/* ===== AUOUGV.COM - Industrial Manufacturing Style ===== */
:root {
    --primary: #1a1f2e;
    --primary-dark: #0f131c;
    --steel: #2a3142;
    --steel-light: #3a4356;
    --steel-dark: #1e2433;
    --accent: #ff6b00;
    --accent-dark: #cc5500;
    --accent-light: #ff8533;
    --warning: #ffb800;
    --safety: #ffd700;
    --dark: #0a0d14;
    --dark-2: #12161f;
    --dark-3: #1a1f2e;
    --gray: #8892a6;
    --gray-light: #b0b8c8;
    --light-gray: #d8dce5;
    --concrete: #e8eaed;
    --white: #ffffff;
    --success: #00a86b;
    --line: rgba(255, 107, 0, 0.2);
    --grid-line: rgba(255, 255, 255, 0.03);
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.4);
    --radius: 2px;
    --radius-lg: 4px;
    --max-width: 1320px;
    --font-mono: 'JetBrains Mono', 'Consolas', 'Courier New', monospace;
    --font-body: 'Inter', 'Segoe UI', -apple-system, sans-serif;
}

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

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

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--dark-2);
    background: var(--white);
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 32px;
}

/* Industrial grid background pattern */
.industrial-grid {
    background-image:
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 40px 40px;
}

/* Hazard stripe pattern */
.hazard-stripe {
    background: repeating-linear-gradient(
        45deg,
        var(--accent),
        var(--accent) 10px,
        var(--dark) 10px,
        var(--dark) 20px
    );
}

/* ===== Header / Navigation ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 13, 20, 0.96);
    backdrop-filter: blur(12px);
    border-bottom: 2px solid var(--accent);
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(10, 13, 20, 0.99);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

/* Top utility bar */
.top-bar {
    background: var(--dark);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding: 6px 0;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--gray);
    letter-spacing: 0.5px;
}

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

.top-bar .tb-left {
    display: flex;
    gap: 24px;
}

.top-bar .tb-right {
    display: flex;
    gap: 20px;
}

.top-bar span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.top-bar .dot {
    width: 6px;
    height: 6px;
    background: var(--success);
    border-radius: 50%;
    display: inline-block;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: 0;
}

.logo .logo-icon {
    width: 40px;
    height: 40px;
    background: var(--accent);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 900;
    color: var(--white);
    clip-path: polygon(0 0, 100% 0, 100% 80%, 85% 100%, 0 100%);
}

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

.logo .logo-sub {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--gray);
    font-weight: 400;
    letter-spacing: 1px;
    text-transform: uppercase;
    display: block;
    line-height: 1;
    margin-top: 2px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-menu a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.88rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
    position: relative;
    padding: 4px 0;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--accent);
}

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

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

.nav-cta {
    background: var(--accent) !important;
    color: var(--white) !important;
    padding: 10px 22px;
    border-radius: var(--radius);
    font-weight: 700;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.82rem !important;
    clip-path: polygon(0 0, 100% 0, 100% 70%, 92% 100%, 0 100%);
}

.nav-cta:hover {
    background: var(--accent-dark) !important;
    color: var(--white) !important;
}

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

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

.mobile-toggle span {
    width: 26px;
    height: 3px;
    background: var(--white);
    border-radius: 1px;
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--dark);
    overflow: hidden;
    padding-top: 110px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.35;
    filter: grayscale(40%) contrast(1.1);
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        linear-gradient(135deg, rgba(10, 13, 20, 0.95) 0%, rgba(10, 13, 20, 0.7) 50%, rgba(255, 107, 0, 0.15) 100%),
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 100% 100%, 50px 50px, 50px 50px;
}

/* Hero corner markers */
.hero::before,
.hero::after {
    content: '';
    position: absolute;
    width: 60px;
    height: 60px;
    border: 2px solid var(--accent);
    z-index: 2;
}

.hero::before {
    top: 130px;
    left: 32px;
    border-right: none;
    border-bottom: none;
}

.hero::after {
    bottom: 32px;
    right: 32px;
    border-left: none;
    border-top: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 780px;
    padding: 60px 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 107, 0, 0.12);
    border: 1px solid var(--accent);
    border-left: 4px solid var(--accent);
    color: var(--accent);
    padding: 8px 18px;
    border-radius: 0;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 32px;
    font-family: var(--font-mono);
}

.hero h1 {
    color: var(--white);
    font-size: 3.6rem;
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -1px;
    margin-bottom: 24px;
    text-transform: uppercase;
}

.hero h1 .highlight {
    color: var(--accent);
    position: relative;
}

.hero h1 .highlight::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--accent);
    opacity: 0.3;
}

.hero p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.15rem;
    line-height: 1.7;
    margin-bottom: 40px;
    max-width: 600px;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 36px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-family: var(--font-body);
    position: relative;
}

.btn-primary {
    background: var(--accent);
    color: var(--white);
    clip-path: polygon(0 0, 100% 0, 100% 70%, 94% 100%, 0 100%);
}

.btn-primary:hover {
    background: var(--accent-dark);
    transform: translateX(4px);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.25);
}

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

.hero-stats {
    display: flex;
    gap: 0;
    margin-top: 64px;
    padding-top: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-stat {
    padding: 28px 32px;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    flex: 1;
}

.hero-stat:last-child {
    border-right: none;
}

.hero-stat .num {
    font-size: 2.4rem;
    font-weight: 900;
    color: var(--white);
    font-family: var(--font-mono);
    line-height: 1;
}

.hero-stat .num span {
    color: var(--accent);
}

.hero-stat .label {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 8px;
}

/* ===== Section Common ===== */
.section {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 64px;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 20px;
    font-family: var(--font-mono);
}

.section-tag::before {
    content: '';
    width: 24px;
    height: 2px;
    background: var(--accent);
}

.section-title {
    font-size: 2.6rem;
    font-weight: 900;
    color: var(--dark-2);
    letter-spacing: -0.5px;
    margin-bottom: 16px;
    line-height: 1.15;
    text-transform: uppercase;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--gray);
    line-height: 1.7;
}

/* ===== Products Grid ===== */
.products {
    background: var(--dark);
    color: var(--white);
    background-image:
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 40px 40px;
}

.products .section-title {
    color: var(--white);
}

.products .section-subtitle {
    color: rgba(255, 255, 255, 0.55);
}

.products .section-tag {
    color: var(--accent);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: 24px;
}

.product-card {
    background: var(--steel-dark);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-top: 3px solid transparent;
    position: relative;
}

.product-card:hover {
    transform: translateY(-6px);
    border-top-color: var(--accent);
    border-color: rgba(255, 107, 0, 0.3);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 107, 0, 0.2);
}

/* Corner accent on hover */
.product-card::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 0 20px 20px 0;
    border-color: transparent var(--accent) transparent transparent;
    opacity: 0;
    transition: var(--transition);
}

.product-card:hover::after {
    opacity: 1;
}

.product-card .product-img {
    height: 230px;
    overflow: hidden;
    position: relative;
    background: var(--dark);
}

.product-card .product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
    filter: grayscale(20%) contrast(1.05);
}

.product-card:hover .product-img img {
    transform: scale(1.06);
    filter: grayscale(0%) contrast(1.1);
}

/* Scanline overlay on product images */
.product-card .product-img::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(transparent 0%, transparent 49%, rgba(255, 107, 0, 0.03) 50%, transparent 51%, transparent 100%);
    background-size: 100% 4px;
    pointer-events: none;
}

.product-card .product-tag {
    position: absolute;
    top: 0;
    left: 0;
    background: var(--accent);
    color: var(--white);
    padding: 6px 16px 6px 12px;
    border-radius: 0;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: var(--font-mono);
    clip-path: polygon(0 0, 100% 0, 92% 100%, 0 100%);
}

.product-card .product-info {
    padding: 28px;
}

.product-card h3 {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.product-card .product-model {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--accent);
    margin-bottom: 14px;
    letter-spacing: 1px;
}

.product-card p {
    color: rgba(255, 255, 255, 0.55);
    font-size: 0.92rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

.product-card .product-features {
    list-style: none;
    margin-bottom: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 16px;
}

.product-card .product-features li {
    color: rgba(255, 255, 255, 0.65);
    font-size: 0.82rem;
    padding: 5px 0;
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
}

.product-card .product-features li::before {
    content: '■';
    color: var(--accent);
    font-size: 0.6rem;
}

.product-card .btn-card {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent);
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    transition: var(--transition);
    border-bottom: 1px solid transparent;
    padding-bottom: 2px;
}

.product-card .btn-card:hover {
    gap: 14px;
    color: var(--white);
    border-bottom-color: var(--accent);
}

/* ===== Features Section ===== */
.features {
    background: var(--concrete);
    background-image:
        linear-gradient(rgba(0,0,0,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.02) 1px, transparent 1px);
    background-size: 40px 40px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--white);
    padding: 40px 32px;
    border-radius: var(--radius);
    text-align: left;
    transition: var(--transition);
    border: 1px solid var(--light-gray);
    border-left: 4px solid var(--accent);
    position: relative;
}

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

.feature-icon {
    width: 56px;
    height: 56px;
    margin: 0 0 24px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    background: var(--dark);
    color: var(--accent);
    border: 2px solid var(--dark);
}

.feature-card h3 {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--dark-2);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.feature-card p {
    color: var(--gray);
    font-size: 0.92rem;
    line-height: 1.6;
}

.feature-card .feature-num {
    position: absolute;
    top: 24px;
    right: 24px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--light-gray);
    font-weight: 700;
}

/* ===== About Section ===== */
.about {
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-img {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: relative;
    border: 1px solid var(--light-gray);
}

.about-img::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 12px;
    right: 12px;
    bottom: 12px;
    border: 2px solid var(--accent);
    z-index: 2;
    pointer-events: none;
    opacity: 0.6;
}

.about-img::after {
    content: 'MFG FACILITY 01';
    position: absolute;
    bottom: 24px;
    left: 24px;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--white);
    background: var(--accent);
    padding: 4px 12px;
    z-index: 3;
    letter-spacing: 1px;
    font-weight: 700;
}

.about-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(15%) contrast(1.05);
}

.about-text .section-tag {
    text-align: left;
}

.about-text h2 {
    font-size: 2.3rem;
    font-weight: 900;
    color: var(--dark-2);
    margin-bottom: 20px;
    line-height: 1.15;
    text-transform: uppercase;
    letter-spacing: -0.5px;
}

.about-text p {
    color: var(--gray);
    font-size: 1.02rem;
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-list {
    list-style: none;
    margin-top: 28px;
}

.about-list li {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 18px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--concrete);
}

.about-list li:last-child {
    border-bottom: none;
}

.about-list .check {
    width: 28px;
    height: 28px;
    background: var(--accent);
    border-radius: var(--radius);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    flex-shrink: 0;
    margin-top: 2px;
    font-weight: 700;
}

.about-list .text strong {
    color: var(--dark-2);
    font-size: 0.98rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.about-list .text span {
    display: block;
    color: var(--gray);
    font-size: 0.88rem;
    margin-top: 2px;
}

/* ===== CTA Section ===== */
.cta-section {
    background: var(--dark);
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    background-image:
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 40px 40px;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: repeating-linear-gradient(
        45deg,
        var(--accent),
        var(--accent) 12px,
        var(--dark) 12px,
        var(--dark) 24px
    );
}

.cta-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: repeating-linear-gradient(
        45deg,
        var(--accent),
        var(--accent) 12px,
        var(--dark) 12px,
        var(--dark) 24px
    );
}

.cta-section h2 {
    font-size: 2.3rem;
    font-weight: 900;
    color: var(--white);
    margin-bottom: 16px;
    position: relative;
    text-transform: uppercase;
    letter-spacing: -0.5px;
}

.cta-section p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 1.1rem;
    margin-bottom: 36px;
    position: relative;
}

.cta-section .btn-primary {
    position: relative;
}

/* ===== Contact Section ===== */
.contact {
    background: var(--concrete);
    background-image:
        linear-gradient(rgba(0,0,0,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.02) 1px, transparent 1px);
    background-size: 40px 40px;
}

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

.contact-info h2 {
    font-size: 2.1rem;
    font-weight: 900;
    color: var(--dark-2);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: -0.5px;
}

.contact-info p {
    color: var(--gray);
    font-size: 1.02rem;
    line-height: 1.7;
    margin-bottom: 32px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 20px;
    padding: 16px;
    background: var(--white);
    border-radius: var(--radius);
    border-left: 3px solid var(--accent);
    transition: var(--transition);
}

.contact-item:hover {
    border-left-width: 6px;
    transform: translateX(4px);
}

.contact-item .icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius);
    background: var(--dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--accent);
    flex-shrink: 0;
}

.contact-item .text strong {
    display: block;
    color: var(--dark-2);
    font-size: 0.92rem;
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 700;
}

.contact-item .text span {
    color: var(--gray);
    font-size: 0.9rem;
    font-family: var(--font-mono);
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border-top: 4px solid var(--accent);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    color: var(--dark-2);
    font-size: 0.78rem;
    font-weight: 700;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: var(--font-mono);
}

.form-group label::before {
    content: '> ';
    color: var(--accent);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--concrete);
    border-radius: var(--radius);
    font-size: 0.95rem;
    color: var(--dark-2);
    transition: var(--transition);
    font-family: var(--font-body);
    background: var(--concrete);
}

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

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

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

.contact-form .btn-primary {
    width: 100%;
    justify-content: center;
    margin-top: 8px;
}

/* ===== Footer ===== */
.footer {
    background: var(--dark);
    color: rgba(255, 255, 255, 0.6);
    padding: 0;
    position: relative;
}

.footer::before {
    content: '';
    display: block;
    height: 6px;
    background: repeating-linear-gradient(
        45deg,
        var(--accent),
        var(--accent) 12px,
        var(--dark) 12px,
        var(--dark) 24px
    );
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding: 64px 0 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

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

.footer-brand p {
    font-size: 0.92rem;
    line-height: 1.7;
    max-width: 320px;
    color: rgba(255, 255, 255, 0.45);
}

.footer-col h4 {
    color: var(--white);
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-family: var(--font-mono);
}

.footer-col h4::before {
    content: '// ';
    color: var(--accent);
}

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

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul a {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-col ul a:hover {
    color: var(--accent);
    padding-left: 4px;
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.3);
    font-family: var(--font-mono);
    letter-spacing: 0.5px;
}

/* ===== Page Banner ===== */
.page-banner {
    background: var(--dark);
    padding: 150px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
    background-image:
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 40px 40px;
}

.page-banner::before {
    content: '';
    position: absolute;
    top: 110px;
    left: 0;
    width: 100%;
    height: 4px;
    background: repeating-linear-gradient(
        90deg,
        var(--accent),
        var(--accent) 20px,
        transparent 20px,
        transparent 40px
    );
    opacity: 0.5;
}

.page-banner::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: repeating-linear-gradient(
        90deg,
        var(--accent),
        var(--accent) 20px,
        transparent 20px,
        transparent 40px
    );
    opacity: 0.5;
}

.page-banner h1 {
    font-size: 2.8rem;
    font-weight: 900;
    color: var(--white);
    margin-bottom: 16px;
    position: relative;
    text-transform: uppercase;
    letter-spacing: -0.5px;
}

.page-banner p {
    color: rgba(255, 255, 255, 0.55);
    font-size: 1.1rem;
    position: relative;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
    font-size: 0.8rem;
    position: relative;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.4);
}

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

.breadcrumb span {
    color: rgba(255, 255, 255, 0.25);
}

/* ===== Product Detail ===== */
.product-detail {
    padding: 80px 0;
    position: relative;
}

.product-detail:nth-child(even) {
    background: var(--concrete);
    background-image:
        linear-gradient(rgba(0,0,0,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.02) 1px, transparent 1px);
    background-size: 40px 40px;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.product-detail-img {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 100px;
    border: 1px solid var(--light-gray);
    position: relative;
}

.product-detail-img::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    border: 2px solid var(--accent);
    z-index: 2;
    pointer-events: none;
    opacity: 0.5;
}

.product-detail-img img {
    width: 100%;
    height: auto;
    filter: grayscale(10%) contrast(1.05);
}

.product-detail-info h1 {
    font-size: 2.1rem;
    font-weight: 900;
    color: var(--dark-2);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: -0.5px;
}

.product-detail-info .product-code {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent);
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.product-detail-info .price-tag {
    display: inline-block;
    background: var(--dark);
    color: var(--accent);
    padding: 8px 20px;
    border-radius: var(--radius);
    font-weight: 700;
    margin-bottom: 24px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.product-detail-info p {
    color: var(--gray);
    font-size: 1.02rem;
    line-height: 1.8;
    margin-bottom: 32px;
}

.spec-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 32px;
    border: 1px solid var(--concrete);
    border-top: 3px solid var(--accent);
}

.spec-table th,
.spec-table td {
    padding: 14px 20px;
    text-align: left;
    border-bottom: 1px solid var(--concrete);
}

.spec-table th {
    color: var(--dark-2);
    font-weight: 700;
    font-size: 0.82rem;
    width: 40%;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--concrete);
    font-family: var(--font-mono);
}

.spec-table td {
    color: var(--gray);
    font-size: 0.9rem;
    font-family: var(--font-mono);
}

.spec-table tr:last-child th,
.spec-table tr:last-child td {
    border-bottom: none;
}

.spec-table tr:hover td {
    background: rgba(255, 107, 0, 0.03);
    color: var(--dark-2);
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scanLine {
    0% { top: 0; }
    100% { top: 100%; }
}

.fade-in {
    animation: fadeInUp 0.6s ease forwards;
}

/* ===== Responsive ===== */
@media (max-width: 968px) {
    .about-content,
    .contact-grid,
    .product-detail-grid {
        grid-template-columns: 1fr;
    }

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

    .hero h1 {
        font-size: 2.6rem;
    }

    .hero-stats {
        flex-wrap: wrap;
    }

    .hero-stat {
        flex: 1 1 45%;
    }

    .top-bar .tb-left {
        display: none;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: fixed;
        top: 68px;
        left: 0;
        width: 100%;
        background: var(--dark);
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        border-bottom: 2px solid var(--accent);
    }

    .nav-menu.active {
        display: flex;
    }

    .mobile-toggle {
        display: flex;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .hero-stats {
        gap: 0;
    }

    .hero-stat {
        padding: 20px;
        flex: 1 1 50%;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .section {
        padding: 64px 0;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .page-banner h1 {
        font-size: 2rem;
    }

    .hero::before,
    .hero::after {
        display: none;
    }

    .top-bar {
        display: none;
    }

    .hero {
        padding-top: 80px;
    }
}