/* HÀ THÀNH Barber — "Phố cổ" design tokens + components */
:root {
  --color-primary: #202c29;
  --color-primary-dark: #151e1b;
  --color-secondary: #b68a52;
  --color-secondary-soft: #d2ad78;
  --color-accent: #713d32;
  --color-accent-dark: #5a2f26;
  --color-background: #f2ebdd;
  --color-surface: #fcfaf5;
  --color-text: #191b19;
  --color-text-muted: #6b675e;
  --color-border: #d8d3c9;
  --color-on-dark: #f2ebdd;
  --color-on-dark-muted: #b9b3a5;
  --color-line-dark: rgba(242, 235, 221, 0.16);
  --color-zalo: #0068ff;

  --font-display: "Playfair Display", "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --font-body: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --fs-xs: 0.78rem;
  --fs-sm: 0.9rem;
  --fs-base: 1rem;
  --fs-lg: 1.15rem;
  --fs-h3: clamp(1.35rem, 1.1rem + 0.9vw, 1.75rem);
  --fs-h2: clamp(2.1rem, 1.4rem + 3vw, 3.6rem);
  --fs-h1: clamp(2.7rem, 1.4rem + 5.6vw, 6rem);

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: clamp(3.5rem, 2rem + 6vw, 7rem);

  --radius: 6px;
  --radius-pill: 999px;
  --arch: 999px 999px 0 0;
  --line-dark: 1px solid var(--color-line-dark);
  --line-brass: 1.5px solid var(--color-secondary);
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --dur: 0.4s;
  --header-h: 72px;
  --container: 1240px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); }
body {
  margin: 0; font-family: var(--font-body); font-size: var(--fs-base); line-height: 1.65;
  color: var(--color-on-dark); background: var(--color-primary-dark); -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 800; line-height: 1.12; margin: 0; letter-spacing: -0.01em; }
p { margin: 0 0 var(--space-2); }
.container { width: min(100% - 32px, var(--container)); margin-inline: auto; }
.section { padding-block: var(--space-5); scroll-margin-top: calc(var(--header-h) + 12px); position: relative; }
.section--green { background: var(--color-primary); }
.section--paper { background: var(--color-background); color: var(--color-text); }
.section--paper h2, .section--paper h3 { color: var(--color-primary); }

.kicker { display: inline-flex; align-items: center; gap: 12px; font-size: var(--fs-xs); font-weight: 600; letter-spacing: 0.22em; text-transform: uppercase; color: var(--color-secondary); margin-bottom: var(--space-2); }
.kicker::before { content: ""; width: 28px; height: 2px; background: currentColor; }
.section--paper .kicker { color: var(--color-accent); }
.section-head { max-width: 680px; margin-bottom: var(--space-4); }
.section-head h2 { font-size: var(--fs-h2); }
.section-head p { color: var(--color-on-dark-muted); margin-top: var(--space-2); font-size: var(--fs-lg); }
.section--paper .section-head p { color: var(--color-text-muted); }
em.brass { font-style: italic; color: var(--color-secondary); font-weight: 600; }

/* Buttons */
.btn {
  position: relative; overflow: hidden; isolation: isolate;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 0 28px; border: 1.5px solid var(--color-secondary); border-radius: var(--radius-pill);
  background: var(--color-secondary); color: var(--color-primary-dark);
  font-family: var(--font-body); font-size: var(--fs-sm); font-weight: 600; letter-spacing: 0.01em; cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.btn:hover { background: var(--color-secondary-soft); border-color: var(--color-secondary-soft); }
.btn--outline { background: transparent; color: var(--color-on-dark); border-color: rgba(242, 235, 221, 0.5); }
.btn--outline:hover { background: rgba(242, 235, 221, 0.08); border-color: var(--color-on-dark); }
.btn--dark { background: var(--color-primary); border-color: var(--color-primary); color: var(--color-on-dark); }
.btn--dark:hover { background: var(--color-primary-dark); border-color: var(--color-primary-dark); }
.btn--sm { min-height: 44px; padding: 0 20px; }
.btn .wave { position: absolute; z-index: -1; border-radius: 50%; pointer-events: none; background: rgba(21, 30, 27, 0.22); transform: scale(0); animation: wave 0.9s var(--ease) forwards; }
.btn--outline .wave { background: rgba(182, 138, 82, 0.35); }
.btn--dark .wave { background: rgba(182, 138, 82, 0.4); }
@keyframes wave { to { transform: scale(1); opacity: 0; } }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(21, 30, 27, 0.94); backdrop-filter: blur(10px); border-bottom: var(--line-dark); }
.header-inner { height: var(--header-h); display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); }
.logo img { height: 46px; width: auto; }
@media (max-width: 480px) { .logo img { height: 34px; } }
.nav { display: none; align-items: center; gap: 28px; }
.nav a { font-size: var(--fs-sm); font-weight: 500; color: var(--color-on-dark-muted); padding: 6px 0; position: relative; transition: color var(--dur) var(--ease); }
.nav a::after { content: ""; position: absolute; left: 50%; bottom: -4px; width: 5px; height: 5px; border-radius: 50%; background: var(--color-secondary); transform: translateX(-50%) scale(0); transition: transform var(--dur) var(--ease); }
.nav a:hover, .nav a.active { color: var(--color-on-dark); }
.nav a:hover::after, .nav a.active::after { transform: translateX(-50%) scale(1); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.header-cta { display: none; }
.menu-toggle { width: 46px; height: 46px; border: 1.5px solid var(--color-line-dark); border-radius: 50%; background: transparent; color: var(--color-on-dark); font-size: 1.4rem; cursor: pointer; display: grid; place-items: center; }
.mobile-menu { position: absolute; left: 0; right: 0; top: 100%; background: var(--color-primary); border-bottom: var(--line-dark); max-height: calc(100vh - var(--header-h) - 16px); overflow-y: auto; padding: var(--space-1) 16px var(--space-3); display: none; }
.mobile-menu.open { display: block; }
.mobile-menu a:not(.btn) { display: block; padding: 15px 4px; border-bottom: var(--line-dark); font-family: var(--font-display); font-size: 1.25rem; font-weight: 700; }
.mobile-menu .btn { width: 100%; margin-top: var(--space-2); }
@media (min-width: 1041px) {
  .nav { display: flex; }
  .header-cta { display: inline-flex; }
  .menu-toggle, .mobile-menu { display: none !important; }
}

/* Hero */
.hero { position: relative; overflow: hidden; background: radial-gradient(120% 90% at 85% 10%, #2a3a36 0%, var(--color-primary-dark) 60%); }
.hero-grid { display: grid; gap: var(--space-4); padding-block: var(--space-4) var(--space-5); align-items: center; }
@media (min-width: 960px) { .hero-grid { grid-template-columns: 1.15fr 0.85fr; gap: var(--space-5); min-height: min(86vh, 780px); } }
.plaque { display: inline-flex; align-items: center; gap: 10px; padding: 8px 16px; background: var(--color-accent); border: 2px solid var(--color-secondary); outline: 2px solid var(--color-accent); outline-offset: 3px; border-radius: 4px; font-size: var(--fs-xs); font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--color-on-dark); margin-bottom: var(--space-3); }
.hero h1 { font-size: var(--fs-h1); line-height: 1.02; }
.hero .lead { font-size: var(--fs-lg); color: var(--color-on-dark-muted); max-width: 520px; margin-top: var(--space-3); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: var(--space-4); }
.hero-facts { display: flex; flex-wrap: wrap; gap: var(--space-3) var(--space-4); margin-top: var(--space-4); padding-top: var(--space-3); border-top: var(--line-dark); }
.hero-facts div { display: flex; flex-direction: column; }
.hero-facts small { font-size: var(--fs-xs); letter-spacing: 0.2em; text-transform: uppercase; color: var(--color-secondary); }
.hero-facts b { font-family: var(--font-display); font-size: 1.25rem; font-weight: 700; }
.hero-arch { position: relative; justify-self: center; width: min(100%, 440px); }
.hero-arch::before { content: ""; position: absolute; inset: 18px -18px -18px 18px; border: var(--line-brass); border-radius: var(--arch); }
.hero-arch img { position: relative; width: 100%; aspect-ratio: 3 / 4; object-fit: cover; object-position: 50% 30%; border-radius: var(--arch); }

/* Marquee */
.marquee { background: var(--color-secondary); color: var(--color-primary-dark); overflow: hidden; border-block: 2px solid var(--color-primary-dark); }
.marquee-track { display: flex; width: max-content; animation: marquee 38s linear infinite; }
.marquee-track span { display: inline-flex; align-items: center; gap: 28px; padding: 14px 28px 14px 0; font-family: var(--font-display); font-style: italic; font-weight: 700; font-size: 1.15rem; white-space: nowrap; }
.marquee-track span::after { content: "✦"; font-style: normal; font-size: 0.8rem; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* Service menu board */
.menu-board { display: grid; gap: var(--space-4); }
@media (min-width: 960px) { .menu-board { grid-template-columns: 1.25fr 0.75fr; gap: var(--space-5); align-items: start; } }
.tabs { display: flex; flex-wrap: wrap; gap: 8px 26px; margin-bottom: var(--space-3); border-bottom: 1.5px solid var(--color-primary); }
.tab { min-height: 44px; padding: 0 2px; background: none; border: 0; border-bottom: 4px solid transparent; margin-bottom: -1.5px; font-family: var(--font-display); font-size: 1.15rem; font-weight: 700; color: var(--color-text-muted); cursor: pointer; transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease); }
.tab[aria-selected="true"] { color: var(--color-primary); border-bottom-color: var(--color-accent); }
.menu-row { display: grid; grid-template-columns: 76px 1fr; gap: 4px 16px; align-items: center; padding: 18px 0; border-bottom: 1px dashed rgba(32, 44, 41, 0.35); }
.menu-thumb { grid-row: span 2; width: 76px; aspect-ratio: 3 / 4; object-fit: cover; border-radius: var(--arch); }
.menu-body h3 { font-size: var(--fs-h3); }
.menu-body h3 a { background: linear-gradient(currentColor, currentColor) 0 100% / 0 2px no-repeat; transition: background-size var(--dur) var(--ease); }
.menu-row:hover h3 a, .menu-row:focus-within h3 a { background-size: 100% 2px; }
.menu-body p { margin: 4px 0 0; color: var(--color-text-muted); font-size: var(--fs-sm); }
.menu-actions { grid-column: 2; display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-top: 8px; }
.menu-no { display: none; font-family: var(--font-display); font-style: italic; font-weight: 600; font-size: 1.4rem; color: var(--color-accent); }
.link-line { font-size: var(--fs-sm); font-weight: 600; color: var(--color-accent); display: inline-flex; align-items: center; gap: 6px; padding: 10px 0; }
.menu-preview { display: none; }
@media (min-width: 960px) {
  .menu-row { grid-template-columns: 44px 1fr auto; padding: 22px 0; }
  .menu-thumb { display: none; }
  .menu-no { display: block; }
  .menu-actions { grid-column: auto; margin: 0; }
  .menu-preview { display: block; position: sticky; top: calc(var(--header-h) + 24px); }
  .menu-preview::before { content: ""; position: absolute; inset: 16px -16px -16px 16px; border: 1.5px solid var(--color-accent); border-radius: var(--arch); }
  .menu-preview img { position: relative; width: 100%; aspect-ratio: 3 / 4; object-fit: cover; border-radius: var(--arch); transition: opacity 0.35s var(--ease); }
  .menu-preview img.swap { opacity: 0; }
}

/* Story */
.story-grid { display: grid; gap: var(--space-4); align-items: center; }
@media (min-width: 960px) { .story-grid { grid-template-columns: 0.8fr 1.2fr; gap: var(--space-5); } }
.story-arch { justify-self: center; width: min(100%, 400px); position: relative; }
.story-arch img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; border-radius: var(--arch); }
.story-arch::after { content: ""; position: absolute; inset: -14px; border: var(--line-brass); border-radius: var(--arch); pointer-events: none; }
.story h2 { font-size: var(--fs-h2); }
.story .quote { font-family: var(--font-display); font-style: italic; font-size: clamp(1.3rem, 1rem + 1.2vw, 1.8rem); line-height: 1.4; color: var(--color-secondary-soft); margin: var(--space-3) 0; padding-left: var(--space-3); border-left: 3px solid var(--color-secondary); }
.story p { color: var(--color-on-dark-muted); }
.pillars { display: grid; gap: var(--space-3); margin-top: var(--space-4); }
@media (min-width: 640px) { .pillars { grid-template-columns: repeat(3, 1fr); } }
.pillar b { display: block; font-family: var(--font-display); font-size: 2.6rem; line-height: 1; color: transparent; -webkit-text-stroke: 1.2px var(--color-secondary); margin-bottom: 8px; }
.pillar h3 { font-size: 1.15rem; }
.pillar p { font-size: var(--fs-sm); margin-top: 6px; }

/* Process */
.steps-row { display: grid; gap: var(--space-4) var(--space-3); counter-reset: st; }
@media (min-width: 900px) { .steps-row { grid-template-columns: repeat(4, 1fr); gap: var(--space-4); } }
.step { position: relative; padding-top: var(--space-3); border-top: 2px solid var(--color-accent); }
.step::before { counter-increment: st; content: counter(st); position: absolute; top: -20px; left: 0; width: 38px; height: 38px; border-radius: 50%; background: var(--color-accent); color: var(--color-on-dark); display: grid; place-items: center; font-family: var(--font-display); font-weight: 800; }
.step h3 { font-size: 1.3rem; margin-top: 8px; }
.step p { color: var(--color-text-muted); font-size: var(--fs-sm); margin-top: 6px; }

/* Gallery strip */
.strip { display: flex; gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory; padding: 8px 16px 24px; scrollbar-width: thin; scrollbar-color: var(--color-secondary) transparent; }
.strip figure { flex: 0 0 auto; width: min(68vw, 300px); margin: 0; scroll-snap-align: center; }
.strip figure:nth-child(even) { margin-top: 44px; }
.strip img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; border-radius: var(--arch); filter: saturate(0.92); transition: transform 0.8s var(--ease); }
.strip figure:hover img { transform: translateY(-6px); }
@media (min-width: 1300px) { .strip { padding-inline: calc((100vw - var(--container)) / 2); } }

/* Team */
.team-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-3) var(--space-2); }
@media (min-width: 900px) { .team-row { grid-template-columns: repeat(5, 1fr); gap: var(--space-3); } }
.team-card { text-align: center; }
.team-card img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; object-position: center 20%; border-radius: var(--arch); }
.team-card h3 { font-size: 1.25rem; margin-top: var(--space-2); }
.team-card span { font-size: var(--fs-xs); letter-spacing: 0.2em; text-transform: uppercase; color: var(--color-secondary); font-weight: 600; }

/* Reviews */
.review-wall { columns: 1; column-gap: var(--space-3); }
@media (min-width: 700px) { .review-wall { columns: 2; } }
@media (min-width: 1040px) { .review-wall { columns: 3; } }
.review { break-inside: avoid; margin: 0 0 var(--space-3); padding: var(--space-3); background: var(--color-surface); color: var(--color-text); border-radius: var(--radius); position: relative; }
.review:nth-child(3n+2) { background: var(--color-background); }
.review::before { content: "“"; position: absolute; top: 4px; right: 18px; font-family: var(--font-display); font-size: 5rem; line-height: 1; color: var(--color-secondary); opacity: 0.55; }
.stars { color: var(--color-secondary); display: flex; gap: 2px; margin-bottom: 10px; }
.review p { font-size: var(--fs-sm); margin: 0 0 var(--space-2); }
.review footer { display: flex; align-items: center; gap: 12px; }
.review footer img { width: 44px; height: 56px; object-fit: cover; object-position: center 20%; border-radius: var(--arch); }
.review cite { font-style: normal; font-family: var(--font-display); font-weight: 700; color: var(--color-primary); }
.review-wall .extra { display: none; }
.review-wall.open .extra { display: block; }
.center { text-align: center; margin-top: var(--space-3); }

/* Contact */
.contact-grid { display: grid; gap: var(--space-4); align-items: stretch; }
@media (min-width: 960px) { .contact-grid { grid-template-columns: 0.9fr 1.1fr; gap: var(--space-5); } }
.sign { display: inline-block; padding: 18px 26px; background: var(--color-accent); border: 3px solid var(--color-secondary); outline: 3px solid var(--color-accent); outline-offset: 4px; border-radius: 6px; text-align: center; margin: 4px 4px var(--space-3); }
.sign b { display: block; font-family: var(--font-display); font-size: clamp(1.6rem, 1.2rem + 1.6vw, 2.4rem); font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; line-height: 1.1; }
.sign span { font-size: var(--fs-xs); letter-spacing: 0.24em; text-transform: uppercase; color: var(--color-secondary-soft); }
.contact-list { list-style: none; padding: 0; margin: 0 0 var(--space-3); }
.contact-list li { display: flex; gap: 14px; padding: 14px 0; border-bottom: var(--line-dark); align-items: flex-start; }
.contact-list i { color: var(--color-secondary); font-size: 1.3rem; }
.contact-list a:hover { color: var(--color-secondary-soft); }
.socials { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: var(--space-3); }
.socials a { width: 46px; height: 46px; border: 1.5px solid var(--color-line-dark); border-radius: 50%; display: grid; place-items: center; font-size: 1.25rem; transition: all var(--dur) var(--ease); }
.socials a:hover { background: var(--color-secondary); border-color: var(--color-secondary); color: var(--color-primary-dark); }
.map { width: 100%; min-height: 380px; height: 100%; border: 0; border-radius: var(--arch); filter: sepia(0.35) saturate(0.8) brightness(0.92); }

/* Footer */
.site-footer { background: #0f1614; color: var(--color-on-dark-muted); padding: var(--space-2) 0; font-size: var(--fs-sm); border-top: 3px solid var(--color-secondary); }
.footer-inner { display: flex; flex-direction: column; gap: 4px; align-items: center; text-align: center; }
@media (min-width: 768px) { .footer-inner { flex-direction: row; justify-content: space-between; text-align: left; } }

/* Service detail */
.detail-hero { background: var(--color-primary); padding-bottom: var(--space-4); }
.breadcrumb { font-size: var(--fs-sm); color: var(--color-on-dark-muted); padding-block: var(--space-3); }
.breadcrumb a { text-decoration: underline; text-underline-offset: 3px; }
.detail-head { display: grid; gap: var(--space-4); align-items: center; }
@media (min-width: 900px) { .detail-head { grid-template-columns: 0.8fr 1.2fr; gap: var(--space-5); } }
.detail-arch { justify-self: center; width: min(100%, 360px); position: relative; }
.detail-arch::before { content: ""; position: absolute; inset: 14px -14px -14px 14px; border: var(--line-brass); border-radius: var(--arch); }
.detail-arch img { position: relative; width: 100%; aspect-ratio: 3 / 4; object-fit: cover; border-radius: var(--arch); }
.detail-info h1 { font-size: var(--fs-h2); margin: var(--space-1) 0 var(--space-2); }
.detail-info p { color: var(--color-on-dark-muted); font-size: var(--fs-lg); max-width: 560px; }
.chip { display: inline-block; padding: 6px 16px; border: 1.5px solid var(--color-secondary); border-radius: var(--radius-pill); font-size: var(--fs-xs); font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--color-secondary); margin-bottom: var(--space-2); }
.detail-body { background: var(--color-background); color: var(--color-text); padding-block: var(--space-5); }
.detail-body h2 { color: var(--color-primary); font-size: var(--fs-h3); margin-bottom: var(--space-2); }
.detail-cols { display: grid; gap: var(--space-4); }
@media (min-width: 900px) { .detail-cols { grid-template-columns: 1fr 1fr; gap: var(--space-5); } }
.detail-block { margin-bottom: var(--space-4); }
.steps { list-style: none; padding: 0; margin: 0; counter-reset: s; display: grid; gap: 4px; }
.steps li { counter-increment: s; display: flex; align-items: center; gap: 16px; padding: 14px 0; border-bottom: 1px dashed rgba(32, 44, 41, 0.35); }
.steps li::before { content: counter(s); flex: none; width: 36px; height: 36px; border-radius: 50%; background: var(--color-accent); color: var(--color-on-dark); display: grid; place-items: center; font-family: var(--font-display); font-weight: 800; }
.ticks { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.ticks li { display: flex; gap: 12px; align-items: flex-start; }
.ticks i { color: var(--color-accent); margin-top: 3px; }
details { border-bottom: 1px dashed rgba(32, 44, 41, 0.35); padding: 14px 0; }
summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--color-accent); font-size: 1.4rem; line-height: 1; }
details[open] summary::after { content: "–"; }
details p { margin: 10px 0 0; color: var(--color-text-muted); }
.related { background: var(--color-primary); padding-block: var(--space-5); }
.related h2 { font-size: var(--fs-h3); margin-bottom: var(--space-3); }
.related-grid { display: grid; gap: var(--space-3); grid-template-columns: repeat(3, 1fr); }
.related-card { display: block; text-align: center; }
.related-card img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; border-radius: var(--arch); margin-bottom: var(--space-2); transition: transform 0.6s var(--ease); }
.related-card:hover img { transform: translateY(-6px); }
.related-card h3 { font-size: 1.05rem; }
.sticky-book { position: fixed; left: 0; right: 0; bottom: 0; z-index: 40; padding: 10px 16px; background: rgba(21, 30, 27, 0.96); border-top: var(--line-dark); display: flex; }
.sticky-book .btn { width: 100%; }
@media (min-width: 900px) { .sticky-book { display: none; } }
body.has-sticky-book { padding-bottom: 68px; }
@media (min-width: 900px) { body.has-sticky-book { padding-bottom: 0; } }

/* Floating buttons */
.to-top { position: fixed; right: 16px; bottom: 84px; z-index: 45; width: 54px; height: 54px; border-radius: 50%; border: 0; padding: 0; cursor: pointer; background: conic-gradient(var(--color-secondary) var(--p, 0%), rgba(242, 235, 221, 0.2) 0); display: grid; place-items: center; opacity: 0; visibility: hidden; transform: translateY(12px); transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), visibility var(--dur); }
.to-top::before { content: ""; position: absolute; inset: 3px; border-radius: 50%; background: var(--color-primary); }
.to-top i { position: relative; color: var(--color-on-dark); font-size: 1.3rem; }
.to-top.show { opacity: 1; visibility: visible; transform: none; }
.zalo-fab { position: fixed; right: 16px; bottom: 16px; z-index: 45; width: 56px; height: 56px; border-radius: 50%; background: var(--color-zalo); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 0.8rem; animation: ring-shake 3s ease-in-out infinite; }
.zalo-fab::before, .zalo-fab::after { content: ""; position: absolute; inset: 0; border-radius: 50%; border: 2px solid var(--color-zalo); animation: ring 2s ease-out infinite; }
.zalo-fab::after { animation-delay: 1s; }
@keyframes ring { from { transform: scale(1); opacity: 0.7; } to { transform: scale(1.7); opacity: 0; } }
@keyframes ring-shake { 0%, 78%, 100% { transform: rotate(0); } 82% { transform: rotate(-12deg); } 86% { transform: rotate(12deg); } 90% { transform: rotate(-8deg); } 94% { transform: rotate(8deg); } }
body.has-sticky-book .zalo-fab { bottom: 80px; }
body.has-sticky-book .to-top { bottom: 148px; }
@media (min-width: 900px) { body.has-sticky-book .zalo-fab { bottom: 16px; } body.has-sticky-book .to-top { bottom: 84px; } }

.toast { position: fixed; left: 50%; bottom: 90px; transform: translate(-50%, 20px); z-index: 60; background: var(--color-secondary); color: var(--color-primary-dark); padding: 14px 22px; border-radius: var(--radius-pill); opacity: 0; visibility: hidden; transition: all var(--dur) var(--ease); font-size: var(--fs-sm); font-weight: 500; max-width: calc(100% - 32px); }
.toast.show { opacity: 1; visibility: visible; transform: translate(-50%, 0); }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn .wave { display: none; }
  .marquee-track, .zalo-fab, .zalo-fab::before, .zalo-fab::after { animation: none; }
  .strip img, .related-card img, .menu-preview img { transition: none; }
}

.contact-grid .kicker { display: flex; }