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

/* ─── Variables (Clean Light UI) ─── */
:root {
  --bg-base: #f0f2f5; /* Warna bg mirip WA Web */
  --bg-surface: #ffffff;
  --glass: rgba(255, 255, 255, 0.7);
  --glass-hover: rgba(255, 255, 255, 0.9);
  --border: #e2e8f0;
  --border-bright: #cbd5e1;

  --green: #25D366;
  --green-dark: #128C7E;
  --green-glow: rgba(37, 211, 102, 0.1);
  --purple: #7c3aed;
  --red: #ef4444;
  --yellow: #f59e0b;
  --blue: #3b82f6;

  --text: #1e293b;
  --text-muted: #64748b;
  --text-dim: #94a3b8;

  --sidebar-width: 260px;
  --sidebar-collapsed: 72px;
  --topbar-height: 70px;
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.025);
}

/* ─── Utilities ─── */
.hidden { display: none !important; }
.mb-4 { margin-bottom: 16px; }

/* ─── Reset ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  height: 100%;
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg-base);
  color: var(--text);
  overflow: hidden;
  font-size: 15px;
  line-height: 1.6;
}

/* ─── Scrollbar ─── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* ─── Layout ─── */
.app-wrapper {
  display: flex;
  height: 100vh;
  position: relative;
  z-index: 1;
}

/* ─── Sidebar ─── */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transition: width var(--transition), min-width var(--transition);
  position: relative;
  z-index: 100;
  box-shadow: var(--shadow-md);
}

.sidebar.collapsed { width: var(--sidebar-collapsed); min-width: var(--sidebar-collapsed); }

.sidebar-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px; border-bottom: 1px solid var(--border);
  height: var(--topbar-height);
}

.logo { display: flex; align-items: center; gap: 12px; white-space: nowrap; overflow: hidden; }
.logo-icon { font-size: 26px; flex-shrink: 0; color: var(--green); filter: drop-shadow(0 2px 4px rgba(37,211,102,0.3)); }
.logo-text { font-size: 18px; font-weight: 800; color: var(--text); opacity: 1; transition: opacity var(--transition); letter-spacing: -0.5px; }
.sidebar.collapsed .logo-text { opacity: 0; pointer-events: none; }

.sidebar-toggle {
  background: #f8fafc; border: 1px solid var(--border); color: var(--text-muted);
  border-radius: var(--radius-sm); width: 34px; height: 34px;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  font-size: 16px; flex-shrink: 0; transition: all var(--transition);
}
.sidebar-toggle:hover { background: #f1f5f9; color: var(--text); }

/* Nav */
.sidebar-nav { flex: 1; padding: 16px 12px; display: flex; flex-direction: column; gap: 4px; overflow-y: auto; overflow-x: hidden; }
.nav-item {
  display: flex; align-items: center; gap: 14px; padding: 12px 14px;
  border-radius: var(--radius-sm); text-decoration: none; color: var(--text-muted);
  white-space: nowrap; transition: all 0.2s ease; cursor: pointer; user-select: none;
  font-weight: 500; position: relative;
}
.nav-item:hover { background: #f8fafc; color: var(--text); transform: translateX(2px); }
.nav-item.active { background: var(--green-glow); color: var(--green-dark); font-weight: 600; }
.nav-item.active .nav-icon { color: var(--green); }
.nav-icon { font-size: 18px; width: 24px; text-align: center; display: inline-block; flex-shrink: 0; }
.sidebar.collapsed .nav-label { opacity: 0; pointer-events: none; }

.sidebar-footer { padding: 16px; border-top: 1px solid var(--border); background: #f8fafc; }

/* ─── WA Status Badge ─── */
.wa-status-badge {
  display: flex; align-items: center; gap: 10px; background: var(--bg-surface);
  padding: 10px 14px; border-radius: 99px; border: 1px solid var(--border);
  box-shadow: var(--shadow-sm); white-space: nowrap; overflow: hidden;
}
.status-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.status-dot.connected { background: var(--green); box-shadow: 0 0 8px var(--green); }
.status-dot.disconnected { background: var(--text-muted); }
.status-dot.connecting { background: var(--yellow); animation: pulse 1.5s infinite; }
.status-dot.banned { background: var(--red); box-shadow: 0 0 8px var(--red); }
.status-label { font-size: 13px; font-weight: 600; color: var(--text); }
.sidebar.collapsed .status-label { display: none; }

@keyframes pulse { 0% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(1.2); } 100% { opacity: 1; transform: scale(1); } }

/* ─── Main Content ─── */
.main-content { flex: 1; display: flex; flex-direction: column; min-width: 0; position: relative; }

/* Topbar */
.topbar {
  height: var(--topbar-height); padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  background: var(--bg-surface); border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 2px rgba(0,0,0,0.02); z-index: 10;
}
.page-title { font-size: 20px; font-weight: 700; letter-spacing: -0.5px; color: var(--text); }
.topbar-right { display: flex; align-items: center; gap: 16px; }

.connection-pill {
  display: flex; align-items: center; gap: 8px; background: #f8fafc;
  padding: 6px 14px; border-radius: 99px; border: 1px solid var(--border);
  font-size: 13px; font-weight: 600;
}
.clock { font-family: monospace; font-size: 14px; color: var(--text-muted); background: #f1f5f9; padding: 4px 10px; border-radius: 6px; }

.mobile-menu-btn { display: none; background: none; border: none; font-size: 20px; cursor: pointer; color: var(--text); }

/* Pages Container */
.pages-container { flex: 1; overflow-y: auto; overflow-x: hidden; padding: 24px; scroll-behavior: smooth; }
.page { display: none; animation: fadeUp 0.3s cubic-bezier(0.4, 0, 0.2, 1); max-width: 1200px; margin: 0 auto; }
.page.active { display: block; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* ─── Cards ─── */
.card {
  background: var(--bg-surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-sm); padding: 24px; margin-bottom: 24px; transition: box-shadow 0.2s;
}
.card:hover { box-shadow: var(--shadow-md); }
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }
.card-title { font-size: 17px; font-weight: 700; color: var(--text); display: flex; align-items: center; gap: 8px; }

/* ─── 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-surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; display: flex; align-items: center; gap: 16px; box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}
.stat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.stat-icon {
  width: 52px; height: 52px; border-radius: 14px; background: var(--green-glow); color: var(--green-dark);
  display: flex; align-items: center; justify-content: center; font-size: 24px;
}
.stat-value { font-size: 26px; font-weight: 800; color: var(--text); line-height: 1; margin-bottom: 4px; }
.stat-label { font-size: 13px; color: var(--text-muted); font-weight: 500; }

/* ─── Buttons ─── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 20px; border-radius: var(--radius-sm); font-family: inherit; font-size: 14px; font-weight: 600;
  cursor: pointer; transition: all 0.2s; border: none; user-select: none;
}
.btn:active { transform: scale(0.96); }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-primary { background: var(--green); color: white; box-shadow: 0 4px 12px rgba(37,211,102,0.2); }
.btn-primary:hover { background: #1da851; box-shadow: 0 6px 16px rgba(37,211,102,0.3); transform: translateY(-1px); }
.btn-danger { background: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; }
.btn-danger:hover { background: var(--red); color: white; }
.btn-warning { background: #fef3c7; color: #d97706; border: 1px solid #fcd34d; }
.btn-warning:hover { background: var(--yellow); color: white; }
.btn-success { background: #dcfce7; color: #15803d; border: 1px solid #86efac; }
.btn-success:hover { background: #22c55e; color: white; }
.btn-ghost { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.btn-ghost:hover { background: #f1f5f9; color: var(--text); }

/* ─── Forms ─── */
.form-section { max-width: 700px; }
.form-group { margin-bottom: 20px; display: flex; flex-direction: column; }
.form-group label { margin-bottom: 8px; font-size: 14px; font-weight: 600; color: var(--text); display: flex; align-items: center; justify-content: space-between; }
.form-hint { font-size: 12.5px; color: var(--text-muted); margin-top: 6px; line-height: 1.4; }

input[type="text"], input[type="password"], input[type="number"], input[type="url"], select, textarea {
  width: 100%; padding: 12px 16px; background: #f8fafc; border: 1px solid var(--border);
  color: var(--text); border-radius: var(--radius-sm); font-family: inherit; font-size: 14.5px;
  transition: all 0.2s; outline: none; box-shadow: inset 0 1px 2px rgba(0,0,0,0.02);
}
input:focus, select:focus, textarea:focus { background: #ffffff; border-color: var(--green); box-shadow: 0 0 0 3px var(--green-glow); }
textarea { resize: vertical; line-height: 1.5; }

/* ─── Toggle Switch ─── */
.toggle-row { display: flex; justify-content: space-between; align-items: center; padding: 16px; background: #f8fafc; border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 12px; }
.toggle-info strong { display: block; font-size: 14.5px; margin-bottom: 4px; }
.toggle-info small { color: var(--text-muted); font-size: 13px; }
.toggle-switch { position: relative; width: 44px; height: 24px; cursor: pointer; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-track { position: absolute; inset: 0; background: #cbd5e1; border-radius: 24px; transition: 0.3s; }
.toggle-track:before { content: ""; position: absolute; height: 18px; width: 18px; left: 3px; bottom: 3px; background: white; border-radius: 50%; transition: 0.3s; box-shadow: 0 2px 4px rgba(0,0,0,0.1); }
input:checked + .toggle-track { background: var(--green); }
input:checked + .toggle-track:before { transform: translateX(20px); }

/* ─── Log Container ─── */
.log-container { height: 260px; overflow-y: auto; background: #f8fafc; padding: 16px; border-radius: var(--radius-sm); font-family: monospace; font-size: 13px; color: #334155; border: 1px solid var(--border); }
.log-line { margin-bottom: 6px; border-bottom: 1px solid var(--border); padding-bottom: 6px; }
.log-time { color: #94a3b8; margin-right: 8px; }
.log-msg.error { color: #dc2626; }
.log-msg.success { color: #16a34a; }
.log-empty { color: #94a3b8; text-align: center; margin-top: 40px; font-style: italic; }

/* ─── QR Section ─── */
.connect-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.qr-wrapper { text-align: center; padding: 24px 0; display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 300px; }
.qr-image { width: 260px; height: 260px; padding: 16px; background: white; border-radius: 20px; box-shadow: 0 8px 24px rgba(0,0,0,0.08); margin-bottom: 16px; display: none; border: 1px solid var(--border); animation: zoomIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275); }
.qr-image.visible { display: block; }
.qr-placeholder { width: 260px; height: 260px; background: #f8fafc; border-radius: 20px; display: flex; flex-direction: column; justify-content: center; align-items: center; margin-bottom: 16px; border: 2px dashed #cbd5e1; }
.spinner { width: 40px; height: 40px; border: 4px solid var(--border); border-top-color: var(--green); border-radius: 50%; animation: spin 1s linear infinite; margin-bottom: 12px; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes zoomIn { from { opacity: 0; transform: scale(0.9); } to { opacity: 1; transform: scale(1); } }
.qr-caption { font-size: 14px; color: var(--text-muted); }

/* Connected Account Info inside QR Card */
.qr-connected-info {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  padding: 20px; animation: zoomIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.qr-connected-avatar {
  width: 96px; height: 96px; border-radius: 50%; overflow: hidden;
  border: 3px solid var(--green); box-shadow: 0 4px 16px rgba(37, 211, 102, 0.2);
  position: relative; background: #f0f2f5;
}
.qr-connected-avatar img {
  width: 100%; height: 100%; object-fit: cover; display: block;
}
.qr-connected-avatar-fallback {
  width: 100%; height: 100%; display: flex; align-items: center; justify-content: center;
  font-size: 40px; background: linear-gradient(135deg, #e8f5e9, #c8e6c9); color: var(--green-dark);
}
.qr-connected-name {
  font-size: 20px; font-weight: 700; color: var(--text); margin: 4px 0 0;
}
.qr-connected-number {
  font-size: 15px; color: var(--text-muted); font-weight: 400; letter-spacing: 0.5px;
}
.qr-connected-badge {
  display: inline-block; padding: 5px 16px; border-radius: 20px; font-size: 13px; font-weight: 600;
  background: linear-gradient(135deg, #e8f5e9, #c8e6c9); color: var(--green-dark);
  margin-top: 4px;
}

/* ─── Tables ─── */
.table-wrapper { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-sm); }
table { width: 100%; border-collapse: collapse; text-align: left; font-size: 14px; }
th, td { padding: 14px 16px; border-bottom: 1px solid var(--border); }
th { background: #f8fafc; font-weight: 600; color: var(--text-muted); text-transform: uppercase; font-size: 12px; letter-spacing: 0.5px; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #f1f5f9; }
.badge { display: inline-block; padding: 4px 10px; border-radius: 99px; font-size: 12px; font-weight: 600; text-transform: capitalize; }
.badge.sent { background: #dcfce7; color: #166534; border: 1px solid #bbf7d0; }
.badge.failed { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.badge.received { background: #dbeafe; color: #1e40af; border: 1px solid #bfdbfe; }
.badge.pending { background: #fef3c7; color: #92400e; border: 1px solid #fde68a; }

/* ─── Status Big Display ─── */
.status-big-display { text-align: center; padding: 30px 20px; background: #f8fafc; border-radius: var(--radius-sm); border: 1px solid var(--border); }
.status-badge-big { display: inline-flex; align-items: center; gap: 12px; font-size: 24px; font-weight: 800; padding: 12px 24px; border-radius: 99px; border: 2px solid transparent; background: white; box-shadow: var(--shadow-sm); }
.status-badge-big.connected { color: var(--green-dark); border-color: var(--green); }
.status-badge-big.disconnected { color: var(--text-muted); border-color: var(--border-bright); }
.status-msg { margin-top: 12px; font-size: 15px; color: var(--text-muted); }

/* ─── Alerts ─── */
.alert { padding: 16px; border-radius: var(--radius-sm); margin-bottom: 16px; font-weight: 500; font-size: 14px; display: flex; align-items: center; gap: 10px; animation: slideIn 0.3s; }
.alert-error { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.alert-success { background: #dcfce7; color: #166534; border: 1px solid #bbf7d0; }
.alert-info { background: #dbeafe; color: #1e40af; border: 1px solid #bfdbfe; }
@keyframes slideIn { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }

/* ─── Responsive ─── */
@media (max-width: 900px) {
  .connect-layout { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .sidebar { position: fixed; left: -var(--sidebar-width); z-index: 1000; box-shadow: 10px 0 30px rgba(0,0,0,0.1); }
  .sidebar.mobile-open { left: 0; }
  .mobile-menu-btn { display: block; }
  .sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 999; backdrop-filter: blur(2px); }
  .sidebar-overlay.active { display: block; }
  .sidebar-toggle { display: none; }
  .pages-container { padding: 16px; }
  .topbar { padding: 0 16px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .clock { display: none; }
}

/* ─── Login Screen ─── */
.login-screen { position: fixed; inset: 0; background: #e2e8f0; display: flex; align-items: center; justify-content: center; z-index: 2000; padding: 20px; }
.login-box { background: var(--bg-surface); padding: 40px; border-radius: 20px; width: 100%; max-width: 420px; box-shadow: 0 20px 40px rgba(0,0,0,0.1); text-align: center; border: 1px solid var(--border); }
.login-logo { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.login-logo .logo-text { font-size: 24px; color: var(--green-dark); font-weight: 800; }
.login-logo .logo-icon { font-size: 32px; }
.login-subtitle { color: var(--text-muted); margin-bottom: 30px; font-size: 15px; }
.login-form { text-align: left; }
.login-btn { width: 100%; padding: 14px; font-size: 16px; border-radius: 12px; margin-top: 10px; }