/* Design System & Variables */
:root {
  --font-brand: 'Outfit', 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Color Palette (Sleek Dark Mode) */
  --bg-core: #09090e;
  --card-glass: rgba(18, 18, 29, 0.65);
  --card-glass-hover: rgba(24, 24, 37, 0.75);
  --border-glass: rgba(255, 255, 255, 0.06);
  --border-glass-focus: rgba(139, 92, 246, 0.4);
  
  --primary: #8b5cf6;
  --primary-hover: #7c3aed;
  --primary-glow: rgba(139, 92, 246, 0.25);
  
  --secondary: rgba(255, 255, 255, 0.08);
  --secondary-hover: rgba(255, 255, 255, 0.14);
  
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --success: #10b981;
  --success-glow: rgba(16, 185, 129, 0.2);
  --error: #ef4444;
  --error-glow: rgba(239, 68, 68, 0.2);
  
  --shadow-lg: 0 20px 40px -15px rgba(0, 0, 0, 0.5);
  
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s ease;
}

/* Reset & Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  scrollbar-width: thin;
  scrollbar-color: var(--border-glass) transparent;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-core);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow-x: hidden;
  position: relative;
}

/* Custom Scrollbar for modern browsers */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-glass);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* Radial Ambient Glow Blobs */
.blob-bg {
  position: absolute;
  width: 50vw;
  height: 50vw;
  max-width: 500px;
  max-height: 500px;
  border-radius: 50%;
  filter: blur(100px);
  z-index: 0;
  opacity: 0.45;
  pointer-events: none;
  animation: floatBlobs 20s infinite alternate ease-in-out;
}

.blob-1 {
  background: radial-gradient(circle, var(--primary) 0%, rgba(139, 92, 246, 0) 70%);
  top: -10%;
  left: -10%;
  animation-duration: 25s;
}

.blob-2 {
  background: radial-gradient(circle, #3b82f6 0%, rgba(59, 130, 246, 0) 70%);
  bottom: -10%;
  right: -10%;
  animation-duration: 30s;
}

.blob-3 {
  background: radial-gradient(circle, #ec4899 0%, rgba(236, 72, 153, 0) 70%);
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 30vw;
  max-width: 300px;
  animation-duration: 20s;
  opacity: 0.15;
}

@keyframes floatBlobs {
  0% {
    transform: translate(0, 0) scale(1);
  }
  100% {
    transform: translate(50px, -50px) scale(1.1);
  }
}

/* App Container */
.app-container {
  width: 100%;
  max-width: 1200px;
  padding: 20px;
  z-index: 10;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Glass Card Definition */
.card {
  background: var(--card-glass);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  padding: 40px;
  box-shadow: var(--shadow-lg);
  transition: var(--transition-smooth);
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.1);
}

/* Auth Card Layout */
.auth-card {
  width: 100%;
  max-width: 480px;
  transform: scale(0.98);
  opacity: 0;
  display: none;
}

.auth-card.active {
  display: block;
  animation: cardEntrance 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes cardEntrance {
  to {
    transform: scale(1);
    opacity: 1;
  }
}

/* Brand Identity */
.brand-logo {
  text-align: center;
  margin-bottom: 24px;
}

.logo-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);
  color: #fff;
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  margin: 0 auto 16px;
  box-shadow: 0 8px 24px var(--primary-glow);
}

.brand-logo h1 {
  font-family: var(--font-brand);
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(to right, #ffffff, #d8b4fe);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 4px;
}

.brand-tagline {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 400;
}

/* Navigation Tabs */
.auth-tabs {
  display: flex;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 12px;
  padding: 4px;
  border: 1px solid var(--border-glass);
  margin-bottom: 28px;
}

.tab-btn {
  flex: 1;
  background: transparent;
  border: none;
  font-family: var(--font-brand);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: var(--transition-fast);
}

.tab-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.02);
}

.tab-btn.active {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(139, 92, 246, 0.2);
}

/* Forms & Inputs */
.form-container {
  position: relative;
}

.auth-form {
  display: none;
}

.auth-form.active {
  display: block;
  animation: formSwitch 0.4s ease forwards;
}

@keyframes formSwitch {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.form-desc {
  font-size: 13.5px;
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.5;
}

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

.input-group {
  margin-bottom: 18px;
  position: relative;
}

.input-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 7px;
  font-family: var(--font-brand);
  letter-spacing: 0.3px;
}

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

.input-icon {
  position: absolute;
  left: 14px;
  color: var(--text-muted);
  font-size: 16px;
  pointer-events: none;
  transition: var(--transition-fast);
}

.input-wrapper input {
  width: 100%;
  background: rgba(0, 0, 0, 0.15);
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  padding: 12px 14px 12px 42px;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text-primary);
  outline: none;
  transition: var(--transition-smooth);
}

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

.input-wrapper input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
  background: rgba(0, 0, 0, 0.25);
}

.input-wrapper input:focus + .input-icon {
  color: var(--primary);
}

.password-toggle {
  position: absolute;
  right: 14px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

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

.input-tip {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 5px;
}

/* Button UI */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-brand);
  font-size: 15px;
  font-weight: 600;
  border-radius: 10px;
  padding: 12px 20px;
  cursor: pointer;
  transition: var(--transition-smooth);
  width: 100%;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #7c3aed 100%);
  color: #ffffff;
  margin-top: 10px;
  box-shadow: 0 4px 14px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover {
  transform: translateY(-1.5px);
  box-shadow: 0 6px 18px rgba(139, 92, 246, 0.45);
}

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

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

.btn-secondary:hover {
  background: var(--secondary-hover);
  border-color: rgba(255, 255, 255, 0.15);
}

/* DASHBOARD CARD & LAYOUT */
.dashboard-card {
  width: 100%;
  max-width: 900px;
  padding: 30px;
  display: none;
  transform: scale(0.96);
  opacity: 0;
}

.dashboard-card.active {
  display: block;
  animation: cardEntrance 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

/* Dashboard Header */
.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-glass);
  margin-bottom: 24px;
  gap: 20px;
  flex-wrap: wrap;
}

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

.dashboard-logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #fff;
}

.header-brand h1 {
  font-family: var(--font-brand);
  font-size: 22px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.badge {
  font-family: var(--font-body);
  font-size: 10px;
  text-transform: uppercase;
  background: var(--primary-glow);
  border: 1px solid rgba(139, 92, 246, 0.3);
  color: #d8b4fe;
  padding: 2px 7px;
  border-radius: 6px;
  font-weight: 600;
}

.header-brand p {
  font-size: 12px;
  color: var(--text-muted);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.user-greeting {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
}

.mini-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: 14px;
  color: #fff;
  box-shadow: 0 0 10px var(--primary-glow);
}

.highlight-text {
  color: #d8b4fe;
  font-weight: 600;
}

.header-actions .btn {
  width: auto;
  padding: 8px 16px;
  font-size: 13.5px;
}

/* User Directory Actions & Views */
.dir-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  gap: 16px;
  flex-wrap: wrap;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
}

.section-title i {
  color: var(--primary);
  font-size: 18px;
}

.section-title h2 {
  font-family: var(--font-brand);
  font-size: 17px;
  font-weight: 600;
}

.search-box {
  position: relative;
  max-width: 300px;
  width: 100%;
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 14px;
}

.search-box input {
  width: 100%;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-glass);
  border-radius: 8px;
  padding: 9px 12px 9px 38px;
  font-size: 13px;
  font-family: var(--font-body);
  color: var(--text-primary);
  outline: none;
  transition: var(--transition-smooth);
}

.search-box input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-glow);
  background: rgba(0, 0, 0, 0.3);
}

/* Table Directory View */
.table-container {
  width: 100%;
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid var(--border-glass);
  background: rgba(0, 0, 0, 0.1);
  margin-bottom: 24px;
}

.user-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13.5px;
}

.user-table th {
  background: rgba(255, 255, 255, 0.02);
  padding: 14px 18px;
  font-family: var(--font-brand);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-glass);
}

.user-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-glass);
  color: var(--text-primary);
}

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

.user-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.015);
}

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

/* User Identity Cell styling */
.user-identity {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: 13px;
  color: #ffffff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.user-name-text {
  font-weight: 600;
  color: var(--text-primary);
  font-family: var(--font-brand);
}

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

.email-link {
  color: #93c5fd;
  text-decoration: none;
  transition: var(--transition-fast);
}

.email-link:hover {
  color: var(--primary);
  text-decoration: underline;
}

/* Mobile Cards grid directory (hidden by default on desktop) */
.user-cards-grid {
  display: none;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 24px;
}

.user-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.user-card-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-card-info {
  display: flex;
  flex-direction: column;
}

.user-card-info .name {
  font-family: var(--font-brand);
  font-weight: 600;
  color: var(--text-primary);
}

.user-card-info .email {
  font-size: 12px;
  color: var(--text-secondary);
}

.user-card-right {
  text-align: right;
  font-size: 11.5px;
  color: var(--text-muted);
}

/* Empty view state */
.empty-state {
  text-align: center;
  padding: 48px 24px;
}

.empty-state.hidden {
  display: none;
}

.empty-icon {
  font-size: 40px;
  color: var(--text-muted);
  margin-bottom: 16px;
  opacity: 0.6;
}

.empty-state h3 {
  font-family: var(--font-brand);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
}

.empty-state p {
  font-size: 13px;
  color: var(--text-secondary);
}

/* Footer layout */
.app-footer {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid var(--border-glass);
  font-size: 11px;
  color: var(--text-muted);
}

/* Toast Notification Styles */
.toast-container {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 350px;
  width: 100%;
}

.toast {
  background: var(--card-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  padding: 14px 18px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  color: var(--text-primary);
  font-size: 13.5px;
  transform: translateX(120%);
  opacity: 0;
  animation: toastSlideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  transition: opacity 0.3s, transform 0.3s;
}

@keyframes toastSlideIn {
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.toast.toast-exit {
  opacity: 0;
  transform: scale(0.9) translateY(-10px);
}

.toast-icon {
  font-size: 16px;
  margin-top: 1px;
  flex-shrink: 0;
}

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

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

.toast-content {
  flex-grow: 1;
}

.toast-title {
  font-family: var(--font-brand);
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 3px;
}

.toast-message {
  color: var(--text-secondary);
  line-height: 1.4;
}

.toast-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 14px;
  transition: var(--transition-fast);
  padding: 0 2px;
}

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

/* Animations */
.animate-slide-down {
  animation: slideDown 0.4s ease-out forwards;
}

.animate-fade-in {
  animation: fadeIn 0.5s ease-out forwards;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* Utility classes */
.hidden {
  display: none !important;
}

/* Responsive Breakpoints */
@media (max-width: 640px) {
  body {
    align-items: flex-start;
    padding: 10px 0;
  }
  
  .app-container {
    padding: 10px;
  }
  
  .card {
    padding: 24px 16px;
    border-radius: 16px;
  }
  
  .auth-tabs {
    margin-bottom: 20px;
  }
  
  .dashboard-header {
    flex-direction: column;
    align-items: flex-start;
    padding-bottom: 16px;
    margin-bottom: 16px;
  }
  
  .header-actions {
    width: 100%;
    justify-content: space-between;
  }
  
  .dir-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .search-box {
    max-width: 100%;
  }
  
  /* Switch table layout to card list on mobile screens */
  .table-container {
    display: none;
  }
  
  .user-cards-grid {
    display: grid;
  }
}

/* SMTP Test Module styling */
.smtp-test-container {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border-glass);
}

.smtp-test-container .section-title {
  margin-bottom: 8px;
}

.email-test-form {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-top: 16px;
  flex-wrap: wrap;
}

.email-test-form .input-group {
  flex-grow: 1;
  max-width: 480px;
  margin-bottom: 0;
}