/* ===== Shared Styles for Register, Admin, Dashboard ===== */

:root {
  --blue-deep: #0a2640;
  --blue-primary: #0d3d63;
  --blue-light: #1a5a8a;
  --blue-mist: #e6f0f7;
  --blue-pale: #f0f6fb;
  --gold: #c9a961;
  --gold-light: #e0c98a;
  --gold-deep: #a8884a;
  --cream: #faf8f3;
  --ink: #1a2a3a;
  --ink-soft: #3d556e;
  --ink-mute: #6b8298;
  --white: #ffffff;
  --line: rgba(13, 61, 99, 0.15);
  --line-light: rgba(13, 61, 99, 0.08);
  --red: #d64545;
  --green: #2d8659;
}

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

body {
  font-family: 'Noto Sans SC', 'Inter', sans-serif;
  background: #e8edf2;
  color: var(--ink);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* ===== Top Bar ===== */
.topbar {
  background: var(--blue-deep);
  color: white;
  padding: 14px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
}

.topbar-logo {
  font-family: 'Noto Serif SC', serif;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--gold-light);
}

.topbar-links {
  display: flex;
  gap: 24px;
  align-items: center;
}

.topbar-links a {
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 1px;
  transition: color 0.3s;
}

.topbar-links a:hover { color: var(--gold-light); }

/* ===== Page Container ===== */
.page-container {
  max-width: 960px;
  margin: 40px auto;
  padding: 0 20px;
}

/* ===== Card ===== */
.card {
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  overflow: hidden;
}

.card-header {
  background: linear-gradient(135deg, var(--blue-deep), var(--blue-primary));
  padding: 24px 32px;
  color: white;
}

.card-header h1 {
  font-family: 'Noto Serif SC', serif;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 2px;
}

.card-header p {
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  margin-top: 6px;
}

.card-body {
  padding: 32px;
}

/* ===== Form ===== */
.form-group {
  margin-bottom: 22px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 8px;
}

.form-label .required {
  color: var(--red);
  margin-left: 2px;
}

.form-label .optional {
  font-size: 12px;
  color: var(--ink-mute);
  font-weight: 400;
  margin-left: 4px;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--line);
  border-radius: 8px;
  font-size: 14px;
  font-family: 'Noto Sans SC', sans-serif;
  color: var(--ink);
  background: var(--cream);
  transition: all 0.3s;
}

.form-input:focus {
  outline: none;
  border-color: var(--blue-light);
  background: white;
  box-shadow: 0 0 0 3px rgba(26, 90, 138, 0.1);
}

.form-input.error {
  border-color: var(--red);
  background: #fef5f5;
}

.form-error {
  font-size: 12px;
  color: var(--red);
  margin-top: 4px;
  display: none;
}

.form-error.show { display: block; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* ===== Button ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 32px;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-family: 'Noto Sans SC', sans-serif;
  font-weight: 500;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue-deep), var(--blue-primary));
  color: white;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(10, 38, 64, 0.25);
}

.btn-gold {
  background: linear-gradient(135deg, var(--gold-deep), var(--gold));
  color: white;
}

.btn-gold:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(201, 169, 97, 0.35);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--line);
  color: var(--blue-primary);
}

.btn-outline:hover {
  background: var(--blue-mist);
  border-color: var(--blue-light);
}

.btn-sm {
  padding: 6px 16px;
  font-size: 13px;
}

.btn-block { width: 100%; }

/* ===== Toast ===== */
.toast {
  position: fixed;
  top: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(-100px);
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 14px;
  z-index: 9999;
  transition: transform 0.4s ease;
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

.toast.show { transform: translateX(-50%) translateY(0); }
.toast.success { background: var(--green); color: white; }
.toast.error { background: var(--red); color: white; }

/* ===== Success State ===== */
.success-state {
  text-align: center;
  padding: 60px 32px;
}

.success-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--blue-mist);
  display: flex;
  align-items: center;
  justify-content: center;
}

.success-icon svg { width: 32px; height: 32px; fill: var(--blue-primary); }

.success-title {
  font-family: 'Noto Serif SC', serif;
  font-size: 22px;
  font-weight: 600;
  color: var(--blue-deep);
  margin-bottom: 8px;
}

.success-text {
  font-size: 14px;
  color: var(--ink-mute);
  margin-bottom: 24px;
}

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

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

table.data-table th {
  background: var(--blue-pale);
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  color: var(--blue-primary);
  letter-spacing: 1px;
  border-bottom: 2px solid var(--line);
  white-space: nowrap;
}

table.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--line-light);
  color: var(--ink-soft);
}

table.data-table tr:hover td {
  background: var(--blue-pale);
}

table.data-table tr.active td {
  background: var(--blue-mist);
}

.row-action {
  color: var(--blue-primary);
  cursor: pointer;
  font-weight: 500;
  white-space: nowrap;
}

.row-action:hover { text-decoration: underline; }

/* ===== Dashboard Layout ===== */
.dashboard-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 1400px;
  margin: 30px auto;
  padding: 0 20px;
}

.dashboard-panel {
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  overflow: hidden;
}

.panel-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.panel-header h2 {
  font-family: 'Noto Serif SC', serif;
  font-size: 16px;
  font-weight: 600;
  color: var(--blue-deep);
  letter-spacing: 1px;
}

.panel-body {
  max-height: 700px;
  overflow-y: auto;
}

/* ===== Invitation Preview ===== */
.preview-container {
  padding: 20px;
  background: #e8edf2;
  min-height: 600px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

#invitation-preview {
  width: 800px;
  max-width: 100%;
  transform-origin: top center;
}

.preview-toolbar {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding: 0 4px;
}

.preview-name {
  font-family: 'Noto Serif SC', serif;
  font-size: 15px;
  color: var(--blue-deep);
  font-weight: 500;
}

.preview-empty {
  text-align: center;
  padding: 80px 20px;
  color: var(--ink-mute);
}

.preview-empty svg {
  width: 48px;
  height: 48px;
  fill: var(--line);
  margin-bottom: 16px;
}

/* ===== Search ===== */
.search-box {
  padding: 8px 16px;
  border: 1.5px solid var(--line);
  border-radius: 8px;
  font-size: 13px;
  font-family: 'Noto Sans SC', sans-serif;
  width: 200px;
  background: var(--cream);
}

.search-box:focus {
  outline: none;
  border-color: var(--blue-light);
  background: white;
}

/* ===== Login ===== */
.login-container {
  max-width: 400px;
  margin: 80px auto;
}

.login-card {
  background: white;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.1);
  overflow: hidden;
}

.login-header {
  background: linear-gradient(135deg, var(--blue-deep), var(--blue-primary));
  padding: 32px;
  text-align: center;
  color: white;
}

.login-header h1 {
  font-family: 'Noto Serif SC', serif;
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 3px;
  margin-bottom: 6px;
}

.login-header p {
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  letter-spacing: 2px;
}

.login-body {
  padding: 32px;
}

/* ===== Register Button on Invitation ===== */
.register-cta {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 100;
}

.register-cta .btn {
  box-shadow: 0 8px 24px rgba(10, 38, 64, 0.3);
  padding: 14px 36px;
  font-size: 15px;
}

/* ===== Export Button ===== */
.export-bar {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: none;
}

.export-bar.show { display: flex; }

.export-bar .btn {
  box-shadow: 0 8px 24px rgba(201, 169, 97, 0.4);
}

/* ===== Stats ===== */
.stats-row {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
}

.stat-card {
  flex: 1;
  background: var(--blue-pale);
  border-radius: 8px;
  padding: 16px 20px;
  text-align: center;
}

.stat-num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 28px;
  font-weight: 600;
  color: var(--blue-primary);
}

.stat-label {
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: 1px;
  margin-top: 2px;
}

/* ===== RESPONSIVE: Tablet (<=768px) ===== */
@media (max-width: 768px) {
  .topbar {
    padding: 12px 20px;
  }
  .topbar-logo {
    font-size: 13px;
    letter-spacing: 1px;
  }
  .topbar-links {
    gap: 16px;
  }
  .topbar-links a {
    font-size: 12px;
  }

  .page-container {
    margin: 20px auto;
    padding: 0 12px;
  }

  .card-header {
    padding: 20px 24px;
  }
  .card-header h1 {
    font-size: 19px;
  }
  .card-body {
    padding: 24px 20px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .btn {
    padding: 12px 24px;
    font-size: 14px;
  }

  .login-container {
    margin: 40px 16px;
  }
  .login-header {
    padding: 24px;
  }
  .login-header h1 {
    font-size: 18px;
  }
  .login-body {
    padding: 24px 20px;
  }

  .dashboard-layout {
    grid-template-columns: 1fr;
    gap: 16px;
    margin: 16px auto;
    padding: 0 12px;
  }
}

/* ===== ICP Footer ===== */
.icp-footer {
  background: var(--blue-deep);
  text-align: center;
  padding: 10px 16px;
  font-size: 12px;
}
.icp-footer a {
  color: rgba(255,255,255,0.5);
  text-decoration: none;
  letter-spacing: 1px;
  transition: color 0.3s;
}
.icp-footer a:hover {
  color: var(--gold-light);
}

/* ===== RESPONSIVE: Mobile (<=480px) ===== */
@media (max-width: 480px) {
  .topbar {
    padding: 10px 16px;
    flex-wrap: wrap;
    gap: 8px;
  }
  .topbar-logo {
    font-size: 12px;
  }
  .topbar-links {
    gap: 12px;
    flex-wrap: wrap;
  }
  .topbar-links a {
    font-size: 11px;
  }

  .page-container {
    margin: 12px auto;
    padding: 0 10px;
  }

  .card-header {
    padding: 16px 20px;
  }
  .card-header h1 {
    font-size: 17px;
    letter-spacing: 1px;
  }
  .card-header p {
    font-size: 11px;
  }
  .card-body {
    padding: 20px 16px;
  }

  .form-group {
    margin-bottom: 18px;
  }
  .form-label {
    font-size: 13px;
  }
  .form-input {
    padding: 11px 14px;
    font-size: 13px;
    -webkit-appearance: none;
    appearance: none;
  }

  .btn {
    padding: 12px 20px;
    font-size: 14px;
    width: 100%;
  }

  .success-state {
    padding: 40px 16px;
  }
  .success-title {
    font-size: 19px;
  }
  .success-text {
    font-size: 13px;
  }

  .login-container {
    margin: 24px 12px;
  }
  .login-header {
    padding: 20px;
  }
  .login-header h1 {
    font-size: 17px;
    letter-spacing: 2px;
  }
  .login-body {
    padding: 20px 16px;
  }

  .toast {
    top: 70px;
    padding: 10px 20px;
    font-size: 13px;
    max-width: 90vw;
  }

  .stats-row {
    gap: 8px;
    padding: 12px 16px;
  }
  .stat-num {
    font-size: 18px;
  }
  .stat-label {
    font-size: 9px;
  }
}