/* Nexus Admin Portal — admin.nexusacademyuk.com only */

:root {
  --navy: #0b1f3a;
  --navy-deep: #081528;
  --navy-card: #0d2b52;
  --gold: #c9a84c;
  --gold-soft: #e8c96a;
  --ivory: #f8f6f1;
  --slate: #4a5568;
  --white: #ffffff;
  --border: rgba(248, 246, 241, 0.12);
  --error: #c53030;
  --success: #2d6a4f;
  --radius: 12px;
  --radius-btn: 8px;
  --shadow: 0 16px 40px rgba(5, 12, 28, 0.35);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: Inter, -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  color: var(--ivory);
  background: var(--navy);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.shell {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
}

.shell__bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 90% 60% at 50% -10%, #163a6b 0%, transparent 55%),
    radial-gradient(ellipse 70% 50% at 80% 100%, rgba(201, 168, 76, 0.08) 0%, transparent 50%),
    linear-gradient(165deg, var(--navy) 0%, var(--navy-deep) 100%);
  pointer-events: none;
}

/* Top bar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 12px 20px;
  background: rgba(8, 21, 40, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.topbar[hidden] {
  display: none !important;
}

.topbar__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.topbar__logo {
  width: 100px;
  height: auto;
}

.topbar__label {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gold-soft);
}

.topbar__nav {
  display: flex;
  gap: 4px;
  flex: 1;
  justify-content: center;
}

.nav-tab {
  margin: 0;
  padding: 10px 16px;
  border: none;
  border-radius: var(--radius-btn);
  background: transparent;
  color: rgba(248, 246, 241, 0.75);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}

.nav-tab:hover {
  background: rgba(248, 246, 241, 0.06);
  color: var(--ivory);
}

.nav-tab.is-active {
  background: rgba(201, 168, 76, 0.18);
  color: var(--gold-soft);
}

.nav-tab:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.topbar__account {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.topbar__email {
  margin: 0;
  font-size: 13px;
  color: rgba(248, 246, 241, 0.65);
  max-width: min(40vw, 220px);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.portal {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: clamp(32px, 6vh, 64px) 20px 48px;
}

.shell--app .portal {
  max-width: 1200px;
  padding-top: 32px;
}

/* Gate (sign-in) */
.gate {
  display: none;
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 100%;
  max-width: 520px;
  margin: 0 auto;
}

.gate.is-active {
  display: flex;
  animation: fadeUp 0.45s var(--ease) both;
}

.gate--hidden {
  display: none !important;
}

.gate__logo {
  margin-bottom: 28px;
}

.gate__title {
  margin: 0 0 12px;
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(28px, 5vw, 36px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ivory);
}

.gate__title--sm {
  font-size: clamp(22px, 4vw, 28px);
}

.gate__lead {
  margin: 0 0 28px;
  font-size: 16px;
  color: rgba(248, 246, 241, 0.78);
  max-width: 42ch;
}

.gate__panel {
  width: 100%;
  padding: 28px 24px;
  background: rgba(13, 43, 82, 0.55);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.gate__panel--center {
  display: flex;
  justify-content: center;
}

.gate__signin {
  display: flex;
  justify-content: center;
  min-height: 44px;
}

.gate__hint {
  margin: 16px 0 0;
  font-size: 13px;
  color: rgba(248, 246, 241, 0.55);
}

.gate__status {
  margin: 16px 0 0;
  font-size: 15px;
  color: rgba(248, 246, 241, 0.8);
}

.gate__error {
  margin: 0 0 20px;
  color: #fca5a5;
  font-size: 15px;
}

/* Views */
.view {
  display: none;
  width: 100%;
}

.view.is-active {
  display: block;
  animation: fadeUp 0.4s var(--ease) both;
}

.view--hidden {
  display: none !important;
}

.view__header {
  margin-bottom: 28px;
}

.view__title {
  margin: 0 0 8px;
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(26px, 4vw, 34px);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.view__lead {
  margin: 0;
  color: rgba(248, 246, 241, 0.72);
  font-size: 15px;
}

.view__placeholder {
  margin: 48px 0;
  text-align: center;
  color: rgba(248, 246, 241, 0.5);
  font-size: 15px;
}

/* Controls */
.controls {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  margin-bottom: 24px;
  align-items: end;
}

.field__label {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--gold-soft);
}

.field__select {
  width: 100%;
  min-width: 220px;
  padding: 12px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-btn);
  background: var(--navy-card);
  color: var(--ivory);
  font-family: inherit;
  font-size: 15px;
  cursor: pointer;
  transition: border-color 0.2s var(--ease);
}

.field__select:focus-visible {
  outline: none;
  border-color: var(--gold);
}

.month-toggle {
  display: inline-flex;
  padding: 4px;
  background: rgba(8, 21, 40, 0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
}

.month-toggle__btn {
  margin: 0;
  padding: 10px 16px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: rgba(248, 246, 241, 0.7);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}

.month-toggle__btn.is-active {
  background: var(--gold);
  color: var(--navy);
}

.month-toggle__btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* Filter tabs */
.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.filter-tab {
  margin: 0;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  color: rgba(248, 246, 241, 0.75);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.filter-tab:hover {
  border-color: rgba(201, 168, 76, 0.45);
  color: var(--ivory);
}

.filter-tab.is-active {
  background: rgba(201, 168, 76, 0.2);
  border-color: rgba(201, 168, 76, 0.55);
  color: var(--gold-soft);
}

.filter-tab:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  padding: 20px;
  background: rgba(13, 43, 82, 0.55);
  border: 1px solid var(--border);
  border-top: 3px solid rgba(201, 168, 76, 0.45);
  border-radius: var(--radius);
}

.stat-card--highlight {
  border-top-color: var(--gold);
  background: rgba(201, 168, 76, 0.1);
}

.stat-card__label {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(248, 246, 241, 0.6);
}

.stat-card__value {
  margin: 0;
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(24px, 4vw, 32px);
  font-weight: 700;
  color: var(--gold-soft);
}

.stat-card--highlight .stat-card__value {
  color: var(--gold);
}

.panel-meta {
  margin: 0 0 20px;
  font-size: 14px;
  color: rgba(248, 246, 241, 0.65);
}

/* Tables */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(13, 43, 82, 0.4);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table th,
.data-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.data-table th {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--gold-soft);
  background: rgba(8, 21, 40, 0.5);
  white-space: nowrap;
}

.data-table tbody tr:last-child td {
  border-bottom: none;
}

.data-table tbody tr:hover {
  background: rgba(248, 246, 241, 0.03);
}

.data-table--clickable tbody tr {
  cursor: pointer;
  transition: background 0.15s var(--ease);
}

.data-table--clickable tbody tr:hover {
  background: rgba(201, 168, 76, 0.08);
}

.data-table--clickable tbody tr:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -2px;
}

.data-table--clickable tbody tr.is-selected {
  background: rgba(201, 168, 76, 0.12);
}

.data-table__view-hint {
  font-size: 12px;
  color: rgba(248, 246, 241, 0.45);
  white-space: nowrap;
}

.data-table td {
  color: rgba(248, 246, 241, 0.88);
}

.lead-contact {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.lead-contact__email {
  font-size: 13px;
  color: rgba(248, 246, 241, 0.65);
  word-break: break-all;
}

.lead-details {
  max-width: 280px;
  font-size: 13px;
  color: rgba(248, 246, 241, 0.72);
}

.lead-details__meta {
  margin-top: 4px;
  font-size: 12px;
  color: rgba(248, 246, 241, 0.5);
}

.status-select {
  min-width: 140px;
  padding: 8px 10px;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  background: var(--navy);
  color: var(--ivory);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
}

.status-select:focus-visible {
  outline: none;
  border-color: var(--gold);
}

.status-select:disabled {
  opacity: 0.6;
  cursor: wait;
}

.status-select--detail {
  min-width: 180px;
  padding: 10px 12px;
  font-size: 14px;
}

.status-saved {
  display: inline-block;
  margin-left: 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--success);
  opacity: 0;
  transition: opacity 0.25s var(--ease);
}

.status-saved.is-visible {
  opacity: 1;
}

/* Lead detail */
.detail-back {
  margin-bottom: 24px;
}

.detail-back__btn {
  margin: 0;
  padding: 0;
  border: none;
  background: none;
  color: var(--gold-soft);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: color 0.2s var(--ease);
}

.detail-back__btn:hover {
  color: var(--ivory);
}

.detail-back__btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 4px;
  border-radius: 4px;
}

.detail-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.detail-header__eyebrow {
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(248, 246, 241, 0.55);
}

.detail-header__title {
  margin: 0;
  font-family: 'Playfair Display', Georgia, serif;
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ivory);
}

.detail-header__subtitle {
  margin: 8px 0 0;
  font-size: 15px;
  color: rgba(248, 246, 241, 0.65);
}

.detail-header__status {
  min-width: 200px;
}

.detail-status-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.detail-actions .btn {
  text-decoration: none;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.detail-field {
  padding: 16px 18px;
  background: rgba(13, 43, 82, 0.55);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.detail-field--full {
  grid-column: 1 / -1;
}

.detail-field__label {
  margin: 0 0 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gold-soft);
}

.detail-field__value {
  margin: 0;
  font-size: 15px;
  line-height: 1.5;
  color: var(--ivory);
  word-break: break-word;
}

.detail-field__value a {
  color: var(--gold-soft);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.detail-field__value a:hover {
  color: var(--ivory);
}

.detail-message {
  padding: 24px;
  background: rgba(13, 43, 82, 0.55);
  border: 1px solid var(--border);
  border-top: 3px solid var(--gold);
  border-radius: var(--radius);
}

.detail-message__heading {
  margin: 0 0 12px;
  font-family: Inter, sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--gold-soft);
}

.detail-message__body {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(248, 246, 241, 0.9);
  white-space: pre-wrap;
  word-break: break-word;
}

.detail-message__body.is-empty {
  color: rgba(248, 246, 241, 0.45);
  font-style: italic;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.table-empty {
  margin: 0;
  padding: 32px 20px;
  text-align: center;
  color: rgba(248, 246, 241, 0.5);
  font-size: 14px;
}

/* Panel states */
.panel-loading,
.panel-error {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px;
  margin-bottom: 20px;
  border-radius: var(--radius);
  font-size: 14px;
}

.panel-loading {
  background: rgba(13, 43, 82, 0.45);
  border: 1px solid var(--border);
  color: rgba(248, 246, 241, 0.75);
}

.panel-loading[hidden],
.panel-error[hidden],
.panel-status[hidden] {
  display: none !important;
}

.panel-error {
  flex-wrap: wrap;
  background: rgba(197, 48, 48, 0.12);
  border: 1px solid rgba(197, 48, 48, 0.35);
  color: #fca5a5;
}

.panel-status {
  margin-bottom: 16px;
  padding: 10px 14px;
  border-radius: var(--radius-btn);
  background: rgba(45, 106, 79, 0.2);
  border: 1px solid rgba(45, 106, 79, 0.4);
  color: #86efac;
  font-size: 14px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 12px 22px;
  border: none;
  border-radius: var(--radius-btn);
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), transform 0.15s var(--ease);
}

.btn:active {
  transform: scale(0.98);
}

.btn--primary {
  background: var(--gold);
  color: var(--navy);
}

.btn--primary:hover {
  background: var(--gold-soft);
}

.btn--secondary {
  background: transparent;
  border: 1.5px solid var(--gold);
  color: var(--gold-soft);
}

.btn--secondary:hover {
  background: var(--gold);
  color: var(--navy);
}

.btn--ghost-sm {
  padding: 8px 14px;
  border: 1.5px solid rgba(201, 168, 76, 0.55);
  border-radius: 6px;
  background: transparent;
  color: var(--gold-soft);
  font-size: 13px;
}

.btn--ghost-sm:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--navy);
}

.btn--sm {
  padding: 8px 16px;
  font-size: 14px;
}

.btn:focus-visible,
.btn--ghost-sm:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* Loader */
.loader {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.loader__ring {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(201, 168, 76, 0.2);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loader__ring--sm {
  width: 22px;
  height: 22px;
  border-width: 2px;
}

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

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .gate.is-active,
  .view.is-active,
  .loader__ring {
    animation: none;
  }
}

@media (max-width: 768px) {
  .topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .topbar__nav {
    order: 3;
    justify-content: stretch;
  }

  .nav-tab {
    flex: 1;
    text-align: center;
    padding: 10px 8px;
    font-size: 13px;
  }

  .topbar__account {
    margin-left: 0;
    justify-content: space-between;
  }

  .controls {
    grid-template-columns: 1fr;
  }

  .stats {
    grid-template-columns: 1fr;
  }

  .data-table {
    font-size: 13px;
  }

  .data-table th,
  .data-table td {
    padding: 10px 12px;
  }

  .detail-grid {
    grid-template-columns: 1fr;
  }

  .detail-header__status {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .filter-tabs {
    gap: 6px;
  }

  .filter-tab {
    padding: 7px 11px;
    font-size: 12px;
  }
}