/* ==========================================================================
   Tracker Click Call - Admin CSS
   - Sidebar layout (desktop) + drawer mobile.
   - Responsive: < 768px → sidebar ẩn, có nút toggle.
   ========================================================================== */

* { box-sizing: border-box; }

:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #eef2ff;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --sidebar-width: 240px;
    --topbar-height: 60px;
    --radius: 8px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 4px 12px rgba(0,0,0,0.06);
}

html, body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--gray-100);
    color: var(--gray-800);
    font-size: 14px;
    line-height: 1.5;
}

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

code { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; background: var(--gray-100); padding: 2px 6px; border-radius: 4px; font-size: 13px; }
pre { font-family: ui-monospace, Consolas, monospace; background: var(--gray-900); color: #e5e7eb; padding: 16px; border-radius: var(--radius); overflow: auto; font-size: 13px; line-height: 1.5; }
pre.code-block { max-height: 360px; }

.muted { color: var(--gray-500); }
.small { font-size: 12px; }
.text-right { text-align: right; }
.text-center { text-align: center; }

/* ====== SIDEBAR ====== */
.sidebar {
    position: fixed;
    top: 0; left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--gray-900);
    color: #d1d5db;
    overflow-y: auto;
    z-index: 100;
    transition: transform 0.25s ease;
}
.sidebar-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    border-bottom: 1px solid #1f2937;
}
.brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; }
.brand-icon { font-size: 22px; }
.brand-text { font-size: 15px; }
.sidebar-close { display: none; background: transparent; border: 0; color: #d1d5db; font-size: 22px; cursor: pointer; }

.sidebar-nav { padding: 12px 0; }
.nav-group { margin-bottom: 18px; }
.nav-group-title { font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; color: #6b7280; padding: 6px 20px; }
.nav-item {
    display: flex; align-items: center; gap: 12px;
    padding: 10px 20px;
    color: #d1d5db;
    font-size: 14px;
    transition: background 0.15s, color 0.15s;
}
.nav-item:hover { background: #1f2937; color: #fff; text-decoration: none; }
.nav-item.active { background: var(--primary); color: #fff; border-left: 3px solid #fff; padding-left: 17px; }
.nav-icon { font-size: 16px; width: 22px; text-align: center; }
.nav-logout { color: #fca5a5; }
.nav-logout:hover { color: #fff; background: #7f1d1d; }

/* ====== CONTENT WRAPPER ====== */
.content-wrapper {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.topbar {
    height: var(--topbar-height);
    background: #fff;
    border-bottom: 1px solid var(--gray-200);
    display: flex; align-items: center;
    padding: 0 24px;
    gap: 16px;
    box-shadow: var(--shadow-sm);
    position: sticky; top: 0;
    z-index: 50;
}
.menu-toggle { display: none; background: transparent; border: 0; font-size: 22px; cursor: pointer; }
.topbar-title { margin: 0; flex: 1; font-size: 18px; font-weight: 600; }
.topbar-user { display: flex; align-items: center; gap: 8px; font-size: 13px; }
.user-name { color: var(--gray-700); font-weight: 500; }
.user-badge { background: var(--warning); color: #fff; padding: 2px 8px; border-radius: 4px; font-size: 11px; font-weight: 700; }

.content { padding: 24px; max-width: 1400px; margin: 0 auto; }

.sidebar-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 99;
    display: none;
}

/* ====== CARDS ====== */
.card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: 18px;
    overflow: hidden;
}
.card-head {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 18px;
    border-bottom: 1px solid var(--gray-100);
}
.card-head h3 { margin: 0; font-size: 15px; font-weight: 600; }
.card-link { font-size: 13px; }
.card-body { padding: 18px; }

/* ====== DASHBOARD STATS ====== */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}
.stat-card {
    background: #fff;
    padding: 18px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    display: flex; align-items: center; gap: 14px;
}
.stat-icon { font-size: 32px; }
.stat-label { font-size: 12px; color: var(--gray-500); text-transform: uppercase; letter-spacing: 0.3px; }
.stat-value { font-size: 26px; font-weight: 700; color: var(--gray-900); }
.stat-detail { font-size: 12px; color: var(--gray-600); margin-top: 2px; }

.dashboard-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 20px;
}

/* ====== TABLES ====== */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--gray-100); vertical-align: middle; }
.data-table th { font-weight: 600; color: var(--gray-700); background: var(--gray-50); font-size: 12px; text-transform: uppercase; letter-spacing: 0.3px; }
.data-table tbody tr:hover { background: var(--gray-50); }
.data-table .actions { display: flex; gap: 4px; flex-wrap: wrap; }

/* ====== FORMS ====== */
.form-card { display: block; }
.field { display: flex; flex-direction: column; margin-bottom: 14px; }
.field label { font-size: 13px; font-weight: 600; margin-bottom: 4px; color: var(--gray-700); }
.field input[type="text"],
.field input[type="email"],
.field input[type="password"],
.field input[type="number"],
.field input[type="date"],
.field select,
.field textarea {
    padding: 10px 12px;
    border: 1px solid var(--gray-300);
    border-radius: 6px;
    font-size: 14px;
    background: #fff;
    transition: border-color 0.15s, box-shadow 0.15s;
}
.field input:focus, .field select:focus, .field textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,0.12);
}
.field small { font-size: 12px; color: var(--gray-500); margin-top: 4px; }
.field textarea { resize: vertical; min-height: 60px; font-family: inherit; }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field-row { margin-bottom: 12px; }
.checkbox { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font-size: 14px; }
.checkbox input { width: 16px; height: 16px; cursor: pointer; }

.password-wrap { position: relative; }
.password-wrap input { width: 100%; padding-right: 40px; }
.password-toggle {
    position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
    background: transparent; border: 0; cursor: pointer; font-size: 18px;
    padding: 4px;
}

/* ====== BUTTONS ====== */
.btn-primary, .btn-secondary, .btn-danger {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 9px 18px;
    border: 0;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: background 0.15s, transform 0.05s;
}
.btn-primary:hover, .btn-secondary:hover, .btn-danger:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary  { background: var(--primary); color: #fff; }
.btn-primary:hover  { background: var(--primary-dark); }
.btn-secondary { background: var(--gray-200); color: var(--gray-800); }
.btn-secondary:hover { background: var(--gray-300); }
.btn-danger  { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #b91c1c; }
.btn-sm {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 4px 8px;
    background: var(--gray-100);
    color: var(--gray-700);
    border: 1px solid var(--gray-200);
    border-radius: 4px;
    text-decoration: none;
    font-size: 14px;
    cursor: pointer;
    min-width: 32px;
    transition: background 0.15s;
}
.btn-sm:hover { background: var(--gray-200); text-decoration: none; }
.btn-sm.btn-danger { background: #fef2f2; color: var(--danger); border-color: #fecaca; }
.btn-sm.btn-danger:hover { background: #fee2e2; }

.form-actions { display: flex; gap: 12px; margin-top: 18px; }

/* ====== PAGE TOOLBAR ====== */
.page-toolbar {
    display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
    margin-bottom: 18px;
}
.page-toolbar label { font-weight: 500; }
.search-form { display: flex; gap: 6px; flex: 1; max-width: 400px; }
.search-form input { flex: 1; padding: 8px 12px; border: 1px solid var(--gray-300); border-radius: 6px; font-size: 14px; }
.page-toolbar select { padding: 8px 12px; border: 1px solid var(--gray-300); border-radius: 6px; font-size: 14px; }

/* ====== FILTER FORM ====== */
.filter-form .filter-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr 1fr;
    gap: 12px;
    align-items: end;
}
.filter-actions { display: flex; gap: 6px; align-items: flex-end; }

/* ====== INLINE FORM (labels.php) ====== */
.inline-form {
    display: flex; gap: 6px; align-items: center; flex-wrap: wrap;
    margin-bottom: 14px;
    padding: 12px;
    background: var(--gray-50);
    border-radius: 6px;
}
.inline-form input, .inline-form select {
    padding: 8px 10px; border: 1px solid var(--gray-300); border-radius: 4px; font-size: 13px;
}
.inline-form input[type="text"] { flex: 1; min-width: 140px; }

/* ====== ALERTS ====== */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 14px;
    font-size: 14px;
    border-left: 4px solid;
}
.alert-success { background: #f0fdf4; border-color: var(--success); color: #14532d; }
.alert-error   { background: #fef2f2; border-color: var(--danger);  color: #7f1d1d; }
.alert-warning { background: #fffbeb; border-color: var(--warning); color: #78350f; }
.alert-info    { background: #eff6ff; border-color: var(--info);    color: #1e3a8a; }
.alert h4 { margin: 0 0 8px 0; }
.alert ul { margin: 4px 0 0 18px; padding: 0; }

/* ====== BADGES ====== */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}
.badge-success  { background: #d1fae5; color: #065f46; }
.badge-danger   { background: #fee2e2; color: #991b1b; }
.badge-warning  { background: #fef3c7; color: #92400e; }
.badge-info     { background: #dbeafe; color: #1e40af; }
.badge-muted    { background: var(--gray-200); color: var(--gray-600); }

/* ====== PAGINATION (Google style) ====== */
.pagination {
    display: flex; align-items: center; gap: 6px;
    margin-top: 18px;
    flex-wrap: wrap;
    justify-content: center;
}
.page-link {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 38px; height: 38px;
    padding: 0 12px;
    background: #fff;
    color: var(--gray-700);
    border: 1px solid var(--gray-200);
    border-radius: 6px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: background 0.15s, color 0.15s;
}
.page-link:hover:not(.disabled):not(.active) { background: var(--primary-light); color: var(--primary); text-decoration: none; }
.page-link.active { background: var(--primary); color: #fff; cursor: default; box-shadow: var(--shadow-sm); }
.page-link.disabled { color: var(--gray-300); cursor: not-allowed; background: var(--gray-50); }
.page-ellipsis { padding: 0 8px; color: var(--gray-400); }

/* ====== BAR CHART (stats.php) ====== */
.bar-chart {
    display: flex; align-items: flex-end; gap: 6px;
    height: 220px;
    padding: 12px 0;
}
.bar-col {
    flex: 1;
    display: flex; flex-direction: column; align-items: center;
    height: 100%; justify-content: flex-end;
    gap: 4px;
}
.bar-fill {
    width: 100%; max-width: 32px;
    background: linear-gradient(180deg, var(--primary), var(--primary-dark));
    border-radius: 4px 4px 0 0;
    transition: opacity 0.15s;
}
.bar-col:hover .bar-fill { opacity: 0.8; }
.bar-count { font-size: 11px; color: var(--gray-700); font-weight: 600; }
.bar-label { font-size: 11px; color: var(--gray-500); }

/* ====== INFO GRID (test-telegram) ====== */
.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    font-size: 14px;
}
.test-buttons { display: flex; gap: 8px; flex-wrap: wrap; }

/* ====== WEBHOOK STATUS ====== */
.webhook-status {
    padding: 12px;
    background: var(--gray-50);
    border-radius: 6px;
    margin-top: 12px;
}
.webhook-status code {
    display: block;
    padding: 8px;
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: 4px;
    word-break: break-all;
    cursor: pointer;
}

.copyable { cursor: pointer; }
.copyable:hover { background: var(--primary-light); }

/* ====== LOGIN PAGE ====== */
.login-body {
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    padding: 20px;
}
.login-wrap { width: 100%; max-width: 420px; }
.login-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
    overflow: hidden;
}
.login-head {
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    color: #fff;
    text-align: center;
    padding: 28px 24px;
}
.login-icon { font-size: 42px; margin-bottom: 8px; }
.login-head h1 { margin: 0 0 4px 0; font-size: 22px; }
.login-head p { margin: 0; opacity: 0.85; font-size: 13px; }
.login-form { padding: 24px; }
.login-form .btn-primary { width: 100%; justify-content: center; padding: 12px; font-size: 15px; }
.login-footer { text-align: center; color: rgba(255,255,255,0.8); font-size: 12px; margin-top: 18px; }

/* ====== RESPONSIVE ====== */
@media (max-width: 1024px) {
    .dashboard-grid { grid-template-columns: repeat(2, 1fr); }
    .filter-form .filter-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); box-shadow: 0 0 30px rgba(0,0,0,0.3); }
    .sidebar-close { display: block; }
    .content-wrapper { margin-left: 0; }
    .menu-toggle { display: block; }
    .sidebar-overlay.active { display: block; }

    .dashboard-grid { grid-template-columns: 1fr; }
    .dashboard-row { grid-template-columns: 1fr; }
    .row-2 { grid-template-columns: 1fr; }
    .info-grid { grid-template-columns: 1fr; }
    .filter-form .filter-grid { grid-template-columns: 1fr; }

    .content { padding: 16px; }
    .topbar { padding: 0 16px; }
    .topbar-title { font-size: 16px; }
    .user-name { display: none; }

    .data-table th, .data-table td { padding: 8px 6px; font-size: 13px; }
    .data-table .actions { gap: 2px; }
}