/* ==================== Reset & Global ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-blue: #0066ff;
    --secondary-blue: #00b4ff;
    --dark-bg: #0a1428;
    --card-bg: #1a2332;
    --accent-cyan: #00d9ff;
    --accent-lime: #00ff88;
    --text-light: #e0e0e0;
    --text-primary: #ffffff;
    --border-color: #00d9ff;
    --gradient-1: linear-gradient(135deg, #0066ff 0%, #00b4ff 100%);
    --gradient-2: linear-gradient(135deg, #00d9ff 0%, #00ff88 100%);
    --shadow: 0 8px 32px rgba(0, 214, 255, 0.2);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(180deg, #0a1428 0%, #1a2332 50%, #0f1a2d 100%);
    color: var(--text-light);
    line-height: 1.6;
    min-height: 100vh;
}

html {
    scroll-behavior: smooth;
}

/* ==================== Navbar ==================== */
.navbar {
    background: linear-gradient(90deg, rgba(10, 20, 40, 0.95) 0%, rgba(26, 35, 50, 0.95) 100%);
    border-bottom: 2px solid var(--accent-cyan);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 214, 255, 0.3);
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

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

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

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--accent-cyan);
    margin: 5px 0;
    transition: 0.3s;
}

/* ==================== Hero Section ==================== */
.hero {
    background: linear-gradient(135deg, #0066ff 0%, #00b4ff 50%, #00d9ff 100%);
    padding: 8rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 255, 136, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    text-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.95);
}

/* ==================== Buttons ==================== */
.btn-primary, .btn-secondary {
    padding: 0.8rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-primary {
    background: var(--gradient-2);
    color: #000;
    box-shadow: 0 4px 15px rgba(0, 255, 136, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 255, 136, 0.6);
}

.btn-secondary {
    background: var(--gradient-1);
    color: var(--text-primary);
    box-shadow: 0 4px 15px rgba(0, 102, 255, 0.4);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 180, 255, 0.6);
}

/* ==================== Container & Sections ==================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.product-section {
    padding: 5rem 2rem;
}

.product-section.alt-bg {
    background: linear-gradient(180deg, rgba(10, 20, 40, 0.5) 0%, rgba(26, 35, 50, 0.8) 100%);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==================== Products Grid ==================== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.product-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 136, 0.1), transparent);
    transition: left 0.3s ease;
}

.product-card:hover::before {
    left: 100%;
}

.product-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-lime);
    box-shadow: 0 12px 40px rgba(0, 255, 136, 0.3);
}

.product-image {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: float 3s ease-in-out infinite;
}

.product-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.price {
    font-size: 1.8rem;
    font-weight: bold;
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0.5rem 0;
}

.description {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

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

/* ==================== Payment Section ==================== */
.payment-section {
    padding: 5rem 2rem;
    background: linear-gradient(180deg, rgba(0, 102, 255, 0.1) 0%, rgba(0, 214, 255, 0.05) 100%);
}

.payment-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.payment-card {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.payment-card:hover {
    border-color: var(--accent-lime);
    box-shadow: 0 8px 30px rgba(0, 255, 136, 0.2);
}

.payment-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.payment-card h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

/* ==================== Contact Section ==================== */
.contact-section {
    padding: 5rem 2rem;
}

.contact-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

/* ==================== Modal ==================== */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 12px;
    border: 2px solid var(--border-color);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 214, 255, 0.3);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.close {
    color: var(--text-light);
    float: right;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close:hover {
    color: var(--accent-lime);
}

.modal-content h2 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==================== Form ==================== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--accent-cyan);
    font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    background: rgba(0, 102, 255, 0.1);
    border: 2px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(224, 224, 224, 0.5);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-lime);
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.2);
    background: rgba(0, 255, 136, 0.05);
}

/* ==================== Footer ==================== */
.footer {
    background: linear-gradient(90deg, rgba(10, 20, 40, 0.95) 0%, rgba(26, 35, 50, 0.95) 100%);
    border-top: 2px solid var(--accent-cyan);
    padding: 2rem;
    text-align: center;
    color: var(--text-light);
}

/* ==================== Responsive Design ==================== */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--card-bg);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        border-bottom: 2px solid var(--accent-cyan);
        gap: 0;
    }

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

    .nav-menu li {
        padding: 1rem 0;
        border-bottom: 1px solid var(--border-color);
    }

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

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

    .hero {
        padding: 5rem 1rem;
    }

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

    .products-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .product-card {
        padding: 1.5rem;
    }

    .modal-content {
        width: 95%;
        padding: 1.5rem;
    }

    .payment-methods {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .navbar-container {
        padding: 1rem;
    }

    .logo {
        font-size: 1.3rem;
    }

    .hero h1 {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .product-image {
        font-size: 3rem;
    }

    .btn-primary, .btn-secondary {
        padding: 0.6rem 1.5rem;
        font-size: 0.9rem;
    }
}