/* ==============================================
   POSTULANDO DEMO - ESTILOS PRINCIPALES
   ============================================== */

:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --dark: #1f2937;
    --light: #f3f4f6;
    --white: #ffffff;
    --border: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 2rem 1rem;
}

/* ==============================================
   CONTENEDOR PRINCIPAL
   ============================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    padding: 2rem;
    margin-bottom: 2rem;
}

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

.header {
    text-align: center;
    margin-bottom: 3rem;
}

.header h1 {
    color: var(--white);
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.header p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
}

/* ==============================================
   TABS DE NAVEGACIÓN
   ============================================== */

.tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--border);
    flex-wrap: wrap;
}

.tab {
    padding: 1rem 1.5rem;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--dark);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.tab:hover {
    background: var(--light);
}

.tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==============================================
   FORMULARIOS
   ============================================== */

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

select.form-control {
    cursor: pointer;
    background-color: var(--white);
}

/* ==============================================
   ÁREA DE CAPTURA
   ============================================== */

.capture-area {
    border: 3px dashed var(--border);
    border-radius: 12px;
    padding: 3rem 2rem;
    text-align: center;
    background: var(--light);
    transition: all 0.3s ease;
    cursor: pointer;
}

.capture-area:hover {
    border-color: var(--primary);
    background: #e0e7ff;
}

.capture-area.active {
    border-color: var(--success);
    background: #d1fae5;
}

.camera-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.capture-area h3 {
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.capture-area p {
    color: #6b7280;
    margin-bottom: 1.5rem;
}

/* Input de archivo oculto */
#file-input {
    display: none;
}

/* ==============================================
   PREVIEW DE IMAGEN
   ============================================== */

.image-preview {
    margin-top: 2rem;
    display: none;
}

.image-preview.show {
    display: block;
}

.preview-container {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    max-width: 100%;
    margin: 0 auto;
}

.preview-container img {
    width: 100%;
    height: auto;
    display: block;
}

.preview-info {
    background: var(--white);
    padding: 1rem;
    margin-top: 1rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary);
}

.preview-info p {
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.preview-info strong {
    color: var(--primary);
}

/* ==============================================
   BOTONES
   ============================================== */

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

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

.btn-success:hover:not(:disabled) {
    background: #059669;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-danger {
    background: var(--danger);
    color: var(--white);
}

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.button-group {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

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

.result-box {
    background: #ecfdf5;
    border: 2px solid var(--success);
    border-radius: 12px;
    padding: 1.5rem;
    margin-top: 2rem;
}

.result-box h3 {
    color: var(--success);
    margin-bottom: 1rem;
}

.result-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem;
    background: var(--white);
    border-radius: 6px;
    margin-bottom: 0.5rem;
}

.result-item:last-child {
    margin-bottom: 0;
}

.result-label {
    font-weight: 600;
    color: var(--dark);
}

.result-value {
    color: var(--primary);
    font-weight: 700;
}

/* ==============================================
   TABLA DE RESULTADOS
   ============================================== */

.results-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.results-table th,
.results-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.results-table th {
    background: var(--dark);
    color: var(--white);
    font-weight: 600;
    position: sticky;
    top: 0;
}

.results-table tr:hover {
    background: var(--light);
}

.results-table td {
    color: var(--dark);
}

/* Badge de estado */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.875rem;
    font-weight: 600;
}

.badge-success {
    background: #d1fae5;
    color: #065f46;
}

.badge-pending {
    background: #fef3c7;
    color: #92400e;
}

.badge-error {
    background: #fee2e2;
    color: #991b1b;
}

/* ==============================================
   LOADING OVERLAY
   ============================================== */

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 5px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--white);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-text {
    color: var(--white);
    margin-top: 1rem;
    font-size: 1.2rem;
    font-weight: 600;
}

/* ==============================================
   ALERTAS
   ============================================== */

.alert {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.alert-success {
    background: #d1fae5;
    border: 1px solid var(--success);
    color: #065f46;
}

.alert-danger {
    background: #fee2e2;
    border: 1px solid var(--danger);
    color: #991b1b;
}

.alert-warning {
    background: #fef3c7;
    border: 1px solid var(--warning);
    color: #92400e;
}

/* ==============================================
   ESTADÍSTICAS
   ============================================== */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.stat-card {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.9;
}

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

@media (max-width: 768px) {
    body {
        padding: 1rem 0.5rem;
    }
    
    .header h1 {
        font-size: 1.75rem;
    }
    
    .card {
        padding: 1.5rem;
    }
    
    .tabs {
        flex-direction: column;
    }
    
    .tab {
        width: 100%;
        text-align: center;
    }
    
    .button-group {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .results-table {
        font-size: 0.875rem;
    }
    
    .results-table th,
    .results-table td {
        padding: 0.5rem;
    }
}

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

.text-center {
    text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.hidden {
    display: none !important;
}

.flex {
    display: flex;
}

.justify-between {
    justify-content: space-between;
}

.items-center {
    align-items: center;
}

.gap-2 {
    gap: 1rem;
}