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

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

:root {
  --teal: #0ea5e9;
  --teal-dark: #0284c7;
  --teal-light: #e0f2fe;
  --accent: #f59e0b;
  --text: #0f172a;
  --text-light: #64748b;
  --border: rgba(15,23,42,0.09);
  --bg: #f0f4f8;
  --white: #ffffff;
  --danger: #ef4444;
  --success: #10b981;
  --header-gradient: linear-gradient(135deg, #0f172a 0%, #1e3a5f 55%, #075985 100%);
  --sidebar-bg: #ffffff;
  --card-border: rgba(14,165,233,0.12);
  --shadow: rgba(15,23,42,0.08);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

/* ── Header ── */
#admin-header {
  background: var(--header-gradient);
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  height: 56px;
  box-shadow: 0 1px 0 rgba(255,255,255,0.06), 0 4px 20px rgba(0,0,0,0.3);
  flex-shrink: 0;
  position: relative;
}
#admin-header::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(56,189,248,0.5), transparent);
}
#admin-header h1 { color: #fff; font-size: 16px; font-weight: 600; letter-spacing: -0.01em; }
#admin-header a { color: rgba(255,255,255,0.7); text-decoration: none; font-size: 13px; transition: color 0.15s; }
#admin-header a:hover { color: #fff; }
#admin-header .spacer { flex: 1; }
#admin-header .user-info { color: rgba(255,255,255,0.7); font-size: 12px; }
#admin-header button.logout-btn {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.85);
  padding: 5px 14px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  font-family: inherit;
  transition: all 0.2s;
}
#admin-header button.logout-btn:hover { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.5); color: #fff; }

/* ── Layout ── */
#admin-layout { display: flex; flex: 1; overflow: hidden; }

/* ── Sidebar ── */
#sidebar {
  width: 230px;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
}
#sidebar h3 {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-light);
  padding: 16px 18px 8px;
  font-weight: 600;
}
#sidebar .page-item {
  padding: 9px 18px;
  cursor: pointer;
  color: var(--text);
  font-size: 13px;
  border-left: 3px solid transparent;
  transition: all 0.15s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
#sidebar .page-item:hover { background: #f0f7ff; color: var(--teal); }
#sidebar .page-item.active {
  background: #e0f2fe;
  border-left-color: var(--teal);
  font-weight: 600;
  color: var(--teal-dark);
}
#sidebar .users-item {
  padding: 9px 18px;
  cursor: pointer;
  color: var(--text-light);
  font-size: 13px;
  border-left: 3px solid transparent;
  transition: all 0.15s;
}
#sidebar .users-item:hover, #sidebar .users-item.active {
  background: #f0f7ff;
  border-left-color: var(--teal);
  color: var(--teal);
}
#sidebar .sidebar-sep { border: none; border-top: 1px solid var(--border); margin: 8px 0; }
#sidebar .add-page-btn {
  margin: 10px 14px;
  padding: 8px 14px;
  background: linear-gradient(135deg, #0284c7, #0ea5e9);
  color: #fff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  box-shadow: 0 2px 8px rgba(14,165,233,0.3);
  transition: opacity 0.2s, transform 0.15s;
}
#sidebar .add-page-btn:hover { opacity: 0.9; transform: translateY(-1px); }

/* ── Main panel ── */
#admin-main { flex: 1; overflow-y: auto; padding: 28px; background: var(--bg); }

.panel-title { font-size: 20px; font-weight: 700; color: var(--teal-dark); margin-bottom: 22px; letter-spacing: -0.02em; }
.panel-subtitle { font-size: 13px; color: var(--text-light); margin-bottom: 16px; }

/* ── Buttons ── */
.btn {
  padding: 7px 16px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  transition: all 0.18s;
  letter-spacing: 0.01em;
}
.btn-primary {
  background: linear-gradient(135deg, #0284c7, #0ea5e9);
  color: #fff;
  box-shadow: 0 2px 8px rgba(14,165,233,0.25);
}
.btn-primary:hover { opacity: 0.88; transform: translateY(-1px); }
.btn-danger { background: var(--danger); color: #fff; box-shadow: 0 2px 8px rgba(239,68,68,0.2); }
.btn-danger:hover { background: #dc2626; transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  color: var(--teal);
  border: 1px solid rgba(14,165,233,0.4);
}
.btn-outline:hover { background: #e0f2fe; border-color: var(--teal); }
.btn-sm { padding: 4px 10px; font-size: 12px; border-radius: 6px; }

/* ── Form elements ── */
input[type=text], input[type=password], input[type=email], input[type=url], select, textarea {
  width: 100%;
  padding: 8px 11px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  background: #fff;
  color: var(--text);
}
input:focus, select:focus, textarea:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(14,165,233,0.12);
}
label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-light);
  margin-bottom: 5px;
}
.form-row { display: flex; gap: 12px; align-items: flex-end; margin-bottom: 12px; }
.form-row > * { flex: 1; }
.form-group { margin-bottom: 14px; }

/* ── Card ── */
.card {
  background: var(--white);
  border-radius: 14px;
  box-shadow: 0 2px 16px var(--shadow);
  border: 1px solid var(--card-border);
  margin-bottom: 22px;
  overflow: hidden;
}
.card-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(14,165,233,0.03);
}
.card-header h3 { font-size: 14px; font-weight: 600; flex: 1; color: var(--teal-dark); }
.card-body { padding: 20px; }

/* ── Table ── */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th {
  background: linear-gradient(90deg, #e0f2fe, #f0f9ff);
  color: var(--teal-dark);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 9px 14px;
  text-align: left;
  font-weight: 600;
}
.data-table td {
  padding: 9px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
  font-size: 13px;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: #f8fbff; }
.data-table .actions { display: flex; gap: 6px; white-space: nowrap; }

/* ── Section accordion ── */
.section-accordion {
  border: 1px solid var(--card-border);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  box-shadow: 0 1px 6px var(--shadow);
}
.section-accordion .sa-header {
  background: linear-gradient(90deg, #e0f2fe, #f0f9ff);
  padding: 11px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  transition: background 0.15s;
}
.section-accordion .sa-header:hover { background: linear-gradient(90deg, #bae6fd, #e0f2fe); }
.section-accordion .sa-header h4 { flex: 1; font-size: 13px; font-weight: 600; color: var(--teal-dark); }
.section-accordion .sa-body { padding: 18px; display: none; background: #fff; }
.section-accordion.open .sa-body { display: block; }
.sa-toggle { font-size: 11px; color: var(--text-light); }

/* ── Row editor ── */
.row-item {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.row-item:last-child { border-bottom: none; }
.row-item .cell-inputs { display: flex; gap: 8px; flex: 1; flex-wrap: wrap; }
.row-item .cell-pair { flex: 1; min-width: 180px; }
.row-item .cell-pair input { margin-bottom: 4px; }
.row-item .cell-pair label { font-size: 10px; }

/* ── Modal ── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(2,6,23,0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 900;
  align-items: center;
  justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal {
  background: #fff;
  border-radius: 16px;
  padding: 30px 34px;
  min-width: 380px;
  max-width: 560px;
  width: 90%;
  box-shadow: 0 24px 64px rgba(0,0,0,0.25), 0 0 0 1px var(--card-border);
}
.modal h3 { margin-bottom: 20px; color: var(--teal-dark); font-size: 16px; font-weight: 700; letter-spacing: -0.01em; }
.modal .modal-footer { display: flex; justify-content: flex-end; gap: 10px; margin-top: 22px; }

/* ── Login screen ── */
#login-screen { display: flex; align-items: center; justify-content: center; flex: 1; background: var(--bg); }
.login-card {
  background: #fff;
  border-radius: 20px;
  padding: 38px 42px;
  width: 360px;
  box-shadow: 0 20px 60px rgba(15,23,42,0.12), 0 0 0 1px var(--card-border);
}
.login-card h2 { color: var(--teal-dark); margin-bottom: 26px; font-size: 20px; font-weight: 700; letter-spacing: -0.02em; }
.login-card .error { color: var(--danger); font-size: 12px; margin-top: 8px; }
.login-card .google-btn {
  width: 100%;
  margin-top: 10px;
  padding: 11px;
  background: #4285f4;
  color: #fff;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  box-shadow: 0 4px 14px rgba(66,133,244,0.3);
  transition: opacity 0.2s, transform 0.15s;
}
.login-card .google-btn:hover { opacity: 0.9; transform: translateY(-1px); }

/* ── Toast ── */
#toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: linear-gradient(135deg, #059669, #10b981);
  color: #fff;
  padding: 11px 20px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 500;
  opacity: 0;
  transform: translateY(12px) scale(0.96);
  transition: all 0.22s cubic-bezier(0.34,1.56,0.64,1);
  pointer-events: none;
  z-index: 999;
  box-shadow: 0 8px 24px rgba(16,185,129,0.3);
}
#toast.show { opacity: 1; transform: translateY(0) scale(1); }
#toast.error {
  background: linear-gradient(135deg, #dc2626, #ef4444);
  box-shadow: 0 8px 24px rgba(239,68,68,0.3);
}

/* ── Misc ── */
.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.badge-teal { background: #e0f2fe; color: #0369a1; }
.badge-orange { background: #fef3c7; color: #b45309; }
.no-items { color: var(--text-light); font-style: italic; padding: 12px 0; font-size: 13px; }