/* css/style.css */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --bg-gradient-start: #0b0f19;
    --bg-gradient-end: #1e1b4b;
    --panel-bg: rgba(30, 41, 59, 0.45);
    --panel-border: rgba(255, 255, 255, 0.08);
    --primary-color: #6366f1; /* Indigo */
    --primary-hover: #4f46e5;
    --secondary-color: #a855f7; /* Purple */
    --secondary-hover: #9333ea;
    --accent-color: #10b981; /* Emerald/Green */
    --accent-hover: #059669;
    --danger-color: #ef4444; /* Red */
    --danger-hover: #dc2626;
    --warning-color: #f59e0b; /* Amber */
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dark: #0f172a;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --shadow-premium: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.15);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    background: linear-gradient(135deg, var(--bg-gradient-start), var(--bg-gradient-end));
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    line-height: 1.5;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--secondary-color);
}

/* Navigasyon Bar */
header {
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--panel-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

.header-logo {
    height: 30px;
    width: auto;
    display: block;
    transition: opacity 0.3s ease;
}

.logo:hover .header-logo {
    opacity: 0.85;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 0.8rem;
    border-radius: 8px;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.05);
}

.nav-links a.btn-nav {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: var(--shadow-glow);
}

.nav-links a.btn-nav:hover {
    transform: translateY(-2px);
    filter: brightness(1.1);
}

/* Ana İçerik Konteyner */
main {
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: 2rem auto;
    padding: 0 2rem;
}

/* Glassmorphism Panel (Kartlar) */
.glass-panel {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 20px;
    padding: 2.5rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-premium);
    margin-bottom: 2rem;
    animation: fadeIn 0.6s ease-out;
}

/* Giriş Ekranı (Özel Ortalama) */
.auth-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 70vh;
}

.auth-card {
    width: 100%;
    max-width: 450px;
}

.auth-title {
    text-align: center;
    font-weight: 800;
    margin-bottom: 2rem;
    font-size: 2rem;
    background: linear-gradient(to right, #f8fafc, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--panel-border);
    border-radius: 10px;
    color: var(--text-main);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
    background: rgba(15, 23, 42, 0.7);
}

.form-control::placeholder {
    color: rgba(148, 163, 184, 0.5);
}

/* Butonlar */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: var(--font-sans);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 25px rgba(99, 102, 241, 0.3);
    filter: brightness(1.1);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-main);
    border: 1px solid var(--panel-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.btn-danger {
    background: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background: var(--danger-hover);
    transform: translateY(-2px);
    box-shadow: 0 0 15px rgba(239, 68, 68, 0.3);
}

.btn-success {
    background: var(--accent-color);
    color: white;
}

.btn-success:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.3);
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    border-radius: 6px;
}

/* Mesajlar / Alertler */
.alert {
    padding: 1rem 1.25rem;
    border-radius: 10px;
    margin-bottom: 1.5rem;
    font-weight: 500;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.alert-danger {
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}

.alert-success {
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #a7f3d0;
}

.alert-warning {
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: #fde047;
}

/* Dashboard / İstatistik Kartları */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    background: rgba(30, 41, 59, 0.3);
    border: 1px solid var(--panel-border);
    border-radius: 15px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color));
}

.stat-title {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(to right, #ffffff, #e2e8f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Tablolar */
.table-responsive {
    overflow-x: auto;
    width: 100%;
    margin-top: 1rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.95rem;
}

th {
    padding: 1rem;
    font-weight: 600;
    color: var(--text-muted);
    border-bottom: 2px solid var(--panel-border);
    background: rgba(15, 23, 42, 0.2);
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--panel-border);
    vertical-align: middle;
}

tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* Durum Rozetleri (Badges) */
.badge {
    display: inline-flex;
    padding: 0.25rem 0.6rem;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 50px;
    text-transform: uppercase;
}

.badge-success {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
}

.badge-danger {
    background: rgba(239, 68, 68, 0.15);
    color: #f87171;
}

.badge-primary {
    background: rgba(99, 102, 241, 0.15);
    color: #818cf8;
}

/* Dosya Listesi Izgarası (Grid Layout) */
.files-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.file-card {
    background: rgba(30, 41, 59, 0.3);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.file-card:hover {
    transform: translateY(-5px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: 0 10px 25px -5px rgba(0,0,0,0.4), var(--shadow-glow);
}

.file-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.file-name {
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--text-main);
}

.file-description {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    height: 2.5rem;
}

.file-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
    border-top: 1px solid var(--panel-border);
    padding-top: 0.75rem;
    margin-bottom: 1rem;
}

.file-actions {
    display: flex;
    gap: 0.5rem;
}

/* Detay Sayfası Tasarımı */
.detail-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

@media (max-width: 768px) {
    .detail-layout {
        grid-template-columns: 1fr;
    }
}

/* Arama ve Filtreleme Bölümü */
.filter-bar {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

@media (max-width: 600px) {
    .filter-bar {
        flex-direction: column;
    }
}

/* Alt Bilgi (Footer) */
footer {
    background: rgba(15, 23, 42, 0.8);
    border-top: 1px solid var(--panel-border);
    padding: 1.2rem 0;
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: auto;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
}

.footer-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer-logo {
    height: 28px;
    width: auto;
    opacity: 0.7;
    transition: opacity 0.3s ease;
    flex-shrink: 0;
}

.footer-logo:hover {
    opacity: 1;
}

.footer-left p {
    margin: 0;
    line-height: 1.4;
}

.footer-right {
    flex-shrink: 0;
}

.footer-credit {
    color: var(--text-muted);
    font-size: 0.8rem;
    transition: color 0.3s ease;
    white-space: nowrap;
}

.footer-credit:hover {
    color: var(--primary-color);
}

.footer-credit strong {
    color: var(--text-main);
    font-weight: 700;
}

@media (max-width: 768px) {
    .footer-container {
        flex-direction: column;
        text-align: center;
        gap: 0.75rem;
    }

    .footer-left {
        flex-direction: row;
        gap: 0.5rem;
    }
}

/* Animasyonlar */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}