/* ===== base.css ===== */
/* ===== VARIABLES ===== */
:root {
    /* Colores principales (Lila en vez de azul) */
    --color-primary: #8A2BE2;           /* Lila principal */
    --color-primary-dark: #4B0082;      /* Lila oscuro */
    --color-primary-light: #9B4DFF;     /* Lila claro */
    
    /* Escala de grises */
    --color-black: #000000;
    --color-gray-900: #1A1A1A;
    --color-gray-800: #333333;
    --color-gray-700: #4D4D4D;
    --color-gray-600: #666666;
    --color-gray-500: #808080;
    --color-gray-400: #999999;
    --color-gray-300: #B3B3B3;
    --color-gray-200: #CCCCCC;
    --color-gray-100: #E6E6E6;
    --color-gray-50: #F5F5F5;
    --color-white: #FFFFFF;
    
    /* Colores de texto */
    --color-text: var(--color-gray-800);
    --color-text-light: var(--color-gray-600);
    --color-text-lighter: var(--color-gray-500);
    
    /* Bordes */
    --color-border: var(--color-gray-200);
    --color-border-dark: var(--color-gray-300);
    
    /* Fondos */
    --color-bg: var(--color-white);
    --color-bg-light: var(--color-gray-50);
    --color-bg-dark: var(--color-gray-900);
    
    /* Estados */
    --color-hover: var(--color-gray-50);
    --color-active: var(--color-primary);
    --color-focus: rgba(138, 43, 226, 0.1);
    
    /* Tipografía */
    --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --font-family-heading: var(--font-family-base);
    
    /* Tamaños de fuente */
    --font-size-xs: 0.75rem;     /* 12px */
    --font-size-sm: 0.875rem;    /* 14px */
    --font-size-base: 1rem;      /* 16px */
    --font-size-lg: 1.125rem;    /* 18px */
    --font-size-xl: 1.25rem;     /* 20px */
    --font-size-2xl: 1.5rem;     /* 24px */
    --font-size-3xl: 1.875rem;   /* 30px */
    --font-size-4xl: 2.25rem;    /* 36px */
    
    /* Pesos de fuente */
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Espaciado */
    --spacing-1: 0.25rem;    /* 4px */
    --spacing-2: 0.5rem;     /* 8px */
    --spacing-3: 0.75rem;    /* 12px */
    --spacing-4: 1rem;       /* 16px */
    --spacing-6: 1.5rem;     /* 24px */
    --spacing-8: 2rem;       /* 32px */
    --spacing-12: 3rem;      /* 48px */
    --spacing-16: 4rem;      /* 64px */
    
    /* Bordes */
    --border-radius-sm: 2px;
    --border-radius-md: 4px;
    --border-radius-lg: 8px;
    --border-radius-xl: 12px;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    /* Transiciones */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: 1.5;
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    font-weight: var(--font-weight-normal);
    line-height: 1.2;
    color: var(--color-text);
    margin-bottom: var(--spacing-4);
}

h1 {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-light);
    letter-spacing: -0.02em;
}

h2 {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-light);
    letter-spacing: -0.01em;
}

h3 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-normal);
}

h4 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-normal);
}

p {
    margin-bottom: var(--spacing-4);
}

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

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

/* ===== UTILITY CLASSES ===== */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-2) var(--spacing-4);
    z-index: var(--z-popover);
    transition: top var(--transition-base);
}

.skip-link:focus {
    top: 0;
}

/* ===== ANNOUNCEMENT BAR ===== */
.announcement-bar {
    background-color: var(--color-gray-900);
    color: var(--color-white);
    padding: var(--spacing-2) 0;
    text-align: center;
    font-size: var(--font-size-sm);
}

.announcement-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

/* ===== MAIN CONTENT ===== */
.main-content {
    flex: 1;
    width: 100%;
    background-color: #f3f4f6;
}

/* ===== BUTTONS (Estilos básicos) ===== */
button {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    border: none;
    background: none;
    cursor: pointer;
}

/* ===== FORM ELEMENTS ===== */
input, select, textarea {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
}

/* ===== MEDIA QUERIES ===== */
@media (max-width: 768px) {
    :root {
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
        --font-size-2xl: 1.5rem;
        --font-size-xl: 1.125rem;
    }
    
    .container {
        padding: 0 var(--spacing-3);
    }
}

/* ===== PRINT STYLES ===== */
@media print {
    .skip-link,
    .announcement-bar,
    .main-header,
    .main-footer {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
    
    a {
        color: black;
        text-decoration: underline;
    }
}

/* ============================================ */
/* NUEVOS ESTILOS: MENSAJES FLASH Y ERRORES DE FORMULARIO */
/* ============================================ */

/* Contenedor de mensajes flash */
.messages-container {
    max-width: 1280px;
    margin: 1rem auto;
    padding: 0 var(--spacing-4);
    width: 100%;
}

/* Estilo base de alerta */
.alert {
    padding: var(--spacing-3) var(--spacing-4);
    margin-bottom: var(--spacing-4);
    border: 1px solid transparent;
    border-radius: var(--border-radius-md);
    position: relative;
    font-size: var(--font-size-sm);
    line-height: 1.5;
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
}

/* Alerta con botón de cierre */
.alert-dismissible {
    padding-right: 3rem;
}

.alert-dismissible .btn-close {
    position: absolute;
    top: 50%;
    right: var(--spacing-3);
    transform: translateY(-50%);
    background: transparent;
    border: none;
    font-size: 1.5rem;
    line-height: 1;
    color: inherit;
    cursor: pointer;
    opacity: 0.5;
    padding: 0;
    width: 1.5rem;
    height: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity var(--transition-fast);
}

.alert-dismissible .btn-close:hover {
    opacity: 1;
}

/* Variantes de alerta según el tag del mensaje */
.alert-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

.alert-error,
.alert-danger {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

.alert-warning {
    color: #856404;
    background-color: #fff3cd;
    border-color: #ffeeba;
}

.alert-info {
    color: #0c5460;
    background-color: #d1ecf1;
    border-color: #bee5eb;
}

/* Estilos para errores de formulario */
.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea {
    border-color: #dc3545;
}

.form-group.has-error input:focus,
.form-group.has-error select:focus,
.form-group.has-error textarea:focus {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25);
}

.errorlist {
    color: #dc3545;
    font-size: var(--font-size-xs);
    margin-top: var(--spacing-2);
    margin-bottom: 0;
    padding-left: 0;
    list-style: none;
}

.errorlist .help-block {
    display: block;
}

/* Checkbox styles (replaces Bootstrap form-check) */
.form-check {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 14px;
    margin-bottom: 8px;
    border-radius: 6px;
}

.form-check-input {
    width: 18px;
    height: 18px;
    accent-color: #8A2BE2;
    cursor: pointer;
    flex-shrink: 0;
    margin-top: 2px;
}

.form-check-label {
    cursor: pointer;
    font-size: 0.95rem;
    line-height: 1.4;
}

/* Para campos tipo checkbox con error */
.form-check.has-error .form-check-input {
    border-color: #dc3545;
}

.form-check.has-error .form-check-label {
    color: #dc3545;
}

/* Texto de ayuda */
.form-text.text-muted {
    font-size: var(--font-size-xs);
    color: var(--color-text-lighter) !important;
    margin-top: var(--spacing-2);
}

/* Errores globales del formulario (non-field-errors) */
.non-field-errors {
    margin-bottom: var(--spacing-4);
}

/* Responsive para mensajes flash */
@media (max-width: 768px) {
    .messages-container {
        padding: 0 var(--spacing-3);
    }
    
    .alert {
        padding: var(--spacing-2) var(--spacing-3);
        font-size: var(--font-size-xs);
    }
    
    .alert-dismissible {
        padding-right: 2.5rem;
    }
    
    .alert-dismissible .btn-close {
        right: var(--spacing-2);
        font-size: 1.25rem;
    }
}

@media (max-width: 640px) {
    .resp-grid-2col {
        grid-template-columns: 1fr !important;
    }
}

/* Mobile: show hamburger, hide desktop nav and user */
@media (max-width: 768px) {
    .header-nav {
        display: none !important;
    }
    #mobileMenuBtn {
        display: block !important;
    }
    .header-user {
        display: none !important;
    }
}
.mobile-nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.mobile-nav-list li {
    border-bottom: 1px solid #f3f4f6;
}
.mobile-nav-list li a {
    display: block;
    padding: 1rem 0;
    font-size: 1rem;
    font-weight: 600;
    color: #374151;
    text-decoration: none;
}
.mobile-nav-list li a:hover {
    color: #8A2BE2;
}

/* Mobile menu profile header */
.mobile-menu-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding-bottom: 1.25rem;
    margin-bottom: 0.5rem;
    border-bottom: 1px solid #e5e7eb;
}
.mobile-menu-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, #8A2BE2, #6a1fb0);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 700;
    overflow: hidden;
    flex-shrink: 0;
}
.mobile-menu-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.mobile-menu-name {
    font-size: 0.9375rem;
    font-weight: 700;
    color: #111827;
}
.mobile-menu-email {
    font-size: 0.75rem;
    color: #9ca3af;
}

/* Divider between sections */
.mobile-nav-divider {
    height: 1px;
    background: #e5e7eb;
    margin: 0.5rem 0;
    border: none;
    list-style: none;
}

/* Logout button styled as link */
.mobile-nav-logout {
    display: block;
    width: 100%;
    text-align: left;
    padding: 1rem 0;
    font-size: 1rem;
    font-weight: 600;
    color: #dc2626;
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

/* Login CTA */
.mobile-nav-cta {
    color: #8A2BE2 !important;
    background: #f3f0ff;
    border-radius: 8px;
    padding: 0.875rem 1rem !important;
    text-align: center;
    margin-top: 0.5rem;
}

/* Dashboard sidebar drawer on mobile */
@media (max-width: 768px) {
    .db-side {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        width: 280px !important;
        z-index: 300;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        max-height: 100vh !important;
    }
    .db-side.is-open {
        transform: translateX(0);
    }
    .db-sidebar-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.5);
        z-index: 299;
    }
    .db-sidebar-overlay.is-open {
        display: block;
    }
    .db-sidebar-toggle {
        display: flex !important;
    }
    .db-sidebar-close {
        display: block !important;
    }
}