/* Premium Modern Design System */
:root {
    --bg-dark: #0a0a0c;
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-highlight: rgba(255, 255, 255, 0.15);

    --text-primary: #ffffff;
    --text-secondary: #94a3b8;

    --accent-primary: #6366f1;
    --accent-secondary: #a855f7;
    --accent-glow: rgba(99, 102, 241, 0.4);

    --gradient-text: linear-gradient(135deg, #e0e7ff 0%, #6366f1 100%);
    --gradient-btn: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    background-image:
        radial-gradient(circle at 15% 50%, rgba(99, 102, 241, 0.08) 0%, transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(168, 85, 247, 0.08) 0%, transparent 25%);
}

/* Language Visibility */
.lang-tr .en {
    display: none !important;
}

.lang-en .tr {
    display: none !important;
}

/* Language Switcher */
.lang-switcher {
    position: absolute;
    top: 2rem;
    right: 2rem;
    display: flex;
    gap: 0.5rem;
    background: var(--glass-bg);
    padding: 0.3rem;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
}

.lang-switcher button {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.lang-switcher button.active {
    background: var(--accent-primary);
    color: white;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    text-align: center;
    padding: 8rem 0 4rem;
}

h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 30px rgba(99, 102, 241, 0.3));
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

/* About Section Styles */
.about-section {
    margin-bottom: 6rem;
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 32px;
    padding: 4rem;
    text-align: center;
}

.about-lead {
    font-size: 1.5rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto 4rem;
    line-height: 1.6;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    text-align: left;
}

.feature-item {
    background: rgba(255, 255, 255, 0.02);
    padding: 2rem;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.feature-item:hover {
    background: rgba(99, 102, 241, 0.05);
    border-color: var(--accent-primary);
    transform: translateY(-5px);
}

.feature-item h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Section Titles */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 2rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Existing Pricing & Gallery Styles ... (Keeping them or refactoring) */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-bottom: 6rem;
}

.pricing-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 3rem 2rem;
    text-align: center;
    transition: all 0.4s ease;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    position: relative;
}

.pricing-card.featured {
    border-color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.05);
}

.plan-price {
    font-size: 3rem;
    font-weight: 800;
}

.plan-btn {
    background: var(--gradient-btn);
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 700;
    transition: 0.3s;
}

.gallery-centered {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2.5rem;
    padding-bottom: 6rem;
}

.card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    overflow: hidden;
    transition: 0.4s;
}

.image-wrapper {
    background: rgba(255, 255, 255, 0.05);
    padding: 1rem;
    display: flex;
    justify-content: center;
}

.card img {
    max-height: 400px;
    object-fit: contain;
    width: 100%;
    border-radius: 12px;
}

.card-content {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    text-align: center;
}

.wallet-address {
    font-family: monospace;
    background: rgba(0, 0, 0, 0.3);
    padding: 0.8rem;
    border-radius: 10px;
    word-break: break-all;
}

.copy-btn {
    background: var(--gradient-btn);
    color: white;
    border: none;
    padding: 0.8rem;
    border-radius: 10px;
    cursor: pointer;
}

footer {
    text-align: center;
    padding: 4rem;
    opacity: 0.6;
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    header {
        padding: 5rem 0 2.5rem;
    }

    h1 {
        font-size: 2.2rem;
    }

    .subtitle {
        font-size: 1rem;
        padding: 0 1rem;
    }

    .lang-switcher {
        top: 1rem;
        right: 1rem;
        padding: 0.2rem;
    }
    
    .lang-switcher button {
        padding: 0.4rem 0.8rem;
        font-size: 0.9rem;
    }

    .glass-card {
        padding: 2rem 1.25rem;
        border-radius: 20px;
    }

    .about-lead {
        font-size: 1.1rem;
        margin-bottom: 2.5rem;
    }

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

    .features-grid,
    .pricing-grid,
    .gallery-centered {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .pricing-card {
        padding: 2rem 1.5rem;
    }

    .plan-price {
        font-size: 2.5rem;
    }

    .card img {
        max-height: 250px;
    }

    .wallet-address {
        font-size: 0.75rem;
        padding: 0.6rem;
    }
    
    footer {
        padding: 2rem;
    }
}