/* Core Themes and Variables */
:root {
  --font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  
  /* Light Theme Colors */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --border-color: #e2e8f0;
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  --color-primary: #4f46e5;
  --color-primary-hover: #4338ca;
  --color-primary-light: #eeebff;
  
  --color-success: #10b981;
  --color-success-hover: #059669;
  --color-success-light: #ecfdf5;
  
  --color-danger: #ef4444;
  --color-danger-hover: #dc2626;
  --color-danger-light: #fef2f2;
  
  --color-warning: #f59e0b;
  --color-purple: #8b5cf6;
  --color-purple-light: #f5f3ff;
  
  /* Shadows and Rounding */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

body.dark {
  /* Dark Theme Colors */
  --bg-primary: #0b0f19;
  --bg-secondary: #151b2c;
  --bg-tertiary: #1e2640;
  --border-color: #262f4d;
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --color-primary: #6366f1;
  --color-primary-hover: #4f46e5;
  --color-primary-light: #1e2246;
  
  --color-success: #34d399;
  --color-success-hover: #10b981;
  --color-success-light: #142e2a;
  
  --color-danger: #f87171;
  --color-danger-hover: #ef4444;
  --color-danger-light: #341a1a;
  
  --color-purple: #a78bfa;
  --color-purple-light: #2c1e4c;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -4px rgba(0, 0, 0, 0.5);
}

/* Reset and Global Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header Styles */
.main-header {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

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

.logo-area {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.logo-accent {
  color: var(--color-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Main Layout */
.main-content {
  flex: 1;
  padding-top: 40px;
  padding-bottom: 60px;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

/* Cards & Layout Panels */
.card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: background-color var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

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

.card-header {
  padding: 24px 28px;
  border-bottom: 1px solid var(--border-color);
  transition: border-color var(--transition-normal);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.2px;
  margin-bottom: 4px;
}

.card-subtitle {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* KPI Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.stat-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), background-color var(--transition-normal), border-color var(--transition-normal);
}

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

.stat-icon-wrapper {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.stat-icon-wrapper svg {
  width: 26px;
  height: 26px;
}

.stat-icon-wrapper.blue {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

.stat-icon-wrapper.green {
  background-color: var(--color-success-light);
  color: var(--color-success);
}

.stat-icon-wrapper.purple {
  background-color: var(--color-purple-light);
  color: var(--color-purple);
}

.stat-info {
  display: flex;
  flex-direction: column;
}

.stat-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-top: 2px;
}

/* Forms and Inputs */
.redirect-form {
  padding: 28px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
  margin-bottom: 28px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

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

input[type="text"],
input[type="url"] {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-family);
  font-size: 0.95rem;
  color: var(--text-primary);
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

input[type="text"]:focus,
input[type="url"]:focus {
  border-color: var(--color-primary);
  background-color: var(--bg-secondary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.slug-input-group {
  display: flex;
  align-items: stretch;
  border: 1px solid var(--border-color);
  background-color: var(--bg-tertiary);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.slug-input-group:focus-within {
  border-color: var(--color-primary);
  background-color: var(--bg-secondary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.slug-input-group .domain-prefix {
  display: flex;
  align-items: center;
  padding: 0 12px 0 16px;
  font-weight: 600;
  color: var(--text-secondary);
  user-select: none;
  font-size: 0.95rem;
  border-right: 1px solid var(--border-color);
}

.slug-input-group input {
  border: none !important;
  box-shadow: none !important;
  border-radius: 0 !important;
  background-color: transparent !important;
  flex: 1;
}

.form-help {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.form-actions {
  display: flex;
  justify-content: flex-end;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-family);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

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

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

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

.btn-secondary:hover {
  background-color: var(--border-color);
}

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

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

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: var(--radius-md);
}

.btn-icon svg {
  width: 20px;
  height: 20px;
}

.btn-icon-left {
  width: 18px;
  height: 18px;
  margin-right: 8px;
}

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

/* Search and Lists */
.list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.search-wrapper {
  position: relative;
  max-width: 340px;
  width: 100%;
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--text-muted);
  pointer-events: none;
}

#search-input {
  padding-left: 42px;
}

/* Data Table Styles */
.table-container {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

th {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 16px 28px;
  border-bottom: 1px solid var(--border-color);
}

td {
  padding: 18px 28px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  vertical-align: middle;
  transition: background-color var(--transition-fast);
}

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

tr:hover td {
  background-color: rgba(79, 70, 229, 0.02);
}

/* Link Cell Elements */
.short-link-cell {
  display: flex;
  align-items: center;
  gap: 12px;
}

.short-link-anchor {
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.short-link-anchor:hover {
  text-decoration: underline;
}

.btn-copy {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.btn-copy:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.btn-copy svg {
  width: 15px;
  height: 15px;
}

.long-url-cell {
  max-width: 400px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.long-url-anchor {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
}

.long-url-anchor:hover {
  color: var(--text-primary);
  text-decoration: underline;
}

.clicks-badge {
  display: inline-block;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.85rem;
  text-align: center;
  min-width: 44px;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

.timestamp-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Loading, Empty and Error states */
.table-loading-row td {
  padding: 60px 0;
  text-align: center;
}

.table-loading-spinner-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--text-secondary);
}

.table-empty-row td {
  padding: 60px 0;
  text-align: center;
}

.table-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--text-secondary);
  gap: 12px;
}

.table-empty-state svg {
  width: 48px;
  height: 48px;
  color: var(--text-muted);
}

/* Spinner Animation */
.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.table-loading-spinner-container .spinner {
  border: 3px solid var(--border-color);
  border-top-color: var(--color-primary);
  width: 32px;
  height: 32px;
}

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

.hidden {
  display: none !important;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 1000;
}

.toast {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 300px;
  max-width: 450px;
  animation: slideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

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

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

.toast-message {
  font-size: 0.9rem;
  font-weight: 500;
  flex: 1;
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn 0.2s ease;
}

.modal {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 90%;
  max-width: 500px;
  overflow: hidden;
  animation: scaleIn 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.modal-title {
  font-size: 1.1rem;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
}

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

.modal-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

.text-danger {
  color: var(--color-danger);
  font-size: 0.85rem;
  font-weight: 500;
}

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

@keyframes scaleIn {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

/* Footer Styles */
.main-footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 24px 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

/* Responsive Overrides */
@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    gap: 16px;
  }
  
  .list-header {
    flex-direction: column;
    align-items: stretch;
  }
  
  .search-wrapper {
    max-width: 100%;
  }
  
  .footer-container {
    flex-direction: column;
    text-align: center;
  }
}