stats { flex-direction: column; gap: var(--space-xl); }
    .hero-stat-divider { width: 40px; height: 1px; }

    .problem-grid, .solution-grid, .modules-grid, .stats-grid,
    .security-grid, .arch-grid, .modules-detail-grid, .ai-features,
    .compliance-grid { grid-template-columns: 1fr; }

    .onboarding-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: var(--space-2xl); }
    .footer-bottom { flex-direction: column; gap: var(--space-sm); text-align: center; }
    .footer-bottom-links { flex-direction: column; align-items: center; gap: var(--space-sm); }
    .security-banner { padding: var(--space-2xl); }
    .comparison-table { font-size: 0.8125rem; }
    .comparison-table th, .comparison-table td { padding: var(--space-sm) var(--space-md); }

    /* Module slider — single card on mobile */
    .module-slide { flex: 0 0 calc(85% - var(--space-md)); }
    .slider-dots { display: flex; }

    /* App mockup sidebar hidden on mobile */
    .app-mock-sidebar { display: none; }

    /* Chat widget mobile */
    #mod-chat-panel {
        right: 12px; left: 12px; bottom: 80px;
        width: auto; max-height: 70vh;
    }
    #mod-chat-toggle { bottom: 16px; right: 16px; }
}

@media (max-width: 480px) {
    :root { --space-4xl: 4rem; --space-5xl: 5rem; }
    .container { padding: 0 var(--space-lg); }

    .hero-title { font-size: clamp(1.75rem, 8vw, 2.5rem); }

    .app-mock-stats { grid-template-columns: repeat(2, 1fr); }
    .app-mock-widgets { grid-template-columns: 1fr; }
    .app-mock-kanban { flex-direction: column; }

    .module-slide { flex: 0 0 calc(90% - var(--space-sm)); }
}

/* ── Animations ────────────────────────────────────────────────────── */
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.92); }
}

.reveal {
    opacity: 0; transform: translateY(24px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

.section + .section::before {
    content: ''; display: block; width: 60px; height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-focus), transparent);
    margin: 0 auto;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--accent-soft) !important;
    box-shadow: 0 0 0 3px rgba(26, 26, 46, 0.08);
}