/* ==========================================================================
   LKYT MAIL CC — DESIGN SYSTEM TOKENS & FOUNDATIONS
   "Purchase Like a Pro"
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Color Palette - Dark Default (Deep Black / Charcoal Surfaces + Premium Red) */
  --bg-base: #08080a;
  --bg-surface: #101015;
  --bg-elevated: #16161f;
  --bg-overlay: #1e1e2b;
  --bg-card: rgba(22, 22, 31, 0.85);

  /* Primary Accent - Vibrant Premium Red */
  --accent: #e50914;
  --accent-hover: #ff1f2d;
  --accent-active: #cc0711;
  --accent-muted: rgba(229, 9, 20, 0.15);
  --accent-border: rgba(229, 9, 20, 0.35);
  --accent-glow: 0 0 25px rgba(229, 9, 20, 0.35);

  /* Neutrals & Borders */
  --border: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.14);
  --border-strong: rgba(255, 255, 255, 0.22);
  --divider: rgba(255, 255, 255, 0.06);

  /* Text Colors */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #08080a;

  /* Functional Accents */
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.12);
  --success-border: rgba(16, 185, 129, 0.3);

  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.12);
  --warning-border: rgba(245, 158, 11, 0.3);

  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.12);
  --danger-border: rgba(239, 68, 68, 0.3);

  --info: #3b82f6;
  --info-bg: rgba(59, 130, 246, 0.12);
  --info-border: rgba(59, 130, 246, 0.3);

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Radius */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.55);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.7);
  --shadow-glow: 0 0 35px rgba(229, 9, 20, 0.2);

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --max-width: 1280px;
  --header-height: 72px;
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-base: #f8fafc;
  --bg-surface: #ffffff;
  --bg-elevated: #f1f5f9;
  --bg-overlay: #e2e8f0;
  --bg-card: rgba(255, 255, 255, 0.95);

  --accent: #e50914;
  --accent-hover: #c90710;
  --accent-active: #a8050d;
  --accent-muted: rgba(229, 9, 20, 0.08);
  --accent-border: rgba(229, 9, 20, 0.25);
  --accent-glow: 0 0 20px rgba(229, 9, 20, 0.2);

  --border: #e2e8f0;
  --border-light: #cbd5e1;
  --border-strong: #94a3b8;
  --divider: #f1f5f9;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #ffffff;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 6px 18px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 14px 32px rgba(0, 0, 0, 0.12);
}

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

html {
  font-family: var(--font-sans);
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-color: var(--bg-base);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

img, svg {
  display: block;
  max-width: 100%;
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(229, 9, 20, 0.35);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(229, 9, 20, 0.45);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-overlay);
  border-color: var(--border-light);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-light);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-muted);
}

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

.btn-danger:hover {
  background: #dc2626;
}

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

.btn-sm {
  padding: 6px 12px;
  font-size: 0.85rem;
  border-radius: var(--radius-xs);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

.btn-block {
  width: 100%;
}

.btn:disabled, .btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* ==========================================================================
   BADGES & CHIPS
   ========================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-accent {
  background: var(--accent-muted);
  color: var(--accent);
  border: 1px solid var(--accent-border);
}

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

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

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

.badge-neutral {
  background: var(--bg-overlay);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

/* ==========================================================================
   CARDS & CONTAINERS
   ========================================================================== */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  position: relative;
}

.card-hover:hover {
  border-color: var(--border-light);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-glow:hover {
  border-color: var(--accent-border);
  box-shadow: var(--shadow-glow);
}

/* ==========================================================================
   FORM CONTROLS
   ========================================================================== */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

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

.form-control {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

/* Autofill Protection for Dark & Light Themes */
input:-webkit-autofill,
input:-webkit-autofill:hover, 
input:-webkit-autofill:focus,
textarea:-webkit-autofill,
select:-webkit-autofill {
  -webkit-text-fill-color: #f8fafc !important;
  -webkit-box-shadow: 0 0 0px 1000px #161622 inset !important;
  box-shadow: 0 0 0px 1000px #161622 inset !important;
  caret-color: #f8fafc !important;
  transition: background-color 5000s ease-in-out 0s;
  border-color: var(--border-strong) !important;
}

[data-theme="light"] input:-webkit-autofill,
[data-theme="light"] input:-webkit-autofill:hover, 
[data-theme="light"] input:-webkit-autofill:focus,
[data-theme="light"] textarea:-webkit-autofill,
[data-theme="light"] select:-webkit-autofill {
  -webkit-text-fill-color: #0f172a !important;
  -webkit-box-shadow: 0 0 0px 1000px #ffffff inset !important;
  box-shadow: 0 0 0px 1000px #ffffff inset !important;
  caret-color: #0f172a !important;
  border-color: var(--border-strong) !important;
}

.form-control::placeholder {
  color: var(--text-muted);
}

.form-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 6px;
  display: flex;
  align-items: center;
  gap: 5px;
}

.form-hint.success {
  color: var(--success);
}

.form-hint.error {
  color: var(--danger);
}

/* ==========================================================================
   DATA TABLES
   ========================================================================== */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  text-align: left;
}

.table th {
  padding: 14px 16px;
  background: var(--bg-elevated);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  border-bottom: 1px solid var(--border);
}

.table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--divider);
  color: var(--text-primary);
  font-size: 0.92rem;
  vertical-align: middle;
}

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

.table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* ==========================================================================
   MODALS
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal-dialog {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 540px;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px) scale(0.96);
  transition: transform var(--transition-smooth);
  overflow: hidden;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
}

.modal-backdrop.active .modal-dialog {
  transform: translateY(0) scale(1);
}

.modal-header {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
}

.modal-title {
  font-size: 1.2rem;
  font-weight: 700;
}

.modal-close {
  color: var(--text-secondary);
  font-size: 1.5rem;
  line-height: 1;
  padding: 4px;
  border-radius: var(--radius-xs);
  transition: color var(--transition-fast);
}

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

.modal-body {
  padding: 24px;
  overflow-y: auto;
}

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

/* ==========================================================================
   TOAST NOTIFICATIONS
   ========================================================================== */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 12px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  box-shadow: var(--shadow-md);
  min-width: 300px;
  max-width: 440px;
  animation: toastSlideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.toast.toast-success {
  border-left: 4px solid var(--success);
}

.toast.toast-error {
  border-left: 4px solid var(--danger);
}

.toast.toast-warning {
  border-left: 4px solid var(--warning);
}

.toast.toast-info {
  border-left: 4px solid var(--info);
}

@keyframes toastSlideIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ==========================================================================
   EMPTY STATES & SKELETONS
   ========================================================================== */
.empty-state {
  text-align: center;
  padding: 48px 24px;
}

.empty-state-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  color: var(--text-muted);
  opacity: 0.6;
}

.empty-state-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.empty-state-desc {
  color: var(--text-secondary);
  font-size: 0.92rem;
  max-width: 400px;
  margin: 0 auto 20px;
}

.skeleton {
  background: linear-gradient(90deg, var(--bg-surface) 25%, var(--bg-elevated) 50%, var(--bg-surface) 75%);
  background-size: 200% 100%;
  animation: skeletonShimmer 1.8s infinite;
  border-radius: var(--radius-xs);
}

@keyframes skeletonShimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ==========================================================================
   UTILITIES
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.text-accent { color: var(--accent); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }

.font-mono { font-family: var(--font-mono); }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

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