/* ============================================================================
 * SEBASDV DESIGN SYSTEM - Sistema de diseño unificado para proyectos GitHub
 * Version: 3.0.0
 * Estética: Dieter Rams / Braun Industrial Design
 * Autor: sebasdv
 * ============================================================================
 *
 * QUICK REFERENCE GUIDE
 * =====================
 * Buttons:      .btn, .btn-primary, .btn-secondary, .btn-accent, .btn-danger
 * Layout:       .container, .grid, .grid-cols-1/2/3/4/5/6, .flex, .flex-center
 * Cards:        .card, .card-interactive, .panel, .panel-dark
 * Typography:   .text-xs/sm/base/md/lg/xl/2xl/3xl, .text-center/left/right
 * Spacing:      .m-0, .mt/mb-sm/md/lg, .p-0, .p-sm/md/lg/xl
 * Colors:       .bg-primary/secondary/dark/accent, .text-primary/secondary/inverse
 * Controls:     .slider, .toggle, .checkbox, .radio, .segmented-control
 * Progress:     .progress, .progress-thin/thick, .progress-indeterminate
 * Navigation:   .tabs, .breadcrumbs, .pagination, .accordion
 * Indicators:   .badge, .badge-success/warning/danger, .tag, .alert, .tooltip
 * Search:       .search, .search-input, .search-btn
 * Loading:      .spinner, .skeleton, .btn.loading
 * Forms:        input.error, input.success, label.required
 * Accessibility: .text-content, focus-visible, [data-tooltip], prefers-reduced-motion
 * Philosophy:   "Weniger, aber besser" (Less, but better) - Dieter Rams
 * ============================================================================ */

/* ============================================================================
 * 1. VARIABLES DE DISEÑO - Sistema de colores y espaciados
 * ============================================================================ */

:root {
    /* === PALETA DIETER RAMS / BRAUN === */
    --gb-primary: #ed8008;      /* Warm orange - Primary accent */
    --gb-secondary: #ed3f1c;    /* Red-orange - Secondary accent */
    --gb-dark: #2a2a2a;         /* Near black - Text and dark elements */
    --gb-accent: #bf1b1b;       /* Deep red - Strong emphasis */
    --gb-neutral: #736b1e;      /* Olive/Khaki - Earth tone */

    /* === ESTADOS Y FEEDBACK VISUAL === */
    --gb-active: #bf1b1b;       /* Elementos activos/seleccionados */
    --gb-hover: #d47007;        /* Estados hover (darker orange) */
    --gb-disabled: #999999;     /* Elementos deshabilitados */
    --gb-focus: #ed8008;        /* Elementos con foco */

    /* === TEXTO Y CONTRASTE (WCAG AAA COMPLIANT) === */
    --gb-text-primary: #2a2a2a;          /* Texto principal - Dark gray */
    --gb-text-secondary: #5a5a5a;        /* Texto secundario - Medium gray */
    --gb-text-inverse: #ffffff;          /* Texto invertido (blanco sobre oscuro) */
    --gb-text-on-primary: #2a2a2a;       /* Texto sobre --gb-primary (5.3:1; el blanco daba 2.7:1) */

    /* === SEMÁNTICOS (cada fondo lleva su texto; todos >= 4.5:1) === */
    --gb-primary-hover: #f29520;         /* Hover del botón primario (aclara: el texto oscuro mantiene 6:1) */
    --gb-secondary-strong: #d43518;      /* Fondo de botones secundarios (blanco 4.9:1; #ed3f1c daba 3.9:1) */
    --gb-secondary-hover: #b82d12;
    --gb-accent-hover: #a01616;
    --gb-success: #2d7a2d;    --gb-on-success: #ffffff;     /* 5.3:1 */
    --gb-warning: #f2b705;    --gb-on-warning: #2a2a2a;     /* 7.8:1 */
    --gb-info: #2563a8;       --gb-on-info: #ffffff;        /* 6.1:1 */
    --gb-success-text: #1f5a1f;   /* Texto semántico sobre fondos claros/tintados */
    --gb-warning-text: #6b4a00;
    --gb-info-text: #1e3f6b;
    --gb-danger-text: #8f1414;
    --gb-text-high-contrast: #000000;    /* Máximo contraste - Negro puro */
    --gb-text-medium-contrast: #2a2a2a;  /* Contraste estándar */
    --gb-text-low-contrast: #5a5a5a;     /* Contraste bajo - Solo para texto grande */

    /* === SUPERFICIES Y FONDOS === */
    --gb-background: #d9d2c6;    /* Light beige - Main background */
    --gb-surface: #ffffff;       /* White - Card/panel surfaces */

    /* === SOMBRAS Y BORDES === */
    --gb-shadow-dark: rgba(0, 0, 0, 0.1);     /* Sombra sutil */
    --gb-shadow-medium: rgba(0, 0, 0, 0.15);  /* Sombra media */
    --gb-shadow-light: rgba(0, 0, 0, 0.05);   /* Sombra muy sutil */
    --gb-border: #e0e0e0;                     /* Borde gris claro */
    --gb-border-dark: #cccccc;                /* Borde más oscuro */
    
    /* === ESPACIADOS (8-POINT GRID SYSTEM) === */
    /* Sistema de 8 puntos para layouts pixel-perfect y consistencia matemática */
    --spacing-2xs: 4px;    /* 0.5 unidad - espaciado mínimo */
    --spacing-xs: 8px;     /* 1 unidad - espaciado extra pequeño */
    --spacing-sm: 16px;    /* 2 unidades - espaciado pequeño */
    --spacing-md: 24px;    /* 3 unidades - espaciado medio */
    --spacing-lg: 32px;    /* 4 unidades - espaciado grande */
    --spacing-xl: 40px;    /* 5 unidades - espaciado extra grande */
    --spacing-2xl: 48px;   /* 6 unidades - espaciado doble XL */
    --spacing-3xl: 64px;   /* 8 unidades - espaciado máximo */

    /* === TAMAÑOS DE FUENTE (PERFECT FOURTH SCALE - 1.333 RATIO) === */
    /* Usando rem para mejor accesibilidad y respeto a preferencias del usuario */
    /* Escala matemática armoniosa para jerarquía visual óptima */
    --font-size-xs: 0.75rem;     /* 12px - texto muy pequeño, mínimo legible */
    --font-size-sm: 0.875rem;    /* 14px - texto pequeño, secundario */
    --font-size-base: 1rem;      /* 16px - texto base (estándar web accesible) */
    --font-size-md: 1.125rem;    /* 18px - texto enfatizado */
    --font-size-lg: 1.333rem;    /* ~21px - encabezados h3 */
    --font-size-xl: 1.777rem;    /* ~28px - encabezados h2 */
    --font-size-2xl: 2.369rem;   /* ~38px - encabezados h1 */
    --font-size-3xl: 3.157rem;   /* ~50px - texto hero/landing */
    
    /* === BORDES Y RADIOS === */
    --border-width: 1px;
    --border-width-thick: 2px;
    --border-radius: 4px;          /* Subtle rounding - Rams aesthetic */
    --border-radius-sm: 2px;       /* Very subtle */
    --border-radius-lg: 8px;       /* Larger rounding for cards */
    --border-radius-md: 6px;       /* Intermedio (estaba usado pero sin definir) */

    /* === SOMBRAS MODERNAS (SUBTLE, FUNCTIONAL) === */
    --shadow-sm: 0 1px 3px var(--gb-shadow-light);
    --shadow-md: 0 2px 8px var(--gb-shadow-dark);
    --shadow-lg: 0 4px 16px var(--gb-shadow-medium);
    --shadow-hover: 0 8px 24px var(--gb-shadow-medium);
    
    /* === TRANSICIONES === */
    --transition-fast: all 0.1s ease;
    --transition-normal: all 0.2s ease;
    --transition-slow: all 0.3s ease;
    
    /* === TAMAÑOS MÍNIMOS (ACCESSIBILITY) === */
    --min-touch-target: 44px;       /* WCAG 2.1 AAA mínimo para touch targets */
    --min-touch-target-mobile: 48px; /* iOS/Material Design recomendado */

    /* === Z-INDEX === */
    --z-base: 1;
    --z-overlay: 100;
    --z-modal: 500;
    --z-toast: 600;
    --z-scanlines: 1000;
    --z-tooltip: 2000;

    /* === ANCHOS ÓPTIMOS (READABILITY) === */
    --max-text-width: 65ch;         /* ~65 caracteres = óptimo para lectura */
    --max-code-width: 80ch;         /* Ancho tradicional de terminal */
}


/* ============================================================================
 * 2. RESET Y ESTILOS BASE
 * ============================================================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;       /* Smooth font rendering */
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--gb-background);
    font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--gb-text-primary);
    line-height: 1.6;
    min-height: 100vh;
    padding: var(--spacing-md);
    touch-action: manipulation;        /* Mejora performance táctil */
    max-width: 100vw;
    overflow-x: hidden;
    position: relative;
}

/* Dynamic Viewport Height para móviles */
@media (max-width: 768px) {
    body {
        min-height: 100dvh;
    }
}

/* Removed scanlines effect - clean modern aesthetic */


/* ============================================================================
 * 3. TIPOGRAFÍA
 * ============================================================================ */

/* Importar fuente IBM Plex Sans */
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&display=swap');

h1, h2, h3, h4, h5, h6 {
    font-family: 'IBM Plex Sans', sans-serif;
    color: var(--gb-text-primary);
    letter-spacing: -0.02em;
    font-weight: 600;
}

/* === CONTEXTUAL LINE-HEIGHT (larger text = tighter leading) === */
h1 {
    font-size: var(--font-size-2xl);
    line-height: 1.1;  /* Headlines grandes no necesitan mucho espacio */
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: var(--font-size-xl);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: var(--font-size-lg);
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}

h4, h5, h6 {
    font-size: var(--font-size-base);
    line-height: 1.4;
    margin-bottom: var(--spacing-sm);
}

p {
    font-size: var(--font-size-base);
    line-height: 1.6;  /* Texto de cuerpo necesita espacio para respirar */
    margin-bottom: var(--spacing-sm);
}

/* === UTILITY CLASSES DE TIPOGRAFÍA === */
.text-3xl {
    font-size: var(--font-size-3xl);
    line-height: 1.1;
}

.text-2xl {
    font-size: var(--font-size-2xl);
    line-height: 1.1;
}

.text-xl {
    font-size: var(--font-size-xl);
    line-height: 1.2;
}

.text-lg {
    font-size: var(--font-size-lg);
    line-height: 1.3;
}

.text-md {
    font-size: var(--font-size-md);
    line-height: 1.5;
}

.text-base {
    font-size: var(--font-size-base);
    line-height: 1.6;
}

.text-sm {
    font-size: var(--font-size-sm);
    line-height: 1.5;
}

.text-xs {
    font-size: var(--font-size-xs);
    line-height: 1.4;
}

/* === OPTIMAL READING WIDTH === */
.text-content,
.prose {
    max-width: var(--max-text-width);
    margin-left: auto;
    margin-right: auto;
}

/* === CONTRAST UTILITIES === */
.text-high-contrast {
    color: var(--gb-text-high-contrast);
}

.text-medium-contrast {
    color: var(--gb-text-medium-contrast);
}

.text-low-contrast {
    color: var(--gb-text-low-contrast);
}


/* ============================================================================
 * 4. BOTONES - Sistema de botones Dieter Rams
 * ============================================================================ */

.btn,
button {
    font-family: 'IBM Plex Sans', sans-serif;
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--gb-text-primary);
    background: var(--gb-surface);
    border: var(--border-width) solid var(--gb-border);
    border-radius: var(--border-radius);
    padding: 12px 24px;
    cursor: pointer;

    /* === SMOOTH TRANSITIONS === */
    transition:
        transform 0.15s ease,
        background-color 0.15s ease,
        box-shadow 0.15s ease,
        border-color 0.15s ease;

    text-transform: none;
    letter-spacing: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    text-decoration: none;
    user-select: none;
    position: relative;
    box-shadow: var(--shadow-sm);

    /* === WCAG 2.1 AAA TOUCH TARGETS === */
    min-height: var(--min-touch-target);

    /* === MOBILE TAP HIGHLIGHT === */
    -webkit-tap-highlight-color: rgba(237, 128, 8, 0.1);
}

/* === HOVER STATE (subtle lift) === */
.btn:hover:not(:disabled),
button:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* === ACTIVE STATE (pressed) === */
.btn:active:not(:disabled),
button:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

/* === DISABLED STATE === */
.btn:disabled,
button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    pointer-events: none;
}

/* === LOADING STATE === */
.btn.loading,
button.loading {
    pointer-events: none;
    opacity: 0.7;
    position: relative;
}

.btn.loading::after,
button.loading::after {
    content: "";
    position: absolute;
    right: 12px;
    width: 12px;
    height: 12px;
    border: 2px solid var(--gb-dark);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* === VARIANTES DE BOTONES === */

.btn-primary {
    background: var(--gb-primary);
    color: var(--gb-text-on-primary);
    border-color: var(--gb-primary);
}

.btn-primary:hover:not(:disabled) {
    background: var(--gb-primary-hover);
    border-color: var(--gb-primary-hover);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background: var(--gb-secondary-strong);
    color: var(--gb-text-inverse);
    border-color: var(--gb-secondary-strong);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--gb-secondary-hover);
    border-color: var(--gb-secondary-hover);
    box-shadow: var(--shadow-hover);
}

.btn-accent {
    background: var(--gb-accent);
    color: var(--gb-text-inverse);
    border-color: var(--gb-accent);
}

.btn-accent:hover:not(:disabled) {
    background: var(--gb-accent-hover);
    border-color: var(--gb-accent-hover);
    box-shadow: var(--shadow-hover);
}

/* Estado activo/seleccionado */
.btn.active,
button.active {
    background: var(--gb-active);
    color: var(--gb-text-inverse);
    border-color: var(--gb-active);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Botón en modo peligro/alerta */
.btn-danger {
    background: var(--gb-accent);
    color: var(--gb-text-inverse);
    border-color: var(--gb-accent);
}

.btn-danger:hover:not(:disabled) {
    background: var(--gb-accent-hover);
    border-color: var(--gb-accent-hover);
}


/* ============================================================================
 * 4.5. FOCUS INDICATORS - WCAG 2.4.7 Level AA Compliance
 * ============================================================================ */

/* Remove default browser focus */
*:focus {
    outline: none;
}

/* Enhanced focus-visible for keyboard navigation */
*:focus-visible {
    outline: 3px solid var(--gb-accent);
    outline-offset: 2px;
}

/* Button specific focus */
.btn:focus-visible,
button:focus-visible {
    outline: 3px solid var(--gb-dark);
    outline-offset: 3px;
}

/* Link focus */
a:focus-visible {
    outline: 3px solid var(--gb-accent);
    outline-offset: 2px;
    text-decoration: underline;
}


/* ============================================================================
 * 5. LAYOUT - Contenedores y grids
 * ============================================================================ */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-sm {
    max-width: 800px;
}

.container-xs {
    max-width: 600px;
}

/* === GRID SYSTEM === */
.grid {
    display: grid;
    gap: var(--spacing-md);  /* Increased from sm */
}

/* Explicit column grids */
.grid-cols-1,
.grid-1 {
    grid-template-columns: repeat(1, 1fr);
}

.grid-cols-2,
.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3,
.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4,
.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.grid-cols-5,
.grid-5 {
    grid-template-columns: repeat(5, 1fr);
}

.grid-cols-6,
.grid-6 {
    grid-template-columns: repeat(6, 1fr);
}

/* Grid responsive automático con mejor minmax */
.grid-auto {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));  /* Increased from 200px */
}

/* === FLEXBOX UTILITIES === */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.flex-center {
    align-items: center;
    justify-content: center;
}

.flex-between {
    justify-content: space-between;
}

.flex-wrap {
    flex-wrap: wrap;
}

.gap-2xs {
    gap: var(--spacing-2xs);
}

.gap-xs {
    gap: var(--spacing-xs);
}

.gap-sm {
    gap: var(--spacing-sm);
}

.gap-md {
    gap: var(--spacing-md);
}

.gap-lg {
    gap: var(--spacing-lg);
}

.gap-xl {
    gap: var(--spacing-xl);
}

.gap-2xl {
    gap: var(--spacing-2xl);
}


/* ============================================================================
 * 6. TARJETAS Y PANELES
 * ============================================================================ */

.card,
.panel {
    background: var(--gb-surface);
    border: var(--border-width) solid var(--gb-border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
}

.card-header {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--gb-border);
    color: var(--gb-text-primary);
}

.card-body {
    color: var(--gb-text-primary);
}

/* === INTERACTIVE CARD VARIANT === */
.card-interactive {
    cursor: pointer;
}

.card-interactive:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--gb-border-dark);
}

.card-interactive:active {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

/* Panel oscuro (invertido) */
.panel-dark {
    background: var(--gb-dark);
    color: var(--gb-text-inverse);
    border-color: var(--gb-dark);
}

.panel-dark .card-header {
    color: var(--gb-text-inverse);
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

.panel-dark .card-body {
    color: var(--gb-text-inverse);
}


/* ============================================================================
 * 7. TERMINALES Y LOGS
 * ============================================================================ */

.terminal {
    background: var(--gb-dark);
    border: var(--border-width) solid var(--gb-shadow-light);
    padding: var(--spacing-md);
    font-family: 'IBM Plex Mono', 'Courier New', monospace;
    font-size: var(--font-size-sm);
    color: var(--gb-text-inverse);
    overflow-y: auto;
    max-height: 300px;
    max-width: var(--max-code-width);  /* Optimal width for code */
    line-height: 1.8;
}

.terminal-line {
    margin-bottom: var(--spacing-xs);
    word-break: break-word;
}

/* Scroll personalizado para terminal */
.terminal::-webkit-scrollbar {
    width: 8px;
}

.terminal::-webkit-scrollbar-track {
    background: var(--gb-dark);
}

.terminal::-webkit-scrollbar-thumb {
    background: var(--gb-accent);
    border: 1px solid var(--gb-dark);
}


/* ============================================================================
 * 8. MODALES Y OVERLAYS
 * ============================================================================ */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    z-index: var(--z-modal);
    display: none;
    align-items: center;
    justify-content: center;
}

.modal-overlay.show {
    display: flex;
}

.modal {
    background: var(--gb-surface);
    border: var(--border-width-thick) solid var(--gb-border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    max-width: 90%;
    width: 600px;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--gb-text-primary);
    margin-bottom: var(--spacing-md);
}

.modal-content {
    color: var(--gb-text-primary);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
}


/* ============================================================================
 * 9. FORMULARIOS
 * ============================================================================ */

input,
textarea,
select {
    font-family: 'IBM Plex Sans', sans-serif;
    font-size: 1rem;  /* Prevents iOS zoom on focus */
    color: var(--gb-text-primary);
    background: var(--gb-surface);
    border: var(--border-width) solid var(--gb-border);
    border-radius: var(--border-radius);
    padding: 12px var(--spacing-sm);
    width: 100%;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;

    /* === WCAG Touch Targets === */
    min-height: var(--min-touch-target);
}

/* === FOCUS STATE === */
input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--gb-primary);
    box-shadow: 0 0 0 3px rgba(237, 128, 8, 0.15);
}

input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: none;
    border-color: var(--gb-primary);
    box-shadow: 0 0 0 3px rgba(237, 128, 8, 0.15);
}

/* === ERROR STATE === */
input.error,
textarea.error,
select.error {
    border-color: var(--gb-accent);
    background: rgba(191, 27, 27, 0.05);
}

/* === SUCCESS STATE === */
input.success,
textarea.success,
select.success {
    border-color: var(--gb-success);
    background: color-mix(in srgb, var(--gb-success) 5%, transparent);
}

/* === PLACEHOLDER STYLING === */
input::placeholder,
textarea::placeholder {
    color: var(--gb-text-secondary);
    opacity: 0.6;
}

label {
    display: block;
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
    color: var(--gb-text-primary);
}

/* === REQUIRED FIELD INDICATOR === */
label.required::after {
    content: " *";
    color: var(--gb-dark);
    font-weight: bold;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

/* === FORM HELP TEXT === */
.form-help {
    font-size: var(--font-size-xs);
    color: var(--gb-text-secondary);
    margin-top: var(--spacing-2xs);
}

.form-error {
    font-size: var(--font-size-xs);
    color: var(--gb-dark);
    margin-top: var(--spacing-2xs);
}


/* ============================================================================
 * 10. ANIMACIONES
 * ============================================================================ */

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

@keyframes glitch {
    0% {
        transform: translate(0);
    }
    20% {
        transform: translate(-2px, 2px);
    }
    40% {
        transform: translate(-2px, -2px);
    }
    60% {
        transform: translate(2px, 2px);
    }
    80% {
        transform: translate(2px, -2px);
    }
    100% {
        transform: translate(0);
    }
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

.animate-glitch {
    animation: glitch 0.5s ease-in-out;
}


/* ============================================================================
 * 10.5. LOADING STATES - Skeleton & Spinner
 * ============================================================================ */

/* === SKELETON LOADING === */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--gb-secondary) 25%,
        var(--gb-primary) 50%,
        var(--gb-secondary) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: var(--border-radius);
}

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

/* Skeleton variants */
.skeleton-text {
    height: 1em;
    margin-bottom: var(--spacing-xs);
}

.skeleton-title {
    height: 2em;
    margin-bottom: var(--spacing-sm);
    width: 60%;
}

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

/* === SPINNER === */
.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--gb-accent);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: inline-block;
}

.spinner-lg {
    width: 48px;
    height: 48px;
    border-width: 4px;
    border: 4px solid var(--gb-accent);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: inline-block;
}

.spinner-sm {
    width: 16px;
    height: 16px;
    border-width: 2px;
    border: 2px solid var(--gb-accent);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: inline-block;
}


/* ============================================================================
 * 10.6. TOAST NOTIFICATIONS
 * ============================================================================ */

.toast {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    background: var(--gb-dark);
    color: var(--gb-text-inverse);
    padding: var(--spacing-md) var(--spacing-lg);
    border: 2px solid var(--gb-border);
    z-index: var(--z-toast);
    min-width: 250px;
    max-width: 400px;
    animation: toast-slide-in 0.3s ease;
}

@keyframes toast-slide-in {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast.toast-exit {
    animation: toast-slide-out 0.3s ease forwards;
}

@keyframes toast-slide-out {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(400px);
        opacity: 0;
    }
}

/* Toast variants */
.toast.success {
    border-color: var(--gb-secondary);
    background: var(--gb-secondary);
    color: var(--gb-text-primary);
}

.toast.error {
    border-color: var(--gb-accent);
}

.toast.info {
    border-color: var(--gb-primary);
    background: var(--gb-primary);
    color: var(--gb-text-primary);
}

/* Toast mobile positioning */
@media (max-width: 768px) {
    .toast {
        left: var(--spacing-sm);
        right: var(--spacing-sm);
        bottom: var(--spacing-sm);
        min-width: auto;
    }
}


/* ============================================================================
 * 11. UTILIDADES
 * ============================================================================ */

/* === DISPLAY === */
.hidden {
    display: none !important;
}

.block {
    display: block !important;
}

.inline-block {
    display: inline-block !important;
}

/* === SPACING === */
.m-0 { margin: 0 !important; }
.m-2xs { margin: var(--spacing-2xs); }
.m-xs { margin: var(--spacing-xs); }
.m-sm { margin: var(--spacing-sm); }
.m-md { margin: var(--spacing-md); }
.m-lg { margin: var(--spacing-lg); }
.m-xl { margin: var(--spacing-xl); }

.mt-2xs { margin-top: var(--spacing-2xs); }
.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-2xs { margin-bottom: var(--spacing-2xs); }
.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }

.p-0 { padding: 0 !important; }
.p-2xs { padding: var(--spacing-2xs); }
.p-xs { padding: var(--spacing-xs); }
.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

.px-sm { padding-left: var(--spacing-sm); padding-right: var(--spacing-sm); }
.px-md { padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
.px-lg { padding-left: var(--spacing-lg); padding-right: var(--spacing-lg); }

.py-sm { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-md { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-lg { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }

/* === TEXT ALIGNMENT === */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* === COLORES DE TEXTO === */
.text-primary { color: var(--gb-text-primary); }
.text-secondary { color: var(--gb-text-secondary); }
.text-inverse { color: var(--gb-text-inverse); }

/* === FONDOS === */
.bg-primary { background: var(--gb-primary); }
.bg-secondary { background: var(--gb-secondary); }
.bg-dark { background: var(--gb-dark); }
.bg-accent { background: var(--gb-accent); }

/* === WIDTH === */
.w-full { width: 100%; }
.w-auto { width: auto; }


/* ============================================================================
 * 12. DARK MODE SUPPORT
 * ============================================================================ */

/* Auto dark mode based on system preference */
@media (prefers-color-scheme: dark) {
    :root {
        /* Dark mode color adjustments - OPTION A: Muted colors */
        --gb-primary: #c77007;       /* Muted orange (-20% brightness) */
        --gb-secondary: #c93518;     /* Muted red-orange (-20% brightness) */
        --gb-dark: #1a1a1a;          /* Very dark for panels */
        --gb-accent: #9f1616;        /* Muted deep red (-20% brightness) */
        --gb-neutral: #8a8260;       /* Lighter olive for dark mode */

        /* Dark mode text colors */
        --gb-text-primary: #e8e8e8;  /* Slightly brighter for readability */
        --gb-text-secondary: #b0b0b0;
        --gb-text-inverse: #ffffff;   /* White for dark panels/buttons */
        --gb-text-on-primary: #1a1a1a; /* Texto sobre --gb-primary (4.8:1) */
        --gb-primary-hover: #dc8010;
        --gb-secondary-strong: #c93518;
        --gb-secondary-hover: #a82c13;
        --gb-accent-hover: #861212;
        --gb-success: #5fbf5f;
        --gb-on-success: #1a1a1a;
        --gb-warning: #f2b705;
        --gb-on-warning: #1a1a1a;
        --gb-info: #6aa6e8;
        --gb-on-info: #1a1a1a;
        --gb-success-text: #8fd98f;
        --gb-warning-text: #f2c94c;
        --gb-info-text: #9cc4f2;
        --gb-danger-text: #f28b8b;
        --gb-text-high-contrast: #ffffff;
        --gb-text-medium-contrast: #e8e8e8;
        --gb-text-low-contrast: #b0b0b0;

        /* Dark mode surfaces - improved separation */
        --gb-background: #1a1a1a;    /* Darker body background */
        --gb-surface: #242424;       /* Lighter cards for better contrast */

        /* Dark mode shadows and borders */
        --gb-shadow-dark: rgba(0, 0, 0, 0.4);
        --gb-shadow-medium: rgba(0, 0, 0, 0.3);
        --gb-shadow-light: rgba(0, 0, 0, 0.2);
        --gb-border: #404040;
        --gb-border-dark: #555555;

        /* Dark mode interactive states - adjusted */
        --gb-hover: #b06606;         /* Dimmer hover state */
    }
    
    /* Fix specific elements that have hardcoded colors in light mode */
    /* Most elements will automatically use the correct colors through CSS variables */
    /* We only override elements that have explicit color declarations */

    .card-header {
        color: var(--gb-text-primary);
    }

    .card-body {
        color: var(--gb-text-primary);
    }

    .modal-title {
        color: var(--gb-text-primary);
    }

    .modal-content {
        color: var(--gb-text-primary);
    }
    
    /* Fix terminal in dark mode - needs special handling */
    .terminal {
        background: var(--gb-dark);
        color: var(--gb-text-primary);
    }

    .terminal-line {
        color: var(--gb-text-primary);
    }

    /* Fix panel-dark in dark mode - needs special handling */
    .panel-dark {
        background: var(--gb-dark);
        color: var(--gb-text-inverse);
    }

    .panel-dark .card-header {
        color: var(--gb-text-inverse);
    }

    .panel-dark .card-body {
        color: var(--gb-text-inverse);
    }

    /* Fix modal overlay in dark mode */
    .modal-overlay {
        background: rgba(0, 0, 0, 0.85);
    }

    /* Ensure modal has proper contrast in dark mode */
    .modal {
        background: var(--gb-surface);
        border-color: var(--gb-border);
    }
}

/* Manual dark mode toggle class */
body.dark-mode {
    /* Dark mode color adjustments - OPTION A: Muted colors */
    --gb-primary: #c77007;       /* Muted orange (-20% brightness) */
    --gb-secondary: #c93518;     /* Muted red-orange (-20% brightness) */
    --gb-dark: #1a1a1a;          /* Very dark for panels */
    --gb-accent: #9f1616;        /* Muted deep red (-20% brightness) */
    --gb-neutral: #8a8260;       /* Lighter olive for dark mode */

    /* Dark mode text colors */
    --gb-text-primary: #e8e8e8;  /* Slightly brighter for readability */
    --gb-text-secondary: #b0b0b0;
    --gb-text-inverse: #ffffff;   /* White for dark panels/buttons */
    --gb-text-on-primary: #1a1a1a; /* Texto sobre --gb-primary (4.8:1) */
    --gb-primary-hover: #dc8010;
    --gb-secondary-strong: #c93518;
    --gb-secondary-hover: #a82c13;
    --gb-accent-hover: #861212;
    --gb-success: #5fbf5f;
    --gb-on-success: #1a1a1a;
    --gb-warning: #f2b705;
    --gb-on-warning: #1a1a1a;
    --gb-info: #6aa6e8;
    --gb-on-info: #1a1a1a;
    --gb-success-text: #8fd98f;
    --gb-warning-text: #f2c94c;
    --gb-info-text: #9cc4f2;
    --gb-danger-text: #f28b8b;
    --gb-text-high-contrast: #ffffff;
    --gb-text-medium-contrast: #e8e8e8;
    --gb-text-low-contrast: #b0b0b0;

    /* Dark mode surfaces - improved separation */
    --gb-background: #1a1a1a;    /* Darker body background */
    --gb-surface: #242424;       /* Lighter cards for better contrast */

    /* Dark mode shadows and borders */
    --gb-shadow-dark: rgba(0, 0, 0, 0.4);
    --gb-shadow-medium: rgba(0, 0, 0, 0.3);
    --gb-shadow-light: rgba(0, 0, 0, 0.2);
    --gb-border: #404040;
    --gb-border-dark: #555555;

    /* Dark mode interactive states - adjusted */
    --gb-hover: #b06606;         /* Dimmer hover state */
}

/* Fix specific elements that have hardcoded colors in light mode */
/* Most elements will automatically use the correct colors through CSS variables */
/* We only override elements that have explicit color declarations */

body.dark-mode .card-header {
    color: var(--gb-text-primary);
}

body.dark-mode .card-body {
    color: var(--gb-text-primary);
}

body.dark-mode .modal-title {
    color: var(--gb-text-primary);
}

body.dark-mode .modal-content {
    color: var(--gb-text-primary);
}

/* Fix terminal in manual dark mode - needs special handling */
body.dark-mode .terminal {
    background: var(--gb-dark);
    color: var(--gb-text-primary);
}

body.dark-mode .terminal-line {
    color: var(--gb-text-primary);
}

/* Fix panel-dark in manual dark mode - needs special handling */
body.dark-mode .panel-dark {
    background: var(--gb-dark);
    color: var(--gb-text-inverse);
}

body.dark-mode .panel-dark .card-header {
    color: var(--gb-text-inverse);
}

body.dark-mode .panel-dark .card-body {
    color: var(--gb-text-inverse);
}

/* Fix modal overlay in manual dark mode */
body.dark-mode .modal-overlay {
    background: rgba(0, 0, 0, 0.85);
}

/* Ensure modal has proper contrast in manual dark mode */
body.dark-mode .modal {
    background: var(--gb-surface);
    border-color: var(--gb-border);
}

/* Manual light mode: fuerza la paleta clara cuando el sistema está en oscuro (par de body.dark-mode) */
body.light-mode {
    /* === PALETA DIETER RAMS / BRAUN === */
    --gb-primary: #ed8008;      /* Warm orange - Primary accent */
    --gb-secondary: #ed3f1c;    /* Red-orange - Secondary accent */
    --gb-dark: #2a2a2a;         /* Near black - Text and dark elements */
    --gb-accent: #bf1b1b;       /* Deep red - Strong emphasis */
    --gb-neutral: #736b1e;      /* Olive/Khaki - Earth tone */

    /* === ESTADOS Y FEEDBACK VISUAL === */
    --gb-active: #bf1b1b;       /* Elementos activos/seleccionados */
    --gb-hover: #d47007;        /* Estados hover (darker orange) */
    --gb-disabled: #999999;     /* Elementos deshabilitados */
    --gb-focus: #ed8008;        /* Elementos con foco */

    /* === TEXTO Y CONTRASTE (WCAG AAA COMPLIANT) === */
    --gb-text-primary: #2a2a2a;          /* Texto principal - Dark gray */
    --gb-text-secondary: #5a5a5a;        /* Texto secundario - Medium gray */
    --gb-text-inverse: #ffffff;          /* Texto invertido (blanco sobre oscuro) */
    --gb-text-on-primary: #2a2a2a;       /* Texto sobre --gb-primary (5.3:1; el blanco daba 2.7:1) */

    /* === SEMÁNTICOS (cada fondo lleva su texto; todos >= 4.5:1) === */
    --gb-primary-hover: #f29520;         /* Hover del botón primario (aclara: el texto oscuro mantiene 6:1) */
    --gb-secondary-strong: #d43518;      /* Fondo de botones secundarios (blanco 4.9:1; #ed3f1c daba 3.9:1) */
    --gb-secondary-hover: #b82d12;
    --gb-accent-hover: #a01616;
    --gb-success: #2d7a2d;    --gb-on-success: #ffffff;     /* 5.3:1 */
    --gb-warning: #f2b705;    --gb-on-warning: #2a2a2a;     /* 7.8:1 */
    --gb-info: #2563a8;       --gb-on-info: #ffffff;        /* 6.1:1 */
    --gb-success-text: #1f5a1f;   /* Texto semántico sobre fondos claros/tintados */
    --gb-warning-text: #6b4a00;
    --gb-info-text: #1e3f6b;
    --gb-danger-text: #8f1414;
    --gb-text-high-contrast: #000000;    /* Máximo contraste - Negro puro */
    --gb-text-medium-contrast: #2a2a2a;  /* Contraste estándar */
    --gb-text-low-contrast: #5a5a5a;     /* Contraste bajo - Solo para texto grande */

    /* === SUPERFICIES Y FONDOS === */
    --gb-background: #d9d2c6;    /* Light beige - Main background */
    --gb-surface: #ffffff;       /* White - Card/panel surfaces */

    /* === SOMBRAS Y BORDES === */
    --gb-shadow-dark: rgba(0, 0, 0, 0.1);     /* Sombra sutil */
    --gb-shadow-medium: rgba(0, 0, 0, 0.15);  /* Sombra media */
    --gb-shadow-light: rgba(0, 0, 0, 0.05);   /* Sombra muy sutil */
    --gb-border: #e0e0e0;                     /* Borde gris claro */
    --gb-border-dark: #cccccc;                /* Borde más oscuro */
    
    /* === ESPACIADOS (8-POINT GRID SYSTEM) === */
    /* Sistema de 8 puntos para layouts pixel-perfect y consistencia matemática */
    --spacing-2xs: 4px;    /* 0.5 unidad - espaciado mínimo */
    --spacing-xs: 8px;     /* 1 unidad - espaciado extra pequeño */
    --spacing-sm: 16px;    /* 2 unidades - espaciado pequeño */
    --spacing-md: 24px;    /* 3 unidades - espaciado medio */
    --spacing-lg: 32px;    /* 4 unidades - espaciado grande */
    --spacing-xl: 40px;    /* 5 unidades - espaciado extra grande */
    --spacing-2xl: 48px;   /* 6 unidades - espaciado doble XL */
    --spacing-3xl: 64px;   /* 8 unidades - espaciado máximo */

    /* === TAMAÑOS DE FUENTE (PERFECT FOURTH SCALE - 1.333 RATIO) === */
    /* Usando rem para mejor accesibilidad y respeto a preferencias del usuario */
    /* Escala matemática armoniosa para jerarquía visual óptima */
    --font-size-xs: 0.75rem;     /* 12px - texto muy pequeño, mínimo legible */
    --font-size-sm: 0.875rem;    /* 14px - texto pequeño, secundario */
    --font-size-base: 1rem;      /* 16px - texto base (estándar web accesible) */
    --font-size-md: 1.125rem;    /* 18px - texto enfatizado */
    --font-size-lg: 1.333rem;    /* ~21px - encabezados h3 */
    --font-size-xl: 1.777rem;    /* ~28px - encabezados h2 */
    --font-size-2xl: 2.369rem;   /* ~38px - encabezados h1 */
    --font-size-3xl: 3.157rem;   /* ~50px - texto hero/landing */
    
    /* === BORDES Y RADIOS === */
    --border-width: 1px;
    --border-width-thick: 2px;
    --border-radius: 4px;          /* Subtle rounding - Rams aesthetic */
    --border-radius-sm: 2px;       /* Very subtle */
    --border-radius-lg: 8px;       /* Larger rounding for cards */
    --border-radius-md: 6px;       /* Intermedio (estaba usado pero sin definir) */

    /* === SOMBRAS MODERNAS (SUBTLE, FUNCTIONAL) === */
    --shadow-sm: 0 1px 3px var(--gb-shadow-light);
    --shadow-md: 0 2px 8px var(--gb-shadow-dark);
    --shadow-lg: 0 4px 16px var(--gb-shadow-medium);
    --shadow-hover: 0 8px 24px var(--gb-shadow-medium);
    
    /* === TRANSICIONES === */
    --transition-fast: all 0.1s ease;
    --transition-normal: all 0.2s ease;
    --transition-slow: all 0.3s ease;
    
    /* === TAMAÑOS MÍNIMOS (ACCESSIBILITY) === */
    --min-touch-target: 44px;       /* WCAG 2.1 AAA mínimo para touch targets */
    --min-touch-target-mobile: 48px; /* iOS/Material Design recomendado */

    /* === Z-INDEX === */
    --z-base: 1;
    --z-overlay: 100;
    --z-modal: 500;
    --z-toast: 600;
    --z-scanlines: 1000;
    --z-tooltip: 2000;

    /* === ANCHOS ÓPTIMOS (READABILITY) === */
    --max-text-width: 65ch;         /* ~65 caracteres = óptimo para lectura */
    --max-code-width: 80ch;         /* Ancho tradicional de terminal */
}


/* ============================================================================
 * 13. RANGE SLIDERS - Horizontal control sliders
 * ============================================================================ */

.slider-control {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    width: 100%;
}

.slider-control label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gb-text-primary);
}

/* Custom styled range input */
input[type="range"].slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    background: var(--gb-border);
    border-radius: 2px;
    outline: none;
    transition: background 0.2s ease;
    cursor: pointer;
}

input[type="range"].slider:hover {
    background: var(--gb-text-secondary);
}

input[type="range"].slider:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Webkit (Chrome, Safari, Edge) */
input[type="range"].slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--gb-primary);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid var(--gb-surface);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    transition: all 0.2s ease;
}

input[type="range"].slider::-webkit-slider-thumb:hover {
    background: var(--gb-hover);
    transform: scale(1.1);
}

input[type="range"].slider::-webkit-slider-thumb:active {
    transform: scale(0.95);
}

/* Firefox */
input[type="range"].slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--gb-primary);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid var(--gb-surface);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    transition: all 0.2s ease;
}

input[type="range"].slider::-moz-range-thumb:hover {
    background: var(--gb-hover);
    transform: scale(1.1);
}

input[type="range"].slider::-moz-range-thumb:active {
    transform: scale(0.95);
}

/* Firefox track */
input[type="range"].slider::-moz-range-track {
    background: var(--gb-border);
    height: 4px;
    border-radius: 2px;
}

/* Value display */
.slider-value {
    font-size: var(--font-size-sm);
    color: var(--gb-text-secondary);
    font-weight: 500;
    min-width: 48px;
    text-align: right;
}

/* Slider with inline value */
.slider-inline {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.slider-inline input[type="range"] {
    flex: 1;
}

/* Vertical slider variant */
.slider-vertical {
    writing-mode: bt-lr; /* IE */
    -webkit-appearance: slider-vertical; /* WebKit */
    width: 4px;
    height: 150px;
}


/* ============================================================================
 * 14. TOGGLE SWITCHES - On/off binary controls
 * ============================================================================ */

.toggle {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    user-select: none;
}

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

.toggle-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: var(--font-size-base);
    color: var(--gb-text-primary);
}

/* Switch track */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 24px;
    background: var(--gb-border);
    border-radius: 24px;
    transition: background-color 0.3s ease;
    flex-shrink: 0;
}

/* Switch thumb */
.toggle-switch::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: var(--gb-surface);
    border-radius: 50%;
    transition: transform 0.3s ease, background-color 0.3s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

/* Checked state */
.toggle-input:checked + .toggle-label .toggle-switch {
    background: var(--gb-primary);
}

.toggle-input:checked + .toggle-label .toggle-switch::before {
    transform: translateX(24px);
}

/* Hover state */
.toggle:hover .toggle-switch {
    background: var(--gb-text-secondary);
}

.toggle-input:checked + .toggle-label:hover .toggle-switch {
    background: var(--gb-hover);
}

/* Focus state */
.toggle-input:focus-visible + .toggle-label .toggle-switch {
    outline: 3px solid var(--gb-focus);
    outline-offset: 2px;
}

/* Disabled state */
.toggle-input:disabled + .toggle-label {
    opacity: 0.5;
    cursor: not-allowed;
}

.toggle-input:disabled + .toggle-label .toggle-switch {
    cursor: not-allowed;
}

/* Toggle sizes */
.toggle-sm .toggle-switch {
    width: 36px;
    height: 20px;
}

.toggle-sm .toggle-switch::before {
    width: 16px;
    height: 16px;
}

.toggle-sm .toggle-input:checked + .toggle-label .toggle-switch::before {
    transform: translateX(16px);
}

.toggle-lg .toggle-switch {
    width: 60px;
    height: 32px;
}

.toggle-lg .toggle-switch::before {
    width: 28px;
    height: 28px;
}

.toggle-lg .toggle-input:checked + .toggle-label .toggle-switch::before {
    transform: translateX(28px);
}


/* ============================================================================
 * 15. PROGRESS BARS - Loading and completion indicators
 * ============================================================================ */

.progress {
    width: 100%;
    height: 8px;
    background: var(--gb-border);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.progress-bar {
    height: 100%;
    background: var(--gb-primary);
    border-radius: 4px;
    transition: width 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: var(--spacing-xs);
}

/* Progress label */
.progress-label {
    font-size: var(--font-size-xs);
    color: var(--gb-text-inverse);
    font-weight: 600;
    white-space: nowrap;
    padding: 0 var(--spacing-xs);
}

/* Thin variant */
.progress-thin {
    height: 4px;
}

.progress-thin .progress-bar {
    border-radius: 2px;
}

/* Thick variant */
.progress-thick {
    height: 16px;
}

/* Color variants */
.progress-success .progress-bar {
    background: var(--gb-success);
    color: var(--gb-on-success);
}

.progress-warning .progress-bar {
    background: var(--gb-warning);
    color: var(--gb-on-warning);
}

.progress-danger .progress-bar {
    background: var(--gb-accent);
}

/* Indeterminate progress (loading without known duration) */
.progress-indeterminate .progress-bar {
    width: 30% !important;
    animation: progress-indeterminate 1.5s ease-in-out infinite;
}

@keyframes progress-indeterminate {
    0% {
        transform: translateX(-100%);
    }
    50% {
        transform: translateX(350%);
    }
    100% {
        transform: translateX(-100%);
    }
}

/* Striped progress */
.progress-striped .progress-bar {
    background-image: linear-gradient(
        45deg,
        rgba(255, 255, 255, 0.15) 25%,
        transparent 25%,
        transparent 50%,
        rgba(255, 255, 255, 0.15) 50%,
        rgba(255, 255, 255, 0.15) 75%,
        transparent 75%,
        transparent
    );
    background-size: 1rem 1rem;
}

/* Animated stripes */
.progress-striped.progress-animated .progress-bar {
    animation: progress-stripes 1s linear infinite;
}

@keyframes progress-stripes {
    0% {
        background-position: 1rem 0;
    }
    100% {
        background-position: 0 0;
    }
}

/* Progress with label outside */
.progress-wrapper {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.progress-wrapper .progress-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-sm);
}

.progress-wrapper .progress-title {
    color: var(--gb-text-primary);
    font-weight: 500;
}

.progress-wrapper .progress-percentage {
    color: var(--gb-text-secondary);
    font-weight: 600;
}


/* ============================================================================
 * 16. STYLED CHECKBOXES - Custom checkbox controls
 * ============================================================================ */

.checkbox {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    user-select: none;
    position: relative;
}

.checkbox input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.checkbox-custom {
    position: relative;
    display: inline-block;
    width: 20px;
    height: 20px;
    background: var(--gb-surface);
    border: 2px solid var(--gb-border);
    border-radius: var(--border-radius-sm);
    transition: all 0.2s ease;
    flex-shrink: 0;
}

/* Checkmark */
.checkbox-custom::after {
    content: '';
    position: absolute;
    display: none;
    left: 6px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* Checked state */
.checkbox input[type="checkbox"]:checked + .checkbox-custom {
    background: var(--gb-primary);
    border-color: var(--gb-primary);
}

.checkbox input[type="checkbox"]:checked + .checkbox-custom::after {
    display: block;
}

/* Hover state */
.checkbox:hover .checkbox-custom {
    border-color: var(--gb-primary);
}

/* Focus state */
.checkbox input[type="checkbox"]:focus-visible + .checkbox-custom {
    outline: 3px solid var(--gb-focus);
    outline-offset: 2px;
}

/* Disabled state */
.checkbox input[type="checkbox"]:disabled + .checkbox-custom {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--gb-border);
}

.checkbox input[type="checkbox"]:disabled ~ .checkbox-label {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Label */
.checkbox-label {
    font-size: var(--font-size-base);
    color: var(--gb-text-primary);
    cursor: pointer;
}

/* Indeterminate state */
.checkbox input[type="checkbox"]:indeterminate + .checkbox-custom {
    background: var(--gb-primary);
    border-color: var(--gb-primary);
}

.checkbox input[type="checkbox"]:indeterminate + .checkbox-custom::after {
    display: block;
    left: 3px;
    top: 7px;
    width: 10px;
    height: 0;
    border-width: 0 0 2px 0;
    transform: rotate(0deg);
}


/* ============================================================================
 * 17. STYLED RADIO BUTTONS - Custom radio controls
 * ============================================================================ */

.radio {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    user-select: none;
    position: relative;
}

.radio input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.radio-custom {
    position: relative;
    display: inline-block;
    width: 20px;
    height: 20px;
    background: var(--gb-surface);
    border: 2px solid var(--gb-border);
    border-radius: 50%;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

/* Inner dot */
.radio-custom::after {
    content: '';
    position: absolute;
    display: none;
    left: 4px;
    top: 4px;
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
}

/* Checked state */
.radio input[type="radio"]:checked + .radio-custom {
    background: var(--gb-primary);
    border-color: var(--gb-primary);
}

.radio input[type="radio"]:checked + .radio-custom::after {
    display: block;
}

/* Hover state */
.radio:hover .radio-custom {
    border-color: var(--gb-primary);
}

/* Focus state */
.radio input[type="radio"]:focus-visible + .radio-custom {
    outline: 3px solid var(--gb-focus);
    outline-offset: 2px;
}

/* Disabled state */
.radio input[type="radio"]:disabled + .radio-custom {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--gb-border);
}

.radio input[type="radio"]:disabled ~ .radio-label {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Label */
.radio-label {
    font-size: var(--font-size-base);
    color: var(--gb-text-primary);
    cursor: pointer;
}


/* ============================================================================
 * 18. SEGMENTED CONTROLS - Grouped radio-style controls
 * ============================================================================ */

.segmented-control {
    display: inline-flex;
    background: var(--gb-border);
    border-radius: var(--border-radius-md);
    padding: 4px;
    gap: 4px;
}

.segmented-control input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.segmented-control label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gb-text-secondary);
    background: transparent;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
    white-space: nowrap;
    min-height: 32px;
}

.segmented-control input[type="radio"]:checked + label {
    background: var(--gb-surface);
    color: var(--gb-text-primary);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.segmented-control label:hover {
    color: var(--gb-text-primary);
}

.segmented-control input[type="radio"]:focus-visible + label {
    outline: 2px solid var(--gb-focus);
    outline-offset: 2px;
}

/* Compact variant */
.segmented-control-sm label {
    padding: 4px var(--spacing-sm);
    font-size: var(--font-size-xs);
    min-height: 24px;
}

/* Large variant */
.segmented-control-lg label {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    min-height: 40px;
}


/* ============================================================================
 * 19. TABS - Tabbed navigation component
 * ============================================================================ */

.tabs {
    display: flex;
    gap: var(--spacing-xs);
    border-bottom: 2px solid var(--gb-border);
    margin-bottom: var(--spacing-md);
}

.tab {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--gb-text-secondary);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
}

.tab:hover {
    color: var(--gb-text-primary);
    background: rgba(0, 0, 0, 0.02);
}

.tab.active {
    color: var(--gb-primary);
    border-bottom-color: var(--gb-primary);
}

.tab:focus-visible {
    outline: 2px solid var(--gb-focus);
    outline-offset: 2px;
}

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

/* Tab content */
.tab-content {
    padding: var(--spacing-md) 0;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

/* Filled tabs variant */
.tabs-filled .tab {
    background: var(--gb-border);
    border-radius: var(--border-radius-sm) var(--border-radius-sm) 0 0;
    border-bottom: none;
}

.tabs-filled .tab.active {
    background: var(--gb-surface);
    color: var(--gb-primary);
}

/* Pills variant */
.tabs-pills {
    border-bottom: none;
}

.tabs-pills .tab {
    border-radius: var(--border-radius-md);
    border-bottom: none;
    margin-bottom: 0;
}

.tabs-pills .tab.active {
    background: var(--gb-primary);
    color: var(--gb-text-inverse);
}


/* ============================================================================
 * 20. BADGES & TAGS - Status indicators and labels
 * ============================================================================ */

.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 2px var(--spacing-xs);
    font-size: var(--font-size-xs);
    font-weight: 600;
    line-height: 1;
    color: var(--gb-text-on-primary);
    background: var(--gb-primary);
    border-radius: var(--border-radius-sm);
    white-space: nowrap;
    vertical-align: middle;
}

/* Badge variants */
.badge-success {
    background: var(--gb-success);
    color: var(--gb-on-success);
}

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

.badge-danger {
    background: var(--gb-accent);
    color: var(--gb-text-inverse);
}

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

.badge-secondary {
    background: var(--gb-text-secondary);
}

/* Pill shaped badge */
.badge-pill {
    padding: 4px var(--spacing-sm);
    border-radius: 12px;
}

/* Outlined badge */
.badge-outline {
    background: transparent;
    border: 1px solid var(--gb-primary);
    color: var(--gb-primary);
}

.badge-outline.badge-success {
    border-color: var(--gb-success-text);
    color: var(--gb-success-text);
}

.badge-outline.badge-danger {
    border-color: var(--gb-accent);
    color: var(--gb-accent);
}

/* Dot indicator badge */
.badge-dot {
    position: relative;
    padding-left: 12px;
}

.badge-dot::before {
    content: '';
    position: absolute;
    left: 4px;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: currentColor;
    border-radius: 50%;
}

/* Count badge (for notifications) */
.badge-count {
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    border-radius: 10px;
}

/* Tags (removable labels) */
.tag {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 4px var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--gb-text-primary);
    background: var(--gb-border);
    border: 1px solid var(--gb-border);
    border-radius: var(--border-radius-sm);
    white-space: nowrap;
}

.tag-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    color: var(--gb-text-secondary);
    font-size: 18px;
    line-height: 1;
    transition: all 0.2s ease;
}

.tag-close:hover {
    background: rgba(0, 0, 0, 0.1);
    color: var(--gb-text-primary);
}

/* Tag variants */
.tag-primary {
    background: rgba(237, 128, 8, 0.1);
    border-color: var(--gb-primary);
    color: var(--gb-primary);
}

.tag-success {
    background: color-mix(in srgb, var(--gb-success) 12%, transparent);
    border-color: var(--gb-success);
    color: var(--gb-success-text);
}


/* ============================================================================
 * 21. SEARCH BAR - Enhanced search input component
 * ============================================================================ */

.search {
    display: flex;
    align-items: center;
    position: relative;
    width: 100%;
    max-width: 400px;
}

.search-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-lg);
    padding-right: 48px;
    font-size: var(--font-size-base);
    color: var(--gb-text-primary);
    background: var(--gb-surface);
    border: 2px solid var(--gb-border);
    border-radius: var(--border-radius-md);
    transition: all 0.2s ease;
    outline: none;
}

.search-input:focus {
    border-color: var(--gb-primary);
    box-shadow: 0 0 0 3px rgba(237, 128, 8, 0.1);
}

.search-input::placeholder {
    color: var(--gb-text-secondary);
}

.search-btn {
    position: absolute;
    right: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    background: transparent;
    border: none;
    color: var(--gb-text-secondary);
    cursor: pointer;
    border-radius: var(--border-radius-sm);
    transition: all 0.2s ease;
}

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

/* Search with icon */
.search-with-icon .search-input {
    padding-left: 48px;
}

.search-icon {
    position: absolute;
    left: 12px;
    color: var(--gb-text-secondary);
    pointer-events: none;
}

/* Search loading state */
.search.loading .search-btn::after {
    content: '';
    width: 16px;
    height: 16px;
    border: 2px solid var(--gb-border);
    border-top-color: var(--gb-primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}


/* ============================================================================
 * 22. BREADCRUMBS - Navigation hierarchy
 * ============================================================================ */

.breadcrumbs {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--gb-text-secondary);
}

.breadcrumbs a {
    color: var(--gb-text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

.breadcrumb-separator {
    color: var(--gb-text-secondary);
    user-select: none;
}

.breadcrumbs .current {
    color: var(--gb-text-primary);
    font-weight: 500;
}

/* Breadcrumbs with icons */
.breadcrumbs-with-icons {
    gap: var(--spacing-sm);
}


/* ============================================================================
 * 23. PAGINATION - Page navigation controls
 * ============================================================================ */

.pagination {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    justify-content: center;
}

.pagination-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gb-text-primary);
    background: var(--gb-surface);
    border: 1px solid var(--gb-border);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
}

.pagination-btn:hover:not(:disabled):not(.active) {
    background: var(--gb-border);
    border-color: var(--gb-primary);
}

.pagination-btn.active {
    background: var(--gb-primary);
    color: var(--gb-text-inverse);
    border-color: var(--gb-primary);
}

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

.pagination-ellipsis {
    padding: var(--spacing-xs);
    color: var(--gb-text-secondary);
}

/* Compact pagination */
.pagination-compact .pagination-btn {
    min-width: 32px;
    height: 32px;
    font-size: var(--font-size-xs);
}


/* ============================================================================
 * 24. ACCORDIONS - Collapsible content sections
 * ============================================================================ */

.accordion {
    width: 100%;
    border: 1px solid var(--gb-border);
    border-radius: var(--border-radius-md);
    overflow: hidden;
}

.accordion-item {
    border-bottom: 1px solid var(--gb-border);
}

.accordion-item:last-child {
    border-bottom: none;
}

.accordion-header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--gb-text-primary);
    background: var(--gb-surface);
    border: none;
    text-align: left;
    cursor: pointer;
    transition: all 0.2s ease;
}

.accordion-header:hover {
    background: var(--gb-border);
}

.accordion-header::after {
    content: '+';
    font-size: var(--font-size-xl);
    color: var(--gb-primary);
    transition: transform 0.3s ease;
    line-height: 1;
}

.accordion-header.active::after {
    content: '−';
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-content.active {
    max-height: 500px;
}

.accordion-body {
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--gb-text-secondary);
    background: var(--gb-surface);
}

/* Flush accordion (no borders) */
.accordion-flush {
    border: none;
}

.accordion-flush .accordion-item {
    border-radius: 0;
}


/* ============================================================================
 * 25. ALERTS & BANNERS - Important message displays
 * ============================================================================ */

.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    border-left: 4px solid;
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-md);
}

.alert-icon {
    flex-shrink: 0;
    font-size: var(--font-size-lg);
}

.alert-content {
    flex: 1;
    color: var(--gb-text-primary);
}

.alert-title {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.alert-close {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: 50%;
    color: currentColor;
    cursor: pointer;
    font-size: 20px;
    line-height: 1;
    transition: background 0.2s ease;
}

.alert-close:hover {
    background: rgba(0, 0, 0, 0.1);
}

/* Alert variants */
.alert-info {
    background: color-mix(in srgb, var(--gb-info) 10%, transparent);
    border-color: var(--gb-info);
    color: var(--gb-info-text);
}

.alert-success {
    background: color-mix(in srgb, var(--gb-success) 10%, transparent);
    border-color: var(--gb-success);
    color: var(--gb-success-text);
}

.alert-warning {
    background: color-mix(in srgb, var(--gb-warning) 14%, transparent);
    border-color: var(--gb-warning);
    color: var(--gb-warning-text);
}

.alert-danger {
    background: color-mix(in srgb, var(--gb-accent) 10%, transparent);
    border-color: var(--gb-accent);
    color: var(--gb-danger-text);
}

/* Banner style (full width) */
.banner {
    border-radius: 0;
    border-left: none;
    border-top: 4px solid;
    margin-bottom: 0;
}


/* ============================================================================
 * 26. TOOLTIPS - Contextual help text
 * ============================================================================ */

[data-tooltip] {
    position: relative;
    cursor: help;
}

[data-tooltip]::before,
[data-tooltip]::after {
    position: absolute;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

/* Tooltip bubble */
[data-tooltip]::before {
    content: attr(data-tooltip);
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-4px);
    margin-bottom: 8px;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--gb-dark);
    color: var(--gb-text-inverse);
    font-size: var(--font-size-xs);
    white-space: nowrap;
    border-radius: var(--border-radius-sm);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    z-index: 1000;
}

/* Tooltip arrow */
[data-tooltip]::after {
    content: '';
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 2px;
    border: 4px solid transparent;
    border-top-color: var(--gb-dark);
    z-index: 1000;
}

[data-tooltip]:hover::before,
[data-tooltip]:hover::after {
    opacity: 1;
}

[data-tooltip]:hover::before {
    transform: translateX(-50%) translateY(0);
}

/* Tooltip positions */
[data-tooltip-pos="bottom"]::before {
    bottom: auto;
    top: 100%;
    margin-bottom: 0;
    margin-top: 8px;
    transform: translateX(-50%) translateY(4px);
}

[data-tooltip-pos="bottom"]::after {
    bottom: auto;
    top: 100%;
    margin-bottom: 0;
    margin-top: 2px;
    border-top-color: transparent;
    border-bottom-color: var(--gb-dark);
}

[data-tooltip-pos="bottom"]:hover::before {
    transform: translateX(-50%) translateY(0);
}

[data-tooltip-pos="left"]::before {
    bottom: auto;
    left: auto;
    right: 100%;
    top: 50%;
    margin-right: 8px;
    transform: translateY(-50%) translateX(-4px);
}

[data-tooltip-pos="left"]::after {
    bottom: auto;
    left: auto;
    right: 100%;
    top: 50%;
    margin-right: 2px;
    transform: translateY(-50%);
    border-top-color: transparent;
    border-left-color: var(--gb-dark);
}

[data-tooltip-pos="left"]:hover::before {
    transform: translateY(-50%) translateX(0);
}

[data-tooltip-pos="right"]::before {
    bottom: auto;
    left: 100%;
    right: auto;
    top: 50%;
    margin-left: 8px;
    transform: translateY(-50%) translateX(4px);
}

[data-tooltip-pos="right"]::after {
    bottom: auto;
    left: 100%;
    right: auto;
    top: 50%;
    margin-left: 2px;
    transform: translateY(-50%);
    border-top-color: transparent;
    border-right-color: var(--gb-dark);
}

[data-tooltip-pos="right"]:hover::before {
    transform: translateY(-50%) translateX(0);
}


/* ============================================================================
 * 27. REDUCED MOTION SUPPORT - WCAG 2.1 Compliance
 * ============================================================================ */

/* Disable animations for users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    /* Keep scanlines but make them static */
    body::after {
        opacity: 0.5;
        animation: none;
    }

    /* Disable skeleton loading animation */
    .skeleton {
        animation: none;
        background: var(--gb-secondary);
    }

    /* Disable spinner animation */
    .spinner {
        animation: none;
        border-color: var(--gb-accent);
    }
}


/* ============================================================================
 * 28. RESPONSIVE DESIGN
 * ============================================================================ */

/* Mobile Small: 320px - 479px (default, mobile-first) */
/* Base styles above are mobile-first */

/* Mobile Large: 480px - 767px */
@media (min-width: 480px) {
    :root {
        --spacing-md: 20px;
        --font-size-base: 0.9375rem;  /* 15px */
    }
}

/* Tablet: 768px - 1023px */
@media (min-width: 768px) {
    :root {
        --spacing-md: 24px;
        --font-size-base: 1rem;  /* 16px */
    }

    .grid-2, .grid-cols-2,
    .grid-3, .grid-cols-3,
    .grid-4, .grid-cols-4,
    .grid-5, .grid-cols-5,
    .grid-6, .grid-cols-6 {
        grid-template-columns: repeat(2, 1fr);
    }

    .modal {
        padding: var(--spacing-lg);
        max-width: 90%;
    }
}

/* Tablet Landscape / Desktop Small: 1024px - 1279px */
@media (min-width: 1024px) {
    .grid-3, .grid-cols-3 {
        grid-template-columns: repeat(3, 1fr);
    }

    .grid-4, .grid-cols-4,
    .grid-5, .grid-cols-5,
    .grid-6, .grid-cols-6 {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Desktop: 1280px+ */
@media (min-width: 1280px) {
    :root {
        --spacing-md: 24px;
        --spacing-lg: 32px;
    }

    .grid-4, .grid-cols-4 {
        grid-template-columns: repeat(4, 1fr);
    }

    .grid-5, .grid-cols-5 {
        grid-template-columns: repeat(5, 1fr);
    }

    .grid-6, .grid-cols-6 {
        grid-template-columns: repeat(6, 1fr);
    }
}

/* Large Desktop: 1920px+ */
@media (min-width: 1920px) {
    .container {
        max-width: 1400px;  /* Prevent excessive line length */
    }
}

/* Mobile-specific optimizations */
@media (max-width: 768px) {
    /* Larger touch targets on mobile */
    .btn, button {
        min-height: var(--min-touch-target-mobile);
        padding: 12px 20px;
    }

    /* Stack grids on mobile */
    .grid-2, .grid-cols-2,
    .grid-3, .grid-cols-3,
    .grid-4, .grid-cols-4,
    .grid-5, .grid-cols-5,
    .grid-6, .grid-cols-6 {
        grid-template-columns: 1fr;
    }

    /* Larger text on mobile for better readability */
    h1 {
        font-size: var(--font-size-xl);
    }
}


/* ============================================================================
 * FIN DEL SISTEMA DE DISEÑO SEBASDV
 * ============================================================================ */