/* ============================================================
   DESIGN TOKENS - edit this block first for every new client.
   Everything below the token block reads from these variables,
   so a full reskin is a ~2 minute edit.
   ============================================================ */
:root {
  /* Bảng màu: 60% trắng · 30% xanh lục · 10% đỏ son mài */
  --color-ink: #17251f;          /* xanh đậm gần đen cho text */
  --color-ink-soft: #45544d;
  --color-muted: #7c857f;
  --color-line: #e4ebe6;         /* hairline ngả xanh nhạt */
  --color-bg: #ffffff;
  --color-bg-alt: #f3f7f4;       /* trắng ngả xanh rất nhạt */
  --color-green: #14584a;        /* xanh lục chủ đạo (nền section, footer) */
  --color-green-dark: #0d3e33;
  --color-green-soft: #e7f0ec;
  --color-accent: #b8442f;       /* đỏ son mài: button, line, icon */
  --color-accent-strong: #9a3524;
  --color-accent-soft: #e8b5a6;
  --color-red: #8f2d1e;          /* đỏ trầm hơn, điểm nhấn hiếm */
  --color-white: #ffffff;

  --font-display: "Be Vietnam Pro", -apple-system, sans-serif;
  --font-body: "Be Vietnam Pro", -apple-system, sans-serif;

  --radius-sm: 8px;
  --radius-md: 20px;
  --radius-lg: 32px;
  --radius-full: 999px;

  --container-w: 1200px;
  --section-pad: 6rem;
  --section-pad-sm: 3.25rem;
}

/* ============================================================
   FONTS (self-hosted, chosen for correct rendering of stacked
   Vietnamese diacritics like "ệ", "ữ", "ợ" at large display sizes
   - Google-served display serifs (Cormorant, Playfair...) were
   tested and drop/float those marks at heading size)
   ============================================================ */
@font-face {
  font-family: "Be Vietnam Pro";
  src: url("../fonts/be-vietnam-pro-light.woff2") format("woff2");
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Be Vietnam Pro";
  src: url("../fonts/be-vietnam-pro-light-italic.woff2") format("woff2");
  font-weight: 300;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "Be Vietnam Pro";
  src: url("../fonts/be-vietnam-pro-regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Be Vietnam Pro";
  src: url("../fonts/be-vietnam-pro-semibold.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

/* ============================================================
   RESET
   ============================================================ */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--color-ink);
  background: var(--color-bg);
  font-family: var(--font-body);
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
}
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font: inherit; cursor: pointer; }
h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 300;
  line-height: 1.1;
  margin: 0;
}
h1 em, h2 em, h3 em { font-style: italic; color: var(--color-accent); }
p { line-height: 1.85; margin: 0; }

/* ============================================================
   LAYOUT
   ============================================================ */
.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.section { padding: var(--section-pad) 0; background: var(--color-bg); }
.section-sm { padding: var(--section-pad-sm) 0; }
.section-alt { background: var(--color-bg-alt); }
@media (max-width: 768px) {
  .section { padding: var(--section-pad-sm) 0; }
}

.eyebrow {
  display: block;
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent-strong);
  margin-bottom: 1rem;
}
.eyebrow.center { text-align: center; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.95rem 2rem;
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 22px rgba(0,0,0,0.14); }
.btn:active { transform: translateY(0); box-shadow: none; }
.btn-primary { background: var(--color-accent); color: var(--color-white); }
.btn-primary:hover { background: var(--color-green); color: var(--color-white); }
.btn-outline { background: transparent; color: var(--color-accent-strong); border-color: var(--color-accent); }
.btn-outline:hover { background: var(--color-accent); color: var(--color-white); }
.btn-outline-white { background: transparent; color: var(--color-white); border-color: rgba(255,255,255,0.8); }
.btn-outline-white:hover { background: var(--color-white); color: var(--color-green); }
.btn-green { background: var(--color-green); color: var(--color-white); }
.btn-green:hover { background: var(--color-green-dark); color: var(--color-white); }
.btn-tel {
  background: var(--color-accent);
  color: var(--color-white);
  padding: 1.1rem 2.5rem;
  font-size: 0.78rem;
}
.btn-tel:hover { background: var(--color-green); }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  transition: background-color 0.4s ease, border-color 0.4s ease;
}
.nav.is-solid { background: var(--color-white); border-bottom: 1px solid var(--color-line); }
.nav-inner {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-brand {
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-white);
  transition: color 0.4s ease;
}
.nav.is-solid .nav-brand { color: var(--color-ink); }
.nav-links { display: none; align-items: center; gap: 2.25rem; }
.nav-links a {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-white);
  opacity: 0.85;
  transition: color 0.4s ease, opacity 0.25s ease;
}
.nav-links a:hover { opacity: 1; }
.nav.is-solid .nav-links a { color: var(--color-ink); }
.nav-actions { display: none; align-items: center; gap: 1.25rem; }
.lang-toggle {
  background: none;
  border: none;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--color-white);
  transition: color 0.4s ease;
}
.nav.is-solid .lang-toggle { color: var(--color-ink); }
.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 0.5rem;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--color-white);
  transition: background-color 0.4s ease;
}
.nav.is-solid .nav-toggle span { background: var(--color-ink); }
/* Nút CTA trên header: khi header nền trắng thì đổi sang viền/chữ tối cho khỏi tàng hình */
.nav.is-solid .nav-actions .btn-outline-white { color: var(--color-ink); border-color: var(--color-ink); }
.nav.is-solid .nav-actions .btn-outline-white:hover { background: var(--color-ink); color: var(--color-white); }
.mobile-menu {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  padding: 2rem 1.5rem 2.5rem;
  background: var(--color-white);
  border-top: 1px solid var(--color-line);
}
.mobile-menu.is-open { display: flex; }
.mobile-menu a {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-ink);
}
@media (min-width: 900px) {
  .nav-links, .nav-actions { display: flex; }
  .nav-toggle { display: none; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 580px;
  display: flex;
  align-items: flex-end;
  background: var(--color-green-dark);
}
/* Nền chìm: video hero cố định theo màn hình, nội dung cuộn đè lên */
.hero-media {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  object-fit: cover;
  z-index: 0;
}
.hero-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: 0;
  background: linear-gradient(to top, rgba(9,44,36,0.82), rgba(13,62,51,0.42) 55%, rgba(9,44,36,0.55));
}
/* Các section/footer sau hero cuộn trượt LÊN che video cố định */
.hero ~ section, .hero ~ footer { position: relative; z-index: 1; }
.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--container-w);
  margin: 0 auto;
  width: 100%;
  padding: 0 1.5rem 6rem;
  color: var(--color-white);
}
.hero-content .eyebrow { color: rgba(255,255,255,0.75); }
.hero-content h1 {
  font-size: clamp(2.4rem, 6vw, 5.5rem);
  text-shadow: 0 2px 20px rgba(0,0,0,0.4);
  margin-bottom: 1.5rem;
}
.hero-content p.lead {
  max-width: 34rem;
  font-size: 1.1rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: 2.5rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; }

/* ============================================================
   PAGE HEADER (inner pages, no full hero)
   ============================================================ */
.page-header {
  padding: 9.5rem 0 3.5rem;
  text-align: center;
  background: var(--color-bg-alt);
}
.page-header h1 { font-size: clamp(2.1rem, 4.5vw, 3.4rem); }
.page-header p.lead {
  max-width: 34rem;
  margin: 1.25rem auto 0;
  color: var(--color-ink-soft);
}

/* ============================================================
   REVEAL ON SCROLL
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ============================================================
   CARDS / SERVICES
   ============================================================ */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
@media (min-width: 700px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
}
.card {
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 34px rgba(0,0,0,0.09);
  border-color: var(--color-accent-soft);
}
.card .card-index {
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--color-accent-soft);
  margin-bottom: 0.75rem;
}
.card h3 { font-size: 1.35rem; margin-bottom: 0.6rem; }
.card p { color: var(--color-muted); font-size: 0.92rem; }

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}
@media (min-width: 900px) {
  .about-grid { grid-template-columns: 1.1fr 0.9fr; gap: 4.5rem; }
}
.about-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 5;
}
.about-media .sound-btn { bottom: 1rem; right: 1rem; padding: 0.55rem 1rem; }
.about-media img, .about-media video { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.about-media:hover img, .about-media:hover video { transform: scale(1.04); }
.quote-block {
  margin-top: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--color-line);
}
.quote-block p {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  line-height: 1.3;
  color: var(--color-ink);
}
.quote-block footer { margin-top: 1rem; }

/* ============================================================
   WAVE DIVIDER (optional decorative section break)
   ============================================================ */
.wave-divider { position: relative; height: 56px; overflow: hidden; margin: -28px 0; z-index: 5; pointer-events: none; }
.wave-divider svg { position: absolute; top: 0; left: 0; width: 200%; height: 100%; animation: wave-flow 10s linear infinite; }
@keyframes wave-flow { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ============================================================
   GALLERY + LIGHTBOX
   ============================================================ */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}
@media (min-width: 700px) {
  .gallery-grid { grid-template-columns: repeat(3, 1fr); gap: 1rem; }
}
.gallery-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 1;
  background: var(--color-bg-alt);
  cursor: pointer;
  transition: box-shadow 0.35s ease;
}
.gallery-item:hover { box-shadow: 0 14px 30px rgba(0,0,0,0.16); }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.gallery-item:hover img { transform: scale(1.05); }
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(15,15,15,0.92);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}
.lightbox.is-open { display: flex; }
.lightbox img { max-width: 90vw; max-height: 85vh; border-radius: var(--radius-sm); }
.lightbox-close, .lightbox-prev, .lightbox-next {
  position: absolute;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.3);
  color: var(--color-white);
  border-radius: var(--radius-full);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: background-color 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}
.lightbox-close { top: 1.5rem; right: 1.5rem; }
.lightbox-close:hover { background: rgba(255,255,255,0.25); border-color: rgba(255,255,255,0.6); transform: scale(1.08); }
.lightbox-prev { left: 1.5rem; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 1.5rem; top: 50%; transform: translateY(-50%); }
.lightbox-prev:hover, .lightbox-next:hover { background: rgba(255,255,255,0.25); border-color: rgba(255,255,255,0.6); transform: translateY(-50%) scale(1.08); }

/* ============================================================
   CONTACT / BOOKING
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}
@media (min-width: 900px) {
  .contact-grid { grid-template-columns: 1fr 1fr; gap: 4rem; }
}
.info-list { margin-top: 2rem; display: flex; flex-direction: column; gap: 1.1rem; }
.info-list .label-sm {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-muted);
  display: block;
  margin-bottom: 0.25rem;
}
.info-list .value { font-size: 1.05rem; }
.info-list .value a { transition: color 0.25s ease; }
.info-list .value a:hover { color: var(--color-accent); }
.map-frame {
  border: 0;
  border-radius: var(--radius-md);
  width: 100%;
  height: 320px;
}
.tel-panel {
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  text-align: center;
}
.tel-panel .tel-number {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin: 1rem 0 1.75rem;
  display: block;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer { background: var(--color-green); color: var(--color-white); border-top: 3px solid var(--color-accent); padding: 3.5rem 0 2rem; }
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255,255,255,0.16);
  text-align: center;
}
@media (min-width: 700px) {
  .footer-grid { grid-template-columns: repeat(3, 1fr); text-align: left; }
}
.footer-grid h3 { font-size: 1.5rem; margin-bottom: 0.5rem; color: var(--color-white); }
.footer-grid .eyebrow { color: var(--color-accent-soft); }
.footer-grid p, .footer-grid a { color: rgba(255,255,255,0.82); font-size: 0.9rem; }
.footer-grid a { transition: color 0.25s ease; }
.footer-grid a:hover { color: var(--color-accent-soft); }
.footer-grid ul { display: flex; flex-direction: column; gap: 0.5rem; }
.footer-bottom { padding-top: 1.5rem; display: flex; flex-direction: column; gap: 0.4rem; text-align: center; }
.footer-bottom .label-sm {
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
}
.footer-bottom .label-sm a { color: var(--color-accent-soft); }
.footer-bottom .label-sm a:hover { text-decoration: underline; }

/* ============================================================
   HERO VIDEO + SOUND TOGGLE (band biểu diễn)
   ============================================================ */
.hero-media[data-video] { background: var(--color-ink); }
.sound-btn {
  position: absolute;
  z-index: 3;
  bottom: 1.75rem;
  right: 1.75rem;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.7rem 1.2rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255,255,255,0.4);
  background: rgba(12,12,14,0.42);
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  backdrop-filter: blur(4px);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}
.sound-btn:hover { background: rgba(12,12,14,0.66); }
.sound-btn.is-on { border-color: var(--color-accent); color: var(--color-accent-soft); }
.sound-btn .dot {
  width: 8px; height: 8px; border-radius: var(--radius-full);
  background: currentColor; opacity: 0.65;
}
.sound-btn.is-on .dot { opacity: 1; box-shadow: 0 0 0 4px rgba(154,53,36,0.28); }

/* ============================================================
   VIDEO GALLERY (clip dọc 9:16, hover preview, lightbox)
   ============================================================ */
/* Bộ lọc nhóm video */
.vfilters { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem; margin-bottom: 2.5rem; }
.vfilter {
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255,255,255,0.3);
  background: transparent;
  color: rgba(255,255,255,0.85);
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.vfilter:hover { border-color: var(--color-accent); color: var(--color-white); }
.vfilter.is-active { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-white); }

.vgrid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}
@media (min-width: 640px) { .vgrid { grid-template-columns: repeat(3, 1fr); gap: 1rem; } }
@media (min-width: 1000px) { .vgrid { grid-template-columns: repeat(4, 1fr); } }

.vcard {
  all: unset;
  box-sizing: border-box;
  display: block;
  cursor: pointer;
}
.vcard-media {
  position: relative;
  aspect-ratio: 9 / 16;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-ink);
}
.vcard-media img, .vcard-media video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.vcard-media .vprev { opacity: 0; transition: opacity 0.3s ease; }
.vcard.is-previewing .vprev { opacity: 1; }
.vcard-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.28) 0%, rgba(0,0,0,0) 34%, rgba(0,0,0,0) 60%, rgba(0,0,0,0.72) 100%);
  z-index: 2;
  pointer-events: none;
}
.vbadge {
  position: absolute;
  top: 0.7rem;
  left: 0.7rem;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-full);
  background: rgba(12,12,14,0.6);
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  backdrop-filter: blur(3px);
}
.vbadge .tri { border-style: solid; border-width: 5px 0 5px 8px; border-color: transparent transparent transparent currentColor; }
.vplay {
  position: absolute;
  z-index: 3;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  background: rgba(184,68,47,0.92);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.vplay .tri { border-style: solid; border-width: 8px 0 8px 13px; border-color: transparent transparent transparent currentColor; margin-left: 3px; }
.vcard:hover .vplay { opacity: 1; transform: translate(-50%, -50%) scale(1.06); }
.vcard-cap {
  margin-top: 0.75rem;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-ink);
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.vcard-meta { margin-top: 0.3rem; font-size: 0.74rem; color: var(--color-muted); letter-spacing: 0.02em; }

/* Gallery trên nền xanh lục (trang gallery + preview homepage) */
.on-dark { background: var(--color-green); }
.on-dark .eyebrow { color: rgba(255,255,255,0.7); }
.on-dark h2, .on-dark h3 { color: var(--color-white); }
.on-dark .section-lead { color: rgba(255,255,255,0.75); }
.on-dark .vcard-cap { color: #ececf0; }
.on-dark .vcard-meta { color: #9a9aa2; }

.section-lead {
  max-width: 40rem;
  color: var(--color-ink-soft);
  line-height: 1.85;
}
.center-head { text-align: center; }
.center-head .section-lead { margin-left: auto; margin-right: auto; }

/* Video lightbox */
.vlightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(8,8,10,0.94);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}
.vlightbox.is-open { display: flex; }
.vlightbox video { max-width: 100%; max-height: 88vh; border-radius: var(--radius-sm); background: #000; }
.vlightbox .lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.3);
  color: var(--color-white);
  border-radius: var(--radius-full);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: background-color 0.25s ease, transform 0.25s ease;
}
.vlightbox .lightbox-close:hover { background: rgba(255,255,255,0.25); transform: scale(1.08); }

/* ============================================================
   STATS ROW (trang giới thiệu)
   ============================================================ */
.stat-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-top: 2rem;
}
@media (min-width: 700px) { .stat-row { grid-template-columns: repeat(4, 1fr); } }
.stat-cell { background: var(--color-white); padding: 1.5rem 1.4rem; }
.stat-cell .num { font-family: var(--font-display); font-size: 2rem; font-weight: 300; color: var(--color-ink); line-height: 1; }
.stat-cell .lbl { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--color-accent); font-weight: 700; margin-top: 0.55rem; }

/* ============================================================
   BOOKING FORM (giữ theo yêu cầu khách - ngoại lệ Level 1)
   ============================================================ */
.booking-card {
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 2.2rem 2rem;
}
.booking-card h3 { font-size: 1.35rem; margin-bottom: 0.35rem; }
.booking-card .sub { font-size: 0.88rem; color: var(--color-muted); margin-bottom: 1.6rem; }
.field { margin-bottom: 1rem; }
.field label {
  display: block;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ink);
  margin-bottom: 0.45rem;
}
.field input, .field select, .field textarea {
  width: 100%;
  padding: 0.8rem 0.9rem;
  font-family: inherit;
  font-size: 0.92rem;
  color: var(--color-ink);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-bg-alt);
  transition: border-color 0.15s ease, background-color 0.15s ease;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--color-accent); background: var(--color-white); }
.field textarea { resize: vertical; min-height: 92px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 520px) { .field-row { grid-template-columns: 1fr; } }
.booking-card button[type=submit] { width: 100%; margin-top: 0.4rem; }
.booking-ok { display: none; text-align: center; padding: 1.5rem 0.5rem; }
.booking-ok.show { display: block; }
.booking-ok .tick {
  width: 56px; height: 56px; border-radius: var(--radius-full);
  background: var(--color-accent); color: var(--color-white);
  font-size: 1.5rem; display: flex; align-items: center; justify-content: center; margin: 0 auto 1rem;
}
.booking-ok h3 { color: var(--color-ink); }
.booking-ok p { font-size: 0.9rem; color: var(--color-muted); line-height: 1.7; margin-top: 0.5rem; }
.booking-ok .summary {
  background: var(--color-bg-alt); border: 1px solid var(--color-line);
  border-radius: var(--radius-sm); padding: 1rem; margin: 1.2rem 0;
  text-align: left; font-size: 0.88rem; color: var(--color-ink); line-height: 1.7;
}

/* Contact icon chip (SVG, không emoji) */
.contact-list { list-style: none; margin-top: 2rem; padding: 0; }
.contact-list li { display: flex; align-items: flex-start; gap: 0.9rem; padding: 1rem 0; border-top: 1px solid var(--color-line); }
.contact-list li:last-child { border-bottom: 1px solid var(--color-line); }
.contact-ic {
  flex: 0 0 40px; width: 40px; height: 40px; border-radius: var(--radius-full);
  background: var(--color-white); border: 1px solid var(--color-line);
  display: flex; align-items: center; justify-content: center; color: var(--color-accent);
}
.contact-list .k { font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--color-accent); font-weight: 700; display: block; }
.contact-list .v { font-family: var(--font-display); font-size: 1.05rem; color: var(--color-ink); margin-top: 0.15rem; display: inline-block; }
a.v:hover { color: var(--color-accent); }

/* ============================================================
   NHẠC CỤ DÂN TỘC (showcase 7 loại + tag mỗi section)
   ============================================================ */
/* Mobile: dải cuộn ngang, vuốt từng thẻ một. Âm lề 1.5rem cho dải chạy sát mép
   màn hình, phần padding bù lại giữ thẻ đầu/cuối thẳng hàng với chữ của section.
   Từ 720px trở lên quay về lưới bình thường. */
.inst-grid {
  display: flex;
  gap: 0.9rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-padding-left: 1.5rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  margin: 0 -1.5rem;
  padding: 0.25rem 1.5rem 1.25rem;
}
.inst-grid::-webkit-scrollbar { display: none; }
.inst-grid > .inst-card { flex: 0 0 76%; scroll-snap-align: start; }
@media (min-width: 720px) {
  .inst-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    overflow: visible;
    margin: 0;
    padding: 0;
  }
  .inst-grid > .inst-card { flex: none; }
}
@media (min-width: 1040px) { .inst-grid { grid-template-columns: repeat(4, 1fr); } }
.inst-card {
  position: relative;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-top: 3px solid var(--color-accent);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
/* Chỉ nhấc thẻ trên thiết bị có chuột. Trên mobile dải cuộn ngang có overflow
   nên thẻ nhấc lên sẽ bị cắt, mà chạm xong hover còn dính lại không nhả. */
@media (hover: hover) {
  .inst-card:hover { transform: translateY(-5px); box-shadow: 0 14px 30px rgba(20,88,74,0.12); }
}
/* Ảnh nhạc cụ chụp trên nền xanh lục sẵn nên để nền dự phòng cùng tông, lúc ảnh
   chưa tải xong không bị nháy ô trắng */
.inst-media { aspect-ratio: 4 / 3; background: var(--color-green-dark); overflow: hidden; }
.inst-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
@media (hover: hover) {
  .inst-card:hover .inst-media img { transform: scale(1.05); }
}
.inst-body { padding: 1.3rem 1.5rem 1.6rem; }
.inst-card .num { font-family: var(--font-display); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em; color: var(--color-accent-strong); }
.inst-card h3 { font-size: 1.2rem; margin: 0.5rem 0 0.6rem; color: var(--color-green); }
.inst-card p { font-size: 0.86rem; line-height: 1.7; color: var(--color-muted); }