:root {
    /* =========================================
       TEMA VIOLETA (Base) - MD3 Oficial
    ========================================= */
    --md-sys-color-primary: #6750A4;
    --md-sys-color-on-primary: #FFFFFF;
    --md-sys-color-primary-container: #EADDFF;
    --md-sys-color-on-primary-container: #21005D;
    --md-sys-color-tertiary: #00639B;
    --md-sys-color-on-tertiary: #FFFFFF;
    --md-sys-color-tertiary-container: #CDE5FF;
    --md-sys-color-on-tertiary-container: #001D32;
    --md-sys-color-secondary-container: #E8DEF8;
    --md-sys-color-on-secondary-container: #1D192B;
    --md-sys-color-error: #B3261E;
    --md-sys-color-error-container: #F9DEDC;
    --md-sys-color-on-error-container: #410E0B;
    --md-sys-color-surface: #FEF7FF;
    --md-sys-color-on-surface: #1D1B20;
    --md-sys-color-surface-container-low: #F7F2FB;
    --md-sys-color-surface-container: #F3EDF7;
    --md-sys-color-surface-container-high: #ECE6F0;
    --md-sys-color-surface-container-highest: #E6E0E9;
    --md-sys-color-outline: #79747E;
    /* ── TOKENS QUE FALTABAN (light violeta) ── */
    --md-sys-color-outline-variant: #CAC4D0;
    --md-sys-color-surface-variant: #E7E0EC;
    --md-sys-color-on-surface-variant: #49454F;
    font-family: 'Roboto', sans-serif;
    background-color: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    transition: background-color 0.4s ease, color 0.4s ease;
    margin: 0;
    padding: 0;
}
/* =========================================
   TEMA VERDE (Ecológico/Aprobado)
========================================= */
html[data-theme-accent="verde"] {
    --md-sys-color-primary: #386A20;
    --md-sys-color-primary-container: #B7F397;
    --md-sys-color-on-primary-container: #042100;
    /* Agregamos Terciario (Verde agua) */
    --md-sys-color-tertiary: #006B5E;
    --md-sys-color-tertiary-container: #76F8E2;
    --md-sys-color-on-tertiary-container: #00201C;
    --md-sys-color-secondary-container: #D3E8C9;
    --md-sys-color-on-secondary-container: #111F0A;
    --md-sys-color-surface: #FDFDF5;
    --md-sys-color-surface-container-low: #F7FAF1;
    --md-sys-color-surface-container: #EEF2E6;
    --md-sys-color-surface-container-high: #E8ECE1;
    --md-sys-color-surface-container-highest: #E2E6DA;
    /* ── TOKENS QUE FALTABAN (light verde) ── */
    --md-sys-color-outline-variant: #BEC9B4;
    --md-sys-color-surface-variant: #DDE5D4;
    --md-sys-color-on-surface-variant: #3F4A39;
}
/* =========================================
   TEMA NARANJA (Alerta/Cálido)
========================================= */
html[data-theme-accent="naranja"] {
    --md-sys-color-primary: #8F4C38;
    --md-sys-color-primary-container: #FFDBD1;
    --md-sys-color-on-primary-container: #3A0B01;
    /* Agregamos Terciario (Ámbar oscuro) */
    --md-sys-color-tertiary: #705D00;
    --md-sys-color-tertiary-container: #FFE16E;
    --md-sys-color-on-tertiary-container: #221B00;
    --md-sys-color-secondary-container: #F5DED8;
    --md-sys-color-on-secondary-container: #2C150F;
    --md-sys-color-surface: #FFF8F6;
    --md-sys-color-surface-container-low: #FFF3EF;
    --md-sys-color-surface-container: #FFEDE8;
    --md-sys-color-surface-container-high: #F8E7E2;
    --md-sys-color-surface-container-highest: #F4DFD9;
    /* ── TOKENS QUE FALTABAN (light naranja) ── */
    --md-sys-color-outline-variant: #D8C2BC;
    --md-sys-color-surface-variant: #EBDBD6;
    --md-sys-color-on-surface-variant: #4D3730;
}
/* =========================================
   MODO OSCURO (Tokens Invertidos y Mejorados)
========================================= */
html[data-theme="dark"] {
    --md-sys-color-primary: #D0BCFF;
    --md-sys-color-on-primary: #381E72;
    --md-sys-color-primary-container: #4F378B;
    --md-sys-color-on-primary-container: #EADDFF;
    /* Azul claro: Texto brillante sobre fondo oscuro */
    --md-sys-color-tertiary: #96CBFF;
    --md-sys-color-on-tertiary: #003353;
    --md-sys-color-tertiary-container: #004A76;
    --md-sys-color-on-tertiary-container: #CDE5FF;
    --md-sys-color-secondary-container: #4A4458;
    --md-sys-color-on-secondary-container: #E8DEF8;
    --md-sys-color-error: #F2B8B5;
    --md-sys-color-error-container: #8C1D18;
    --md-sys-color-on-error-container: #F9DEDC;
    --md-sys-color-surface: #141218;
    --md-sys-color-on-surface: #E6E0E9;
    --md-sys-color-surface-container-low: #1D1B20;
    --md-sys-color-surface-container: #211F26;
    --md-sys-color-surface-container-high: #2B2930;
    --md-sys-color-surface-container-highest: #36343B;
    --md-sys-color-outline: #CAC4D0;

    /* ── TOKENS QUE FALTABAN (dark violeta) ── */
    --md-sys-color-outline-variant: #49454F;
    --md-sys-color-surface-variant: #49454E;
    --md-sys-color-on-surface-variant: #CAC4D0;
}

html[data-theme="dark"][data-theme-accent="verde"] {
    --md-sys-color-primary: #9CD67D;
    --md-sys-color-primary-container: #205107;
    --md-sys-color-on-primary-container: #B7F397;

    /* Verde Agua brillante */
    --md-sys-color-tertiary: #57DBC5;
    --md-sys-color-tertiary-container: #005046;
    --md-sys-color-on-tertiary-container: #76F8E2;

    --md-sys-color-surface-container-low: #181D14;
    --md-sys-color-surface-container: #1E201B;
    --md-sys-color-surface-container-high: #282B24;
    --md-sys-color-surface-container-highest: #33352F;

    /* ── TOKENS QUE FALTABAN (dark verde) ── */
    --md-sys-color-outline-variant: #3F4A39;
    --md-sys-color-on-surface-variant: #BEC9B4;
}

html[data-theme="dark"][data-theme-accent="naranja"] {
    --md-sys-color-primary: #FFB59C;
    --md-sys-color-primary-container: #723523;
    --md-sys-color-on-primary-container: #FFDBD1;

    /* Ámbar brillante */
    --md-sys-color-tertiary: #E3C54A;
    --md-sys-color-tertiary-container: #554500;
    --md-sys-color-on-tertiary-container: #FFE16E;

    --md-sys-color-surface-container-low: #201815;
    --md-sys-color-surface-container: #271E1B;
    --md-sys-color-surface-container-high: #312724;
    --md-sys-color-surface-container-highest: #3D322F;

    /* ── TOKENS QUE FALTABAN (dark naranja) ── */
    --md-sys-color-outline-variant: #4D3730;
    --md-sys-color-on-surface-variant: #D8C2BC;
}

/* =========================================
   ESTRUCTURA DE LA PÁGINA Y COMPONENTES
========================================= */
body { margin: 0; min-height: 100vh; }

.pantallaCentrada {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.top-controls {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 12px;
    align-items: center;
    z-index: 10;
}

.md3-surface-container {
    background-color: var(--md-sys-color-surface-container);
    color: var(--md-sys-color-on-surface);
    border-radius: 28px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    box-shadow: 0px 4px 8px 3px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
}

.md3-title {
    font-size: 1.5rem;
    font-weight: 400;
    margin: 0;
    color: var(--md-sys-color-on-surface);
}

.role-selector {
    display: flex;
    gap: 8px;
    width: 100%;
    justify-content: center;
    margin-bottom: 8px;
}

.md3-form {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    width: 100%;
}

.md3-link {
    /* Aplicamos el color Terciario */
    color: var(--md-sys-color-tertiary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
}

.md3-link:hover { text-decoration: underline; }

.conexion-text {
    font-size: 0.75rem;
    color: var(--md-sys-color-outline);
    margin-top: 16px;
}

.conexion-text span {
    /* Aplicamos el color Terciario */
    color: var(--md-sys-color-tertiary);
    font-weight: bold;
}

.md3-native-select {
    background-color: transparent;
    color: var(--md-sys-color-on-surface);
    border: 1px solid var(--md-sys-color-outline);
    border-radius: 8px;
    padding: 8px 12px;
    font-family: inherit;
    font-size: 0.875rem;
    outline: none;
}

.md3-native-select:focus { border-color: var(--md-sys-color-primary); }

/* Ajustes de Diálogo MD3 */
md-dialog {
    --md-dialog-container-color: var(--md-sys-color-surface-container);
    --md-dialog-headline-color: var(--md-sys-color-on-surface);
    --md-dialog-supporting-text-color: var(--md-sys-color-on-surface);
}

md-dialog form {
    color: var(--md-sys-color-on-surface);
    font-family: 'Roboto', sans-serif;
}

/* =========================================
   TOP APP BAR & NAVIGATION DRAWER (MD3)
========================================= */
.md3-top-app-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 24px;
    background-color: var(--md-sys-color-surface-container);
    color: var(--md-sys-color-on-surface);
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    position: sticky;
    top: 0;
    z-index: 100;
}

.app-bar-start { display: flex; align-items: center; gap: 16px; }

/* Tipografía de la marca */
.app-brand { 
    display: flex; 
    align-items: center; 
    font-weight: 500; 
    font-size: 1.25rem; 
    color: var(--md-sys-color-on-surface); 
    letter-spacing: 0.1px;
}

.app-bar-end { display: flex; align-items: center; gap: 8px; }
.desktop-nav { display: flex; align-items: center; gap: 8px; }
.mobile-menu-btn { display: none; }

/* Estilos extra para los submenús de PC (Los que caen hacia abajo) */
md-menu {
    --md-menu-container-color: var(--md-sys-color-surface-container);
    --md-menu-container-shape: 16px;
    --md-menu-container-elevation: 0px 4px 12px rgba(0, 0, 0, 0.15);
    margin-top: 4px;
}

/* Efecto de fondo en las opciones del submenú */
md-menu-item {
    --md-menu-item-hover-state-layer-color: var(--md-sys-color-primary);
    --md-menu-item-hover-state-layer-opacity: 0.08;
    margin: 4px 8px;
    border-radius: 8px;
}

.user-chip {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: 24px;
    padding-left: 24px;
    border-left: 1px solid var(--md-sys-color-outline);
}

/* =========================================
   MENÚ LATERAL (Hamburguesa) - REDISEÑO ALTO CONTRASTE
========================================= */
.md3-drawer-scrim {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 200;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.md3-drawer-scrim.open { opacity: 1; pointer-events: auto; }

.md3-drawer {
    position: fixed;
    top: 0;
    left: -320px;
    width: 320px;
    height: 100vh;
    background-color: var(--md-sys-color-surface); 
    z-index: 201;
    transition: left 0.3s cubic-bezier(0.2, 0, 0, 1);
    display: flex;
    flex-direction: column;
    border-radius: 0 24px 24px 0;
    box-shadow: 4px 0 24px rgba(0,0,0,0.3);
}

html[data-theme="dark"] .md3-drawer {
    background-color: var(--md-sys-color-surface-container);
}

.md3-drawer.open { left: 0; }

.drawer-header {
    padding: 32px 24px 24px 24px;
    display: flex;
    flex-direction: column;
    background-color: transparent; 
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    margin-bottom: 8px;
}

.drawer-header-title {
    font-weight: 700; 
    font-size: 1.5rem; 
    color: var(--md-sys-color-primary); 
    letter-spacing: -0.5px;
}

.drawer-header-subtitle {
    font-size: 0.875rem; 
    color: var(--md-sys-color-on-surface); 
    opacity: 0.9; 
    margin-top: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.drawer-section-title {
    padding: 16px 24px 8px 24px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--md-sys-color-primary);
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

/* Botones del menú (MD3 Píldora) */
.md3-drawer md-list {
    padding: 12px;
}

.md3-drawer md-list-item {
    border-radius: 100px;
    margin-bottom: 4px;
    
    --md-list-item-label-text-color: var(--md-sys-color-on-surface);
    --md-list-item-leading-icon-color: var(--md-sys-color-on-surface);
    
    --md-list-item-hover-state-layer-color: var(--md-sys-color-primary);
    --md-list-item-hover-label-text-color: var(--md-sys-color-primary);
    --md-list-item-hover-leading-icon-color: var(--md-sys-color-primary);
}

/* =========================================
   MD3 CARDS & LAYOUT PRINCIPAL
========================================= */
.panel-content {
    padding: 32px 24px;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.md3-card {
    background-color: var(--md-sys-color-surface-container);
    color: var(--md-sys-color-on-surface);
    border-radius: 16px;
    padding: 24px;
    width: 100%;
    box-sizing: border-box;
    border: 1px solid var(--md-sys-color-outline-variant);
}

/* =========================================
   MD3 DATA TABLES (Tablas de inventario)
========================================= */
.md3-table-container {
    overflow-x: auto;
    border-radius: 8px;
    border: 1px solid var(--md-sys-color-outline-variant);
    margin-top: 16px;
}

.md3-table {
    width: 100%;
    border-collapse: collapse;
    font-family: 'Roboto', sans-serif;
    min-width: 800px; 
}

.md3-table th {
    text-align: left;
    padding: 16px;
    background-color: var(--md-sys-color-surface-container);
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    color: var(--md-sys-color-on-surface);
    font-weight: 500;
    font-size: 0.875rem;
}

.md3-table td {
    padding: 8px 16px;
    border-bottom: 1px solid var(--md-sys-color-surface-variant);
    vertical-align: middle;
}

.md3-table-input {
    width: 100%;
    min-width: 80px;
    box-sizing: border-box;
    background-color: var(--md-sys-color-surface-container-highest);
    border: none;
    border-bottom: 1px solid var(--md-sys-color-outline);
    color: var(--md-sys-color-on-surface);
    padding: 10px 12px;
    border-radius: 4px 4px 0 0;
    font-family: inherit;
    font-size: 0.9rem;
    outline: none;
    transition: all 0.2s ease;
}

.md3-table-input:focus {
    border-bottom: 2px solid var(--md-sys-color-primary);
    background-color: var(--md-sys-color-surface);
}

.md3-table-input[readonly] {
    background-color: transparent;
    border-bottom-style: dashed;
    color: var(--md-sys-color-on-surface-variant);
}

/* =========================================
   MD3 SNACKBAR (Notificaciones JS)
========================================= */
.md3-snackbar {
    position: fixed;
    bottom: -100px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-width: 300px;
    max-width: 600px;
    padding: 14px 16px;
    border-radius: 4px;
    background-color: #313033;
    color: #F4EFF4;
    font-family: 'Roboto', sans-serif;
    font-size: 0.875rem;
    z-index: 9999;
    box-shadow: 0px 4px 8px 3px rgba(0, 0, 0, 0.15);
    transition: bottom 0.4s cubic-bezier(0.2, 0, 0, 1);
}

.md3-snackbar.show { bottom: 24px; }
html[data-theme="dark"] .md3-snackbar { background-color: #E6E1E5; color: #313033; }

/* Grid para formularios */
.md3-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 16px; }
/* =========================================
   RESPONSIVIDAD (Ocultar menú PC y mostrar Hamburguesa)
========================================= */
@media screen and (max-width: 1024px) {
    .desktop-nav { display: none !important; }
    .mobile-menu-btn { display: inline-flex !important; }
    .md3-top-app-bar { padding: 12px 16px; }
}

/* =========================================
   RESPONSIVIDAD EXTREMA (Móviles pequeños y Textos Fluidos)
========================================= */
@media screen and (max-width: 600px) {
    .panel-content { padding: 24px 16px; }
    .md3-card { padding: 16px; border-radius: 12px; }
    
    /* 1. Ajuste del Menú Lateral para que no invada toda la pantalla */
    .md3-drawer {
        width: 85vw;
        max-width: 320px;
    }
    
    /* 2. Cabecera del menú más compacta */
    .drawer-header {
        padding: 24px 16px 16px 16px;
    }
    
    /* 3. Textos fluidos */
    .drawer-header span:first-child {
        font-size: clamp(1rem, 5vw, 1.25rem) !important;
    }
    
    /* 4. Cortar el nombre del usuario con "..." si es demasiado largo */
    .drawer-header span:last-child {
        font-size: 0.8rem !important;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        display: block;
        width: 100%;
    }

    /* 5. Títulos de sección más pequeños y discretos */
    .drawer-section-title {
        padding: 12px 16px 4px 16px;
        font-size: 0.75rem;
    }

    /* 6. Botones del menú (píldoras) más compactos */
    .md3-drawer md-list {
        padding: 8px;
    }
    
    .md3-drawer md-list-item {
        --md-list-item-label-text-size: 0.85rem;
        --md-list-item-leading-icon-size: 20px;
        margin-bottom: 2px;
    }

    /* 7. La tarjeta principal (Hero Card) también ajusta sus textos */
    .md3-hero-card h2 {
        font-size: clamp(1.5rem, 7vw, 2.25rem) !important;
    }
    .md3-hero-card p {
        font-size: 0.95rem !important;
    }
}
/* =========================================
   DASHBOARD CARDS (Inicio.php)
========================================= */
/* Tarjeta principal (Hero) con color Terciario */
.md3-hero-card {
    background: linear-gradient(135deg, var(--md-sys-color-tertiary-container) 0%, var(--md-sys-color-surface-container-highest) 100%);
    color: var(--md-sys-color-on-tertiary-container);
    border-radius: 28px;
    padding: 32px;
    width: 100%;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    gap: 16px;
    border: none;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    position: relative;
    overflow: hidden;
}

/* Efecto de "adorno" circular dentro de la Hero Card */
.md3-hero-card::after {
    content: '';
    position: absolute;
    right: -40px;
    top: -40px;
    width: 150px;
    height: 150px;
    background-color: var(--md-sys-color-tertiary);
    opacity: 0.1;
    border-radius: 50%;
    pointer-events: none;
}

/* Grid para las tarjetas pequeñas de acciones */
.md3-dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 24px;
}

/* Tarjetas interactivas de acciones rápidas */
.md3-action-card {
    background-color: var(--md-sys-color-surface-container);
    color: var(--md-sys-color-on-surface);
    border-radius: 20px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    border: 1px solid var(--md-sys-color-outline-variant);
    transition: all 0.3s cubic-bezier(0.2, 0, 0, 1);
    cursor: pointer;
    text-decoration: none;
}

/* Animación al pasar el mouse (Elevación MD3) */
.md3-action-card:hover {
    background-color: var(--md-sys-color-surface-container-highest);
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
    border-color: var(--md-sys-color-primary);
}

.action-card-icon {
    background-color: var(--md-sys-color-primary-container);
    color: var(--md-sys-color-on-primary-container);
    width: 48px;
    height: 48px;
    border-radius: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.action-card-icon md-icon { font-size: 28px; width: 28px; height: 28px; }
.action-card-title { font-size: 1.25rem; font-weight: 500; margin: 0; }
.action-card-desc { font-size: 0.875rem; color: var(--md-sys-color-on-surface-variant); margin: 0; line-height: 1.4; }

/* Efecto de entrada suave para todo el panel */
.panel-content {
    animation: fadeIn 0.5s ease-out;
}

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