/* TaskFlow - Main Stylesheet */
/* Global Reset and Base Styles */

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

:root {
  --bg-primary: #F8FAFC;
  --bg-secondary: #F1F5F9;
  --bg-card: #FFFFFF;
  --color-green-dark: #166534;
  --color-green: #22C55E;
  --color-accent: #DCFCE7;
  --color-border: #CBD5E1;
  --color-heading: #0F172A;
  --color-body: #475569;
  --color-muted: #64748B;
  --color-error: #DC2626;
  --color-warning: #CA8A04;
  --color-success: #16A34A;
  --color-blue: #3B82F6;
  --color-blue-light: #EFF6FF;
  --color-purple: #7C3AED;
  --color-purple-light: #F5F3FF;
  --color-orange: #EA580C;
  --color-orange-light: #FFF7ED;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 2px 0 rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -1px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 10px 10px -5px rgba(0,0,0,0.03);
  --transition: 150ms ease;
  --sidebar-width: 240px;
}

/* Dark Mode Variables */
[data-theme="dark"] {
  --bg-primary: #0F172A;
  --bg-secondary: #1E293B;
  --bg-card: #1E293B;
  --color-border: #334155;
  --color-heading: #F1F5F9;
  --color-body: #CBD5E1;
  --color-muted: #94A3B8;
  --color-accent: #166534;
  --color-blue-light: #1E3A5F;
  --color-purple-light: #2D1B69;
  --color-orange-light: #431407;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-body);
  background-color: var(--bg-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-heading);
  font-weight: 600;
  line-height: 1.3;
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

a {
  color: var(--color-green-dark);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover { color: var(--color-green); }

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol { list-style: none; }

button {
  font-family: var(--font-family);
  cursor: pointer;
  border: none;
  background: none;
  transition: all var(--transition);
}

input, textarea, select {
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
}

/* Layout Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-lg {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }
.grid { display: grid; }
.w-full { width: 100%; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-sm { font-size: var(--font-size-sm); }
.text-xs { font-size: var(--font-size-xs); }
.text-lg { font-size: var(--font-size-lg); }
.text-muted { color: var(--color-muted); }
.text-body { color: var(--color-body); }
.text-heading { color: var(--color-heading); }
.text-success { color: var(--color-success); }
.text-error { color: var(--color-error); }
.text-warning { color: var(--color-warning); }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hidden { display: none !important; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}
.relative { position: relative; }
.absolute { position: absolute; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.rounded { border-radius: var(--radius-md); }
.overflow-hidden { overflow: hidden; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  font-size: var(--font-size-sm);
  font-weight: 500;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  text-decoration: none;
  line-height: 1.4;
}

.btn:focus-visible {
  outline: 2px solid var(--color-green);
  outline-offset: 2px;
}

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

.btn-primary:hover {
  background-color: #14532D;
  border-color: #14532D;
  color: #ffffff;
}

.btn-secondary {
  background-color: var(--bg-card);
  color: var(--color-heading);
  border-color: var(--color-border);
}

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

.btn-ghost {
  background-color: transparent;
  color: var(--color-body);
  border-color: transparent;
}

.btn-ghost:hover {
  background-color: var(--bg-secondary);
  color: var(--color-heading);
}

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

.btn-danger:hover {
  background-color: #B91C1C;
  border-color: #B91C1C;
  color: #ffffff;
}

.btn-sm {
  padding: 0.3rem 0.75rem;
  font-size: var(--font-size-xs);
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: var(--font-size-base);
}

.btn-icon {
  padding: 0.5rem;
  border-radius: var(--radius-md);
}

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

/* Form Elements */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  margin-bottom: 1.25rem;
}

.form-label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-heading);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: var(--font-size-sm);
  color: var(--color-heading);
  background-color: var(--bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--color-green-dark);
  box-shadow: 0 0 0 3px rgba(22,101,52,0.1);
}

.form-input::placeholder, .form-textarea::placeholder {
  color: var(--color-muted);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748B' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2rem;
}

.form-hint {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
}

.form-error {
  font-size: var(--font-size-xs);
  color: var(--color-error);
}

.form-input.error, .form-select.error, .form-textarea.error {
  border-color: var(--color-error);
}

/* Cards */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.card-body {
  padding: 1.5rem;
}

.card-header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--color-border);
  background-color: var(--bg-secondary);
}

/* Badges and Tags */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  font-size: var(--font-size-xs);
  font-weight: 500;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.badge-green {
  background-color: var(--color-accent);
  color: var(--color-green-dark);
}

.badge-blue {
  background-color: #DBEAFE;
  color: #1D4ED8;
}

.badge-red {
  background-color: #FEE2E2;
  color: #991B1B;
}

.badge-yellow {
  background-color: #FEF3C7;
  color: #92400E;
}

.badge-gray {
  background-color: var(--bg-secondary);
  color: var(--color-muted);
}

.badge-purple {
  background-color: #EDE9FE;
  color: #5B21B6;
}

/* Avatars */
.avatar {
  border-radius: var(--radius-full);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  flex-shrink: 0;
  background-color: var(--color-accent);
  color: var(--color-green-dark);
}

.avatar-xs { width: 24px; height: 24px; font-size: 10px; }
.avatar-sm { width: 32px; height: 32px; font-size: 12px; }
.avatar-md { width: 40px; height: 40px; font-size: 14px; }
.avatar-lg { width: 56px; height: 56px; font-size: 18px; }
.avatar-xl { width: 80px; height: 80px; font-size: 24px; }

/* Dividers */
.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 1rem 0;
}

/* Toasts / Alerts */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  border: 1px solid transparent;
}

.alert-success {
  background-color: #F0FDF4;
  border-color: #BBF7D0;
  color: var(--color-success);
}

.alert-error {
  background-color: #FEF2F2;
  border-color: #FECACA;
  color: var(--color-error);
}

.alert-warning {
  background-color: #FFFBEB;
  border-color: #FDE68A;
  color: var(--color-warning);
}

.alert-info {
  background-color: var(--color-blue-light);
  border-color: #BFDBFE;
  color: #1D4ED8;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background-color: var(--color-heading);
  color: #F8FAFC;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  box-shadow: var(--shadow-lg);
  pointer-events: all;
  animation: slideInRight 0.2s ease;
  max-width: 320px;
}

.toast.success { background-color: var(--color-success); }
.toast.error { background-color: var(--color-error); }
.toast.warning { background-color: var(--color-warning); }

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

/* Public Navigation (Landing) */
.nav-public {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(248, 250, 252, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav-public-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 60px;
  max-width: 1280px;
  margin: 0 auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.nav-logo-mark {
  width: 30px;
  height: 30px;
  background-color: var(--color-green-dark);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-logo-mark svg {
  width: 18px;
  height: 18px;
  color: #ffffff;
}

.nav-logo-text {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-heading);
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-links a {
  padding: 0.4rem 0.75rem;
  font-size: var(--font-size-sm);
  color: var(--color-body);
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: all var(--transition);
}

.nav-links a:hover {
  background-color: var(--bg-secondary);
  color: var(--color-heading);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Mobile Menu Toggle */
.nav-mobile-toggle {
  display: none;
  padding: 0.5rem;
  border-radius: var(--radius-md);
  color: var(--color-body);
}

.nav-mobile-menu {
  display: none;
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--color-border);
  background-color: var(--bg-card);
  flex-direction: column;
  gap: 0.25rem;
}

.nav-mobile-menu a {
  display: block;
  padding: 0.5rem 0.75rem;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-body);
  border-radius: var(--radius-md);
}

.nav-mobile-menu a:hover {
  background-color: var(--bg-secondary);
  color: var(--color-heading);
}

/* App Sidebar */
.app-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  background-color: var(--bg-card);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 50;
  transition: transform 0.2s ease;
  overflow-y: auto;
}

.sidebar-header {
  padding: 1rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 60px;
}

.sidebar-nav {
  flex: 1;
  padding: 0.75rem 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.sidebar-section-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  padding: 0.5rem 0.75rem 0.25rem;
  margin-top: 0.5rem;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-body);
  text-decoration: none;
  transition: all var(--transition);
  position: relative;
}

.sidebar-link:hover {
  background-color: var(--bg-secondary);
  color: var(--color-heading);
}

.sidebar-link.active {
  background-color: var(--color-accent);
  color: var(--color-green-dark);
}

.sidebar-link svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.sidebar-badge {
  margin-left: auto;
  background-color: var(--color-green-dark);
  color: white;
  font-size: 10px;
  font-weight: 600;
  padding: 0.1rem 0.4rem;
  border-radius: var(--radius-full);
  min-width: 18px;
  text-align: center;
}

.sidebar-footer {
  padding: 0.75rem;
  border-top: 1px solid var(--color-border);
}

/* App Main Content */
.app-main {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--color-border);
  padding: 0 1.5rem;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.app-header-left {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex: 1;
}

.app-header-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.app-content {
  flex: 1;
  padding: 1.5rem;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.page-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-heading);
  letter-spacing: -0.02em;
}

.page-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  margin-top: 0.125rem;
}

/* Search Bar */
.search-bar {
  position: relative;
  display: flex;
  align-items: center;
}

.search-bar input {
  padding: 0.4rem 0.75rem 0.4rem 2.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--bg-secondary);
  color: var(--color-heading);
  font-size: var(--font-size-sm);
  width: 240px;
  transition: all var(--transition);
  outline: none;
}

.search-bar input:focus {
  width: 300px;
  border-color: var(--color-green-dark);
  background-color: var(--bg-card);
  box-shadow: 0 0 0 3px rgba(22,101,52,0.08);
}

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

.search-bar-icon {
  position: absolute;
  left: 0.625rem;
  color: var(--color-muted);
  width: 16px;
  height: 16px;
  pointer-events: none;
}

.search-spinner {
  position: absolute;
  right: 0.625rem;
  width: 14px;
  height: 14px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-green-dark);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Dropdown Menus */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 0.375rem);
  right: 0;
  background-color: var(--bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  min-width: 200px;
  z-index: 200;
  overflow: hidden;
  animation: fadeIn 0.12s ease;
}

.dropdown-menu.dropdown-left {
  right: auto;
  left: 0;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.dropdown-header {
  padding: 0.625rem 0.875rem;
  border-bottom: 1px solid var(--color-border);
}

.dropdown-header .name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-heading);
}

.dropdown-header .email {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 0.875rem;
  font-size: var(--font-size-sm);
  color: var(--color-body);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  width: 100%;
}

.dropdown-item:hover {
  background-color: var(--bg-secondary);
  color: var(--color-heading);
}

.dropdown-item svg {
  width: 14px;
  height: 14px;
  color: var(--color-muted);
  flex-shrink: 0;
}

.dropdown-item.danger { color: var(--color-error); }
.dropdown-item.danger:hover { background-color: #FEF2F2; }
.dropdown-item.danger svg { color: var(--color-error); }

.dropdown-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 0.25rem 0;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.5);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  animation: fadeOverlay 0.15s ease;
}

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

.modal {
  background-color: var(--bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp 0.15s ease;
}

.modal-lg { max-width: 700px; }
.modal-sm { max-width: 360px; }

@keyframes slideUp {
  from { transform: translateY(12px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.modal-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-heading);
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--color-border);
}

/* Tables */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.table th {
  padding: 0.625rem 1rem;
  text-align: left;
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-muted);
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
  white-space: nowrap;
  user-select: none;
}

.table th:hover { color: var(--color-heading); }

.table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-body);
  vertical-align: middle;
}

.table tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background-color: var(--bg-secondary); }

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.pagination-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-body);
  background-color: var(--bg-card);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.pagination-btn:hover {
  background-color: var(--bg-secondary);
  color: var(--color-heading);
}

.pagination-btn.active {
  background-color: var(--color-green-dark);
  border-color: var(--color-green-dark);
  color: white;
}

.pagination-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Progress Bars */
.progress-bar {
  height: 6px;
  background-color: var(--bg-secondary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background-color: var(--color-green);
  transition: width 0.4s ease;
}

.progress-fill.danger { background-color: var(--color-error); }
.progress-fill.warning { background-color: var(--color-warning); }

/* Tabs */
.tabs {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  gap: 0;
  overflow-x: auto;
}

.tab-btn {
  padding: 0.625rem 1rem;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition);
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
}

.tab-btn:hover { color: var(--color-heading); }
.tab-btn.active {
  color: var(--color-green-dark);
  border-bottom-color: var(--color-green-dark);
}

/* Toggle/Switch */
.toggle {
  position: relative;
  width: 40px;
  height: 22px;
  flex-shrink: 0;
}

.toggle input { opacity: 0; width: 0; height: 0; position: absolute; }

.toggle-slider {
  position: absolute;
  inset: 0;
  background-color: var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.toggle-slider::before {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  left: 3px;
  top: 3px;
  background-color: white;
  border-radius: 50%;
  transition: transform 0.2s ease;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

.toggle input:checked + .toggle-slider {
  background-color: var(--color-green-dark);
}

.toggle input:checked + .toggle-slider::before {
  transform: translateX(18px);
}

.toggle input:focus-visible + .toggle-slider {
  outline: 2px solid var(--color-green-dark);
  outline-offset: 2px;
}

/* Skeleton loading */
.skeleton {
  background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--color-border) 50%, var(--bg-secondary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: var(--radius-md);
}

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

/* Landing Page Specific */
.hero {
  padding: 6rem 2rem 5rem;
  text-align: center;
  background: linear-gradient(180deg, var(--bg-primary) 0%, #f0fdf4 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(34,197,94,0.12), transparent);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.3rem 0.875rem;
  background-color: var(--color-accent);
  border: 1px solid rgba(34,197,94,0.3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-green-dark);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--color-heading);
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: 1.25rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero-title span {
  color: var(--color-green-dark);
  position: relative;
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-muted);
  max-width: 560px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.hero-note {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
}

.hero-preview {
  max-width: 900px;
  margin: 0 auto;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xl), 0 40px 80px -20px rgba(0,0,0,0.12);
  overflow: hidden;
  position: relative;
}

.hero-preview-bar {
  background-color: var(--bg-secondary);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--color-border);
}

.hero-preview-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--color-border);
}

.hero-preview-url {
  flex: 1;
  height: 22px;
  background-color: var(--bg-card);
  border-radius: var(--radius-sm);
  font-size: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  max-width: 200px;
  margin: 0 auto;
  padding: 0 0.5rem;
  border: 1px solid var(--color-border);
}

/* Feature Section */
.features-section {
  padding: 5rem 2rem;
  background-color: var(--bg-card);
}

.section-label {
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-green-dark);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--color-heading);
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.section-description {
  font-size: var(--font-size-base);
  color: var(--color-muted);
  max-width: 540px;
  line-height: 1.7;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.feature-card {
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--bg-primary);
  transition: all 0.2s ease;
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(34,197,94,0.3);
  transform: translateY(-2px);
}

.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background-color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  color: var(--color-green-dark);
}

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

.feature-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: 0.5rem;
}

.feature-desc {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  line-height: 1.6;
  margin: 0;
}

/* Pricing Section */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  max-width: 960px;
  margin: 3rem auto 0;
}

.pricing-card {
  background-color: var(--bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 2rem;
  position: relative;
}

.pricing-card.popular {
  border-color: var(--color-green-dark);
  box-shadow: 0 0 0 1px var(--color-green-dark);
}

.popular-label {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-green-dark);
  color: white;
  font-size: var(--font-size-xs);
  font-weight: 600;
  padding: 0.2rem 0.75rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.pricing-name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  margin-bottom: 0.5rem;
}

.pricing-price {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  color: var(--color-heading);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.25rem;
}

.pricing-price span {
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--color-muted);
}

.pricing-desc {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  margin-bottom: 1.5rem;
}

.pricing-features {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  margin-bottom: 1.75rem;
}

.pricing-feature {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: var(--font-size-sm);
  color: var(--color-body);
}

.pricing-feature svg {
  width: 16px;
  height: 16px;
  color: var(--color-success);
  flex-shrink: 0;
  margin-top: 2px;
}

/* Footer */
.footer {
  background-color: var(--color-heading);
  color: #94A3B8;
  padding: 3rem 2rem 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand p {
  font-size: var(--font-size-sm);
  line-height: 1.7;
  margin-top: 0.75rem;
  color: #64748B;
}

.footer-col-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: #F1F5F9;
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a {
  font-size: var(--font-size-sm);
  color: #64748B;
  transition: color var(--transition);
}

.footer-links a:hover { color: #94A3B8; }

.footer-bottom {
  max-width: 1200px;
  margin: 1.25rem auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--font-size-xs);
  color: #475569;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Responsive */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .nav-links, .nav-actions .btn { display: none; }
  .nav-mobile-toggle { display: flex; }
  .nav-mobile-menu.open { display: flex; }

  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 49;
  }

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

  .hero { padding: 4rem 1.25rem 3rem; }
  .features-section { padding: 3rem 1.25rem; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }

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

  .app-content { padding: 1rem; }

  .search-bar input, .search-bar input:focus { width: 100%; }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; max-width: 280px; }

  .table { min-width: 600px; }
}

/* Keyboard focus ring for accessibility */
:focus-visible {
  outline: 2px solid var(--color-green-dark);
  outline-offset: 2px;
}

/* Custom scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover { background: var(--color-muted); }