/* ============================================================
   CONTACTO — formulario con feedback visual en tiempo real
   ============================================================ */

.contact-section { background: var(--paper); }

.contact-layout {
    display: grid;
    grid-template-columns: 1.2fr 0.9fr;
    gap: 56px;
    align-items: start;
}

.contact-header { margin-bottom: 36px; }

.contact-form-card {
    background: var(--paper-raised);
    border: 1px solid var(--border-on-paper);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.form-progress {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 28px;
    font-family: var(--font-mono);
    font-size: 0.76rem;
    color: var(--text-on-paper-dim);
}

.form-progress-track {
    flex: 1;
    height: 4px;
    background: var(--border-on-paper);
    border-radius: 2px;
    overflow: hidden;
}

.form-progress-fill {
    height: 100%;
    background: var(--copper);
    border-radius: 2px;
    width: 0%;
    transition: width 0.4s var(--ease), background 0.4s ease;
}

.form-progress-fill.complete {
    background: var(--mint-dim);
}

.field-group { margin-bottom: 20px; }

.field-label {
    display: block;
    font-family: var(--font-body);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--text-on-paper-muted);
    margin-bottom: 8px;
}

.field-input {
    width: 100%;
    padding: 13px 16px;
    background: var(--paper);
    border: 1.5px solid var(--border-on-paper);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--text-on-paper);
    transition: border-color var(--transition), box-shadow var(--transition), transform 0.15s var(--ease);
}

.field-input:focus {
    outline: none;
    border-color: var(--copper);
    box-shadow: 0 0 0 3px rgba(198, 106, 46, 0.12);
    transform: translateY(-1px);
}

.field-input.valid {
    border-color: var(--mint-dim);
    background: rgba(159, 184, 168, 0.04);
}

.field-input.invalid {
    border-color: #e06060;
    box-shadow: 0 0 0 3px rgba(224, 96, 96, 0.10);
}

.field-input::placeholder { color: var(--text-on-paper-dim); }

textarea.field-input { resize: vertical; min-height: 120px; }

select.field-input {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7' viewBox='0 0 12 7'%3E%3Cpath stroke='%23C66A2E' stroke-width='1.5' fill='none' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 38px;
}

/* Checkbox términos */
.field-checkbox-row {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin: 20px 0;
}

.field-checkbox-row input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 1px; height: 1px;
}

.checkbox-box {
    flex-shrink: 0;
    width: 19px;
    height: 19px;
    border: 1.5px solid var(--border-on-paper);
    border-radius: 4px;
    background: var(--paper);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.checkbox-box::after {
    content: '';
    width: 5px; height: 9px;
    border-right: 2px solid transparent;
    border-bottom: 2px solid transparent;
    transform: rotate(45deg) translateY(-1px);
    opacity: 0;
    transition: opacity 0.15s;
}

input[type="checkbox"]:checked + .checkbox-box {
    background: var(--copper);
    border-color: var(--copper);
}
input[type="checkbox"]:checked + .checkbox-box::after {
    border-color: var(--paper);
    opacity: 1;
}

.field-checkbox-row label.text {
    font-size: 0.88rem;
    color: var(--text-on-paper-muted);
    cursor: pointer;
}
.field-checkbox-row label.text a { color: var(--copper); text-decoration: underline; }

#submitBtn { width: 100%; padding: 15px; font-size: 0.96rem; }
#submitBtn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Aside contacto */
.contact-aside {
    display: flex;
    flex-direction: column;
    gap: 18px;
    position: sticky;
    top: 100px;
}

.contact-info-card {
    background: var(--ink);
    color: var(--text-on-ink);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.contact-info-card h3 { color: var(--text-on-ink); margin-bottom: 18px; }

.contact-info-row {
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding: 10px 0;
    border-top: 1px solid var(--border-on-ink);
    font-size: 0.92rem;
}
.contact-info-row:first-of-type { border-top: none; }

.contact-info-row .label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-on-ink-dim);
    width: 70px;
    flex-shrink: 0;
}

.contact-info-row .val { color: var(--text-on-ink); }

.whatsapp-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px;
    background: #1F8A4C;
    color: #fff;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.92rem;
    margin-top: 20px;
    transition: transform var(--transition), background var(--transition);
    position: relative;
}

.whatsapp-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-sm);
    border: 2px solid #1F8A4C;
    opacity: 0;
    animation: whatsappPulse 2.4s ease-out infinite;
}

@keyframes whatsappPulse {
    0%   { opacity: 0.5; transform: scale(1); }
    100% { opacity: 0; transform: scale(1.06); }
}

.whatsapp-cta:hover { background: #21A05A; transform: translateY(-2px); }

@media (max-width: 900px) {
    .contact-layout { grid-template-columns: 1fr; }
    .contact-aside { position: static; }
    .contact-form-card { padding: 26px; }
}