/* ============================================
   ВЕКТОР — Дорстрой
   Industrial Construction Theme
   ============================================ */

:root {
    --color-bg: #0a0e17;
    --color-bg-light: #111827;
    --color-bg-card: #1a2234;
    --color-primary: #0f172a;
    --color-accent: #ff6600;
    --color-accent-hover: #ff8533;
    --color-text: #e2e8f0;
    --color-text-muted: #94a3b8;
    --color-text-dark: #64748b;
    --color-border: #1e293b;
    --color-border-light: #334155;

    --font-display: 'Oswald', sans-serif;
    --font-body: 'Roboto Condensed', sans-serif;
    --font-mono: 'Roboto Mono', monospace;

    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

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

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

body {
    font-family: var(--font-body);
    font-weight: 400;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Grid Overlay */
.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    background-image:
        linear-gradient(to right, rgba(255, 102, 0, 0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 102, 0, 0.03) 1px, transparent 1px);
    background-size: 100px 100px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    line-height: 1.1;
}

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

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all 0.4s var(--ease-out-expo);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(10, 14, 23, 0.95);
    backdrop-filter: blur(20px);
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--color-text);
}

.logo-arrow {
    color: var(--color-accent);
    font-size: 32px;
    font-weight: 700;
    animation: pulse-arrow 2s ease-in-out infinite;
}

@keyframes pulse-arrow {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(5px); }
}

.logo-text {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.logo-tagline {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--color-accent);
    letter-spacing: 0.2em;
    margin-left: 4px;
    opacity: 0.8;
}

.nav-menu {
    display: flex;
    gap: 40px;
    list-style: none;
}

.nav-menu a {
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-muted);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    position: relative;
    transition: color 0.3s ease;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width 0.3s var(--ease-out-expo);
}

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

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

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

.phone-link {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color 0.3s ease;
}

.phone-link:hover {
    color: var(--color-accent);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 28px;
    height: 2px;
    background: var(--color-text);
    transition: all 0.3s ease;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 14px 28px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.3s var(--ease-out-expo);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-bg);
}

.btn-primary:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(255, 102, 0, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--color-text);
    border: 2px solid var(--color-border-light);
}

.btn-outline:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn-large {
    padding: 18px 36px;
    font-size: 16px;
}

.btn-nav {
    padding: 10px 20px;
    font-size: 12px;
}

.btn-submit {
    width: 100%;
    justify-content: center;
    padding: 18px;
}

.btn-arrow {
    transition: transform 0.3s ease;
}

.btn:hover .btn-arrow {
    transform: translateX(5px);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 120px 0 80px;
}

.hero-visual {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    overflow: hidden;
}

.hero-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(to right, rgba(255, 102, 0, 0.05) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 102, 0, 0.05) 1px, transparent 1px);
    background-size: 80px 80px;
    transform: perspective(1000px) rotateX(60deg) translateY(-100px) scale(2);
    transform-origin: center top;
    opacity: 0.5;
}

.hero-line {
    position: absolute;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
    opacity: 0.3;
}

.hero-line.line-1 {
    top: 30%;
    left: -25%;
    width: 50%;
    animation: line-move 8s linear infinite;
}

.hero-line.line-2 {
    top: 50%;
    left: -10%;
    width: 40%;
    animation: line-move 10s linear infinite;
    animation-delay: -3s;
}

.hero-line.line-3 {
    top: 70%;
    left: -2.5%;
    width: 35%;
    animation: line-move 12s linear infinite;
    animation-delay: -6s;
}

@keyframes line-move {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(300%); }
}

.hero-perspective {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40%;
    perspective: 800px;
    overflow: hidden;
}

.road-stripes {
    position: absolute;
    bottom: -50%;
    left: -50%;
    right: -50%;
    height: 200%;
    background: repeating-linear-gradient(
        90deg,
        transparent,
        transparent 80px,
        rgba(255, 102, 0, 0.2) 80px,
        rgba(255, 102, 0, 0.2) 120px
    );
    transform: rotateX(70deg);
    animation: stripes-move 2s linear infinite;
}

@keyframes stripes-move {
    0% { background-position: 0 0; }
    100% { background-position: 120px 0; }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    margin-bottom: 30px;
}

.badge-text {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-accent);
    letter-spacing: 0.3em;
    padding: 8px 16px;
    border: 1px solid var(--color-accent);
    background: rgba(255, 102, 0, 0.1);
}

.hero-title {
    font-size: clamp(48px, 8vw, 96px);
    font-weight: 700;
    line-height: 0.95;
    margin-bottom: 30px;
}

.title-line {
    display: block;
    opacity: 0;
    transform: translateY(50px);
    animation: slide-up 0.8s var(--ease-out-expo) forwards;
}

.title-line:nth-child(1) { animation-delay: 0.2s; }
.title-line:nth-child(2) { animation-delay: 0.4s; }
.title-line:nth-child(3) { animation-delay: 0.6s; }

@keyframes slide-up {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.title-line.accent {
    color: var(--color-accent);
    text-shadow: 0 0 40px rgba(255, 102, 0, 0.4);
}

.hero-subtitle {
    font-family: var(--font-body);
    font-size: clamp(16px, 2vw, 20px);
    color: var(--color-text-muted);
    max-width: 600px;
    margin-bottom: 40px;
    opacity: 0;
    animation: fade-in 0.8s ease 0.8s forwards;
}

@keyframes fade-in {
    to { opacity: 1; }
}

.hero-cta {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 60px;
    opacity: 0;
    animation: fade-in 0.8s ease 1s forwards;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--color-border);
    opacity: 0;
    animation: fade-in 0.8s ease 1.2s forwards;
}

.stat-item {
    text-align: left;
}

.stat-number {
    font-family: var(--font-display);
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
}

.stat-label {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-text-dark);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-top: 8px;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
    animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.5); }
    50% { opacity: 1; transform: scaleY(1); }
}

.scroll-text {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--color-text-dark);
    letter-spacing: 0.3em;
}

/* ============================================
   SECTION HEADERS
   ============================================ */
.section-header {
    margin-bottom: 60px;
}

.section-header.dark {
    color: var(--color-text);
}

.section-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-accent);
    letter-spacing: 0.3em;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 700;
    line-height: 1.1;
}

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

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    padding: 120px 0;
    background: var(--color-bg);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border), transparent);
}

.about-grid {
    display: grid;
    gap: 80px;
}

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

.about-text .lead {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 500;
    line-height: 1.4;
    color: var(--color-text);
    margin-bottom: 24px;
}

.about-text p {
    color: var(--color-text-muted);
    margin-bottom: 20px;
    font-size: 16px;
}

.cert-badges {
    display: flex;
    gap: 24px;
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid var(--color-border);
}

.cert-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-text-muted);
}

.cert-icon {
    color: var(--color-accent);
    font-size: 14px;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.feature-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    padding: 30px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: var(--color-accent);
    transform: translateX(10px);
}

.feature-number {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-accent);
    margin-bottom: 12px;
}

.feature-card h3 {
    font-size: 18px;
    margin-bottom: 12px;
    letter-spacing: 0.1em;
}

.feature-card p {
    color: var(--color-text-muted);
    font-size: 14px;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services {
    padding: 120px 0;
    background: var(--color-bg-light);
    position: relative;
}

.services-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.service-item {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    overflow: hidden;
    transition: all 0.3s ease;
}

.service-item:hover {
    border-color: var(--color-border-light);
}

.service-item.active {
    border-color: var(--color-accent);
}

.service-header {
    display: flex;
    align-items: center;
    gap: 30px;
    padding: 30px 40px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.service-item:hover .service-header {
    background: rgba(255, 102, 0, 0.05);
}

.service-num {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--color-accent);
    width: 30px;
}

.service-title {
    flex: 1;
    font-size: 24px;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.service-toggle {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border);
    font-size: 20px;
    color: var(--color-text-muted);
    transition: all 0.3s ease;
}

.service-item.active .service-toggle {
    transform: rotate(45deg);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.service-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s var(--ease-out-expo);
}

.service-item.active .service-content {
    max-height: 400px;
}

.service-inner {
    padding: 0 40px 30px 100px;
    display: grid;
    grid-template-columns: 2fr 1fr auto;
    gap: 40px;
    align-items: start;
}

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

.service-list {
    list-style: none;
    display: grid;
    gap: 8px;
}

.service-list li {
    font-size: 14px;
    color: var(--color-text-muted);
    position: relative;
    padding-left: 16px;
}

.service-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-size: 12px;
}

.service-price {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 600;
    color: var(--color-accent);
    white-space: nowrap;
}

/* ============================================
   EQUIPMENT SECTION
   ============================================ */
.equipment {
    padding: 120px 0;
    background: var(--color-bg);
}

.equipment-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2px;
    background: var(--color-border);
    border: 1px solid var(--color-border);
}

.equipment-item {
    background: var(--color-bg-card);
    padding: 40px;
    transition: all 0.3s ease;
}

.equipment-item:hover {
    background: var(--color-bg-light);
}

.equipment-visual {
    height: 120px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.equipment-icon {
    width: 100px;
    height: 60px;
    position: relative;
    background: var(--color-border-light);
}

/* Equipment abstract shapes */
.equipment-icon.paver {
    clip-path: polygon(0% 60%, 20% 40%, 80% 40%, 100% 60%, 90% 80%, 10% 80%);
}

.equipment-icon.roller {
    border-radius: 50%;
    width: 60px;
    height: 60px;
    background: var(--color-border-light);
}

.equipment-icon.grader {
    clip-path: polygon(0% 70%, 30% 30%, 100% 30%, 100% 70%);
}

.equipment-icon.excavator {
    clip-path: polygon(20% 100%, 20% 60%, 40% 60%, 60% 40%, 80% 40%, 80% 100%);
}

.equipment-icon.truck {
    clip-path: polygon(0% 70%, 0% 40%, 60% 40%, 70% 30%, 90% 30%, 100% 40%, 100% 70%);
}

.equipment-icon.milling {
    clip-path: polygon(10% 50%, 30% 30%, 70% 30%, 90% 50%, 80% 70%, 20% 70%);
}

.equipment-icon.loader {
    clip-path: polygon(20% 80%, 20% 40%, 40% 40%, 40% 20%, 60% 20%, 60% 40%, 80% 40%, 80% 80%);
}

/* Roof placeholder pattern */
.image-placeholder.roof {
    background: linear-gradient(135deg, var(--color-bg-light) 0%, var(--color-border) 100%);
    position: relative;
}

.image-placeholder.roof::before {
    content: '▲';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 48px;
    color: var(--color-border-light);
}

.equipment-info h3 {
    font-size: 18px;
    margin-bottom: 8px;
    letter-spacing: 0.1em;
}

.equipment-count {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--color-accent);
    margin-bottom: 12px;
}

.equipment-desc {
    font-size: 14px;
    color: var(--color-text-muted);
}

/* ============================================
   PROJECTS SECTION
   ============================================ */
.projects {
    padding: 120px 0;
    background: var(--color-bg-light);
}

.projects-filter {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    padding: 12px 24px;
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: rgba(255, 102, 0, 0.1);
}

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

.project-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    overflow: hidden;
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-border-light);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.project-card.hidden {
    display: none;
}

.project-image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
}

.image-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-bg-light) 0%, var(--color-bg-card) 100%);
    position: relative;
}

/* Abstract road patterns */
.image-placeholder.road::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 40%;
    background: repeating-linear-gradient(
        90deg,
        var(--color-border),
        var(--color-border) 20px,
        transparent 20px,
        transparent 40px
    );
    transform: perspective(500px) rotateX(60deg) translateY(-50%);
}

.image-placeholder.bridge {
    background: linear-gradient(180deg, var(--color-bg-light) 50%, var(--color-accent) 50%);
    clip-path: polygon(0% 60%, 20% 40%, 80% 40%, 100% 60%, 100% 100%, 0% 100%);
}

.image-placeholder.urban::before {
    content: '|||';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: var(--font-mono);
    font-size: 48px;
    color: var(--color-border-light);
    letter-spacing: 20px;
}

.project-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-bg);
    background: var(--color-accent);
    padding: 6px 12px;
}

.project-info {
    padding: 24px;
}

.project-category {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

.project-info h3 {
    font-size: 18px;
    margin: 12px 0;
    letter-spacing: 0.05em;
}

.project-info p {
    font-size: 14px;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.project-stats {
    display: flex;
    gap: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
}

.project-stats span {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-text-dark);
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    padding: 120px 0;
    background: var(--color-bg);
    position: relative;
}

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

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
}

.contact-info .section-title {
    margin-bottom: 24px;
}

.contact-lead {
    font-size: 18px;
    color: var(--color-text-muted);
    margin-bottom: 48px;
}

.contact-details {
    display: grid;
    gap: 24px;
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.contact-label {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-text-dark);
    letter-spacing: 0.2em;
}

.contact-value {
    font-family: var(--font-display);
    font-size: 18px;
    color: var(--color-text);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-value:hover {
    color: var(--color-accent);
}

.contact-form {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    padding: 48px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--color-text);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    padding: 16px;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    background: var(--color-bg-light);
}

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

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
}

.form-group select option {
    background: var(--color-bg);
    color: var(--color-text);
}

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

.form-note {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--color-text-dark);
    text-align: center;
    margin-top: 20px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    padding: 80px 0 40px;
    background: var(--color-bg-light);
    border-top: 1px solid var(--color-border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand p {
    color: var(--color-text-muted);
    font-size: 14px;
    max-width: 300px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-col h4 {
    font-family: var(--font-display);
    font-size: 12px;
    font-weight: 600;
    color: var(--color-text);
    letter-spacing: 0.15em;
    margin-bottom: 20px;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 12px;
}

.footer-col a {
    font-size: 14px;
    color: var(--color-text-muted);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid var(--color-border);
}

.footer-bottom p {
    font-size: 12px;
    color: var(--color-text-dark);
}

.footer-docs {
    display: flex;
    gap: 30px;
}

.footer-docs a {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-text-dark);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }

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

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

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: var(--color-bg);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 30px;
        transition: right 0.4s var(--ease-out-expo);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu a {
        font-size: 24px;
    }

    .nav-cta {
        display: none;
    }

    .nav-toggle {
        display: flex;
        z-index: 1001;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

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

    .service-inner {
        grid-template-columns: 1fr;
        padding: 20px;
    }

    .service-header {
        padding: 20px;
    }

    .projects-grid,
    .equipment-grid {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

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

    .contact-form {
        padding: 30px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 36px;
    }

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

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

    .hero-stats {
        grid-template-columns: 1fr 1fr;
    }

    .stat-number {
        font-size: 28px;
    }

    .service-title {
        font-size: 18px;
    }
}

/* ============================================
   ANIMATION UTILITIES
   ============================================ */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s var(--ease-out-expo);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }