/* --- Variables de Color y Tipografía --- */
:root {
    --color-primario: #D9232D;
    --color-texto: #333333;
    --color-fondo: #f4f4f9;
    --color-blanco: #ffffff;
    --color-borde: #dddddd;
    --sombra-suave: 0 4px 8px rgba(0,0,0,0.1);
    --fuente-principal: 'Roboto', sans-serif;
}

/* --- Reseteo y Estilos Globales --- */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: var(--fuente-principal);
    background-color: var(--color-fondo);
    color: var(--color-texto);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

/* --- Módulo de Login --- */
#login-module {
    background: var(--color-blanco);
    padding: 40px;
    border-radius: 8px;
    box-shadow: var(--sombra-suave);
    width: 100%;
    max-width: 400px;
    text-align: center;
}
#login-module h2 { margin-bottom: 24px; }

/* --- Contenedor Principal de la App --- */
#app-container {
    width: 100%;
    max-width: 1200px;
    height: 95vh;
    background: var(--color-blanco);
    border-radius: 8px;
    box-shadow: var(--sombra-suave);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 24px;
    background-color: var(--color-texto);
    color: var(--color-blanco);
    flex-shrink: 0;
}
.header-logo img {
    height: 40px;
}
header nav button {
    background: none;
    border: 1px solid transparent;
    color: var(--color-blanco);
    margin-left: 16px;
    padding: 8px 12px;
    font-size: 1rem;
    cursor: pointer;
    border-radius: 4px;
    transition: background-color 0.2s;
}
header nav button:hover { background-color: rgba(255, 255, 255, 0.1); }
header nav button.active { background-color: var(--color-primario); }
main { padding: 24px; overflow-y: auto; flex-grow: 1; }
section h2 {
    margin-bottom: 24px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--color-borde);
}

/* --- Estilos de Componentes (Botones, Inputs) --- */
input[type="email"], input[type="password"], input[type="date"], input[type="number"], input[type="time"], input[type="text"], select {
    width: 100%;
    padding: 10px;
    margin-bottom: 12px;
    border: 1px solid var(--color-borde);
    border-radius: 4px;
    font-size: 0.95rem;
}
button {
    padding: 10px 18px;
    font-size: 0.95rem;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
}
.btn-primario { background-color: var(--color-primario); color: var(--color-blanco); }
.btn-primario:hover { opacity: 0.9; box-shadow: 0 2px 4px rgba(0,0,0,0.2); }
.btn-secundario { background-color: #6c757d; color: white; }

/* --- Módulo de Registro (Diseño de Formulario) --- */
.controles-principales { display: flex; gap: 16px; align-items: center; margin-bottom: 24px; }
.controles-principales select { flex-grow: 1; }
.form-section {
    border: 1px solid var(--color-borde);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 24px;
}
.form-section h3 { color: var(--color-primario); margin-bottom: 16px; }
.form-grid .form-row { margin-bottom: 16px; }
.form-group { display: flex; align-items: center; gap: 10px; }
.form-group label { width: 220px; text-align: right; }
.form-group.obs-group { margin-top: 8px; }
.form-group.obs-group label { width: 220px; text-align: right; }
.obs-input { flex: 1; margin-bottom: 0; }
.form-actions { text-align: right; margin-top: 20px; }
.permisos-faltas-grid { display: grid; gap: 16px; }
.form-group-inline { display: flex; align-items: center; gap: 10px; }
.form-group-inline label { font-weight: 500; }
.form-group-inline input, .form-group-inline select { width: auto; flex-grow: 1; margin-bottom: 0; }
.form-group-inline button { flex-shrink: 0; }
.resumen-controles { display: flex; gap: 10px; align-items: center; margin-bottom: 20px; }
.resumen-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 16px; }
.valor-descontar { font-weight: bold; color: var(--color-primario); }

/* --- Reportes --- */
#reporte-resultado {
    margin-top: 24px;
    padding: 20px;
    border: 1px solid var(--color-borde);
    border-radius: 8px;
}
#reporte-titulo { margin-bottom: 16px; }
#reporte-contenido h4 {
    background-color: #f2f2f2;
    padding: 8px;
    border-left: 4px solid var(--color-primario);
    margin-top: 20px;
}
#reporte-contenido ul { list-style: none; padding-left: 5px; }
#reporte-contenido li { padding: 10px 0; border-bottom: 1px dotted #ccc; }
#reporte-contenido span { color: var(--color-primario); margin-right: 15px; font-weight: 500; }
.obs-reporte { font-size: 0.9em; color: #555; padding-left: 20px; margin-top: 5px; }

/* --- Dashboard --- */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 24px;
}
.dashboard-card {
    border: 1px solid var(--color-borde);
    border-radius: 8px;
    padding: 20px;
}
.dashboard-card h3 {
    margin-bottom: 16px;
    color: var(--color-primario);
}
#ranking-table { width: 100%; border-collapse: collapse; }
#ranking-table th, #ranking-table td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid var(--color-borde);
}
#ranking-table th { background-color: #f8f9fa; }

/* --- Modal --- */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex; justify-content: center; align-items: center; z-index: 1000;
}
.modal-content {
    background: white; padding: 24px; border-radius: 8px;
    width: 90%; max-width: 500px; box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}
.modal-content h3 { margin-bottom: 16px; }
.modal-acciones { margin-top: 24px; display: flex; justify-content: flex-end; gap: 16px; }