/* ═══════════════════════════════════════════════════════════════
   InstaBot Admin — Premium Design System
   ═══════════════════════════════════════════════════════════════ */

:root {
    --bg-primary: #0f1117;
    --bg-secondary: #161a25;
    --bg-card: #1c2030;
    --bg-card-hover: #222740;
    --bg-input: #1a1e2e;
    --border: #2a2f45;
    --border-focus: #6c5ce7;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-purple: #6c5ce7;
    --accent-blue: #0984e3;
    --accent-green: #00cec9;
    --accent-orange: #f39c12;
    --accent-red: #e74c3c;
    --accent-pink: #e84393;
    --gradient-purple: linear-gradient(135deg, #6c5ce7, #a855f7);
    --gradient-blue: linear-gradient(135deg, #0984e3, #00b4d8);
    --gradient-green: linear-gradient(135deg, #00cec9, #55efc4);
    --gradient-orange: linear-gradient(135deg, #f39c12, #fd79a8);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
    --shadow-glow: 0 0 20px rgba(108,92,231,0.15);
    --radius: 12px;
    --radius-sm: 8px;
    --sidebar-width: 240px;
    --transition: all 0.2s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ── Sidebar ─────────────────────────────────────────────────── */
.sidebar {
    position: fixed; left: 0; top: 0; bottom: 0;
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex; flex-direction: column;
    z-index: 100;
    transition: transform 0.3s ease;
}

.sidebar-brand {
    padding: 1.5rem;
    display: flex; align-items: center; gap: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.brand-icon {
    width: 36px; height: 36px;
    background: var(--gradient-purple);
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    color: #fff;
}
.brand-icon svg { width: 20px; height: 20px; }
.brand-icon.large { width: 56px; height: 56px; }
.brand-icon.large svg { width: 32px; height: 32px; }

.brand-text {
    font-size: 1.25rem; font-weight: 700;
    background: var(--gradient-purple);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-nav { flex: 1; padding: 1rem 0.75rem; display: flex; flex-direction: column; gap: 4px; }

.nav-item {
    display: flex; align-items: center; gap: 0.75rem;
    padding: 0.7rem 1rem;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem; font-weight: 500;
    transition: var(--transition);
    border: none; background: none; cursor: pointer; width: 100%; text-align: left;
}
.nav-item svg { width: 20px; height: 20px; flex-shrink: 0; }
.nav-item:hover { background: var(--bg-card); color: var(--text-primary); }
.nav-item.active { background: rgba(108,92,231,0.15); color: var(--accent-purple); }

.sidebar-footer { padding: 0.75rem; border-top: 1px solid var(--border); }
.logout-btn { color: var(--accent-red) !important; }

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

.top-bar {
    padding: 1rem 2rem;
    display: flex; align-items: center; gap: 1rem;
    border-bottom: 1px solid var(--border);
    background: rgba(15,17,23,0.8);
    backdrop-filter: blur(12px);
    position: sticky; top: 0; z-index: 50;
}

.page-title { font-size: 1.25rem; font-weight: 700; flex: 1; }
.mobile-toggle { display: none; background: none; border: none; color: var(--text-primary); cursor: pointer; }
.mobile-toggle svg { width: 24px; height: 24px; }

.user-badge {
    padding: 0.4rem 0.9rem; border-radius: 20px;
    background: var(--bg-card); border: 1px solid var(--border);
    font-size: 0.8rem; color: var(--text-secondary); font-weight: 500;
}

.content-area { padding: 2rem; }

.top-bar-right { display: flex; align-items: center; gap: 1rem; }

/* ── Cards ───────────────────────────────────────────────────── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition);
}

.card-header {
    padding: 1.25rem 1.5rem;
    display: flex; align-items: center; justify-content: space-between;
    border-bottom: 1px solid var(--border);
}
.card-header h3 { font-size: 1rem; font-weight: 600; }
.card-body { padding: 1.5rem; }
.card-body.no-padding { padding: 0; }
.card-footer { padding: 1rem 1.5rem; border-top: 1px solid var(--border); display: flex; justify-content: center; }

/* ── Stats Grid ──────────────────────────────────────────────── */
.stats-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem; margin-bottom: 1.5rem;
}

.stat-card {
    border-radius: var(--radius); padding: 1.5rem;
    display: flex; align-items: center; gap: 1rem;
    position: relative; overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

.stat-card::before {
    content: ''; position: absolute; inset: 0;
    opacity: 0.12; border-radius: var(--radius);
}
.gradient-purple { background: var(--bg-card); border: 1px solid rgba(108,92,231,0.3); }
.gradient-purple::before { background: var(--gradient-purple); }
.gradient-green { background: var(--bg-card); border: 1px solid rgba(0,206,201,0.3); }
.gradient-green::before { background: var(--gradient-green); }
.gradient-blue { background: var(--bg-card); border: 1px solid rgba(9,132,227,0.3); }
.gradient-blue::before { background: var(--gradient-blue); }
.gradient-orange { background: var(--bg-card); border: 1px solid rgba(243,156,18,0.3); }
.gradient-orange::before { background: var(--gradient-orange); }

.stat-icon {
    width: 48px; height: 48px;
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    position: relative; z-index: 1;
}
.gradient-purple .stat-icon { background: rgba(108,92,231,0.2); color: var(--accent-purple); }
.gradient-green .stat-icon { background: rgba(0,206,201,0.2); color: var(--accent-green); }
.gradient-blue .stat-icon { background: rgba(9,132,227,0.2); color: var(--accent-blue); }
.gradient-orange .stat-icon { background: rgba(243,156,18,0.2); color: var(--accent-orange); }
.stat-icon svg { width: 24px; height: 24px; }

.stat-info { position: relative; z-index: 1; }
.stat-value { display: block; font-size: 1.75rem; font-weight: 800; line-height: 1.2; }
.stat-label { font-size: 0.8rem; color: var(--text-muted); font-weight: 500; text-transform: uppercase; letter-spacing: 0.5px; }

/* ── Grid Layouts ────────────────────────────────────────────── */
.grid-2col { display: grid; grid-template-columns: 1.5fr 1fr; gap: 1.5rem; margin-bottom: 1.5rem; }

/* ── Tables ──────────────────────────────────────────────────── */
.table-responsive { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; }
.data-table th { padding: 0.85rem 1.25rem; text-align: left; font-size: 0.75rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 1px solid var(--border); background: var(--bg-secondary); }
.data-table td { padding: 0.85rem 1.25rem; border-bottom: 1px solid var(--border); font-size: 0.875rem; vertical-align: middle; }
.data-table tbody tr { transition: var(--transition); }
.data-table tbody tr:hover { background: var(--bg-card-hover); }
.expandable-row { cursor: pointer; }
.truncate-cell { max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── Detail Rows ─────────────────────────────────────────────── */
.detail-row { display: none; }
.detail-row.show { display: table-row; }
.detail-content { padding: 1rem; background: var(--bg-secondary); border-radius: var(--radius-sm); }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; font-size: 0.8rem; }
.json-block { background: var(--bg-primary); padding: 0.75rem; border-radius: var(--radius-sm); font-size: 0.75rem; overflow-x: auto; margin-top: 0.25rem; color: var(--accent-green); }

/* ── Badges ──────────────────────────────────────────────────── */
.badge { padding: 0.25rem 0.65rem; border-radius: 20px; font-size: 0.7rem; font-weight: 600; display: inline-block; text-transform: uppercase; letter-spacing: 0.3px; }
.badge-received { background: rgba(9,132,227,0.15); color: var(--accent-blue); }
.badge-processing { background: rgba(243,156,18,0.15); color: var(--accent-orange); }
.badge-replied { background: rgba(0,206,201,0.15); color: var(--accent-green); }
.badge-skipped { background: rgba(148,163,184,0.15); color: var(--text-muted); }
.badge-failed { background: rgba(231,76,60,0.15); color: var(--accent-red); }
.badge-info { background: rgba(9,132,227,0.15); color: var(--accent-blue); }
.badge-purple { background: rgba(108,92,231,0.15); color: var(--accent-purple); }
.badge-blue { background: rgba(9,132,227,0.15); color: var(--accent-blue); }

.priority-badge { background: var(--bg-secondary); padding: 0.2rem 0.6rem; border-radius: 6px; font-size: 0.75rem; font-weight: 700; color: var(--accent-purple); border: 1px solid rgba(108,92,231,0.3); }
.keyword-tag { background: rgba(0,206,201,0.1); color: var(--accent-green); padding: 0.2rem 0.6rem; border-radius: 6px; font-size: 0.8rem; border: 1px solid rgba(0,206,201,0.2); }

/* ── Username ────────────────────────────────────────────────── */
.username { font-weight: 600; color: var(--accent-blue); }

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
    padding: 0.65rem 1.25rem; border-radius: var(--radius-sm);
    font-size: 0.875rem; font-weight: 600; font-family: inherit;
    border: none; cursor: pointer; text-decoration: none;
    transition: var(--transition);
}
.btn-primary { background: var(--gradient-purple); color: #fff; box-shadow: 0 2px 10px rgba(108,92,231,0.3); }
.btn-primary:hover { box-shadow: 0 4px 20px rgba(108,92,231,0.5); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--text-secondary); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--text-muted); color: var(--text-primary); }
.btn-sm { padding: 0.4rem 0.75rem; font-size: 0.8rem; }
.btn-full { width: 100%; }

.action-btns { display: flex; gap: 0.25rem; }

/* ── Forms ────────────────────────────────────────────────────── */
.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 0.4rem; }
.required { color: var(--accent-red); }

input[type="text"], input[type="email"], input[type="password"],
input[type="number"], input[type="date"], select, textarea {
    width: 100%; padding: 0.7rem 1rem;
    background: var(--bg-input); border: 1px solid var(--border);
    border-radius: var(--radius-sm); color: var(--text-primary);
    font-family: inherit; font-size: 0.9rem;
    transition: var(--transition);
}
input:focus, select:focus, textarea:focus {
    outline: none; border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(108,92,231,0.15);
}
textarea { resize: vertical; min-height: 80px; }
.form-hint { display: block; font-size: 0.75rem; color: var(--text-muted); margin-top: 0.3rem; }
.form-hint code { background: rgba(108,92,231,0.1); color: var(--accent-purple); padding: 0.1rem 0.4rem; border-radius: 4px; font-size: 0.7rem; }

.form-row { display: flex; gap: 1rem; }
.flex-1 { flex: 1; }
.flex-2 { flex: 2; }

.form-actions { display: flex; gap: 0.75rem; justify-content: flex-end; margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }

/* ── Radio Cards ─────────────────────────────────────────────── */
.radio-cards { display: flex; gap: 1rem; margin-top: 0.5rem; }
.radio-card { flex: 1; cursor: pointer; }
.radio-card input { display: none; }
.radio-card-content {
    padding: 1rem; border: 2px solid var(--border); border-radius: var(--radius);
    text-align: center; transition: var(--transition);
    display: flex; flex-direction: column; align-items: center; gap: 0.25rem;
}
.radio-card input:checked + .radio-card-content { border-color: var(--accent-purple); background: rgba(108,92,231,0.08); }
.radio-card-content:hover { border-color: var(--text-muted); }
.radio-icon { font-size: 1.5rem; }
.radio-title { font-weight: 600; font-size: 0.9rem; }
.radio-desc { font-size: 0.75rem; color: var(--text-muted); }

/* ── Toggle Switch ───────────────────────────────────────────── */
.toggle-switch { position: relative; display: inline-block; width: 42px; height: 24px; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
    position: absolute; inset: 0; background: var(--border); border-radius: 24px;
    cursor: pointer; transition: var(--transition);
}
.toggle-slider::before {
    content: ''; position: absolute; width: 18px; height: 18px;
    left: 3px; bottom: 3px; background: #fff; border-radius: 50%;
    transition: var(--transition);
}
.toggle-switch input:checked + .toggle-slider { background: var(--accent-purple); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(18px); }

/* ── Checkbox ────────────────────────────────────────────────── */
.checkbox-label { display: flex; align-items: center; gap: 0.5rem; cursor: pointer; font-size: 0.9rem; color: var(--text-secondary); }
.checkbox-label input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--accent-purple); }

/* ── Filter Bar ──────────────────────────────────────────────── */
.filter-bar { display: flex; gap: 0.75rem; flex-wrap: wrap; align-items: center; }
.filter-input { max-width: 200px; }
.filter-select { max-width: 150px; }

/* ── Quick Stats ─────────────────────────────────────────────── */
.quick-stat-list { display: flex; flex-direction: column; gap: 0.75rem; }
.quick-stat { display: flex; justify-content: space-between; align-items: center; padding: 0.65rem 0; border-bottom: 1px solid var(--border); }
.quick-stat:last-child { border-bottom: none; }
.qs-label { font-size: 0.85rem; color: var(--text-secondary); }
.qs-value { font-size: 1.1rem; font-weight: 700; }

/* ── Webhook URL Display ─────────────────────────────────────── */
.webhook-url-display {
    display: flex; align-items: center; gap: 0.75rem;
    padding: 0.75rem 1rem; background: var(--bg-input);
    border: 1px solid var(--border); border-radius: var(--radius-sm);
}
.webhook-url-display code { flex: 1; color: var(--accent-green); font-size: 0.85rem; word-break: break-all; }

/* ── Status List ─────────────────────────────────────────────── */
.status-list { display: flex; flex-direction: column; gap: 0.5rem; }
.status-item { display: flex; justify-content: space-between; align-items: center; padding: 0.5rem 0; }

/* ── Tips ─────────────────────────────────────────────────────── */
.tips-list { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; }
.tips-list li { padding: 0.5rem 0.75rem; background: rgba(108,92,231,0.05); border-radius: var(--radius-sm); font-size: 0.85rem; color: var(--text-secondary); border-left: 3px solid var(--accent-purple); }
.tips-list code { background: rgba(0,206,201,0.1); color: var(--accent-green); padding: 0.1rem 0.4rem; border-radius: 4px; font-size: 0.8rem; }

/* ── Cell Stack ──────────────────────────────────────────────── */
.cell-stack { display: flex; flex-direction: column; gap: 2px; }

/* ── Alerts ──────────────────────────────────────────────────── */
.alert { padding: 0.85rem 1.5rem; margin: 0 2rem; margin-top: 1rem; border-radius: var(--radius-sm); display: flex; justify-content: space-between; align-items: center; font-size: 0.9rem; transition: opacity 0.3s ease; }
.alert-success { background: rgba(0,206,201,0.1); border: 1px solid rgba(0,206,201,0.3); color: var(--accent-green); }
.alert-error { background: rgba(231,76,60,0.1); border: 1px solid rgba(231,76,60,0.3); color: var(--accent-red); }
.alert-close { background: none; border: none; color: inherit; cursor: pointer; font-size: 1.2rem; }

/* ── Text Helpers ────────────────────────────────────────────── */
.text-muted { color: var(--text-muted); }
.text-primary { color: var(--text-primary); }
.text-red { color: var(--accent-red); }
.text-green { color: var(--accent-green); }
.text-blue { color: var(--accent-blue); }
.text-yellow { color: var(--accent-orange); }
.text-sm { font-size: 0.8rem; }
.text-xs { font-size: 0.7rem; }
.text-center { text-align: center; }

/* ── Login Page ──────────────────────────────────────────────── */
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--bg-primary); }
.login-container { width: 100%; max-width: 420px; padding: 2rem; }
.login-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 2.5rem; box-shadow: var(--shadow-md);
}
.login-brand { text-align: center; margin-bottom: 2rem; }
.login-brand h1 { font-size: 1.5rem; font-weight: 800; margin-top: 0.75rem; background: var(--gradient-purple); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.login-subtitle { color: var(--text-muted); font-size: 0.85rem; margin-top: 0.25rem; }
.login-brand .brand-icon { margin: 0 auto; }
.login-footer { text-align: center; margin-top: 1.5rem; color: var(--text-muted); font-size: 0.75rem; }

/* ── Pagination ──────────────────────────────────────────────── */
.card-footer nav { display: flex; gap: 0.25rem; }
.card-footer nav a, .card-footer nav span { padding: 0.4rem 0.75rem; border-radius: 6px; font-size: 0.8rem; text-decoration: none; color: var(--text-secondary); background: var(--bg-secondary); border: 1px solid var(--border); }
.card-footer nav span[aria-current] { background: var(--accent-purple); color: #fff; border-color: var(--accent-purple); }
.card-footer nav a:hover { border-color: var(--text-muted); }

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); box-shadow: var(--shadow-md); }
    .main-content { margin-left: 0; }
    .mobile-toggle { display: block; }
    .content-area { padding: 1rem; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .grid-2col { grid-template-columns: 1fr; }
    .form-row { flex-direction: column; }
    .radio-cards { flex-direction: column; }
    .filter-bar { flex-direction: column; }
    .filter-input, .filter-select { max-width: 100%; }
    .detail-grid { grid-template-columns: 1fr; }
}