/* ─────────────────────────────────────────
   Theorem Security Lab — Stylesheet
   ───────────────────────────────────────── */

/* ── Variables ── */
:root {
    --bg-primary:      #000000;
    --bg-secondary:    #080808;
    --bg-card:         rgba(255, 255, 255, 0.03);
    --bg-card-hover:   rgba(255, 255, 255, 0.055);
    --border:          rgba(255, 255, 255, 0.07);
    --border-hover:    rgba(0, 210, 255, 0.35);
    --accent-cyan:     #00d2ff;
    --accent-cyan-dim: rgba(0, 210, 255, 0.15);
    --accent-purple:   #7c4dff;
    --accent-purple-dim: rgba(124, 77, 255, 0.12);
    --accent-green:    #00e5a0;
    --text-primary:    #e8edf5;
    --text-secondary:  #8494a9;
    --text-muted:      #4a5568;
    --shadow-glow:     0 0 40px rgba(0, 210, 255, 0.08);
    --shadow-card:     0 4px 24px rgba(0, 0, 0, 0.4);
    --radius-sm:       8px;
    --radius-md:       14px;
    --radius-lg:       20px;
    --transition:      0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --font-main:       'Inter', -apple-system, sans-serif;
    --font-mono:       'JetBrains Mono', monospace;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
}

/* ── Container ── */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: rgba(0, 210, 255, 0.2);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 210, 255, 0.4);
}

/* ─────────────────────────────────────────
   Buttons
   ───────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    font-family: var(--font-main);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-cyan), #0099cc);
    color: #000;
    box-shadow: 0 0 24px rgba(0, 210, 255, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 36px rgba(0, 210, 255, 0.4);
    background: linear-gradient(135deg, #33ddff, #00b8ee);
}

.btn-ghost {
    background: transparent;
    color: var(--text-primary);
    border: 1.5px solid var(--border);
}

.btn-ghost:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    background: var(--accent-cyan-dim);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ─────────────────────────────────────────
   Navigation
   ───────────────────────────────────────── */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(4, 9, 26, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 14px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-shrink: 0;
    text-decoration: none;
}

.nav-wordmark {
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    color: var(--text-primary);
    font-family: var(--font-main);
}

.hero-brand-title {
    font-size: clamp(3.5rem, 9vw, 7rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1.0;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-family: var(--font-main);
    text-align: center;
    margin-bottom: 24px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: #fff;
    flex-shrink: 0;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.logo-main {
    font-size: 1rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.logo-sub {
    font-size: 0.68rem;
    font-weight: 500;
    color: var(--accent-cyan);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    margin-left: auto;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--accent-cyan);
    transition: var(--transition);
}

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

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    padding: 10px 22px;
    background: linear-gradient(135deg, var(--accent-cyan), #0099cc);
    color: #000;
    font-size: 0.875rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    white-space: nowrap;
    flex-shrink: 0;
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 0 24px rgba(0, 210, 255, 0.35);
}

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

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.hamburger.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.hamburger.open span:nth-child(2) {
    opacity: 0;
}
.hamburger.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(4, 9, 26, 0.98);
    backdrop-filter: blur(20px);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.mobile-menu.open {
    opacity: 1;
    pointer-events: all;
}

.mobile-menu ul {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
    text-align: center;
}

.mobile-menu a {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: var(--transition);
}

.mobile-menu a:hover {
    color: var(--accent-cyan);
}

.mobile-menu .mobile-cta {
    padding: 14px 36px;
    background: linear-gradient(135deg, var(--accent-cyan), #0099cc);
    color: #000;
    border-radius: var(--radius-sm);
    font-size: 1rem;
}

/* ─────────────────────────────────────────
   Hero
   ───────────────────────────────────────── */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 120px 24px 60px;
}

#heroCanvas {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 80% 60% at 50% 40%, rgba(0, 210, 255, 0.06) 0%, transparent 70%),
                radial-gradient(ellipse 60% 50% at 20% 80%, rgba(124, 77, 255, 0.05) 0%, transparent 70%),
                linear-gradient(to bottom, transparent 60%, var(--bg-primary) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 820px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 18px;
    background: rgba(0, 210, 255, 0.08);
    border: 1px solid rgba(0, 210, 255, 0.2);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-cyan);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 32px;
}

.badge-dot {
    width: 7px;
    height: 7px;
    background: var(--accent-cyan);
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: 0.5; transform: scale(0.7); }
}

.hero-title {
    font-size: clamp(3.5rem, 9vw, 7rem);
    font-weight: 900;
    line-height: 1.0;
    letter-spacing: -0.04em;
    color: var(--text-primary);
    margin-bottom: 28px;
}

.hero-title .accent {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    -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: 620px;
    margin: 0 auto 44px;
    line-height: 1.75;
    font-weight: 400;
}

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

/* Hero Stats Bar */
.hero-stats {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 0;
    margin-top: 80px;
    background: rgba(255, 255, 255, 0.025);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    backdrop-filter: blur(12px);
    overflow: hidden;
}

.stat {
    padding: 28px 48px;
    text-align: center;
    flex: 1;
}

.stat-number {
    font-size: 2.4rem;
    font-weight: 900;
    color: var(--text-primary);
    letter-spacing: -0.03em;
    line-height: 1;
    font-family: var(--font-mono);
}

.stat-number span {
    color: var(--accent-cyan);
}

.stat-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 8px;
    font-weight: 600;
}

.stat-divider {
    width: 1px;
    height: 60px;
    background: var(--border);
    flex-shrink: 0;
}

/* ─────────────────────────────────────────
   Services Section
   ───────────────────────────────────────── */
.services {
    padding: 120px 0;
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--accent-cyan-dim);
    border: 1px solid rgba(0, 210, 255, 0.2);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-cyan);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    margin-bottom: 20px;
    line-height: 1.15;
}

.section-header p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.75;
}

/* ── Category Filter ── */
.category-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 72px;
    justify-content: center;
}

.filter-btn {
    padding: 10px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 100px;
    color: var(--text-secondary);
    font-family: var(--font-main);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.filter-btn:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    background: var(--accent-cyan-dim);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--accent-cyan), #0099cc);
    border-color: transparent;
    color: #000;
    box-shadow: 0 0 20px rgba(0, 210, 255, 0.25);
}

/* ── Category Section ── */
.category-section {
    margin-bottom: 80px;
    transition: var(--transition);
}

.category-section.hidden {
    display: none;
}

.category-header {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 32px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--border);
}

.category-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--accent-cyan-dim), var(--accent-purple-dim));
    border: 1px solid rgba(0, 210, 255, 0.18);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--accent-cyan);
    flex-shrink: 0;
}

.category-header-text h3 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    margin-bottom: 6px;
}

.category-header-text p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    max-width: 560px;
    line-height: 1.6;
}

/* ── Services Grid ── */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

/* ── Service Card ── */
.service-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 32px;
    transition: var(--transition);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.service-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-card), 0 0 30px rgba(0, 210, 255, 0.06);
}

.card-accent {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.service-card:hover .card-accent {
    transform: scaleX(1);
}

.service-card--wide {
    grid-column: 1 / -1;
}

.card-icon {
    width: 46px;
    height: 46px;
    background: var(--accent-cyan-dim);
    border: 1px solid rgba(0, 210, 255, 0.2);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--accent-cyan);
    flex-shrink: 0;
}

.service-card h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.01em;
    line-height: 1.3;
}

.service-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.75;
    flex: 1;
}

/* ── Benefit Tags ── */
.card-benefits {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 4px;
}

.benefit-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    background: rgba(0, 229, 160, 0.07);
    border: 1px solid rgba(0, 229, 160, 0.18);
    border-radius: 100px;
    font-size: 0.74rem;
    font-weight: 600;
    color: var(--accent-green);
    white-space: nowrap;
}

.benefit-tag i {
    font-size: 0.65rem;
}

/* ── Frameworks Grid ── */
.frameworks-intro {
    margin-bottom: 24px;
}

.frameworks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 12px;
    margin-bottom: 28px;
}

.framework-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 18px;
    background: rgba(124, 77, 255, 0.05);
    border: 1px solid rgba(124, 77, 255, 0.15);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.framework-item:hover {
    border-color: rgba(124, 77, 255, 0.35);
    background: rgba(124, 77, 255, 0.08);
}

.framework-badge {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--accent-purple);
    background: rgba(124, 77, 255, 0.12);
    border: 1px solid rgba(124, 77, 255, 0.25);
    border-radius: 6px;
    padding: 4px 10px;
    white-space: nowrap;
    flex-shrink: 0;
}

.framework-name {
    font-size: 0.82rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ─────────────────────────────────────────
   Policy Library Dropdown
   ───────────────────────────────────────── */
.policy-library {
    margin-top: 8px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.policy-library-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    background: rgba(0, 210, 255, 0.05);
    border: none;
    color: var(--accent-cyan);
    font-family: var(--font-main);
    font-size: 0.88rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    gap: 10px;
}

.policy-library-toggle:hover {
    background: rgba(0, 210, 255, 0.1);
}

.policy-library-toggle span {
    display: flex;
    align-items: center;
    gap: 10px;
}

.policy-chevron {
    transition: transform 0.3s ease;
    flex-shrink: 0;
    font-size: 0.8rem;
}

.policy-chevron.open {
    transform: rotate(180deg);
}

.policy-library-content {
    display: none;
    flex-direction: column;
    border-top: 1px solid var(--border);
}

.policy-library-content.open {
    display: flex;
}

/* Policy Group (sub-accordion) */
.policy-group {
    border-bottom: 1px solid var(--border);
}

.policy-group:last-child {
    border-bottom: none;
}

.policy-group-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 18px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-main);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
}

.policy-group-toggle:hover {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
}

.policy-group-toggle.open {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.03);
}

.policy-group-toggle i:first-child {
    color: var(--accent-cyan);
    font-size: 0.7rem;
    flex-shrink: 0;
    transition: transform 0.25s ease;
}

.policy-group-toggle.open i:first-child {
    transform: rotate(90deg);
}

.policy-group-toggle i:nth-child(2) {
    color: var(--accent-cyan);
    font-size: 0.85rem;
    flex-shrink: 0;
}

.policy-count {
    margin-left: auto;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--accent-cyan);
    background: var(--accent-cyan-dim);
    border: 1px solid rgba(0, 210, 255, 0.2);
    border-radius: 100px;
    padding: 2px 9px;
    flex-shrink: 0;
}

.policy-group-content {
    display: none;
    flex-direction: column;
    gap: 0;
    padding: 4px 0 12px 48px;
}

.policy-group-content.open {
    display: flex;
}

.policy-group-content li {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.6;
    padding: 7px 18px 7px 0;
    border-bottom: 1px solid rgba(255,255,255,0.04);
}

.policy-group-content li:last-child {
    border-bottom: none;
}

.policy-group-content li strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Nested runbooks container — no extra left padding */
.policy-group-content--nested {
    padding-left: 0;
    gap: 0;
}

/* ── Level 2: Policy Subgroup ── */
.policy-subgroup {
    border-bottom: 1px solid rgba(255,255,255,0.04);
}
.policy-subgroup:last-child {
    border-bottom: none;
}

.policy-subgroup-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 18px 10px 32px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-main);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
}

.policy-subgroup-toggle:hover {
    background: rgba(255,255,255,0.02);
    color: var(--text-primary);
}

.policy-subgroup-toggle.open {
    color: var(--text-primary);
}

.policy-subgroup-chevron {
    font-size: 0.65rem;
    color: var(--accent-cyan);
    flex-shrink: 0;
    transition: transform 0.25s ease;
}

.policy-subgroup-toggle.open .policy-subgroup-chevron {
    transform: rotate(90deg);
}

.policy-subgroup-toggle i:nth-child(2) {
    color: var(--accent-cyan);
    font-size: 0.8rem;
    flex-shrink: 0;
}

.policy-subgroup-content {
    display: none;
    flex-direction: column;
}

.policy-subgroup-content.open {
    display: flex;
}

/* When subgroup content is a flat list (no sub-sub-groups) */
.policy-subgroup-content--list {
    padding: 4px 18px 10px 60px;
    gap: 0;
}

.policy-subgroup-content--list li {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.6;
    padding: 6px 0;
    border-bottom: 1px solid rgba(255,255,255,0.03);
}

.policy-subgroup-content--list li:last-child {
    border-bottom: none;
}

.policy-subgroup-content--list li strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* ── Level 3: Policy Sub-subgroup ── */
.policy-subsubgroup {
    border-bottom: 1px solid rgba(255,255,255,0.03);
}
.policy-subsubgroup:last-child {
    border-bottom: none;
}

.policy-subsubgroup-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 18px 9px 52px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-main);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
}

.policy-subsubgroup-toggle:hover {
    background: rgba(255,255,255,0.02);
    color: var(--text-primary);
}

.policy-subsubgroup-toggle.open {
    color: var(--text-primary);
}

.policy-subsubgroup-chevron {
    font-size: 0.6rem;
    color: var(--accent-purple);
    flex-shrink: 0;
    transition: transform 0.25s ease;
}

.policy-subsubgroup-toggle.open .policy-subsubgroup-chevron {
    transform: rotate(90deg);
}

.policy-subsubgroup-content {
    display: none;
    flex-direction: column;
    padding: 4px 18px 10px 72px;
    gap: 0;
}

.policy-subsubgroup-content.open {
    display: flex;
}

.policy-subsubgroup-content li {
    font-size: 0.79rem;
    color: var(--text-secondary);
    line-height: 1.6;
    padding: 6px 0;
    border-bottom: 1px solid rgba(255,255,255,0.03);
}

.policy-subsubgroup-content li:last-child {
    border-bottom: none;
}

.policy-subsubgroup-content li strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* ─────────────────────────────────────────
   Contact Section
   ───────────────────────────────────────── */
.contact {
    padding: 120px 0;
    background: linear-gradient(to bottom, var(--bg-primary), var(--bg-secondary));
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
    opacity: 0.3;
}

.contact-grid {
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 18px;
}

.contact-icon {
    width: 44px;
    height: 44px;
    background: var(--accent-cyan-dim);
    border: 1px solid rgba(0, 210, 255, 0.2);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-cyan);
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.contact-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.contact-guarantee {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 18px 20px;
    background: rgba(0, 229, 160, 0.05);
    border: 1px solid rgba(0, 229, 160, 0.15);
    border-radius: var(--radius-sm);
    margin-top: 12px;
}

.contact-guarantee i {
    color: var(--accent-green);
    margin-top: 2px;
    flex-shrink: 0;
}

.contact-guarantee p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ── Contact Form ── */
.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 44px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.07em;
}

.form-group input,
.form-group select,
.form-group textarea {
    background: rgba(255, 255, 255, 0.04);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.9rem;
    transition: var(--transition);
    outline: none;
    width: 100%;
    appearance: none;
    -webkit-appearance: none;
}

.form-group select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%238494a9' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 20px;
    padding-right: 40px;
    cursor: pointer;
}

.form-group select option,
.form-group select optgroup {
    background: #0d1a35;
    color: var(--text-primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent-cyan);
    background: rgba(0, 210, 255, 0.04);
    box-shadow: 0 0 0 3px rgba(0, 210, 255, 0.08);
}

/* ── Multi-select ── */
.label-hint {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: none;
    letter-spacing: 0;
}

.multi-select {
    position: relative;
}

.multi-select-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.04);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    color: var(--text-muted);
    font-family: var(--font-main);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    gap: 10px;
}

.multi-select-toggle:hover,
.multi-select-toggle.open {
    border-color: var(--accent-cyan);
    background: rgba(0, 210, 255, 0.04);
}

.multi-select-toggle.has-selection {
    color: var(--text-primary);
}

.multi-select-toggle i {
    flex-shrink: 0;
    font-size: 0.8rem;
    transition: transform 0.25s ease;
}

.multi-select-toggle.open i {
    transform: rotate(180deg);
}

.multi-select-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    right: 0;
    background: #0d1a35;
    border: 1.5px solid var(--accent-cyan);
    border-radius: var(--radius-sm);
    max-height: 280px;
    overflow-y: auto;
    z-index: 100;
    box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}

.multi-select-dropdown.open {
    display: block;
}

.ms-group-label {
    padding: 8px 14px 4px;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--accent-cyan);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    background: rgba(0, 210, 255, 0.05);
    border-top: 1px solid var(--border);
}

.ms-group-label:first-child {
    border-top: none;
}

.ms-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 14px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.ms-option:hover {
    background: rgba(255,255,255,0.04);
    color: var(--text-primary);
}

.ms-option input[type="checkbox"] {
    width: 15px;
    height: 15px;
    accent-color: var(--accent-cyan);
    flex-shrink: 0;
    cursor: pointer;
}

.ms-option input[type="checkbox"]:checked + span {
    color: var(--text-primary);
    font-weight: 600;
}

/* Selected service tags */
.ms-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.ms-tag {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 5px 10px 5px 12px;
    background: var(--accent-cyan-dim);
    border: 1px solid rgba(0, 210, 255, 0.3);
    border-radius: 100px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--accent-cyan);
    animation: tagIn 0.2s ease;
}

@keyframes tagIn {
    from { opacity: 0; transform: scale(0.85); }
    to   { opacity: 1; transform: scale(1); }
}

.ms-tag-remove {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    background: rgba(0, 210, 255, 0.2);
    border: none;
    border-radius: 50%;
    color: var(--accent-cyan);
    font-size: 0.6rem;
    cursor: pointer;
    transition: var(--transition);
    padding: 0;
    line-height: 1;
    flex-shrink: 0;
}

.ms-tag-remove:hover {
    background: rgba(0, 210, 255, 0.4);
    color: #fff;
}

/* Scrollbar inside dropdown */
.multi-select-dropdown::-webkit-scrollbar { width: 4px; }
.multi-select-dropdown::-webkit-scrollbar-thumb { background: rgba(0,210,255,0.3); border-radius: 2px; }

.form-section-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.01em;
    padding-bottom: 4px;
}

.form-section-title i {
    color: var(--accent-cyan);
    font-size: 1rem;
}

.form-divider {
    display: flex;
    align-items: center;
    gap: 14px;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.form-divider::before,
.form-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

/* Contact Method Picker */
.contact-method-picker {
    display: flex;
    gap: 0.75rem;
}

.contact-method-option {
    flex: 1;
    cursor: pointer;
}

.contact-method-option input[type="radio"] {
    display: none;
}

.contact-method-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s ease;
    cursor: pointer;
    width: 100%;
}

.contact-method-btn i {
    font-size: 0.85rem;
}

.contact-method-option input[type="radio"]:checked + .contact-method-btn {
    border-color: var(--accent-cyan);
    background: rgba(0, 210, 255, 0.1);
    color: var(--accent-cyan);
}

.contact-method-option:hover .contact-method-btn {
    border-color: rgba(0, 210, 255, 0.4);
    color: var(--text-primary);
}

.form-success {
    display: none;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    background: rgba(0, 229, 160, 0.08);
    border: 1px solid rgba(0, 229, 160, 0.25);
    border-radius: var(--radius-sm);
    color: var(--accent-green);
    font-size: 0.9rem;
    font-weight: 600;
}

.form-success.visible {
    display: flex;
}

/* ─────────────────────────────────────────
   Footer
   ───────────────────────────────────────── */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 60px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-brand p {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 300px;
}

.footer-links h4 {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 20px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 0.88rem;
    color: var(--text-muted);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent-cyan);
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding: 24px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.footer-bottom p {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.footer-legal {
    display: flex;
    gap: 24px;
}

.footer-legal a {
    font-size: 0.82rem;
    color: var(--text-muted);
    transition: var(--transition);
}

.footer-legal a:hover {
    color: var(--accent-cyan);
}

/* ─────────────────────────────────────────
   Scroll Reveal Animations
   ───────────────────────────────────────── */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ─────────────────────────────────────────
   Responsive
   ───────────────────────────────────────── */

/* ── Wide screens: 4 columns ── */
@media (min-width: 1500px) {
    .container {
        max-width: 1600px;
    }

    .services-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .service-card--wide {
        grid-column: 1 / -1;
    }

    .hero-title {
        font-size: clamp(5rem, 8vw, 9rem);
    }

    .hero-brand-title {
        font-size: clamp(4rem, 7vw, 8rem);
    }

    .footer-grid {
        grid-template-columns: 2.5fr 1fr 1fr 1fr;
    }
}

/* ── Standard desktop: 3 columns (default, no media query needed) ── */

/* ── Medium desktop / landscape tablet: 2 columns ── */
@media (max-width: 1100px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

/* ── Tablet portrait ── */
@media (max-width: 900px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: 32px;
    }

    .hero-stats {
        flex-direction: column;
        width: 100%;
        max-width: 420px;
        margin: 60px auto 0;
    }

    .stat-divider {
        width: 80%;
        height: 1px;
    }

    .stat {
        padding: 20px 32px;
    }

    .category-filter {
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 8px;
        justify-content: flex-start;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .category-filter::-webkit-scrollbar {
        display: none;
    }

    .filter-btn {
        flex-shrink: 0;
    }
}

/* ── Mobile landscape / large phones ── */
@media (max-width: 768px) {
    .nav-links,
    .nav-cta {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .hero {
        padding: 100px 20px 48px;
    }

    .hero-title {
        font-size: clamp(2.6rem, 11vw, 4.5rem);
    }

    .hero-brand-title {
        font-size: clamp(2rem, 10vw, 4rem);
    }

    .hero-subtitle {
        font-size: 0.95rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .services {
        padding: 80px 0;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .service-card--wide {
        grid-column: auto;
    }

    .frameworks-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

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

    .category-header {
        flex-direction: column;
        gap: 14px;
    }

    .section-header h2 {
        font-size: 1.75rem;
    }

    .contact-grid {
        gap: 32px;
    }

    .multi-select-dropdown {
        max-height: 240px;
    }

    .policy-library-toggle {
        font-size: 0.82rem;
    }
}

/* ── Mobile portrait ── */
@media (max-width: 480px) {
    .contact-method-picker {
        flex-direction: column;
        gap: 0.5rem;
    }

    .container {
        padding: 0 16px;
    }

    .hero {
        padding: 90px 16px 40px;
        text-align: center;
    }

    .hero-badge {
        font-size: 0.68rem;
        padding: 6px 14px;
    }

    .hero-title {
        font-size: clamp(2.2rem, 13vw, 3.5rem);
    }

    .hero-brand-title {
        font-size: clamp(1.6rem, 11vw, 3rem);
    }

    .btn {
        padding: 12px 22px;
        font-size: 0.88rem;
        width: 100%;
        justify-content: center;
    }

    .hero-stats {
        max-width: 100%;
        margin-top: 40px;
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .service-card {
        padding: 24px 20px;
    }

    .contact-form {
        padding: 24px 16px;
    }

    .contact-info {
        gap: 20px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }

    .footer-legal {
        justify-content: center;
    }

    .category-header-text h3 {
        font-size: 1.2rem;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .services {
        padding: 60px 0;
    }

    .contact {
        padding: 60px 0;
    }

    .footer {
        padding: 48px 0 0;
    }

    .ms-option {
        font-size: 0.8rem;
        padding: 9px 12px;
    }
}