/* ============================================================
   GuestPost Hub — Main Stylesheet
   ============================================================ */

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

:root {
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: #eef2ff;
  --primary-glow: rgba(79, 70, 229, 0.15);
  --success: #16a34a;
  --success-light: #f0fdf4;
  --warning: #d97706;
  --warning-light: #fffbeb;
  --danger: #dc2626;
  --danger-light: #fef2f2;
  --info: #0284c7;
  --info-light: #f0f9ff;
  --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;
  --radius: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
  --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,.08), 0 2px 4px rgba(0,0,0,.04);
  --shadow-lg: 0 10px 24px rgba(0,0,0,.1), 0 4px 8px rgba(0,0,0,.04);
  --transition: 0.2s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--gray-50);
  color: var(--gray-800);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.hidden { display: none !important; }

/* ── Navbar ──────────────────────────────────────────────── */
.navbar {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  padding: 0 28px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}

.navbar-brand {
  font-size: 18px;
  font-weight: 800;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  letter-spacing: -0.3px;
}

.navbar-brand:hover { color: var(--primary-hover); }

.navbar-brand-icon {
  width: 36px; height: 36px;
  background: var(--primary);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 8px rgba(79,70,229,0.35);
}

.navbar-brand-icon svg { width: 20px; height: 20px; stroke: white; }

.navbar-actions { display: flex; align-items: center; gap: 10px; }

.navbar-user {
  font-size: 13px;
  color: var(--gray-600);
  background: var(--gray-100);
  padding: 6px 14px;
  border-radius: 20px;
  font-weight: 600;
  letter-spacing: -0.1px;
}

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: -0.1px;
  position: relative;
  overflow: hidden;
}

.btn:hover  { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn:active { transform: translateY(0); box-shadow: var(--shadow-sm); }

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-hover); }

.btn-success { background: var(--success); color: white; }
.btn-success:hover { background: #15803d; }

.btn-warning { background: var(--warning); color: white; }
.btn-warning:hover { background: #b45309; }

.btn-danger  { background: var(--danger);  color: white; }
.btn-danger:hover  { background: #b91c1c; }

.btn-outline {
  background: white;
  color: var(--gray-700);
  border: 1.5px solid var(--gray-300);
}
.btn-outline:hover { background: var(--gray-50); border-color: var(--gray-400); }

.btn-ghost {
  background: transparent;
  color: var(--gray-600);
  padding: 8px 14px;
}
.btn-ghost:hover { background: var(--gray-100); color: var(--gray-900); }

.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-lg { padding: 14px 32px; font-size: 16px; }

.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

/* Loading spinner inside button */
.btn-loading::after {
  content: '';
  width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin-left: 4px;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Layout ──────────────────────────────────────────────── */
.container { max-width: 1320px; margin: 0 auto; padding: 36px 24px; }

.page-header { margin-bottom: 28px; }
.page-header h1 {
  font-size: 26px; font-weight: 800; color: var(--gray-900);
  margin-bottom: 4px; letter-spacing: -0.5px;
}
.page-header p { color: var(--gray-500); font-size: 15px; }
.page-header-row {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px; margin-bottom: 28px;
}

/* ── Cards ───────────────────────────────────────────────── */
.card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.card-body { padding: 28px; }

/* ── Forms ───────────────────────────────────────────────── */
.form-group { margin-bottom: 20px; }

.form-group label {
  display: block;
  font-size: 13px; font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 7px;
  letter-spacing: -0.1px;
}

.form-control {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius);
  font-size: 14px;
  font-family: inherit;
  color: var(--gray-900);
  background: white;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-control::placeholder { color: var(--gray-400); }

textarea.form-control { resize: vertical; min-height: 90px; }

.form-hint { font-size: 12px; color: var(--gray-400); margin-top: 5px; }

/* ── Auth Pages ──────────────────────────────────────────── */
.auth-wrapper {
  min-height: calc(100vh - 64px);
  display: flex; align-items: center; justify-content: center;
  padding: 40px 20px;
  background: linear-gradient(135deg, #f0f4ff 0%, #faf5ff 100%);
}

.auth-card { width: 100%; max-width: 440px; }
.auth-card .card-body { padding: 40px; }

.auth-logo {
  width: 52px; height: 52px;
  background: var(--primary);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px;
  box-shadow: 0 4px 16px rgba(79,70,229,0.35);
}
.auth-logo svg { width: 28px; height: 28px; stroke: white; }

.auth-card h2 {
  font-size: 24px; font-weight: 800; text-align: center;
  margin-bottom: 4px; color: var(--gray-900); letter-spacing: -0.5px;
}

.auth-card .subtitle {
  text-align: center; color: var(--gray-500); font-size: 14px; margin-bottom: 32px;
}

.auth-divider {
  display: flex; align-items: center; gap: 12px; margin: 20px 0;
  color: var(--gray-400); font-size: 12px;
}
.auth-divider::before, .auth-divider::after {
  content: ''; flex: 1; height: 1px; background: var(--gray-200);
}

.auth-footer {
  text-align: center; margin-top: 24px; font-size: 14px; color: var(--gray-500);
}
.auth-footer a {
  color: var(--primary); text-decoration: none; font-weight: 600;
}
.auth-footer a:hover { text-decoration: underline; }

/* ── Status Badges ───────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px; font-weight: 600; letter-spacing: 0.1px;
}

.badge-submitted    { background: var(--info-light);    color: var(--info); }
.badge-approved     { background: #f0fdf4;  color: var(--success); }
.badge-payment_pending { background: var(--warning-light); color: var(--warning); }
.badge-published    { background: #ecfdf5;  color: #059669; }
.badge-rejected     { background: var(--danger-light);  color: var(--danger); }

.badge-paid {
  background: #ecfdf5; color: #059669;
  font-size: 11px; padding: 3px 10px;
}
.badge-unpaid {
  background: var(--danger-light); color: var(--danger);
  font-size: 11px; padding: 3px 10px;
}
.badge-pending-pay {
  background: var(--warning-light); color: var(--warning);
  font-size: 11px; padding: 3px 10px;
}

/* ── Stats Grid ──────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(175px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
  transition: box-shadow var(--transition);
}
.stat-card:hover { box-shadow: var(--shadow-md); }

.stat-card::before {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 4px; height: 100%;
  background: var(--primary);
  border-radius: 2px 0 0 2px;
}
.stat-card.success::before { background: var(--success); }
.stat-card.warning::before { background: var(--warning); }
.stat-card.danger::before  { background: var(--danger); }

.stat-label { font-size: 12px; color: var(--gray-500); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 6px; }
.stat-value { font-size: 30px; font-weight: 800; color: var(--gray-900); letter-spacing: -1px; line-height: 1; }
.stat-value.success { color: var(--success); }
.stat-value.warning { color: var(--warning); }
.stat-sub   { font-size: 12px; color: var(--gray-400); margin-top: 4px; }

/* ── Table ───────────────────────────────────────────────── */
.table-wrapper { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; }

thead { background: var(--gray-50); }

th {
  text-align: left;
  padding: 12px 16px;
  font-size: 11px; font-weight: 700;
  color: var(--gray-500);
  text-transform: uppercase; letter-spacing: 0.6px;
  border-bottom: 1px solid var(--gray-200);
  white-space: nowrap;
}

td {
  padding: 14px 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--gray-100);
  color: var(--gray-700);
  vertical-align: middle;
}

tr:hover td { background: var(--gray-50); }
tr:last-child td { border-bottom: none; }

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

.actions-cell {
  display: flex; gap: 6px; align-items: center; flex-wrap: nowrap;
}

.td-title { font-weight: 700; color: var(--gray-900); }
.td-sub   { font-size: 12px; color: var(--gray-400); margin-top: 2px; }

/* ── Modal ───────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; padding: 20px;
  animation: fadeOverlay 0.2s ease;
}

@keyframes fadeOverlay { from { opacity: 0; } to { opacity: 1; } }

.modal {
  background: white;
  border-radius: var(--radius-lg);
  width: 100%; max-width: 540px;
  box-shadow: var(--shadow-lg);
  max-height: 90vh; overflow-y: auto;
  animation: slideUp 0.25s ease;
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

.modal-header {
  padding: 22px 28px;
  border-bottom: 1px solid var(--gray-100);
  display: flex; align-items: center; justify-content: space-between;
}

.modal-header h3 {
  font-size: 18px; font-weight: 800; color: var(--gray-900); letter-spacing: -0.3px;
}

.modal-body  { padding: 28px; }
.modal-footer {
  padding: 18px 28px;
  border-top: 1px solid var(--gray-100);
  display: flex; justify-content: flex-end; gap: 10px;
}

.close-btn {
  background: none; border: none; cursor: pointer;
  color: var(--gray-400); padding: 4px;
  font-size: 22px; line-height: 1;
  border-radius: 6px; transition: all var(--transition);
}
.close-btn:hover { background: var(--gray-100); color: var(--gray-700); }

/* ── Detail rows (inside modal) ──────────────────────────── */
.detail-row {
  display: flex; padding: 11px 0;
  border-bottom: 1px solid var(--gray-100); gap: 12px;
}
.detail-row:last-child { border-bottom: none; }
.detail-label { font-size: 12px; font-weight: 700; color: var(--gray-500); min-width: 130px; flex-shrink: 0; text-transform: uppercase; letter-spacing: 0.3px; padding-top: 2px; }
.detail-value { font-size: 14px; color: var(--gray-800); word-break: break-all; }

/* ── Alert banner ────────────────────────────────────────── */
.alert {
  padding: 12px 16px; border-radius: var(--radius);
  font-size: 13px; font-weight: 500; margin-bottom: 20px; display: flex; gap: 10px; align-items: flex-start;
}
.alert-error   { background: var(--danger-light);  color: #991b1b;  border: 1px solid #fecaca; }
.alert-success { background: var(--success-light); color: #166534;  border: 1px solid #bbf7d0; }
.alert-info    { background: var(--info-light);    color: #075985;  border: 1px solid #bae6fd; }
.alert-warning { background: var(--warning-light); color: #92400e;  border: 1px solid #fde68a; }
.alert.hidden  { display: none; }

/* ── Toast ───────────────────────────────────────────────── */
.toast-container {
  position: fixed; top: 80px; right: 20px; z-index: 2000;
  display: flex; flex-direction: column; gap: 10px; pointer-events: none;
}

.toast {
  background: white;
  border-radius: var(--radius);
  padding: 14px 20px;
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--primary);
  font-size: 14px; font-weight: 500;
  animation: slideToast 0.3s cubic-bezier(0.34,1.56,0.64,1);
  max-width: 360px;
  min-width: 240px;
  pointer-events: all;
  transition: opacity 0.3s, transform 0.3s;
  color: var(--gray-800);
}

.toast.success { border-left-color: var(--success); }
.toast.error   { border-left-color: var(--danger);  }

@keyframes slideToast {
  from { transform: translateX(120%); opacity: 0; }
  to   { transform: translateX(0);   opacity: 1; }
}

/* ── Tabs ────────────────────────────────────────────────── */
.tabs {
  display: flex; gap: 2px; margin-bottom: 20px;
  border-bottom: 2px solid var(--gray-200);
  overflow-x: auto; padding-bottom: 0;
}

.tab {
  padding: 10px 18px;
  font-size: 14px; font-weight: 600; font-family: inherit;
  color: var(--gray-500); cursor: pointer;
  border: none; background: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px; white-space: nowrap;
  transition: all var(--transition);
}
.tab:hover { color: var(--gray-800); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

/* ── Empty state ─────────────────────────────────────────── */
.empty-state {
  text-align: center; padding: 64px 24px; color: var(--gray-400);
}
.empty-state .empty-icon { font-size: 52px; margin-bottom: 14px; line-height: 1; }
.empty-state p { font-size: 15px; font-weight: 500; }
.empty-state small { font-size: 13px; color: var(--gray-300); }

/* ── Landing / Hero ──────────────────────────────────────── */
.landing-bg {
  background: linear-gradient(160deg, #f0f4ff 0%, #fdf4ff 50%, #f0fdf4 100%);
  min-height: calc(100vh - 64px);
}

.hero {
  text-align: center;
  padding: 100px 20px 60px;
  max-width: 760px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--primary-light); color: var(--primary);
  padding: 6px 16px; border-radius: 20px;
  font-size: 13px; font-weight: 600; margin-bottom: 24px;
  border: 1px solid rgba(79,70,229,0.2);
}

.hero h1 {
  font-size: 52px; font-weight: 800; color: var(--gray-900);
  line-height: 1.15; margin-bottom: 18px;
  letter-spacing: -1.5px;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--primary) 0%, #7c3aed 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 19px; color: var(--gray-500); margin-bottom: 40px;
  line-height: 1.7; max-width: 580px; margin-left: auto; margin-right: auto;
}

.hero-actions {
  display: flex; gap: 12px; justify-content: center; flex-wrap: wrap;
  margin-bottom: 60px;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  max-width: 920px;
  margin: 0 auto;
  padding: 0 20px 80px;
}

.feature-card {
  text-align: center; padding: 36px 28px;
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), transform var(--transition);
}
.feature-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }

.feature-icon {
  width: 56px; height: 56px;
  background: var(--primary-light);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 18px;
  font-size: 26px;
}

.feature-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; color: var(--gray-900); }
.feature-card p  { font-size: 14px; color: var(--gray-500); line-height: 1.6; }

/* ── Payment URL row in detail view ──────────────────────── */
.payment-url-link {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--warning-light);
  border: 1px solid #fde68a;
  color: var(--warning);
  padding: 6px 12px; border-radius: 8px;
  font-size: 13px; font-weight: 600; text-decoration: none;
  transition: background var(--transition);
}
.payment-url-link:hover { background: #fef3c7; }

/* ── Loader spinner (page-level) ─────────────────────────── */
.page-loader {
  display: flex; align-items: center; justify-content: center;
  min-height: calc(100vh - 64px);
}
.spinner {
  width: 40px; height: 40px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 768px) {
  .hero h1 { font-size: 32px; }
  .hero p  { font-size: 16px; }
  .container { padding: 20px 16px; }
  .card-body { padding: 18px; }
  .auth-card .card-body { padding: 28px 20px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .actions-cell { flex-wrap: wrap; }
  th, td { padding: 10px 12px; font-size: 13px; }
  .detail-row { flex-direction: column; gap: 2px; }
  .detail-label { min-width: 0; }
  .modal { max-width: 100%; }
  .modal-body, .modal-header, .modal-footer { padding-left: 20px; padding-right: 20px; }
  .tabs { gap: 0; }
  .tab { padding: 10px 12px; font-size: 13px; }
  .navbar { padding: 0 16px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 26px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { justify-content: center; }
}