/* ==========================================================================
   Saigon Park Stay - static site styles
   Hand authored, no build step. Tokens live in :root.
   ========================================================================== */

:root {
  /* ink + surface */
  --ink: #0f172a;
  --ink-soft: #475569;
  --ink-mute: #5b6b7f;  /* 5.1:1 on --surface */
  --ink-faint: #5f7085; /* 4.8:1 on --surface, used at 12-13px */
  --surface: #f6f8fa;
  --surface-raised: #fcfdfe;
  --surface-sunk: #eef2f6;
  --hairline: #e3e9ef;

  /* brand accent (single accent, two tints of the same green) */
  --accent: #00a85d;        /* large text, glyphs, borders */
  --accent-ink: #00713e;    /* small text: 6.1:1 on white */
  --accent-bright: #00df7e; /* gradient stop + fills only */
  --accent-alt: #fff41e;    /* gradient stop only */
  --accent-wash: rgba(0, 223, 126, 0.09);

  /* dark surfaces */
  --dark: #0b1120;
  --dark-soft: #121a2b;
  --on-dark: #cbd5e1;
  --on-dark-strong: #f1f5f9;

  /* one radius system */
  --r-xs: 8px;
  --r-sm: 12px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-pill: 999px;

  /* tinted shadows (slate hue, never pure black) */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 4px 16px -6px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 2px 4px rgba(15, 23, 42, 0.04), 0 14px 34px -10px rgba(15, 23, 42, 0.14);
  --shadow-accent: 0 6px 22px -6px rgba(0, 168, 93, 0.42);

  --container: 1160px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);

  --font-sans: "Plus Jakarta Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "Quicksand", ui-rounded, "Plus Jakarta Sans", system-ui, sans-serif;
}

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

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

body {
  margin: 0;
  background: var(--surface);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  overflow-wrap: break-word;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

h1, h2, h3 {
  margin: 0;
  letter-spacing: -0.02em;
  line-height: 1.15;
  text-wrap: balance;
}
p { margin: 0; text-wrap: pretty; }

:focus-visible {
  outline: 3px solid var(--accent-ink);
  outline-offset: 3px;
  border-radius: var(--r-xs);
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -64px;
  z-index: 200;
  background: var(--ink);
  color: var(--on-dark-strong);
  padding: 12px 20px;
  border-radius: var(--r-sm);
  font-weight: 700;
  text-decoration: none;
  transition: top 180ms var(--ease);
}
.skip-link:focus-visible { top: 16px; }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 20px;
}
.container-narrow { max-width: 760px; }

main { flex: 1 0 auto; }

/* ---------- brand wordmark ---------- */
.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.015em;
  font-size: 1.4rem;
  line-height: 1;
  white-space: nowrap;
}
.wordmark .w1 { color: #1f7a34; }
.wordmark .w2 { color: #6f9e26; }
.on-dark .wordmark .w1 { color: #64c95c; }
.on-dark .wordmark .w2 { color: #b7d95f; }

.brand-mark {
  width: 38px;
  height: 38px;
  flex: none;
  border-radius: var(--r-sm);
  background: linear-gradient(135deg, var(--accent-bright), var(--accent-alt));
  padding: 2px;
  box-shadow: var(--shadow-sm);
}
.brand-mark > span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  border-radius: 10px;
  background: var(--dark);
  color: var(--accent-bright);
}
.brand-mark svg { width: 20px; height: 20px; }

.brand-link {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  text-decoration: none;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 12px 26px;
  border-radius: var(--r-pill);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 180ms var(--ease), box-shadow 180ms var(--ease), background-color 180ms var(--ease), border-color 180ms var(--ease);
}
.btn svg { width: 18px; height: 18px; flex: none; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent-bright), var(--accent-alt));
  color: var(--ink);
}
.btn-primary:hover { box-shadow: var(--shadow-accent); transform: translateY(-2px); }
.btn-primary:active { transform: translateY(0) scale(0.985); }

.btn-ghost {
  background: transparent;
  border-color: var(--hairline);
  color: var(--ink);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-ink); background: var(--accent-wash); }
.btn-ghost:active { transform: scale(0.985); }

.btn-on-dark {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.32);
  color: #fff;
  backdrop-filter: blur(6px);
}
.btn-on-dark:hover { background: rgba(255, 255, 255, 0.16); border-color: rgba(255, 255, 255, 0.5); }
.btn-on-dark:active { transform: scale(0.985); }

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

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(252, 253, 254, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--hairline);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 68px;
}
.nav-desktop {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.94rem;
  font-weight: 600;
}
.nav-desktop a { color: var(--ink-soft); text-decoration: none; transition: color 160ms var(--ease); }
.nav-desktop a:hover { color: var(--ink); }
.nav-desktop a[aria-current="page"] { color: var(--accent-ink); }
.nav-desktop .btn { min-height: 42px; padding: 8px 22px; }

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--hairline);
  border-radius: var(--r-sm);
  background: var(--surface-raised);
  color: var(--ink);
  cursor: pointer;
}
.nav-toggle svg { width: 22px; height: 22px; }
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }

.nav-mobile {
  display: none;
  border-top: 1px solid var(--hairline);
  background: var(--surface-raised);
  padding: 8px 0 18px;
}
.nav-mobile.is-open { display: block; }
.nav-mobile a {
  display: block;
  padding: 13px 20px;
  font-weight: 600;
  color: var(--ink-soft);
  text-decoration: none;
  border-left: 3px solid transparent;
}
.nav-mobile a[aria-current="page"] {
  color: var(--accent-ink);
  border-left-color: var(--accent-bright);
  background: var(--accent-wash);
}
/* `.nav-mobile a` out-specifies `.btn`, so restore the button box explicitly */
.nav-mobile a.btn {
  display: flex;
  justify-content: center;
  margin: 14px 20px 0;
  padding: 12px 26px;
  border-left: 1px solid transparent;
  color: var(--ink);
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  isolation: isolate;
  background: var(--dark);
  color: #fff;
  overflow: hidden;
}
.hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
}
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 78% 66% at 50% 46%, rgba(6, 12, 26, 0.9) 0%, rgba(6, 12, 26, 0.7) 46%, rgba(6, 12, 26, 0.3) 76%, rgba(6, 12, 26, 0.12) 100%),
    linear-gradient(to top, rgba(6, 12, 26, 0.72) 0%, transparent 42%);
}
.hero-inner {
  padding: 92px 20px 104px;
  text-align: center;
  max-width: 780px;
  margin-inline: auto;
}
.hero-eyebrow {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #7cf0b7;
  background: rgba(6, 12, 26, 0.62);
  border: 1px solid rgba(255, 255, 255, 0.18);
  padding: 7px 15px;
  border-radius: var(--r-pill);
  margin-bottom: 22px;
}
.hero h1 {
  /* min sized so the Vietnamese headline holds 2 lines plus the brand line at 375px */
  font-size: clamp(1.85rem, 5.4vw, 3.6rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 18px;
}
.hero h1 .accent {
  font-family: var(--font-display);
  background: linear-gradient(100deg, var(--accent-bright), var(--accent-alt));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p {
  font-size: clamp(1rem, 1.9vw, 1.15rem);
  color: #e6ecf4;
  max-width: 56ch;
  margin: 0 auto 34px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

/* ---------- sections ---------- */
.section { padding: 72px 0; }
.section-tight { padding: 52px 0; }
.section-head {
  max-width: 620px;
  margin: 0 auto 44px;
  text-align: center;
}
.section-head h2 {
  font-size: clamp(1.6rem, 3.4vw, 2.15rem);
  font-weight: 800;
}
.section-head .rule {
  width: 48px;
  height: 4px;
  border-radius: var(--r-pill);
  background: linear-gradient(135deg, var(--accent-bright), var(--accent-alt));
  margin: 14px auto 0;
}
.section-head p { color: var(--ink-mute); margin-top: 14px; }

/* ---------- apartment grid ---------- */
.apt-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}
@media (min-width: 700px) {
  /* 4 listings read better as a 2x2 block than as a 3 wide row with one orphan */
  .apt-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 30px; }
  .apt-card-media { aspect-ratio: 16 / 10; }
}
.apt-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--surface-raised);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 220ms var(--ease), box-shadow 220ms var(--ease), border-color 220ms var(--ease);
}
/* one link covers the whole card, so the tap target is the card not the title */
.apt-card-body h3 a.stretched::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
}
.apt-card:focus-within {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}
.apt-card-body h3 a.stretched:focus-visible { outline: none; }
.apt-card:focus-within::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--r-lg);
  outline: 3px solid var(--accent-ink);
  outline-offset: 2px;
  pointer-events: none;
  z-index: 2;
}
.apt-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(0, 168, 93, 0.34);
}
.apt-card-media { aspect-ratio: 4 / 3; background: var(--surface-sunk); overflow: hidden; }
.apt-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 600ms var(--ease);
}
.apt-card:hover .apt-card-media img { transform: scale(1.04); }

.apt-card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 22px;
  gap: 14px;
}
.apt-card-body h3 { font-size: 1.2rem; font-weight: 700; }
.apt-card-body h3 a { text-decoration: none; }
.apt-card-body h3 a:hover { color: var(--accent-ink); }
.apt-summary { color: var(--ink-mute); font-size: 0.92rem; flex: 1; }

.spec-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--ink-soft);
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  padding: 11px 14px;
}
.spec-row span { display: inline-flex; align-items: center; gap: 6px; }
.spec-row svg { width: 17px; height: 17px; color: var(--accent-ink); flex: none; }

.apt-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--hairline);
}
.price {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.price-unit { display: block; font-size: 0.76rem; font-weight: 500; color: var(--ink-faint); }
.apt-card-foot .btn { min-height: 44px; padding: 10px 20px; font-size: 0.85rem; border-radius: var(--r-sm); }
.apt-card:hover .apt-card-foot .btn { border-color: var(--accent); color: var(--accent-ink); background: var(--accent-wash); }

/* ---------- feature band (distinct family from the card grid) ---------- */
.band { background: var(--surface-raised); border-block: 1px solid var(--hairline); }
.feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 34px 44px;
}
.feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.feature-icon {
  width: 46px;
  height: 46px;
  flex: none;
  display: grid;
  place-items: center;
  border-radius: var(--r-md);
  background: var(--accent-wash);
  color: var(--accent-ink);
}
.feature-icon svg { width: 23px; height: 23px; }
.feature h3 { font-size: 1.03rem; font-weight: 700; margin-bottom: 5px; }
.feature p { font-size: 0.9rem; color: var(--ink-mute); }

/* ---------- amenity chips ---------- */
.chip-row { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 15px;
  border-radius: var(--r-pill);
  border: 1px solid var(--hairline);
  background: var(--surface-raised);
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--ink-soft);
}
.chip svg { width: 17px; height: 17px; color: var(--accent-ink); flex: none; }

/* ---------- prose ---------- */
.prose h2 { font-size: clamp(1.45rem, 3vw, 1.9rem); font-weight: 800; margin-bottom: 18px; }
.prose p { color: var(--ink-soft); margin-bottom: 16px; max-width: 65ch; }
.prose p:last-child { margin-bottom: 0; }
.prose strong { color: var(--ink); font-weight: 700; }

/* ---------- FAQ (native details, works without JS) ---------- */
.faq-list { display: flex; flex-direction: column; gap: 10px; }
.faq-item {
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  background: var(--surface-raised);
  overflow: hidden;
}
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 17px 20px;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  min-height: 56px;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { background: var(--surface); }
.faq-item summary svg {
  width: 20px;
  height: 20px;
  flex: none;
  color: var(--accent-ink);
  transition: transform 200ms var(--ease);
}
.faq-item[open] summary svg { transform: rotate(180deg); }
.faq-a {
  padding: 0 20px 19px;
  color: var(--ink-soft);
  font-size: 0.94rem;
  max-width: 68ch;
}

/* ---------- contact cards ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  padding: 30px 22px;
  background: var(--surface-raised);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
  transition: transform 200ms var(--ease), box-shadow 200ms var(--ease), border-color 200ms var(--ease);
}
.contact-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(0, 168, 93, 0.34);
}
.contact-card .feature-icon { width: 52px; height: 52px; }
.contact-card .feature-icon img { width: 27px; height: 27px; }
.contact-card h2 { font-size: 1.05rem; font-weight: 800; }
.contact-card .label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.contact-value {
  font-size: 1.12rem;
  font-weight: 800;
  color: var(--accent-ink);
  text-decoration: none;
  font-variant-numeric: tabular-nums;
  margin-top: auto;
}
.contact-value:hover { color: var(--ink); }
.contact-value.is-plain { color: var(--ink-soft); font-size: 0.92rem; font-weight: 600; }
.contact-value.is-zalo { color: #0b62c4; }
.contact-value.is-email { font-size: 0.95rem; word-break: break-all; }

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--dark);
  color: var(--on-dark-strong);
  border-radius: var(--r-lg);
  padding: 44px 32px;
  text-align: center;
  box-shadow: var(--shadow-md);
}
.cta-band h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); font-weight: 800; color: #fff; }
.cta-band p { color: var(--on-dark); margin: 12px auto 26px; max-width: 52ch; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }

/* ---------- apartment detail ---------- */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink-mute);
  text-decoration: none;
  margin-bottom: 22px;
}
.back-link:hover { color: var(--ink); }
.back-link svg { width: 17px; height: 17px; }

.detail-hero {
  border-radius: var(--r-lg);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--surface-sunk);
  box-shadow: var(--shadow-sm);
  margin-bottom: 32px;
}
.detail-hero img { width: 100%; height: 100%; object-fit: cover; }

.detail-title { margin-bottom: 30px; }
.detail-title h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 10px;
}
.detail-address {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-mute);
  font-size: 0.94rem;
}
.detail-address svg { width: 17px; height: 17px; color: var(--accent-ink); flex: none; }

.detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  align-items: start;
}
.detail-main { display: flex; flex-direction: column; gap: 30px; }
.detail-main h2 { font-size: 1.28rem; font-weight: 800; margin-bottom: 14px; }
.detail-main .prose p { font-size: 0.98rem; }

.spec-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 26px;
  padding: 18px 0;
  border-block: 1px solid var(--hairline);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink-soft);
}
.spec-strip span { display: inline-flex; align-items: center; gap: 9px; }
.spec-strip svg { width: 20px; height: 20px; color: var(--accent-ink); flex: none; }
.spec-strip b { color: var(--ink); }

.booking-card {
  background: var(--surface-raised);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  padding: 26px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.booking-card .label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-faint);
  display: block;
  margin-bottom: 4px;
}
.booking-price {
  font-size: 2.05rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  font-variant-numeric: tabular-nums;
}
.booking-price small { font-size: 0.9rem; font-weight: 500; color: var(--ink-mute); letter-spacing: 0; }
.booking-note { font-size: 0.82rem; color: var(--ink-mute); text-align: center; }
.booking-card hr { border: 0; border-top: 1px solid var(--hairline); margin: 0; }

.support-box {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 15px;
  border-radius: var(--r-md);
  background: var(--accent-wash);
  border: 1px solid rgba(0, 168, 93, 0.18);
}
.support-box .feature-icon { width: 40px; height: 40px; background: rgba(0, 168, 93, 0.14); }
.support-box .feature-icon svg { width: 20px; height: 20px; }
.support-box a { font-weight: 800; color: var(--ink); text-decoration: none; font-variant-numeric: tabular-nums; }
.support-box a:hover { color: var(--accent-ink); }

.other-apts { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 22px; }

/* ---------- footer ---------- */
.site-footer {
  background: var(--dark);
  color: var(--on-dark);
  margin-top: 72px;
  border-top: 1px solid var(--dark-soft);
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 40px;
  padding: 56px 0;
}
.footer-grid h3 {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 16px;
}
.footer-grid p { font-size: 0.9rem; max-width: 42ch; margin-top: 16px; }
.footer-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 11px; font-size: 0.9rem; }
.footer-list li { display: flex; align-items: flex-start; gap: 9px; }
.footer-list svg { width: 17px; height: 17px; color: var(--accent-bright); flex: none; margin-top: 3px; }
.footer-list a { color: var(--on-dark); text-decoration: none; }
.footer-list a:hover { color: #fff; text-decoration: underline; }
.footer-bottom {
  border-top: 1px solid var(--dark-soft);
  padding: 20px 0;
  text-align: center;
  font-size: 0.8rem;
  color: #7d8ba1;
}

/* ---------- floating Zalo ---------- */
.zalo-float {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 80;
  width: 56px;
  height: 56px;
  border-radius: var(--r-pill);
  background: var(--surface-raised);
  box-shadow: 0 8px 26px rgba(11, 98, 196, 0.34);
  display: grid;
  place-items: center;
  overflow: visible;
}
.zalo-float img { width: 100%; height: 100%; border-radius: var(--r-pill); object-fit: cover; }
.zalo-float::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--r-pill);
  background: rgba(11, 98, 196, 0.34);
  z-index: -1;
  animation: zalo-ripple 2.6s ease-out infinite;
}
@keyframes zalo-ripple {
  0% { transform: scale(0.96); opacity: 0.8; }
  70% { transform: scale(1.45); opacity: 0; }
  100% { transform: scale(1.45); opacity: 0; }
}

/* ---------- 404 ---------- */
.notfound { text-align: center; padding: 96px 0; }
.notfound .code {
  font-family: var(--font-display);
  font-size: clamp(3.4rem, 12vw, 6rem);
  font-weight: 700;
  line-height: 1;
  background: linear-gradient(135deg, var(--accent-bright), var(--accent-alt));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.notfound h1 { font-size: clamp(1.4rem, 4vw, 2rem); font-weight: 800; margin: 16px 0 12px; }
.notfound p { color: var(--ink-mute); margin-bottom: 28px; }

/* ---------- notice ---------- */
.notice {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 15px 18px;
  border-radius: var(--r-md);
  background: #fff8e6;
  border: 1px solid #f2dfae;
  color: #6b4e07;
  font-size: 0.88rem;
}
.notice svg { width: 19px; height: 19px; flex: none; margin-top: 2px; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (min-width: 900px) {
  .section { padding: 88px 0; }
  .hero-inner { padding: 116px 20px 128px; }
  .detail-layout { grid-template-columns: minmax(0, 2fr) minmax(300px, 1fr); gap: 46px; }
  .booking-card { position: sticky; top: 92px; }
}

@media (max-width: 899px) {
  .nav-desktop { display: none; }
  .nav-toggle { display: inline-flex; }
}

@media (max-width: 420px) {
  .hero-actions .btn, .cta-actions .btn { width: 100%; }
  .apt-card-foot { flex-direction: column; align-items: stretch; }
  .apt-card-foot .btn { width: 100%; }
}

/* ==========================================================================
   Motion preferences
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .zalo-float::before { display: none; }
}