@tailwind base;
@tailwind components;
@tailwind utilities;

/* ========================================
   SOLAR PLANNER PRO - MODERN DESIGN SYSTEM
   ======================================== */

/* === VARIABLES DE DISEÑO (Minimalista - Max 3 Colores Base) === */
:root {
    /* 1. Color Primario (Acción/Marca) - Indigo/Blue */
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-primary-light: #3b82f6;
    --color-primary-50: rgba(37, 99, 235, 0.1);

    /* 2. Color Neutro (Superficies/Textos/Bordes) - Slate */
    --bg-primary: #f8fafc;
    --bg-secondary: #f1f5f9;
    --bg-tertiary: #e2e8f0;
    
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-tertiary: #64748b;
    --text-inverse: #ffffff;
    --text-brand: #2563eb;

    --border-color: #cbd5e1;
    --border-color-hover: #94a3b8;
    --border-color-focus: #2563eb;

    /* 3. Color Superficie Base (Blanco) */
    --surface-elevated: #ffffff;
    --surface-overlay: rgba(255, 255, 255, 0.97);
    --surface-glass: rgba(255, 255, 255, 0.85);

    /* Colores semánticos reducidos al mínimo usando la paleta base cuando sea posible */
    --color-danger: #ef4444; /* Mantenido solo para errores críticos */
    --color-success: #2563eb; /* Unificado con primario para no introducir verde si no es vital */

    /* Radios de Borde */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-2xl: 1.5rem;

    /* Sombras - Elegantes */
    --shadow-xs: 0 1px 2px 0 rgb(15 23 42 / 0.04);
    --shadow-sm: 0 1px 3px 0 rgb(15 23 42 / 0.08), 0 1px 2px -1px rgb(15 23 42 / 0.08);
    --shadow-md: 0 4px 6px -1px rgb(15 23 42 / 0.08), 0 2px 4px -2px rgb(15 23 42 / 0.06);
    --shadow-lg: 0 10px 15px -3px rgb(15 23 42 / 0.08), 0 4px 6px -4px rgb(15 23 42 / 0.06);
    --shadow-xl: 0 20px 25px -5px rgb(15 23 42 / 0.1), 0 8px 10px -6px rgb(15 23 42 / 0.08);

    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Tipografía Unificada y Legible */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 0.9rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;

    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Transiciones */
    --transition-fast: 150ms ease-out;
    --transition-base: 200ms ease-out;
    --transition-slow: 300ms ease-out;

    /* Z-Index */
    --z-base: 1;
    --z-dropdown: 10;
    --z-sticky: 20;
    --z-fixed: 30;
    --z-modal-backdrop: 40;
    --z-modal: 50;
    --z-popover: 60;
    --z-tooltip: 70;
}

/* === RESET Y BASE === */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    overflow: hidden;
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    user-select: none;
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: background-color var(--transition-base), color var(--transition-base);
}

#canvas-container {
    width: 100vw;
    height: 100vh;
    background: var(--bg-secondary);
    transition: background-color var(--transition-base);
}

/* === BARRA SUPERIOR === */
.top-bar {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: var(--surface-elevated);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    z-index: var(--z-sticky);
    transition: all var(--transition-base);
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.app-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-lg);
    color: var(--text-primary);
}

.app-logo i {
    color: var(--color-primary);
}

.top-bar-center {
    display: flex;
    gap: var(--spacing-xs);
}

.tab-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    border-radius: var(--border-radius-md) var(--border-radius-md) 0 0;
}

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

.tab-btn.active {
    color: var(--color-primary);
    background: var(--bg-secondary);
    border-bottom-color: var(--color-primary);
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* === BOTONES DE ACCIÓN === */
.btn-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

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

.btn-primary {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: var(--text-inverse);
    border: none;
    border-radius: var(--border-radius-md);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn-primary:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
}

/* === TOOLBAR LATERAL === */
#toolbar-left {
    position: absolute;
    top: 80px;
    left: var(--spacing-lg);
    background: var(--surface-elevated);
    padding: 6px; /* Menos padding general */
    border-radius: var(--border-radius-lg);
    display: flex;
    flex-direction: column;
    gap: 2px; /* Menos espacio entre botones */
    box-shadow: var(--shadow-lg);
    z-index: var(--z-fixed);
    transition: all var(--transition-base);
    max-height: calc(100vh - 128px); /* 80px topbar + 48px barra inferior */
    overflow-y: auto;
    overflow-x: hidden;
}

/* Reducir los márgenes de los divisores (que en el HTML tienen my-1 = 4px) */
#toolbar-left > .my-1 {
    margin-top: 4px;
    margin-bottom: 4px;
}

#toolbar-left::-webkit-scrollbar {
    width: 4px;
}

#toolbar-left::-webkit-scrollbar-track {
    background: transparent;
}

#toolbar-left::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

.toolbar-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.toolbar-divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--spacing-xs) 0;
}

.tool-btn {
    width: 54px; /* Un poco más estrechos */
    min-height: 48px; /* Menos altura mínima */
    padding: 4px 2px; /* Menos padding interno */
    border-radius: var(--border-radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px; /* Menos espacio entre icono y texto */
    color: var(--text-secondary);
    background: transparent;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-fast);
    position: relative;
}

.tool-label {
    font-size: 9px;
    font-weight: 700;
    color: inherit;
    text-align: center;
    line-height: 1;
    pointer-events: none;
    white-space: nowrap;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    opacity: 0.8;
}

.tool-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    transform: scale(1.05);
}

.tool-btn.active {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(59, 130, 246, 0.1));
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.kbd-hint {
    position: absolute;
    right: 3px;
    top: 3px;
    font-size: 8px;
    color: var(--text-tertiary);
    font-weight: var(--font-weight-bold);
    pointer-events: none;
    background: var(--bg-primary);
    padding: 1px 3px;
    border-radius: 2px;
    line-height: 1;
}

/* === SIDEBAR DERECHO === */
#ui-sidebar {
    position: absolute;
    top: 80px;
    right: var(--spacing-lg);
    width: 340px;
    max-height: calc(100vh - 128px); /* 80px topbar + 48px barra inferior */
    overflow-y: auto;
    overflow-x: hidden;
    pointer-events: auto;
    overscroll-behavior: contain;
    z-index: var(--z-fixed);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: 2px;
}

/* === PESTAÑAS DEL SIDEBAR === */
.sidebar-tabs {
    display: flex;
    background: var(--surface-overlay);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xs);
    gap: var(--spacing-xs);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    margin-bottom: var(--spacing-xs);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 10;
}

.sidebar-tab-btn {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-xs);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    background: transparent;
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

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

.sidebar-tab-btn.active {
    color: var(--text-inverse);
    background: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.sidebar-tab-content {
    display: none;
}

.sidebar-tab-content.active {
    display: block;
}


#ui-sidebar::-webkit-scrollbar {
    width: 6px;
}

#ui-sidebar::-webkit-scrollbar-track {
    background: transparent;
}

#ui-sidebar::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

#ui-sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--border-color-hover);
}

.panel-box {
    background: var(--surface-overlay);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);

    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    pointer-events: auto;
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
    animation: slideInRight var(--transition-base) ease-out;
}

.panel-box:hover {
    box-shadow: var(--shadow-xl);
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* === STATS GRID MEJORADO === */
.stat-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.stat-item {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
    cursor: default;
}

.stat-item:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.stat-val {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: var(--font-weight-semibold);
}

/* === CONTROLES === */
.control-group {
    margin-bottom: var(--spacing-md);
}

.control-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.slider {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--bg-tertiary);
    outline: none;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: var(--shadow-md);
}

.slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    border: none;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
}

.slider::-moz-range-thumb:hover {
    transform: scale(1.2);
    box-shadow: var(--shadow-md);
}

/* === INPUTS === */
input[type="number"],
input[type="text"],
select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    font-family: var(--font-family);
    transition: all var(--transition-fast);
}

input[type="number"]:focus,
input[type="text"]:focus,
select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

input[type="number"]:hover,
input[type="text"]:hover,
select:hover {
    border-color: var(--border-color-hover);
}

/* === TOOLTIP DE MEDIDAS === */
#drawing-tooltip {
    position: absolute;
    background: rgba(15, 23, 42, 0.95);
    color: var(--text-inverse);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-sm);
    font-family: 'Consolas', 'Monaco', monospace;
    font-weight: var(--font-weight-semibold);
    pointer-events: none;
    display: none;
    z-index: var(--z-tooltip);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

/* === BARRA INFERIOR DE INFORMACIÓN === */
.bottom-info-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-sm) var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
    z-index: var(--z-fixed);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
    pointer-events: auto;
}

/* === HUD DE CONTROL DE CÁMARA === */
#camera-hud {
    background: transparent;
    color: white;
    padding: 0;
    border-radius: 0;
    font-size: var(--font-size-xs);
    pointer-events: none;
    display: none;
    z-index: auto;
    box-shadow: none;
    border: none;
    min-width: auto;
    flex: 0 0 auto;
}

#camera-hud.show {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.hud-title {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-xs);
    color: #60a5fa;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding-right: var(--spacing-sm);
    border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.hud-status {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: #fbbf24;
    margin: 0;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(251, 191, 36, 0.15);
    border-radius: var(--border-radius-sm);
    border: 1px solid rgba(251, 191, 36, 0.3);
}

.hud-help {
    font-size: var(--font-size-xs);
    color: #cbd5e1;
    line-height: 1.4;
    display: flex;
    gap: var(--spacing-md);
    margin: 0;
}

.hud-help div {
    margin: 0;
    white-space: nowrap;
}

.hud-help strong {
    color: #93c5fd;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* === PANEL DE INFORMACIÓN DEL PROYECTO === */
#env-info {
    background: transparent;
    color: var(--text-inverse);
    padding: 0;
    border-radius: 0;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: var(--font-size-xs);
    border: none;
    pointer-events: none;
    user-select: none;
    z-index: auto;
    box-shadow: none;
    min-width: auto;
    max-width: none;
    transition: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
}

.env-title {
    color: var(--color-secondary);
    font-weight: var(--font-weight-semibold);
    margin: 0;
    border-right: 1px solid rgba(255, 255, 255, 0.2);
    padding-right: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.env-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin: 0;
    white-space: nowrap;
}

.env-label {
    color: #94a3b8;
    font-weight: var(--font-weight-medium);
    margin-right: 2px;
}

.env-val {
    color: #38bdf8;
    font-weight: var(--font-weight-semibold);
}

.env-separator {
    width: 1px;
    height: 16px;
    background: rgba(255, 255, 255, 0.2);
    margin: 0 var(--spacing-xs);
}

/* === BADGES Y CHIPS === */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-primary {
    background: rgba(37, 99, 235, 0.1);
    color: var(--color-primary);
}

.badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--color-warning);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-danger);
}

/* === ESTADOS DE CURSOR === */
.cursor-draw {
    cursor: crosshair !important;
}

.cursor-grab {
    cursor: grab;
}

.cursor-grabbing {
    cursor: grabbing !important;
}

/* === INPUT FILE OCULTO === */
#fileInput {
    display: none;
}

/* === ANIMACIONES === */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.fade-in {
    animation: fadeIn var(--transition-base) ease-out;
}

.slide-in-up {
    animation: slideInUp var(--transition-base) ease-out;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {

    /* Layout General */
    #ui-sidebar {
        width: 100%;
        max-width: 320px;
        right: -340px;
        /* Oculto por defecto */
        height: calc(100vh - 70px);
        top: 60px;
        transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        pointer-events: auto;
        /* Para que funcione el scroll */
        gap: var(--spacing-xs);
        padding: 0;
    }

    #ui-sidebar.active {
        right: var(--spacing-md);
    }

    #toolbar-left {
        left: 0;
        bottom: 0;
        top: auto;
        width: 100%;
        flex-direction: row;
        border-radius: 0;
        padding: var(--spacing-sm);
        justify-content: space-around;
        background: var(--surface-elevated);
        border-top: 1px solid var(--border-color);
        box-shadow: 0 -4px 6px -1px rgb(0 0 0 / 0.1);
        z-index: 100;
        overflow-x: auto;
    }

    .toolbar-divider {
        width: 1px;
        height: 32px;
        margin: 0 var(--spacing-xs);
    }

    /* Top Bar Simplificada */
    .top-bar {
        padding: 0 var(--spacing-md);
        height: 56px;
    }

    .app-logo span {
        display: none;
        /* Ocultar texto logo en móvil */
    }

    .tab-btn span {
        display: none;
        /* Ocultar texto pestañas */
    }

    .tab-btn {
        padding: var(--spacing-sm);
    }

    /* Ocultar botones menos importantes de la barra superior */
    .top-bar-right .btn-icon:not(#menuToggle):not(#saveProjectBtn) {
        display: none;
    }

    /* Mostrar botón de menú */
    #menuToggle {
        display: flex !important;
    }

    /* Info Bar Inferior */
    /* Info Bar Inferior - ADAPTABLE */
    .bottom-info-bar {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
        padding: var(--spacing-xs) var(--spacing-md);
        height: auto;
        min-height: 40px;
        backdrop-filter: blur(8px);
    }

    #env-info {
        position: static;
        width: 100%;
        overflow-x: auto;
        padding-bottom: 2px;
        /* Hide separators on very small screens if needed */
    }

    #camera-hud {
        font-size: 0.70rem;
        /* Smaller text */
    }

    #camera-hud .hud-help {
        display: none;
        /* Hide help text on mobile to save space, keep status */
    }

    /* Ajustes Generales */
    .panel-box {
        padding: var(--spacing-md);
    }
}

/* === UTILIDADES === */
.text-center {
    text-align: center;
}

.flex {
    display: flex;
}

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

.items-center {
    align-items: center;
}

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

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

.gap-4 {
    gap: var(--spacing-md);
}

.mt-2 {
    margin-top: var(--spacing-sm);
}

.mt-4 {
    margin-top: var(--spacing-md);
}

.mb-2 {
    margin-bottom: var(--spacing-sm);
}

.mb-4 {
    margin-bottom: var(--spacing-md);
}

.p-2 {
    padding: var(--spacing-sm);
}

.p-4 {
    padding: var(--spacing-md);
}

.rounded {
    border-radius: var(--border-radius-md);
}

.rounded-lg {
    border-radius: var(--border-radius-lg);
}

.shadow {
    box-shadow: var(--shadow-md);
}

.shadow-lg {
    box-shadow: var(--shadow-lg);
}

/* === PANELES COLAPSABLES === */
.panel-box {
    background: var(--surface-overlay);
    margin-bottom: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    pointer-events: auto;
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
    animation: slideInRight var(--transition-base) ease-out;
    overflow: hidden;
}

.panel-header {
    padding: var(--spacing-md);
    cursor: pointer;
    user-select: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-fast);
}

.panel-header:hover {
    background: rgba(0, 0, 0, 0.03);
}

.panel-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
}

.panel-toggle {
    transition: transform var(--transition-fast);
}

.panel-toggle.collapsed {
    transform: rotate(-90deg);
}

.panel-content {
    padding: 0 var(--spacing-md) var(--spacing-md) var(--spacing-md);
    overflow: hidden;
    opacity: 1;
    /* max-height se gestiona vía JS (scrollHeight) para animación precisa */
}

.panel-content.collapsed {
    max-height: 0 !important;
    opacity: 0 !important;
    padding-top: 0 !important;
    padding-bottom: 0 !important;
}

/* === PANEL DE SELECCIÓN: sin scroll propio, el sidebar gestiona todo === */
#selectionPanel {
    overflow: visible;
}

/* === AJUSTE DE CONFORT VISUAL SIDEBAR DERECHO === */
#ui-sidebar .panel-box {
    background: rgba(255, 255, 255, 0.94);
    border-color: rgba(148, 163, 184, 0.32);
    box-shadow: 0 12px 24px -18px rgba(15, 23, 42, 0.5);
    margin-bottom: 0;
}

#ui-sidebar .panel-box:hover {
    box-shadow: 0 14px 28px -20px rgba(15, 23, 42, 0.55);
    transform: none;
}

#ui-sidebar .panel-header {
    padding: 10px 12px;
}

#ui-sidebar .panel-content {
    padding: 0 12px 10px 12px;
}

#ui-sidebar .stat-grid {
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

#ui-sidebar .stat-item {
    background: rgba(248, 250, 252, 0.9);
    padding: 12px;
}

#ui-sidebar .control-group {
    margin-bottom: 8px;
}

#ui-sidebar .control-label {
    font-size: 11px;
    color: #475569;
    margin-bottom: 6px;
}

#ui-sidebar h3 {
    line-height: 1.25;
}

/* === DENSIDAD COMPACTA: ARRAY + SIMULACIÓN === */
#selectionPanel {
    padding: 12px;
}

#selectionPanel h3 {
    margin-bottom: 8px;
    padding-bottom: 6px;
}

#panelControls .control-group,
#simulacionContent .control-group {
    margin-bottom: 8px;
}

#panelControls input[type="number"],
#panelControls input[type="text"],
#panelControls select,
#simulacionContent input[type="number"],
#simulacionContent input[type="text"],
#simulacionContent select {
    padding: 5px 8px;
    font-size: 12px;
}

#panelControls .slider,
#simulacionContent .slider {
    height: 4px;
}

#panelControls .slider::-webkit-slider-thumb,
#simulacionContent .slider::-webkit-slider-thumb {
    width: 14px;
    height: 14px;
}

#panelControls .slider::-moz-range-thumb,
#simulacionContent .slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
}

#panelControls #railList {
    max-height: 110px;
    padding: 6px;
}

#panelControls .text-xs,
#simulacionContent .text-xs {
    font-size: 11px;
}

#simulacionContent {
    display: grid;
    gap: 8px;
}

#simulacionContent #btnPlay {
    padding-top: 7px;
    padding-bottom: 7px;
}

/* === MODO COMPACTO SIDEBAR === */
#ui-sidebar .panel-secondary {
    display: none;
}

#ui-sidebar.sidebar-expanded .panel-secondary {
    display: block;
}

.sidebar-mode-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    pointer-events: auto;
    padding: 0 2px 6px 2px;
    gap: 8px;
}

.sidebar-mode-label {
    font-size: 10px;
    color: #94a3b8;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.sidebar-mode-toggle {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(148, 163, 184, 0.4);
    border-radius: 20px;
    font-size: 10px;
    font-weight: 700;
    color: #475569;
    cursor: pointer;
    transition: all 150ms ease;
    box-shadow: 0 1px 4px rgba(15, 23, 42, 0.08);
    white-space: nowrap;
    line-height: 1;
}

.sidebar-mode-toggle:hover {
    background: white;
    border-color: var(--color-primary);
    color: var(--color-primary);
}

#ui-sidebar.sidebar-expanded .sidebar-mode-toggle {
    background: rgba(99, 102, 241, 0.08);
    border-color: rgba(99, 102, 241, 0.4);
    color: var(--color-primary);
}

.alert-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    border-radius: 10px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    animation: pulse 2s infinite;
}

.alert-badge.warning {
    background: #f59e0b;
    color: white;
}

.alert-badge.danger {
    background: #ef4444;
    color: white;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.7;
    }
}

/* === SEGURIDAD Y PROTECCIÓN CONTRA COPIA === */
img,
a {
    -webkit-user-drag: none;
    user-drag: none;
    -webkit-touch-callout: none;
}

body {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* ========================================
   MEJORAS UX - INDICADORES Y FEEDBACK
   ======================================== */

/* === INDICADOR SEMÁFORO PARA PÉRDIDA POR SOMBRA === */
.loss-indicator {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.loss-indicator::before {
    content: '';
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    animation: pulse-glow 2s infinite;
}

.loss-indicator.loss-good::before {
    background: linear-gradient(135deg, #10b981, #34d399);
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.5);
}

.loss-indicator.loss-warning::before {
    background: linear-gradient(135deg, #f59e0b, #fbbf24);
    box-shadow: 0 0 8px rgba(245, 158, 11, 0.5);
}

.loss-indicator.loss-danger::before {
    background: linear-gradient(135deg, #ef4444, #f87171);
    box-shadow: 0 0 8px rgba(239, 68, 68, 0.5);
}

@keyframes pulse-glow {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.7;
        transform: scale(1.1);
    }
}

/* === TOOLTIPS MEJORADOS === */
[data-tooltip] {
    position: relative;
    cursor: help;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) scale(0.9);
    background: rgba(15, 23, 42, 0.95);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 500;
    white-space: nowrap;
    max-width: 200px;
    text-align: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: var(--z-tooltip);
    box-shadow: var(--shadow-lg);
    pointer-events: none;
}

[data-tooltip]:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) scale(1);
}

/* === BADGES PARA ACORDEONES === */
.accordion-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    height: 22px;
    padding: 0 6px;
    border-radius: 11px;
    font-size: 10px;
    font-weight: 700;
    background: rgba(99, 102, 241, 0.15);
    color: #6366f1;
    margin-left: auto;
    margin-right: 8px;
}

.accordion-badge.badge-purple {
    background: rgba(147, 51, 234, 0.15);
    color: #9333ea;
}

.accordion-badge.badge-green {
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
}

/* === MICRO-ANIMACIONES PARA VALORES === */
.value-updated {
    animation: value-flash 0.5s ease-out;
}

@keyframes value-flash {
    0% {
        background-color: rgba(59, 130, 246, 0.3);
        transform: scale(1.05);
    }

    100% {
        background-color: transparent;
        transform: scale(1);
    }
}

/* === MEJORAS EN SLIDERS === */
.slider:active::-webkit-slider-thumb {
    transform: scale(1.3);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.2);
}

.slider:focus {
    outline: none;
}

.slider:focus::-webkit-slider-thumb {
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.3);
}

/* === MEJORAS EN PANELES COLAPSABLES === */
.panel-header {
    position: relative;
}

.panel-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
    opacity: 0;
    transition: opacity 0.2s;
}

.panel-content.collapsed+.panel-header::after,
.panel-header:hover::after {
    opacity: 1;
}

/* === FEEDBACK VISUAL EN BOTONES === */
button:active:not(:disabled) {
    transform: scale(0.97);
}

.tool-btn:active {
    transform: scale(0.95);
}

/* === MEJORA INDICADOR DE ESTADO ACTIVO === */
.stat-item.highlight {
    border-color: var(--color-primary);
    background: rgba(37, 99, 235, 0.05);
}

/* === ANIMACIÓN PARA CAMBIOS DE VALOR === */
.stat-val {
    transition: color 0.3s ease, transform 0.2s ease;
}

.stat-val:hover {
    transform: scale(1.02);
}

/* ================================================================
   NORMALIZACIÓN TIPOGRÁFICA — 1 fuente · 2 tamaños · 2 colores
   Fuente : Inter (ya definida en body)
   Tamaños: --sz-sm  11px  → etiquetas, badges, hints
            --sz-base 13px → títulos, valores, inputs, botones
   Colores: --txt-base  #1e293b → texto principal
            --txt-muted #64748b → texto secundario / labels
   ================================================================ */
:root {
    --txt-base:  #1e293b;
    --txt-muted: #64748b;
    --sz-sm:     11px;
    --sz-base:   13px;
}

/* ── Sidebar: 2 colores de texto (iconos <i> quedan intactos) ── */
#ui-sidebar :is(
    .text-blue-400, .text-blue-500, .text-blue-600, .text-blue-700,
    .text-green-400, .text-green-500, .text-green-600, .text-green-700,
    .text-purple-400, .text-purple-500, .text-purple-600, .text-purple-700,
    .text-orange-400, .text-orange-500, .text-orange-600, .text-orange-700,
    .text-red-400, .text-red-500, .text-red-600,
    .text-teal-500, .text-teal-600,
    .text-yellow-500, .text-yellow-600,
    .text-gray-700, .text-gray-800, .text-gray-900
):not(i) {
    color: var(--txt-base) !important;
}

#ui-sidebar :is(
    .text-gray-300, .text-gray-400, .text-gray-500, .text-gray-600
):not(i) {
    color: var(--txt-muted) !important;
}

/* ── Sidebar: 2 tamaños de fuente ── */
/* pequeño: labels, sublabels, badges, hints */
#ui-sidebar :is(
    .control-label, label, .stat-label, .accordion-badge, .text-xs
) {
    font-size: var(--sz-sm) !important;
}
#ui-sidebar .text-\[10px\] { font-size: var(--sz-sm) !important; }
#ui-sidebar .text-\[11px\] { font-size: var(--sz-sm) !important; }

/* base: títulos, valores, inputs, botones, cualquier tamaño mayor */
#ui-sidebar :is(
    h3, .panel-title span, .stat-val,
    select, input, button,
    .text-sm, .text-base, .text-lg, .text-xl, .text-2xl,
    .font-bold.text-lg, .font-bold.text-xl, .font-bold.text-2xl
) {
    font-size: var(--sz-base) !important;
}

/* ── Barra inferior: uniformidad de texto ── */
.bottom-info-bar .env-label,
.bottom-info-bar .env-val,
.bottom-info-bar .env-row {
    font-size: var(--sz-sm);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
.bottom-info-bar .env-val { font-weight: 600; }

/* ── Toolbar izquierdo: fuente y tamaño uniformes ── */
#toolbar-left .kbd-hint {
    font-size: var(--sz-sm);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ================================================================
   PANEL KPI — RESUMEN DEL PROYECTO (siempre visible en sidebar)
   ================================================================ */
.panel-kpi-summary {
    padding: 10px 12px 12px 12px !important;
    background: linear-gradient(135deg, rgba(255,255,255,0.97) 0%, rgba(248,250,255,0.97) 100%) !important;
    border: 1px solid rgba(99, 102, 241, 0.18) !important;
    box-shadow: 0 2px 12px -4px rgba(79, 70, 229, 0.15) !important;
}

.kpi-header {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    font-weight: 700;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin-bottom: 10px;
}

.kpi-header i {
    color: var(--color-primary);
}

.kpi-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}

.kpi-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 8px 6px;
    border-radius: 8px;
    border: 1px solid transparent;
    gap: 2px;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.kpi-item:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px -2px rgba(0,0,0,0.08);
}

.kpi-val {
    font-size: 14px !important;
    font-weight: 800;
    line-height: 1.1;
    text-align: center;
    transition: color 0.3s ease;
}

.kpi-label {
    font-size: 9px !important;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    opacity: 0.8;
    text-align: center;
}

/* Variantes de color por KPI */
.kpi-blue  { background: rgba(59,130,246,0.06);  border-color: rgba(59,130,246,0.18); }
.kpi-blue  .kpi-val   { color: #2563eb; }
.kpi-blue  .kpi-label { color: #2563eb; }

.kpi-green { background: rgba(16,185,129,0.06);  border-color: rgba(16,185,129,0.18); }
.kpi-green .kpi-val   { color: #059669; }
.kpi-green .kpi-label { color: #059669; }

.kpi-orange { background: rgba(249,115,22,0.06);  border-color: rgba(249,115,22,0.18); }
.kpi-orange .kpi-val  { color: #ea580c; }
.kpi-orange .kpi-label{ color: #ea580c; }

.kpi-purple { background: rgba(139,92,246,0.06);  border-color: rgba(139,92,246,0.18); }
.kpi-purple .kpi-val  { color: #7c3aed; }
.kpi-purple .kpi-label{ color: #7c3aed; }

/* Modo oscuro */
[data-theme="dark"] .panel-kpi-summary {
    background: linear-gradient(135deg, rgba(30,41,59,0.97) 0%, rgba(17,24,39,0.97) 100%) !important;
    border-color: rgba(99,102,241,0.25) !important;
}
[data-theme="dark"] .kpi-blue   { background: rgba(59,130,246,0.12);  border-color: rgba(59,130,246,0.25); }
[data-theme="dark"] .kpi-green  { background: rgba(16,185,129,0.12);  border-color: rgba(16,185,129,0.25); }
[data-theme="dark"] .kpi-orange { background: rgba(249,115,22,0.12);  border-color: rgba(249,115,22,0.25); }
[data-theme="dark"] .kpi-purple { background: rgba(139,92,246,0.12);  border-color: rgba(139,92,246,0.25); }

/* Sobreescritura tipográfica: forzar 2 colores en panel KPI */
.panel-kpi-summary .kpi-val,
.panel-kpi-summary .kpi-label,
.panel-kpi-summary .kpi-header {
    color: inherit !important;
}

/* ================================================================
   ETIQUETAS DE SECCIÓN DEL SIDEBAR (separadores de flujo de trabajo)
   ================================================================ */
.sidebar-section-label {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 0 4px 4px 4px;
    font-size: 9px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-tertiary);
    pointer-events: none;
    user-select: none;
}

.sidebar-section-label i {
    opacity: 0.6;
    flex-shrink: 0;
}

.sidebar-section-label::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--border-color) 0%, transparent 100%);
    margin-left: 4px;
}

/* La etiqueta con clase panel-secondary se oculta en modo compacto */
#ui-sidebar .sidebar-section-label.panel-secondary {
    display: none;
}
#ui-sidebar.sidebar-expanded .sidebar-section-label.panel-secondary {
    display: flex;
}