/* --- Google Fonts (Modern & Okunaklı) --- */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&display=swap');

/* --- Global Değişkenler --- */
:root {
    --primary-color: #1a2a44; /* Profesyonel Koyu Lacivert */
    --accent-color: #f1c40f; /* Canlı Turnuva Sarısı */
    --accent-hover: #f39c12;
    --text-dark: #2c3e50;
    --text-light: #ecf0f1;
    --bg-light: #f8f9fa;
    --transition: all 0.3s ease;
}

/* --- Temel Ayarlar --- */
body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
}

/* --- Navigasyon Barı (Dinamik Gradient) --- */
.navbar {
    background: linear-gradient(135deg, var(--primary-color) 0%, #34495e 100%) !important;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    padding: 15px 0;
}

.navbar-brand {
    font-weight: 700;
    font-style: italic;
    color: var(--accent-color) !important;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-link {
    color: var(--text-light) !important;
    font-weight: 400;
    margin: 0 10px;
    position: relative;
    transition: var(--transition);
}

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

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

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

/* --- Kart Tasarımları (Şık & Hover Efektli) --- */
.card {
    border: none;
    border-radius: 15px;
    transition: var(--transition);
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

    .card:hover {
        transform: translateY(-8px);
        box-shadow: 0 12px 25px rgba(0,0,0,0.1) !important;
    }

.card-header {
    border-radius: 15px 15px 0 0 !important;
    font-weight: 600;
}

/* --- Modern Butonlar --- */
.btn {
    border-radius: 10px;
    padding: 12px 24px;
    font-weight: 600;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

    .btn-primary:hover {
        background-color: #2c3e50;
        border-color: #2c3e50;
        transform: scale(1.03);
    }

.btn-accent {
    background-color: var(--accent-color);
    color: var(--primary-color);
    border-color: var(--accent-color);
}

    .btn-accent:hover {
        background-color: var(--accent-hover);
        color: var(--primary-color);
        border-color: var(--accent-hover);
        transform: scale(1.03);
    }

/* --- Başlıklar (Modern Kalınlık) --- */
h1, h2, h3, h4, h5 {
    font-weight: 700;
    color: var(--primary-color);
}

/* --- Tablo Düzeni (Temiz) --- */
.table {
    border-collapse: separate;
    border-spacing: 0 10px;
    background-color: transparent;
}

    .table tr {
        background-color: #fff;
        border-radius: 10px;
        box-shadow: 0 2px 4px rgba(0,0,0,0.02);
    }

        .table tr:hover {
            background-color: #f1f1f1 !important;
        }

    .table thead tr {
        background-color: var(--primary-color);
        color: #fff;
        box-shadow: none;
    }

    .table td, .table th {
        vertical-align: middle;
        padding: 15px;
        border: none;
    }

/* Footer (Zarif) */
footer {
    background-color: #fff;
    border-top: 1px solid #ddd;
    color: #7f8c8d;
    padding: 20px 0;
}
/* Kategori Kartları Özel Stili */
.category-card {
    transition: var(--transition);
    border: 2px solid #ddd;
}

.btn-check:checked + .category-card {
    background-color: var(--primary-color) !important;
    color: #fff !important;
    border-color: var(--primary-color) !important;
}

.category-icon {
    opacity: 0.5;
}

.btn-check:checked + .category-card .category-icon {
    opacity: 1;
}
@media (prefers-color-scheme: dark) {
    body {
        background-color: #121212;
        color: #e0e0e0;
    }

    .card {
        background-color: #1e1e1e;
        color: white;
    }

    .table tr {
        background-color: #1e1e1e;
        color: white;
    }

    .bg-light {
        background-color: #121212 !important;
    }
}
.glass-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
}