/* ============================================================
   Origentai – Site Stylesheet
   Bootstrap 5 + custom design system
   ============================================================ */

/* ── Custom properties ──────────────────────────────────────── */
:root {
    --clr-purple:       #7c3aed;
    --clr-purple-light: #a855f7;
    --clr-blue:         #2563eb;
    --clr-cyan:         #06b6d4;
    --clr-dark:         #07071a;
    --clr-dark-2:       #0f0f2d;
    --clr-dark-3:       #16163a;
    --clr-dark-card:    #1c1c46;
    --clr-body:         #f1f5f9;
    --clr-text-muted:   #94a3b8;
    --clr-border:       rgba(124, 58, 237, 0.25);

    --grad-primary:  linear-gradient(135deg, #a855f7 0%, #3b82f6 50%, #06b6d4 100%);
    --grad-hero:     linear-gradient(160deg, #07071a 0%, #0f0f2d 60%, #07071a 100%);
    --grad-card:     linear-gradient(145deg, rgba(28,28,70,0.9) 0%, rgba(15,15,45,0.9) 100%);
    --grad-cta:      linear-gradient(135deg, #7c3aed 0%, #2563eb 100%);

    --shadow-glow:   0 0 40px rgba(124, 58, 237, 0.35);
    --shadow-card:   0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-btn:    0 4px 20px rgba(124, 58, 237, 0.4);

    --radius:        14px;
    --radius-lg:     20px;
    --transition:    0.3s ease;

    --font-sans:     'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* ── Reset & base ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

body {
    font-family: var(--font-sans);
    background-color: var(--clr-dark);
    color: var(--clr-body);
    line-height: 1.7;
}

/* ── Accessibility – skip link ──────────────────────────────── */
.skip-link {
    position: absolute;
    top: -3rem;
    left: 1rem;
    z-index: 9999;
    padding: 0.5rem 1rem;
    background: var(--clr-purple);
    color: #fff;
    border-radius: 0 0 var(--radius) var(--radius);
    font-weight: 600;
    transition: top var(--transition);
}
.skip-link:focus { top: 0; }

/* ── Focus indicators ───────────────────────────────────────── */
:focus-visible {
    outline: 2px solid var(--clr-cyan);
    outline-offset: 3px;
    border-radius: 4px;
}

/* ── Gradient text utility ──────────────────────────────────── */
.gradient-text {
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ── Navbar ─────────────────────────────────────────────────── */
#mainNav {
    background: rgba(7, 7, 26, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--clr-border);
    transition: background var(--transition), box-shadow var(--transition);
    padding: 0.75rem 0;
}

#mainNav.scrolled {
    background: rgba(7, 7, 26, 0.97);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.brand-name {
    font-size: 1.4rem;
    font-weight: 800;
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.navbar-nav .nav-link {
    color: rgba(241, 245, 249, 0.8) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    position: relative;
    transition: color var(--transition);
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 1rem;
    right: 1rem;
    height: 2px;
    background: var(--grad-primary);
    border-radius: 2px;
    transform: scaleX(0);
    transition: transform var(--transition);
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: #fff !important;
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
    transform: scaleX(1);
}

.navbar-toggler {
    border-color: var(--clr-border);
    padding: 0.4rem 0.6rem;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28241, 245, 249, 0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ── Buttons ─────────────────────────────────────────────────── */
.btn-gradient {
    background: var(--grad-primary);
    color: #fff !important;
    border: none;
    padding: 0.6rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.92rem;
    letter-spacing: 0.01em;
    box-shadow: var(--shadow-btn);
    transition: box-shadow var(--transition), transform var(--transition), filter var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.btn-gradient:hover {
    box-shadow: 0 6px 28px rgba(124, 58, 237, 0.6);
    transform: translateY(-1px);
    filter: brightness(1.08);
    color: #fff !important;
}

.btn-gradient:active { transform: translateY(0); }

.btn-gradient-lg {
    padding: 0.85rem 2.2rem;
    font-size: 1.05rem;
}

.btn-outline-light-custom {
    border: 1.5px solid rgba(255,255,255,0.35);
    color: rgba(255,255,255,0.9) !important;
    background: transparent;
    padding: 0.85rem 2.2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.05rem;
    transition: border-color var(--transition), background var(--transition), color var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.btn-outline-light-custom:hover {
    border-color: rgba(255,255,255,0.8);
    background: rgba(255,255,255,0.08);
    color: #fff !important;
}

/* ── Hero section ────────────────────────────────────────────── */
.hero-section {
    min-height: 100svh;
    display: flex;
    align-items: center;
    background: var(--grad-hero);
    position: relative;
    overflow: hidden;
    padding: 7rem 0 5rem;
}

/* Animated grid mesh background */
.hero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(124, 58, 237, 0.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(124, 58, 237, 0.07) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridPan 25s linear infinite;
}

/* Radial glow blobs */
.hero-section::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 55% 55% at 20% 40%, rgba(124, 58, 237, 0.18) 0%, transparent 70%),
        radial-gradient(ellipse 40% 40% at 80% 60%, rgba(6, 182, 212, 0.12) 0%, transparent 70%),
        radial-gradient(ellipse 35% 35% at 60% 20%, rgba(37, 99, 235, 0.12) 0%, transparent 70%);
    pointer-events: none;
}

@keyframes gridPan {
    0%   { background-position: 0 0; }
    100% { background-position: 60px 60px; }
}

.hero-content { position: relative; z-index: 1; }

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(124, 58, 237, 0.15);
    border: 1px solid rgba(124, 58, 237, 0.35);
    color: #c084fc;
    padding: 0.35rem 1rem;
    border-radius: 50px;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: clamp(2.4rem, 6vw, 4.2rem);
    font-weight: 800;
    line-height: 1.12;
    letter-spacing: -0.03em;
    color: #fff;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: rgba(241, 245, 249, 0.72);
    max-width: 560px;
    margin-bottom: 2.5rem;
    line-height: 1.75;
}

.hero-cta-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
}

/* Floating logo animation on hero */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-logo-wrap {
    position: relative;
    width: 260px;
    height: 260px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-logo-wrap::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(124,58,237,0.25) 0%, transparent 70%);
    animation: heroPulse 4s ease-in-out infinite;
}

.hero-logo-wrap::after {
    content: '';
    position: absolute;
    inset: 20px;
    border-radius: 50%;
    border: 1px solid rgba(124,58,237,0.3);
    animation: heroPulse 4s ease-in-out 0.5s infinite;
}

@keyframes heroPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50%       { transform: scale(1.08); opacity: 0.6; }
}

.hero-logo-img {
    width: 140px;
    height: 140px;
    animation: heroFloat 6s ease-in-out infinite;
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 0 30px rgba(124,58,237,0.6));
}

@keyframes heroFloat {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-12px); }
}

/* Stat badges on hero */
.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.hero-stat strong {
    display: block;
    font-size: 1.6rem;
    font-weight: 800;
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-stat span {
    font-size: 0.82rem;
    color: var(--clr-text-muted);
    font-weight: 500;
}

/* ── Section spacing & styling ───────────────────────────────── */
.section-pad { padding: 6rem 0; }
.section-pad-sm { padding: 4rem 0; }

.section-dark  { background: var(--clr-dark); }
.section-dark-2 { background: var(--clr-dark-2); }
.section-dark-3 { background: var(--clr-dark-3); }

.section-tag {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--clr-purple-light);
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 800;
    letter-spacing: -0.025em;
    color: #fff;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.section-sub {
    font-size: 1.05rem;
    color: var(--clr-text-muted);
    max-width: 560px;
    line-height: 1.75;
}

/* ── Cards ───────────────────────────────────────────────────── */
.card-service {
    background: var(--grad-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    height: 100%;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    position: relative;
    overflow: hidden;
}

.card-service::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--grad-primary);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    opacity: 0;
    transition: opacity var(--transition);
}

.card-service:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-card), var(--shadow-glow);
    border-color: rgba(124, 58, 237, 0.5);
}

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

.card-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: rgba(124, 58, 237, 0.15);
    border: 1px solid rgba(124, 58, 237, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 1.25rem;
    color: #c084fc;
    transition: background var(--transition), transform var(--transition);
}

.card-service:hover .card-icon {
    background: rgba(124, 58, 237, 0.28);
    transform: scale(1.05);
}

.card-service h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.6rem;
}

.card-service p {
    font-size: 0.93rem;
    color: var(--clr-text-muted);
    line-height: 1.65;
    margin-bottom: 1rem;
}

.card-link {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--clr-purple-light);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    transition: gap var(--transition), color var(--transition);
}

.card-link:hover {
    color: var(--clr-cyan);
    gap: 0.6rem;
}

/* Feature list inside cards */
.feature-list {
    list-style: none;
    padding: 0;
    margin: 0.75rem 0;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    font-size: 0.88rem;
    color: rgba(241, 245, 249, 0.75);
    padding: 0.3rem 0;
}

.feature-list li::before {
    content: '';
    width: 16px;
    height: 16px;
    min-width: 16px;
    border-radius: 50%;
    background: var(--grad-primary);
    display: inline-block;
    margin-top: 3px;
    position: relative;
}

.feature-list li::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Ccircle cx='8' cy='8' r='8' fill='url(%23g)'/%3E%3Cdefs%3E%3ClinearGradient id='g' x1='0' y1='0' x2='16' y2='16' gradientUnits='userSpaceOnUse'%3E%3Cstop stop-color='%23a855f7'/%3E%3Cstop offset='1' stop-color='%2306b6d4'/%3E%3C/linearGradient%3E%3C/defs%3E%3Cpath d='M4.5 8l2.5 2.5 5-5' stroke='white' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-color: transparent;
}

/* ── How it works steps ──────────────────────────────────────── */
.step-card {
    text-align: center;
    padding: 2rem 1rem;
}

.step-number {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--grad-primary);
    color: #fff;
    font-size: 1.3rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    box-shadow: 0 4px 20px rgba(124,58,237,0.45);
}

.step-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.5rem;
}

.step-card p {
    font-size: 0.92rem;
    color: var(--clr-text-muted);
    line-height: 1.65;
}

/* Step connector line (desktop) */
.steps-row {
    position: relative;
}

.steps-row::before {
    content: '';
    position: absolute;
    top: 28px;
    left: calc(16.67% + 28px);
    right: calc(16.67% + 28px);
    height: 1px;
    background: linear-gradient(90deg, #a855f7, #06b6d4);
    opacity: 0.35;
}

@media (max-width: 767.98px) {
    .steps-row::before { display: none; }
}

/* ── Benefits / features ─────────────────────────────────────── */
.benefit-item {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
    padding: 1.5rem;
    border-radius: var(--radius);
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.05);
    transition: background var(--transition), border-color var(--transition);
}

.benefit-item:hover {
    background: rgba(124,58,237,0.08);
    border-color: var(--clr-border);
}

.benefit-icon {
    font-size: 1.8rem;
    color: var(--clr-purple-light);
    flex-shrink: 0;
    line-height: 1;
    margin-top: 0.1rem;
}

.benefit-item h4 {
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.3rem;
}

.benefit-item p {
    font-size: 0.9rem;
    color: var(--clr-text-muted);
    margin: 0;
    line-height: 1.6;
}

/* ── CTA banner ─────────────────────────────────────────────── */
.cta-banner {
    background: linear-gradient(135deg, rgba(124,58,237,0.25) 0%, rgba(37,99,235,0.2) 50%, rgba(6,182,212,0.15) 100%);
    border: 1px solid rgba(124,58,237,0.3);
    border-radius: var(--radius-lg);
    padding: 4rem 3rem;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.cta-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 60% 80% at 50% 0%, rgba(124,58,237,0.15) 0%, transparent 70%);
    pointer-events: none;
}

.cta-banner h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.025em;
    margin-bottom: 1rem;
}

.cta-banner p {
    color: rgba(241,245,249,0.75);
    font-size: 1.05rem;
    max-width: 480px;
    margin: 0 auto 2rem;
}

/* ── Contact form ────────────────────────────────────────────── */
.form-card {
    background: var(--grad-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
}

.form-control, .form-select {
    background: rgba(255,255,255,0.05) !important;
    border: 1px solid rgba(255,255,255,0.12) !important;
    color: #f1f5f9 !important;
    border-radius: 10px !important;
    padding: 0.75rem 1rem !important;
    transition: border-color var(--transition), box-shadow var(--transition) !important;
}

.form-control:focus, .form-select:focus {
    border-color: var(--clr-purple) !important;
    box-shadow: 0 0 0 3px rgba(124,58,237,0.2) !important;
    background: rgba(255,255,255,0.08) !important;
    outline: none !important;
}

.form-control::placeholder { color: var(--clr-text-muted) !important; }

.form-select option { background: var(--clr-dark-2); color: #f1f5f9; }

.form-label {
    font-size: 0.88rem;
    font-weight: 600;
    color: rgba(241,245,249,0.8);
    margin-bottom: 0.4rem;
}

.form-check-label { font-size: 0.88rem; color: var(--clr-text-muted); }

.form-check-input {
    background-color: rgba(255,255,255,0.05) !important;
    border-color: rgba(255,255,255,0.2) !important;
}

.form-check-input:checked {
    background-color: var(--clr-purple) !important;
    border-color: var(--clr-purple) !important;
}

.invalid-feedback { font-size: 0.82rem; }

/* Success alert */
.alert-success-custom {
    background: rgba(6,182,212,0.12);
    border: 1px solid rgba(6,182,212,0.4);
    border-radius: var(--radius);
    color: #67e8f9;
    padding: 1.25rem 1.5rem;
}

/* ── Policy pages ────────────────────────────────────────────── */
.policy-hero {
    background: var(--grad-hero);
    padding: 9rem 0 5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.policy-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 60% 60% at 50% 0%, rgba(124,58,237,0.2) 0%, transparent 70%);
}

.policy-content {
    max-width: 780px;
    margin: 0 auto;
}

.policy-content h2 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #fff;
    margin: 2.5rem 0 0.75rem;
    padding-top: 2rem;
    border-top: 1px solid var(--clr-border);
}

.policy-content h2:first-of-type {
    border-top: none;
    padding-top: 0;
    margin-top: 0;
}

.policy-content p, .policy-content li {
    color: rgba(241,245,249,0.78);
    line-height: 1.8;
}

.policy-content ul, .policy-content ol {
    padding-left: 1.5rem;
}

.policy-content ul li, .policy-content ol li {
    margin-bottom: 0.4rem;
}

.policy-content a { color: var(--clr-purple-light); }
.policy-content a:hover { color: var(--clr-cyan); }

.policy-last-updated {
    display: inline-block;
    background: rgba(124,58,237,0.15);
    border: 1px solid var(--clr-border);
    border-radius: 50px;
    padding: 0.4rem 1rem;
    font-size: 0.82rem;
    color: var(--clr-text-muted);
    margin-top: 0.5rem;
}

/* Ethics badge icons */
.ethics-principle {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
    padding: 1.5rem;
    border-radius: var(--radius);
    background: rgba(124,58,237,0.07);
    border: 1px solid rgba(124,58,237,0.18);
    margin-bottom: 1rem;
}

.ethics-icon {
    font-size: 1.6rem;
    color: var(--clr-purple-light);
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.ethics-principle h3 {
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.35rem;
}

.ethics-principle p {
    font-size: 0.9rem;
    color: var(--clr-text-muted);
    margin: 0;
    line-height: 1.65;
}

/* ── About page ─────────────────────────────────────────────── */
.value-card {
    background: var(--grad-card);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    padding: 1.75rem;
    height: 100%;
    text-align: center;
    transition: transform var(--transition), box-shadow var(--transition);
}

.value-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}

.value-card .value-icon {
    font-size: 2.2rem;
    margin-bottom: 1rem;
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.value-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.5rem;
}

.value-card p {
    font-size: 0.9rem;
    color: var(--clr-text-muted);
    margin: 0;
    line-height: 1.65;
}

/* ── Footer ─────────────────────────────────────────────────── */
.site-footer {
    background: #040411;
    border-top: 1px solid var(--clr-border);
    color: var(--clr-text-muted);
}

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 800;
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-tagline {
    font-size: 0.9rem;
    color: var(--clr-text-muted);
    line-height: 1.65;
    margin-top: 0.75rem;
}

.footer-heading {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(241,245,249,0.55);
    margin-bottom: 1rem;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-link {
    color: var(--clr-text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition);
}

.footer-link:hover { color: #fff; }

.footer-divider {
    border-color: rgba(255,255,255,0.06);
    margin: 0;
}

.footer-copyright {
    font-size: 0.85rem;
    color: rgba(148,163,184,0.6);
    margin: 0;
}

address { font-style: normal; }

/* ── Error page ─────────────────────────────────────────────── */
.error-section {
    min-height: 80vh;
    display: flex;
    align-items: center;
    background: var(--grad-hero);
    text-align: center;
    padding: 7rem 0;
}

.error-code {
    font-size: clamp(5rem, 15vw, 10rem);
    font-weight: 900;
    line-height: 1;
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
}

/* ── Scrollbar ───────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--clr-dark); }
::-webkit-scrollbar-thumb { background: var(--clr-purple); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--clr-purple-light); }

/* ── Utility overrides ───────────────────────────────────────── */
.text-muted-custom { color: var(--clr-text-muted) !important; }
.border-gradient {
    border: 1px solid transparent;
    background-clip: padding-box;
    position: relative;
}

.divider-gradient {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(124,58,237,0.5), transparent);
    margin: 0;
    border: none;
}

/* ── Responsive tweaks ──────────────────────────────────────── */
@media (max-width: 991.98px) {
    .navbar-collapse {
        background: rgba(7,7,26,0.97);
        border: 1px solid var(--clr-border);
        border-radius: var(--radius);
        padding: 1rem;
        margin-top: 0.5rem;
    }

    .navbar-nav .nav-link::after { display: none; }

    .hero-visual { margin-top: 3rem; }
}

@media (max-width: 575.98px) {
    .hero-cta-group { flex-direction: column; }
    .hero-cta-group .btn-gradient-lg,
    .hero-cta-group .btn-outline-light-custom { width: 100%; justify-content: center; }
    .cta-banner { padding: 2.5rem 1.5rem; }
}