/* ---------- Buttons ---------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: calc(0.667em + 2px) calc(1.333em + 2px);
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.2;
    border: 1px solid transparent;
    border-radius: var(--radius-pill);
    cursor: pointer;
    text-decoration: none;
    transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease, transform 80ms ease;
}

.btn:active { transform: translateY(1px); }

.btn:focus-visible {
    outline: none;
    box-shadow: var(--shadow-focus-ring);
}

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

.btn--primary:hover {
    background: var(--color-primary-hover);
    color: #fff;
}

.btn--secondary {
    background: var(--color-surface-alt);
    color: var(--brand-nude);
}

.btn--secondary:hover {
    background: var(--brand-blue);
    color: #fff;
}

.btn--ghost {
    background: transparent;
    color: var(--color-text-strong);
    border-color: var(--color-border-strong);
}

.btn--ghost:hover {
    background: var(--color-surface-alt);
    color: var(--color-text-strong);
}

.btn--block {
    width: 100%;
}

.btn--sm {
    padding: 0.45em 1em;
    font-size: 0.9rem;
}

/* ---------- Forms ---------- */

.form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.form__row {
    display: grid;
    gap: var(--space-md);
}

.form__row--2col {
    grid-template-columns: 1fr;
}

@media (min-width: 640px) {
    .form__row--2col {
        grid-template-columns: 1fr 1fr;
    }
}

.form__field {
    display: flex;
    flex-direction: column;
    gap: var(--space-2xs);
}

.form__label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text);
}

.form__input {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    font-family: inherit;
    font-size: var(--font-size-base);
    color: var(--color-text);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color 120ms ease, box-shadow 120ms ease;
    appearance: none;
}

.form__input::placeholder {
    color: var(--color-text-soft);
}

.form__input:focus {
    outline: none;
    border-color: var(--brand-blue);
    box-shadow: var(--shadow-focus-ring);
}

.form__input:disabled {
    background: var(--color-surface-alt);
    color: var(--color-text-soft);
    cursor: not-allowed;
}

select.form__input {
    background-image: linear-gradient(45deg, transparent 50%, var(--color-text-muted) 50%),
                      linear-gradient(135deg, var(--color-text-muted) 50%, transparent 50%);
    background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
    padding-right: var(--space-2xl);
}

.form-error {
    margin: 0;
    color: var(--color-danger);
    font-size: var(--font-size-sm);
}

.form__hint {
    margin: 0;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.form__actions {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-sm);
    margin-top: var(--space-sm);
}

@media (min-width: 640px) {
    .form__actions {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
    .form__actions .btn {
        min-width: 200px;
    }
}

/* ---------- Alerts ---------- */

.alert {
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    border: 1px solid transparent;
    margin-bottom: var(--space-md);
}

.alert--success {
    background: #e8f3ec;
    color: #0e4a23;
    border-color: #b8dcc4;
}

.alert--error {
    background: #fbe5e1;
    color: #7a1604;
    border-color: #f1b8af;
}

/* ============================================================
   Componentes del sitio de marca (landing publica)
   ============================================================ */

/* ---------- Botones de marca ---------- */

.btn-pink,
.btn-outline-w,
.btn-lav,
.btn-ghost-w {
    display: inline-block;
    font-family: var(--font-subtitle);
    font-size: 0.88rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: var(--radius-pill);
    padding: 0.85rem 2.2rem;
    transition: opacity 0.2s, transform 0.2s, border-color 0.2s, color 0.2s;
}

.btn-pink { background: var(--brand-pink); color: var(--brand-dark); }
.btn-pink:hover { opacity: 0.88; transform: translateY(-2px); color: var(--brand-dark); }

.btn-outline-w {
    border: 1.5px solid rgba(238, 231, 253, 0.3);
    color: var(--brand-lavender-bg);
}
.btn-outline-w:hover { border-color: var(--brand-pink); color: var(--brand-pink); }

.btn-lav {
    background: var(--brand-lavender-bg);
    color: var(--brand-dark);
    padding: 0.78rem 2rem;
    font-size: 0.86rem;
}
.btn-lav:hover { opacity: 0.88; color: var(--brand-dark); }

.btn-ghost-w {
    border: 1.5px solid rgba(238, 231, 253, 0.22);
    color: var(--brand-lavender-bg);
    padding: 0.78rem 2rem;
    font-size: 0.86rem;
}
.btn-ghost-w:hover { border-color: var(--brand-pink); color: var(--brand-pink); }

/* Variante compacta (nav) */
.btn-pink--sm { padding: 0.48rem 1.3rem; font-size: 0.8rem; }

/* ---------- Etiquetas de seccion ---------- */

.s-label {
    display: block;
    font-family: var(--font-subtitle);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--brand-blue);
    margin-bottom: 0.8rem;
}

.s-title {
    font-family: var(--font-title);
    font-size: clamp(1.8rem, 4vw, 2.9rem);
    font-weight: 500;
    color: var(--brand-dark);
    line-height: 1.12;
    margin-bottom: 2.5rem;
}

.s-title span { color: var(--brand-pink); }

/* ---------- Reveal on scroll (ver app.js) ---------- */

.reveal {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; transition: none; }
}