/* ==========================================================================
   ВИБРОЭКСПЕРТ — PERMANENT DARK VELVET ESPRESSO & GOLD DESIGN SYSTEM
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. ПЕРЕМЕННЫЕ ТЁМНОЙ ТЕМЫ (PERMANENT DARK VELVET ESPRESSO & GOLD)
   -------------------------------------------------------------------------- */
:root {
    --bg-main: #14110E;
    --bg-card: #1F1A15;
    --bg-alt: #191511;
    --bg-input: #17130F;
    
    --border-color: rgba(203, 176, 104, 0.25);
    --border-gold: #D4AF37;
    
    --text-primary: #F5EFE6;
    --text-secondary: #D4C9B8;
    --text-muted: #9E9180;
    
    --accent: #D4AF37;
    --accent-hover: #F0CB5A;
    --accent-light: rgba(212, 175, 55, 0.12);
    --accent-gold-gradient: linear-gradient(135deg, #F5DC8C 0%, #D4AF37 50%, #9E7D1A 100%);

    --header-bg: rgba(20, 17, 14, 0.94);
    --shadow-card: 0 15px 40px -10px rgba(0, 0, 0, 0.6), 0 0 1px rgba(212, 175, 55, 0.3);
    --shadow-hover: 0 20px 45px -10px rgba(212, 175, 55, 0.25);
    
    --font-serif: 'Playfair Display', Georgia, serif;
    --font-sans: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    --radius-sm: 6px;
    --radius: 12px;
    --radius-lg: 20px;

    --transition-theme: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}

/* --------------------------------------------------------------------------
   2. БАЗОВЫЕ СТИЛИ
   -------------------------------------------------------------------------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: auto;
    scroll-padding-top: 96px;
}

section[id],
details[id] {
    scroll-margin-top: 96px;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    transition: var(--transition-theme);
    overflow-x: hidden;
}

img,
iframe {
    max-width: 100%;
}

button,
input,
textarea {
    font: inherit;
}

button {
    color: inherit;
}

:focus-visible {
    outline: 2px solid var(--accent-hover);
    outline-offset: 3px;
}

@media (min-width: 1181px) {
    body {
        padding-left: 220px;
    }
}

.container {
    max-width: 1220px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 88px 0;
}

.section-alt {
    background: var(--bg-alt);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.section-title-wrap {
    max-width: 820px;
    margin: 0 auto 42px;
    text-align: center;
}

.section-title-wrap h2 {
    font-size: 2.35rem;
    line-height: 1.18;
}

.section-title-wrap p {
    color: var(--text-secondary);
    font-size: 0.98rem;
}

h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 600;
    color: var(--text-primary);
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: all 0.25s ease;
}

a:hover { color: var(--accent-hover); }

.gold-divider {
    height: 1px;
    width: 60px;
    background: var(--accent-gold-gradient);
    margin: 18px 0;
}
.gold-divider.center { margin: 18px auto; }

.gold-subtitle-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--accent);
    display: block;
    margin-bottom: 8px;
}

/* --------------------------------------------------------------------------
   3. ШАПКА ВВЕРХУ С ЛОГОТИПОМ
   -------------------------------------------------------------------------- */
.site-header {
    background: var(--header-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition-theme);
}

.header-gold-line {
    height: 3px;
    background: var(--accent-gold-gradient);
    width: 100%;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    gap: 16px 20px;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-shrink: 0;
}

.brand-logo:hover { text-decoration: none; }

.brand-logo-img {
    height: 44px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 6px rgba(212, 175, 55, 0.35));
    transition: transform 0.3s ease;
}

.brand-logo:hover .brand-logo-img {
    transform: scale(1.06);
}

.brand-titles { display: flex; flex-direction: column; }

.brand-name {
    font-family: var(--font-serif);
    font-size: 1.18rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--text-primary);
    line-height: 1;
    white-space: nowrap;
}

.brand-tagline {
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    color: var(--accent);
    margin-top: 3px;
    white-space: nowrap;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    position: relative;
    padding: 6px 0;
    white-space: nowrap;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gold-gradient);
    transition: width 0.3s ease;
}

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

.nav-links a:hover,
.nav-links a.nav-active {
    color: var(--accent);
    text-decoration: none;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
}

.email-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-primary);
    padding: 6px 14px;
    border-radius: 50px;
    background: var(--accent-light);
    border: 1px solid var(--border-color);
    white-space: nowrap;
}

.email-badge:hover {
    border-color: var(--accent);
    text-decoration: none;
    box-shadow: 0 0 12px rgba(212, 175, 55, 0.3);
}

.side-section-nav {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 850;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 220px;
    min-height: 100vh;
    padding: 92px 16px 28px;
    background: linear-gradient(180deg, rgba(20, 17, 14, 0.98), rgba(31, 26, 21, 0.96));
    border-right: 1px solid var(--border-color);
    box-shadow: 18px 0 45px -30px rgba(0, 0, 0, 0.9), inset -1px 0 0 rgba(212, 175, 55, 0.08);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

.side-section-nav a {
    display: grid;
    grid-template-columns: 28px 1fr;
    align-items: center;
    gap: 8px;
    min-height: 38px;
    padding: 7px 10px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    line-height: 1.25;
    text-transform: uppercase;
}

.side-section-nav a span {
    font-family: var(--font-mono);
    color: var(--accent);
    opacity: 0.75;
}

.side-section-nav a:hover,
.side-section-nav a.nav-active {
    color: var(--text-primary);
    border-color: var(--border-color);
    background: var(--accent-light);
    text-decoration: none;
}

.side-section-nav a.nav-active {
    border-color: var(--accent);
    box-shadow: inset 3px 0 0 var(--accent);
}

/* --------------------------------------------------------------------------
   4. КНОПКИ
   -------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    font-family: var(--font-sans);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    user-select: none;
}

.btn-gold-luxury {
    background: var(--accent-gold-gradient);
    color: #14110E;
    box-shadow: 0 4px 18px rgba(212, 175, 55, 0.3);
}

.btn-gold-luxury:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.45);
    color: #14110E;
}

.btn-secondary-luxury {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary-luxury:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.btn-full { width: 100%; }
.btn-sm { padding: 9px 18px; font-size: 0.75rem; }

/* --------------------------------------------------------------------------
   5. ASYMMETRIC HERO SECTION
   -------------------------------------------------------------------------- */
.asymmetric-hero {
    padding: 90px 0 80px;
}

.hero-split-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: center;
}

.heritage-pill {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 6px 16px;
    background: var(--accent-light);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    color: var(--accent);
    margin-bottom: 24px;
}

.pill-gold-dot {
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
}

.hero-main-heading {
    font-size: 3.2rem;
    line-height: 1.15;
    margin-bottom: 14px;
}

.title-gold-accent {
    width: 70px;
    height: 2px;
    background: var(--accent-gold-gradient);
    margin-bottom: 24px;
}

.hero-description {
    font-size: 1.08rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 620px;
}

.hero-stats-row {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 20px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 36px;
}

.hero-stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1.1;
}

.stat-caption {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.stat-vertical-line {
    width: 1px;
    height: 36px;
    background: var(--border-color);
}

.hero-cta-group {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Правый терминал расчета */
.hero-terminal-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-card);
    position: relative;
}

.terminal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.terminal-title {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--accent);
}

.terminal-status {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: #10B981;
    font-weight: 600;
}

.quick-service-tabs {
    display: flex;
    gap: 8px;
    background: var(--bg-alt);
    padding: 4px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
}

.tab-btn {
    flex: 1;
    padding: 10px 12px;
    font-size: 0.75rem;
    font-weight: 700;
    border: none;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.25s ease;
}

.tab-btn.active {
    background: var(--bg-card);
    color: var(--accent);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.tab-content-box {
    margin-bottom: 24px;
}

.tab-badge-tag {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--accent);
    margin-bottom: 6px;
}

.tab-heading {
    font-size: 1.25rem;
    margin-bottom: 10px;
}

.tab-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.quick-spec-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: var(--bg-input);
    padding: 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.q-spec {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    font-size: 0.82rem;
}

.q-spec span { color: var(--text-muted); }
.q-spec strong {
    color: var(--text-primary);
    font-family: var(--font-mono);
    text-align: right;
    overflow-wrap: anywhere;
}

/* --------------------------------------------------------------------------
   6. ИНТЕРАКТИВНАЯ СТУДИЯ НАПРАВЛЕНИЙ
   -------------------------------------------------------------------------- */
.services-studio-section {
    background: var(--bg-alt);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.studio-wrapper {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 36px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: var(--shadow-card);
}

.studio-nav-column {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.service-nav-item {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 20px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    text-align: left;
    font-family: var(--font-sans);
}

.service-nav-item:hover, .service-nav-item.active {
    border-color: var(--accent);
    background: var(--accent-light);
    transform: translateX(4px);
}

.nav-item-num {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
}

.nav-item-text { display: flex; flex-direction: column; }

.item-title {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
}

.item-sub {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.studio-detail-column {
    display: flex;
    align-items: center;
}

.studio-panel {
    width: 100%;
}

.panel-badge {
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    color: var(--accent);
    margin-bottom: 8px;
    display: block;
}

.panel-header h3 {
    font-size: 1.7rem;
    margin-bottom: 14px;
}

.panel-lead {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.panel-specs-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 30px;
}

.spec-box {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
}

.s-title {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 600;
}

.s-val {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 4px;
    overflow-wrap: anywhere;
}

/* --------------------------------------------------------------------------
   7. ПОШАГОВЫЙ КОНСТРУКТОР ТЗ
   -------------------------------------------------------------------------- */
.wizard-container-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 36px;
    align-items: start;
}

.form-wizard-card, .preview-doc-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: var(--shadow-card);
}

.form-card-title {
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 24px;
}

.form-card-title span {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--accent);
}

.wizard-step-title {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 28px 0 16px;
    padding-bottom: 8px;
    border-bottom: 1px dashed var(--border-color);
}

.radio-select-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.custom-radio-card {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.25s ease;
}

.custom-radio-card:hover {
    border-color: var(--accent);
    background: var(--accent-light);
}

.custom-radio-card input[type="radio"] {
    accent-color: var(--accent);
    margin-top: 3px;
}

.radio-content { display: flex; flex-direction: column; }

.r-title { font-size: 0.92rem; font-weight: 700; color: var(--text-primary); }
.r-desc { font-size: 0.78rem; color: var(--text-muted); margin-top: 2px; }

.form-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.92rem;
    transition: all 0.25s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.readonly-input { background: var(--bg-alt); cursor: default; }

/* Бумажный Вид Техзадания */
.doc-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.doc-badge {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent);
}

.doc-stamp {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 8px;
    border: 1px solid var(--accent);
    color: var(--accent);
    border-radius: 2px;
}

.doc-meta-table {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 14px 18px;
    margin-bottom: 20px;
}

.doc-meta-cell {
    display: flex;
    gap: 12px;
    font-size: 0.85rem;
    margin-bottom: 6px;
}
.doc-meta-cell:last-child { margin-bottom: 0; }

.d-label { font-family: var(--font-mono); color: var(--text-muted); font-weight: 600; width: 85px; }
.d-val { font-family: var(--font-mono); color: var(--text-primary); font-weight: 600; word-break: break-all; }

.doc-content-paper {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 20px;
    margin-bottom: 24px;
    max-height: 380px;
    overflow-y: auto;
}

.doc-content-paper pre {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--text-primary);
    white-space: pre-wrap;
    line-height: 1.65;
}

.doc-action-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* --------------------------------------------------------------------------
   8. ПЕРЕНЕСЕННЫЙ КОНТЕНТ СТАРОГО САЙТА
   -------------------------------------------------------------------------- */
.catalog-grid,
.case-card-grid,
.review-gallery {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
}

.catalog-card,
.case-feature,
.case-mini-card,
.info-panel,
.review-doc-card,
.contacts-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: all 0.3s ease;
}

.catalog-card:hover,
.case-mini-card:hover,
.review-doc-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    text-decoration: none;
}

.catalog-card img,
.case-mini-card img {
    width: 100%;
    height: 230px;
    object-fit: cover;
    display: block;
    background: var(--bg-input);
}

.catalog-card-body,
.case-mini-card {
    padding: 28px;
}

.catalog-card-body h3,
.case-text h3 {
    font-size: 1.55rem;
    margin-bottom: 14px;
}

.catalog-card-body p,
.case-mini-card p,
.info-panel p,
.contacts-panel p {
    color: var(--text-secondary);
    font-size: 0.94rem;
}

.feature-list {
    list-style: none;
    margin: 18px 0 22px;
    display: grid;
    gap: 9px;
}

.feature-list.two-column {
    grid-template-columns: 1fr 1fr;
}

.feature-list li {
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding-left: 20px;
    position: relative;
}

.feature-list li::before {
    content: '';
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
    position: absolute;
    left: 0;
    top: 0.65em;
    box-shadow: 0 0 10px rgba(212, 175, 55, 0.4);
}

.text-link {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.case-layout {
    display: grid;
    gap: 30px;
}

.case-feature {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 28px;
    padding: 34px;
}

.case-text {
    align-self: center;
}

.before-after-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.before-after-grid figure {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.before-after-grid img {
    width: 100%;
    height: 170px;
    display: block;
    object-fit: cover;
}

.before-after-grid figcaption {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--accent);
    padding: 10px 12px;
    text-transform: uppercase;
}

.case-mini-card h4,
.info-panel h2 {
    margin: 8px 0 12px;
}

.split-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
}

.info-panel {
    padding: 34px;
}

.surface-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-top: 24px;
}

.surface-gallery img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.vietnam-story-card {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 28px;
    padding: 34px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
}

.vietnam-story-text h3 {
    font-size: 1.75rem;
    margin: 14px 0 16px;
}

.vietnam-story-text p {
    color: var(--text-secondary);
    margin-bottom: 14px;
}

.vietnam-facts {
    display: grid;
    gap: 12px;
    margin-top: 24px;
}

.vietnam-facts div {
    padding: 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
}

.vietnam-facts strong {
    display: block;
    font-family: var(--font-serif);
    font-size: 1.6rem;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 6px;
}

.vietnam-facts span {
    display: block;
    color: var(--text-secondary);
    font-size: 0.86rem;
}

.vietnam-media-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.vietnam-media-grid figure {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.vietnam-media-grid figure:first-child {
    grid-column: span 2;
}

.vietnam-media-grid img {
    width: 100%;
    height: 210px;
    display: block;
    object-fit: cover;
}

.vietnam-media-grid figure:first-child img {
    height: 280px;
}

.vietnam-media-grid figcaption {
    padding: 11px 13px;
    color: var(--text-secondary);
    font-size: 0.82rem;
}

.vietnam-video-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 28px;
}

.video-frame {
    position: relative;
    aspect-ratio: 16 / 9;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.video-frame iframe {
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
}

.review-gallery {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.review-doc-card {
    display: flex;
    min-height: 330px;
    color: var(--text-primary);
    flex-direction: column;
}

.review-doc-card img {
    width: 100%;
    height: 270px;
    display: block;
    object-fit: cover;
    object-position: top center;
    background: var(--bg-input);
}

.review-doc-card span {
    font-family: var(--font-mono);
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--accent);
    padding: 16px 18px;
    text-transform: uppercase;
}

.publication-feature {
    display: grid;
    grid-template-columns: minmax(260px, 380px) 1fr;
    gap: 34px;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: 24px;
    margin-bottom: 34px;
}

.publication-cover {
    display: block;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--border-color);
    background: var(--bg-input);
}

.publication-cover img {
    width: 100%;
    height: 480px;
    object-fit: cover;
    object-position: top center;
    display: block;
}

.publication-copy h3 {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3vw, 3rem);
    color: var(--text-primary);
    margin: 12px 0 16px;
    line-height: 1.05;
}

.publication-copy p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.75;
    max-width: 660px;
    margin-bottom: 24px;
}

.publication-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.publication-pages {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.publication-page {
    display: block;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    box-shadow: var(--shadow-card);
    transition: all 0.3s ease;
}

.publication-page:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.publication-page img {
    width: 100%;
    height: 340px;
    object-fit: cover;
    object-position: top center;
    display: block;
}

.legacy-archive-page {
    background: var(--bg-main);
}

.legacy-archive-nav {
    overflow-y: auto;
    padding-top: calc(var(--header-height) + 24px);
}

.legacy-archive-nav a {
    min-height: 42px;
}

.legacy-archive-hero {
    min-height: 68vh;
    display: flex;
    align-items: center;
}

.legacy-pages-stack {
    display: grid;
    gap: 34px;
}

.legacy-index {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 34px;
}

.legacy-index a {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 52px;
    padding: 12px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 0.84rem;
    font-weight: 700;
}

.legacy-index a:hover {
    border-color: var(--accent);
    color: var(--accent);
    text-decoration: none;
}

.legacy-index span {
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 0.72rem;
}

.legacy-page-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: 30px;
    overflow: hidden;
}

.legacy-page-heading {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 18px;
    margin-bottom: 24px;
}

.legacy-page-heading h2,
.legacy-page-heading h3 {
    font-family: var(--font-display);
    font-size: clamp(1.65rem, 3vw, 2.6rem);
    line-height: 1.08;
    color: var(--text-primary);
    margin: 10px 0 0;
}

.legacy-page-content {
    color: var(--text-secondary);
    line-height: 1.75;
}

.legacy-page-content p {
    margin: 0 0 18px;
}

.legacy-page-content b,
.legacy-page-content strong {
    color: var(--text-primary);
}

.legacy-page-content a {
    color: var(--accent);
    font-weight: 700;
    text-decoration: underline;
    text-underline-offset: 4px;
}

.legacy-page-content img {
    max-width: 100%;
    height: auto;
    display: inline-block;
    vertical-align: top;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-input);
    margin: 8px;
}

.legacy-page-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 18px 0;
    color: var(--text-secondary);
}

.legacy-page-content td,
.legacy-page-content th {
    border: 1px solid var(--border-color);
    padding: 10px;
    vertical-align: top;
}

.legacy-video {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    margin: 18px 0;
    overflow: hidden;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-input);
}

.legacy-video iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.migrated-materials {
    width: min(100%, 1120px);
    margin: 42px auto 0;
    border-top: 1px solid var(--border-color);
}

.migrated-page {
    border-bottom: 1px solid var(--border-color);
}

.migrated-page summary {
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr) 28px;
    align-items: center;
    gap: 14px;
    min-height: 72px;
    padding: 16px 4px;
    color: var(--text-primary);
    font-family: var(--font-display);
    font-size: clamp(1.05rem, 2vw, 1.45rem);
    font-weight: 700;
    line-height: 1.25;
    cursor: pointer;
    list-style: none;
}

.migrated-page summary::-webkit-details-marker {
    display: none;
}

.migrated-page summary:hover {
    color: var(--accent);
}

.migrated-page-index {
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 0.72rem;
}

.migrated-page-toggle {
    display: grid;
    place-items: center;
    width: 28px;
    height: 28px;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 1.1rem;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.migrated-page[open] .migrated-page-toggle {
    transform: rotate(45deg);
    border-color: var(--accent);
}

.migrated-page > .legacy-page-content {
    padding: 4px 46px 30px 52px;
}

.standalone-legacy-section {
    padding-top: 110px;
}

.contacts-panel {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 32px;
    padding: 36px;
}

.contact-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 12px;
}

.contact-pill {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--accent-light);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 700;
    padding: 12px 16px;
    white-space: nowrap;
}

.contact-pill:hover {
    border-color: var(--accent);
    text-decoration: none;
}

/* --------------------------------------------------------------------------
   9. ПРЕЗЕТЫ И FAQ
   -------------------------------------------------------------------------- */
.preset-cards-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
}

.preset-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-card);
    transition: all 0.3s ease;
}

.preset-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.preset-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--accent);
    display: block;
    margin-bottom: 8px;
}

.preset-card h4 { font-size: 1.3rem; margin-bottom: 12px; }
.preset-desc { font-size: 0.92rem; color: var(--text-secondary); margin-bottom: 24px; }
.preset-actions { display: flex; gap: 12px; }

/* FAQ Accordion */
.faq-accordion-list {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-accordion-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 20px 24px;
    box-shadow: var(--shadow-card);
    transition: all 0.3s ease;
}

.faq-accordion-item[open] { border-color: var(--accent); }

.faq-accordion-header {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-accordion-header::-webkit-details-marker { display: none; }

.faq-plus-icon { font-size: 1.2rem; color: var(--accent); transition: transform 0.3s ease; }
.faq-accordion-item[open] .faq-plus-icon { transform: rotate(45deg); }

.faq-accordion-body {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* --------------------------------------------------------------------------
   10. ФУТЕР
   -------------------------------------------------------------------------- */
.site-footer {
    background: var(--bg-alt);
    border-top: 1px solid var(--border-color);
    padding-top: 60px;
}

.footer-gold-line {
    height: 3px;
    background: var(--accent-gold-gradient);
    width: 100%;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 50px;
    gap: 40px;
}

.f-brand-title {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    display: block;
}

.f-brand-sub {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    color: var(--accent);
    display: block;
    margin-top: 4px;
    margin-bottom: 12px;
}

.footer-desc { color: var(--text-muted); font-size: 0.88rem; max-width: 420px; }

.f-contact-head {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-muted);
    display: block;
    margin-bottom: 8px;
}

.footer-email-btn {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent);
    overflow-wrap: anywhere;
}

.footer-phone-label {
    margin-top: 20px;
}

.footer-bottom-bar {
    background: rgba(0, 0, 0, 0.25);
    border-top: 1px solid var(--border-color);
    padding: 20px 0;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   11. УВЕДОМЛЕНИЯ (TOAST)
   -------------------------------------------------------------------------- */
.toast-popup {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--text-primary);
    color: var(--bg-main);
    padding: 14px 24px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--accent);
    font-size: 0.85rem;
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    z-index: 2000;
    transition: all 0.3s ease;
}

.toast-popup.hidden {
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
}

/* --------------------------------------------------------------------------
   12. АНИМАЦИИ ПРОКРУТКИ
   -------------------------------------------------------------------------- */
.reveal {
    opacity: 0;
    transform: translateY(35px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-delay-1 { transition-delay: 0.15s; }
.reveal-delay-2 { transition-delay: 0.3s; }

/* --------------------------------------------------------------------------
   13. АДАПТИВНОСТЬ
   -------------------------------------------------------------------------- */
@media (max-width: 1100px) {
    .hero-split-grid, .studio-wrapper, .wizard-container-grid, .preset-cards-grid,
    .catalog-grid, .case-feature, .split-info-grid, .contacts-panel,
    .vietnam-story-card, .vietnam-video-grid, .publication-feature {
        grid-template-columns: 1fr;
    }
    .case-card-grid, .review-gallery, .publication-pages, .legacy-index {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .publication-cover img {
        height: 420px;
    }
    .contact-actions {
        justify-content: flex-start;
    }
    .hero-main-heading { font-size: 2.4rem; }
}

@media (max-width: 1180px) {
    .side-section-nav {
        top: auto;
        right: 0;
        bottom: 0;
        z-index: 1200;
        width: 100%;
        min-height: 0;
        height: auto;
        padding: 8px max(12px, env(safe-area-inset-right)) calc(8px + env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left));
        flex-direction: row;
        justify-content: flex-start;
        gap: 6px;
        overflow-x: auto;
        overscroll-behavior-x: contain;
        scrollbar-width: none;
        background: rgba(20, 17, 14, 0.98);
        border-right: 0;
        border-top: 1px solid var(--border-color);
        box-shadow: 0 -14px 35px -25px rgba(0, 0, 0, 0.95);
    }
    .side-section-nav::-webkit-scrollbar {
        display: none;
    }
    .side-section-nav a {
        display: flex;
        flex: 0 0 auto;
        gap: 7px;
        min-height: 42px;
        padding: 9px 12px;
        white-space: nowrap;
    }
    .side-section-nav a.nav-active {
        box-shadow: inset 0 -3px 0 var(--accent);
    }
    body {
        padding-bottom: 66px;
    }
}

@media (max-width: 768px) {
    html {
        scroll-padding-top: 82px;
    }
    .container {
        padding-inline: 18px;
    }

    .migrated-materials {
        margin-top: 28px;
    }

    .migrated-page summary {
        grid-template-columns: 26px minmax(0, 1fr) 26px;
        gap: 9px;
        min-height: 62px;
        padding-block: 13px;
    }

    .migrated-page > .legacy-page-content {
        padding: 2px 0 24px;
    }
    .header-inner {
        min-width: 0;
        padding: 12px 18px;
    }
    .brand-logo {
        min-width: 0;
        gap: 10px;
    }
    .brand-logo-img {
        height: 40px;
    }
    .brand-titles {
        min-width: 0;
    }
    .brand-name {
        font-size: 1rem;
    }
    .brand-tagline {
        font-size: 0.5rem;
        letter-spacing: 0.1em;
        white-space: nowrap;
    }
    .header-right {
        flex: 0 0 auto;
    }
    .email-badge {
        width: 38px;
        height: 38px;
        justify-content: center;
        padding: 0;
        border-radius: 50%;
    }
    .email-badge span {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
    }
    .asymmetric-hero {
        padding: 54px 0 58px;
    }
    .hero-split-grid {
        gap: 34px;
    }
    .heritage-pill {
        max-width: 100%;
        padding: 6px 12px;
        font-size: 0.65rem;
    }
    .hero-main-heading {
        font-size: 2.35rem;
        line-height: 1.08;
    }
    .hero-description {
        font-size: 0.98rem;
    }
    .hero-stats-row {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        align-items: start;
        gap: 10px;
    }
    .stat-number {
        font-size: 1.15rem;
    }
    .stat-caption {
        font-size: 0.66rem;
    }
    .hero-cta-group,
    .preset-actions,
    .contact-actions {
        flex-direction: column;
        align-items: stretch;
    }
    .hero-cta-group .btn,
    .preset-actions .btn,
    .contact-actions > * {
        width: 100%;
    }
    .hero-terminal-card,
    .studio-wrapper,
    .form-wizard-card,
    .preview-doc-card,
    .vietnam-story-card,
    .info-panel,
    .preset-card,
    .contacts-panel {
        padding: 22px;
        border-radius: var(--radius);
    }
    .quick-service-tabs {
        flex-direction: column;
    }
    .q-spec {
        gap: 12px;
    }
    .q-spec strong {
        text-align: right;
    }
    .section {
        padding: 58px 0;
    }
    .section-title-wrap {
        margin-bottom: 30px;
    }
    .section-title-wrap h2 {
        font-size: 1.85rem;
    }
    .gold-subtitle-tag {
        font-size: 0.66rem;
        overflow-wrap: anywhere;
    }
    .service-nav-item {
        padding: 16px;
    }
    .service-nav-item:hover,
    .service-nav-item.active {
        transform: none;
    }
    .panel-header h3,
    .vietnam-story-text h3,
    .catalog-card-body h3,
    .case-text h3 {
        font-size: 1.45rem;
    }
    .catalog-card-body,
    .case-mini-card {
        padding: 22px;
    }
    .doc-meta-cell {
        display: grid;
        gap: 2px;
    }
    .d-label {
        width: auto;
    }
    .doc-content-paper {
        padding: 14px;
    }
    .doc-content-paper pre {
        font-size: 0.74rem;
    }
    .contact-pill {
        white-space: normal;
        text-align: center;
        overflow-wrap: anywhere;
    }
    .footer-inner {
        flex-direction: column;
        padding-bottom: 36px;
    }
    .footer-left-col,
    .footer-right-col {
        width: 100%;
        min-width: 0;
    }
    .footer-right-col {
        padding-top: 8px;
        border-top: 1px solid var(--border-color);
    }
    .footer-email-btn {
        display: inline-block;
        max-width: 100%;
        font-size: 1rem;
    }
    .toast-popup {
        right: 18px;
        bottom: 82px;
        left: 18px;
        text-align: center;
    }
    .form-grid-2, .panel-specs-grid, .feature-list.two-column,
    .before-after-grid, .case-card-grid, .review-gallery,
    .vietnam-media-grid, .publication-pages, .legacy-index {
        grid-template-columns: 1fr;
    }
    .vietnam-media-grid figure:first-child {
        grid-column: auto;
    }
    .vietnam-media-grid img,
    .vietnam-media-grid figure:first-child img {
        height: 220px;
    }
    .catalog-card img,
    .case-mini-card img {
        height: 200px;
    }
    .surface-gallery {
        grid-template-columns: 1fr 1fr;
    }
    .review-doc-card img {
        height: 320px;
    }
    .publication-feature {
        padding: 18px;
    }
    .publication-cover img {
        height: 360px;
    }
    .publication-page img {
        height: 460px;
    }
    .publication-actions .btn {
        width: 100%;
        justify-content: center;
    }
    .legacy-page-card {
        padding: 18px;
    }
    .legacy-page-content {
        overflow-x: auto;
    }
    .legacy-page-content img {
        width: 100%;
        margin: 8px 0;
    }
    .stat-vertical-line { display: none; }
}

@media (max-width: 420px) {
    .brand-tagline {
        display: none;
    }
    .brand-name {
        font-size: 0.94rem;
    }
    .hero-main-heading {
        font-size: 2.15rem;
    }
    .hero-stats-row {
        grid-template-columns: 1fr;
    }
}

@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;
    }
    .reveal {
        opacity: 1;
        transform: none;
    }
}