/*
 * ReptileMail Admin Panel & Webmail
 * Wall3 Bot Dashboard Design System
 * Dark Glass Morphism with Purple Accent
 */

/* ============================================================================
   CSS VARIABLES & THEME DEFINITIONS
   ============================================================================ */

:root {
  /* Dark Mode (Default) */
  --bg-primary: #0a0a0f;
  --bg-secondary: rgba(17, 17, 24, 0.8);
  --bg-input: rgba(30, 30, 45, 0.6);
  --bg-sidebar: rgba(12, 12, 18, 0.95);
  --bg-card: rgba(20, 20, 32, 0.6);
  --text-primary: #e8e8f0;
  --text-secondary: #a0a0b8;
  --text-muted: #6b6b80;
  --accent: #7c5cfc;
  --accent-gradient: linear-gradient(135deg, #7c5cfc 0%, #c084fc 100%);
  --success: #22c55e;
  --danger: #ef4444;
  --warning: #f59e0b;
  --border: rgba(255, 255, 255, 0.06);
  --border-light: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-hover: rgba(255, 255, 255, 0.06);

  /* Spacing & Sizing */
  --radius: 10px;
  --radius-lg: 16px;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 24px;
  --spacing-2xl: 32px;

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen",
    "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue",
    sans-serif;
  --font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono",
    "Courier New", monospace;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-accent: 0 0 20px rgba(124, 92, 252, 0.2);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --accent-glow: rgba(124, 92, 252, 0.15);
  --success-glow: rgba(34, 197, 94, 0.4);

  /* Sidebar */
  --sidebar-width: 260px;
  --navbar-height: 60px;
}

/* Light Mode */
[data-theme="light"] {
  --bg-primary: #f8f8fb;
  --bg-secondary: rgba(245, 245, 250, 0.9);
  --bg-input: rgba(255, 255, 255, 0.7);
  --bg-sidebar: rgba(250, 250, 255, 0.98);
  --bg-card: rgba(255, 255, 255, 0.8);
  --text-primary: #1a1a2e;
  --text-secondary: #5a5a7a;
  --text-muted: #8a8a9e;
  --border: rgba(0, 0, 0, 0.06);
  --border-light: rgba(0, 0, 0, 0.1);
  --glass-border: rgba(0, 0, 0, 0.08);
  --glass-hover: rgba(0, 0, 0, 0.04);
}

/* ============================================================================
   RESET & BASE STYLES
   ============================================================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* Selection */
::selection {
  background-color: var(--accent);
  color: white;
}

::-moz-selection {
  background-color: var(--accent);
  color: white;
}

/* ============================================================================
   TYPOGRAPHY
   ============================================================================ */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  color: var(--text-primary);
}

h1 {
  font-size: 32px;
  line-height: 1.2;
  margin-bottom: var(--spacing-xl);
}

h2 {
  font-size: 24px;
  line-height: 1.3;
  margin-bottom: var(--spacing-lg);
}

h3 {
  font-size: 18px;
  line-height: 1.4;
  margin-bottom: var(--spacing-md);
}

h4 {
  font-size: 16px;
  line-height: 1.4;
  margin-bottom: var(--spacing-md);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--text-secondary);
}

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

a:hover {
  color: #c084fc;
  text-decoration: none;
}

code {
  font-family: var(--font-mono);
  font-size: 12px;
  background-color: var(--bg-input);
  padding: 2px 6px;
  border-radius: 4px;
  color: #a78bfa;
}

/* ============================================================================
   LAYOUT: NAVBAR
   ============================================================================ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--navbar-height);
  background: var(--bg-secondary);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-xl);
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
}

.navbar-logo img {
  height: 32px;
  width: auto;
}

.navbar-center {
  flex: 1;
  display: flex;
  justify-content: center;
  padding: 0 var(--spacing-xl);
}

.navbar-search {
  width: 100%;
  max-width: 400px;
}

.navbar-search input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-input);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 13px;
  transition: all var(--transition-fast);
}

.navbar-search input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(124, 92, 252, 0.2);
  background: var(--bg-input);
}

.navbar-search input::placeholder {
  color: var(--text-muted);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  margin-left: auto;
}

.navbar-action-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 18px;
  padding: var(--spacing-sm);
  border-radius: var(--radius);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.navbar-action-btn:hover {
  color: var(--text-primary);
  background: var(--glass-hover);
}

.navbar-user {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding-left: var(--spacing-md);
  border-left: 1px solid var(--border);
}

.navbar-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
}

.navbar-user-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.navbar-user-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.navbar-user-role {
  font-size: 11px;
  color: var(--text-muted);
}

/* ============================================================================
   LAYOUT: SIDEBAR
   ============================================================================ */

.sidebar {
  position: fixed;
  left: 0;
  top: var(--navbar-height);
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  backdrop-filter: blur(16px);
  border-right: 1px solid var(--glass-border);
  overflow-y: auto;
  padding: var(--spacing-lg) 0;
  z-index: 999;
}

.sidebar-section {
  margin-bottom: var(--spacing-xl);
}

.sidebar-section-title {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  margin: 0 var(--spacing-md);
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  transition: all var(--transition-fast);
  position: relative;
  border-left: 3px solid transparent;
}

.sidebar-item:hover {
  color: var(--text-primary);
  background: var(--glass-hover);
}

.sidebar-item.active {
  color: var(--accent);
  background: rgba(124, 92, 252, 0.1);
  border-left-color: var(--accent);
}

.sidebar-item-icon {
  font-size: 16px;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.7;
}

.sidebar-item.active .sidebar-item-icon {
  opacity: 1;
}

.sidebar-item-label {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidebar-item-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--danger);
  color: white;
  font-size: 10px;
  font-weight: 700;
}

/* Folder List in Sidebar */
.folder-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.folder-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: 8px var(--spacing-lg);
  margin: 0 var(--spacing-md);
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 13px;
  transition: all var(--transition-fast);
  position: relative;
}

.folder-item:hover {
  color: var(--text-primary);
  background: var(--glass-hover);
}

.folder-item.active {
  color: var(--accent);
  background: rgba(124, 92, 252, 0.1);
  border-left: 3px solid var(--accent);
  padding-left: calc(var(--spacing-lg) - 3px);
}

.folder-icon {
  font-size: 14px;
  width: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.folder-unread {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  margin-left: auto;
}

/* ============================================================================
   LAYOUT: MAIN CONTENT AREA
   ============================================================================ */

.main-layout,
.app-layout {
  margin-left: var(--sidebar-width);
  margin-top: var(--navbar-height);
  min-height: calc(100vh - var(--navbar-height));
  background: var(--bg-primary);
}

.content,
.content-area {
  padding: var(--spacing-2xl);
  max-width: 100%;
}

/* Content sections: show/hide */
.content-section {
  display: none;
}

.content-section.active {
  display: block;
}

/* Sidebar category labels */
.sidebar-category {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-top: var(--spacing-md);
}

.sidebar-category:first-child {
  margin-top: 0;
}

/* Sidebar icon wrapper */
.sidebar-icon {
  font-size: 16px;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.7;
  flex-shrink: 0;
}

.sidebar-item.active .sidebar-icon {
  opacity: 1;
}

/* Section header inside content */
.section-header {
  margin-bottom: var(--spacing-2xl);
}

.section-header h2 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.section-header p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 0;
}

.page-header {
  margin-bottom: var(--spacing-2xl);
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.page-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ============================================================================
   CARDS & CONTAINERS
   ============================================================================ */

.card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
}

.card:hover {
  border-color: var(--glass-hover);
  box-shadow: 0 0 20px rgba(124, 92, 252, 0.15);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--border);
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.card-body {
  color: var(--text-secondary);
}

.card-footer {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.settings-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  transition: all var(--transition-base);
}

.settings-card:hover {
  border-color: rgba(124, 92, 252, 0.3);
  box-shadow: var(--shadow-accent);
}

.settings-card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.settings-card-title-icon {
  font-size: 16px;
  color: var(--accent);
}

.settings-card-description {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

/* ============================================================================
   FORM CONTROLS
   ============================================================================ */

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  display: block;
}

.label-required::after {
  content: " *";
  color: var(--danger);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="time"],
input[type="search"],
textarea {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-md);
  background: var(--bg-input);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13px;
  line-height: 1.5;
  transition: all var(--transition-fast);
}

/* ── Wall3-Style Select / Dropdown ── */
select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  width: 100%;
  padding: 11px 40px 11px 14px;
  background: var(--bg-input);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.5;
  cursor: pointer;
  transition: all var(--transition-fast);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%237c5cfc' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
}

select:hover {
  border-color: rgba(124, 92, 252, 0.5);
  background-color: rgba(124, 92, 252, 0.04);
}

select option {
  background: var(--bg-secondary);
  color: var(--text-primary);
  padding: 10px 14px;
  font-size: 13px;
}

select option:checked {
  background: rgba(124, 92, 252, 0.2);
}

[data-theme="light"] select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%237c5cfc' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
}

input[type="text"]::placeholder,
input[type="email"]::placeholder,
input[type="password"]::placeholder,
input[type="number"]::placeholder,
input[type="search"]::placeholder,
textarea::placeholder {
  color: var(--text-muted);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
input[type="date"]:focus,
input[type="time"]:focus,
input[type="search"]:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(124, 92, 252, 0.3), inset 0 0 0 1px rgba(124, 92, 252, 0.1);
  background: rgba(124, 92, 252, 0.05);
}

select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 16px rgba(124, 92, 252, 0.35), inset 0 0 0 1px rgba(124, 92, 252, 0.15);
  background-color: rgba(124, 92, 252, 0.06);
}

textarea {
  min-height: 120px;
  resize: vertical;
  font-family: inherit;
}

/* Custom Select (legacy wrapper — selects now styled globally) */
.custom-select {
  position: relative;
  display: inline-block;
  width: 100%;
}

.custom-select::after {
  display: none; /* arrow now via background-image on select */
}

/* Form Helpers */
.form-help {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.form-error {
  font-size: 12px;
  color: var(--danger);
  margin-top: 4px;
}

.form-success {
  font-size: 12px;
  color: var(--success);
  margin-top: 4px;
}

.form-inline {
  display: flex;
  gap: var(--spacing-lg);
  align-items: flex-end;
}

.form-inline .form-group {
  flex: 1;
  margin-bottom: 0;
}

/* ============================================================================
   BUTTONS
   ============================================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  border: none;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
  position: relative;
  overflow: hidden;
}

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

/* Primary Button */
.btn-primary {
  background: var(--accent-gradient);
  color: white;
  border: none;
  box-shadow: 0 4px 16px rgba(124, 92, 252, 0.3);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(124, 92, 252, 0.4);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(124, 92, 252, 0.3);
}

/* Outline Button */
.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.btn-outline:hover:not(:disabled) {
  background: rgba(124, 92, 252, 0.1);
  border-color: #c084fc;
  color: #c084fc;
}

/* Secondary Button */
.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
}

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

/* Danger Button */
.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-danger:hover:not(:disabled) {
  background: rgba(239, 68, 68, 0.25);
  border-color: var(--danger);
}

/* Success Button */
.btn-success {
  background: rgba(34, 197, 94, 0.15);
  color: var(--success);
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.btn-success:hover:not(:disabled) {
  background: rgba(34, 197, 94, 0.25);
  border-color: var(--success);
}

/* Size Variants */
.btn-sm {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 12px;
}

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-xl);
  font-size: 14px;
}

/* Icon Button */
.btn-icon {
  padding: var(--spacing-md);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
}

.btn-icon:hover {
  color: var(--text-primary);
  background: var(--glass-hover);
  border-color: var(--glass-hover);
}

.btn-icon.btn-icon-primary {
  background: rgba(124, 92, 252, 0.15);
  color: var(--accent);
  border: 1px solid rgba(124, 92, 252, 0.3);
}

.btn-icon.btn-icon-primary:hover {
  background: rgba(124, 92, 252, 0.25);
  border-color: var(--accent);
}

/* Button Group */
.btn-group {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.btn-group.vertical {
  flex-direction: column;
}

/* ============================================================================
   TOGGLE SWITCHES
   ============================================================================ */

.toggle {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 28px;
  cursor: pointer;
}

.toggle input {
  display: none;
}

.toggle-slider {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-input);
  border-radius: 14px;
  border: 1px solid var(--glass-border);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  padding: 2px;
}

.toggle-slider::before {
  content: "";
  position: absolute;
  height: 22px;
  width: 22px;
  left: 3px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: all var(--transition-fast);
}

.toggle input:checked ~ .toggle-slider {
  background: rgba(124, 92, 252, 0.2);
  border-color: var(--accent);
}

.toggle input:checked ~ .toggle-slider::before {
  transform: translateX(20px);
  background: var(--accent);
}

.toggle input:disabled ~ .toggle-slider {
  opacity: 0.5;
  cursor: not-allowed;
}

.toggle-container {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

/* ============================================================================
   TABS
   ============================================================================ */

.tabs {
  display: flex;
  gap: var(--spacing-md);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--spacing-lg);
  overflow-x: auto;
}

.tab-button {
  padding: var(--spacing-md) var(--spacing-lg);
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  position: relative;
}

.tab-button:hover {
  color: var(--text-primary);
}

.tab-button.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* Pill Style Tabs */
.tabs.pills {
  border-bottom: none;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  gap: var(--spacing-sm);
}

.tabs.pills .tab-button {
  border-bottom: none;
  margin-bottom: 0;
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius);
  background: transparent;
}

.tabs.pills .tab-button.active {
  background: var(--accent);
  color: white;
  border-bottom-color: transparent;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn var(--transition-base);
}

/* ============================================================================
   TABLES
   ============================================================================ */

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: transparent;
}

.data-table th {
  background: var(--bg-card);
  border-bottom: 2px solid var(--glass-border);
  padding: var(--spacing-md) var(--spacing-lg);
  text-align: left;
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}

.data-table td {
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 13px;
}

.data-table tbody tr {
  transition: all var(--transition-fast);
}

.data-table tbody tr:hover {
  background: rgba(124, 92, 252, 0.05);
}

.data-table tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.01);
}

.data-table td:first-child {
  font-weight: 500;
  color: var(--text-primary);
}

.data-table a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.data-table a:hover {
  text-decoration: underline;
}

/* Responsive Table */
@media (max-width: 768px) {
  .data-table {
    font-size: 12px;
  }

  .data-table th,
  .data-table td {
    padding: var(--spacing-sm) var(--spacing-md);
  }
}

/* ============================================================================
   BADGES
   ============================================================================ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px var(--spacing-md);
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.badge-primary {
  background: rgba(124, 92, 252, 0.15);
  color: var(--accent);
}

.badge-success {
  background: rgba(34, 197, 94, 0.15);
  color: var(--success);
}

.badge-danger {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.15);
  color: var(--warning);
}

.badge-info {
  background: rgba(59, 130, 246, 0.15);
  color: #3b82f6;
}

.badge-secondary {
  background: var(--bg-input);
  color: var(--text-secondary);
}

/* ============================================================================
   STATS CARDS
   ============================================================================ */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

.stat-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200px;
  height: 200px;
  background: var(--accent-gradient);
  border-radius: 50%;
  opacity: 0.05;
  transition: all var(--transition-slow);
}

.stat-card:hover {
  border-color: rgba(124, 92, 252, 0.3);
  box-shadow: 0 0 24px rgba(124, 92, 252, 0.15);
}

.stat-card:hover::before {
  top: -25%;
  right: -25%;
}

.stat-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: var(--spacing-md);
}

.stat-value {
  font-size: 36px;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-md);
}

.stat-change {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 4px;
  background: rgba(34, 197, 94, 0.15);
  color: var(--success);
}

.stat-change.negative {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
}

/* ============================================================================
   MODALS & DIALOGS
   ============================================================================ */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

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

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  transform: scale(0.95);
  opacity: 0;
  transition: all var(--transition-base);
}

.modal-overlay.active .modal {
  transform: scale(1);
  opacity: 1;
}

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

.modal-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 24px;
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  transition: all var(--transition-fast);
}

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

.modal-body {
  margin-bottom: var(--spacing-lg);
}

.modal-footer {
  display: flex;
  gap: var(--spacing-md);
  justify-content: flex-end;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border);
}

/* ============================================================================
   TOASTS & NOTIFICATIONS
   ============================================================================ */

.toast-container {
  position: fixed;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  z-index: 3000;
  pointer-events: none;
}

.toast {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  min-width: 300px;
  max-width: 450px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  pointer-events: auto;
  animation: slideUp var(--transition-base);
}

.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 #3b82f6;
}

.toast-icon {
  font-size: 20px;
  flex-shrink: 0;
  margin-top: 2px;
}

.toast-content {
  flex: 1;
}

.toast-title {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.toast-message {
  font-size: 13px;
  color: var(--text-secondary);
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 16px;
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
  transition: color var(--transition-fast);
}

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

/* ============================================================================
   LOADING STATES
   ============================================================================ */

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spinner-sm {
  width: 24px;
  height: 24px;
  border-width: 2px;
}

.spinner-lg {
  width: 56px;
  height: 56px;
  border-width: 4px;
}

.spinner-center {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
}

.skeleton {
  background: linear-gradient(
    90deg,
    var(--bg-input) 0%,
    rgba(124, 92, 252, 0.1) 50%,
    var(--bg-input) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
  border-radius: var(--radius);
}

.skeleton-text {
  height: 16px;
  border-radius: 4px;
}

.skeleton-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
}

/* ============================================================================
   EMAIL-SPECIFIC STYLES
   ============================================================================ */

.email-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  overflow: hidden;
}

.email-item {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.email-item:last-child {
  border-bottom: none;
}

.email-item:hover {
  background: rgba(124, 92, 252, 0.05);
}

.email-item.unread {
  background: rgba(124, 92, 252, 0.08);
  font-weight: 500;
}

.email-item.selected {
  background: rgba(124, 92, 252, 0.15);
}

.email-item-checkbox {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  flex-shrink: 0;
}

.email-item-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: 14px;
}

.email-item-content {
  flex: 1;
  min-width: 0;
}

.email-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
  gap: var(--spacing-md);
}

.email-item-from {
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.email-item-date {
  font-size: 12px;
  color: var(--text-muted);
  flex-shrink: 0;
  white-space: nowrap;
}

.email-item-subject {
  font-weight: 500;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-bottom: 4px;
}

.email-item-preview {
  font-size: 12px;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.email-view {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
}

.email-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.email-from-row {
  display: flex;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  align-items: flex-start;
}

.email-details {
  display: grid;
  gap: var(--spacing-md);
}

.email-detail-row {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: var(--spacing-lg);
  font-size: 13px;
}

.email-detail-label {
  color: var(--text-muted);
  font-weight: 600;
}

.email-detail-value {
  color: var(--text-primary);
}

.email-body {
  line-height: 1.8;
  color: var(--text-secondary);
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.email-body p {
  margin-bottom: var(--spacing-md);
}

.email-attachments {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border);
}

.attachment-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.attachment-chip {
  background: var(--bg-input);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: var(--spacing-sm) var(--spacing-md);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 12px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.attachment-chip:hover {
  background: var(--glass-hover);
  border-color: var(--accent);
}

.attachment-icon {
  font-size: 14px;
  opacity: 0.7;
}

.attachment-name {
  color: var(--text-primary);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.attachment-size {
  color: var(--text-muted);
  font-size: 11px;
}

.compose-form {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
}

.compose-section {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--border);
}

.compose-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.compose-field {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.compose-field-label {
  width: 60px;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
}

.compose-field-input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--text-primary);
  font-size: 13px;
}

.compose-field-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(124, 92, 252, 0.3);
}

.compose-body {
  width: 100%;
  min-height: 300px;
  background: var(--bg-input);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: var(--spacing-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13px;
  resize: vertical;
}

.compose-body:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(124, 92, 252, 0.3);
}

.compose-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: space-between;
}

/* ============================================================================
   DOMAIN & MAILBOX MANAGEMENT
   ============================================================================ */

.domain-card {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
}

.domain-card:hover {
  border-color: rgba(124, 92, 252, 0.3);
  box-shadow: var(--shadow-accent);
}

.domain-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--border);
}

.domain-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.domain-status {
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
}

.domain-status.active {
  background: rgba(34, 197, 94, 0.15);
  color: var(--success);
}

.domain-status.pending {
  background: rgba(245, 158, 11, 0.15);
  color: var(--warning);
}

.domain-status.error {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
}

.domain-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.domain-info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.domain-info-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
}

.domain-info-value {
  font-size: 14px;
  color: var(--text-primary);
  word-break: break-all;
}

.dns-record {
  background: var(--bg-input);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.dns-record-content {
  flex: 1;
  min-width: 0;
}

.dns-record-type {
  display: inline-block;
  background: rgba(124, 92, 252, 0.15);
  color: var(--accent);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  margin-bottom: 4px;
}

.dns-record-value {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-primary);
  word-break: break-all;
  word-wrap: break-word;
}

.dns-copy-btn {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--radius);
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.dns-copy-btn:hover {
  background: rgba(124, 92, 252, 0.15);
  color: #c084fc;
}

.mailbox-row {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all var(--transition-fast);
}

.mailbox-row:hover {
  border-color: rgba(124, 92, 252, 0.3);
  background: rgba(124, 92, 252, 0.05);
}

.mailbox-info {
  flex: 1;
}

.mailbox-address {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.mailbox-meta {
  font-size: 12px;
  color: var(--text-muted);
}

.mailbox-quota {
  flex: 0 0 300px;
  margin: 0 var(--spacing-lg);
}

.quota-bar {
  height: 6px;
  background: var(--bg-input);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 4px;
}

.quota-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--success), var(--warning));
  border-radius: 3px;
  transition: all var(--transition-base);
}

.quota-fill.critical {
  background: var(--danger);
}

.quota-text {
  font-size: 11px;
  color: var(--text-muted);
}

/* ============================================================================
   AVATAR & COLORS
   ============================================================================ */

.avatar-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-weight: 600;
  font-size: 13px;
  color: white;
  flex-shrink: 0;
}

.avatar-circle.color-1 {
  background: linear-gradient(135deg, #7c5cfc, #c084fc);
}

.avatar-circle.color-2 {
  background: linear-gradient(135deg, #3b82f6, #60a5fa);
}

.avatar-circle.color-3 {
  background: linear-gradient(135deg, #06b6d4, #22d3ee);
}

.avatar-circle.color-4 {
  background: linear-gradient(135deg, #ec4899, #f43f5e);
}

.avatar-circle.color-5 {
  background: linear-gradient(135deg, #f59e0b, #fbbf24);
}

.avatar-circle.color-6 {
  background: linear-gradient(135deg, #22c55e, #86efac);
}

/* ============================================================================
   THEME TOGGLE
   ============================================================================ */

.theme-toggle {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 18px;
  padding: var(--spacing-sm);
  border-radius: var(--radius);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  color: var(--text-primary);
  background: var(--glass-hover);
}

/* ============================================================================
   ANIMATIONS
   ============================================================================ */

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

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

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* ============================================================================
   LOGIN PAGE
   ============================================================================ */

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg-primary) 0%, rgba(124, 92, 252, 0.1) 100%);
  padding: var(--spacing-lg);
}

.login-container {
  width: 100%;
  max-width: 420px;
}

.login-card {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-lg);
}

.login-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-2xl);
}

.login-logo-icon {
  font-size: 32px;
}

.login-logo-text {
  font-size: 24px;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-heading {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  text-align: center;
}

.login-subtext {
  font-size: 13px;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.login-form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.login-form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.login-form-input {
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--bg-input);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 13px;
  transition: all var(--transition-fast);
}

.login-form-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(124, 92, 252, 0.3);
  background: rgba(124, 92, 252, 0.05);
}

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

.login-remember {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  font-size: 13px;
}

.login-remember-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
  color: var(--text-secondary);
}

.login-remember-label input {
  cursor: pointer;
}

.login-forgot {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.login-forgot:hover {
  color: #c084fc;
  text-decoration: underline;
}

.login-submit {
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--accent-gradient);
  color: white;
  border: none;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 16px rgba(124, 92, 252, 0.3);
}

.login-submit:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(124, 92, 252, 0.4);
}

.login-submit:active:not(:disabled) {
  transform: translateY(0);
}

.login-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.login-divider {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}

.login-divider::before,
.login-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.login-divider-text {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
}

.login-signup {
  text-align: center;
  font-size: 13px;
  color: var(--text-secondary);
}

.login-signup a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.login-signup a:hover {
  color: #c084fc;
  text-decoration: underline;
}

/* ============================================================================
   RESPONSIVE DESIGN
   ============================================================================ */

@media (max-width: 768px) {
  :root {
    --sidebar-width: 0;
  }

  .sidebar {
    position: fixed;
    left: -100%;
    transition: left var(--transition-base);
    width: 260px;
    z-index: 1500;
  }

  .sidebar.mobile-open {
    left: var(--navbar-height);
  }

  .main-layout,
  .app-layout {
    margin-left: 0;
  }

  .content,
  .content-area {
    padding: var(--spacing-xl);
  }

  .navbar {
    padding: 0 var(--spacing-lg);
  }

  .navbar-center {
    display: none;
  }

  .navbar-logo {
    font-size: 16px;
  }

  .navbar-search {
    max-width: 100%;
  }

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

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

  .form-inline {
    flex-direction: column;
  }

  .form-inline .form-group {
    margin-bottom: var(--spacing-lg);
  }

  .email-item {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

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

  .email-item-from {
    width: 100%;
  }

  .email-item-date {
    align-self: flex-end;
  }

  .domain-info {
    grid-template-columns: 1fr;
  }

  .mailbox-row {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-md);
  }

  .mailbox-quota {
    width: 100%;
    margin: 0;
  }

  .modal {
    width: 95%;
    max-width: 100%;
  }

  .toast-container {
    left: var(--spacing-lg);
    right: var(--spacing-lg);
  }

  .toast {
    min-width: auto;
    max-width: none;
  }

  h1 {
    font-size: 24px;
  }

  h2 {
    font-size: 20px;
  }

  h3 {
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-xl: 16px;
    --spacing-2xl: 20px;
  }

  .navbar {
    height: 56px;
    padding: 0 var(--spacing-md);
  }

  .navbar-logo {
    font-size: 14px;
  }

  .navbar-actions {
    gap: var(--spacing-md);
  }

  .content {
    padding: var(--spacing-lg);
  }

  .card {
    padding: var(--spacing-lg);
  }

  .login-card {
    padding: var(--spacing-xl);
  }

  .modal {
    width: 100%;
    max-height: 100%;
    border-radius: 12px 12px 0 0;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
  }

  .modal-overlay.active .modal {
    animation: slideUp var(--transition-base);
  }

  .btn {
    width: 100%;
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .btn-group {
    flex-direction: column;
  }

  .tabs {
    gap: var(--spacing-sm);
  }

  .tab-button {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 12px;
  }
}

/* ============================================================================
   UTILITY CLASSES
   ============================================================================ */

.hidden {
  display: none !important;
}

.visible {
  display: block !important;
}

.invisible {
  visibility: hidden !important;
}

.opacity-50 {
  opacity: 0.5;
}

.opacity-75 {
  opacity: 0.75;
}

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

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

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

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

.text-secondary {
  color: var(--text-secondary);
}

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

.text-accent {
  color: var(--accent);
}

.text-success {
  color: var(--success);
}

.text-danger {
  color: var(--danger);
}

.text-warning {
  color: var(--warning);
}

.font-bold {
  font-weight: 700;
}

.font-semibold {
  font-weight: 600;
}

.font-medium {
  font-weight: 500;
}

.no-margin {
  margin: 0 !important;
}

.no-padding {
  padding: 0 !important;
}

.rounded {
  border-radius: var(--radius);
}

.rounded-lg {
  border-radius: var(--radius-lg);
}

.rounded-full {
  border-radius: 9999px;
}

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.line-clamp-2 {
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.line-clamp-3 {
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

.items-center {
  align-items: center;
}

.items-start {
  align-items: flex-start;
}

.items-end {
  align-items: flex-end;
}

.justify-between {
  justify-content: space-between;
}

.justify-center {
  justify-content: center;
}

.justify-start {
  justify-content: flex-start;
}

.justify-end {
  justify-content: flex-end;
}

.gap-xs {
  gap: var(--spacing-xs);
}

.gap-sm {
  gap: var(--spacing-sm);
}

.gap-md {
  gap: var(--spacing-md);
}

.gap-lg {
  gap: var(--spacing-lg);
}

.gap-xl {
  gap: var(--spacing-xl);
}

.gap-2xl {
  gap: var(--spacing-2xl);
}

.m-0 {
  margin: 0;
}

.m-1 {
  margin: var(--spacing-sm);
}

.m-2 {
  margin: var(--spacing-md);
}

.m-3 {
  margin: var(--spacing-lg);
}

.m-4 {
  margin: var(--spacing-xl);
}

.m-5 {
  margin: var(--spacing-2xl);
}

.p-0 {
  padding: 0;
}

.p-1 {
  padding: var(--spacing-sm);
}

.p-2 {
  padding: var(--spacing-md);
}

.p-3 {
  padding: var(--spacing-lg);
}

.p-4 {
  padding: var(--spacing-xl);
}

.p-5 {
  padding: var(--spacing-2xl);
}

.shadow-none {
  box-shadow: none;
}

.shadow-sm {
  box-shadow: var(--shadow-sm);
}

.shadow-md {
  box-shadow: var(--shadow-md);
}

.shadow-lg {
  box-shadow: var(--shadow-lg);
}

.shadow-accent {
  box-shadow: var(--shadow-accent);
}

.cursor-pointer {
  cursor: pointer;
}

.cursor-default {
  cursor: default;
}

.pointer-events-none {
  pointer-events: none;
}

.pointer-events-auto {
  pointer-events: auto;
}

.transition-fast {
  transition: all var(--transition-fast);
}

.transition-base {
  transition: all var(--transition-base);
}

.transition-slow {
  transition: all var(--transition-slow);
}