/* ============================================= */
/* ESTILOS GENERALES - SERVI                     */
/* ============================================= */

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #e8e8e8;
    padding: 20px;
}

.container {
    max-width: 650px;
    margin: 0 auto;
    background: white;
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

h1 {
    font-size: 1.5rem;
    text-align: center;
    margin-bottom: 5px;
    color: #2c3e50;
}

.subtitulo {
    text-align: center;
    font-size: 0.75rem;
    color: #2c3e50;
    margin-bottom: 20px;
    border-bottom: 1px solid #ddd;
    padding-bottom: 10px;
}

/* ============================================= */
/* ACCESIBILIDAD                                 */
/* ============================================= */

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #0066B3;
    color: white;
    padding: 8px 16px;
    z-index: 100;
    text-decoration: none;
    font-weight: bold;
    border-radius: 0 0 8px 0;
    transition: top 0.2s;
}

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

/* Focus visible para navegación por teclado */
*:focus {
    outline: 3px solid #0066B3;
    outline-offset: 3px;
}

input:focus,
textarea:focus,
button:focus {
    outline: 3px solid #0066B3;
    outline-offset: 2px;
}

/* ============================================= */
/* SECCIONES                                     */
/* ============================================= */

.seccion {
    background: #f5f5f5;
    border-radius: 12px;
    padding: 14px;
    margin-bottom: 16px;
}

.seccion h3 {
    margin-bottom: 10px;
    color: #2c3e50;
    font-size: 0.9rem;
    border-left: 4px solid #0066B3;
    padding-left: 10px;
}

/* ============================================= */
/* CAMPOS DE ENTRADA                             */
/* ============================================= */

.campo {
    margin-bottom: 12px;
}

label {
    display: block;
    font-weight: 600;
    margin-bottom: 4px;
    font-size: 0.8rem;
    color: #2c3e50;
}

input,
textarea {
    width: 100%;
    padding: 10px 12px;
    font-size: 0.95rem;
    border: 1px solid #ccc;
    border-radius: 8px;
    background: white;
    font-family: inherit;
}

textarea {
    resize: vertical;
    min-height: 60px;
}

/* Placeholder accesible */
::placeholder            { color: #666; opacity: 1; }
:-ms-input-placeholder   { color: #666; }
::-ms-input-placeholder  { color: #666; }

.fila-2 {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.fila-2 .campo {
    flex: 1;
}

/* ============================================= */
/* RESULTADOS                                    */
/* ============================================= */

.resultados {
    margin-top: 20px;
    background: #ecf0f1;
    border-radius: 12px;
    padding: 14px;
}

.resultado-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 1rem;
}

.resultado-item:first-child {
    border-bottom: 1px solid #bdc3c7;
}

.titular {
    color: #2c3e50;
    font-weight: bold;
    font-size: 1rem;
}

.chofer {
    color: #2980b9;
    font-weight: bold;
    font-size: 1rem;
}

.total-numero {
    font-size: 1.1rem;
    font-weight: bold;
}

.estadistica {
    background: #fff8e1;
    border-radius: 8px;
    padding: 8px;
    margin-top: 10px;
}

.estadistica-item {
    display: flex;
    justify-content: space-between;
    padding: 5px 0;
    font-size: 0.8rem;
}

/* ============================================= */
/* BOTONERA                                      */
/* ============================================= */

.botonera {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin: 20px 0 16px;
}

.botonera button {
    flex: 1;
    padding: 12px;
    font-size: 0.9rem;
    font-weight: bold;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    background: #0066B3;
    color: white;
    font-family: inherit;
}

.botonera button:hover {
    background: #005A9C;
}

.botonera button:active {
    transform: scale(0.98);
    background: #004F8A;
}

/* DESGLOSE MEJORADO */
.detalle-operacion {
    font-family: monospace;
    font-size: 0.7rem;
    background: #f5f5f5;
    padding: 10px;
    border-radius: 8px;
    line-height: 1.4;
    color: #2c3e50;
}

/* ============================================= */
/* FOOTER                                        */
/* ============================================= */

.footer {
    margin-top: 20px;
    padding-top: 10px;
    text-align: center;
    font-size: 0.65rem;
    color: #2c3e50;
    border-top: 1px solid #ecf0f1;
}

.footer a {
    color: #2c3e50;
    text-decoration: none;
}

.footer a:hover {
    color: #0066B3;
    text-decoration: underline;
}

.code-symbol {
    color: #0066B3;
    font-weight: 600;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin: 15px 0;
}

.footer-links a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #7f8c8d;
    font-size: 13px;
    text-decoration: none;
}

.footer-links a:hover {
    color: #0066B3;
    text-decoration: underline;
}

.footer-copyright {
    margin-top: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    color: #95a5a6;
    font-size: 12px;
}

/* Badge gris para GitHub */
.badge-github {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #f5f5f5;
    border: 1px solid #e0e0e0;
    border-radius: 40px;
    padding: 6px 16px;
    font-size: 0.75rem;
    font-weight: 500;
    color: #2c3e50;
    text-decoration: none;
    transition: all 0.2s ease;
}

.badge-github svg {
    fill: #2c3e50;
    width: 16px;
    height: 16px;
    transition: fill 0.2s ease;
}

.badge-github:hover {
    background: #e0e0e0;
    border-color: #b0b0b0;
    color: #2c3e50;
}

.badge-github:hover svg {
    fill: #2c3e50;
}

/* ============================================= */
/* HEADER ROW                                    */
/* ============================================= */

.header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.header-row h1 {
    margin-bottom: 0;
    text-align: left;
}

#userInfo {
    text-align: right;
}

.btn-logout {
    background: none;
    color: #e74c3c;
    border: none;
    font-size: 0.7rem;
    cursor: pointer;
    padding: 2px 0;
}

/* ============================================= */
/* COMBUSTIBLE                                   */
/* ============================================= */

.combustible-row {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
}

.btn-add {
    width: 40px;
    flex-shrink: 0;
    background: #0066B3;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.2rem;
    cursor: pointer;
    line-height: 1;
}

.btn-add:hover {
    background: #005A9C;
}

.total-combustible {
    margin-top: 8px;
    font-size: 0.9rem;
    font-weight: bold;
    color: #0066B3;
}

/* ============================================= */
/* MODALES                                       */
/* ============================================= */

.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal[hidden] {
    display: none;
}

.modal-content {
    background: white;
    max-width: 400px;
    width: 90%;
    border-radius: 16px;
    padding: 20px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.modal-header h3 {
    margin: 0;
}

.btn-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
    color: #666;
}

.btn-close:hover {
    color: #333;
}

.btn-submit {
    width: 100%;
    padding: 12px;
    background: #0066B3;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    font-family: inherit;
    margin-top: 8px;
}

.btn-submit:hover {
    background: #005A9C;
}

.modal-link {
    text-align: center;
    margin-top: 12px;
    font-size: 0.85rem;
}

/* ============================================= */
/* RESPONSIVE                                    */
/* ============================================= */

@media (max-width: 500px) {
    .container {
        padding: 16px;
    }

    .total-numero {
        font-size: 1rem;
    }

    .botonera {
        flex-direction: column;
    }
}