/* ---------------------------------------------------------------------------
   The Gatehouse at Chatham — placeholder site
   Priory Hospitality Group
   --------------------------------------------------------------------------- */

:root {
  --aubergine:   #4B3D49;
  --mauve:       #806D78;
  --mushroom:    #A99F93;
  --bone:        #ECE7DE;
  --soft-black:  #303032;

  --paper:       #F5F2EC;   /* a shade above bone, for panels */
  --ink:         var(--soft-black);
  --rule:        rgba(169, 159, 147, 0.55);

  --display: "Cormorant Garamond", "Adobe Garamond Pro", Garamond, Georgia, serif;
  --sans:    "Jost", "Futura", "Avenir Next", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --measure: 34rem;
  --shell:   72rem;
  --gutter:  clamp(1.25rem, 5vw, 3rem);
}

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

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

body {
  margin: 0;
  background: var(--bone);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 300;
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--aubergine);
  text-decoration-color: var(--mushroom);
  text-underline-offset: 0.2em;
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}
a:hover { color: var(--mauve); text-decoration-color: var(--mauve); }

:focus-visible {
  outline: 2px solid var(--aubergine);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--aubergine);
  color: var(--bone);
  padding: 0.75rem 1.25rem;
  z-index: 100;
}
.skip-link:focus { left: 0; }

/* --- shared -------------------------------------------------------------- */

.rule {
  width: 3.5rem;
  height: 1px;
  background: var(--mushroom);
  margin: 2rem auto;
}
.rule--tight { margin: 1.5rem auto; width: 2.5rem; }

.section-heading {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2rem);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--aubergine);
  text-align: center;
  margin: 0;
}

/* --- masthead ------------------------------------------------------------ */

.masthead {
  padding: clamp(3rem, 9vw, 6rem) var(--gutter) 0;
  display: flex;
  justify-content: center;
}

.masthead__logo {
  width: clamp(15rem, 34vw, 20rem);
  height: auto;
}

/* --- intro --------------------------------------------------------------- */

.intro {
  max-width: var(--measure);
  margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 3.5rem) var(--gutter) clamp(3rem, 8vw, 5rem);
  text-align: center;
}

.intro__eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--mauve);
  margin: 0 0 1.25rem;
}

.intro__heading {
  font-family: var(--display);
  font-weight: 300;
  font-size: clamp(1.75rem, 1.2rem + 2.4vw, 2.75rem);
  line-height: 1.25;
  color: var(--aubergine);
  margin: 0;
  text-wrap: balance;
}

.intro__body {
  margin: 0 0 1.25rem;
  color: color-mix(in srgb, var(--ink) 88%, transparent);
}
.intro__body:last-child { margin-bottom: 0; }

/* --- gallery ------------------------------------------------------------- */

.gallery {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--gutter) clamp(3rem, 8vw, 5rem);
}

.gallery .section-heading { margin-bottom: 2.5rem; }

.gallery__grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(0.5rem, 1.5vw, 1rem);
}

.gallery__item { margin: 0; }

.gallery__button {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: var(--mushroom);
  cursor: zoom-in;
  overflow: hidden;
  position: relative;
  aspect-ratio: 4 / 3;
}

.gallery__button img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.2, 0.6, 0.2, 1), opacity 0.4s ease;
}

.gallery__button::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--aubergine);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.gallery__button:hover img,
.gallery__button:focus-visible img { transform: scale(1.04); }

.gallery__button:hover::after,
.gallery__button:focus-visible::after { opacity: 0.12; }

/* Two columns from tablet down. Six full-width photos on a phone makes for a
   very long scroll on what is only a placeholder page. */
@media (max-width: 46rem) {
  .gallery__grid { grid-template-columns: repeat(2, 1fr); }
}

/* --- inquiry ------------------------------------------------------------- */

.inquire {
  background: var(--paper);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: clamp(3rem, 8vw, 5rem) var(--gutter);
}

.inquire__inner {
  max-width: 32rem;
  margin: 0 auto;
}

.inquire__lede {
  text-align: center;
  margin: 0 0 2rem;
  color: var(--mauve);
}

.form { display: grid; gap: 1.25rem; }

.field { display: grid; gap: 0.4rem; }

.field label {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--aubergine);
}

.req { color: var(--mauve); }
.opt {
  letter-spacing: 0.06em;
  text-transform: none;
  color: var(--mushroom);
  font-size: 0.8125rem;
}

.field input,
.field textarea {
  font: inherit;
  color: var(--ink);
  background: var(--bone);
  border: 1px solid var(--rule);
  border-radius: 0;
  padding: 0.7rem 0.85rem;
  width: 100%;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.field input:focus,
.field textarea:focus {
  border-color: var(--aubergine);
  background: #fff;
  outline: none;
}

.field textarea { resize: vertical; min-height: 8rem; line-height: 1.6; }

.field--error input,
.field--error textarea { border-color: #9B3A3A; }

.field__error {
  margin: 0;
  font-size: 0.875rem;
  color: #9B3A3A;
}

/* Honeypot — off-screen rather than display:none, which some bots detect. */
.hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.btn {
  font-family: var(--sans);
  font-size: 0.8125rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--bone);
  background: var(--aubergine);
  border: 1px solid var(--aubergine);
  padding: 0.9rem 2rem;
  cursor: pointer;
  justify-self: center;
  transition: background 0.25s ease, color 0.25s ease;
}
.btn:hover { background: var(--mauve); border-color: var(--mauve); }

.notice {
  padding: 1rem 1.25rem;
  margin: 0 0 1.75rem;
  border-left: 3px solid var(--mauve);
  background: var(--bone);
}
.notice p { margin: 0 0 0.5rem; }
.notice p:last-child { margin-bottom: 0; }
.notice--bad { border-left-color: #9B3A3A; }

/* --- footer -------------------------------------------------------------- */

.site-footer {
  padding: clamp(2.5rem, 6vw, 3.5rem) var(--gutter);
  text-align: center;
}

/* The keyhole crest, standing in for the divider rule. Decorative only —
   alt="" keeps screen readers from announcing the brand twice. */
.site-footer__mark {
  width: auto;
  height: 2.75rem;
  margin: 0 auto 1.5rem;
  opacity: 0.85;
}

.site-footer__contact {
  margin: 0 0 0.75rem;
  font-size: 0.9375rem;
  letter-spacing: 0.04em;
}

.site-footer__legal {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mushroom);
}

/* --- lightbox ------------------------------------------------------------ */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(30, 30, 32, 0.97);
  display: grid;
  place-items: center;
  padding: clamp(1rem, 4vw, 3rem);
  opacity: 0;
  transition: opacity 0.25s ease;
}
.lightbox[hidden] { display: none; }
.lightbox.is-open { opacity: 1; }

.lightbox__figure {
  margin: 0;
  max-width: min(72rem, 100%);
  max-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.lightbox__img {
  max-width: 100%;
  max-height: calc(100vh - 9rem);
  object-fit: contain;
  box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.45);
}

.lightbox__caption {
  font-family: var(--display);
  font-size: 1.0625rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bone);
  text-align: center;
}

.lightbox__close,
.lightbox__nav {
  position: absolute;
  background: none;
  border: 0;
  color: var(--bone);
  cursor: pointer;
  line-height: 1;
  opacity: 0.7;
  transition: opacity 0.2s ease;
  padding: 0.5rem 0.75rem;
}
.lightbox__close:hover,
.lightbox__nav:hover { opacity: 1; }

.lightbox__close {
  top: clamp(0.5rem, 2vw, 1.5rem);
  right: clamp(0.5rem, 2vw, 1.5rem);
  font-size: 2.5rem;
}

.lightbox__nav {
  top: 50%;
  transform: translateY(-50%);
  font-size: 3.5rem;
}
.lightbox__nav--prev { left: clamp(0.25rem, 2vw, 1.5rem); }
.lightbox__nav--next { right: clamp(0.25rem, 2vw, 1.5rem); }

body.lb-open { overflow: hidden; }

@media (max-width: 30rem) {
  .lightbox__nav { font-size: 2.5rem; }
  .lightbox__img { max-height: calc(100vh - 11rem); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}