/* ==========================================================================
   Paloma Shield Design System (OKLCH Color Space & Accessible Craft)
   ========================================================================== */

:root {
  /* Color Palette in OKLCH */
  --bg-app: oklch(0.12 0.015 255);
  --bg-surface: oklch(0.16 0.018 255);
  --bg-surface-elevated: oklch(0.20 0.02 255);
  --bg-surface-hover: oklch(0.23 0.022 255);

  --border-subtle: oklch(0.25 0.02 255);
  --border-strong: oklch(0.35 0.025 255);
  --border-focus: oklch(0.70 0.15 210);

  /* Typography / Inks (Contrast > 7:1) */
  --ink-primary: oklch(0.96 0.005 255);
  --ink-secondary: oklch(0.78 0.015 255);
  --ink-muted: oklch(0.62 0.02 255);

  /* Semantic Accents */
  --accent-primary: oklch(0.68 0.16 210);
  --accent-primary-hover: oklch(0.74 0.18 210);
  --accent-ink: oklch(0.10 0.02 255);

  --danger-bg: oklch(0.22 0.06 25);
  --danger-border: oklch(0.42 0.14 25);
  --danger-ink: oklch(0.78 0.18 25);
  --danger-btn: oklch(0.60 0.20 25);
  --danger-btn-hover: oklch(0.66 0.22 25);

  --success-bg: oklch(0.20 0.05 145);
  --success-border: oklch(0.40 0.12 145);
  --success-ink: oklch(0.78 0.16 145);

  --warning-bg: oklch(0.22 0.06 65);
  --warning-border: oklch(0.45 0.14 65);
  --warning-ink: oklch(0.80 0.16 65);

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Elevation */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.65);

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

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

body {
  background-color: var(--bg-app);
  color: var(--ink-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

.font-mono {
  font-family: var(--font-mono);
}

.code-inline {
  font-family: var(--font-mono);
  background-color: var(--bg-surface-elevated);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 0.88em;
  color: var(--accent-primary);
  border: 1px solid var(--border-subtle);
}

/* ==========================================================================
   Authentication Screen
   ========================================================================== */

.auth-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

.auth-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px;
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow-lg);
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 9999px;
  margin-bottom: 16px;
}

.brand-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-secondary);
}

.auth-heading {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
  color: var(--ink-primary);
}

.auth-sub {
  color: var(--ink-muted);
  font-size: 13px;
  margin-bottom: 28px;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-secondary);
}

.input-container {
  position: relative;
  display: flex;
  align-items: center;
}

.text-input {
  width: 100%;
  background-color: var(--bg-app);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  color: var(--ink-primary);
  font-family: inherit;
  font-size: 14px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.text-input:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px oklch(0.70 0.15 210 / 0.15);
}

.icon-button {
  position: absolute;
  right: 10px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 4px;
  font-size: 14px;
  color: var(--ink-muted);
}

.error-banner {
  background-color: var(--danger-bg);
  border: 1px solid var(--danger-border);
  color: var(--danger-ink);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: 13px;
}

.auth-footer {
  margin-top: 32px;
  text-align: center;
  font-size: 12px;
  color: var(--ink-muted);
}

/* ==========================================================================
   Dashboard Layout (App Shell)
   ========================================================================== */

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

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: 12px;
}

.shield-emblem {
  font-size: 24px;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink-primary);
}

.brand-sub {
  font-size: 12px;
  color: var(--ink-muted);
}

.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px;
  background-color: var(--success-bg);
  border: 1px solid var(--success-border);
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 600;
  color: var(--success-ink);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--success-ink);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--success-ink);
  animation: pulse-glow 2s infinite ease-in-out;
}

@keyframes pulse-glow {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.header-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.refresh-control {
  display: flex;
  align-items: center;
  gap: 8px;
}

.control-label {
  font-size: 12px;
  color: var(--ink-muted);
}

.select-input {
  background-color: var(--bg-app);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--ink-secondary);
  font-size: 13px;
  padding: 6px 10px;
}

.select-sm {
  padding: 4px 8px;
}

.select-input:focus {
  outline: none;
  border-color: var(--border-focus);
}

.main-content {
  flex: 1;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

/* ==========================================================================
   Metrics Grid
   ========================================================================== */

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.metric-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: var(--shadow-sm);
}

.metric-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.metric-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-secondary);
}

.metric-pill {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 9999px;
}

.pill-danger {
  background-color: var(--danger-bg);
  border: 1px solid var(--danger-border);
  color: var(--danger-ink);
}

.pill-warning {
  background-color: var(--warning-bg);
  border: 1px solid var(--warning-border);
  color: var(--warning-ink);
}

.pill-success {
  background-color: var(--success-bg);
  border: 1px solid var(--success-border);
  color: var(--success-ink);
}

.pill-neutral {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--ink-muted);
}

.metric-value {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink-primary);
}

.metric-footer {
  font-size: 12px;
  color: var(--ink-muted);
}

/* ==========================================================================
   Section Layout & Tables
   ========================================================================== */

.section-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.section-title {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink-primary);
}

.section-desc {
  font-size: 13px;
  color: var(--ink-muted);
  margin-top: 2px;
}

.badge-count {
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 9999px;
  color: var(--ink-secondary);
}

.table-filters {
  display: flex;
  align-items: center;
  gap: 10px;
}

.search-input {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--ink-primary);
  font-size: 13px;
  padding: 6px 12px;
  width: 220px;
}

.search-input:focus {
  outline: none;
  border-color: var(--border-focus);
}

.table-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.data-table th {
  background-color: var(--bg-surface-elevated);
  padding: 12px 16px;
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border-subtle);
}

.data-table td {
  padding: 14px 16px;
  font-size: 13px;
  color: var(--ink-secondary);
  border-bottom: 1px solid var(--border-subtle);
}

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

.data-table tbody tr:hover {
  background-color: var(--bg-surface-hover);
}

.table-empty {
  text-align: center;
  padding: 32px 16px !important;
  color: var(--ink-muted);
  font-style: italic;
}

.text-right {
  text-align: right;
}

.ip-cell {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ip-text {
  font-weight: 600;
  color: var(--ink-primary);
}

.copy-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 12px;
  color: var(--ink-muted);
  padding: 2px 4px;
  border-radius: 4px;
}

.copy-btn:hover {
  color: var(--ink-primary);
  background-color: var(--bg-surface-elevated);
}

.badge-event {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 600;
}

.badge-ban {
  background-color: var(--danger-bg);
  border: 1px solid var(--danger-border);
  color: var(--danger-ink);
}

.badge-unban {
  background-color: var(--success-bg);
  border: 1px solid var(--success-border);
  color: var(--success-ink);
}

.badge-manual {
  background-color: var(--warning-bg);
  border: 1px solid var(--warning-border);
  color: var(--warning-ink);
}

.table-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background-color: var(--bg-surface-elevated);
  border-top: 1px solid var(--border-subtle);
  font-size: 12px;
  color: var(--ink-muted);
}

.pagination-actions {
  display: flex;
  gap: 8px;
}

/* ==========================================================================
   Buttons & Controls
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.05s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--accent-primary);
  color: var(--accent-ink);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--accent-primary-hover);
}

.btn-secondary {
  background-color: var(--bg-surface-elevated);
  border-color: var(--border-subtle);
  color: var(--ink-primary);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--bg-surface-hover);
  border-color: var(--border-strong);
}

.btn-danger {
  background-color: var(--danger-btn);
  color: #ffffff;
}

.btn-danger:hover:not(:disabled) {
  background-color: var(--danger-btn-hover);
}

.btn-ghost {
  background-color: transparent;
  color: var(--ink-secondary);
}

.btn-ghost:hover:not(:disabled) {
  background-color: var(--bg-surface-elevated);
  color: var(--ink-primary);
}

.btn-sm {
  padding: 4px 10px;
  font-size: 12px;
  border-radius: var(--radius-sm);
}

.btn-block {
  width: 100%;
}

.mt-3 {
  margin-top: 12px;
}

/* ==========================================================================
   Modal Dialog
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 50;
}

.modal-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

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

.modal-heading {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-primary);
}

.modal-close-btn {
  background: transparent;
  border: none;
  font-size: 16px;
  color: var(--ink-muted);
  cursor: pointer;
  padding: 4px;
}

.modal-close-btn:hover {
  color: var(--ink-primary);
}

.modal-body {
  padding: 24px;
  font-size: 14px;
  color: var(--ink-secondary);
}

.ip-highlight-box {
  background-color: var(--bg-app);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px;
  font-size: 16px;
  font-weight: 700;
  text-align: center;
  color: var(--danger-ink);
  margin: 14px 0;
}

.modal-warning {
  font-size: 12px;
  color: var(--ink-muted);
  line-height: 1.4;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  padding: 16px 24px;
  background-color: var(--bg-surface-elevated);
  border-top: 1px solid var(--border-subtle);
}

/* ==========================================================================
   Toast Notification System
   ========================================================================== */

.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 100;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  box-shadow: var(--shadow-md);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-primary);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: toast-in 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast-success {
  border-color: var(--success-border);
  color: var(--success-ink);
}

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

@keyframes toast-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Reduced Motion Override */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}