/**
 * SupTracker — iOS 26 Glass Design System
 *
 * Archivo CSS principal del sistema de diseño glassmorphism.
 * Sigue estrictamente DESIGN.md para mantener consistencia visual.
 *
 * Secciones:
 * 1. CSS Variables (Design Tokens)
 * 2. Reset y Base
 * 3. Componentes Glass
 * 4. Layout y Utilidades
 * 5. Responsive
 * 6. Animaciones
 */

/* ============================================
   1. CSS VARIABLES (DESIGN TOKENS)
   ============================================ */

:root {
    /* --- 1.1 Colores iOS primarios --- */
    --color-primary:        #007AFF;    /* Azul iOS — botones principales, links, elementos activos */
    --color-primary-light:  #4DA3FF;    /* Hover sobre primary */
    --color-primary-dark:   #0055CC;    /* Active/pressed sobre primary */

    /* --- 1.2 Colores semánticos --- */
    --color-success:        #34C759;    /* Verde — toma completada, stock OK, en rango */
    --color-warning:        #FF9500;    /* Naranja — stock bajo, cerca del UL, fuera de rango bajo */
    --color-danger:         #FF3B30;    /* Rojo — error, stock agotado, supera UL, fuera de rango alto */
    --color-info:           #5AC8FA;    /* Azul claro — informativo, tips de absorción */

    /* --- 1.3 Grises iOS --- */
    --color-text-primary:   #1C1C1E;    /* Texto principal */
    --color-text-secondary: #636366;    /* Texto secundario, labels */
    --color-text-tertiary:  #AEAEB2;    /* Texto terciario, placeholders */
    --color-text-inverse:   #FFFFFF;    /* Texto sobre fondos oscuros/primary */

    /* --- 1.4 Glass backgrounds --- */
    --glass-bg:             rgba(255, 255, 255, 0.72);
    --glass-bg-hover:       rgba(255, 255, 255, 0.82);
    --glass-bg-active:      rgba(255, 255, 255, 0.60);
    --glass-bg-dark:        rgba(0, 0, 0, 0.25);         /* Para elementos sobre fondos claros */
    --glass-bg-input:       rgba(255, 255, 255, 0.50);
    --glass-bg-input-focus: rgba(255, 255, 255, 0.65);

    /* --- 1.5 Bordes glass --- */
    --glass-border:         rgba(255, 255, 255, 0.30);
    --glass-border-strong:  rgba(255, 255, 255, 0.50);
    --glass-border-subtle:  rgba(255, 255, 255, 0.15);

    /* --- 1.6 Fondo global (gradiente vibrante visible detrás de todo) --- */
    --bg-gradient-start:    #667EEA;    /* Violeta azulado */
    --bg-gradient-end:      #764BA2;    /* Púrpura */

    /* --- 1.7 Favoritos --- */
    --color-favorite:       #FFD60A;    /* Amarillo iOS — estrella de favorito */

    /* --- 1.8 Blur (backdrop-filter) --- */
    --glass-blur:           blur(20px);
    --glass-blur-light:     blur(12px);
    --glass-blur-heavy:     blur(30px);

    /* --- 1.9 Sombras --- */
    --shadow-sm:    0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md:    0 4px 12px rgba(0, 0, 0, 0.10);
    --shadow-lg:    0 8px 30px rgba(0, 0, 0, 0.12);
    --shadow-xl:    0 16px 48px rgba(0, 0, 0, 0.16);
    --shadow-inner: inset 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.10),
                    0 2px 8px rgba(0, 0, 0, 0.05);

    /* --- 1.10 Border Radius --- */
    --radius-xs:    6px;     /* Badges, pills pequeñas */
    --radius-sm:    8px;     /* Botones inline, tags */
    --radius-md:    12px;    /* Inputs, botones, items de lista */
    --radius-lg:    16px;    /* Cards, paneles */
    --radius-xl:    24px;    /* Modales, sheets */
    --radius-full:  9999px;  /* Pills, toggles, avatares */

    /* --- 1.11 Espaciado --- */
    --space-1:   4px;
    --space-2:   8px;
    --space-3:   12px;
    --space-4:   16px;
    --space-5:   20px;
    --space-6:   24px;
    --space-8:   32px;
    --space-10:  40px;
    --space-12:  48px;
    --space-16:  64px;

    /* --- 1.12 Tipografía --- */
    --font-family:     'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;

    /* Tamaños */
    --text-xs:    0.75rem;    /* 12px — badges, captions */
    --text-sm:    0.875rem;   /* 14px — labels, texto secundario */
    --text-base:  1rem;       /* 16px — texto base */
    --text-lg:    1.125rem;   /* 18px — subtítulos de sección */
    --text-xl:    1.25rem;    /* 20px — títulos de card */
    --text-2xl:   1.5rem;     /* 24px — títulos de página */
    --text-3xl:   2rem;       /* 32px — números grandes (% compliance, racha) */
    --text-4xl:   2.5rem;     /* 40px — número destacado del dashboard */

    /* Pesos */
    --font-normal:    400;
    --font-medium:    500;
    --font-semibold:  600;
    --font-bold:      700;

    /* Line heights */
    --leading-tight:  1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.75;

    /* --- 1.13 Transiciones --- */
    --transition-fast:    150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal:  250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow:    400ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring:  500ms cubic-bezier(0.175, 0.885, 0.32, 1.275);  /* Bounce sutil */

    /* --- 1.14 Z-Index Scale --- */
    --z-dropdown:   100;
    --z-sticky:     200;
    --z-sidebar:    300;
    --z-modal:      400;
    --z-toast:      500;
    --z-tooltip:    600;
    --z-impersonate: 700;   /* Barra de impersonación siempre visible */
}


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

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

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

body {
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    background-attachment: fixed;
    min-height: 100vh;
    font-family: var(--font-family);
    font-size: var(--text-base);
    color: var(--color-text-primary);
    line-height: var(--leading-normal);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
}

input, button, textarea, select {
    font: inherit;
}

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

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

/* Custom scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.15);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.25);
}


/* ============================================
   3. COMPONENTES GLASS
   ============================================ */

/* --- 3.1 Glass Card --- */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-glass);
    padding: var(--space-6);
    transition: all var(--transition-normal);
}

.glass-card:hover {
    background: var(--glass-bg-hover);
    box-shadow: var(--shadow-lg);
}

/* Variante compacta (para items de lista, checklist items) */
.glass-card--compact {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
}

/* Variante destacada (para alertas, digest semanal) */
.glass-card--highlight {
    border-left: 4px solid var(--color-primary);
}

/* Variante de advertencia */
.glass-card--warning {
    border-left: 4px solid var(--color-warning);
    background: rgba(255, 149, 0, 0.08);
}

/* Variante de peligro */
.glass-card--danger {
    border-left: 4px solid var(--color-danger);
    background: rgba(255, 59, 48, 0.08);
}


/* --- 3.2 Botones --- */
.glass-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    cursor: pointer;
    border: none;
    transition: all var(--transition-fast);
    min-height: 44px;   /* Touch target mínimo iOS */
    min-width: 44px;
    text-decoration: none;
}

/* Variantes de botón */
.glass-button--primary {
    background: var(--color-primary);
    color: var(--color-text-inverse);
}

.glass-button--primary:hover {
    background: var(--color-primary-light);
}

.glass-button--primary:active {
    background: var(--color-primary-dark);
    transform: scale(0.97);
}

.glass-button--secondary {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur-light);
    -webkit-backdrop-filter: var(--glass-blur-light);
    color: var(--color-primary);
    border: 1px solid var(--glass-border);
}

.glass-button--secondary:hover {
    background: var(--glass-bg-hover);
}

.glass-button--danger {
    background: var(--color-danger);
    color: var(--color-text-inverse);
}

.glass-button--danger:hover {
    background: #FF6B64;
}

.glass-button--ghost {
    background: transparent;
    color: var(--color-primary);
}

.glass-button--ghost:hover {
    background: rgba(0, 122, 255, 0.08);
}

/* Tamaños de botón */
.glass-button--sm {
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-xs);
    min-height: 36px;
}

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

/* Estados de botón */
.glass-button:disabled,
.glass-button.is-disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.glass-button.is-loading {
    pointer-events: none;
    opacity: 0.7;
}


/* --- 3.3 Inputs --- */
.glass-input {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: var(--glass-bg-input);
    backdrop-filter: var(--glass-blur-light);
    -webkit-backdrop-filter: var(--glass-blur-light);
    border: 1px solid var(--glass-border-subtle);
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: var(--text-base);
    color: var(--color-text-primary);
    transition: all var(--transition-fast);
    min-height: 44px;
}

.glass-input:focus {
    outline: none;
    background: var(--glass-bg-input-focus);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.15);
}

.glass-input::placeholder {
    color: var(--color-text-tertiary);
}

/* Input con error */
.glass-input.is-error {
    border-color: var(--color-danger);
    box-shadow: 0 0 0 3px rgba(255, 59, 48, 0.12);
}

/* Select estilizado */
.glass-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23636366' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-3) center;
    padding-right: var(--space-10);
}

/* Textarea */
.glass-textarea {
    min-height: 100px;
    resize: vertical;
}


/* --- 3.4 Toggle Switch (estilo iOS) --- */
.glass-toggle {
    position: relative;
    width: 52px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--color-text-tertiary);
    cursor: pointer;
    transition: background var(--transition-normal);
    flex-shrink: 0;
}

.glass-toggle::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: white;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal);
}

.glass-toggle.is-active {
    background: var(--color-success);
}

.glass-toggle.is-active::after {
    transform: translateX(20px);
}


/* --- 3.5 Navbar --- */
.glass-navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur-heavy);
    -webkit-backdrop-filter: var(--glass-blur-heavy);
    border-bottom: 1px solid var(--glass-border-subtle);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    padding: 0 var(--space-4);
    z-index: var(--z-sticky);
}


/* --- 3.6 Sidebar (desktop) --- */
.glass-sidebar {
    position: fixed;
    top: 56px;   /* debajo de navbar */
    left: 0;
    bottom: 0;
    width: 260px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-right: 1px solid var(--glass-border-subtle);
    padding: var(--space-4);
    overflow-y: auto;
    z-index: var(--z-sidebar);
    display: none;   /* hidden on mobile */
}

@media (min-width: 1024px) {
    .glass-sidebar {
        display: flex;
        flex-direction: column;
    }
}

/* Item de navegación del sidebar */
.glass-sidebar__item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-weight: var(--font-medium);
    font-size: var(--text-sm);
    transition: all var(--transition-fast);
    min-height: 44px;
    text-decoration: none;
}

.glass-sidebar__item:hover {
    background: rgba(0, 122, 255, 0.08);
    color: var(--color-primary);
}

.glass-sidebar__item.is-active {
    background: rgba(0, 122, 255, 0.12);
    color: var(--color-primary);
    font-weight: var(--font-semibold);
}


/* --- 3.7 Tab Bar (mobile) --- */
.glass-tabbar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur-heavy);
    -webkit-backdrop-filter: var(--glass-blur-heavy);
    border-top: 1px solid var(--glass-border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-around;
    padding-bottom: env(safe-area-inset-bottom);
    z-index: var(--z-sticky);
}

@media (min-width: 1024px) {
    .glass-tabbar {
        display: none;   /* hidden on desktop */
    }
}

.glass-tabbar__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    min-width: 44px;
    min-height: 44px;
    justify-content: center;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.glass-tabbar__item.is-active {
    color: var(--color-primary);
}


/* --- 3.8 Badge --- */
.glass-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-xs);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    line-height: 1;
}

.glass-badge--success {
    background: rgba(52, 199, 89, 0.15);
    color: var(--color-success);
}

.glass-badge--warning {
    background: rgba(255, 149, 0, 0.15);
    color: #CC7700;
}

.glass-badge--danger {
    background: rgba(255, 59, 48, 0.15);
    color: var(--color-danger);
}

.glass-badge--info {
    background: rgba(90, 200, 250, 0.15);
    color: #0891B2;
}

/* Badge numérico (notificaciones, conteo) */
.glass-badge--count {
    min-width: 20px;
    height: 20px;
    border-radius: var(--radius-full);
    background: var(--color-danger);
    color: white;
    font-size: 11px;
    padding: 0 6px;
    justify-content: center;
}


/* --- 3.9 Modal --- */
.glass-modal__overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.40);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
}

.glass-modal {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur-heavy);
    -webkit-backdrop-filter: var(--glass-blur-heavy);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    padding: var(--space-6);
}


/* --- 3.10 Toast (mensajes flash) --- */
.glass-toast {
    position: fixed;
    top: 72px;   /* debajo de navbar */
    right: var(--space-4);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: var(--space-3) var(--space-4);
    max-width: 400px;
    z-index: var(--z-toast);
    animation: slideInRight var(--transition-spring);
}

.glass-toast--success {
    border-left: 4px solid var(--color-success);
}

.glass-toast--warning {
    border-left: 4px solid var(--color-warning);
}

.glass-toast--danger {
    border-left: 4px solid var(--color-danger);
}

.glass-toast--info {
    border-left: 4px solid var(--color-info);
}


/* --- 3.11 Progress (barras y circulares) --- */
/* Barra de progreso */
.glass-progress {
    height: 8px;
    background: rgba(0, 0, 0, 0.06);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.glass-progress__bar {
    height: 100%;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    transition: width var(--transition-slow);
}

/* Indicador circular (para compliance del día) */
.glass-progress-ring {
    --size: 80px;
    --stroke: 6px;
    width: var(--size);
    height: var(--size);
}

.glass-progress-ring__circle {
    fill: none;
    stroke: rgba(0, 0, 0, 0.06);
}

.glass-progress-ring__progress {
    fill: none;
    stroke: var(--color-primary);
    stroke-linecap: round;
    transition: stroke-dashoffset var(--transition-slow);
}


/* --- 3.12 Tabla Glass --- */
.glass-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.glass-table th {
    text-align: left;
    padding: var(--space-3) var(--space-4);
    font-weight: var(--font-semibold);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--glass-border-subtle);
}

.glass-table td {
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.glass-table tr:hover td {
    background: rgba(0, 122, 255, 0.04);
}


/* --- 3.13 Form Group --- */
.glass-form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

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

.glass-form-group__error {
    font-size: var(--text-xs);
    color: var(--color-danger);
    margin-top: var(--space-1);
}

.glass-form-group__hint {
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
    margin-top: var(--space-1);
}


/* ============================================
   4. LAYOUT Y UTILIDADES
   ============================================ */

/* --- 4.1 Main Content Area --- */
.l-content {
    padding: calc(56px + var(--space-4)) var(--space-4) calc(56px + var(--space-4)) var(--space-4);
    min-height: 100vh;
}

@media (min-width: 1024px) {
    .l-content {
        margin-left: 260px;
        padding: calc(56px + var(--space-6)) var(--space-6) var(--space-6) var(--space-6);
    }
}


/* --- 4.2 Grid Layout --- */
.l-grid {
    display: grid;
    gap: var(--space-4);
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .l-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1280px) {
    .l-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Grid de 2 columnas fijo */
.l-grid--2 {
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .l-grid--2 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Grid de 4 columnas */
.l-grid--4 {
    grid-template-columns: repeat(2, 1fr);
}

@media (min-width: 768px) {
    .l-grid--4 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1280px) {
    .l-grid--4 {
        grid-template-columns: repeat(4, 1fr);
    }
}


/* --- 4.3 Flex Utilities --- */
.l-flex {
    display: flex;
    gap: var(--space-4);
}

.l-flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
}

.l-flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

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


/* --- 4.4 Spacing Utilities --- */
.u-mb-1 { margin-bottom: var(--space-1); }
.u-mb-2 { margin-bottom: var(--space-2); }
.u-mb-3 { margin-bottom: var(--space-3); }
.u-mb-4 { margin-bottom: var(--space-4); }
.u-mb-5 { margin-bottom: var(--space-5); }
.u-mb-6 { margin-bottom: var(--space-6); }
.u-mb-8 { margin-bottom: var(--space-8); }

.u-mt-1 { margin-top: var(--space-1); }
.u-mt-2 { margin-top: var(--space-2); }
.u-mt-3 { margin-top: var(--space-3); }
.u-mt-4 { margin-top: var(--space-4); }
.u-mt-5 { margin-top: var(--space-5); }
.u-mt-6 { margin-top: var(--space-6); }
.u-mt-8 { margin-top: var(--space-8); }


/* --- 4.5 Text Utilities --- */
.u-text-center { text-align: center; }
.u-text-right  { text-align: right; }
.u-text-left   { text-align: left; }

.u-text-xs   { font-size: var(--text-xs); }
.u-text-sm   { font-size: var(--text-sm); }
.u-text-base { font-size: var(--text-base); }
.u-text-lg   { font-size: var(--text-lg); }
.u-text-xl   { font-size: var(--text-xl); }
.u-text-2xl  { font-size: var(--text-2xl); }
.u-text-3xl  { font-size: var(--text-3xl); }
.u-text-4xl  { font-size: var(--text-4xl); }

.u-text-normal    { font-weight: var(--font-normal); }
.u-text-medium    { font-weight: var(--font-medium); }
.u-text-semibold  { font-weight: var(--font-semibold); }
.u-text-bold      { font-weight: var(--font-bold); }

.u-text-primary   { color: var(--color-text-primary); }
.u-text-secondary { color: var(--color-text-secondary); }
.u-text-tertiary  { color: var(--color-text-tertiary); }
.u-text-inverse   { color: var(--color-text-inverse); }

.u-color-primary  { color: var(--color-primary); }
.u-color-success  { color: var(--color-success); }
.u-color-warning  { color: var(--color-warning); }
.u-color-danger   { color: var(--color-danger); }
.u-color-info     { color: var(--color-info); }


/* --- 4.6 Width Utilities --- */
.u-w-full  { width: 100%; }
.u-w-auto  { width: auto; }


/* --- 4.7 Display Utilities --- */
.u-hidden { display: none; }

.u-hidden-mobile {
    display: none;
}

@media (min-width: 768px) {
    .u-hidden-mobile {
        display: block;
    }
}

.u-hidden-desktop {
    display: block;
}

@media (min-width: 1024px) {
    .u-hidden-desktop {
        display: none;
    }
}


/* ============================================
   5. RESPONSIVE
   ============================================ */

/* Safe area insets para dispositivos con notch */
@supports (padding: env(safe-area-inset-bottom)) {
    .glass-tabbar {
        padding-bottom: calc(env(safe-area-inset-bottom) + 8px);
        height: calc(56px + env(safe-area-inset-bottom));
    }

    .l-content {
        padding-bottom: calc(56px + var(--space-4) + env(safe-area-inset-bottom));
    }
}


/* ============================================
   6. ANIMACIONES
   ============================================ */

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

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

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

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Clase de animación de fade in */
.u-fade-in {
    animation: fadeIn var(--transition-normal);
}

/* Clase de animación de pulse */
.u-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Clase de animación de spin (para loading spinners) */
.u-spin {
    animation: spin 1s linear infinite;
}


/* ============================================
   7. INSTALLER COMPONENTS
   ============================================ */

/* Alerts for installer */
.glass-alert {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    line-height: var(--leading-normal);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
}

.glass-alert--success {
    background: rgba(52, 199, 89, 0.12);
    border-color: var(--color-success);
    color: var(--color-text-primary);
}

.glass-alert--warning {
    background: rgba(255, 149, 0, 0.12);
    border-color: var(--color-warning);
    color: var(--color-text-primary);
}

.glass-alert--danger {
    background: rgba(255, 59, 48, 0.12);
    border-color: var(--color-danger);
    color: var(--color-text-primary);
}

.glass-alert--info {
    background: rgba(90, 200, 250, 0.12);
    border-color: var(--color-info);
    color: var(--color-text-primary);
}

/* Typography helpers */
.glass-heading {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--color-text-primary);
    line-height: var(--leading-tight);
}

.glass-text-secondary {
    color: var(--color-text-secondary);
}

/* Spacing helpers */
.spacing-1 { --spacing-1: var(--space-1); }
.spacing-2 { --spacing-2: var(--space-2); }
.spacing-3 { --spacing-3: var(--space-3); }
.spacing-4 { --spacing-4: var(--space-4); }
.spacing-5 { --spacing-5: var(--space-5); }
.spacing-6 { --spacing-6: var(--space-6); }
.spacing-8 { --spacing-8: var(--space-8); }

/* Fallback for old variable names (installer layout uses these) */
:root {
    --spacing-1: var(--space-1);
    --spacing-2: var(--space-2);
    --spacing-3: var(--space-3);
    --spacing-4: var(--space-4);
    --spacing-5: var(--space-5);
    --spacing-6: var(--space-6);
    --spacing-8: var(--space-8);
    --spacing-10: var(--space-10);
    --spacing-12: var(--space-12);
    --spacing-16: var(--space-16);
    
    --text-primary: var(--color-text-primary);
    --text-secondary: var(--color-text-secondary);
    --text-tertiary: var(--color-text-tertiary);
    
    --radius-2xl: 32px;
}