/* ==========================================================================
   FB Automation Suite - Premium SaaS Design System
   ========================================================================== */

:root {
    --bg-body: #090d16;
    --bg-surface: #0f172a;
    --bg-card: #141e33;
    --bg-card-hover: #1a2742;
    --bg-input: #0b1120;
    --bg-glass: rgba(20, 30, 51, 0.7);
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(255, 255, 255, 0.16);
    --border-accent: rgba(59, 130, 246, 0.4);

    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --primary-glow: rgba(59, 130, 246, 0.35);

    --accent-gradient: linear-gradient(135deg, #3b82f6 0%, #6366f1 50%, #8b5cf6 100%);
    --card-gradient: linear-gradient(180deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0) 100%);
    
    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.12);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.12);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.12);
    --info: #06b6d4;
    --info-bg: rgba(6, 182, 212, 0.12);
    
    --sidebar-width: 270px;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 22px;
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 25px rgba(59, 130, 246, 0.25);
    
    --transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-body);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    font-size: 14px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* Scrollbars */
::-webkit-scrollbar { width: 7px; height: 7px; }
::-webkit-scrollbar-track { background: var(--bg-body); }
::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.15); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, 0.25); }

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 700;
    letter-spacing: -0.02em;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}
a:hover {
    color: #60a5fa;
}

/* ==========================================================================
   Layout: Sidebar & Main Area
   ========================================================================== */

.app-wrapper {
    display: flex;
    width: 100%;
    min-height: 100vh;
}

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

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

.brand-logo {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-size: 1.25rem;
    box-shadow: var(--shadow-glow);
}

.brand-text h2 {
    font-size: 1.05rem;
    font-weight: 700;
    background: linear-gradient(to right, #ffffff, #cbd5e1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-text span {
    font-size: 0.72rem;
    color: var(--info);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
}

.sidebar-nav {
    flex: 1;
    padding: 20px 14px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-section-title {
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.09em;
    color: var(--text-muted);
    font-weight: 700;
    padding: 14px 12px 6px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.88rem;
    transition: var(--transition);
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
}

.nav-link.active {
    background: var(--accent-gradient);
    color: #ffffff;
    box-shadow: var(--shadow-glow);
    font-weight: 600;
}

.nav-link svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    opacity: 0.85;
}

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

.nav-badge {
    margin-left: auto;
    background: rgba(255, 255, 255, 0.15);
    padding: 2px 7px;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 600;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    background-color: rgba(0, 0, 0, 0.15);
}

.sidebar-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    color: var(--text-muted);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--success);
    box-shadow: 0 0 8px var(--success);
}

/* ==========================================================================
   Main Content Area
   ========================================================================== */

.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.topbar {
    height: 70px;
    padding: 0 32px;
    background-color: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 90;
}

.topbar-title {
    display: flex;
    align-items: center;
    gap: 12px;
}

.topbar-title h1 {
    font-size: 1.28rem;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 14px;
}

.page-container {
    padding: 32px;
    flex: 1;
    max-width: 1440px;
    width: 100%;
}

/* ==========================================================================
   Buttons & Badges
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 9px 18px;
    border-radius: var(--radius-md);
    font-size: 0.86rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--transition);
    text-decoration: none;
    font-family: inherit;
    line-height: 1.2;
}

.btn svg {
    width: 16px;
    height: 16px;
}

.btn-primary {
    background: var(--accent-gradient);
    color: #ffffff;
    box-shadow: 0 2px 10px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.45);
    transform: translateY(-1px);
    color: #ffffff;
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.09);
    border-color: var(--border-hover);
}

.btn-success {
    background-color: var(--success);
    color: #ffffff;
}
.btn-success:hover {
    background-color: #059669;
}

.btn-danger {
    background-color: var(--danger-bg);
    color: #f87171;
    border-color: rgba(239, 68, 68, 0.3);
}
.btn-danger:hover {
    background-color: var(--danger);
    color: #ffffff;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.78rem;
    border-radius: var(--radius-sm);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 9px;
    border-radius: 999px;
    font-size: 0.74rem;
    font-weight: 600;
}

.badge-success { background: var(--success-bg); color: var(--success); border: 1px solid rgba(16, 185, 129, 0.3); }
.badge-warning { background: var(--warning-bg); color: var(--warning); border: 1px solid rgba(245, 158, 11, 0.3); }
.badge-danger  { background: var(--danger-bg);  color: var(--danger);  border: 1px solid rgba(239, 68, 68, 0.3); }
.badge-info    { background: var(--info-bg);    color: var(--info);    border: 1px solid rgba(6, 182, 212, 0.3); }
.badge-muted   { background: rgba(255, 255, 255, 0.06); color: var(--text-muted); border: 1px solid var(--border-color); }

/* ==========================================================================
   Stat Grid Cards
   ========================================================================== */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

.stat-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; height: 3px;
    background: var(--accent-gradient);
    opacity: 0;
    transition: var(--transition);
}

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

.stat-card:hover::before {
    opacity: 1;
}

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

.stat-title {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-icon {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.04);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.stat-icon svg {
    width: 20px;
    height: 20px;
}

.stat-value {
    font-size: 1.85rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.1;
}

.stat-subtitle {
    font-size: 0.78rem;
    color: var(--text-secondary);
}

/* ==========================================================================
   Card & Panel Containers
   ========================================================================== */

.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.card-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: rgba(255, 255, 255, 0.015);
}

.card-title {
    font-size: 1.05rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-body {
    padding: 24px;
}

/* ==========================================================================
   Forms & Controls
   ========================================================================== */

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 7px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-label span.req {
    color: var(--danger);
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.88rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

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

.form-help {
    font-size: 0.76rem;
    color: var(--text-muted);
    margin-top: 5px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
}

/* ==========================================================================
   Copyable URL Widget (For Facebook Developer Setup)
   ========================================================================== */

.copy-widget {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.copy-widget-content {
    overflow: hidden;
    flex: 1;
}

.copy-widget-label {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    font-weight: 700;
    margin-bottom: 2px;
}

.copy-widget-url {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.82rem;
    color: var(--info);
    word-break: break-all;
}

/* ==========================================================================
   Tables
   ========================================================================== */

.table-responsive {
    overflow-x: auto;
    width: 100%;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.86rem;
    text-align: left;
}

.table th {
    background-color: rgba(255, 255, 255, 0.02);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.74rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 12px 18px;
    border-bottom: 1px solid var(--border-color);
}

.table td {
    padding: 14px 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    color: var(--text-secondary);
    vertical-align: middle;
}

.table tr:hover td {
    background-color: rgba(255, 255, 255, 0.02);
    color: var(--text-primary);
}

.table-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
}

/* ==========================================================================
   Alerts & Notifications
   ========================================================================== */

.alert {
    padding: 14px 18px;
    border-radius: var(--radius-md);
    margin-bottom: 22px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.88rem;
}

.alert-success { background: var(--success-bg); border: 1px solid rgba(16, 185, 129, 0.3); color: #34d399; }
.alert-error, .alert-danger { background: var(--danger-bg); border: 1px solid rgba(239, 68, 68, 0.3); color: #f87171; }
.alert-warning { background: var(--warning-bg); border: 1px solid rgba(245, 158, 11, 0.3); color: #fbbf24; }
.alert-info { background: var(--info-bg); border: 1px solid rgba(6, 182, 212, 0.3); color: #38bdf8; }

/* ==========================================================================
   Dropzone (Bulk Media Upload)
   ========================================================================== */

.upload-dropzone {
    border: 2px dashed rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-lg);
    padding: 36px 20px;
    text-align: center;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.015);
    transition: var(--transition);
}

.upload-dropzone:hover, .upload-dropzone.dragover {
    border-color: var(--primary);
    background: rgba(59, 130, 246, 0.04);
}

.dropzone-icon {
    width: 52px;
    height: 52px;
    margin: 0 auto 12px;
    color: var(--primary);
    opacity: 0.8;
}

.dropzone-icon svg { width: 100%; height: 100%; }

.media-queue-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 12px;
    margin-top: 18px;
}

.media-queue-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 1;
    border: 1px solid var(--border-color);
    background: #000;
}

.media-queue-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.media-queue-item .queue-status {
    position: absolute;
    top: 6px;
    left: 6px;
    font-size: 0.65rem;
    padding: 2px 6px;
    border-radius: 4px;
}

/* ==========================================================================
   Toast System
   ========================================================================== */

#toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px 18px;
    color: var(--text-primary);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 280px;
    animation: toastSlide 0.3s ease forwards;
}

@keyframes toastSlide {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Modals
   ========================================================================== */

.modal-backdrop {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.modal-backdrop.show {
    opacity: 1;
    pointer-events: auto;
}

.modal-dialog {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 620px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transform: scale(0.95);
    transition: transform 0.2s ease;
}

.modal-backdrop.show .modal-dialog {
    transform: scale(1);
}

.modal-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    background: rgba(255, 255, 255, 0.015);
}

/* Responsive */
@media (max-width: 900px) {
    .sidebar { width: 70px; }
    .brand-text, .nav-section-title, .sidebar-status span, .nav-link span, .nav-badge { display: none; }
    .sidebar-brand { justify-content: center; padding: 18px 0; }
    .nav-link { justify-content: center; padding: 12px; }
    .main-content { margin-left: 70px; }
    .page-container { padding: 20px; }
}