/* ============================================================
   BYGEN SOSYAL MEDYA YÖNETİM PANELİ — Premium Dark Mode UI
   ============================================================ */

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

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
    /* Backgrounds */
    --bg-body: #0f1117;
    --bg-sidebar: #161822;
    --bg-card: #1a1d26;
    --bg-card-hover: #1e2130;
    --bg-input: #252830;
    --bg-surface: #1e212b;

    /* Borders */
    --border: #2d3039;
    --border-light: #363a45;

    /* Primary */
    --primary: #6366f1;
    --primary-hover: #818cf8;
    --primary-glow: rgba(99, 102, 241, 0.25);
    --primary-bg: rgba(99, 102, 241, 0.1);

    /* Semantic */
    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.1);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.1);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.1);
    --info: #3b82f6;
    --info-bg: rgba(59, 130, 246, 0.1);

    /* Text */
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-heading: #f1f5f9;

    /* Platform Colors */
    --color-instagram: #e1306c;
    --color-facebook: #1877f2;
    --color-x: #ffffff;
    --color-linkedin: #0a66c2;
    --color-youtube: #ff0000;
    --color-whatsapp: #25d366;
    --color-telegram: #0088cc;
    --color-tiktok: #fe2c55;
    --color-pinterest: #e60023;
    --color-threads: #ffffff;

    /* Layout */
    --sidebar-width: 260px;

    /* Radius */
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    /* Transition */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow: 0 4px 12px rgba(0,0,0,0.25);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.35);
    --shadow-glow: 0 0 20px var(--primary-glow);
}

/* ── Reset & Base ──────────────────────────────────────────── */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 15px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition-fast);
}
a:hover {
    color: var(--primary-hover);
}

/* ── Sidebar ───────────────────────────────────────────────── */
.layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 100;
    overflow-y: auto;
    transition: var(--transition);
}

.sidebar-header {
    margin-bottom: 2rem;
}

.brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sidebar-brand {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-brand-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--primary), #a855f7);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.sidebar-brand-text {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-heading);
    letter-spacing: -0.3px;
}

.sidebar-brand-sub {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sidebar-nav {
    flex: 1;
    padding: 12px 10px;
}

.sidebar-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--text-muted);
    padding: 16px 12px 8px;
    font-weight: 600;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 14px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    text-decoration: none;
    margin-bottom: 2px;
    position: relative;
}

.sidebar-link:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

.sidebar-link.active {
    background: var(--primary-bg);
    color: var(--primary);
    font-weight: 600;
}

.sidebar-link.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    bottom: 8px;
    width: 3px;
    background: var(--primary);
    border-radius: 0 3px 3px 0;
}

.sidebar-link svg, .sidebar-link .nav-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    opacity: 0.8;
}

.sidebar-link.active svg, .sidebar-link.active .nav-icon {
    opacity: 1;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    background: var(--bg-card);
}

.sidebar-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), #a855f7);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    color: #fff;
    flex-shrink: 0;
}

.sidebar-user-info {
    flex: 1;
    min-width: 0;
}

.sidebar-user-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user-role {
    font-size: 11px;
    color: var(--text-muted);
}

/* ── Main Content ──────────────────────────────────────────── */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    padding: 0;
}

.top-bar {
    position: sticky;
    top: 0;
    z-index: 50;
    padding: 16px 32px;
    background: rgba(15, 17, 23, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-heading);
    letter-spacing: -0.3px;
}

.top-bar-subtitle {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 2px;
}

.page-content {
    padding: 28px 32px;
    max-width: 1400px;
    animation: fadeIn 0.4s ease;
}

/* ── Cards ─────────────────────────────────────────────────── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 24px;
    transition: var(--transition);
}

.card:hover {
    border-color: var(--border-light);
}

.card-glass {
    background: rgba(26, 29, 38, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.card-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-heading);
    margin-bottom: 6px;
}

.card-subtitle {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

/* ── Stats Grid ────────────────────────────────────────────── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 24px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--stat-color, var(--primary));
    opacity: 0.8;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-light);
}

.stat-card-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 8px;
}

.stat-card-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-heading);
    letter-spacing: -0.5px;
}

.stat-card-icon {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 36px;
    opacity: 0.12;
}

/* ── Forms ─────────────────────────────────────────────────── */
.form-group {
    margin-bottom: 20px;
}

.form-group label, .form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    letter-spacing: 0.2px;
}

.form-control {
    width: 100%;
    padding: 11px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 14px;
    transition: var(--transition);
    outline: none;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-control::placeholder {
    color: var(--text-muted);
}

select.form-control {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
    cursor: pointer;
}

select.form-control option {
    background: var(--bg-card);
    color: var(--text-primary);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.form-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 6px;
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 20px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #8b5cf6);
    color: #fff;
    box-shadow: 0 2px 8px var(--primary-glow);
}
.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px var(--primary-glow);
    color: #fff;
}

.btn-success {
    background: linear-gradient(135deg, var(--success), #059669);
    color: #fff;
}
.btn-success:hover { transform: translateY(-1px); color: #fff; }

.btn-danger {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}
.btn-danger:hover {
    background: var(--danger);
    color: #fff;
}

.btn-secondary {
    background: var(--bg-input);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}
.btn-secondary:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.btn-sm {
    padding: 7px 14px;
    font-size: 12px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* Platform Connect Buttons */
.btn-platform {
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    color: #fff;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}
.btn-platform:hover { transform: translateY(-1px); color: #fff; }

.btn-meta { background: linear-gradient(135deg, #1877f2, #0866ff); }
.btn-google { background: linear-gradient(135deg, #ea4335, #fbbc05); }
.btn-whatsapp { background: linear-gradient(135deg, #25d366, #128c7e); }
.btn-telegram { background: linear-gradient(135deg, #0088cc, #0077b5); }
.btn-linkedin { background: linear-gradient(135deg, #0a66c2, #004182); }
.btn-pinterest { background: linear-gradient(135deg, #e60023, #bd081c); }

/* ── Tables ────────────────────────────────────────────────── */
table {
    width: 100%;
    border-collapse: collapse;
}

table thead th {
    padding: 12px 16px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    font-weight: 600;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    text-align: left;
    background: transparent;
}

table tbody td {
    padding: 14px 16px;
    font-size: 14px;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(45, 48, 57, 0.5);
    vertical-align: middle;
}

table tbody tr {
    transition: var(--transition-fast);
}

table tbody tr:hover {
    background: var(--bg-card-hover);
}

table tbody tr:last-child td {
    border-bottom: none;
}

/* ── Badges ────────────────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.3px;
    white-space: nowrap;
}

.badge-success { background: var(--success-bg); color: var(--success); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-info { background: var(--info-bg); color: var(--info); }
.badge-primary { background: var(--primary-bg); color: var(--primary); }
.badge-muted { background: rgba(100, 116, 139, 0.15); color: var(--text-muted); }

/* ── Alerts ────────────────────────────────────────────────── */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: slideDown 0.3s ease;
}

.alert-success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.alert-error {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.alert-warning {
    background: var(--warning-bg);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.alert-info {
    background: var(--info-bg);
    color: var(--info);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

/* ── Platform Cards ────────────────────────────────────────── */
.platform-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
    margin-bottom: 12px;
}

.platform-card:hover {
    border-color: var(--border-light);
    transform: translateX(4px);
}

.platform-icon {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
    color: #fff;
}

.platform-icon.instagram { background: linear-gradient(135deg, #833ab4, #e1306c, #f77737); }
.platform-icon.facebook { background: #1877f2; }
.platform-icon.x { background: #000; border: 1px solid var(--border-light); }
.platform-icon.linkedin { background: #0a66c2; }
.platform-icon.youtube { background: #ff0000; }
.platform-icon.whatsapp { background: #25d366; }
.platform-icon.telegram { background: linear-gradient(135deg, #2aabee, #229ed9); }
.platform-icon.tiktok { background: #000; border: 1px solid var(--border-light); }
.platform-icon.pinterest { background: #e60023; }
.platform-icon.threads { background: #000; border: 1px solid var(--border-light); }

.platform-info {
    flex: 1;
    min-width: 0;
}

.platform-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.platform-username {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}

.platform-status {
    flex-shrink: 0;
}

/* ── API Config Cards ──────────────────────────────────────── */
.api-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 16px;
    transition: var(--transition);
}

.api-card:hover {
    border-color: var(--border-light);
}

.api-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 22px;
    cursor: pointer;
    user-select: none;
}

.api-card-header-left {
    display: flex;
    align-items: center;
    gap: 14px;
}

.api-card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-heading);
}

.api-card-desc {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}

.api-card-body {
    padding: 0 22px 20px;
    border-top: 1px solid var(--border);
}

.api-card-body .form-group:first-child {
    margin-top: 18px;
}

/* ── Grid Helpers ──────────────────────────────────────────── */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.flex-center {
    display: flex;
    align-items: center;
    gap: 10px;
}

.gap-sm { gap: 8px; }
.gap-md { gap: 16px; }
.gap-lg { gap: 24px; }

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }

/* ── Empty State ───────────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 48px 24px;
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.4;
}

.empty-state-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.empty-state-text {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 24px;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

/* ── Divider ───────────────────────────────────────────────── */
.divider {
    border: 0;
    border-top: 1px solid var(--border);
    margin: 24px 0;
}

/* ── Login Page ────────────────────────────────────────────── */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-body);
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--primary-glow), transparent 70%);
    top: -200px;
    right: -100px;
    pointer-events: none;
}

.login-page::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.15), transparent 70%);
    bottom: -150px;
    left: -100px;
    pointer-events: none;
}

.login-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    width: 100%;
    max-width: 420px;
    position: relative;
    z-index: 1;
    box-shadow: var(--shadow-lg);
}

.login-brand {
    text-align: center;
    margin-bottom: 32px;
}

.login-brand-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--primary), #a855f7);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin: 0 auto 16px;
}

.login-brand h1 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-heading);
    margin-bottom: 4px;
}

.login-brand p {
    font-size: 13px;
    color: var(--text-muted);
}

/* ── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--border-light);
}

/* ── Animations ────────────────────────────────────────────── */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 5px var(--primary-glow); }
    50% { box-shadow: 0 0 20px var(--primary-glow), 0 0 40px rgba(99, 102, 241, 0.1); }
}

.animate-fade { animation: fadeIn 0.4s ease; }
.animate-pulse { animation: pulse 2s infinite; }

/* ── Mobile Toggle ─────────────────────────────────────────── */
.mobile-toggle {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), #a855f7);
    color: #fff;
    border: none;
    font-size: 22px;
    cursor: pointer;
    z-index: 200;
    box-shadow: var(--shadow-lg);
    display: none;
    align-items: center;
    justify-content: center;
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 1024px) {
    .grid-2, .grid-3 {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
        box-shadow: var(--shadow-lg);
    }

    .main-content {
        margin-left: 0;
    }

    .top-bar {
        padding: 14px 16px;
    }

    .page-content {
        padding: 20px 16px;
    }

    .mobile-toggle {
        display: flex;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .login-box {
        margin: 20px;
        padding: 28px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}