/* ==========================================================================
   НПК МСА — Модульные защитные сооружения гражданской обороны
   ========================================================================== */

:root {
    --color-bg: #fbf8f3;
    --color-surface: #ffffff;
    --color-surface-muted: #f4eee4;
    --color-surface-strong: #eee2d1;
    --color-bg-dark: #1f1915;
    --color-accent: #d5661d;
    --color-accent-light: #eb8438;
    --color-accent-dark: #9f4312;
    --color-accent-glow: rgba(213, 102, 29, 0.12);
    --color-text: #191511;
    --color-text-secondary: #5f564d;
    --color-text-muted: #8d8378;
    --color-border: #e7ddcf;
    --color-border-strong: #d9cab3;
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 28px;
    --radius-xl: 40px;
    --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --font-body: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Oswald', 'Arial Narrow', sans-serif;
    --gradient-accent: linear-gradient(135deg, #f29a53 0%, #d5661d 55%, #a64814 100%);
    --shadow-soft: 0 20px 60px rgba(89, 61, 28, 0.08);
    --shadow-card: 0 12px 30px rgba(89, 61, 28, 0.06);
    --shadow-lift: 0 26px 70px rgba(89, 61, 28, 0.12);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background:
        radial-gradient(circle at top right, rgba(213, 102, 29, 0.08), transparent 30%),
        linear-gradient(180deg, #fffdfa 0%, var(--color-bg) 52%, #fffdfa 100%);
    color: var(--color-text);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
}

a {
    color: inherit;
}

.container {
    max-width: 1340px;
    margin: 0 auto;
    padding: 0 40px;
}

/* ==========================================================================
   Header
   ========================================================================== */

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 20px 0;
    background: rgba(255, 253, 249, 0.82);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid transparent;
    z-index: 1000;
    transition: var(--transition);
}

header.scrolled {
    padding: 12px 0;
    border-bottom-color: rgba(217, 202, 179, 0.8);
    box-shadow: 0 8px 30px rgba(89, 61, 28, 0.07);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-decoration: none;
}

.logo span {
    color: var(--color-accent);
}

nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

nav a {
    position: relative;
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 10px 14px;
    border-radius: 999px;
    transition: var(--transition);
    white-space: nowrap;
}

nav a:hover,
nav a.active {
    color: var(--color-text);
    background: rgba(213, 102, 29, 0.08);
}

nav a.active::after {
    content: '';
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 6px;
    height: 2px;
    border-radius: 999px;
    background: var(--gradient-accent);
}

.nav-cta-group {
    margin-left: 10px;
}

.nav-cta-left {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 18px !important;
    background: var(--color-accent);
    color: #fff !important;
    border-radius: 999px !important;
    border: 1px solid rgba(159, 67, 18, 0.22);
    box-shadow: 0 10px 24px rgba(213, 102, 29, 0.22);
    text-shadow: 0 1px 0 rgba(0, 0, 0, 0.08);
}

.nav-cta-left:hover {
    background: var(--color-accent-dark);
    transform: translateY(-1px);
    box-shadow: 0 14px 30px rgba(213, 102, 29, 0.3);
}

.nav-cta-left::after {
    display: none !important;
}

.mobile-menu-btn {
    display: none;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    font-size: 22px;
    border-radius: 14px;
    width: 44px;
    height: 44px;
    cursor: pointer;
}

/* ==========================================================================
   Shared
   ========================================================================== */

section {
    position: relative;
    padding: 112px 0;
}

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

.section-header {
    max-width: 980px;
    margin-bottom: 56px;
}

.section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
    color: var(--color-accent);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.26em;
    text-transform: uppercase;
}

.section-eyebrow::before {
    content: '';
    width: 36px;
    height: 2px;
    border-radius: 999px;
    background: var(--gradient-accent);
}

.section-title {
    font-family: var(--font-heading);
    font-size: 46px;
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.section-title span {
    color: var(--color-accent);
}

.section-subtitle {
    margin-top: 16px;
    color: var(--color-text-secondary);
    font-size: 18px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.section-copy {
    max-width: 760px;
    margin-top: 18px;
    color: var(--color-text-secondary);
    font-size: 17px;
    line-height: 1.75;
}

.muted {
    color: var(--color-text-muted);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 28px;
    border-radius: 999px;
    border: 1px solid transparent;
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-decoration: none;
    text-transform: uppercase;
    transition: var(--transition);
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-accent);
    color: #fff;
    box-shadow: 0 14px 30px rgba(213, 102, 29, 0.22);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 36px rgba(213, 102, 29, 0.28);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.85);
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: #fff;
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
    min-height: 100vh;
    padding: 148px 0 88px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: -140px;
    right: -160px;
    width: 720px;
    height: 720px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(213, 102, 29, 0.16) 0%, rgba(213, 102, 29, 0.04) 40%, transparent 72%);
}

.hero-bg::after {
    content: '';
    position: absolute;
    left: -120px;
    bottom: -180px;
    width: 540px;
    height: 540px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(180, 150, 108, 0.16) 0%, transparent 72%);
}

.hero-grid-lines {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(213, 102, 29, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(213, 102, 29, 0.045) 1px, transparent 1px);
    background-size: 72px 72px;
    mask-image: radial-gradient(circle at center, black 40%, transparent 90%);
}

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

.hero-visual {
    padding: 0;
    border-radius: 40px 40px 0 0;
    overflow: hidden;
    box-shadow: var(--shadow-lift);
    background: #fff;
}

.hero-visual img {
    width: 100%;
    aspect-ratio: 1.78 / 1;
    object-fit: cover;
    object-position: center top;
}

.hero-panel {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
    gap: 28px;
    align-items: end;
    padding: 34px 38px 18px;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(217, 202, 179, 0.92);
    border-top: none;
    border-radius: 0 0 40px 40px;
    box-shadow: var(--shadow-lift);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 26px;
    padding: 10px 18px;
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    color: var(--color-text-secondary);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-accent);
    box-shadow: 0 0 0 8px rgba(213, 102, 29, 0.12);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.55;
        transform: scale(1.22);
    }
}

.hero h1 {
    max-width: 760px;
    font-family: var(--font-heading);
    font-size: 76px;
    font-weight: 700;
    line-height: 0.92;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.hero h1 span {
    display: block;
    color: var(--color-accent);
}

.hero-copy {
    padding-right: 18px;
}

.hero-aside {
    display: flex;
    flex-direction: column;
    gap: 22px;
}

.hero p {
    color: var(--color-text-secondary);
    font-size: 16px;
    line-height: 1.85;
}

.hero-buttons {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.hero-facts {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.hero-fact {
    padding: 18px 18px 16px;
    background: linear-gradient(180deg, rgba(255, 250, 245, 0.98) 0%, rgba(248, 241, 232, 0.92) 100%);
    border: 1px solid rgba(217, 202, 179, 0.72);
    border-radius: 22px;
    box-shadow: var(--shadow-card);
}

.hero-fact strong {
    display: block;
    margin-bottom: 4px;
    font-family: var(--font-heading);
    font-size: 34px;
    line-height: 1;
    letter-spacing: 0.03em;
    color: var(--color-accent);
}

.hero-fact span {
    display: block;
    color: var(--color-text-secondary);
    font-size: 12px;
    font-weight: 700;
    line-height: 1.5;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* ==========================================================================
   About
   ========================================================================== */

.about {
    background: linear-gradient(180deg, rgba(244, 238, 228, 0.35) 0%, rgba(244, 238, 228, 0.9) 100%);
}

.about .section-title {
    max-width: 1040px;
}

.about-bvu {
    max-width: 1060px;
    margin-bottom: 38px;
    padding: 40px 42px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
}

.about-bvu h3 {
    margin-bottom: 18px;
    font-family: var(--font-heading);
    font-size: 28px;
    line-height: 1;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.about-bvu-text {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
}

.about-bvu p {
    color: var(--color-text-secondary);
    font-size: 16px;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.about-feature-card {
    position: relative;
    height: 100%;
    padding: 34px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: var(--transition);
}

.about-feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    background: var(--gradient-accent);
}

.about-feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lift);
}

.about-feature-icon {
    width: 76px;
    height: 76px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-feature-icon svg,
.service-icon svg,
.eq-note svg,
.eq-feature-item svg {
    width: 24px;
    height: 24px;
    stroke: currentColor;
    stroke-width: 1.6;
    fill: none;
}

.doc-icon-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.about-feature-card h4 {
    margin-bottom: 12px;
    font-family: var(--font-heading);
    font-size: 22px;
    line-height: 1.1;
    text-transform: uppercase;
}

.about-feature-card p {
    color: var(--color-text-secondary);
    font-size: 15px;
}

.about-feature-card .muted {
    display: block;
    margin-top: 10px;
    font-size: 14px;
}

/* ==========================================================================
   Production
   ========================================================================== */

.production-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
    margin-bottom: 56px;
}

.production-photo,
.production-modules {
    padding: 18px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-soft);
}

.production-photo img,
.production-modules img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: 26px;
}

.production-photo-caption {
    position: static;
    margin-top: 18px;
    padding: 0 6px;
    background: none;
    color: var(--color-text-secondary);
    font-size: 15px;
    line-height: 1.75;
}

.production-advantages h3 {
    max-width: 860px;
    margin-bottom: 28px;
    font-family: var(--font-heading);
    font-size: 34px;
    line-height: 1.05;
    text-transform: uppercase;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
}

.advantage-card {
    height: 100%;
    padding: 28px 24px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.94) 0%, rgba(248, 243, 236, 0.95) 100%);
    border: 1px solid var(--color-border);
    border-radius: 24px;
    box-shadow: var(--shadow-card);
    transition: var(--transition);
}

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

.advantage-number {
    margin-bottom: 16px;
    font-family: var(--font-heading);
    font-size: 54px;
    line-height: 1;
    color: var(--color-accent);
}

.advantage-card p {
    color: var(--color-text-secondary);
    font-size: 15px;
}

/* ==========================================================================
   Services
   ========================================================================== */

.services {
    background: linear-gradient(180deg, rgba(244, 238, 228, 0.45) 0%, rgba(255, 253, 249, 1) 100%);
}

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

.service-card {
    height: 100%;
    padding: 28px 24px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 24px;
    box-shadow: var(--shadow-card);
    text-align: left;
    transition: var(--transition);
}

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

.service-icon {
    width: 76px;
    height: 76px;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-card span {
    display: block;
    color: var(--color-text);
    font-size: 14px;
    font-weight: 700;
    line-height: 1.65;
}

/* ==========================================================================
   Equipment Overview
   ========================================================================== */

.equipment-overview {
    background: linear-gradient(180deg, rgba(255, 253, 249, 1) 0%, rgba(244, 238, 228, 0.52) 100%);
}

.equipment-hero-img {
    margin-bottom: 38px;
    padding: 18px;
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lift);
}

.equipment-hero-img img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: contain;
    border-radius: 26px;
    background: #fff;
}

.equipment-preview-caption {
    margin-top: 16px;
    padding: 0 6px 2px;
    color: var(--color-text-secondary);
    font-size: 14px;
    line-height: 1.7;
}

.components-overview {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 18px;
}

.component-thumb {
    appearance: none;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: stretch;
    gap: 14px;
    min-height: 220px;
    padding: 16px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--color-border);
    border-radius: 24px;
    box-shadow: var(--shadow-card);
    transition: var(--transition);
    cursor: pointer;
    text-align: left;
}

.component-thumb:hover,
.component-thumb.active {
    transform: translateY(-4px);
    box-shadow: var(--shadow-soft);
    border-color: rgba(213, 102, 29, 0.55);
}

.component-thumb img {
    width: 100%;
    height: 126px;
    object-fit: contain;
    padding: 12px;
    border-radius: 18px;
    background: #fff;
}

.component-thumb span {
    display: block;
    color: var(--color-text);
    font-size: 12px;
    font-weight: 800;
    line-height: 1.45;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* ==========================================================================
   Equipment Detail
   ========================================================================== */

.eq-detail {
    padding: 90px 0;
}

.eq-detail.eq-alt {
    background: linear-gradient(180deg, rgba(244, 238, 228, 0.35) 0%, rgba(255, 253, 249, 1) 100%);
}

.eq-detail-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
    align-items: center;
}

.eq-detail-grid-reverse {
    direction: rtl;
}

.eq-detail-grid-reverse > * {
    direction: ltr;
}

.eq-detail-content {
    padding: 38px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-soft);
}

.eq-detail-content h2 {
    margin-bottom: 24px;
    font-family: var(--font-heading);
    font-size: 34px;
    line-height: 1.05;
    text-transform: uppercase;
}

.eq-section-label {
    margin-top: 22px;
    margin-bottom: 10px;
    color: var(--color-accent);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.eq-section-label:first-of-type {
    margin-top: 0;
}

.eq-detail-content p {
    color: var(--color-text-secondary);
    font-size: 15px;
    margin-bottom: 10px;
}

.eq-detail-content ul {
    list-style: none;
    margin-bottom: 10px;
}

.eq-detail-content li {
    position: relative;
    padding-left: 18px;
    margin-bottom: 8px;
    color: var(--color-text-secondary);
    font-size: 15px;
}

.eq-detail-content li::before {
    content: '';
    position: absolute;
    top: 11px;
    left: 0;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--color-accent);
}

.eq-note {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    margin-top: 16px;
    padding: 14px 16px;
    background: rgba(213, 102, 29, 0.08);
    border: 1px solid rgba(213, 102, 29, 0.12);
    border-radius: 18px;
    color: var(--color-text-secondary);
}

.eq-note svg,
.eq-feature-item svg {
    flex-shrink: 0;
    margin-top: 2px;
    color: var(--color-accent);
}

.eq-doc-icon {
    width: 54px;
    height: 54px;
    flex-shrink: 0;
    object-fit: contain;
    display: block;
}

.eq-note span,
.eq-feature-item span {
    font-size: 14px;
    line-height: 1.65;
}

.eq-detail-image {
    padding: 18px;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-soft);
}

.eq-detail-image > img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: contain;
    padding: 20px;
    border-radius: 24px;
    background: #fff;
    border: 1px solid rgba(231, 221, 207, 0.9);
}

.eq-detail-image-stacked,
.eq-detail-image-row,
.eq-detail-image-quad {
    display: grid;
    gap: 16px;
}

.eq-detail-image-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.eq-detail-image-quad {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.eq-detail-image-stacked img,
.eq-detail-image-row img,
.eq-detail-image-quad img {
    width: 100%;
    height: 100%;
    min-height: 210px;
    object-fit: contain;
    padding: 16px;
    border-radius: 24px;
    background: #fff;
    border: 1px solid rgba(231, 221, 207, 0.9);
}

.eq-detail-image-row img {
    aspect-ratio: 3 / 4;
}

.eq-detail-image-stacked img {
    aspect-ratio: 4 / 3;
}

.eq-detail-image-quad img {
    aspect-ratio: 1 / 1;
}

.eq-features-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-top: 16px;
}

.eq-feature-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 14px 16px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 18px;
}

.eq-note-doc {
    background: rgba(255, 255, 255, 0.9);
    border-color: var(--color-border);
}

/* ==========================================================================
   Gallery
   ========================================================================== */

.gallery {
    background: #fffdfa;
}

.gallery-full {
    padding: 18px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lift);
}

.gallery-full img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    border-radius: 26px;
}

.gallery-caption {
    position: static;
    padding: 20px 8px 4px;
    background: none;
    color: var(--color-text);
    font-family: var(--font-heading);
    font-size: 28px;
    line-height: 1.05;
    text-transform: uppercase;
}

/* ==========================================================================
   Demand
   ========================================================================== */

.demand {
    background: linear-gradient(180deg, rgba(244, 238, 228, 0.5) 0%, rgba(255, 255, 255, 1) 100%);
}

.demand-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.demand-card {
    height: 100%;
    padding: 30px 28px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 28px;
    box-shadow: var(--shadow-card);
}

.demand-card-index {
    margin-bottom: 18px;
    font-family: var(--font-heading);
    font-size: 54px;
    line-height: 1;
    color: var(--color-accent);
}

.demand-card h3 {
    margin-bottom: 10px;
    font-family: var(--font-heading);
    font-size: 26px;
    line-height: 1.05;
    text-transform: uppercase;
}

.demand-card p {
    color: var(--color-text-secondary);
    font-size: 15px;
}

.demand-highlight {
    margin-top: 24px;
    padding: 22px 24px;
    background: linear-gradient(135deg, rgba(242, 154, 83, 0.16) 0%, rgba(213, 102, 29, 0.08) 100%);
    border: 1px solid rgba(213, 102, 29, 0.15);
    border-radius: 24px;
    color: var(--color-text);
    font-size: 17px;
    font-weight: 700;
    line-height: 1.7;
}

/* ==========================================================================
   Contact
   ========================================================================== */

.contact {
    padding-top: 90px;
}

.contact-content {
    max-width: 900px;
    padding: 48px;
    background:
        radial-gradient(circle at top right, rgba(213, 102, 29, 0.12), transparent 32%),
        var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lift);
}

.contact h2 {
    margin-bottom: 14px;
    font-family: var(--font-heading);
    font-size: 48px;
    line-height: 1;
    text-transform: uppercase;
}

.contact p {
    max-width: 680px;
    color: var(--color-text-secondary);
    font-size: 18px;
}

/* ==========================================================================
   Footer
   ========================================================================== */

footer {
    padding: 34px 0 50px;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}

.footer-copyright {
    color: var(--color-text-muted);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-decoration: none;
    text-align: center;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1180px) {
    .container {
        padding: 0 28px;
    }

    .production-row,
    .eq-detail-grid,
    .eq-detail-grid-reverse {
        grid-template-columns: 1fr;
        direction: ltr;
    }

    .hero {
        min-height: auto;
    }

    .hero-panel {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: 28px 28px 20px;
    }

    .hero h1 {
        font-size: 58px;
    }

    .about-features,
    .demand-grid {
        grid-template-columns: 1fr;
    }

    .advantages-grid,
    .services-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

@media (max-width: 980px) {
    header {
        padding: 14px 0;
    }

    .mobile-menu-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    nav {
        display: none;
        position: absolute;
        top: calc(100% + 10px);
        left: 20px;
        right: 20px;
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
        padding: 18px;
        background: rgba(255, 253, 249, 0.98);
        border: 1px solid var(--color-border);
        border-radius: 24px;
        box-shadow: var(--shadow-soft);
    }

    nav.active {
        display: flex;
    }

    .nav-cta-group {
        margin: 8px 0 0;
    }

    .nav-cta-left {
        width: 100%;
        min-height: 48px;
        background: var(--color-accent) !important;
        color: #fff !important;
        box-shadow: 0 12px 26px rgba(213, 102, 29, 0.28);
    }

    .section-title {
        font-size: 38px;
    }

    .hero-facts,
    .eq-features-row {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        border-radius: 30px 30px 0 0;
    }

    .hero-panel {
        border-radius: 0 0 30px 30px;
    }

    .components-overview {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 720px) {
    .container {
        padding: 0 20px;
    }

    section {
        padding: 74px 0;
    }

    .hero {
        padding: 126px 0 72px;
    }

    .hero-badge {
        max-width: 100%;
        gap: 8px;
        padding: 10px 14px;
        font-size: 11px;
        line-height: 1.35;
        letter-spacing: 0.05em;
        white-space: normal;
    }

    .hero-badge-dot {
        width: 7px;
        height: 7px;
        box-shadow: 0 0 0 6px rgba(213, 102, 29, 0.1);
        flex-shrink: 0;
    }

    .hero h1 {
        font-size: 42px;
    }

    .hero p,
    .section-copy,
    .contact p {
        font-size: 16px;
    }

    .hero-visual img {
        aspect-ratio: 1.18 / 1;
    }

    .hero-panel {
        padding: 24px 20px 18px;
    }

    .hero-copy {
        padding-right: 0;
    }

    .section-title,
    .contact h2 {
        font-size: 30px;
    }

    .about-bvu,
    .eq-detail-content,
    .contact-content {
        padding: 28px 24px;
    }

    .about-bvu-text,
    .advantages-grid,
    .services-grid,
    .components-overview,
    .eq-detail-image-row,
    .eq-detail-image-quad {
        grid-template-columns: 1fr;
    }

    .component-thumb {
        min-height: 0;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .gallery-caption {
        font-size: 22px;
    }

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