:root {
    --primary-color: #2c3e50;
    --secondary-color: #34495e;
    --accent-color: #3498db;
    --success-color: #27ae60;
    --bg-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    --card-bg: rgba(255, 255, 255, 0.9);
    --text-color: #2c3e50;
    --border-radius: 12px;
    --box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
}

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-image: url('../imagenes/fondo.png');
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
    color: var(--text-color);
    line-height: 1.6;
    margin: 0;
    padding: 20px 20px 80px 20px;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    background: #ffffff;
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--box-shadow);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

header {
    text-align: center;
    margin-bottom: 40px;
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 20px;
}

header h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 2px;
}

header p {
    color: var(--secondary-color);
    font-weight: 300;
}

legend {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 20px;
    padding: 0 10px;
    border-left: 4px solid var(--accent-color);
}

fieldset {
    border: none;
    margin-bottom: 40px;
    padding: 0;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

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

.checkbox-group {
    align-items: center;
    text-align: center;
}

.radio-options {
    display: flex;
    justify-content: center;
    gap: 32px;
    align-items: center;
    width: 100%;
    margin-top: 10px;
    flex-wrap: wrap;
}

.radio-options label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 1rem;
    font-weight: normal;
    color: var(--text-main);
    margin-bottom: 0;
    cursor: pointer;
    user-select: none;
}

.radio-options input[type="radio"] {
    margin: 0;
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--accent-color);
}

.checkbox-options {
    display: flex;
    justify-content: flex-start;
    gap: 16px;
    align-items: center;
    width: 100%;
    margin-top: 8px;
    flex-wrap: wrap;
}

.checkbox-options label {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-main);
    background: #f8fafc;
    border: 1.5px solid #cbd5e1;
    border-radius: 8px;
    padding: 8px 18px;
    cursor: pointer;
    user-select: none;
    transition: all 0.2s ease;
}

.checkbox-options label:hover {
    background: #f1f5f9;
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.checkbox-options label:has(input[type="checkbox"]:checked) {
    background: #eff6ff;
    border-color: #2563eb;
    color: #1d4ed8;
    font-weight: 600;
    box-shadow: 0 1px 3px rgba(37, 99, 235, 0.15);
}

.checkbox-options input[type="checkbox"] {
    margin: 0;
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--secondary-color);
}

input[type="text"],
input[type="email"],
input[type="date"],
input[type="number"],
input[type="tel"],
select,
textarea {
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #fdfdfd;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.section-info {
    font-size: 0.85rem;
    color: #666;
    background: #e8f4fd;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid var(--accent-color);
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
    background: white;
    border-radius: 8px;
    overflow: hidden;
}

th,
td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

th {
    background: var(--primary-color);
    color: white;
    font-weight: 500;
}

.btn-container {
    text-align: center;
    margin-top: 50px;
}

button {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 15px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.4);
}

button:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.5);
}

/* Tab logic */
.tabs {
    display: none;
}

.tab-active {
    display: block;
    animation: fadeIn 0.5s ease;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tab-nav {
    position: -webkit-sticky;
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-left: -40px;
    margin-right: -40px;
    margin-bottom: 35px;
    padding: 14px 20px;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1.5px solid rgba(52, 152, 219, 0.25);
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.06);
    box-sizing: border-box;
    transition: all 0.2s ease;
}

.tab-btn {
    padding: 9px 18px;
    border: 1px solid var(--accent-color);
    background: #ffffff;
    color: var(--accent-color);
    border-radius: 20px;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.92rem;
    white-space: nowrap;
    transition: all 0.25s ease;
    user-select: none;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.tab-btn:hover {
    background: #ebf5fb;
    color: var(--accent-color);
}

.tab-btn.active {
    background: var(--accent-color);
    color: white;
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

@media (max-width: 768px) {
    .tab-nav {
        margin-left: -20px;
        margin-right: -20px;
        padding: 10px 12px;
        overflow-x: auto;
        justify-content: flex-start;
        -webkit-overflow-scrolling: touch;
        flex-wrap: nowrap;
    }

    .tab-btn {
        padding: 7px 14px;
        font-size: 0.85rem;
    }
}

.tab-btn:hover {
    background: #ebf5fb;
    color: #2980b9;
    border-color: #2980b9;
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(52, 152, 219, 0.2);
}

.tab-btn.active {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    box-shadow: 0 4px 14px rgba(52, 152, 219, 0.35);
}

.doc-checklist {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 10px;
    align-items: center;
    padding: 10px;
    border-bottom: 1px solid #eee;
}

.hidden {
    display: none !important;
}

/* Selector de Idioma (Español / English) - Mismo estilo de encuesta_satisfaccion */
.lang-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-bottom: 20px;
    z-index: 100;
}

.lang-buttons button {
    padding: 8px 22px;
    border: 1px solid #dcdfe6;
    border-radius: 50px;
    background-color: #ffffff;
    color: #555;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 14px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
    outline: none;
    -webkit-tap-highlight-color: transparent;
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.lang-buttons button:hover {
    border-color: var(--accent-color, #3498db);
    color: var(--accent-color, #3498db);
}

.lang-buttons button.active {
    background-color: var(--accent-color, #3498db);
    color: white;
    border-color: var(--accent-color, #3498db);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.25);
    transform: translateY(-1px);
}

.lang-buttons button:active {
    transform: scale(0.95);
}