/* Art direction: De Bosch Villas → cool, minimal, architectural
   Palette: neutral stone/charcoal accent, navy background atmosphere
   Typography: Cabinet Grotesk (display) + General Sans (body)
   Density: spacious, gallery-like */

:root {
  --color-bg: #f5f4f2;
  --color-surface: #fbfbfa;
  --color-surface-offset: #eceae7;
  --color-placeholder: #d9d7d3;
  --color-text: #1c1c1b;
  --color-text-muted: #6f6d69;
  --color-border: #dcdad6;

  --color-accent: #2f3a3d;
  --color-accent-hover: #1f2729;

  --color-navy: #14213d;
  --color-navy-soft: color-mix(in oklab, #14213d 6%, #fbfbfa);

  --font-display: 'Cabinet Grotesk', 'Georgia', serif;
  --font-body: 'General Sans', 'Helvetica Neue', sans-serif;

  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;
  --space-32: 8rem;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

section[id] {
  scroll-margin-top: 90px;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  font-size: 16px;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.15;
}

p { color: var(--color-text); }

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

.eyebrow {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

a {
  color: var(--color-text);
  text-decoration: none;
}

.text-link {
  position: relative;
  color: var(--color-text);
  font-size: 0.9rem;
  padding-bottom: 2px;
  transition: color 0.2s ease;
}

.text-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.25s ease;
  opacity: 0.5;
}

.text-link:hover {
  color: var(--color-accent);
}

.text-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.button {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  padding: var(--space-4) var(--space-8);
  border-radius: 4px;
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.2s ease, transform 0.2s ease;
}

.button:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

.button-small {
  padding: var(--space-2) var(--space-6);
  font-size: 0.85rem;
}

/* HEADER */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) var(--space-16);
  background: rgba(245, 244, 242, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow 0.2s ease;
}

.header-top {
  display: contents;
}

.logo {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  font-variant-ligatures: common-ligatures;
}

.site-header nav {
  display: flex;
  gap: var(--space-6);
}

.mobile-book-inline {
  display: none !important;
}

.mobile-book {
  display: none !important;
}

.nav-toggle {
  display: none !important;
}

.nav-close {
  display: none !important;
}

.nav-overlay {
  display: none !important;
}

.desktop-book {
  display: inline-block;
}

/* HERO */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  background-color: var(--color-placeholder);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    rgba(10,15,25,0.75) 0%,
    rgba(10,15,25,0.55) 35%,
    rgba(20,33,61,0.35) 60%,
    rgba(20,33,61,0.55) 100%
  );
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin: 0 var(--space-16);
  color: #fff;
  padding: var(--space-8);
  border-radius: 8px;
  background: rgba(10, 15, 25, 0.25);
  backdrop-filter: blur(2px);
}

.hero-content .eyebrow {
  color: rgba(255,255,255,0.85);
  text-shadow: 0 1px 6px rgba(0,0,0,0.4);
}

.hero-content h1 {
  font-size: clamp(2.2rem, 5vw, 4rem);
  margin-bottom: var(--space-6);
  color: #fff;
  text-shadow: 0 2px 12px rgba(0,0,0,0.45);
}

.hero-sub {
  color: rgba(255,255,255,0.92);
  margin-bottom: var(--space-8);
  max-width: 50ch;
  text-shadow: 0 1px 8px rgba(0,0,0,0.35);
}

/* ABOUT */
.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  padding: var(--space-24) var(--space-16);
}

.about-text p:last-child {
  color: var(--color-text-muted);
  margin-top: var(--space-4);
  max-width: 55ch;
}

.about-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 6px;
  background-color: var(--color-placeholder);
}

/* UNITS / ACCOMODATION */
.units {
  padding: var(--space-24) var(--space-16);
  border-top: 1px solid var(--color-border);
}

.section-intro {
  color: var(--color-text-muted);
  max-width: 60ch;
  margin-top: var(--space-2);
  margin-bottom: var(--space-12);
}

.unit-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  margin-top: var(--space-12);
}

.unit-showcase-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 6px;
  background-color: var(--color-placeholder);
}

.unit-showcase-details h3 {
  font-size: 1.4rem;
  margin-bottom: var(--space-4);
}

.unit-features {
  list-style: none;
  margin-bottom: var(--space-8);
}

.unit-features li {
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.unit-features li:last-child {
  border-bottom: none;
}

/* IMAGE GALLERY TOGGLE */
.gallery-toggle-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-16);
  padding: var(--space-4);
  background: var(--color-navy-soft);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  color: var(--color-text);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.gallery-toggle-bar:hover {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.gallery-arrow {
  transition: transform 0.3s ease;
}

.gallery-arrow.open {
  transform: rotate(180deg);
}

.image-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(2, auto);
  gap: var(--space-4);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.4s ease, opacity 0.3s ease, margin-top 0.4s ease;
  margin-top: 0;
}

.image-gallery.open {
  max-height: 1200px;
  opacity: 1;
  margin-top: var(--space-8);
}

.image-gallery img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 6px;
  background-color: var(--color-placeholder);
}

/* AVAILABILITY */
.availability {
  padding: var(--space-24) var(--space-16);
  border-top: 1px solid var(--color-border);
  background: var(--color-navy-soft);
}

.availability-form {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  align-items: flex-end;
  margin-top: var(--space-8);
  padding: var(--space-8);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 6px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  min-width: 160px;
}

.form-field label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.form-field input,
.form-field select {
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-surface);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.95rem;
}

.form-field input:focus,
.form-field select:focus {
  outline: none;
  border-color: var(--color-accent);
}

.availability-form .button {
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
}

.form-note {
  margin-top: var(--space-4);
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* FORM ERROR PANEL */
.form-error {
  display: none;
  align-items: flex-start;
  gap: var(--space-3);
  margin-top: var(--space-6);
  padding: var(--space-4) var(--space-5);
  background: color-mix(in oklab, var(--color-accent) 8%, var(--color-surface));
  border: 1px solid var(--color-accent);
  border-radius: 6px;
  color: var(--color-text);
  font-size: 0.9rem;
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.form-error.visible {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}

.form-error svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-accent);
}

.form-error-text {
  flex: 1;
  line-height: 1.5;
}

.form-error-close {
  background: none;
  border: none;
  font-size: 1.1rem;
  line-height: 1;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 0;
  margin-left: var(--space-2);
  transition: color 0.2s ease;
}

.form-error-close:hover {
  color: var(--color-text);
}

/* LOCATION */
.location {
  padding: var(--space-24) var(--space-16);
  border-top: 1px solid var(--color-border);
}

.location-map {
  margin-top: var(--space-8);
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  background-color: var(--color-placeholder);
}

.location-map iframe {
  display: block;
  width: 100%;
}

.location-directions {
  display: inline-block;
  margin-top: var(--space-6);
}

/* FOOTER */
.site-footer {
  padding: var(--space-24) var(--space-16);
  border-top: 1px solid var(--color-border);
  text-align: center;
  background: var(--color-navy-soft);
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
}

.footer-tagline {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: var(--space-4);
}

.footer-social {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.icon-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.icon-button:hover {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.footer-email {
  margin-bottom: var(--space-4);
  font-size: 0.95rem;
}

.footer-copyright {
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

/* RESPONSIVE - MOBILE */
@media (max-width: 768px) {
  .site-header {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
  }

  .header-top {
    display: flex !important;
    justify-content: space-between;
    align-items: center;
    width: 100%;
  }

  .logo {
    font-size: 1.4rem;
  }

  .desktop-book {
    display: none !important;
  }

  .nav-toggle {
    display: flex !important;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
  }

  .nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text);
  }

  .mobile-book-inline {
    display: block !important;
    width: 100%;
    text-align: center;
  }

  #mainNav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 75%;
    max-width: 320px;
    height: 100vh;
    background: var(--color-surface);
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-5);
    padding: var(--space-8) var(--space-6);
    box-shadow: -6px 0 24px rgba(0,0,0,0.15);
    transition: right 0.3s ease;
    z-index: 200;
    overflow-y: auto;
  }

  #mainNav.open {
    right: 0;
  }

  #mainNav .nav-close {
    display: block !important;
    align-self: flex-end;
    background: none;
    border: none;
    font-size: 1.8rem;
    line-height: 1;
    color: var(--color-text);
    cursor: pointer;
    margin-bottom: var(--space-6);
    padding: 0;
  }

  #mainNav .text-link {
    font-size: 1rem;
    width: 100%;
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--color-border);
  }

  #mainNav .mobile-book {
    display: block !important;
    width: 100%;
    text-align: center;
    margin-top: var(--space-4);
  }

  .nav-overlay {
    display: block !important;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 150;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
  }

  .nav-overlay.open {
    opacity: 1;
    pointer-events: auto;
  }

  section[id] {
    scroll-margin-top: 130px;
  }

  .hero {
    min-height: 80vh;
  }

  .hero-content {
    margin: 0 var(--space-5);
    padding: var(--space-5);
  }

  .hero-content h1 {
    font-size: clamp(1.8rem, 8vw, 2.4rem);
  }

  .hero-sub {
    font-size: 0.95rem;
  }

  .hero-content .button {
    width: 100%;
    text-align: center;
    padding: var(--space-4);
  }

  .about {
    grid-template-columns: 1fr;
    padding: var(--space-16) var(--space-5);
    gap: var(--space-8);
  }

  .units, .availability, .location {
    padding: var(--space-16) var(--space-5);
  }

  .unit-showcase {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .unit-showcase-details .button {
    width: 100%;
    text-align: center;
  }

  .availability-form {
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-6);
  }

  .form-field {
    min-width: 100%;
  }

  .availability-form .button {
    width: 100%;
    padding: var(--space-4);
  }

  .gallery-toggle-bar {
    padding: var(--space-4) var(--space-3);
    font-size: 0.8rem;
    text-align: center;
  }

  .image-gallery {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
  }

  .image-gallery img {
    height: 160px;
  }

  .location-directions {
    width: 100%;
    text-align: center;
  }

  .footer-social {
    gap: var(--space-3);
  }

  .icon-button {
    width: 44px;
    height: 44px;
  }
}