/* --- Variables de Color (Light Mode por defecto) --- */
:root {
    --primary-color: #007bff;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --bg-light: #f8f9fa;
    --bg-card: #fff;
    --text-color: #343a40;
    --border-color: #dee2e6;
    --input-bg: #fff;
    --fixed-input-bg: #f0f0f0;
}

/* --- Dark Mode Variables --- */
body.dark-mode {
    --primary-color: #22b41c; /* Color ajustado por el usuario */
    --success-color: #4CAF50;
    --danger-color: #e57373;
    --warning-color: #ffeb3b;
    --bg-light: #121212;
    --bg-card: #1e1e1e;
    --text-color: #e0e0e0;
    --border-color: #333;
    --input-bg: #2a2a2a;
    --fixed-input-bg: #333;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 20px;
    background-color: var(--bg-light);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
}

.titulo {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 30px;
    padding: 10px;
    font-weight: 300;
}

/* --- Estilos de Formulario de Encabezado y Sección de Logueo --- */
.header-form, .logging-section {
    background-color: var(--bg-card);
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
    transition: background-color 0.3s, box-shadow 0.3s;
}

.header-form h2, .logging-section h2 {
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
    margin-bottom: 20px;
    color: var(--text-color);
}

.header-data-container input {
    background-color: var(--input-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.header-data-container {
    display: flex;
    justify-content: space-between;
    gap: 30px;
}

.header-data-container > div {
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex-grow: 1;
}

.header-data-container input:focus {
    border-color: var(--primary-color);
    outline: none;
}


/* --- Estilos de Botones (Tema) --- */
.action-btn {
    padding: 10px 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s, transform 0.1s;
    color: white; 
}

.action-btn i {
    margin-right: 5px;
}

.action-btn:hover {
    transform: translateY(-1px);
}

.primary-btn { background-color: var(--primary-color); }
.primary-btn:hover { background-color: #0056b3; }
.edit-btn { background-color: var(--warning-color); color: #343a40; }
.edit-btn:hover { background-color: #e0a800; }
.delete-btn { background-color: var(--danger-color); }
.delete-btn:hover { background-color: #c82333; }
.clear-btn { background-color: #6c757d; }
.clear-btn:hover { background-color: #5a6268; }
.export-btn { background-color: var(--success-color); }
.export-btn:hover { background-color: #1e7e34; }
.theme-toggle-btn { background-color: #343a40; }
.theme-toggle-btn:hover { background-color: #212529; }
.select-btn { /* Nuevo estilo para botones dentro de inputs */
    background-color: #495057;
    color: white;
    padding: 8px 12px;
    border-radius: 0 4px 4px 0;
}
.select-btn:hover {
    background-color: #343a40;
}


.controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.footer-controls {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px dashed var(--border-color);
}

/* --- Estilos de la Tabla Resumen (Tema) --- */
.table-container {
    overflow-x: auto;
}

#rmrTable {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    background-color: var(--bg-card);
}

#rmrTable th, #rmrTable td {
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    text-align: center;
}

#rmrTable thead th {
    background-color: var(--border-color);
    color: var(--text-color);
    font-weight: 600;
    text-transform: uppercase;
}

#rmrTable tbody tr:nth-child(even) {
    background-color: var(--bg-light);
}

#rmrTable tbody tr:hover {
    background-color: #e2f0ff;
    cursor: pointer;
}

body.dark-mode #rmrTable tbody tr:hover {
    background-color: #2c3e50;
}

#rmrTable td:last-child {
    white-space: nowrap;
}


/* --- Estilos del Modal --- */
.modal {
    display: none; 
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5); 
    padding-top: 30px; 
}

.modal-content {
    background-color: var(--bg-card);
    margin: auto;
    padding: 20px; 
    border-radius: 10px;
    width: 90%;
    max-width: 1200px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    position: relative;
    animation: fadeIn 0.3s;
}

/* Ajuste específico para la submodal UCS */
#ucsModal .modal-content {
    max-width: 1100px; 
    padding: 15px;
}

/* Ajuste específico para la nueva submodal Espaciamiento */
#espaciamientoModal .modal-content {
    max-width: 700px; 
    padding: 15px;
}

@keyframes fadeIn {
    from {opacity: 0; transform: translateY(-20px);}
    to {opacity: 1; transform: translateY(0);}
}

.close-btn {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    top: 10px; 
    right: 20px; 
}

.close-btn:hover,
.close-btn:focus {
    color: #333;
    text-decoration: none;
}

body.dark-mode .close-btn:hover,
body.dark-mode .close-btn:focus {
    color: #fff;
}

/* --- ESTILOS PARA EL TÍTULO GIRADO Y CONTENEDOR FLEX --- */
.modal-form-container {
    display: flex;
    gap: 10px;
    align-items: flex-start; 
}

.modal-title-rotated {
    width: 30px; 
    height: 100%;
    display: flex;
    align-items: center; 
    justify-content: center;
    padding-top: 40px; 
    padding-bottom: 20px; 
}

.modal-title-rotated h3 {
    margin: 0;
    white-space: nowrap;
    transform: rotate(-90deg); 
    transform-origin: center;
    font-size: 1em;
    color: var(--primary-color);
    text-transform: uppercase;
    padding-right: 2rem;
}

#tramoForm {
    flex-grow: 1;
}

/* CONTENEDOR DE SECCIONES HORIZONTALES */
.horizontal-sections-container {
    display: flex;
    flex-wrap: wrap; 
    gap: 10px; 
    margin-bottom: 15px; 
}

/* ESTILOS DE LAS SECCIONES */
.form-section {
    flex: 1 1 200px; 
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 10px; 
    min-width: 200px; 
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.form-section h4 {
    margin-top: 0;
    margin-bottom: 10px; 
    color: var(--primary-color);
    border-bottom: 1px dotted var(--border-color);
    padding-bottom: 5px;
}

/* Estilos de inputs en el modal */
.input-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 8px; 
}

.input-group.full-width {
    flex-basis: 100%;
}

.input-group label {
    font-weight: 500;
    margin-bottom: 3px; 
    color: #555;
    font-size: 0.9em;
}

body.dark-mode .input-group label {
    color: #b0b0b0;
}

#tramoForm input[type="text"],
#tramoForm input[type="number"],
#tramoForm select, 
#tramoForm textarea {
    padding: 8px; 
    border: 1px solid var(--border-color);
    border-radius: 4px;
    transition: border-color 0.3s;
    background-color: var(--input-bg);
    color: var(--text-color);
}

#tramoForm input:focus,
#tramoForm select:focus,
#tramoForm textarea:focus {
    border-color: var(--primary-color);
    outline: none;
}

#tramoForm textarea {
    resize: vertical;
}

/* Input DE (m) Fijo */
#de_m:not(:focus) {
    background-color: var(--fixed-input-bg) !important;
    font-style: italic;
    cursor: not-allowed;
}

/* Contenedor de input + botón para UCS / Espaciamiento */
.input-with-button {
    display: flex;
}

.input-with-button input {
    flex-grow: 1;
    border-radius: 4px 0 0 4px !important;
    padding-right: 0 !important;
    text-align: center;
}

.input-with-button button {
    margin-left: -1px; /* Para que los bordes se toquen */
    white-space: nowrap;
}

.ucs-input-group label {
    text-align: center;
}

/* El grupo de Profundidad y Roca tiene más campos, se le da más espacio */
.rock-section {
    flex-basis: 300px;
}


/* Ajustes de columnas dentro de la sección */
.form-section > .input-group:not(.full-width) {
    flex-basis: 100%; 
}

/* El botón de guardar se mantiene a ancho completo */
#saveTramoBtn {
    width: 100%;
    margin-top: 10px; 
}

/* --- Estilos de la Tabla de Selección UCS/Espaciamiento --- */

.selection-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

.selection-table th, .selection-table td {
    padding: 8px 10px;
    border: 1px solid var(--border-color);
    text-align: left;
    vertical-align: top;
}

.selection-table th {
    background-color: var(--border-color);
    font-weight: 600;
}

.selection-table tbody tr:hover {
    background-color: #f0f8ff;
    cursor: pointer;
}
body.dark-mode .selection-table tbody tr:hover {
    background-color: #2c3e50;
}

.selection-table .select-cell {
    text-align: center;
    width: 10%;
}

.selection-table .select-cell .select-btn {
    padding: 5px 10px;
    background-color: var(--primary-color);
}
.selection-table .select-cell .select-btn:hover {
    background-color: #0056b3;
}


/* --- Estilos de Notificación Toast --- */
#toastContainer {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 2000;
}

.toast {
    background-color: #333;
    color: white;
    padding: 15px 20px;
    border-radius: 5px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    margin-top: 10px;
    opacity: 0;
    transition: opacity 0.4s, transform 0.4s;
    transform: translateX(100%);
    display: flex;
    align-items: center;
}

.toast.show {
    opacity: 1;
    transform: translateX(0);
}

.toast.success {
    background-color: var(--success-color);
}

.toast.error {
    background-color: var(--danger-color);
}

.toast i {
    margin-right: 10px;
}

/* Media Query para pantallas muy pequeñas (opcional, pero útil) */
@media (max-width: 768px) {
    .horizontal-sections-container {
        flex-direction: column;
    }

    .form-section {
        flex-basis: 100%;
    }
    
    /* El título girado no tiene sentido en móvil, lo ocultamos o lo ponemos normal */
    .modal-title-rotated {
        display: none; 
    }
}