/* ===== RESET BÁSICO ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: radial-gradient(circle at top, #eff6ff 0, #e5e7eb 35%, #f3f4f6 100%);
    color: #111827;
}

/* ===== LAYOUT GENERAL ===== */
.page-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 32px 16px;
}

.container {
    width: 100%;
    max-width: 1120px;
    background: #ffffff;
    border-radius: 20px;
    box-shadow:
        0 18px 40px rgba(15, 23, 42, 0.18),
        0 0 0 1px rgba(148, 163, 184, 0.24);
    padding: 28px 32px 26px;
}

/* ===== CABECERA ===== */
.header {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 24px;
    border-bottom: 1px solid #e5e7eb;
    padding-bottom: 12px;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
}

h1 {
    margin: 0;
    font-size: 1.7rem;
    letter-spacing: -0.02em;
}

.badge {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 4px 10px;
    border-radius: 999px;
    background: #eff6ff;
    color: #1d4ed8;
    font-weight: 600;
}

.subtitle {
    margin: 0;
    color: #6b7280;
    font-size: 0.85rem;
}

/* ===== SECCIONES ===== */
.section-card {
    background: #f9fafb;
    border-radius: 16px;
    padding: 18px 18px 14px;
    margin-bottom: 16px;
    border: 1px solid #e5e7eb;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 12px;
}

.section-title {
    font-size: 1.02rem;
    font-weight: 600;
    color: #111827;
}

.section-subtitle {
    font-size: 0.78rem;
    color: #9ca3af;
}

/* ===== GRID CAMPOS ===== */
.form-grid {
    display: grid;
    gap: 12px 16px;
}

.form-grid.cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.form-grid.cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.form-grid.cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

/* Responsive: pasamos a 1 columna en pantallas pequeñas */
@media (max-width: 960px) {
    .container {
        padding: 20px 16px 18px;
        border-radius: 0;
        box-shadow: none;
    }
    .form-grid,
    .form-grid.cols-2,
    .form-grid.cols-3,
    .form-grid.cols-4 {
        grid-template-columns: 1fr;
    }
}

/* ===== CAMPOS ===== */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.form-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: #374151;
}

.form-group label span.req {
    color: #dc2626;
    margin-left: 2px;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
input[type="date"],
textarea,
select {
    padding: 8px 10px;
    border-radius: 10px;
    border: 1px solid #d1d5db;
    background-color: #f9fafb;
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, transform 0.05s ease;
}

input:focus,
textarea:focus,
select:focus {
    border-color: #2563eb;
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.18);
    background-color: #ffffff;
}

input::placeholder,
textarea::placeholder {
    color: #9ca3af;
}

textarea {
    resize: vertical;
    min-height: 80px;
}

/* ===== RADIO & CHECKBOX ===== */
.radio-row {
    display: flex;
    gap: 18px;
    margin-top: 4px;
    font-size: 0.85rem;
    color: #4b5563;
}

.radio-row label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 500;
}

.checkbox-inline {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 0.8rem;
    color: #4b5563;
}

.checkbox-inline input {
    margin-top: 2px;
}

/* ===== PIE DEL FORMULARIO ===== */
.form-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed #e5e7eb;
}

.helper-text {
    font-size: 0.78rem;
    color: #6b7280;
}

/* ===== BOTÓN ===== */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 22px;
    border-radius: 999px;
    border: none;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: #f9fafb;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 14px 28px rgba(37, 99, 235, 0.45);
    transition: transform 0.08s ease, box-shadow 0.12s ease, filter 0.12s ease;
    white-space: nowrap;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 18px 40px rgba(37, 99, 235, 0.52);
    filter: brightness(1.03);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 8px 18px rgba(37, 99, 235, 0.45);
}

/* ===== MODAL ===== */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.55);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 40;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: #ffffff;
    border-radius: 18px;
    padding: 22px 24px 18px;
    max-width: 420px;
    width: 90%;
    text-align: center;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.3);
}

.modal-content h3 {
    margin: 0 0 6px;
    font-size: 1.2rem;
}

.modal-content p {
    margin: 0 0 14px;
    font-size: 0.9rem;
    color: #4b5563;
}

/* ===== ERRORES (JS) ===== */
.error {
    border-color: #dc2626 !important;
    box-shadow: 0 0 0 1px rgba(239, 68, 68, 0.25);
    background-color: #fef2f2;
}

.error-message {
    font-size: 0.73rem;
    color: #dc2626;
}