/* ==========================================================================
   Royal Thai Embassy — Portfolio Detail Stylesheet
   Shares design tokens with style.css but is loaded standalone since this
   page is opened via target="_blank" independently of index.html.
   ========================================================================== */

@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.css');
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

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

html { scroll-behavior: smooth; }

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

:root {
  --color-bg: #F5F3EF;
  --color-surface: #FFFFFF;
  --color-primary: #1C1C1C;
  --color-secondary: #4A4A4A;
  --color-accent: #8B7355;
  --color-line: #E5E1DA;
  --color-muted: #9A9689;

  --font-kr: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Malgun Gothic', sans-serif;
  --font-en: 'Playfair Display', serif;

  --max-width: 1000px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  font-family: var(--font-kr);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-secondary);
  background-color: var(--color-bg);
}

.container {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 24px;
}

/* Detail top bar */
.detail-bar {
  position: sticky;
  top: 0;
  z-index: 10;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-line);
  padding-block: 20px;
}

.detail-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.detail-bar__logo {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-primary);
}

.detail-bar__back {
  font-size: 0.9rem;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.3s var(--ease);
}

.detail-bar__back:hover {
  gap: 10px;
}

/* Hero banner */
.detail-hero {
  padding-block: 72px 48px;
  text-align: center;
  background: linear-gradient(180deg, #2b2620 0%, #1c1c1c 100%);
  color: #fff;
}

.detail-hero__eyebrow {
  font-family: var(--font-en);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.detail-hero__title {
  font-family: var(--font-en);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  margin-block: 16px 8px;
}

.detail-hero__subtitle {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.75);
}

/* Sections */
.detail-section {
  padding-block: 72px;
  border-bottom: 1px solid var(--color-line);
}

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

.detail-section__head {
  margin-bottom: 40px;
}

.detail-section__num {
  font-family: var(--font-en);
  font-size: 0.9rem;
  color: var(--color-muted);
  letter-spacing: 0.1em;
}

.detail-section__title {
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-weight: 700;
  color: var(--color-primary);
  margin-top: 8px;
}

/* Overview */
.overview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background-color: var(--color-line);
  border: 1px solid var(--color-line);
}

.overview-grid__item {
  background-color: var(--color-surface);
  padding: 28px 24px;
}

.overview-grid__label {
  font-size: 0.8rem;
  color: var(--color-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.overview-grid__value {
  font-size: 1.05rem;
  color: var(--color-primary);
  font-weight: 600;
}

/* Plan comparison table */
.plan-compare {
  display: grid;
  grid-template-columns: 160px 1fr 1fr;
  border: 1px solid var(--color-line);
}

.plan-compare > div {
  padding: 20px 24px;
  border-bottom: 1px solid var(--color-line);
  border-right: 1px solid var(--color-line);
  display: flex;
  align-items: center;
}

.plan-compare > div:nth-child(3n) {
  border-right: none;
}

.plan-compare > div:nth-last-child(-n+3) {
  border-bottom: none;
}

.plan-compare__head {
  background-color: var(--color-bg);
  font-family: var(--font-en);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.05em;
}

.plan-compare__row-label {
  font-weight: 700;
  color: var(--color-primary);
  background-color: var(--color-bg);
}

/* Concept image blocks */
.concept-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.concept-figure {
  border: 1px solid var(--color-line);
  background-color: var(--color-surface);
}

.concept-figure .concept-figure__img {
  aspect-ratio: 4 / 3;
  height: auto;
}

.concept-figure figcaption {
  padding: 14px 18px;
  font-size: 0.9rem;
  color: var(--color-secondary);
  border-top: 1px solid var(--color-line);
}

/* Single wide image blocks (stage / bookshelf) */
.wide-figure {
  border: 1px solid var(--color-line);
  background-color: var(--color-surface);
}

.wide-figure .wide-figure__img {
  aspect-ratio: 16 / 9;
  height: auto;
}

.wide-figure figcaption {
  padding: 16px 20px;
  font-size: 0.9rem;
  color: var(--color-secondary);
  border-top: 1px solid var(--color-line);
}

/* Material finish palette */
.material-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.material-swatch {
  border: 1px solid var(--color-line);
  background-color: var(--color-surface);
  overflow: hidden;
}

.material-swatch .material-swatch__color {
  aspect-ratio: 1 / 1;
  height: auto;
}

.material-swatch__name {
  padding: 12px 14px;
  font-size: 0.85rem;
  color: var(--color-primary);
  font-weight: 600;
}

.material-swatch__code {
  padding: 0 14px 14px;
  font-size: 0.75rem;
  color: var(--color-muted);
}

/* Placeholder blocks */
.img-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 12px;
  font-family: var(--font-en);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.9);
  background: linear-gradient(135deg, #8B7355 0%, #6f5c44 45%, #3a3229 100%);
}

.img-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Back CTA */
.detail-cta {
  padding-block: 64px;
  text-align: center;
}

.detail-cta__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 36px;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  font-size: 0.95rem;
  transition: all 0.3s var(--ease);
}

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

/* Responsive */
@media (max-width: 767px) {
  .overview-grid {
    grid-template-columns: 1fr;
  }

  .plan-compare {
    grid-template-columns: 1fr;
  }

  .plan-compare > div {
    border-right: none;
  }

  .plan-compare > div:nth-child(3n) {
    border-bottom: 1px solid var(--color-line);
  }

  .plan-compare > div:nth-last-child(-n+3) {
    border-bottom: 1px solid var(--color-line);
  }

  .plan-compare > div:last-child {
    border-bottom: none;
  }

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

  .material-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .detail-section {
    padding-block: 48px;
  }
}