/* ========================================
   TORSION FIELD DETECTOR - HARD TECH STYLE
   ======================================== */

/* CSS Variables */
:root {
    /* Colors - Hard Tech Dark Theme */
    --primary: #00f0ff;
    --primary-dark: #00a8b3;
    --primary-glow: rgba(0, 240, 255, 0.3);
    --secondary: #7000ff;
    --secondary-glow: rgba(112, 0, 255, 0.3);
    --accent: #ff00a0;
    --accent-glow: rgba(255, 0, 160, 0.3);
    
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-card: #151520;
    
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #606070;
    
    --border-color: #2a2a3a;
    --border-glow: rgba(0, 240, 255, 0.2);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
    
    /* Spacing */
    --section-padding: 120px;
    --container-max: 1280px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 30px var(--primary-glow);
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

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

ul {
    list-style: none;
}

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

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
}

/* Preloader */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

#preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader {
    position: relative;
    width: 80px;
    height: 80px;
}

.loader-ring {
    position: absolute;
    border: 2px solid transparent;
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loader-ring:nth-child(1) {
    width: 80px;
    height: 80px;
    top: 0;
    left: 0;
    animation-duration: 1s;
}

.loader-ring:nth-child(2) {
    width: 60px;
    height: 60px;
    top: 10px;
    left: 10px;
    animation-duration: 0.8s;
    animation-direction: reverse;
    border-top-color: var(--secondary);
}

.loader-ring:nth-child(3) {
    width: 40px;
    height: 40px;
    top: 20px;
    left: 20px;
    animation-duration: 0.6s;
    border-top-color: var(--accent);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loader-text {
    margin-top: 20px;
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--primary);
    letter-spacing: 2px;
    animation: pulse 1.5s ease infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    padding: 12px 0;
    border-bottom-color: var(--border-color);
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-brand .logo {
    color: var(--primary);
    animation: slowRotate 20s linear infinite;
}

@keyframes slowRotate {
    to { transform: rotate(360deg); }
}

.brand-text {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 0.5px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
}

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

.nav-menu a {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 8px 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), transparent);
    transition: width var(--transition-normal);
}

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

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

.lang-switch {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: 24px;
    padding-left: 24px;
    border-left: 1px solid var(--border-color);
}

.lang-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    padding: 4px 8px;
    transition: all var(--transition-fast);
    font-family: var(--font-mono);
}

.lang-btn:hover {
    color: var(--text-secondary);
}

.lang-btn.active {
    color: var(--primary);
    text-shadow: 0 0 10px var(--primary-glow);
}

.lang-divider {
    color: var(--border-color);
    font-size: 12px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(0, 240, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse at center, black 40%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 70%);
}

.particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0.5;
    animation: float 15s infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.5;
    }
    90% {
        opacity: 0.5;
    }
    100% {
        transform: translateY(-100vh) rotate(720deg);
        opacity: 0;
    }
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    margin-bottom: 24px;
}

.badge-text {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 3px;
    color: var(--primary);
    padding: 8px 16px;
    border: 1px solid var(--primary);
    background: rgba(0, 240, 255, 0.05);
}

.hero-title {
    font-size: clamp(40px, 6vw, 72px);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
}

.title-line {
    display: block;
}

.title-line.highlight {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 540px;
    margin-bottom: 40px;
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    gap: 48px;
    margin-bottom: 40px;
}

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

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary);
    font-family: var(--font-mono);
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-actions {
    display: flex;
    gap: 16px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--bg-primary);
    box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px var(--primary-glow);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    border-color: var(--primary);
    background: rgba(0, 240, 255, 0.05);
}

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

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.device-showcase {
    position: relative;
    width: 400px;
    height: 400px;
}

.device-ring {
    position: absolute;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.ring-1 {
    width: 400px;
    height: 400px;
    border-color: var(--primary);
    opacity: 0.3;
    animation: rotate 30s linear infinite;
}

.ring-2 {
    width: 300px;
    height: 300px;
    border-color: var(--secondary);
    opacity: 0.4;
    animation: rotate 20s linear infinite reverse;
}

.ring-3 {
    width: 200px;
    height: 200px;
    border-color: var(--accent);
    opacity: 0.5;
    animation: rotate 15s linear infinite;
}

@keyframes rotate {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.device-core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    border-radius: 50%;
}

.core-pulse {
    position: absolute;
    inset: -20px;
    border: 2px solid var(--primary);
    border-radius: 50%;
    animation: pulse-ring 2s ease-out infinite;
}

@keyframes pulse-ring {
    0% {
        transform: scale(0.8);
        opacity: 1;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.scroll-mouse {
    width: 24px;
    height: 36px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.scroll-wheel {
    width: 4px;
    height: 6px;
    background: var(--primary);
    border-radius: 2px;
    animation: scroll 1.5s ease infinite;
}

@keyframes scroll {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(6px); opacity: 0.3; }
}

/* Section Base */
.section {
    padding: var(--section-padding) 0;
}

.section-dark {
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 13px;
    letter-spacing: 3px;
    color: var(--primary);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 700;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-text .lead {
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: 24px;
    line-height: 1.7;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 40px;
}

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

.feature-item {
    display: flex;
    gap: 20px;
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all var(--transition-normal);
}

.feature-item:hover {
    border-color: var(--primary);
    transform: translateX(8px);
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 240, 255, 0.1);
    border-radius: 8px;
    color: var(--primary);
}

.feature-icon svg {
    width: 24px;
    height: 24px;
}

.feature-content h4 {
    font-size: 16px;
    margin-bottom: 8px;
}

.feature-content p {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
}

/* About Image Frame */
.about-image {
    position: relative;
}

.image-frame {
    position: relative;
    padding: 20px;
    border: 1px solid var(--border-color);
}

.frame-corner {
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid var(--primary);
}

.corner-tl { top: 0; left: 0; border-right: none; border-bottom: none; }
.corner-tr { top: 0; right: 0; border-left: none; border-bottom: none; }
.corner-bl { bottom: 0; left: 0; border-right: none; border-top: none; }
.corner-br { bottom: 0; right: 0; border-left: none; border-top: none; }

.image-content {
    aspect-ratio: 1;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.tech-diagram {
    position: relative;
    width: 200px;
    height: 200px;
}

.diagram-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    background: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 30px var(--primary-glow);
}

.diagram-orbit {
    position: absolute;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.orbit-1 {
    width: 80px;
    height: 80px;
    animation: rotate 10s linear infinite;
}

.orbit-2 {
    width: 140px;
    height: 140px;
    animation: rotate 15s linear infinite reverse;
}

.orbit-3 {
    width: 200px;
    height: 200px;
    animation: rotate 20s linear infinite;
}

/* Theory Section */
.theory-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.theory-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 40px;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.theory-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

.theory-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), transparent);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.theory-card:hover::before {
    transform: scaleX(1);
}

.card-number {
    font-family: var(--font-mono);
    font-size: 48px;
    font-weight: 700;
    color: var(--text-muted);
    opacity: 0.3;
    position: absolute;
    top: 20px;
    right: 20px;
}

.theory-card h3 {
    font-size: 24px;
    margin-bottom: 16px;
    padding-right: 60px;
}

.theory-card p {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 32px;
}

.card-visual {
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Vacuum Visual */
.vacuum-visual {
    position: relative;
    width: 100%;
    height: 100%;
}

.vacuum-wave {
    position: absolute;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    animation: wave 2s ease infinite;
}

.vacuum-wave:nth-child(1) { top: 30%; animation-delay: 0s; }
.vacuum-wave:nth-child(2) { top: 50%; animation-delay: 0.3s; }
.vacuum-wave:nth-child(3) { top: 70%; animation-delay: 0.6s; }

@keyframes wave {
    0%, 100% { opacity: 0.2; transform: scaleX(0.5); }
    50% { opacity: 1; transform: scaleX(1); }
}

/* Spin Visual */
.spin-visual {
    position: relative;
    width: 80px;
    height: 80px;
}

.spin-ring {
    position: absolute;
    border: 2px solid var(--primary);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 2s linear infinite;
}

.spin-ring:nth-child(1) {
    width: 80px;
    height: 80px;
    top: 0;
    left: 0;
}

.spin-ring:nth-child(2) {
    width: 50px;
    height: 50px;
    top: 15px;
    left: 15px;
    animation-direction: reverse;
    border-color: var(--secondary);
    border-bottom-color: transparent;
}

.spin-core {
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--accent);
    border-radius: 50%;
    top: 30px;
    left: 30px;
}

/* Field Visual */
.field-visual {
    position: relative;
    width: 120px;
    height: 60px;
}

.field-line {
    position: absolute;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    animation: fieldPulse 2s ease infinite;
}

.field-line:nth-child(1) { top: 0; width: 100%; animation-delay: 0s; }
.field-line:nth-child(2) { top: 20px; width: 80%; left: 10%; animation-delay: 0.2s; }
.field-line:nth-child(3) { top: 40px; width: 60%; left: 20%; animation-delay: 0.4s; }
.field-line:nth-child(4) { top: 60px; width: 100%; animation-delay: 0.6s; }

@keyframes fieldPulse {
    0%, 100% { opacity: 0.2; }
    50% { opacity: 1; }
}

.field-node {
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    top: 26px;
    left: 56px;
    box-shadow: 0 0 10px var(--primary-glow);
}

/* Wave Visual */
.wave-visual {
    width: 100px;
    height: 40px;
    position: relative;
    overflow: hidden;
}

.wave-path {
    position: absolute;
    width: 100%;
    height: 2px;
    background: var(--primary);
    top: 50%;
    transform: translateY(-50%);
}

.wave-path::before,
.wave-path::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background: var(--primary);
}

.wave-path::before {
    top: -10px;
    animation: waveUp 1.5s ease infinite;
}

.wave-path::after {
    top: 10px;
    animation: waveDown 1.5s ease infinite;
}

@keyframes waveUp {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(10px); }
}

@keyframes waveDown {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(-10px); }
}

/* Products Section */
.products-timeline {
    position: relative;
}

.product-item {
    position: relative;
    padding-left: 60px;
    margin-bottom: 48px;
}

.product-item:last-child {
    margin-bottom: 0;
}

.product-timeline-marker {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
}

.marker-dot {
    width: 16px;
    height: 16px;
    background: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--primary-glow);
    position: relative;
    z-index: 2;
}

.marker-line {
    position: absolute;
    top: 16px;
    left: 7px;
    width: 2px;
    height: calc(100% + 48px);
    background: var(--border-color);
}

.product-item:last-child .marker-line {
    display: none;
}

.product-card {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 32px;
    transition: all var(--transition-normal);
}

.product-card:hover {
    border-color: var(--primary);
}

.product-card.featured {
    border-color: var(--primary);
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(0, 240, 255, 0.05) 100%);
}

.product-image {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    min-height: 200px;
}

/* Device Placeholders */
.device-placeholder {
    position: relative;
}

.tsm-021 {
    width: 120px;
    height: 160px;
}

.tsm-021 .device-body {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, #2a2a3a 0%, #1a1a25 100%);
    border-radius: 8px;
    border: 2px solid var(--border-color);
}

.tsm-021 .device-display {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 40px;
    background: #001510;
    border: 1px solid var(--primary);
}

.tsm-021 .device-sensor {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    border-radius: 50%;
    opacity: 0.5;
}

.tsm-030 {
    width: 140px;
    height: 100px;
}

.tsm-030 .device-body {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, #2a2a3a 0%, #1a1a25 100%);
    border-radius: 4px;
    border: 2px solid var(--border-color);
}

.tsm-030 .device-laser {
    position: absolute;
    top: 20px;
    right: -10px;
    width: 30px;
    height: 10px;
    background: var(--accent);
    border-radius: 2px;
}

.tsm-030 .device-sensor {
    position: absolute;
    bottom: 20px;
    left: 20px;
    width: 40px;
    height: 40px;
    border: 2px solid var(--primary);
    border-radius: 50%;
}

.aureole {
    width: 100px;
    height: 120px;
}

.aureole .device-body {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, #2a2a3a 0%, #1a1a25 100%);
    border-radius: 50px;
    border: 2px solid var(--border-color);
}

.aureole .device-optics {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 2s ease infinite;
}

.grg-01 {
    width: 150px;
    height: 100px;
}

.grg-01 .device-body {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, #2a2a3a 0%, #1a1a25 100%);
    border-radius: 8px;
    border: 2px solid var(--border-color);
}

.grg-01 .laser-1 {
    position: absolute;
    top: 30px;
    right: 10px;
    width: 20px;
    height: 8px;
    background: var(--primary);
}

.grg-01 .laser-2 {
    position: absolute;
    bottom: 30px;
    right: 10px;
    width: 20px;
    height: 8px;
    background: var(--secondary);
}

.pz-3d {
    width: 120px;
    height: 140px;
}

.pz-3d .device-body {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, #2a2a3a 0%, #1a1a25 100%);
    border-radius: 8px;
    border: 2px solid var(--border-color);
}

.pz-3d .sensor-1 {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 30px;
    background: var(--primary);
    border-radius: 4px;
}

.pz-3d .sensor-2 {
    position: absolute;
    bottom: 30px;
    left: 20px;
    width: 30px;
    height: 30px;
    background: var(--secondary);
    border-radius: 4px;
}

.pz-3d .sensor-3 {
    position: absolute;
    bottom: 30px;
    right: 20px;
    width: 30px;
    height: 30px;
    background: var(--accent);
    border-radius: 4px;
}

.product-011 {
    width: 120px;
    height: 120px;
}

.product-011 .device-body {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #2a2a3a 0%, #1a1a25 100%);
    border-radius: 50%;
    border: 3px solid var(--primary);
    box-shadow: 0 0 30px var(--primary-glow);
}

.product-011 .device-pulse {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.product-011 .pulse-ring {
    position: absolute;
    width: 100px;
    height: 100px;
    border: 2px solid var(--accent);
    border-radius: 50%;
    animation: pulse-ring 2s ease-out infinite;
}

.product-011 .pulse-ring:nth-child(2) {
    animation-delay: 1s;
}

.product-info {
    display: flex;
    flex-direction: column;
}

.product-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.product-year {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--text-muted);
}

.product-name {
    font-size: 24px;
    font-weight: 700;
}

.product-badge {
    font-size: 11px;
    padding: 4px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: var(--text-secondary);
}

.product-badge.featured {
    background: var(--primary);
    color: var(--bg-primary);
    border-color: var(--primary);
}

.product-description {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 20px;
    flex-grow: 1;
}

.product-features-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.feature-tag {
    font-size: 12px;
    padding: 6px 12px;
    background: rgba(0, 240, 255, 0.1);
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 4px;
    color: var(--primary);
}

.product-specs {
    display: flex;
    gap: 32px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.spec {
    display: flex;
    flex-direction: column;
}

.spec-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.spec-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    font-family: var(--font-mono);
}

/* Research Section */
.research-tabs {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 24px;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: inherit;
}

.tab-btn:hover {
    border-color: var(--primary);
    color: var(--text-primary);
}

.tab-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--bg-primary);
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.research-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 32px;
    transition: all var(--transition-normal);
}

.research-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

.card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 240, 255, 0.1);
    border-radius: 8px;
    color: var(--primary);
    margin-bottom: 20px;
}

.card-icon svg {
    width: 24px;
    height: 24px;
}

.research-card h4 {
    font-size: 18px;
    margin-bottom: 12px;
}

.research-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Specs Section */
.specs {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    padding: 80px 0;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.spec-block {
    text-align: center;
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.spec-block:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

.spec-value-large {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary);
    font-family: var(--font-mono);
    margin-bottom: 8px;
}

.spec-value-large sup {
    font-size: 24px;
}

.spec-label-large {
    font-size: 14px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 64px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 32px;
    transition: all var(--transition-normal);
}

.contact-card:hover {
    border-color: var(--primary);
}

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 240, 255, 0.1);
    border-radius: 8px;
    color: var(--primary);
    margin-bottom: 16px;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-card h4 {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.contact-link {
    font-size: 16px;
    color: var(--primary);
    transition: color var(--transition-fast);
}

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

.contact-text {
    font-size: 16px;
    color: var(--text-primary);
}

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

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

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

.form-group label {
    font-size: 14px;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 15px;
    transition: all var(--transition-fast);
}

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

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

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

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 80px;
    margin-bottom: 60px;
}

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

.footer-brand .logo {
    color: var(--primary);
    margin-bottom: 16px;
}

.footer-brand-text {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}

.footer-tagline {
    font-size: 14px;
    color: var(--text-secondary);
}

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

.footer-column h5 {
    font-size: 14px;
    color: var(--text-primary);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-column a {
    font-size: 14px;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

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

.footer-credit {
    margin-top: 8px;
    font-size: 12px !important;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        order: 1;
    }
    
    .hero-visual {
        order: 0;
        margin-bottom: 40px;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .about-image {
        order: -1;
    }
    
    .theory-grid {
        grid-template-columns: 1fr;
    }
    
    .product-card {
        grid-template-columns: 1fr;
    }
    
    .product-image {
        min-height: 200px;
    }
    
    .research-grid {
        grid-template-columns: 1fr;
    }
    
    .specs-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 80px;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        flex-direction: column;
        padding: 24px;
        gap: 0;
        border-top: 1px solid var(--border-color);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: all var(--transition-normal);
    }
    
    .nav-menu.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    
    .nav-menu li {
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-menu a {
        display: block;
        padding: 16px 0;
    }
    
    .lang-switch {
        margin-left: auto;
        margin-right: 16px;
        padding-left: 16px;
    }
    
    .device-showcase {
        width: 280px;
        height: 280px;
    }
    
    .ring-1 { width: 280px; height: 280px; }
    .ring-2 { width: 210px; height: 210px; }
    .ring-3 { width: 140px; height: 140px; }
    
    .specs-grid {
        grid-template-columns: 1fr;
    }
    
    .research-tabs {
        flex-direction: column;
        align-items: stretch;
    }
    
    .tab-btn {
        width: 100%;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

/* Hidden class for language switching */
.hidden {
    display: none !important;
}