/* =========================================
   VARIABLES & DESIGN TOKENS
   ========================================= */
   :root {
    /* Colors */
    --bg-main: #0a0f16;
    --bg-secondary: #111a24;
    --bg-glass: rgba(17, 26, 36, 0.7);
    
    --accent-blue: #00d2ff;
    --accent-blue-glow: rgba(0, 210, 255, 0.4);
    --accent-green: #39ff14;
    
    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Effects */
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
}

/* =========================================
   RESET & BASE STYLES
   ========================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.highlight {
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* =========================================
   BUTTONS
   ========================================= */
.btn {
    display: inline-block;
    padding: 12px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    border: none;
    font-family: var(--font-heading);
}

.btn-primary {
    background: linear-gradient(90deg, var(--accent-blue), #0088ff);
    color: #fff;
    box-shadow: 0 4px 15px var(--accent-blue-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 210, 255, 0.6);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background: var(--accent-blue);
    color: #000;
    box-shadow: 0 0 15px var(--accent-blue-glow);
}

/* =========================================
   HEADER & NAVIGATION
   ========================================= */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--bg-glass);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 15px 0;
    transition: var(--transition);
}

.header.scrolled {
    padding: 10px 0;
    background: rgba(10, 15, 22, 0.9);
}

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

.logo {
    font-size: 1.8rem;
    font-family: var(--font-heading);
    font-weight: 800;
    letter-spacing: 1px;
}

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

.nav-list {
    display: flex;
    gap: 30px;
}

.nav-link {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-blue);
    transition: width 0.3s ease;
}

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

.menu-toggle {
    display: none;
    cursor: pointer;
}

.menu-toggle .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: all 0.3s ease-in-out;
    background-color: var(--text-primary);
}

/* =========================================
   HERO SECTION
   ========================================= */
.hero {
    height: 100vh;
    min-height: 600px;
    position: relative;
    display: flex;
    align-items: center;
    background: url('assets/hero-bg.png') no-repeat center center/cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(10, 15, 22, 0.9) 0%, rgba(10, 15, 22, 0.4) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
}

.hero-title {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 20px;
    animation: fadeUp 1s ease-out;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    animation: fadeUp 1s ease-out 0.2s both;
}

.hero-actions {
    display: flex;
    gap: 20px;
    animation: fadeUp 1s ease-out 0.4s both;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* =========================================
   SECTIONS & TYPOGRAPHY
   ========================================= */
.section {
    padding: 100px 0;
}

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

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* =========================================
   PRODUCTS SECTION
   ========================================= */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.product-card {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
    position: relative;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 210, 255, 0.1);
    border-color: rgba(0, 210, 255, 0.3);
}

.product-image-wrapper {
    position: relative;
    width: 100%;
    height: 250px;
    overflow: hidden;
    background: #000;
}

.product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.8;
    transition: transform 0.5s ease;
}

.product-card:hover .product-image {
    transform: scale(1.05);
    opacity: 1;
}

.product-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--accent-blue);
    color: #000;
    padding: 5px 12px;
    font-size: 0.8rem;
    font-weight: 700;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.product-badge.accent {
    background: var(--accent-green);
}

.product-details {
    padding: 30px;
}

.product-details h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.product-details p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.product-specs {
    margin-bottom: 25px;
}

.product-specs li {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    font-size: 0.95rem;
    color: #e2e8f0;
}

.product-specs .icon {
    margin-right: 10px;
    font-style: normal;
}

/* =========================================
   ABOUT SECTION
   ========================================= */
.about {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-main) 100%);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 210, 255, 0.3), transparent);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.about-content p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 40px;
}

.stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

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

.stat-number {
    font-size: 3rem;
    color: var(--accent-blue);
    margin-bottom: 5px;
    text-shadow: 0 0 15px var(--accent-blue-glow);
}

.stat-item p {
    color: #fff;
    margin-bottom: 0;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

/* =========================================
   FOOTER
   ========================================= */
.footer {
    background: #05080b;
    padding: 60px 0 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-container {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand, .footer-links, .footer-contact {
    flex: 1;
    min-width: 250px;
}

.footer-brand p {
    color: var(--text-secondary);
    margin-top: 15px;
}

.footer h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--accent-blue);
}

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

.footer-links ul li a {
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-links ul li a:hover {
    color: var(--accent-blue);
    padding-left: 5px;
}

.footer-contact p {
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* =========================================
   RESPONSIVE MEDIA QUERIES
   ========================================= */
@media screen and (max-width: 768px) {
    .nav-list {
        position: absolute;
        top: 100%;
        left: -100%;
        flex-direction: column;
        background: var(--bg-secondary);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 15px rgba(0,0,0,0.3);
        padding: 20px 0;
    }

    .nav-list.active {
        left: 0;
    }

    .menu-toggle {
        display: block;
    }

    .menu-toggle.is-active .bar:nth-child(2) {
        opacity: 0;
    }
    .menu-toggle.is-active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .menu-toggle.is-active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-title {
        font-size: 2.5rem;
    }

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

    .stats {
        gap: 30px;
    }
}

/* =========================================
   CONTACT FORM
   ========================================= */
.contact-form-container {
    max-width: 600px;
    margin: 0 auto;
    background: var(--bg-secondary);
    padding: 40px;
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

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

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 15px;
    background: var(--bg-main);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 10px rgba(0, 210, 255, 0.2);
}

.contact-form button {
    width: 100%;
}

.form-status {
    margin-top: 15px;
    text-align: center;
    font-weight: 500;
}

.form-status.success {
    color: var(--accent-green);
}

.form-status.error {
    color: #ff3333;
}