/* Ana CSS dosyası - önceki içeriği buraya ekleyin */
:root {
    --primary-cyan: #00D9FF;
    --dark-bg: #0A0E27;
    --dark-blue: #1a1f3a;
    --darker-blue: #0d1126;
    --glow-cyan: rgba(0, 217, 255, 0.6);
    --text-light: #ffffff;
    --text-gray: #B8C5D6;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Poppins', sans-serif;
    background: var(--dark-bg);
    color: var(--text-light);
    line-height: 1.6;
}
.container { max-width: 1400px; margin: 0 auto; padding: 0 2rem; }
.section { padding: 6rem 0; }
.section-dark { background: linear-gradient(180deg, var(--darker-blue) 0%, var(--dark-bg) 100%); }
.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    text-align: center;
    margin-bottom: 1rem;
    color: var(--primary-cyan);
    text-shadow: 0 0 20px var(--glow-cyan);
}
/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    box-shadow: 0 4px 30px rgba(0, 217, 255, 0.1);
}
.navbar { width: 100%; }
.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo img { height: 50px; filter: drop-shadow(0 0 10px var(--glow-cyan)); }
.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
}
.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    transition: all 0.3s;
}
.nav-links a:hover { color: var(--primary-cyan); }
.lang-switch {
    background: linear-gradient(135deg, var(--primary-cyan), #0099cc);
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: 25px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--primary-cyan);
    font-size: 1.5rem;
    cursor: pointer;
}
/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 8rem 2rem 4rem;
    position: relative;
    overflow: hidden;
}
.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: 0.3; }
.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, transparent 0%, var(--dark-bg) 100%);
    z-index: 1;
}
.hero-content { position: relative; z-index: 2; max-width: 1000px; }
.hero-title {
    font-size: clamp(2.5rem, 6vw, 5rem);
    margin-bottom: 1rem;
    text-shadow: 0 0 40px var(--glow-cyan);
}
.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.5rem);
    color: var(--text-gray);
    margin-bottom: 2rem;
}
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    font-size: 2rem;
    color: var(--primary-cyan);
    z-index: 2;
    animation: bounce 2s infinite;
}
@keyframes bounce {
    0%, 100% { transform: translate(-50%, 0); }
    50% { transform: translate(-50%, -10px); }
}
/* Buttons */
.btn {
    display: inline-flex;
    padding: 1rem 2.5rem;
    border-radius: 30px;
    font-weight: 600;
    text-decoration: none;
    border: 2px solid var(--primary-cyan);
    transition: all 0.3s;
    cursor: pointer;
}
.btn-primary {
    background: linear-gradient(135deg, var(--primary-cyan), #0099cc);
    color: white;
    box-shadow: 0 0 20px var(--glow-cyan);
}
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 50px var(--glow-cyan);
}
.btn-secondary {
    background: transparent;
    color: var(--primary-cyan);
}
.btn-secondary:hover {
    background: var(--primary-cyan);
    color: var(--dark-bg);
}
/* Cards */
.about-content, .products-grid, .features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}
.about-card, .product-card, .feature-item {
    background: rgba(26, 31, 58, 0.6);
    padding: 2rem;
    border-radius: 20px;
    border: 1px solid rgba(0, 217, 255, 0.2);
    transition: all 0.3s;
}
.about-card:hover, .product-card:hover, .feature-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 40px var(--glow-cyan);
    border-color: var(--primary-cyan);
}
.card-icon, .feature-icon {
    font-size: 3rem;
    color: var(--primary-cyan);
    margin-bottom: 1rem;
}
.product-card { cursor: pointer; overflow: hidden; }
.product-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
    border-radius: 15px;
    margin-bottom: 1rem;
}
.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}
.product-card:hover .product-image img { transform: scale(1.1); }
.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 217, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}
.product-card:hover .product-overlay { opacity: 1; }
.product-content h3 { color: var(--primary-cyan); margin-bottom: 0.5rem; }
.product-content p { color: var(--text-gray); font-size: 0.95rem; }
/* Contact */
.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}
.contact-info, .contact-form {
    background: rgba(26, 31, 58, 0.6);
    padding: 2rem;
    border-radius: 20px;
    border: 1px solid rgba(0, 217, 255, 0.2);
}
.contact-item {
    margin-bottom: 1.5rem;
    display: flex;
    gap: 1rem;
}
.contact-item i {
    color: var(--primary-cyan);
    font-size: 1.5rem;
}
.form-group { margin-bottom: 1.5rem; }
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--primary-cyan);
}
.form-group input, .form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border-radius: 10px;
    border: 1px solid rgba(0, 217, 255, 0.3);
    background: rgba(10, 14, 39, 0.8);
    color: var(--text-light);
    font-family: inherit;
}
.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-cyan);
    box-shadow: 0 0 15px var(--glow-cyan);
}
/* Footer */
.footer {
    background: rgba(10, 14, 39, 0.95);
    padding: 2rem;
    text-align: center;
    border-top: 1px solid rgba(0, 217, 255, 0.2);
}
/* WhatsApp Button */
.whatsapp-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 999;
}
.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-cyan), #0099cc);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 999;
}
.back-to-top.visible { opacity: 1; visibility: visible; }
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark-bg);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}
.loader.hidden { opacity: 0; visibility: hidden; }
.glow-circle {
    width: 80px;
    height: 80px;
    border: 4px solid var(--primary-cyan);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(10, 14, 39, 0.98);
        flex-direction: column;
        padding: 2rem;
        transition: left 0.3s;
    }
    .nav-links.active { left: 0; }
    .mobile-menu-btn { display: block; }
}