/* ============================================
   ESTILOS PARA EL FORMULARIO DE COMPROBANTES
   Tema oscuro — versión corregida
   ============================================ */

.wc-comprobantes-form-wrapper {
    max-width: 600px;
    margin: 20px 0;
    padding: 30px;
    background: #1e2d3d;
    border: 1px solid #2e4460;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.4);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: #e2e8f0;
}

.wc-comprobantes-form-wrapper h3 {
    margin-top: 0;
    margin-bottom: 25px;
    color: #ffffff;
    font-size: 26px;
    font-weight: 700;
    text-align: center;
    border-bottom: 2px solid #2e80b0;
    padding-bottom: 15px;
    position: relative;
}

.wc-comprobantes-form-wrapper h3:after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, #2e80b0, #63b3ed);
    border-radius: 2px;
}

/* ============================================
   GRUPOS DE FORMULARIO
   ============================================ */

.form-group {
    margin-bottom: 22px;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #cbd5e0;
    font-size: 14px;
}

.form-group input[type="number"],
.form-group input[type="email"],
.form-group input[type="text"],
.form-group input[type="file"],
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1.5px solid #2e4460;
    border-radius: 8px;
    font-size: 15px;
    transition: all 0.25s ease;
    box-sizing: border-box;
    background: #263549;
    color: #e2e8f0;
    font-family: inherit;
}

/* Placeholder visible pero diferenciado */
.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #718096;
    opacity: 1;
}

.form-group input[type="number"]:focus,
.form-group input[type="email"]:focus,
.form-group input[type="text"]:focus,
.form-group input[type="file"]:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #2e80b0;
    background: #2a3f56;
    color: #ffffff;
    box-shadow: 0 0 0 3px rgba(46,128,176,0.2);
}

/* Quitar flechas del input number en algunos navegadores */
.form-group input[type="number"]::-webkit-inner-spin-button,
.form-group input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
.form-group input[type="number"] {
    -moz-appearance: textfield;
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
    line-height: 1.5;
}

.form-group input[type="file"] {
    padding: 14px 16px;
    background: #263549;
    border-style: dashed;
    cursor: pointer;
    color: #a0aec0;
}

.form-group input[type="file"]:hover {
    border-color: #2e80b0;
    background: #2a3f56;
    color: #e2e8f0;
}

.form-group input[type="file"].drag-over {
    border-color: #63b3ed;
    background: #2a3f56;
    transform: scale(1.01);
}

.form-group small,
.form-group .help-text {
    display: block;
    margin-top: 6px;
    color: #718096;
    font-size: 12px;
    font-style: italic;
    line-height: 1.4;
}

/* ============================================
   ESTADOS DE VALIDACIÓN
   ============================================ */

.form-group input.error,
.form-group textarea.error {
    border-color: #e53e3e;
    background: #2d1f1f;
    box-shadow: 0 0 0 3px rgba(229,62,62,0.15);
}

.form-group input.success,
.form-group textarea.success {
    border-color: #38a169;
    background: #1f2d25;
    box-shadow: 0 0 0 3px rgba(56,161,105,0.15);
}

.field-message {
    display: block;
    margin-top: 5px;
    font-size: 12px;
    font-weight: 500;
}

.field-error {
    color: #fc8181;
}

.field-success {
    color: #68d391;
}

/* ============================================
   BOTÓN DE ENVÍO
   ============================================ */

.btn-submit {
    width: 100%;
    padding: 16px 25px;
    background: linear-gradient(135deg, #2e80b0 0%, #1a5f87 100%);
    color: #ffffff;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.25s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
}

.btn-submit:before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transition: left 0.5s;
}

.btn-submit:hover {
    background: linear-gradient(135deg, #3a9bd5 0%, #2271a3 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(46,128,176,0.4);
}

.btn-submit:hover:before {
    left: 100%;
}

.btn-submit:active {
    transform: translateY(0);
    box-shadow: none;
}

.btn-submit:disabled {
    background: #4a5568;
    color: #a0aec0;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================
   MENSAJES DE ESTADO
   ============================================ */

.upload-message {
    margin-top: 20px;
    padding: 16px 20px;
    border-radius: 8px;
    font-weight: 500;
    border-left: 4px solid;
    animation: slideDown 0.3s ease-out;
}

.upload-message.success {
    background: #1a3526;
    color: #68d391;
    border-left-color: #38a169;
}

.upload-message.error {
    background: #2d1f1f;
    color: #fc8181;
    border-left-color: #e53e3e;
}

.upload-message p {
    margin: 0;
    font-size: 14px;
}

/* ============================================
   BARRA DE PROGRESO
   ============================================ */

.upload-progress {
    text-align: center;
    padding: 16px;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: #2d3748;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #2e80b0, #63b3ed);
    border-radius: 10px;
    transition: width 0.3s ease;
    position: relative;
    overflow: hidden;
}

.progress-fill:after {
    content: '';
    position: absolute;
    top: 0; left: 0; bottom: 0; right: 0;
    background: linear-gradient(
        90deg,
        rgba(255,255,255,0.1) 25%, transparent 25%,
        transparent 50%, rgba(255,255,255,0.1) 50%,
        rgba(255,255,255,0.1) 75%, transparent 75%
    );
    background-size: 20px 20px;
    animation: progressStripes 1s linear infinite;
}

@keyframes progressStripes {
    0% { background-position: 0 0; }
    100% { background-position: 20px 0; }
}

.progress-text {
    font-size: 13px;
    color: #a0aec0;
    font-weight: 600;
}

/* ============================================
   PREVIEW DEL ARCHIVO
   ============================================ */

.file-preview {
    margin-top: 16px;
    padding: 18px;
    background: #263549;
    border: 1px solid #2e4460;
    border-radius: 8px;
    border-left: 4px solid #2e80b0;
}

.file-info p {
    margin: 6px 0;
    font-size: 13px;
    color: #e2e8f0;
}

.file-name {
    font-weight: 600;
    color: #e2e8f0;
    word-break: break-word;
}

.file-size {
    color: #a0aec0;
}

.file-warning {
    color: #f6c90e;
    background: #2d2712;
    border: 1px solid #6b5a10;
    padding: 8px 12px;
    border-radius: 4px;
    font-weight: 600;
    font-size: 13px;
}

.image-preview {
    margin-top: 12px;
    text-align: center;
}

.image-preview img {
    max-width: 100%;
    max-height: 200px;
    border: 2px solid #2e4460;
    border-radius: 8px;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.image-preview img:hover {
    transform: scale(1.04);
    border-color: #2e80b0;
}

.pdf-preview {
    margin-top: 12px;
    text-align: center;
    padding: 18px;
    background: #1e2d3d;
    border: 2px dashed #2e80b0;
    border-radius: 8px;
    color: #63b3ed;
    font-weight: 600;
}

/* ============================================
   ESTILOS PARA EL BACKEND (wp-admin)
   ============================================ */

.wp-admin .widefat .column-comprobante {
    width: 100px;
    text-align: center;
}

.wp-admin .column-comprobante img {
    width: 45px;
    height: 45px;
    object-fit: cover;
    border-radius: 6px;
    border: 2px solid #4a5568;
    transition: all 0.3s ease;
    cursor: pointer;
}

.wp-admin .column-comprobante img:hover {
    transform: scale(1.15);
    border-color: #2e80b0;
    box-shadow: 0 4px 12px rgba(46,128,176,0.3);
}

.comprobante-info {
    text-align: center;
    padding: 15px;
    background: #f9f9f9;
    border-radius: 8px;
}

.comprobante-preview img {
    max-width: 100%;
    height: auto;
    margin: 15px 0;
    border: 2px solid #ddd;
    border-radius: 8px;
}

.comprobante-download {
    margin: 20px 0;
}

.comprobante-download .button {
    width: 100%;
    text-align: center;
    padding: 12px 20px;
    font-weight: 600;
}

.wc-comprobantes-settings {
    background: #f8f9fa;
    padding: 25px;
    border: 1px solid #ddd;
    border-radius: 8px;
    margin: 20px 0;
    border-left: 4px solid #0073aa;
}

.wc-comprobantes-settings h2 {
    margin-top: 0;
    color: #0073aa;
    font-weight: 700;
}

/* ============================================
   ANIMACIONES
   ============================================ */

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-12px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60%  { transform: translateX(-5px); }
    40%, 80%  { transform: translateX(5px); }
}

.shake-error {
    animation: shake 0.5s ease-in-out;
}

@keyframes pulse {
    0%   { box-shadow: 0 0 0 0 rgba(46,128,176,0.4); }
    70%  { box-shadow: 0 0 0 8px rgba(46,128,176,0); }
    100% { box-shadow: 0 0 0 0 rgba(46,128,176,0); }
}

.btn-submit:focus {
    animation: pulse 0.6s ease-in-out;
}

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

@media (max-width: 768px) {
    .wc-comprobantes-form-wrapper {
        margin: 10px;
        padding: 20px;
        border-radius: 8px;
    }

    .wc-comprobantes-form-wrapper h3 {
        font-size: 20px;
        margin-bottom: 20px;
    }

    .form-group input[type="number"],
    .form-group input[type="email"],
    .form-group input[type="text"],
    .form-group input[type="file"],
    .form-group textarea {
        padding: 12px 14px;
        font-size: 16px; /* previene zoom en iOS */
    }

    .btn-submit {
        padding: 14px 20px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .wc-comprobantes-form-wrapper {
        padding: 15px;
        margin: 5px;
    }

    .form-group {
        margin-bottom: 18px;
    }
}

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

.form-group input:focus-visible,
.btn-submit:focus-visible {
    outline: 3px solid #63b3ed;
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============================================
   UTILIDADES
   ============================================ */

.sr-only {
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

.text-center { text-align: center; }
.mt-2 { margin-top: 0.5rem; }
.mb-2 { margin-bottom: 0.5rem; }

/* Tooltips */
.cbu-tooltip {
    background: #2d3748;
    color: #e2e8f0;
    padding: 5px 8px;
    border-radius: 4px;
    font-size: 11px;
    border: 1px solid #4a5568;
    position: relative;
    animation: fadeIn 0.3s ease;
}

.cbu-tooltip:before {
    content: '';
    position: absolute;
    top: -5px; left: 10px;
    width: 0; height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-bottom: 5px solid #2d3748;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ============================================
   FIN DE ESTILOS
   ============================================ */