/* ===================================================================
   FediProfile Admin — Modern Design System
   =================================================================== */

:root {
  /* Core palette */
  --admin-bg: #0f0f14;
  --admin-surface: #1a1a22;
  --admin-surface-hover: #22222d;
  --admin-border: #2a2a38;
  --admin-ink: #e4e4ec;
  --admin-ink-muted: #8888a0;
  --admin-accent: #7c6aef;
  --admin-accent-hover: #9584f7;
  --admin-accent-subtle: rgba(124, 106, 239, 0.10);
  --admin-success: #34d399;
  --admin-success-bg: rgba(52, 211, 153, 0.10);
  --admin-danger: #f87171;
  --admin-danger-bg: rgba(248, 113, 113, 0.10);
  --admin-danger-hover: #ef4444;
  --admin-warning: #fbbf24;
  --admin-warning-bg: rgba(251, 191, 36, 0.10);
  --admin-info-bg: rgba(96, 165, 250, 0.10);
  --admin-info: #60a5fa;
  --admin-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
  --admin-radius: 12px;
  --admin-radius-sm: 8px;
  --admin-radius-xs: 6px;
  --admin-font: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --admin-transition: 180ms cubic-bezier(0.4, 0, 0.2, 1);
}

@media (prefers-color-scheme: light) {
  :root {
    --admin-bg: #f4f4f8;
    --admin-surface: #ffffff;
    --admin-surface-hover: #f0f0f6;
    --admin-border: #e0e0ea;
    --admin-ink: #1a1a28;
    --admin-ink-muted: #6b6b82;
    --admin-accent: #6d5bd0;
    --admin-accent-hover: #5b49b8;
    --admin-accent-subtle: rgba(109, 91, 208, 0.08);
    --admin-success-bg: rgba(52, 211, 153, 0.12);
    --admin-danger-bg: rgba(248, 113, 113, 0.12);
    --admin-warning-bg: rgba(251, 191, 36, 0.12);
    --admin-info-bg: rgba(96, 165, 250, 0.12);
    --admin-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  }
}

/* ===================================================================
   Reset & Base
   =================================================================== */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--admin-font);
  background: var(--admin-bg);
  color: var(--admin-ink);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--admin-accent);
  text-decoration: none;
  transition: color var(--admin-transition);
}
a:hover {
  color: var(--admin-accent-hover);
  text-decoration: underline;
}

/* ===================================================================
   Layout Shells
   =================================================================== */

.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Top bar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  height: 56px;
  background: var(--admin-surface);
  border-bottom: 1px solid var(--admin-border);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  gap: 1.5rem;
}

.brand {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--admin-accent) !important;
  text-decoration: none !important;
  letter-spacing: -0.02em;
  margin-right: auto;
}

.topbar-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.topbar-nav a {
  color: var(--admin-ink-muted);
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  transition: color var(--admin-transition);
}

.topbar-nav a:hover {
  color: var(--admin-ink);
  text-decoration: none;
}

.topbar-user {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--admin-accent-subtle);
  color: var(--admin-accent) !important;
  padding: 0.3rem 0.75rem 0.3rem 0.55rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.8rem;
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  letter-spacing: 0.01em;
  transition: background var(--admin-transition), color var(--admin-transition);
}

.topbar-user:hover {
  background: var(--admin-accent);
  color: #fff !important;
}

.topbar-avatar-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.page {
  flex: 1;
  padding: 2rem;
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
}

.page-minimal {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem;
}

/* ===================================================================
   Login / Register Shell (MinimalLayout pages)
   =================================================================== */

.login-shell {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  animation: fadeInUp 500ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.login-card {
  width: 100%;
  max-width: 440px;
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  padding: 2.5rem;
  box-shadow: var(--admin-shadow);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.login-card .admin-title {
  margin-bottom: 0;
}
.login-card .admin-subtitle {
  margin-bottom: 0.5rem;
}

/* ===================================================================
   Admin Shell (MainLayout pages)
   =================================================================== */

.admin-shell {
  animation: fadeInUp 400ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ===================================================================
   Typography
   =================================================================== */

.admin-title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--admin-accent), var(--admin-accent-hover));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.25rem;
}

.admin-subtitle {
  color: var(--admin-ink-muted);
  font-size: 0.95rem;
  margin: 0;
}

/* ===================================================================
   Admin Grid (info cards row)
   =================================================================== */

.admin-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-bottom: 0.5rem;
}

/* ===================================================================
   Cards
   =================================================================== */

.card {
  background: var(--admin-surface);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  padding: 1.5rem;
  box-shadow: var(--admin-shadow);
  transition: border-color var(--admin-transition), box-shadow var(--admin-transition);
}

.card:hover {
  border-color: color-mix(in srgb, var(--admin-accent) 30%, var(--admin-border));
}

.card h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--admin-ink);
}

.card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--admin-ink);
}

/* ===================================================================
   Pill / Badge
   =================================================================== */

.pill {
  display: inline-block;
  background: var(--admin-accent-subtle);
  color: var(--admin-accent);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  letter-spacing: 0.02em;
}

/* ===================================================================
   Muted Text
   =================================================================== */

.muted {
  color: var(--admin-ink-muted);
  font-size: 0.875rem;
}

.small {
  font-size: 0.82rem;
}

/* ===================================================================
   Alerts
   =================================================================== */

.alert {
  padding: 0.85rem 1rem;
  border-radius: var(--admin-radius-sm);
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0.75rem 0;
  border: 1px solid transparent;
}

.alert a {
  font-weight: 600;
  text-decoration: underline;
}

.alert-success {
  background: var(--admin-success-bg);
  color: var(--admin-success);
  border-color: color-mix(in srgb, var(--admin-success) 25%, transparent);
}

.alert-error {
  background: var(--admin-danger-bg);
  color: var(--admin-danger);
  border-color: color-mix(in srgb, var(--admin-danger) 25%, transparent);
}

.alert-info {
  background: var(--admin-info-bg);
  color: var(--admin-info);
  border-color: color-mix(in srgb, var(--admin-info) 25%, transparent);
}

.alert-warning {
  background: var(--admin-warning-bg);
  color: var(--admin-warning);
  border-color: color-mix(in srgb, var(--admin-warning) 25%, transparent);
}

/* ===================================================================
   Buttons
   =================================================================== */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--admin-font);
  border: 1px solid transparent;
  border-radius: var(--admin-radius-sm);
  cursor: pointer;
  text-decoration: none !important;
  transition: all var(--admin-transition);
  white-space: nowrap;
}

.button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  pointer-events: none;
}

.button-primary {
  background: var(--admin-accent);
  color: #fff;
  border-color: var(--admin-accent);
}
.button-primary:hover:not(:disabled) {
  background: var(--admin-accent-hover);
  border-color: var(--admin-accent-hover);
  box-shadow: 0 4px 16px rgba(124, 106, 239, 0.3);
}

.button-secondary {
  background: var(--admin-success);
  color: #fff;
  border-color: var(--admin-success);
}
.button-secondary:hover:not(:disabled) {
  filter: brightness(1.1);
  box-shadow: 0 4px 16px rgba(52, 211, 153, 0.25);
}

.button-danger {
  background: var(--admin-danger);
  color: #fff;
  border-color: var(--admin-danger);
}
.button-danger:hover:not(:disabled) {
  background: var(--admin-danger-hover);
  border-color: var(--admin-danger-hover);
  box-shadow: 0 4px 16px rgba(248, 113, 113, 0.25);
}

.button-ghost {
  background: transparent;
  color: var(--admin-ink-muted);
  border: 1px solid var(--admin-border);
}
.button-ghost:hover:not(:disabled) {
  background: var(--admin-surface-hover);
  color: var(--admin-ink);
  border-color: var(--admin-accent);
}

.button-small {
  padding: 0.3rem 0.65rem;
  font-size: 0.8rem;
  border-radius: var(--admin-radius-xs);
}

/* ===================================================================
   Forms
   =================================================================== */

.field-label,
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--admin-ink);
  margin-bottom: 0.35rem;
}

.form-group {
  margin-bottom: 1.15rem;
}

.form-group small {
  display: block;
  color: var(--admin-ink-muted);
  font-size: 0.8rem;
  margin-top: 0.3rem;
}

.input,
.form-control,
input[type="text"],
input[type="email"],
input[type="url"],
input[type="password"],
textarea,
select {
  width: 100%;
  padding: 0.6rem 0.85rem;
  font-size: 0.925rem;
  font-family: var(--admin-font);
  color: var(--admin-ink);
  background: var(--admin-bg);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius-sm);
  transition: border-color var(--admin-transition), box-shadow var(--admin-transition);
  outline: none;
}

.input:focus,
.form-control:focus,
input[type="text"]:focus,
input[type="email"]:focus,
input[type="url"]:focus,
input[type="password"]:focus,
textarea:focus,
select:focus {
  border-color: var(--admin-accent);
  box-shadow: 0 0 0 3px var(--admin-accent-subtle);
}

.input::placeholder,
.form-control::placeholder,
input::placeholder,
textarea::placeholder {
  color: var(--admin-ink-muted);
  opacity: 0.6;
}

textarea.form-control,
textarea {
  resize: vertical;
  min-height: 80px;
}

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238888a0' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2rem;
}

/* Input group (prefix + input) */
.input-group {
  display: flex;
  align-items: stretch;
}

.input-group .prefix {
  display: flex;
  align-items: center;
  padding: 0 0.75rem;
  background: var(--admin-surface-hover);
  color: var(--admin-ink-muted);
  border: 1px solid var(--admin-border);
  border-right: none;
  border-radius: var(--admin-radius-sm) 0 0 var(--admin-radius-sm);
  font-size: 0.85rem;
  font-family: 'SF Mono', 'Fira Code', monospace;
  white-space: nowrap;
}

.input-group .form-control,
.input-group input {
  border-radius: 0 var(--admin-radius-sm) var(--admin-radius-sm) 0;
  flex: 1;
}

/* Checkbox styling */
input[type="checkbox"] {
  width: auto;
  accent-color: var(--admin-accent);
  margin-right: 0.4rem;
  transform: scale(1.1);
}

.form-group label:has(input[type="checkbox"]) {
  display: flex;
  align-items: center;
  font-weight: 500;
  cursor: pointer;
  font-size: 0.9rem;
}

/* Status helpers for username chooser */
.status-checking {
  color: var(--admin-warning) !important;
}
.status-available {
  color: var(--admin-success) !important;
}
.status-taken {
  color: var(--admin-danger) !important;
}

/* ===================================================================
   Tables
   =================================================================== */

.user-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-top: 1rem;
  font-size: 0.9rem;
}

.user-table thead th {
  text-align: left;
  padding: 0.7rem 0.85rem;
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--admin-ink-muted);
  background: var(--admin-bg);
  border-bottom: 1px solid var(--admin-border);
}

.user-table thead th:first-child {
  border-radius: var(--admin-radius-sm) 0 0 0;
}
.user-table thead th:last-child {
  border-radius: 0 var(--admin-radius-sm) 0 0;
}

.user-table tbody td {
  padding: 0.75rem 0.85rem;
  border-bottom: 1px solid var(--admin-border);
  vertical-align: middle;
}

.user-table tbody tr {
  transition: background var(--admin-transition);
}
.user-table tbody tr:hover {
  background: var(--admin-surface-hover);
}

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

.user-table td a {
  color: var(--admin-accent);
}

/* ===================================================================
   Animations
   =================================================================== */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===================================================================
   Utilities
   =================================================================== */

.admin-section {
  margin-top: 2rem;
}

.admin-form {
  margin-top: 1rem;
}

.admin-card-spaced {
  margin-top: 1.5rem;
}

.admin-mt-sm {
  margin-top: 0.5rem;
}

/* ===================================================================
   Responsive
   =================================================================== */

@media (max-width: 768px) {
  .topbar {
    padding: 0 1rem;
    gap: 0.75rem;
  }

  .topbar-user-name {
    max-width: 80px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .page {
    padding: 1.25rem;
  }

  .login-card {
    padding: 1.75rem;
  }

  .admin-header {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .user-table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .card {
    padding: 1.15rem;
  }
}

@media (max-width: 480px) {
  .admin-title {
    font-size: 1.35rem;
  }

  .login-card {
    padding: 1.25rem;
    border-radius: var(--admin-radius-sm);
  }
}

/* ===================================================================
   Icon Picker
   =================================================================== */

.icon-picker {
  position: relative;
}

.icon-picker-selected {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  user-select: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238888a0' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2rem;
}

.icon-picker-placeholder {
  color: var(--admin-ink-muted);
  opacity: 0.6;
}

.icon-picker-img {
  width: 20px;
  height: 20px;
  object-fit: contain;
  flex-shrink: 0;
}

.icon-picker-dropdown {
  position: absolute;
  z-index: 20;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: 2px;
  background: var(--admin-bg);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius-sm);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  max-height: 260px;
  overflow-y: auto;
}

.icon-picker-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.85rem;
  cursor: pointer;
  font-size: 0.925rem;
  transition: background var(--admin-transition);
}

.icon-picker-option:hover {
  background: var(--admin-surface-hover);
}

.icon-preview {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 0.5rem;
  padding: 0.5rem;
  background: var(--admin-surface-hover);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius-sm);
  width: 48px;
  height: 48px;
}

.icon-preview img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}