/* ============================================================
   MAIN STYLES — Tailwind layers, keyframes, base, utilities
   ============================================================ */

@import "tailwindcss/base";
@import "tailwindcss/components";
@import "tailwindcss/utilities";

/* ============================================================
   BASE STYLES
   ============================================================ */
html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-en);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color var(--transition-slow), color var(--transition-slow);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

[lang="ar"] {
    font-family: var(--font-ar);
    direction: rtl;
}

::selection {
    background: var(--primary-light);
    color: var(--primary);
}

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

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

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* ============================================================
   UTILITY / LAYOUT
   ============================================================ */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.section-title {
    font-size: 2rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-6);
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-8);
    font-weight: 400;
    max-width: 640px;
}

.section-spacing {
    padding: var(--space-11) 0;
    border-bottom: 1px solid var(--border-light);
}
.section-spacing:last-of-type {
    border-bottom: none;
}

.anchor-offset {
    scroll-margin-top: calc(var(--navbar-height) + var(--space-4));
}

/* ============================================================
   LANG TOGGLE
   ============================================================ */
.lang-toggle {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    background: var(--bg-secondary);
    border-radius: 100px;
    padding: 2px;
    border: 1px solid var(--border-light);
}
.lang-toggle button {
    background: transparent;
    border: none;
    padding: var(--space-1) var(--space-3);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-en);
}
.lang-toggle button.active {
    background: var(--primary);
    color: #fff;
}
.lang-toggle button:hover:not(.active) {
    color: var(--text-primary);
}

/* ============================================================
   DOWNLOAD BUTTONS
   ============================================================ */
.btn-download {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-5);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-en);
    background: var(--primary);
    color: #fff;
}
.btn-download:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-2);
}
.btn-download.secondary {
    background: var(--bg-surface);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}
.btn-download.secondary:hover {
    background: var(--bg-secondary);
}
.btn-download svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--navbar-height);
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-light);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 1000;
    display: flex;
    align-items: center;
    padding: 0 var(--space-6);
    transition: background var(--transition-slow), border-color var(--transition-slow);
    box-shadow: var(--shadow-1);
}
.navbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
}
.navbar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    flex-shrink: 0;
}
.navbar-brand .brand-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--primary);
    display: inline-block;
}
.navbar-brand .brand-text {
    color: var(--text-primary);
}
.navbar-brand .brand-text span {
    color: var(--primary);
}
.navbar-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-1);
}
.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}
.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}
.hamburger.active span:nth-child(2) {
    opacity: 0;
}
.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}

/* Theme toggle */
.theme-toggle {
    background: var(--bg-secondary);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    position: relative;
}
.theme-toggle:hover {
    background: var(--border-color);
    color: var(--text-primary);
}
.theme-toggle:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}
.theme-toggle svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    position: absolute;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}
.theme-toggle .icon-sun {
    opacity: 0;
    transform: scale(0.5);
}
.theme-toggle .icon-moon {
    opacity: 1;
    transform: scale(1);
}
[data-theme="dark"] .theme-toggle .icon-sun {
    opacity: 1;
    transform: scale(1);
}
[data-theme="dark"] .theme-toggle .icon-moon {
    opacity: 0;
    transform: scale(0.5);
}

/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar {
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-light);
    overflow-y: auto;
    overflow-x: hidden;
    padding: var(--space-4) 0;
    transition: width var(--transition-base), background var(--transition-slow), border-color var(--transition-slow);
    z-index: 900;
}
.sidebar.collapsed {
    width: var(--sidebar-collapsed);
}
.sidebar-nav {
    list-style: none;
    padding: 0 var(--space-3);
}
.sidebar-nav li {
    margin-bottom: var(--space-1);
}
.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.sidebar-nav a:hover {
    background: var(--bg-surface);
    color: var(--text-primary);
}
.sidebar-nav a.active {
    background: var(--primary-light);
    color: var(--primary);
}
.sidebar-nav .nav-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}
.sidebar-nav .nav-icon svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.sidebar.collapsed .sidebar-nav a span:not(.nav-icon) {
    display: none;
}
.sidebar.collapsed .sidebar-nav a {
    justify-content: center;
    padding: var(--space-2);
}

.sidebar-toggle {
    position: fixed;
    bottom: var(--space-6);
    left: calc(var(--sidebar-width) + var(--space-3));
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all var(--transition-base);
    z-index: 901;
    box-shadow: var(--shadow-2);
}
.sidebar-toggle:hover {
    background: var(--border-color);
    color: var(--text-primary);
}
.sidebar.collapsed ~ .sidebar-toggle {
    left: calc(var(--sidebar-collapsed) + var(--space-3));
}
.sidebar-toggle .chevron {
    transition: transform var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}
.sidebar-toggle .chevron svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.sidebar.collapsed ~ .sidebar-toggle .chevron {
    transform: rotate(180deg);
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */
.main-content {
    margin-left: var(--sidebar-width);
    margin-top: var(--navbar-height);
    padding: var(--space-8) var(--space-6);
    transition: margin-left var(--transition-base);
    min-height: calc(100vh - var(--navbar-height));
}
.main-content.expanded {
    margin-left: var(--sidebar-collapsed);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
    padding: var(--space-13) 0 var(--space-11);
    text-align: center;
    position: relative;
}
.hero-badge {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 600;
    padding: var(--space-1) var(--space-3);
    border-radius: 100px;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    margin-bottom: var(--space-4);
}
.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}
.hero h1 .highlight {
    color: var(--primary);
}
.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto var(--space-6);
    font-weight: 400;
}
.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-7);
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-en);
}
.hero-cta:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-3);
}
.hero-cta:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}
.hero-visual {
    margin-top: var(--space-9);
    display: flex;
    justify-content: center;
    gap: var(--space-6);
    flex-wrap: wrap;
}
.hero-visual .pill {
    padding: var(--space-2) var(--space-5);
    border-radius: 100px;
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    font-size: 0.875rem;
    color: var(--text-secondary);
    box-shadow: var(--shadow-1);
    transition: all var(--transition-fast);
}
.hero-visual .pill:hover {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: var(--shadow-2);
}

/* ============================================================
   PHILOSOPHY
   ============================================================ */
.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-6);
    margin-top: var(--space-6);
}
.philosophy-card {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    border: 1px solid var(--border-light);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-1);
}
.philosophy-card:hover {
    box-shadow: var(--shadow-3);
    transform: translateY(-2px);
}
.philosophy-card .icon {
    font-size: 1.75rem;
    margin-bottom: var(--space-3);
    display: block;
    color: var(--primary);
}
.philosophy-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-2);
    color: var(--text-primary);
}
.philosophy-card p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================================
   DESIGN TOKENS
   ============================================================ */
.token-section-heading {
    font-size: 1.125rem;
    font-weight: 600;
    margin-top: var(--space-8);
    margin-bottom: var(--space-3);
}

.tokens-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--space-4);
    margin-top: var(--space-4);
}
.token-swatch {
    background: var(--bg-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    padding: var(--space-3);
    text-align: center;
    transition: all var(--transition-fast);
}
.token-swatch:hover {
    box-shadow: var(--shadow-2);
}
.token-swatch .color-box {
    width: 100%;
    height: 56px;
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-2);
    border: 1px solid var(--border-light);
}
.token-swatch .token-name {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
}
.token-swatch .token-value {
    font-size: 0.6875rem;
    color: var(--text-muted);
    font-family: monospace;
}

.type-scale-grid {
    display: grid;
    gap: var(--space-3);
    margin-top: var(--space-4);
}
.type-demo {
    background: var(--bg-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    padding: var(--space-4);
}
.type-demo .label {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: var(--space-1);
}
.type-demo .sample {
    color: var(--text-primary);
}

.spacing-demo {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    align-items: center;
    margin-top: var(--space-2);
}
.spacing-label {
    font-size: 0.6875rem;
    color: var(--text-muted);
    font-weight: 500;
}
.spacing-bar {
    height: 20px;
    background: var(--primary-light);
    border-radius: 2px;
}

.shadow-demo {
    display: flex;
    gap: var(--space-6);
    flex-wrap: wrap;
    margin-top: var(--space-4);
}
.shadow-box {
    width: 80px;
    height: 80px;
    background: var(--bg-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.625rem;
    color: var(--text-muted);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.radius-demo {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
    margin-top: var(--space-4);
}
.radius-box {
    width: 60px;
    height: 60px;
    background: var(--primary-light);
    border: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.625rem;
    color: var(--primary);
    font-weight: 500;
}

/* ============================================================
   COMPONENTS LIBRARY
   ============================================================ */
.component-section {
    margin-bottom: var(--space-9);
}
.component-section:last-child {
    margin-bottom: 0;
}
.component-section-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.component-demo {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    padding: var(--space-6);
    margin-top: var(--space-4);
    box-shadow: var(--shadow-1);
}
.component-demo.table-demo {
    padding: 0;
    overflow: hidden;
}
.component-demo .demo-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    align-items: center;
}
.component-demo .demo-row + .demo-row {
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--border-light);
}
.component-demo .badge-row {
    gap: var(--space-2);
}
.component-demo .textarea-row {
    flex-direction: column;
    align-items: stretch;
}
.component-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: var(--space-2);
    display: block;
}

.component-doc {
    margin-top: var(--space-4);
    padding: var(--space-4);
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    font-size: 0.875rem;
}
.component-doc h4 {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    font-size: 0.9375rem;
}
.component-doc .doc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--space-2);
    margin-top: var(--space-2);
}
.component-doc .doc-item {
    padding: var(--space-2) var(--space-3);
    background: var(--bg-surface);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
    font-size: 0.75rem;
    color: var(--text-secondary);
}
.component-doc .doc-item strong {
    color: var(--text-primary);
    font-weight: 600;
}
.component-doc .doc-token {
    display: inline-block;
    padding: 0 var(--space-2);
    border-radius: var(--radius-sm);
    background: var(--primary-light);
    color: var(--primary);
    font-size: 0.6875rem;
    font-weight: 500;
    font-family: monospace;
}
.doc-usage {
    margin-top: var(--space-2);
    font-size: 0.8125rem;
    color: var(--text-secondary);
}
.doc-usage code {
    background: var(--bg-primary);
    padding: 0 var(--space-1);
    border-radius: var(--radius-sm);
    font-family: monospace;
    font-size: 0.75rem;
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-family: var(--font-en);
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    font-size: 0.875rem;
    line-height: 1;
    white-space: nowrap;
    position: relative;
}
.btn:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}
.btn-sm {
    height: 32px;
    padding: 0 var(--space-3);
    font-size: 0.8125rem;
}
.btn-md {
    height: 40px;
    padding: 0 var(--space-4);
    font-size: 0.875rem;
}
.btn-lg {
    height: 48px;
    padding: 0 var(--space-5);
    font-size: 1rem;
}
.btn-primary {
    background: var(--primary);
    color: #fff;
}
.btn-primary:hover {
    background: var(--primary-hover);
    box-shadow: var(--shadow-2);
}
.btn-primary:active {
    background: var(--primary-active);
    transform: scale(0.97);
}
.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}
.btn-secondary {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
}
.btn-secondary:hover {
    background: var(--primary-light);
    border-color: var(--primary-hover);
}
.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}
.btn-ghost:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}
.btn-danger {
    background: var(--error);
    color: #fff;
}
.btn-danger:hover {
    background: #A87272;
    box-shadow: var(--shadow-2);
}
.btn-loading .spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    display: inline-block;
}

/* ---- Badges ---- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0 var(--space-2);
    border-radius: var(--radius-sm);
    font-size: 0.6875rem;
    font-weight: 500;
    line-height: 1;
    white-space: nowrap;
    height: 20px;
}
.badge-sm {
    height: 16px;
    font-size: 0.5625rem;
    padding: 0 var(--space-1);
}
.badge-lg {
    height: 24px;
    font-size: 0.75rem;
    padding: 0 var(--space-3);
}
.badge-slate {
    background: #E8EDF0;
    color: #5A6A78;
}
.badge-teal {
    background: #E5F0ED;
    color: #4A8A85;
}
.badge-rose {
    background: #F0E5E5;
    color: #8A6A6A;
}
.badge-amber {
    background: #F0EDE5;
    color: #8A7A5A;
}
.badge-mint {
    background: #E5F0EA;
    color: #4A8A6A;
}
.badge-lavender {
    background: #EDE5F0;
    color: #6A5A8A;
}
.badge-sage {
    background: #E5EDE8;
    color: #5A7A6A;
}
.badge-coral {
    background: #F0E8E5;
    color: #8A6A5A;
}
.badge-sky {
    background: #E5EDF0;
    color: #5A7A8A;
}
.badge-plum {
    background: #EDE8F0;
    color: #7A5A8A;
}
[data-theme="dark"] .badge-slate {
    background: #2A3A44;
    color: #8A9BA8;
}
[data-theme="dark"] .badge-teal {
    background: #2A4440;
    color: #7AA8A3;
}
[data-theme="dark"] .badge-rose {
    background: #442A2A;
    color: #C49A9A;
}
[data-theme="dark"] .badge-amber {
    background: #443A2A;
    color: #C4A87A;
}
[data-theme="dark"] .badge-mint {
    background: #2A4434;
    color: #8AB89A;
}
[data-theme="dark"] .badge-lavender {
    background: #3A2A44;
    color: #A89AC4;
}
[data-theme="dark"] .badge-sage {
    background: #2A3A2A;
    color: #9AAC8A;
}
[data-theme="dark"] .badge-coral {
    background: #442A2A;
    color: #C48A8A;
}
[data-theme="dark"] .badge-sky {
    background: #2A3A44;
    color: #8AACB8;
}
[data-theme="dark"] .badge-plum {
    background: #3A2A44;
    color: #A88AB8;
}

/* ---- Inputs ---- */
.input-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    min-width: 200px;
}
.input-group label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
}
.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}
.input-wrapper .input-icon {
    position: absolute;
    left: var(--space-3);
    color: var(--text-muted);
    pointer-events: none;
    display: flex;
    align-items: center;
    justify-content: center;
}
.input-wrapper .input-icon svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.input-field {
    width: 100%;
    height: 40px;
    padding: 0 var(--space-4);
    font-family: var(--font-en);
    font-size: 0.875rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: all var(--transition-fast);
    outline: none;
}
.input-field:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}
.input-field:hover:not(:focus) {
    border-color: var(--text-muted);
}
.input-field:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}
.input-field.error {
    border-color: var(--error);
}
.input-field.error:focus {
    box-shadow: 0 0 0 3px rgba(184, 131, 131, 0.2);
}
.input-field.has-icon {
    padding-left: var(--space-8);
}
.input-helper {
    font-size: 0.75rem;
    color: var(--text-muted);
}
.input-helper.error {
    color: var(--error);
}
textarea.input-field {
    height: auto;
    min-height: 80px;
    padding: var(--space-3);
    resize: vertical;
    font-family: var(--font-en);
}
.input-float {
    position: relative;
}
.input-float .input-field {
    padding-top: var(--space-5);
    padding-bottom: var(--space-1);
}
.input-float .float-label {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.875rem;
    color: var(--text-muted);
    pointer-events: none;
    transition: all var(--transition-fast);
    background: transparent;
    padding: 0 var(--space-1);
}
.input-float .input-field:focus ~ .float-label,
.input-float .input-field:not(:placeholder-shown) ~ .float-label {
    top: 6px;
    transform: translateY(0);
    font-size: 0.6875rem;
    color: var(--primary);
    background: var(--bg-primary);
}
.input-float .input-field:focus ~ .float-label {
    color: var(--primary);
}
.input-float .input-field.error ~ .float-label {
    color: var(--error);
}

/* ---- Dropdown ---- */
.dropdown-container {
    position: relative;
    min-width: 200px;
}
.dropdown-trigger {
    width: 100%;
    height: 40px;
    padding: 0 var(--space-4);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-en);
    font-size: 0.875rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all var(--transition-fast);
    gap: var(--space-2);
}
.dropdown-trigger:hover {
    border-color: var(--text-muted);
}
.dropdown-trigger:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}
.dropdown-trigger.open {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}
.dropdown-trigger .chevron {
    transition: transform var(--transition-fast);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
}
.dropdown-trigger .chevron svg {
    width: 14px;
    height: 14px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.dropdown-trigger.open .chevron {
    transform: rotate(180deg);
}
.dropdown-panel {
    position: absolute;
    top: calc(100% + var(--space-1));
    left: 0;
    right: 0;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-4);
    padding: var(--space-2);
    max-height: 200px;
    overflow-y: auto;
    z-index: 100;
    display: none;
    animation: dropdownIn var(--transition-fast) ease;
}
.dropdown-panel.open {
    display: block;
}
@keyframes dropdownIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}
.dropdown-option {
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}
.dropdown-option:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}
.dropdown-option.selected {
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 500;
}
.dropdown-option .check {
    margin-left: auto;
    color: var(--primary);
    opacity: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}
.dropdown-option .check svg {
    width: 14px;
    height: 14px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.dropdown-option.selected .check {
    opacity: 1;
}
.dropdown-search {
    padding: var(--space-2);
    border-bottom: 1px solid var(--border-light);
    margin-bottom: var(--space-2);
}
.dropdown-search input {
    width: 100%;
    height: 32px;
    padding: 0 var(--space-3);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    background: var(--bg-primary);
    color: var(--text-primary);
    outline: none;
    font-family: var(--font-en);
}
.dropdown-search input:focus {
    border-color: var(--primary);
}

/* ---- Switch ---- */
.switch-group {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}
.switch-group label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
}
.switch {
    position: relative;
    width: 48px;
    height: 24px;
    flex-shrink: 0;
    cursor: pointer;
}
.switch input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}
.switch .slider {
    position: absolute;
    inset: 0;
    background: #C8C8C8;
    border-radius: 12px;
    transition: all var(--transition-base);
    cursor: pointer;
}
.switch .slider::before {
    content: '';
    position: absolute;
    height: 20px;
    width: 20px;
    left: 2px;
    bottom: 2px;
    background: #fff;
    border-radius: 50%;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-1);
}
.switch input:checked + .slider {
    background: var(--primary);
}
.switch input:checked + .slider::before {
    transform: translateX(24px);
}
.switch input:focus-visible + .slider {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}
.switch input:disabled + .slider {
    opacity: 0.5;
    cursor: not-allowed;
}
[data-theme="dark"] .switch .slider {
    background: #555;
}
[data-theme="dark"] .switch .slider::before {
    background: #ddd;
}

/* ---- Modal ---- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    animation: fadeIn var(--transition-fast) ease;
}
.modal-overlay.open {
    display: flex;
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
.modal {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    padding: var(--space-6);
    box-shadow: var(--shadow-5);
    animation: modalIn var(--transition-fast) ease;
    border: 1px solid var(--border-light);
}
@keyframes modalIn {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}
.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4);
}
.modal-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}
.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--space-1);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}
.modal-close svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.modal-close:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}
.modal-body {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-4);
}
.modal-body kbd {
    background: var(--bg-secondary);
    padding: 0 var(--space-2);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    border: 1px solid var(--border-color);
}
.modal-footer {
    display: flex;
    gap: var(--space-3);
    justify-content: flex-end;
    padding-top: var(--space-4);
    border-top: 1px solid var(--border-light);
}

/* ---- Toast ---- */
.toast-container {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    max-width: 360px;
    width: 100%;
}
.toast {
    background: var(--bg-surface);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    box-shadow: var(--shadow-4);
    border: 1px solid var(--border-light);
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    animation: toastIn var(--transition-base) ease;
    transition: all var(--transition-base);
}
.toast.removing {
    opacity: 0;
    transform: translateX(40px);
}
@keyframes toastIn {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}
.toast .toast-icon {
    flex-shrink: 0;
    margin-top: 1px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.toast .toast-icon svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.toast .toast-content {
    flex: 1;
}
.toast .toast-title {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
}
.toast .toast-message {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}
.toast .toast-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--space-1);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}
.toast .toast-close svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.toast .toast-close:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}
.toast-success .toast-icon { color: var(--success); }
.toast-error .toast-icon { color: var(--error); }
.toast-warning .toast-icon { color: var(--warning); }
.toast-info .toast-icon { color: var(--info); }

/* ---- KPI ---- */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--space-4);
    margin-top: var(--space-4);
}
.kpi-card {
    background: var(--bg-surface);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    border: 1px solid var(--border-light);
    text-align: center;
    transition: all var(--transition-fast);
}
.kpi-card:hover {
    box-shadow: var(--shadow-2);
}
.kpi-card .kpi-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    line-height: 1.2;
}
.kpi-card .kpi-label {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-top: var(--space-1);
}
.kpi-card .kpi-trend {
    font-size: 0.75rem;
    font-weight: 500;
    margin-top: var(--space-1);
    display: inline-block;
    padding: 0 var(--space-2);
    border-radius: var(--radius-sm);
}
.kpi-card .kpi-trend.up {
    color: var(--success);
    background: #E5F0EA;
}
.kpi-card .kpi-trend.down {
    color: var(--error);
    background: #F0E5E5;
}

/* ---- Table ---- */
.table-wrap {
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    background: var(--bg-surface);
}
.table-wrap table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}
.table-wrap th {
    text-align: left;
    padding: var(--space-3) var(--space-4);
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    border-bottom: 1px solid var(--border-color);
}
.table-wrap td {
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--border-light);
    color: var(--text-primary);
}
.table-wrap tr:last-child td {
    border-bottom: none;
}
.table-wrap tbody tr:hover {
    background: var(--bg-primary);
}
.table-wrap .status-badge {
    display: inline-block;
    padding: 0 var(--space-2);
    border-radius: var(--radius-sm);
    font-size: 0.6875rem;
    font-weight: 500;
}
.table-wrap .status-badge.active {
    background: #E5F0EA;
    color: #4A8A6A;
}
.table-wrap .status-badge.pending {
    background: #F0EDE5;
    color: #8A7A5A;
}
.table-wrap .status-badge.inactive {
    background: #F0E5E5;
    color: #8A6A6A;
}

/* ---- Pagination ---- */
.pagination {
    display: flex;
    gap: var(--space-1);
    align-items: center;
    flex-wrap: wrap;
}
.pagination button {
    min-width: 36px;
    height: 36px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-surface);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.8125rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    font-family: var(--font-en);
    display: flex;
    align-items: center;
    justify-content: center;
}
.pagination button:hover {
    border-color: var(--primary);
    color: var(--primary);
}
.pagination button.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.pagination button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}
.pagination button svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* ---- Tabs ---- */
.tabs {
    display: flex;
    gap: var(--space-1);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--space-4);
    flex-wrap: wrap;
}
.tabs button {
    padding: var(--space-2) var(--space-4);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-en);
    margin-bottom: -1px;
}
.tabs button:hover {
    color: var(--text-primary);
}
.tabs button.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}
.tab-content {
    padding: var(--space-4) 0;
}
.tab-pane {
    display: none;
}
.tab-pane.active {
    display: block;
}

/* ---- Accordion ---- */
.accordion {
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    overflow: hidden;
}
.accordion-item {
    border-bottom: 1px solid var(--border-light);
}
.accordion-item:last-child {
    border-bottom: none;
}
.accordion-header {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: var(--bg-surface);
    border: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-en);
    text-align: left;
    gap: var(--space-3);
}
.accordion-header:hover {
    background: var(--bg-primary);
}
.accordion-header .accordion-arrow {
    transition: transform var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.accordion-header .accordion-arrow svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.accordion-item.open .accordion-header .accordion-arrow {
    transform: rotate(180deg);
}
.accordion-body {
    padding: 0 var(--space-4) var(--space-3);
    color: var(--text-secondary);
    font-size: 0.875rem;
    display: none;
}
.accordion-item.open .accordion-body {
    display: block;
}

/* ---- Progress ---- */
.progress-wrapper {
    max-width: 400px;
}
.progress-wrapper-inner {
    margin-top: var(--space-4);
}
.progress {
    width: 100%;
    height: 6px;
    background: var(--bg-secondary);
    border-radius: 3px;
    overflow: hidden;
}
.progress .progress-bar {
    height: 100%;
    border-radius: 3px;
    background: var(--primary);
    transition: width 0.6s ease;
}
.progress-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: var(--space-1);
}

/* ---- Skeleton ---- */
.skeleton {
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    animation: skeletonPulse 1.5s ease-in-out infinite;
    min-height: 20px;
}
@keyframes skeletonPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}
.skeleton-text {
    height: 12px;
    margin-bottom: var(--space-2);
}
.skeleton-text:last-child {
    margin-bottom: 0;
}
.skeleton-circle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
}
.skeleton-card {
    padding: var(--space-4);
    background: var(--bg-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
}
.skeleton-card .skeleton-row {
    display: flex;
    gap: var(--space-3);
    align-items: center;
    margin-bottom: var(--space-3);
}
.skeleton-card .skeleton-row:last-child {
    margin-bottom: 0;
}
.skeleton-text-group {
    flex: 1;
}
.skeleton-button-group {
    display: flex;
    gap: var(--space-2);
    margin-top: var(--space-3);
}
.skeleton-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
    max-width: 500px;
}

/* ---- Breadcrumb ---- */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-wrap: wrap;
    font-size: 0.875rem;
    color: var(--text-muted);
}
.breadcrumb a {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}
.breadcrumb a:hover {
    color: var(--primary);
}
.breadcrumb .separator {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
}
.breadcrumb .separator svg {
    width: 14px;
    height: 14px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.breadcrumb .current {
    color: var(--text-primary);
    font-weight: 500;
}

/* ---- Avatar ---- */
.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    flex-shrink: 0;
    overflow: hidden;
}
.avatar-sm {
    width: 32px;
    height: 32px;
    font-size: 0.75rem;
}
.avatar-lg {
    width: 56px;
    height: 56px;
    font-size: 1.25rem;
}
.avatar-group {
    display: flex;
}
.avatar-group .avatar {
    margin-right: -8px;
    border: 2px solid var(--bg-surface);
}
.avatar-group .avatar:last-child {
    margin-right: 0;
}

/* ---- Card variations ---- */
.card {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    padding: var(--space-6);
    transition: all var(--transition-fast);
}
.card:hover {
    box-shadow: var(--shadow-2);
}
.card-header {
    font-weight: 600;
    font-size: 1.125rem;
    margin-bottom: var(--space-2);
    color: var(--text-primary);
}
.card-body {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}
.card-footer {
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--border-light);
}
.card-elevated {
    box-shadow: var(--shadow-2);
}
.card-elevated:hover {
    box-shadow: var(--shadow-4);
}
.card-interactive {
    cursor: pointer;
}
.card-interactive:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-3);
}
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-4);
}

/* ---- Platform Grid ---- */
.platform-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
    margin-top: var(--space-4);
}
.platform-card {
    background: var(--bg-surface);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    border: 1px solid var(--border-light);
    text-align: center;
    transition: all var(--transition-fast);
}
.platform-card:hover {
    box-shadow: var(--shadow-2);
    transform: translateY(-2px);
}
.platform-card .platform-icon {
    font-size: 2rem;
    margin-bottom: var(--space-2);
}
.platform-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}
.platform-card p {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}
.platform-note {
    margin-top: var(--space-4);
    padding: var(--space-4);
    background: var(--bg-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    text-align: center;
}
.platform-note p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}
.platform-note strong {
    color: var(--text-primary);
}

/* ---- Example Grid ---- */
.example-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-4);
    margin-top: var(--space-4);
}
.example-card {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    border: 1px solid var(--border-light);
    transition: all var(--transition-fast);
    cursor: pointer;
    text-align: center;
}
.example-card:hover {
    box-shadow: var(--shadow-3);
    transform: translateY(-3px);
}
.example-card .ex-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-3);
}
.example-card h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}
.example-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: var(--space-1);
}
.examples-note {
    margin-top: var(--space-4);
    padding: var(--space-4);
    background: var(--bg-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    text-align: center;
}
.examples-note p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ---- Footer ---- */
.footer {
    padding: var(--space-8) 0;
    border-top: 1px solid var(--border-light);
    margin-top: var(--space-8);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8125rem;
}
.footer a {
    color: var(--primary);
}
.footer a:hover {
    color: var(--primary-hover);
}
.footer .footer-brand {
    font-weight: 600;
    color: var(--text-secondary);
}
.footer-tagline {
    margin-top: var(--space-2);
    font-size: 0.6875rem;
    color: var(--text-muted);
}

/* ---- Getting Started ---- */
.getting-started-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-6);
    margin-top: var(--space-6);
}
.gs-card {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    border: 1px solid var(--border-light);
    transition: all var(--transition-fast);
}
.gs-card:hover {
    box-shadow: var(--shadow-2);
    transform: translateY(-2px);
}
.gs-card .gs-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-light);
    line-height: 1;
    margin-bottom: var(--space-2);
}
.gs-card h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}
.gs-card p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
}
.gs-card code {
    display: inline-block;
    background: var(--bg-primary);
    padding: 0 var(--space-2);
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    color: var(--primary);
    font-family: monospace;
}
.gs-note {
    margin-top: var(--space-6);
    padding: var(--space-4);
    background: var(--bg-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    text-align: center;
}
.gs-note p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}
.gs-note strong {
    color: var(--text-primary);
}

/* ---- Downloads ---- */
.downloads-card {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    padding: var(--space-6);
    margin-top: var(--space-4);
}
.downloads-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
}
.downloads-grid h4 {
    font-weight: 600;
    margin-bottom: var(--space-2);
}
.downloads-grid p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-3);
}
.downloads-note {
    margin-top: var(--space-4);
    padding: var(--space-3);
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    text-align: center;
}
.downloads-note p {
    font-size: 0.8125rem;
    color: var(--text-muted);
}
.downloads-note strong {
    color: var(--text-primary);
}
.downloads-note code {
    background: var(--bg-surface);
    padding: 0 var(--space-1);
    border-radius: var(--radius-sm);
    font-family: monospace;
    font-size: 0.75rem;
}

/* ---- Layout Grid ---- */
.layout-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--space-4);
    margin-top: var(--space-4);
}
.layout-col {
    background: var(--bg-surface);
    border-radius: var(--radius-sm);
    padding: var(--space-3);
    text-align: center;
    border: 1px solid var(--border-light);
    font-size: 0.75rem;
    color: var(--text-muted);
}
.layout-col-12 { grid-column: span 12; }
.layout-col-6 { grid-column: span 6; }
.layout-col-4 { grid-column: span 4; }
.layout-col-3 { grid-column: span 3; }
.layout-note {
    margin-top: var(--space-6);
    padding: var(--space-4);
    background: var(--bg-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
}
.layout-note p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}
.layout-note strong {
    color: var(--text-primary);
}

/* ---- Dark Mode Cards ---- */
.darkmode-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
    margin-top: var(--space-4);
}
.darkmode-card {
    border-radius: var(--radius-md);
    padding: var(--space-4);
    box-shadow: var(--shadow-1);
}
.darkmode-card h4 {
    font-weight: 600;
    margin-bottom: var(--space-2);
}
.darkmode-card p {
    font-size: 0.875rem;
}
.darkmode-badges {
    margin-top: var(--space-3);
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}
.light-card {
    background: #FAF9F8;
    border: 1px solid #F0EFED;
    color: #2C2A28;
}
.light-card p {
    color: #6A6865;
}
.dark-card {
    background: #2A2A2A;
    border: 1px solid #333333;
    color: #E8E6E3;
}
.dark-card p {
    color: #A8A8A8;
}
.darkmode-note {
    margin-top: var(--space-4);
    padding: var(--space-4);
    background: var(--bg-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    text-align: center;
}
.darkmode-note p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}
.darkmode-note strong {
    color: var(--text-primary);
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes spin {
    to { transform: rotate(360deg); }
}

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

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

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

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes toastIn {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .sidebar {
        width: var(--sidebar-collapsed);
    }
    .sidebar .sidebar-nav a span:not(.nav-icon) {
        display: none;
    }
    .sidebar .sidebar-nav a {
        justify-content: center;
        padding: var(--space-2);
    }
    .main-content {
        margin-left: var(--sidebar-collapsed);
    }
    .sidebar-toggle {
        left: calc(var(--sidebar-collapsed) + var(--space-3));
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: var(--sidebar-width);
        transition: transform var(--transition-base);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .sidebar .sidebar-nav a span:not(.nav-icon) {
        display: inline;
    }
    .sidebar .sidebar-nav a {
        justify-content: flex-start;
        padding: var(--space-2) var(--space-3);
    }
    .main-content {
        margin-left: 0;
    }
    .main-content.expanded {
        margin-left: 0;
    }
    .sidebar-toggle {
        display: none;
    }
    .hamburger {
        display: flex;
    }
    .hero h1 {
        font-size: 2.25rem;
    }
    .hero p {
        font-size: 1rem;
    }
    .section-title {
        font-size: 1.5rem;
    }
    .modal {
        max-width: 100%;
        margin: var(--space-3);
    }
    .toast-container {
        bottom: var(--space-3);
        right: var(--space-3);
        max-width: calc(100% - var(--space-6));
    }
    .component-demo .demo-row {
        flex-direction: column;
        align-items: stretch;
    }
    .tokens-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
    .kpi-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .navbar-actions .lang-toggle {
        display: none;
    }
    .skeleton-grid {
        grid-template-columns: 1fr;
    }
    .downloads-grid {
        grid-template-columns: 1fr;
    }
    .darkmode-grid {
        grid-template-columns: 1fr;
    }
    .layout-grid {
        gap: var(--space-2);
    }
    .layout-col-6 { grid-column: span 12; }
    .layout-col-4 { grid-column: span 6; }
    .layout-col-3 { grid-column: span 6; }
}

@media (max-width: 480px) {
    .navbar-brand {
        font-size: 0.9375rem;
    }
    .hero h1 {
        font-size: 1.75rem;
    }
    .kpi-grid {
        grid-template-columns: 1fr 1fr;
    }
    .kpi-card .kpi-value {
        font-size: 1.5rem;
    }
    .section-spacing {
        padding: var(--space-8) 0;
    }
    .main-content {
        padding: var(--space-4);
    }
    .layout-col-4 { grid-column: span 12; }
    .layout-col-3 { grid-column: span 6; }
}

/* ============================================================
   PRINT STYLES
   ============================================================ */
@media print {
    .navbar,
    .sidebar,
    .sidebar-toggle,
    .toast-container,
    .modal-overlay {
        display: none !important;
    }
    .main-content {
        margin-left: 0 !important;
        margin-top: 0 !important;
        padding: var(--space-4) !important;
    }
    .component-demo {
        break-inside: avoid;
        border: 1px solid #ddd;
    }
    body {
        background: #fff !important;
        color: #000 !important;
    }
    .section-spacing {
        border-bottom: 1px solid #ddd !important;
    }
}