/* --- Mar y Selva — Main Styles --- */

/* --- Global --- */
body {
    font-family: var(--font-body);
    font-size: var(--text-body);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: var(--leading-normal);
    letter-spacing: var(--tracking-normal);
    overflow-x: hidden;
}
::selection { background-color: var(--color-sage); color: var(--color-white); }

/* --- Shared Typography --- */
.section-label {
    display: block;
    font-size: var(--text-label);
    font-weight: 500;
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--color-sage);
    margin-bottom: var(--space-md);
}
.section-heading {
    font-family: var(--font-heading);
    font-size: var(--text-h2);
    font-weight: 300;
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-tight);
    color: var(--color-text);
    margin-bottom: var(--space-lg);
}
.section-divider {
    width: 60px;
    height: 1px;
    background-color: var(--color-sage);
    margin: 0 auto var(--space-xl);
}
.section-divider--light { background-color: var(--color-sage-light); }

/* --- NAVIGATION --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: var(--z-nav);
    display: flex;
    align-items: center;
}
.nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: var(--max-width-wide);
    margin: 0 auto;
    padding: 0 var(--content-padding);
}
.nav__logo {
    font-family: var(--font-heading);
    font-size: var(--text-h4);
    font-weight: 400;
    letter-spacing: var(--tracking-wide);
    color: var(--color-white);
    transition: color var(--duration-fast) var(--ease-smooth),
                text-shadow var(--duration-fast) var(--ease-smooth);
    white-space: nowrap;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
}
.nav.is-scrolled .nav__logo { color: var(--color-text); text-shadow: none; }
.nav__links { display: flex; align-items: center; gap: var(--space-xl); }
.nav__link {
    font-size: var(--text-small);
    font-weight: 400;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: var(--color-text-on-dark);
    transition: color var(--duration-fast) var(--ease-smooth),
                text-shadow var(--duration-fast) var(--ease-smooth);
    position: relative;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}
.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: currentColor;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--duration-fast) var(--ease-out);
}
.nav__link:hover::after,
.nav__link.is-active::after { transform: scaleX(1); transform-origin: left; }
.nav__link:hover { color: var(--color-text-on-dark); }
.nav.is-scrolled .nav__link { color: var(--color-text-tertiary); text-shadow: none; }
.nav.is-scrolled .nav__link:hover,
.nav.is-scrolled .nav__link.is-active { color: var(--color-text); }
.nav__cta {
    font-size: var(--text-small);
    font-weight: 500;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: var(--color-white);
    padding: var(--space-xs) var(--space-md);
    border: 1px solid var(--color-white-80);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
    transition:
        color var(--duration-fast) var(--ease-smooth),
        border-color var(--duration-fast) var(--ease-smooth),
        background-color var(--duration-fast) var(--ease-smooth),
        text-shadow var(--duration-fast) var(--ease-smooth);
}
.nav__cta:hover {
    background-color: var(--color-white);
    color: var(--color-dark);
    border-color: var(--color-white);
}
.nav.is-scrolled .nav__cta {
    color: var(--color-sage-dark);
    border-color: var(--color-sage);
    text-shadow: none;
}
.nav.is-scrolled .nav__cta:hover {
    background-color: var(--color-sage);
    color: var(--color-white);
    border-color: var(--color-sage);
}
/* Scrolled state */
.nav.is-scrolled {
    background-color: var(--color-bg-frosted);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 var(--color-border-light);
}
/* Mobile toggle */
.nav__toggle {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-width: 44px;
    min-height: 44px;
    padding: var(--space-xs);
    z-index: calc(var(--z-mobile-menu) + 1);
}
.nav__toggle span {
    display: block;
    width: 22px;
    height: 1.5px;
    background-color: var(--color-text-on-dark);
    transition:
        transform var(--duration-fast) var(--ease-smooth),
        opacity var(--duration-fast) var(--ease-smooth),
        background-color var(--duration-fast) var(--ease-smooth);
}
.nav.is-scrolled .nav__toggle span { background-color: var(--color-text); }
.nav__toggle.is-open span:nth-child(1) { transform: translateY(3.75px) rotate(45deg); }
.nav__toggle.is-open span:nth-child(2) { transform: translateY(-3.75px) rotate(-45deg); }
/* Mobile menu overlay — premium dark treatment */
.nav__mobile-overlay { display: none; }

/* --- HERO SECTION --- */
.hero {
    position: relative;
    height: 100vh;
    height: 100svh;
    min-height: 600px;
    overflow: hidden;
}
.hero__video { position: absolute; inset: 0; z-index: 1; }
.hero__video video {
    width: 100%;
    height: 100%;
    max-width: none;
    object-fit: cover;
    object-position: center 40%;
}
.hero__video-mobile { display: none; }
.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(26, 37, 32, 0.35) 0%,
        rgba(26, 37, 32, 0.08) 25%,
        rgba(26, 37, 32, 0.05) 50%,
        rgba(26, 37, 32, 0.08) 75%,
        rgba(26, 37, 32, 0.4) 100%
    );
    z-index: 2;
}
.hero__content {
    position: absolute;
    inset: 0;
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--content-padding);
}
.hero__content-backdrop {
    position: absolute;
    width: 600px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(
        ellipse at center,
        rgba(26, 37, 32, 0.45) 0%,
        rgba(26, 37, 32, 0.2) 40%,
        transparent 70%
    );
    pointer-events: none;
    z-index: -1;
}
.hero__subtitle {
    font-size: var(--text-small);
    font-weight: 400;
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--color-text-on-dark);
    margin-bottom: var(--space-md);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}
.hero__title {
    font-family: var(--font-heading);
    font-size: var(--text-hero);
    font-weight: 300;
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-normal);
    color: var(--color-white);
    margin-bottom: var(--space-md);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
}
.hero__tagline {
    font-family: var(--font-heading);
    font-size: var(--text-h4);
    font-weight: 300;
    font-style: italic;
    color: var(--color-text-on-dark);
    margin-bottom: var(--space-xl);
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.35);
}
.hero__cta {
    font-size: var(--text-small);
    font-weight: 500;
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--color-white);
    padding: var(--space-sm) var(--space-xl);
    border: 1px solid var(--color-white-80);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    transition:
        background-color var(--duration-fast) var(--ease-smooth),
        border-color var(--duration-fast) var(--ease-smooth),
        transform var(--duration-fast) var(--ease-out);
}
.hero__cta:hover { background-color: var(--color-white-15); border-color: var(--color-white-80); }
.hero__cta:active { transform: scale(0.98); }
/* Scroll indicator */
.hero__scroll {
    position: absolute;
    bottom: var(--space-xl);
    left: 0;
    right: 0;
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
}
.hero__scroll span {
    font-size: var(--text-label);
    font-weight: 400;
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--color-text-on-dark);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}
.hero__scroll-line { width: 1px; height: 40px; overflow: hidden; }

/* --- INTRODUCTION SECTION --- */
.intro { padding: var(--space-section) var(--content-padding); background-color: var(--color-bg); }
.intro__inner { max-width: var(--max-width-narrow); margin: 0 auto; text-align: center; }
.intro__heading {
    font-family: var(--font-heading);
    font-size: var(--text-h1);
    font-weight: 300;
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-tight);
    color: var(--color-text);
    margin-bottom: var(--space-xl);
}
.intro__text {
    font-size: var(--text-body-lg);
    font-weight: 300;
    line-height: var(--leading-relaxed);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}
.intro__text:last-child { margin-bottom: 0; }

/* --- FEATURE IMAGE (Full-width break) --- */
.feature-image {
    position: relative;
    width: 100%;
    height: 75vh;
    min-height: 400px;
    max-height: 900px;
    overflow: hidden;
}
.feature-image img { width: 100%; height: 100%; object-fit: cover; }
.feature-image__caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-xl) var(--content-padding);
    background: linear-gradient(to top, var(--color-overlay-heavy), transparent);
    text-align: center;
}
.feature-image__caption p {
    font-family: var(--font-heading);
    font-size: var(--text-h3);
    font-weight: 300;
    font-style: italic;
    color: var(--color-text-on-dark);
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
}

/* --- ACCOMMODATIONS SECTION --- */
.accommodations { padding: var(--space-section) var(--content-padding); background-color: var(--color-bg); }
.accommodations__header { max-width: var(--max-width-narrow); margin: 0 auto var(--space-3xl); text-align: center; }
.accommodations__desc {
    font-size: var(--text-body-lg);
    font-weight: 300;
    line-height: var(--leading-relaxed);
    color: var(--color-text-secondary);
}
.accommodations__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl) var(--space-lg);
    max-width: var(--max-width-wide);
    margin: 0 auto;
}
/* Villa Card */
.villa-card { position: relative; }
.villa-card__image {
    position: relative;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    margin-bottom: var(--space-md);
    background-color: var(--color-bg-alt);
}
.villa-card__image img { width: 100%; height: 100%; object-fit: cover; }
.villa-card__name {
    font-family: var(--font-heading);
    font-size: var(--text-h3);
    font-weight: 400;
    color: var(--color-text);
    margin-bottom: var(--space-xs);
}
.villa-card__meta {
    font-size: var(--text-small);
    color: var(--color-text-tertiary);
    letter-spacing: var(--tracking-normal);
    margin-bottom: var(--space-sm);
}
.villa-card__desc {
    font-size: var(--text-body);
    font-weight: 300;
    line-height: var(--leading-normal);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}
.villa-card__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    min-height: 44px;
    font-size: var(--text-small);
    font-weight: 500;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: var(--color-sage);
    transition: gap var(--duration-fast) var(--ease-smooth);
}
.villa-card__link:hover { gap: var(--space-sm); }
.villa-card__link svg { width: 16px; height: 16px; transition: transform var(--duration-fast) var(--ease-smooth); }
/* Full estate CTA */
.accommodations__estate {
    max-width: var(--max-width-wide);
    margin: var(--space-3xl) auto 0;
    text-align: center;
    padding: var(--space-2xl) var(--content-padding);
    border: 1px solid var(--color-border);
}
.accommodations__estate-label {
    font-size: var(--text-label);
    font-weight: 500;
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--color-sage);
    margin-bottom: var(--space-sm);
}
.accommodations__estate-heading {
    font-family: var(--font-heading);
    font-size: var(--text-h3);
    font-weight: 300;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
}
.accommodations__estate-text {
    font-size: var(--text-body);
    font-weight: 300;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
    max-width: var(--max-width-narrow);
    margin-left: auto;
    margin-right: auto;
    line-height: var(--leading-normal);
}
.btn {
    display: inline-block;
    font-size: var(--text-small);
    font-weight: 500;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    padding: var(--space-sm) var(--space-xl);
    border: 1px solid;
    transition:
        background-color var(--duration-fast) var(--ease-smooth),
        color var(--duration-fast) var(--ease-smooth),
        border-color var(--duration-fast) var(--ease-smooth),
        transform var(--duration-fast) var(--ease-out);
}
.btn:active { transform: scale(0.98); }
.btn--sage { color: var(--color-sage-dark); border-color: var(--color-sage); }
.btn--sage:hover { background-color: var(--color-sage); color: var(--color-white); }
.btn--white { color: var(--color-white); border-color: var(--color-white-50); }
.btn--white:hover { background-color: var(--color-white-15); border-color: var(--color-white-80); }
.btn--filled { background-color: var(--color-sage); color: var(--color-white); border-color: var(--color-sage); }
.btn--filled:hover { background-color: var(--color-sage-dark); border-color: var(--color-sage-dark); }

/* --- EXPERIENCE SECTION --- */
.experience { padding: var(--space-section) var(--content-padding); background-color: var(--color-bg-alt); }
.experience__header { max-width: var(--max-width-narrow); margin: 0 auto var(--space-3xl); text-align: center; }
.experience__desc {
    font-size: var(--text-body-lg);
    font-weight: 300;
    line-height: var(--leading-relaxed);
    color: var(--color-text-secondary);
}
.experience__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    max-width: var(--max-width);
    margin: 0 auto;
}
.experience-card { text-align: center; }
.experience-card__image {
    aspect-ratio: 1 / 1;
    overflow: hidden;
    margin-bottom: var(--space-lg);
    background-color: var(--color-bg-alt);
}
.experience-card__image img { width: 100%; height: 100%; object-fit: cover; }
.experience-card__title {
    font-family: var(--font-heading);
    font-size: var(--text-h4);
    font-weight: 400;
    color: var(--color-text);
    margin-bottom: var(--space-xs);
    letter-spacing: var(--tracking-normal);
}
.experience-card__text {
    font-size: var(--text-body);
    font-weight: 300;
    line-height: var(--leading-normal);
    color: var(--color-text-secondary);
    max-width: 36ch;
    margin: 0 auto;
}

/* --- GALLERY SECTION --- */
.gallery { padding: var(--space-section) var(--content-padding); background-color: var(--color-bg); }
.gallery__header { max-width: var(--max-width-narrow); margin: 0 auto var(--space-3xl); text-align: center; }
.gallery__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xs);
    max-width: var(--max-width-wide);
    margin: 0 auto;
}
.gallery__item {
    position: relative;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    cursor: pointer;
    background-color: var(--color-bg-alt);
}
.gallery__item--wide { grid-column: span 2; aspect-ratio: 2 / 1; }
.gallery__item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--duration-normal) var(--ease-out);
}
@media (hover: hover) {
    .gallery__item:hover img { transform: scale(1.03); }
}
.gallery__item::after {
    content: '';
    position: absolute;
    inset: 0;
    background-color: transparent;
    transition: background-color var(--duration-normal) var(--ease-smooth);
}
.gallery__item:hover::after { background-color: var(--color-overlay-subtle); }
/* Gallery lightbox */
.gallery-lightbox {
    display: none;
    position: fixed;
    inset: 0;
    z-index: var(--z-gallery-modal);
    background-color: var(--color-lightbox-bg);
    align-items: center;
    justify-content: center;
    padding: var(--space-xl);
}
.gallery-lightbox.is-open { display: flex; }
.gallery-lightbox__close {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    color: var(--color-white);
    font-size: var(--text-h3);
    padding: var(--space-sm);
    opacity: 0.7;
    transition: opacity var(--duration-fast) var(--ease-smooth);
    z-index: var(--z-content);
}
.gallery-lightbox__close:hover { opacity: 1; }
.gallery-lightbox__image { max-width: 90vw; max-height: 85vh; object-fit: contain; }
.gallery-lightbox__nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-white);
    font-size: var(--text-h2);
    padding: var(--space-lg);
    opacity: 0.6;
    transition: opacity var(--duration-fast) var(--ease-smooth);
}
.gallery-lightbox__nav:hover { opacity: 1; }
.gallery-lightbox__nav--prev { left: var(--space-sm); }
.gallery-lightbox__nav--next { right: var(--space-sm); }
.gallery-lightbox__counter {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    font-size: var(--text-small);
    color: var(--color-text-on-dark-muted);
    letter-spacing: var(--tracking-wide);
}

/* --- TESTIMONIALS SECTION --- */
.testimonials { padding: var(--space-section) var(--content-padding); background-color: var(--color-bg-alt); }
.testimonials__header { max-width: var(--max-width-narrow); margin: 0 auto var(--space-3xl); text-align: center; }
.testimonials__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
    max-width: var(--max-width);
    margin: 0 auto;
}
.testimonial-card {
    text-align: center;
    padding: var(--space-2xl) var(--space-xl);
    border-left: 1px solid var(--color-border-light);
}
.testimonial-card:first-child { border-left: none; }
.testimonial-card__stars {
    color: var(--color-sand);
    font-size: var(--text-body);
    letter-spacing: var(--tracking-widest);
    margin-bottom: var(--space-md);
}
.testimonial-card__quote {
    font-family: var(--font-heading);
    font-size: var(--text-h4);
    font-weight: 300;
    font-style: italic;
    line-height: var(--leading-snug);
    color: var(--color-text);
    margin-bottom: var(--space-lg);
}
.testimonial-card__author {
    font-size: var(--text-small);
    font-weight: 400;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: var(--color-text-tertiary);
}

/* --- LOCATION SECTION --- */
.location { padding: var(--space-section) var(--content-padding); background-color: var(--color-bg); }
.location__header { max-width: var(--max-width-narrow); margin: 0 auto var(--space-3xl); text-align: center; }
.location__desc {
    font-size: var(--text-body-lg);
    font-weight: 300;
    line-height: var(--leading-relaxed);
    color: var(--color-text-secondary);
}
.location__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    max-width: var(--max-width);
    margin: 0 auto;
    align-items: start;
}
.location__map {
    aspect-ratio: 4 / 3;
    border: 1px solid var(--color-border);
    overflow: hidden;
}
.location__map iframe { width: 100%; height: 100%; border: 0; }
.location__details { padding: var(--space-lg) 0; }
.location__detail { margin-bottom: var(--space-xl); }
.location__detail-label {
    font-size: var(--text-label);
    font-weight: 500;
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--color-sage);
    margin-bottom: var(--space-xs);
}
.location__detail-text {
    font-size: var(--text-body);
    font-weight: 300;
    line-height: var(--leading-normal);
    color: var(--color-text-secondary);
}
.location__detail-text a {
    color: var(--color-sage);
    border-bottom: 1px solid transparent;
    transition: border-color var(--duration-fast) var(--ease-smooth);
}
.location__detail-text a:hover { border-bottom-color: var(--color-sage); }

/* --- BOOKING / CTA SECTION --- */
.booking-cta {
    padding: var(--space-section) var(--content-padding);
    background-color: var(--color-dark);
    text-align: center;
}
.booking-cta__inner { max-width: var(--max-width-narrow); margin: 0 auto; }
.booking-cta .section-label { color: var(--color-sage-light); }
.booking-cta__heading {
    font-family: var(--font-heading);
    font-size: var(--text-h1);
    font-weight: 300;
    line-height: var(--leading-tight);
    color: var(--color-text-on-dark);
    margin-bottom: var(--space-md);
}
.booking-cta__text {
    font-size: var(--text-body-lg);
    font-weight: 300;
    line-height: var(--leading-relaxed);
    color: var(--color-text-on-dark-muted);
    margin-bottom: var(--space-xl);
}

/* --- CONTACT SECTION --- */
.contact { padding: var(--space-section) var(--content-padding); background-color: var(--color-bg); }
.contact__header { max-width: var(--max-width-narrow); margin: 0 auto var(--space-3xl); text-align: center; }
.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    max-width: var(--max-width);
    margin: 0 auto;
}
.contact__info { padding: var(--space-lg) 0; }
.contact__info-item { margin-bottom: var(--space-xl); }
.contact__info-label {
    font-size: var(--text-label);
    font-weight: 500;
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--color-sage);
    margin-bottom: var(--space-xs);
}
.contact__info-value {
    font-size: var(--text-body);
    font-weight: 300;
    line-height: var(--leading-normal);
    color: var(--color-text-secondary);
}
.contact__info-value a {
    color: var(--color-text-secondary);
    border-bottom: 1px solid transparent;
    transition: border-color var(--duration-fast) var(--ease-smooth);
}
.contact__info-value a:hover { border-bottom-color: var(--color-text-secondary); }
/* Contact form */
.contact__form { display: flex; flex-direction: column; gap: var(--space-lg); }
.form-group { display: flex; flex-direction: column; gap: var(--space-xs); }
.form-group label {
    font-size: var(--text-label);
    font-weight: 500;
    letter-spacing: var(--tracking-widest);
    text-transform: uppercase;
    color: var(--color-text-tertiary);
}
.form-group input,
.form-group textarea,
.form-group select {
    font-size: var(--text-body);
    font-weight: 300;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--color-border);
    background-color: var(--color-white);
    color: var(--color-text);
    border-radius: var(--border-radius);
    transition: border-color var(--duration-fast) var(--ease-smooth);
}
.form-group input:focus-visible,
.form-group textarea:focus-visible,
.form-group select:focus-visible {
    border-color: var(--color-sage);
    outline: 2px solid var(--color-sage-bg);
    outline-offset: 0;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--color-text-tertiary); font-weight: 300; }
.form-group textarea { resize: vertical; min-height: 160px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-lg); }
.contact__form .btn { align-self: flex-start; margin-top: var(--space-sm); }
/* Form validation */
.form-group--error input,
.form-group--error textarea,
.form-group--error select { border-color: var(--color-error); background-color: var(--color-error-bg); }
.form-error { font-size: var(--text-small); color: var(--color-error); margin-top: var(--space-xs); }
/* Button disabled state */
.btn--disabled { opacity: 0.6; pointer-events: none; }

/* --- FOOTER --- */
.footer {
    padding: var(--space-2xl) var(--content-padding) var(--space-xl);
    background-color: var(--color-dark);
    color: var(--color-text-on-dark);
}
.footer__inner { max-width: var(--max-width); margin: 0 auto; }
.footer__top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: var(--space-2xl);
    border-bottom: 1px solid var(--color-white-10);
    margin-bottom: var(--space-xl);
}
.footer__brand {
    font-family: var(--font-heading);
    font-size: var(--text-h3);
    font-weight: 300;
    letter-spacing: var(--tracking-normal);
    color: var(--color-text-on-dark);
}
.footer__brand-tagline {
    font-family: var(--font-heading);
    font-size: var(--text-body);
    font-weight: 300;
    font-style: italic;
    color: var(--color-text-on-dark-muted);
    margin-top: var(--space-xs);
}
.footer__links { display: flex; gap: var(--space-xl); }
.footer__link {
    font-size: var(--text-small);
    font-weight: 400;
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: var(--color-text-on-dark-muted);
    transition: color var(--duration-fast) var(--ease-smooth);
    position: relative;
}
.footer__link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: currentColor;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--duration-fast) var(--ease-out);
}
.footer__link:hover::after { transform: scaleX(1); transform-origin: left; }
.footer__link:hover { color: var(--color-text-on-dark); }
.footer__bottom { display: flex; justify-content: space-between; align-items: center; }
.footer__copyright {
    font-size: var(--text-small);
    font-weight: 300;
    color: var(--color-text-on-dark-muted);
}
.footer__social { display: flex; gap: var(--space-md); }
.footer__social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
    color: var(--color-text-on-dark-muted);
    transition:
        color var(--duration-fast) var(--ease-smooth),
        transform var(--duration-fast) var(--ease-out);
}
.footer__social a:hover { color: var(--color-text-on-dark); }
@media (hover: hover) {
    .footer__social a:hover { transform: translateY(-2px); }
}
.footer__social svg { width: 18px; height: 18px; }