/* ===== VARIABLES ===== */
:root {
    --primary: #0A2A44;
    --primary-light: #1E3A5F;
    --primary-dark: #051E30;
    --accent: #C60B1E;
    --accent-light: #E31B2E;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --white: #FFFFFF;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* ===== BANNER LEGAL ===== */
.legal-banner {
    background-color: var(--primary);
    color: var(--white);
    text-align: center;
    padding: 0.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.3px;
    position: sticky;
    top: 0;
    z-index: 100;
}

/* ===== HEADER ===== */
.header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    padding: 2rem 0;
    border-bottom: 4px solid var(--accent);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.header h1 {
    font-size: 2rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
}

.header h2 {
    font-size: 1.25rem;
    font-weight: 400;
    opacity: 0.9;
    margin-bottom: 1rem;
}

.header-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    font-size: 0.875rem;
    opacity: 0.8;
}

/* ===== CONTAINER ===== */
.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
}

/* ===== FORM ===== */
.form-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.form-header {
    background-color: var(--gray-50);
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--gray-200);
}

.form-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.25rem;
}

.form-header p {
    color: var(--gray-500);
    font-size: 0.875rem;
}

.form-body {
    padding: 2rem;
}

/* ===== SECTIONS ===== */
.form-section {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--gray-200);
}

.form-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.section-icon {
    width: 32px;
    height: 32px;
    background-color: var(--primary);
    color: var(--white);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.section-title h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-800);
}

.section-title p {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-top: 0.25rem;
}

/* ===== GRID ===== */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
}

.form-control {
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-family: 'Inter', sans-serif;
    transition: all 0.2s ease;
    background-color: var(--white);
    width: 100%;
}

.form-control:hover {
    border-color: var(--gray-400);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(10, 42, 68, 0.1);
}

.form-control:disabled,
.form-control[readonly] {
    background-color: var(--gray-100);
    border-color: var(--gray-200);
    color: var(--gray-500);
    cursor: not-allowed;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23475569' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1rem;
    padding-right: 2.5rem;
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.field-note {
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-top: 0.25rem;
    font-style: italic;
}

/* ===== RADIO GROUP ===== */
.radio-group {
    display: flex;
    gap: 2rem;
    padding: 0.5rem 0;
}

.radio-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.95rem;
}

.radio-option input[type="radio"] {
    width: 1rem;
    height: 1rem;
    accent-color: var(--primary);
}

.radio-option input[type="checkbox"] {
    width: 1rem;
    height: 1rem;
    accent-color: var(--primary);
}

/* ===== INFO BOX ===== */
.info-box {
    background-color: var(--gray-50);
    border-left: 4px solid var(--primary);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    margin: 1rem 0;
    font-size: 0.95rem;
    color: var(--gray-700);
}

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

/* ===== CAPTCHA ===== */
.captcha-container {
    display: flex;
    justify-content: center;
    margin: 2rem 0;
}

/* ===== FILE UPLOAD ===== */
.upload-area {
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius-md);
    padding: 2rem;
    text-align: center;
    background-color: var(--gray-50);
    transition: all 0.2s ease;
    cursor: pointer;
}

.upload-area:hover {
    border-color: var(--primary);
    background-color: var(--gray-100);
}

.upload-area input[type="file"] {
    display: none;
}

.upload-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.upload-text {
    font-size: 1rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.upload-hint {
    font-size: 0.75rem;
    color: var(--gray-500);
}

.file-list {
    margin-top: 1rem;
}

.file-item {
    background-color: var(--gray-100);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 0.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
}

/* ===== PROVEEDOR SECTION ===== */
.proveedor-section {
    width: 100%;
    background-color: var(--gray-100);
    border-radius: var(--radius-md);
    padding: 2rem;
    margin: 2rem 0;
    position: relative;
    border: 1px solid var(--gray-300);
}

.proveedor-badge {
    position: absolute;
    top: -0.75rem;
    left: 1.5rem;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
    padding: 0.25rem 1.5rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-sm);
}

.proveedor-label {
    margin-top: 0.5rem;
    margin-bottom: 1rem;
}

.proveedor-label h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.25rem;
}

.proveedor-label p {
    font-size: 0.8rem;
    color: var(--gray-600);
}

.proveedor-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
    padding: 0.5rem 0;
    border-top: 1px dashed var(--gray-300);
}

.proveedor-indicator {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.indicator-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    background-color: var(--gray-400);
    border-radius: 50%;
}

.proveedor-tag {
    font-size: 0.7rem;
    color: var(--gray-400);
    background-color: var(--gray-200);
    padding: 0.2rem 0.75rem;
    border-radius: 30px;
}

.proveedor-note {
    margin-top: 1rem;
    font-size: 0.75rem;
    color: var(--gray-500);
    text-align: center;
    background-color: var(--gray-200);
    padding: 0.5rem;
    border-radius: 6px;
}

/* ===== LEGAL SECTION ===== */
.legal-section {
    background-color: var(--gray-100);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    margin: 2rem 0;
}

.legal-item {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: var(--gray-700);
}

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

.legal-bullet {
    color: var(--primary);
    font-weight: 600;
}

.legal-note {
    margin-top: 1.5rem;
    padding: 1rem;
    background-color: var(--white);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: var(--gray-600);
    border: 1px solid var(--gray-200);
}

/* ===== ACTIONS ===== */
.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-200);
}

.btn {
    padding: 0.75rem 2rem;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    font-family: 'Inter', sans-serif;
}

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

.btn-primary:hover {
    background-color: var(--primary-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
    background-color: var(--gray-50);
    border-color: var(--gray-400);
}

/* ===== ALERTS ===== */
.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.alert-error {
    background-color: #FEF2F2;
    border: 1px solid #FECACA;
    color: var(--error);
}

/* ===== FOOTER ===== */
.footer {
    background-color: var(--primary-dark);
    color: var(--white);
    padding: 3rem 0;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
}

.footer-info {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 1.5rem;
    font-size: 0.875rem;
    opacity: 0.8;
}

/* ===== INFO GRID ===== */
.info-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

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

.info-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.info-title {
    font-weight: 600;
    color: var(--primary);
}

.info-text {
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .radio-group {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .footer-info {
        flex-direction: column;
        gap: 1rem;
    }
    
    .info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .header-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
}