:root {
  --primary: #6c63ff;
  --primary-dark: #574fd6;
  --success: #28a745;
  --danger: #dc3545;
  --warning: #ffc107;
  --info: #17a2b8;
  --bg: #f4f6fb;
  --card: #ffffff;
  --text: #333;
  --text-muted: #777;
  --border: #e0e0e0;
  --nav-bg: #6c63ff;
  --shadow: 0 2px 12px rgba(108,99,255,0.10);
  /* Mobile safe area for notches/status bar */
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}
body.dark {
  --bg: #1a1a2e;
  --card: #16213e;
  --text: #e0e0e0;
  --text-muted: #aaa;
  --border: #2a2a4a;
  --nav-bg: #0f3460;
  --shadow: 0 2px 12px rgba(0,0,0,0.4);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html {
  /* Enable safe area support */
  padding: env(safe-area-inset-top, 0px) env(safe-area-inset-right, 0px) env(safe-area-inset-bottom, 0px) env(safe-area-inset-left, 0px);
}
body { 
  font-family: 'Segoe UI', sans-serif; 
  background: var(--bg); 
  color: var(--text); 
  min-height: 100vh;
  /* Add top padding for mobile status bar */
  padding-top: env(safe-area-inset-top, 0px);
}

/* Navbar */
.navbar {
  background: var(--nav-bg);
  color: #fff;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  /* Account for mobile status bar */
  height: calc(56px + env(safe-area-inset-top, 0px));
  padding-top: env(safe-area-inset-top, 0px);
  position: sticky;
  top: 0;
  z-index: 200;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.nav-brand { font-size: 1.2rem; font-weight: 700; letter-spacing: 1px; }
.nav-hamburger {
  background: none; border: none; color: #fff;
  font-size: 1.3rem; cursor: pointer; padding: 4px 8px;
  border-radius: 6px; flex-shrink: 0;
}
.nav-hamburger:hover { background: rgba(255,255,255,0.15); }

/* Sidebar Overlay */
.sidebar-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 300;
}
.sidebar-overlay.show { display: block; }

/* Sidebar */
.sidebar {
  position: fixed; top: 0; left: 0; bottom: 0;
  width: 260px;
  background: var(--nav-bg);
  color: #fff;
  z-index: 400;
  transform: translateX(-100%);
  transition: transform 0.3s ease;
  display: flex; flex-direction: column;
  overflow-y: auto;
}
.sidebar.open { transform: translateX(0); box-shadow: 4px 0 24px rgba(0,0,0,0.25); }
.sidebar-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px; border-bottom: 1px solid rgba(255,255,255,0.15);
}
.sidebar-brand { font-size: 1.1rem; font-weight: 700; }
.sidebar-close-btn {
  background: none; border: none; color: #fff;
  font-size: 1.1rem; cursor: pointer; padding: 4px 8px; border-radius: 6px;
}
.sidebar-close-btn:hover { background: rgba(255,255,255,0.15); }
.sidebar-nav { flex: 1; padding: 10px 0; }
.sidebar-link {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 20px; color: rgba(255,255,255,0.85);
  text-decoration: none; font-size: 0.9rem;
  transition: background 0.2s; position: relative;
}
.sidebar-link:hover { background: rgba(255,255,255,0.15); color: #fff; }
.sidebar-link i { width: 18px; text-align: center; }
.sidebar-link .badge {
  background: #ff4757; color: #fff; border-radius: 50%;
  font-size: 0.65rem; padding: 2px 5px;
  position: static; margin-left: auto;
}
.sidebar-ikon { border-top: 1px solid rgba(255,255,255,0.15); margin-top: 4px; }
.sidebar-footer-nav { border-top: 1px solid rgba(255,255,255,0.15); padding: 8px 0; }

/* nav-links (legacy - hidden now) */
.nav-links { display: none !important; }
.navbar > a { display: none !important; }
.navbar > div:not(.nav-brand) { display: none !important; }

/* Container */
.container { max-width: 960px; margin: 0 auto; padding: 16px; padding-top: 72px; }

/* Cards */
.card {
  background: var(--card);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 16px;
  border: 1px solid var(--border);
}
.card-title { font-size: 1.1rem; font-weight: 600; margin-bottom: 14px; color: var(--primary); }

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}
.stat-card {
  background: var(--card);
  border-radius: 12px;
  padding: 16px;
  text-align: center;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--primary);
}
.stat-card.green { border-left-color: var(--success); }
.stat-card.orange { border-left-color: var(--warning); }
.stat-card.red { border-left-color: var(--danger); }
.stat-card.blue { border-left-color: var(--info); }
.stat-card .icon { font-size: 1.6rem; margin-bottom: 6px; }
.stat-card .value { font-size: 1.4rem; font-weight: 700; }
.stat-card .label { font-size: 0.75rem; color: var(--text-muted); margin-top: 2px; }

/* Forms */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 5px; color: var(--text-muted); }
.form-control {
  width: 100%;
  padding: 10px 12px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  background: var(--bg);
  color: var(--text);
  transition: border 0.2s;
}
.form-control:focus { outline: none; border-color: var(--primary); }
select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 80px; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border: none;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.2s, transform 0.1s;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-warning { background: var(--warning); color: #333; }
.btn-info { background: var(--info); color: #fff; }
.btn-sm { padding: 5px 12px; font-size: 0.8rem; }
.btn:hover { opacity: 0.88; }
.btn-block { width: 100%; justify-content: center; }

/* Tables */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
th { background: var(--primary); color: #fff; padding: 10px 12px; text-align: left; }
td { padding: 9px 12px; border-bottom: 1px solid var(--border); }
tr:hover td { background: rgba(108,99,255,0.05); }

/* Alerts */
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 14px; font-size: 0.9rem; }
.alert-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.alert-danger  { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }
.alert-info    { background: #d1ecf1; color: #0c5460; border: 1px solid #bee5eb; }
.alert-warning { background: #fff3cd; color: #856404; border: 1px solid #ffeeba; }

/* Auth pages */
.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.auth-card { background: var(--card); border-radius: 16px; padding: 32px 28px; width: 100%; max-width: 380px; box-shadow: var(--shadow); }
.auth-logo { text-align: center; font-size: 2.5rem; color: var(--primary); margin-bottom: 8px; }
.auth-title { text-align: center; font-size: 1.3rem; font-weight: 700; margin-bottom: 4px; }
.auth-sub { text-align: center; color: var(--text-muted); font-size: 0.85rem; margin-bottom: 20px; }

/* Page header */
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; flex-wrap: wrap; gap: 8px; }
.page-header h2 { font-size: 1.2rem; font-weight: 700; }

/* Event card */
.event-card {
  background: var(--card);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 10px;
}
.event-card .event-info h3 { font-size: 1rem; font-weight: 700; }
.event-card .event-info p { font-size: 0.82rem; color: var(--text-muted); margin-top: 3px; }
.event-card .event-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.event-type-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--primary);
  color: #fff;
  margin-top: 4px;
}

/* Invite page */
.invite-card { text-align: center; }
.invite-card .qr-img { max-width: 180px; margin: 12px auto; display: block; border-radius: 8px; }
.upi-box { background: var(--bg); border-radius: 8px; padding: 10px 16px; font-size: 1rem; font-weight: 600; margin: 8px 0; word-break: break-all; }

/* Search bar */
.search-bar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.search-bar .form-control { flex: 1; min-width: 140px; }

/* Status badges */
.status-badge { padding: 3px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 600; }
.status-pending  { background: #fff3cd; color: #856404; }
.status-accepted { background: #d4edda; color: #155724; }
.status-rejected { background: #f8d7da; color: #721c24; }

/* Chart container */
.chart-wrap { position: relative; height: 260px; }

/* Footer */
.footer { text-align: center; padding: 16px; color: var(--text-muted); font-size: 0.8rem; margin-top: 20px; }

/* Tabs */
.tabs { display: flex; gap: 4px; margin-bottom: 16px; border-bottom: 2px solid var(--border); }
.tab-btn {
  padding: 8px 16px;
  border: none;
  background: none;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  font-weight: 600;
  transition: color 0.2s;
}
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* Responsive */
@media(max-width:480px) {
  .container { padding: 10px; }
  .card { padding: 14px; }
  .auth-card { padding: 22px 16px; }
}