@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;600;700;800;900&display=swap');

/* --- DESIGN SYSTEM TOKENS --- */
:root {
    /* Color Palette */
    --bg-dark-950: #010924;
    --bg-dark-900: #06174A;
    --bg-dark-800: #0A2780;
    --bg-dark-700: #10339c;
    
    --primary: #00f0ff;
    --primary-glow: rgba(0, 240, 255, 0.35);
    --secondary: #3b82f6;
    --secondary-glow: rgba(59, 130, 246, 0.35);
    --accent: #8b5cf6;
    --accent-glow: rgba(139, 92, 246, 0.35);
    
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    
    /* Layout Tokens */
    --max-width: 1200px;
    --header-height: 80px;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --border-glass: 1px solid rgba(255, 255, 255, 0.05);
    --bg-glass: rgba(6, 23, 74, 0.6);
    
    /* Fonts */
    --font-heading: 'Outfit', 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- BASE STYLES --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-dark-950);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Blueprint Grid Background Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(rgba(0, 240, 255, 0.018) 1.5px, transparent 1.5px),
        radial-gradient(rgba(139, 92, 246, 0.012) 1.5px, transparent 1.5px);
    background-size: 40px 40px;
    background-position: 0 0, 20px 20px;
    z-index: -3;
    pointer-events: none;
}

/* Aurora Glowing Orbs Background */
.aurora-orbs {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
    z-index: -2;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(140px);
    -webkit-filter: blur(140px);
    opacity: 0.18;
    mix-blend-mode: screen;
    pointer-events: none;
    animation: orbFloat 25s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    top: 5vh;
    left: -15vw;
    animation-duration: 22s;
}

.orb-2 {
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
    top: 30vh;
    right: -20vw;
    animation-duration: 28s;
    animation-delay: -5s;
}

.orb-3 {
    width: 650px;
    height: 650px;
    background: radial-gradient(circle, var(--secondary) 0%, transparent 70%);
    top: 55vh;
    left: -10vw;
    animation-duration: 25s;
    animation-delay: -10s;
}

.orb-4 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    top: 80vh;
    right: -10vw;
    animation-duration: 24s;
    animation-delay: -12s;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(40px, -60px) scale(1.1); }
    66% { transform: translate(-30px, 45px) scale(0.9); }
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

ul {
    list-style: none;
}

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

button {
    font-family: var(--font-body);
    cursor: pointer;
    border: none;
    background: none;
    outline: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-dark-950);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-dark-700);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* --- REUSABLE UTILITIES & EFFECTS --- */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

.text-gradient {
    background: linear-gradient(135deg, #ffffff 30%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-cyan {
    color: var(--primary);
}

.section-divider {
    height: 1px;
    width: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 240, 255, 0.12) 50%, transparent);
    position: relative;
    z-index: 10;
}

.section-divider::after {
    content: '';
    position: absolute;
    top: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 70px;
    height: 3px;
    background: var(--primary);
    box-shadow: 0 0 12px var(--primary);
    border-radius: 5px;
}

.glow-btn {
    position: relative;
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--bg-dark-950);
    font-weight: 700;
    font-size: 0.95rem;
    border-radius: var(--border-radius-sm);
    box-shadow: 0 0 15px var(--primary-glow);
    transition: var(--transition-smooth);
    overflow: hidden;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.glow-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--secondary), var(--accent));
    opacity: 0;
    transition: var(--transition-smooth);
    z-index: -1;
}

.glow-btn:hover {
    color: #ffffff;
    box-shadow: 0 0 25px var(--primary-glow), 0 0 10px var(--secondary-glow);
    transform: translateY(-2px);
}

.glow-btn:hover::before {
    opacity: 1;
}

.sec-btn {
    padding: 14px 28px;
    background: transparent;
    color: #ffffff;
    border: 1px solid var(--primary);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--border-radius-sm);
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.sec-btn:hover {
    background: rgba(0, 240, 255, 0.05);
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.15) inset;
    transform: translateY(-2px);
}

.glass-card {
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: var(--border-glass);
    border-radius: var(--border-radius-md);
    padding: 32px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: var(--transition-smooth);
}

.glass-card:hover {
    border-color: rgba(0, 240, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 240, 255, 0.05);
}

.section-padding {
    padding: 100px 0;
}

.section-title-wrap {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 12px;
    display: block;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
}

/* Animations Trigger Classes */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

/* --- HEADER / NAVIGATION --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(1, 9, 36, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    z-index: 100;
    transition: var(--transition-smooth);
}

.header.scrolled {
    height: 70px;
    background: rgba(1, 9, 36, 0.95);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.header .container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-link {
    display: flex;
    align-items: center;
    height: 50px;
}

.logo-img {
    height: 100%;
    width: auto;
}

.nav {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-list {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--primary);
}

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

.nav-contacts {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 24px;
}

.phone-link {
    font-size: 0.95rem;
    font-weight: 700;
    font-family: var(--font-heading);
    display: flex;
    align-items: center;
    gap: 6px;
}

.phone-link svg {
    color: var(--primary);
}

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

/* Mobile Nav Toggles */
.menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    z-index: 101;
}

.menu-btn span {
    width: 100%;
    height: 2px;
    background: #ffffff;
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* --- HERO SECTION --- */
.hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.55; /* Balances contrast between the dots wave and the foreground text */
    background: linear-gradient(180deg, rgba(1, 9, 36, 0.1) 0%, rgba(1, 9, 36, 0.95) 100%), url('../images/hero_bg.webp') center/cover no-repeat;
}

.hero-grid-overlay {
    position: absolute;
    width: 150%;
    height: 150%;
    background-image: 
        linear-gradient(rgba(0, 240, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 255, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
    transform: perspective(500px) rotateX(60deg) translateY(-20%);
    top: 0;
    left: -25%;
    mask-image: radial-gradient(circle, rgba(0,0,0,1) 30%, rgba(0,0,0,0) 70%);
    -webkit-mask-image: radial-gradient(circle, rgba(0,0,0,1) 30%, rgba(0,0,0,0) 70%);
}

.hero-container-grid {
    display: grid;
    grid-template-columns: 1fr 1.35fr;
    gap: 60px;
    align-items: center;
    width: 100%;
    padding-top: 40px;
    padding-bottom: 40px;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-title-main {
    font-family: var(--font-heading);
    font-size: 3.6rem;
    font-weight: 900;
    line-height: 1.15;
    display: flex;
    flex-direction: column;
    margin-bottom: 20px;
    letter-spacing: -0.01em;
}

.hero-title-main span {
    color: #00f0ff;
}

.hero-title-main span.highlight {
    text-shadow: 0 0 20px rgba(0, 240, 255, 0.25);
}

.hero-desc-main {
    font-size: 1.15rem;
    color: var(--text-primary);
    margin-bottom: 36px;
    font-weight: 500;
    max-width: 500px;
}

.glow-btn-solid {
    position: relative;
    padding: 16px 36px;
    background: #00f0ff;
    color: #010924;
    font-weight: 700;
    font-size: 1rem;
    border-radius: var(--border-radius-sm);
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
}

.glow-btn-solid:hover {
    background: #ffffff;
    color: #010924;
    box-shadow: 0 0 25px rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

.hero-image-wrap {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

@keyframes floatCabinet {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-12px) scale(1.02); }
}

.hero-cabinet-img {
    width: 108%;
    max-width: 650px;
    height: auto;
    filter: drop-shadow(0 15px 30px rgba(0, 240, 255, 0.25));
    transition: var(--transition-slow);
    animation: floatCabinet 6s ease-in-out infinite;
}

.hero-cabinet-img:hover {
    filter: drop-shadow(0 20px 45px rgba(0, 240, 255, 0.4));
}

/* --- WE OFFER (ПРЕДЛОЖЕНИЯ) --- */
.offer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.offer-card {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.offer-icon-box {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: rgba(0, 240, 255, 0.05);
    border: 1px solid rgba(0, 240, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    margin-bottom: 24px;
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.05);
    transition: var(--transition-smooth);
}

.offer-card:hover .offer-icon-box {
    background: var(--primary);
    color: var(--bg-dark-950);
    box-shadow: 0 0 20px var(--primary-glow);
    transform: scale(1.1);
}

.offer-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

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

/* --- ADVANTAGES (ПРЕИМУЩЕСТВА) --- */
.adv-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.adv-card {
    position: relative;
    overflow: hidden;
}

.adv-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--primary);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: var(--transition-smooth);
}

.adv-card:hover::before {
    transform: scaleY(1);
}

.adv-num {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: rgba(0, 240, 255, 0.65); /* Made brighter by default for mobile readability */
    text-shadow: 0 0 8px rgba(0, 240, 255, 0.2);
    margin-bottom: 16px;
    line-height: 1;
    transition: var(--transition-smooth);
}

.adv-card:hover .adv-num {
    color: var(--primary);
    text-shadow: 0 0 10px var(--primary-glow);
}

.adv-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.adv-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* --- ASSORTMENT (АССОРТИМЕНТ) --- */
.assortment-tabs {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 24px;
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
}

.tab-btn:hover, .tab-btn.active {
    color: var(--primary);
    border-color: var(--primary);
    background: rgba(0, 240, 255, 0.05);
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.1);
}

.assortment-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
    align-items: center;
}

.assortment-details {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: 1fr;
    position: relative;
    width: 100%;
}

.assortment-info {
    grid-column: 1;
    grid-row: 1;
    opacity: 0;
    transform: translateX(-30px) scale(0.96);
    pointer-events: none;
    visibility: hidden;
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                visibility 0.4s;
}

.assortment-info.active {
    opacity: 1;
    transform: translateX(0) scale(1);
    pointer-events: auto;
    visibility: visible;
}

.assortment-title {
    font-size: 2rem;
    margin-bottom: 16px;
}

.assortment-desc {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.assortment-list {
    margin-bottom: 32px;
    display: grid;
    gap: 14px;
}

.assortment-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.assortment-item svg {
    color: var(--primary);
    margin-top: 4px;
    flex-shrink: 0;
}

.assortment-item span {
    font-size: 0.95rem;
    color: var(--text-primary);
}

/* Interactive Preview Box in Assortment */
.assortment-preview {
    display: flex;
    justify-content: center;
}

.preview-screen-box {
    width: 100%;
    max-width: 480px;
    aspect-ratio: 16/9;
    border-radius: var(--border-radius-md);
    background: #02040a;
    border: 2px solid var(--bg-dark-700);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.preview-screen-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../images/showroom.webp') center/cover no-repeat;
    opacity: 0.2;
    z-index: 0;
}

.preview-grid {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1.5px);
    background-size: 8px 8px;
    z-index: 1;
}

.preview-grid.coarse {
    background-size: 16px 16px;
}

.preview-glow-core {
    position: absolute;
    width: 60%;
    height: 60%;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.2) 0%, transparent 70%);
    filter: blur(10px);
    z-index: 2;
    animation: pulseGlow 4s ease-in-out infinite;
}

@keyframes pulseGlow {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.2); opacity: 1; }
}

.preview-content-label {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 900;
    color: #ffffff;
    z-index: 3;
    letter-spacing: 2px;
    text-shadow: 0 0 15px rgba(255,255,255,0.5), 0 0 30px var(--primary);
    text-transform: uppercase;
    text-align: center;
    line-height: 1.1;
}

.preview-content-label span {
    display: block;
    font-size: 0.8rem;
    color: var(--primary);
    margin-top: 8px;
    font-family: var(--font-body);
    font-weight: 500;
    letter-spacing: 1px;
}

/* --- INTERACTIVE LED CALCULATOR / SIMULATOR --- */
.calc-section {
    background: linear-gradient(180deg, var(--bg-dark-950) 0%, var(--bg-dark-900) 100%);
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.calc-wrap {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
}

.calc-inputs {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

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

.calc-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
}

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

.calc-btn-option {
    padding: 14px;
    border-radius: var(--border-radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.02);
    color: #ffffff;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition-fast);
    text-align: center;
}

.calc-btn-option:hover {
    border-color: rgba(0, 240, 255, 0.4);
    background: rgba(0, 240, 255, 0.03);
}

.calc-btn-option.active {
    border-color: var(--primary);
    background: rgba(0, 240, 255, 0.1);
    color: var(--primary);
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.1);
}

.calc-slider-wrap {
    position: relative;
}

.calc-slider {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    border-radius: 3px;
    background: var(--bg-dark-700);
    outline: none;
}

.calc-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    box-shadow: 0 0 10px var(--primary-glow);
    transition: var(--transition-fast);
}

.calc-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.calc-slider-val {
    float: right;
    font-family: var(--font-heading);
    color: var(--primary);
    font-weight: 700;
}

.calc-simulator-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.calc-screen-viewer {
    width: 100%;
    aspect-ratio: 16/9;
    background: #000;
    border: 4px solid #1e293b;
    border-radius: var(--border-radius-sm);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8);
}

.calc-pixel-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(rgba(0, 240, 255, 0.3) 1px, transparent 1.2px);
    background-size: 10px 10px;
    z-index: 1;
}

.calc-simulated-image {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.45;
    z-index: 0;
    background: url('../images/showroom.webp') center/cover no-repeat;
}

.calc-simulated-text {
    z-index: 2;
    text-align: center;
    font-family: var(--font-heading);
    font-weight: 900;
    color: #ffffff;
    font-size: 2rem;
    text-shadow: 0 0 15px var(--primary);
    letter-spacing: 2px;
}

.calc-results {
    margin-top: 24px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.calc-result-stat {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-sm);
    padding: 16px;
    text-align: center;
}

.calc-stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: block;
    margin-bottom: 6px;
}

.calc-stat-val {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--primary);
}

/* --- OUR WORKS (НАШИ РАБОТЫ - ALTERNATING LAYOUT) --- */
.works-list {
    display: flex;
    flex-direction: column;
    gap: 80px;
}

.work-item {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
}

/* Alternating rows logic */
.work-item:nth-child(even) {
    grid-template-columns: 1fr 1.2fr;
}

.work-item:nth-child(even) .work-img-wrap {
    order: 2;
}

.work-item:nth-child(even) .work-info {
    order: 1;
}

.work-img-wrap {
    position: relative;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    aspect-ratio: 16/10;
    border: var(--border-glass);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    background: #02050c;
}

/* High-tech corners on images */
.work-img-wrap::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 1px solid rgba(0, 240, 255, 0.1);
    border-radius: var(--border-radius-md);
    pointer-events: none;
    z-index: 3;
    transition: var(--transition-smooth);
}

.work-item:hover .work-img-wrap::before {
    border-color: var(--primary);
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.1) inset;
}

.work-img-wrap img,
.work-img-wrap video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
    z-index: 1;
}

.work-item:hover .work-img-wrap img,
.work-item:hover .work-img-wrap video {
    transform: scale(1.05);
}

.work-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.work-num {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 800;
    color: rgba(0, 240, 255, 0.65); /* Made brighter by default for mobile readability */
    text-shadow: 0 0 8px rgba(0, 240, 255, 0.2);
    line-height: 1;
    margin-bottom: 12px;
    transition: var(--transition-smooth);
}

.work-item:hover .work-num {
    color: var(--primary);
    text-shadow: 0 0 10px var(--primary-glow);
}

.work-info h3 {
    font-size: 1.8rem;
    margin-bottom: 6px;
    background: linear-gradient(135deg, #ffffff 40%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.work-subtitle {
    font-size: 0.95rem;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.work-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 24px;
    line-height: 1.6;
}

.work-specs {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
    padding-top: 16px;
    border-top: 1px dashed rgba(255, 255, 255, 0.05);
}

.work-specs li {
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: flex;
    justify-content: space-between;
    padding-bottom: 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.02);
}

.work-specs li strong {
    color: var(--text-primary);
}

/* --- CONTACTS / MAP / FORM --- */
.contacts-grid {
    display: grid;
    grid-template-columns: 1.2fr 1.5fr;
    gap: 48px;
}

.contacts-info {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-icon-wrap {
    width: 50px;
    height: 50px;
    border-radius: var(--border-radius-sm);
    background: rgba(0, 240, 255, 0.05);
    border: 1px solid rgba(0, 240, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
}

.contact-details h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-secondary);
}

.contact-details p {
    font-size: 1.05rem;
    font-weight: 600;
}

.contact-details a {
    display: block;
    margin-top: 4px;
}

.contact-details a:hover {
    color: var(--primary);
}

.social-links {
    display: flex;
    gap: 14px;
    margin-top: 10px;
    align-items: center;
}

@keyframes floatIcon {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

.social-link {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    display: inline-block;
    position: relative;
    color: var(--text-secondary);
    transition: var(--transition-smooth);
    animation: floatIcon 3s ease-in-out infinite;
}

.social-link:nth-child(1) { animation-delay: 0s; }
.social-link:nth-child(2) { animation-delay: 0.5s; }
.social-link:nth-child(3) { animation-delay: 1s; }

.social-link:hover {
    background: var(--primary);
    color: var(--bg-dark-950);
    border-color: var(--primary);
    box-shadow: 0 0 15px var(--primary-glow);
    transform: translateY(-10px) scale(1.05);
    animation-play-state: paused;
}

.social-link svg {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 18px;
    height: 18px;
    display: block;
}

/* Styled Interactive Dark Map */
.map-wrap {
    border-radius: var(--border-radius-md);
    overflow: hidden;
    border: var(--border-glass);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    height: 350px;
    position: relative;
}

.map-iframe {
    width: 100%;
    height: 100%;
    border: none;
    filter: invert(90%) hue-rotate(200deg) saturate(220%) brightness(80%) contrast(110%);
    opacity: 0.8;
    transition: var(--transition-smooth);
}

.map-iframe:hover {
    opacity: 1;
    filter: invert(90%) hue-rotate(200deg) saturate(220%) brightness(90%) contrast(100%);
}

.map-overlay-card {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(1, 9, 36, 0.95);
    backdrop-filter: blur(8px);
    border: var(--border-glass);
    border-radius: var(--border-radius-sm);
    padding: 16px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    z-index: 5;
    max-width: 240px;
}

.map-overlay-card h5 {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.map-overlay-card p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Contact Form Modal / Inline Block */
.form-container {
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

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

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-input {
    width: 100%;
    padding: 14px 18px;
    border-radius: var(--border-radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.02);
    color: #ffffff;
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition-fast);
    outline: none;
}

.form-input:focus {
    border-color: var(--primary);
    background: rgba(0, 240, 255, 0.02);
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.1);
}

textarea.form-input {
    resize: none;
    min-height: 120px;
}

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

/* --- FOOTER --- */
.footer {
    background: var(--bg-dark-950);
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    padding: 60px 0 30px;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 30px;
    color: var(--text-muted);
    font-size: 0.85rem;
}

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

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

/* --- MODAL DIALOG --- */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(1, 9, 36, 0.9);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
    padding: 20px;
    overflow-y: auto;
}

.modal.active {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    width: 100%;
    max-width: 500px;
    position: relative;
    transform: scale(0.9);
    transition: var(--transition-smooth);
    max-height: calc(100vh - 40px);
    overflow-y: auto;
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    color: var(--text-secondary);
    font-size: 1.5rem;
    z-index: 10;
}

.modal-close:hover {
    color: var(--primary);
}

/* --- RESPONSIVENESS --- */
@media (max-width: 1024px) {
    .nav-list, .nav-contacts {
        display: none;
    }
    
    .menu-btn {
        display: flex;
    }
    
    /* Mobile overlay menu */
    .nav.active {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background: var(--bg-dark-950);
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 40px;
        z-index: 100;
    }
    
    .nav.active .nav-list {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 24px;
    }
    
    .nav.active .nav-contacts {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 16px;
    }
    
    .nav.active .nav-link {
        font-size: 1.3rem;
    }

    .hero-container-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-content {
        align-items: center;
    }
    
    .offer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px;
    }
    
    .adv-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .assortment-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .calc-wrap {
        grid-template-columns: 1fr;
    }
    
    .work-item {
        gap: 40px;
    }
    
    .contacts-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }
    
    .hero-title-main {
        font-size: 2.5rem;
    }
    
    /* Hamburger morph to X */
    .menu-btn.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .menu-btn.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-btn.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .offer-grid {
        grid-template-columns: 1fr;
    }
    
    .adv-grid {
        grid-template-columns: 1fr;
    }
    
    .works-list {
        gap: 60px;
    }
    
    .work-item, .work-item:nth-child(even) {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .work-item:nth-child(even) .work-img-wrap {
        order: 1;
    }
    
    .work-item:nth-child(even) .work-info {
        order: 2;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-top {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}