/* app.css — bir sonraki modülde (2035 UI/UX Glassmorphism Tema Motoru) genişletilecek */

:root {
    --color-primary: #5B8CFF;
    --color-secondary: #8F6BFF;
    --color-button: #22D3A6;
    --color-bg: #ffffff;
    --color-surface: rgba(255,255,255,0.6);
    --color-text: #1a1a1a;
    --color-text-muted: #5a5a5a;
    --color-border: rgba(0,0,0,0.08);
}

[data-theme="dark"] {
    --color-bg: #0f1115;
    --color-surface: rgba(255,255,255,0.06);
    --color-text: #f2f2f2;
    --color-text-muted: #a8a8a8;
    --color-border: rgba(255,255,255,0.1);
}

body {
    background: var(--color-bg);
    color: var(--color-text);
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
    margin: 0;
    transition: background-color .25s ease, color .25s ease;
}

/* Glassmorphism kart yüzeyi — tema motoru bileşenlerinin ortak temel sınıfı */
.file-card, .file-detail, .checkout, .dashboard, .auth-form {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 1rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 1.25rem;
}

#theme-toggle {
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: .4rem .6rem;
    cursor: pointer;
    font-size: 1rem;
}

/* --- Admin Panel --- */
.admin-stat-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}
.stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 1rem;
    padding: 1rem;
    text-align: center;
    text-decoration: none;
    color: var(--color-text);
}
.stat-card strong { display: block; font-size: 2rem; color: var(--color-primary); }

.admin-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}
.admin-table th, .admin-table td {
    text-align: left;
    padding: .6rem .8rem;
    border-bottom: 1px solid var(--color-border);
}

.admin-settings fieldset {
    border: 1px solid var(--color-border);
    border-radius: .75rem;
    padding: 1rem;
    margin-bottom: 1rem;
}
.admin-settings label {
    display: block;
    margin-bottom: .75rem;
}
.admin-settings input, .admin-settings select {
    display: block;
    width: 100%;
    max-width: 360px;
    margin-top: .25rem;
    padding: .5rem;
    border-radius: .5rem;
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    color: var(--color-text);
}

.btn {
    display: inline-block;
    padding: .6rem 1.2rem;
    border-radius: .75rem;
    border: none;
    background: var(--color-button);
    color: #fff;
    text-decoration: none;
    cursor: pointer;
}
.btn--primary { background: var(--color-primary); }

/* --- Sürükle-Bırak Yükleme Alanı --- */
.upload-page form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 560px;
}
.upload-page label {
    display: flex;
    flex-direction: column;
    gap: .35rem;
    font-size: .9rem;
    color: var(--color-text-muted);
}
.upload-page input, .upload-page select, .upload-page textarea {
    padding: .6rem;
    border-radius: .5rem;
    border: 1px solid var(--color-border);
    background: var(--color-bg);
    color: var(--color-text);
    font-size: 1rem;
}
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
}
.dropzone {
    border: 2px dashed var(--color-border);
    border-radius: 1rem;
    padding: 2rem 1rem;
    text-align: center;
    cursor: pointer;
    transition: border-color .2s ease, background .2s ease;
    position: relative;
}
.dropzone input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}
.dropzone--active {
    border-color: var(--color-primary);
    background: color-mix(in srgb, var(--color-primary) 8%, transparent);
}
.dropzone-filename {
    display: block;
    margin-top: .5rem;
    font-weight: 600;
    color: var(--color-primary);
}

.skip-link {
    position: absolute;
    left: -999px;
}
.skip-link:focus {
    left: 1rem;
    top: 1rem;
    background: var(--color-primary);
    color: #fff;
    padding: .5rem 1rem;
    z-index: 100;
}

/* --- Toast Notifications --- */
#toast-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: .5rem;
    z-index: 1000;
}
.toast {
    padding: .75rem 1.25rem;
    border-radius: .75rem;
    color: #fff;
    background: #333;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity .3s ease, transform .3s ease;
    backdrop-filter: blur(8px);
}
.toast--visible { opacity: 1; transform: translateY(0); }
.toast--success { background: #16a37a; }
.toast--error   { background: #d93636; }
.toast--warning { background: #d9922e; }
.toast--info    { background: var(--color-primary); }

/* --- Skeleton Loader --- */
.skeleton-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
}
.skeleton-grid::before {
    content: "";
    grid-column: 1 / -1;
}