/* ==========================================================================
   Alpine House — Public styles
   ========================================================================== */

/* --- Reset & base ------------------------------------------------------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-ink);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img,
picture,
video {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-accent);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
  margin: 0 0 0.5em;
  color: var(--color-ink);
}

h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.75rem); }
h3 { font-size: clamp(1.35rem, 2.5vw, 1.85rem); }

p {
  margin: 0 0 1em;
}

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

address {
  font-style: normal;
}

/* --- Layout ------------------------------------------------------------- */

.container {
  width: min(100% - 2.5rem, 72rem);
  margin-inline: auto;
}

.container--narrow {
  width: min(100% - 2.5rem, 48rem);
}

.section {
  padding-block: clamp(3rem, 8vw, 6rem);
}

.section--surface {
  background-color: var(--color-surface);
}

.section__header {
  max-width: 38rem;
  margin-bottom: clamp(2rem, 5vw, 3rem);
}

.section__eyebrow {
  display: block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.section__lead {
  font-size: 1.125rem;
  color: var(--color-muted);
  margin-top: 0.75rem;
}

/* --- Skip link ---------------------------------------------------------- */

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  padding: 0.6rem 1rem;
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
  border-radius: 0 0 4px 4px;
  font-size: 0.875rem;
}

.skip-link:focus {
  top: 0;
}

/* --- Header ------------------------------------------------------------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding-block: 1.25rem;
  background: transparent;
  transition: background-color 0.35s ease, box-shadow 0.35s ease, padding 0.35s ease;
}

.site-header.is-solid {
  padding-block: 0.75rem;
  background-color: rgba(243, 239, 230, 0.96);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.site-logo {
  text-decoration: none;
  color: var(--color-ink);
  flex-shrink: 0;
}

.site-logo__name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.site-header:not(.is-solid) .site-logo__name {
  color: #fff;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.25);
}

.site-header.is-solid .site-logo__name {
  color: var(--color-ink);
  text-shadow: none;
}

/* Nav toggle */

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
}

.nav-toggle__bar {
  display: block;
  width: 1.5rem;
  height: 2px;
  background: var(--color-ink);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.site-header:not(.is-solid) .nav-toggle__bar {
  background: #fff;
}

.site-header.is-solid .nav-toggle__bar,
.nav-open .nav-toggle__bar {
  background: var(--color-ink);
}

.nav-open .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-open .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-open .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Main nav */

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 0.15rem 1.25rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav__link {
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  color: rgba(255, 255, 255, 0.92);
  padding: 0.35rem 0;
  position: relative;
}

.site-header.is-solid .site-nav__link {
  color: var(--color-muted);
}

.site-nav__link:hover,
.site-nav__link.is-active {
  color: var(--color-accent);
}

.site-nav__link.is-active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--color-accent);
}

.site-nav__item--cta {
  margin-left: 0.5rem;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

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

.btn--primary:hover {
  background-color: #163a2c;
  border-color: #163a2c;
  color: #fff;
}

.btn--outline {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-line);
}

.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn--ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.btn--sm {
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
}

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

/* --- Hero --------------------------------------------------------------- */

.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: flex-end;
  padding-block: clamp(6rem, 14vw, 10rem) clamp(3rem, 8vw, 5rem);
  color: #fff;
  overflow: hidden;
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__media img,
.hero__media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(28, 36, 33, 0.82) 0%,
    rgba(28, 36, 33, 0.35) 45%,
    rgba(31, 77, 58, 0.25) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  width: min(100% - 2.5rem, 72rem);
  margin-inline: auto;
  max-width: 42rem;
}

.hero__title {
  color: #fff;
  margin-bottom: 0.75rem;
}

.hero__tagline {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 2rem;
  max-width: 32rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Page hero (interior pages) */

.page-hero {
  padding-block: clamp(7rem, 12vw, 9rem) clamp(2.5rem, 5vw, 3.5rem);
  background-color: var(--color-primary);
  color: #fff;
}

.page-hero__title {
  color: #fff;
}

.page-hero__lead {
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.125rem;
  max-width: 36rem;
}

/* --- Booking form ------------------------------------------------------- */

.book-form {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  padding: clamp(1.25rem, 3vw, 1.75rem);
}

.book-form--hero {
  margin-top: 2rem;
  max-width: 52rem;
}

.book-form__grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1rem;
  align-items: end;
}

.book-form__field label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 0.35rem;
}

.book-form__field input,
.book-form__field select {
  width: 100%;
  padding: 0.65rem 0.75rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-ink);
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: 2px;
  appearance: none;
}

.book-form__field input:focus,
.book-form__field select:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
  border-color: var(--color-primary);
}

.book-form__action {
  grid-column: span 1;
}

/* --- Sticky book bar ---------------------------------------------------- */

.sticky-book {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 90;
  padding: 0.75rem 1rem;
  background: var(--color-surface);
  border-top: 1px solid var(--color-line);
  box-shadow: 0 -4px 24px rgba(28, 36, 33, 0.08);
  transform: translateY(100%);
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.sticky-book.is-visible {
  transform: translateY(0);
}

.sticky-book__form {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.75rem 1rem;
  width: min(100%, 72rem);
  margin-inline: auto;
}

.sticky-book__field {
  flex: 1 1 8rem;
  min-width: 0;
}

.sticky-book__field label {
  display: block;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 0.25rem;
}

.sticky-book__field input {
  width: 100%;
  padding: 0.5rem 0.65rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  border: 1px solid var(--color-line);
  border-radius: 2px;
  background: var(--color-bg);
}

.sticky-book__submit {
  flex-shrink: 0;
  white-space: nowrap;
}

/* --- Room cards --------------------------------------------------------- */

.room-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 20rem), 1fr));
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.room-card {
  display: flex;
  flex-direction: column;
  border-bottom: 1px solid var(--color-line);
  padding-bottom: 1.5rem;
}

.room-card__media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  margin-bottom: 1.25rem;
  background: var(--color-line);
}

.room-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.room-card:hover .room-card__media img {
  transform: scale(1.03);
}

.room-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin-bottom: 0.5rem;
}

.room-card__title {
  font-size: 1.5rem;
  margin-bottom: 0.35rem;
}

.room-card__title a {
  text-decoration: none;
  color: inherit;
}

.room-card__title a:hover {
  color: var(--color-accent);
}

.room-card__excerpt {
  color: var(--color-muted);
  font-size: 0.9375rem;
  flex-grow: 1;
  margin-bottom: 1rem;
}

.room-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: auto;
}

.room-card__price {
  font-family: var(--font-display);
  font-size: 1.35rem;
  color: var(--color-primary);
}

.room-card__price small {
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--color-muted);
}

/* --- Room detail -------------------------------------------------------- */

.room-detail {
  display: grid;
  grid-template-columns: 1fr 22rem;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: start;
}

.room-detail__gallery {
  margin-bottom: 2rem;
}

.room-detail__main-image {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  margin-bottom: 0.75rem;
  background: var(--color-line);
}

.room-detail__main-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.room-detail__thumbs {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
}

.room-detail__thumb {
  flex: 0 0 5rem;
  aspect-ratio: 1;
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.2s ease, border-color 0.2s ease;
}

.room-detail__thumb.is-active,
.room-detail__thumb:hover {
  opacity: 1;
  border-color: var(--color-accent);
}

.room-detail__sidebar {
  position: sticky;
  top: 6rem;
  padding: 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
}

.room-detail__sidebar-price {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.room-detail__amenities {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.5rem 0;
}

.room-detail__amenity {
  font-size: 0.8125rem;
  padding: 0.35rem 0.65rem;
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  color: var(--color-muted);
}

/* --- Gallery ------------------------------------------------------------ */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 16rem), 1fr));
  gap: 0.5rem;
}

.gallery-grid__item {
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--color-line);
}

.gallery-grid__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-grid__item:hover img {
  transform: scale(1.05);
}

.gallery-grid--masonry {
  columns: 3;
  column-gap: 0.5rem;
}

.gallery-grid--masonry .gallery-grid__item {
  break-inside: avoid;
  margin-bottom: 0.5rem;
  aspect-ratio: auto;
}

/* --- Blog --------------------------------------------------------------- */

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 18rem), 1fr));
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.blog-card {
  border-bottom: 1px solid var(--color-line);
  padding-bottom: 1.5rem;
}

.blog-card__date {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.blog-card__title {
  font-size: 1.35rem;
}

.blog-card__title a {
  text-decoration: none;
  color: inherit;
}

.blog-card__title a:hover {
  color: var(--color-accent);
}

.blog-card__excerpt {
  color: var(--color-muted);
  font-size: 0.9375rem;
}

.blog-article {
  max-width: 42rem;
}

.blog-article__meta {
  font-size: 0.8125rem;
  color: var(--color-muted);
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-line);
}

.blog-article__body {
  font-size: 1.0625rem;
}

.blog-article__body h2,
.blog-article__body h3 {
  margin-top: 2rem;
}

/* --- Contact ------------------------------------------------------------ */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
}

.contact-info__item {
  margin-bottom: 1.5rem;
}

.contact-info__label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.35rem;
}

/* --- Forms (general) ---------------------------------------------------- */

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
  color: var(--color-ink);
}

.form-control {
  width: 100%;
  padding: 0.75rem 0.85rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-ink);
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: 2px;
  transition: border-color 0.2s ease, outline 0.2s ease;
}

.form-control:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
  border-color: var(--color-primary);
}

textarea.form-control {
  min-height: 8rem;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* --- Feature strip ------------------------------------------------------ */

.feature-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 2rem;
  padding-block: 3rem;
  border-block: 1px solid var(--color-line);
}

.feature-strip__item {
  text-align: center;
}

.feature-strip__icon {
  font-size: 1.5rem;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.feature-strip__title {
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}

.feature-strip__text {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin: 0;
}

/* --- Footer ------------------------------------------------------------- */

.site-footer {
  padding-block: clamp(3rem, 6vw, 4.5rem) 2rem;
  background: var(--color-ink);
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 0;
}

body.has-sticky-book .site-footer {
  padding-bottom: calc(2rem + 4.5rem);
}

.site-footer a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--color-accent);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.site-footer__name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: #fff;
  margin-bottom: 1rem;
}

.site-footer__address {
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: 1rem;
}

.site-footer__contact li {
  margin-bottom: 0.35rem;
  font-size: 0.9375rem;
}

.site-footer__nav-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem 1.5rem;
}

.site-footer__nav-list a {
  font-size: 0.875rem;
}

.site-footer__bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.site-footer__copy {
  font-size: 0.8125rem;
  margin: 0;
  color: rgba(255, 255, 255, 0.5);
}

/* --- Motion: fade-up ---------------------------------------------------- */

.fade-up {
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Utility ------------------------------------------------------------ */

.text-muted { color: var(--color-muted); }
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* --- Responsive --------------------------------------------------------- */

@media (max-width: 960px) {
  .book-form__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .book-form__action {
    grid-column: span 2;
  }

  .room-detail {
    grid-template-columns: 1fr;
  }

  .room-detail__sidebar {
    position: static;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .gallery-grid--masonry {
    columns: 2;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(18rem, 85vw);
    padding: 5rem 1.5rem 2rem;
    background: var(--color-surface);
    box-shadow: -4px 0 24px rgba(28, 36, 33, 0.12);
    transform: translateX(100%);
    transition: transform 0.35s ease;
    overflow-y: auto;
  }

  .nav-open .site-nav {
    transform: translateX(0);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-nav__link {
    display: block;
    padding: 0.75rem 0;
    color: var(--color-ink);
    border-bottom: 1px solid var(--color-line);
  }

  .site-header:not(.is-solid) .site-nav__link {
    color: var(--color-ink);
    text-shadow: none;
  }

  .site-nav__item--cta {
    margin-left: 0;
    margin-top: 1rem;
  }

  .site-nav__item--cta .btn {
    width: 100%;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
  }

  .sticky-book__form {
    flex-direction: column;
    align-items: stretch;
  }

  .sticky-book__submit {
    width: 100%;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .gallery-grid--masonry {
    columns: 1;
  }
}

@media (max-width: 480px) {
  .book-form__grid {
    grid-template-columns: 1fr;
  }

  .book-form__action {
    grid-column: span 1;
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }
}

/* Flash banners */
.flash {
  padding: 0.85rem 1.1rem;
  border: 1px solid var(--color-line);
  background: var(--color-surface);
}
.flash--success { border-color: var(--color-primary); color: var(--color-primary); }
.flash--error { border-color: #a33; color: #6b2d2d; background: #fdf5f5; }
.flash--info { color: var(--color-muted); }