@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

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

:root {
  --bg: #0a0e17;
  --surface: #111827;
  --surface-2: #1a2332;
  --border: #1e293b;
  --primary: #25D366;
  --primary-hover: #128C7E;
  --primary-light: rgba(37,211,102,0.1);
  --accent: #00a884;
  --text: #e2e8f0;
  --text-2: #94a3b8;
  --text-muted: #64748b;
  --danger: #ef4444;
  --warning: #f59e0b;
  --success: #10b981;
  --info: #3b82f6;
  --sidebar-w: 260px;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --transition: 0.2s ease;
}

html { font-size: 15px; scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; overflow-x: hidden; }

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

/* ─── Sidebar ───────────────────────────────────────────────────────────────── */
.sidebar {
  position: fixed; top: 0; left: 0; width: var(--sidebar-w); height: 100vh;
  background: linear-gradient(180deg, #0d1526 0%, #0a1020 100%);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  z-index: 100; overflow-y: auto;
  transition: transform var(--transition);
}
.sidebar-header {
  padding: 28px 24px 20px;
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.logo { font-size: 40px; line-height: 1; margin-bottom: 8px; filter: drop-shadow(0 0 10px rgba(37,211,102,0.4)); }
.sidebar-header h2 { font-size: 1.1rem; font-weight: 700; color: var(--text); letter-spacing: -0.3px; }
.sidebar-header .subtitle { font-size: 0.72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1.5px; margin-top: 2px; }

.nav-links { flex: 1; padding: 16px 12px; display: flex; flex-direction: column; gap: 4px; }
.nav-section { font-size: 0.65rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1.5px; padding: 12px 12px 6px; }
.nav-link {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 14px; border-radius: var(--radius-sm);
  color: var(--text-2); text-decoration: none; font-size: 0.88rem; font-weight: 500;
  transition: all var(--transition); cursor: pointer; border: none; background: transparent; width: 100%;
}
.nav-link:hover { background: var(--primary-light); color: var(--text); }
.nav-link.active { background: var(--primary-light); color: var(--primary); border-left: 3px solid var(--primary); }
.nav-link .nav-icon { font-size: 1.1rem; width: 20px; flex-shrink: 0; }

.sidebar-footer { padding: 16px 20px; border-top: 1px solid var(--border); }
.connection-status { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; font-size: 0.82rem; color: var(--text-2); }
.copyright { font-size: 0.7rem; color: var(--text-muted); text-align: center; }

/* ─── Status Indicator ──────────────────────────────────────────────────────── */
.status-indicator {
  width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0;
  background: var(--text-muted);
  box-shadow: 0 0 0 0 rgba(100,116,139,0.4);
}
.status-indicator.connected { background: var(--primary); box-shadow: 0 0 0 3px rgba(37,211,102,0.2); animation: pulse 2s infinite; }
.status-indicator.disconnected { background: var(--danger); }
.status-indicator.connecting { background: var(--warning); animation: pulse 1s infinite; }

/* ─── Main Content ──────────────────────────────────────────────────────────── */
.main-content { margin-left: var(--sidebar-w); min-height: 100vh; display: flex; flex-direction: column; }

/* ─── Header ────────────────────────────────────────────────────────────────── */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10,14,23,0.9); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0 28px; height: 64px;
  display: flex; align-items: center; justify-content: space-between;
}
.header-left { display: flex; align-items: center; gap: 16px; }
.header-left h1 { font-size: 1.15rem; font-weight: 600; color: var(--text); }
.header-right { display: flex; align-items: center; gap: 12px; }
.user-info { font-size: 0.85rem; color: var(--text-2); }
.hamburger { display: none; background: none; border: none; color: var(--text); font-size: 1.4rem; cursor: pointer; }

/* ─── Section ───────────────────────────────────────────────────────────────── */
.section { display: none; padding: 28px; animation: fadeIn 0.3s ease; }
.section.active { display: block; }
.section-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; flex-wrap: wrap; gap: 12px; }
.section-title { font-size: 1.3rem; font-weight: 700; }

/* ─── Cards ─────────────────────────────────────────────────────────────────── */
.card {
  background: rgba(17,24,39,0.8); backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius); padding: 24px;
  box-shadow: var(--shadow); margin-bottom: 20px;
  transition: border-color var(--transition), transform var(--transition);
}
.card:hover { border-color: rgba(37,211,102,0.15); }
.card-title { font-size: 0.95rem; font-weight: 600; color: var(--text); margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }

/* Stat cards */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; display: flex; align-items: center; gap: 16px;
  transition: all var(--transition); cursor: default;
}
.stat-card:hover { border-color: var(--primary); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(37,211,102,0.1); }
.stat-icon { font-size: 2rem; width: 52px; height: 52px; border-radius: 12px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.stat-icon.green { background: rgba(37,211,102,0.12); }
.stat-icon.blue { background: rgba(59,130,246,0.12); }
.stat-icon.orange { background: rgba(245,158,11,0.12); }
.stat-icon.red { background: rgba(239,68,68,0.12); }
.stat-body {}
.stat-value { font-size: 1.8rem; font-weight: 800; line-height: 1; margin-bottom: 4px; }
.stat-label { font-size: 0.78rem; color: var(--text-muted); font-weight: 500; text-transform: uppercase; letter-spacing: 0.5px; }

/* ─── Grid 2 col ─────────────────────────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

/* ─── Buttons ───────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 18px; border-radius: 8px; border: none;
  font-size: 0.85rem; font-weight: 600; cursor: pointer;
  transition: all var(--transition); white-space: nowrap;
  text-decoration: none;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-hover)); color: #fff; box-shadow: 0 4px 12px rgba(37,211,102,0.3); }
.btn-primary:hover { box-shadow: 0 6px 20px rgba(37,211,102,0.45); transform: translateY(-1px); }
.btn-secondary { background: var(--surface-2); color: var(--text-2); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--border); color: var(--text); }
.btn-danger { background: rgba(239,68,68,0.15); color: var(--danger); border: 1px solid rgba(239,68,68,0.3); }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn-info { background: rgba(59,130,246,0.15); color: var(--info); border: 1px solid rgba(59,130,246,0.3); }
.btn-info:hover { background: var(--info); color: #fff; }
.btn-sm { padding: 6px 12px; font-size: 0.78rem; }
.btn-icon { padding: 8px; border-radius: var(--radius-sm); aspect-ratio: 1; }

/* ─── Forms ─────────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 0.82rem; font-weight: 500; color: var(--text-2); margin-bottom: 6px; }
.form-control {
  width: 100%; padding: 10px 14px; border-radius: var(--radius-sm);
  background: var(--surface-2); border: 1px solid var(--border);
  color: var(--text); font-size: 0.88rem; font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,211,102,0.15); }
.form-control::placeholder { color: var(--text-muted); }
textarea.form-control { resize: vertical; min-height: 100px; line-height: 1.5; }
select.form-control option { background: var(--surface-2); }
.form-hint { font-size: 0.75rem; color: var(--text-muted); margin-top: 4px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* Filter bar */
.filter-bar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }
.filter-bar .form-control { width: auto; min-width: 140px; }

/* ─── Table ─────────────────────────────────────────────────────────────────── */
.table-container { overflow-x: auto; border-radius: var(--radius-sm); border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
thead th {
  background: var(--surface-2); padding: 12px 14px;
  text-align: left; font-weight: 600; font-size: 0.72rem;
  text-transform: uppercase; letter-spacing: 0.8px; color: var(--text-muted);
  white-space: nowrap;
}
tbody tr { border-bottom: 1px solid var(--border); transition: background var(--transition); }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: rgba(255,255,255,0.02); }
tbody td { padding: 12px 14px; color: var(--text-2); vertical-align: middle; }
.msg-preview { max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text); }
.td-actions { display: flex; gap: 6px; }

/* ─── Badges ────────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 9px; border-radius: 20px; font-size: 0.72rem; font-weight: 600;
}
.badge-success { background: rgba(16,185,129,0.15); color: var(--success); border: 1px solid rgba(16,185,129,0.25); }
.badge-warning { background: rgba(245,158,11,0.15); color: var(--warning); border: 1px solid rgba(245,158,11,0.25); }
.badge-danger { background: rgba(239,68,68,0.15); color: var(--danger); border: 1px solid rgba(239,68,68,0.25); }
.badge-info { background: rgba(59,130,246,0.15); color: var(--info); border: 1px solid rgba(59,130,246,0.25); }
.badge-muted { background: rgba(100,116,139,0.15); color: var(--text-muted); border: 1px solid rgba(100,116,139,0.25); }
.badge-primary { background: var(--primary-light); color: var(--primary); border: 1px solid rgba(37,211,102,0.25); }

/* ─── Pagination ────────────────────────────────────────────────────────────── */
.pagination { display: flex; align-items: center; gap: 6px; margin-top: 16px; flex-wrap: wrap; }
.pagination .page-info { color: var(--text-muted); font-size: 0.82rem; margin: 0 8px; }
.page-btn { padding: 6px 12px; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--surface-2); color: var(--text-2); cursor: pointer; font-size: 0.82rem; transition: all var(--transition); }
.page-btn:hover { border-color: var(--primary); color: var(--primary); }
.page-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ─── Modal ─────────────────────────────────────────────────────────────────── */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,0.7); backdrop-filter: blur(4px);
  z-index: 200; display: flex; align-items: center; justify-content: center; padding: 16px;
  animation: fadeIn 0.2s ease;
}
.modal-box {
  background: #111827; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px; width: 100%; max-width: 560px;
  max-height: 90vh; overflow-y: auto; box-shadow: 0 24px 48px rgba(0,0,0,0.6);
  animation: slideUp 0.25s ease;
}
.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.modal-title { font-size: 1.05rem; font-weight: 700; }
.modal-close { background: none; border: none; color: var(--text-muted); font-size: 1.4rem; cursor: pointer; line-height: 1; transition: color var(--transition); }
.modal-close:hover { color: var(--text); }
.modal-footer { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border); }

/* ─── Toast ─────────────────────────────────────────────────────────────────── */
#toast-container { position: fixed; top: 20px; right: 20px; z-index: 1000; display: flex; flex-direction: column; gap: 10px; }
.toast {
  min-width: 280px; max-width: 400px; padding: 14px 18px;
  border-radius: var(--radius-sm); border-left: 4px solid var(--primary);
  background: var(--surface-2); box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  display: flex; align-items: center; gap: 10px;
  animation: slideIn 0.3s ease;
  font-size: 0.88rem;
}
.toast.toast-success { border-color: var(--success); }
.toast.toast-error { border-color: var(--danger); }
.toast.toast-warning { border-color: var(--warning); }
.toast .toast-icon { font-size: 1.1rem; flex-shrink: 0; }
.toast .toast-msg { flex: 1; color: var(--text); }

/* ─── Chart ─────────────────────────────────────────────────────────────────── */
.chart-container { position: relative; height: 220px; }

/* ─── Empty state ───────────────────────────────────────────────────────────── */
.empty-state { text-align: center; padding: 48px 20px; color: var(--text-muted); }
.empty-state .empty-icon { font-size: 3rem; margin-bottom: 12px; opacity: 0.5; }
.empty-state p { font-size: 0.9rem; }

/* ─── Loading ───────────────────────────────────────────────────────────────── */
.spinner { display: inline-block; width: 20px; height: 20px; border: 2px solid var(--border); border-top-color: var(--primary); border-radius: 50%; animation: spin 0.7s linear infinite; }

/* ─── Webhook URL card ──────────────────────────────────────────────────────── */
.webhook-url-box { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px 16px; font-family: monospace; font-size: 0.82rem; word-break: break-all; color: var(--primary); margin: 8px 0; }

/* ─── Variable chips ────────────────────────────────────────────────────────── */
.var-chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0; }
.var-chip { padding: 4px 10px; border-radius: 20px; background: var(--primary-light); color: var(--primary); border: 1px solid rgba(37,211,102,0.2); font-size: 0.75rem; font-weight: 600; cursor: pointer; transition: all var(--transition); }
.var-chip:hover { background: var(--primary); color: #fff; }

/* ─── Template preview ──────────────────────────────────────────────────────── */
.tpl-preview { background: #1a2332; border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px; min-height: 80px; font-size: 0.85rem; color: var(--text); white-space: pre-wrap; word-break: break-word; }

/* ─── Template cards ────────────────────────────────────────────────────────── */
.templates-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.tpl-card { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; transition: all var(--transition); }
.tpl-card:hover { border-color: var(--primary); transform: translateY(-2px); }
.tpl-card-name { font-weight: 700; font-size: 0.95rem; margin-bottom: 4px; }
.tpl-card-desc { font-size: 0.75rem; color: var(--text-muted); margin-bottom: 10px; }
.tpl-card-body { font-size: 0.8rem; color: var(--text-2); background: var(--bg); border-radius: var(--radius-sm); padding: 10px; white-space: pre-wrap; max-height: 80px; overflow: hidden; margin-bottom: 12px; }
.tpl-card-footer { display: flex; gap: 8px; }

/* ─── QR area ───────────────────────────────────────────────────────────────── */
.qr-area { text-align: center; padding: 20px; }
.qr-area img { max-width: 220px; border-radius: 12px; border: 3px solid var(--primary); }

/* ─── Keyframes ─────────────────────────────────────────────────────────────── */
@keyframes fadeIn { from { opacity:0; } to { opacity:1; } }
@keyframes slideIn { from { opacity:0; transform:translateX(40px); } to { opacity:1; transform:translateX(0); } }
@keyframes slideUp { from { opacity:0; transform:translateY(20px); } to { opacity:1; transform:translateY(0); } }
@keyframes pulse { 0%,100%{ box-shadow:0 0 0 3px rgba(37,211,102,0.2); } 50%{ box-shadow:0 0 0 6px rgba(37,211,102,0); } }
@keyframes shake { 0%,100%{transform:translateX(0)} 20%,60%{transform:translateX(-8px)} 40%,80%{transform:translateX(8px)} }
@keyframes spin { to { transform:rotate(360deg); } }

/* ─── Responsive ────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .hamburger { display: block; }
  .grid-2 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 16px; }
}