/* ============================================
   TON WHALE TRACKER BRANDBOOK STYLES
   ============================================ */

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

/* ============================================
   LAYOUT
   ============================================ */

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    background: var(--color-backdrop);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    height: 64px;
}

.header-content {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--space-6);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    color: var(--color-text-primary);
    font-weight: var(--font-bold);
    font-size: var(--text-lg);
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--color-brand-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-extrabold);
    color: white;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* Theme Toggle */
.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--duration-normal) var(--ease-in-out);
}

.theme-toggle:hover {
    border-color: var(--color-brand-primary);
    color: var(--color-brand-primary);
}

.theme-icon-light { display: none; }
.theme-icon-dark { display: block; }

.theme-light .theme-icon-light { display: block; }
.theme-light .theme-icon-dark { display: none; }

/* Language Toggle */
.lang-toggle {
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    font-weight: var(--font-semibold);
    font-size: var(--text-sm);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-in-out);
}

.lang-toggle:hover {
    border-color: var(--color-brand-primary);
    color: var(--color-brand-primary);
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 64px;
    left: 0;
    width: 260px;
    height: calc(100vh - 64px);
    background: var(--color-bg-secondary);
    border-right: 1px solid var(--color-border);
    overflow-y: auto;
    padding: var(--space-6) 0;
    z-index: var(--z-sticky);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    padding: 0 var(--space-3);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--color-text-secondary);
    font-weight: var(--font-medium);
    font-size: var(--text-sm);
    transition: all var(--duration-normal) var(--ease-in-out);
}

.nav-link:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

.nav-link.active {
    background: rgba(var(--color-brand-primary-rgb), 0.1);
    color: var(--color-brand-primary);
}

.nav-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* Main Content */
.main-content {
    margin-left: 260px;
    margin-top: 64px;
    min-height: calc(100vh - 64px);
    padding: var(--space-12) var(--space-8);
    max-width: calc(100% - 260px);
}

/* Hero Section */
.hero-section {
    text-align: center;
    padding: var(--space-16) 0;
    margin-bottom: var(--space-16);
    border-bottom: 1px solid var(--color-border);
}

.hero-title {
    font-size: var(--text-6xl);
    font-weight: var(--font-extrabold);
    margin-bottom: var(--space-4);
    line-height: var(--leading-tight);
}

.hero-subtitle {
    font-size: var(--text-2xl);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.hero-description {
    font-size: var(--text-lg);
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* Sections */
.section {
    margin-bottom: var(--space-20);
    scroll-margin-top: 100px;
}

.section-title {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-4);
}

.section-description {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-8);
    max-width: 700px;
}

.subsection {
    margin-bottom: var(--space-10);
}

.subsection-title {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-6);
    color: var(--color-text-secondary);
}

/* ============================================
   COLORS
   ============================================ */

.color-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-4);
}

.color-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-in-out);
}

.color-card:hover {
    border-color: var(--color-brand-primary);
    transform: translateY(-2px);
}

.color-card-wide {
    grid-column: 1 / -1;
}

.color-swatch {
    height: 80px;
    position: relative;
}

.color-swatch.dark-check::after {
    content: '';
    position: absolute;
    right: 8px;
    bottom: 8px;
    width: 20px;
    height: 20px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
}

.color-info {
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.color-name {
    font-weight: var(--font-semibold);
    font-size: var(--text-sm);
}

.color-value {
    font-family: var(--font-family-mono);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.color-var {
    font-family: var(--font-family-mono);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

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

.type-specimen {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.type-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
}

.type-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-3);
}

.type-sample {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-3);
}

.type-code {
    font-family: var(--font-family-mono);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

.type-scale {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.type-row {
    display: grid;
    grid-template-columns: 120px 1fr 150px;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
}

.type-size-label {
    font-family: var(--font-family-mono);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.weight-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--space-4);
}

.weight-item {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    text-align: center;
}

.weight-sample {
    display: block;
    font-size: var(--text-xl);
    margin-bottom: var(--space-2);
}

.weight-item code {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2-5) var(--space-6);
    border-radius: var(--radius-md);
    font-family: var(--font-family-primary);
    font-weight: var(--font-semibold);
    font-size: var(--text-sm);
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-in-out);
    white-space: nowrap;
}

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

.btn-primary {
    background: var(--color-brand-gradient);
    color: white;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-primary);
}

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

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

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

.btn-ghost:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

.btn-destructive {
    background: var(--color-error);
    color: white;
}

.btn-destructive:hover {
    background: var(--color-error-dark);
    transform: translateY(-2px);
}

/* Button Sizes */
.btn-sm {
    padding: var(--space-1-5) var(--space-4);
    font-size: var(--text-xs);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
}

/* Button with Icon */
.btn-icon {
    gap: var(--space-2);
}

.btn-icon svg {
    flex-shrink: 0;
}

/* Icon Only Button */
.btn-icon-only {
    width: 40px;
    height: 40px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-in-out);
}

.btn-icon-only:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

/* Button States */
.btn:disabled,
.btn[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.btn.state-hover {
    transform: translateY(-2px);
}

.btn-primary.state-hover {
    opacity: 0.9;
    box-shadow: var(--shadow-glow-primary);
}

.btn.state-focus {
    outline: 2px solid var(--color-brand-primary);
    outline-offset: 2px;
}

.btn.state-loading {
    pointer-events: none;
    position: relative;
}

.btn.state-loading::after {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin-left: var(--space-2);
}

/* State Selector */
.state-selector {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
    flex-wrap: wrap;
}

.state-btn {
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: transparent;
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    cursor: pointer;
    transition: all var(--duration-fast);
}

.state-btn:hover {
    border-color: var(--color-brand-primary);
}

.state-btn.active {
    background: var(--color-brand-primary);
    border-color: var(--color-brand-primary);
    color: white;
}

/* Component Preview */
.component-preview {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.preview-area {
    padding: var(--space-8);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-4);
}

.code-block {
    background: var(--color-bg-tertiary);
    border-top: 1px solid var(--color-border);
    padding: var(--space-4);
    position: relative;
}

.code-block pre {
    margin: 0;
    overflow-x: auto;
}

.code-block code {
    font-family: var(--font-family-mono);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: var(--leading-relaxed);
}

.copy-btn {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
    color: var(--color-text-secondary);
    font-size: var(--text-xs);
    cursor: pointer;
    transition: all var(--duration-fast);
}

.copy-btn:hover {
    border-color: var(--color-brand-primary);
    color: var(--color-brand-primary);
}

.copy-btn.copied {
    background: var(--color-success);
    border-color: var(--color-success);
    color: white;
}

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

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-6);
}

.card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    transition: all var(--duration-normal) var(--ease-in-out);
    position: relative;
}

.card-header {
    margin-bottom: var(--space-4);
}

.card-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
}

.card-content p {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
}

.card-featured {
    border-color: var(--color-brand-primary);
    box-shadow: var(--shadow-glow-primary);
}

.card-badge {
    position: absolute;
    top: calc(-1 * var(--space-3));
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-brand-gradient);
    padding: var(--space-1) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    color: white;
}

.card-interactive:hover {
    transform: translateY(-4px);
    border-color: var(--color-brand-primary);
}

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

.stat-value {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-2);
}

.stat-label {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    margin-bottom: var(--space-2);
}

.stat-change {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
}

.card-pnl {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

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

.pnl-label {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

.pnl-value {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
}

.pnl-percent {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
}

/* ============================================
   FORMS
   ============================================ */

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-6);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-label {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-primary);
}

.form-input,
.form-select {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-input-bg);
    color: var(--color-text-primary);
    font-family: var(--font-family-primary);
    font-size: var(--text-base);
    transition: all var(--duration-fast);
}

.form-input:hover,
.form-select:hover {
    background: var(--color-input-bg-hover);
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-brand-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-brand-primary-rgb), 0.2);
}

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

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

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

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

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

/* Select */
.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238b8b9a' stroke-width='2' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

/* Checkbox */
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    cursor: pointer;
}

.form-checkbox {
    width: 18px;
    height: 18px;
    border-radius: var(--radius-sm);
    border: 2px solid var(--color-border);
    background: var(--color-input-bg);
    cursor: pointer;
    appearance: none;
    transition: all var(--duration-fast);
}

.form-checkbox:checked {
    background: var(--color-brand-primary);
    border-color: var(--color-brand-primary);
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
}

.checkbox-text {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* Toggle Switch */
.toggle-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    cursor: pointer;
}

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

.toggle-switch {
    width: 44px;
    height: 24px;
    background: var(--color-border);
    border-radius: var(--radius-full);
    position: relative;
    transition: all var(--duration-normal);
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    transition: all var(--duration-normal);
}

.toggle-input:checked + .toggle-switch {
    background: var(--color-brand-primary);
}

.toggle-input:checked + .toggle-switch::after {
    transform: translateX(20px);
}

.toggle-text {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

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

.badges-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    align-items: center;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
}

.badge-sm {
    padding: 2px var(--space-2);
    font-size: 10px;
}

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

.badge-success {
    background: var(--color-success-bg);
    color: var(--color-success);
}

.badge-warning {
    background: var(--color-warning-bg);
    color: var(--color-warning);
}

.badge-error {
    background: var(--color-error-bg);
    color: var(--color-error);
}

.badge-info {
    background: var(--color-info-bg);
    color: var(--color-info);
}

.badge-tier-mega {
    background: var(--color-tier-mega-bg);
    color: var(--color-tier-mega);
}

.badge-tier-large {
    background: var(--color-tier-large-bg);
    color: var(--color-tier-large);
}

.badge-tier-medium {
    background: var(--color-tier-medium-bg);
    color: var(--color-tier-medium);
}

.badge-icon::before {
    font-size: 12px;
}

.badge-tier-mega.badge-icon::before { content: '🔥'; }
.badge-tier-large.badge-icon::before { content: '🐋'; }
.badge-tier-medium.badge-icon::before { content: '💰'; }

.badge-outline {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
}

.badge-outline-primary {
    background: transparent;
    border: 1px solid var(--color-brand-primary);
    color: var(--color-brand-primary);
}

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

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

.table-container {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

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

.table th,
.table td {
    padding: var(--space-4);
    text-align: left;
}

.table th {
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    background: var(--color-bg-tertiary);
    border-bottom: 1px solid var(--color-border);
}

.table td {
    border-bottom: 1px solid var(--color-border);
}

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

.table tr:hover td {
    background: var(--color-bg-tertiary);
}

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

.address {
    font-family: var(--font-family-mono);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* ============================================
   NAVIGATION
   ============================================ */

.tabs-demo {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
}

.tabs {
    display: flex;
    gap: var(--space-1);
    background: var(--color-bg-tertiary);
    padding: var(--space-1);
    border-radius: var(--radius-md);
}

.tab {
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-sm);
    border: none;
    background: transparent;
    color: var(--color-text-secondary);
    font-weight: var(--font-medium);
    font-size: var(--text-sm);
    cursor: pointer;
    transition: all var(--duration-fast);
}

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

.tab.active {
    background: var(--color-bg-secondary);
    color: var(--color-brand-primary);
    box-shadow: var(--shadow-sm);
}

/* Breadcrumbs */
.breadcrumbs {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
}

.breadcrumb-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--duration-fast);
}

.breadcrumb-link:hover {
    color: var(--color-brand-primary);
}

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

.breadcrumb-current {
    color: var(--color-text-primary);
    font-weight: var(--font-medium);
}

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.page-btn {
    min-width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 var(--space-2);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: transparent;
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    cursor: pointer;
    transition: all var(--duration-fast);
}

.page-btn:hover:not(:disabled) {
    border-color: var(--color-brand-primary);
    color: var(--color-brand-primary);
}

.page-btn.active {
    background: var(--color-brand-primary);
    border-color: var(--color-brand-primary);
    color: white;
}

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

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

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

.loading-row {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-brand-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner-sm {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

.spinner-lg {
    width: 40px;
    height: 40px;
    border-width: 4px;
}

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

/* Skeleton */
.skeleton-demo {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    max-width: 400px;
}

.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-bg-tertiary) 0%,
        var(--color-bg-elevated) 50%,
        var(--color-bg-tertiary) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

.skeleton-text {
    height: 16px;
    width: 100%;
}

.skeleton-short {
    width: 60%;
}

.skeleton-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    flex-shrink: 0;
}

.skeleton-row {
    display: flex;
    gap: var(--space-4);
    align-items: center;
}

.skeleton-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

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

/* Progress Bar */
.progress-bar {
    height: 8px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--color-brand-gradient);
    border-radius: var(--radius-full);
    transition: width var(--duration-slow);
}

/* ============================================
   ALERTS
   ============================================ */

.alerts-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    border: 1px solid;
}

.alert-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.alert-content {
    flex: 1;
    font-size: var(--text-sm);
}

.alert-content strong {
    font-weight: var(--font-semibold);
}

.alert-info {
    background: var(--color-info-bg);
    border-color: var(--color-info);
    color: var(--color-info);
}

.alert-success {
    background: var(--color-success-bg);
    border-color: var(--color-success);
    color: var(--color-success);
}

.alert-warning {
    background: var(--color-warning-bg);
    border-color: var(--color-warning);
    color: var(--color-warning);
}

.alert-error {
    background: var(--color-error-bg);
    border-color: var(--color-error);
    color: var(--color-error);
}

/* ============================================
   SPACING
   ============================================ */

.spacing-scale {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-6);
}

.spacing-item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
}

.spacing-box {
    background: var(--color-brand-primary);
    border-radius: 2px;
}

.spacing-label {
    font-family: var(--font-family-mono);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    min-width: 80px;
}

.spacing-item code {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

/* ============================================
   SHADOWS
   ============================================ */

.shadow-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-6);
}

.shadow-card {
    height: 100px;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
}

.shadow-label {
    font-weight: var(--font-semibold);
    font-size: var(--text-lg);
}

.shadow-card code {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

/* ============================================
   ANIMATION
   ============================================ */

.duration-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-4);
}

.duration-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    padding: var(--space-4);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
}

.duration-demo {
    padding: var(--space-2) var(--space-4);
    background: var(--color-brand-primary);
    color: white;
    font-weight: var(--font-semibold);
    border-radius: var(--radius-sm);
    text-align: center;
    animation: pulse 2s infinite;
}

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

.duration-item code {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

.easing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.easing-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    align-items: center;
}

.easing-demo {
    width: 100%;
    height: 4px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-full);
    position: relative;
}

.easing-demo::after {
    content: '';
    position: absolute;
    left: 0;
    top: -6px;
    width: 16px;
    height: 16px;
    background: var(--color-brand-primary);
    border-radius: 50%;
    animation: slide 2s infinite;
}

@keyframes slide {
    0%, 100% { left: 0; }
    50% { left: calc(100% - 16px); }
}

.easing-item span {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    margin-top: var(--space-20);
    padding: var(--space-8) 0;
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}

.footer a {
    color: var(--color-brand-primary);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

/* ============================================
   TOAST
   ============================================ */

.toast-container {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    z-index: var(--z-toast);
}

.toast {
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    font-size: var(--text-sm);
    animation: slideIn 0.3s var(--ease-out);
}

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

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

.text-gradient {
    background: var(--color-brand-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

@media (max-width: 1024px) {
    .sidebar {
        width: 220px;
    }

    .main-content {
        margin-left: 220px;
        max-width: calc(100% - 220px);
    }

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

@media (max-width: 768px) {
    .sidebar {
        display: none;
    }

    .main-content {
        margin-left: 0;
        max-width: 100%;
        padding: var(--space-6) var(--space-4);
    }

    .hero-title {
        font-size: var(--text-4xl);
    }

    .hero-subtitle {
        font-size: var(--text-xl);
    }

    .section-title {
        font-size: var(--text-3xl);
    }

    .type-row {
        grid-template-columns: 1fr;
        gap: var(--space-2);
    }

    .footer {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
}