@import url('https://fonts.googleapis.com/css2?family=Lora:wght@500;600;700&family=Open+Sans:wght@400;600;700;800&display=swap');

:root {
  --yt-forest: #173f35;
  --yt-green: #2d6a4f;
  --yt-green-soft: #dfece4;
  --yt-cream: #f7f2e8;
  --yt-paper: #fffdf8;
  --yt-ink: #26332e;
  --yt-muted: #66736d;
  --yt-gold: #c99b55;
  --yt-rust: #a75d3b;
  --yt-line: rgba(38, 51, 46, .14);
  --yt-shadow: 0 18px 46px rgba(23, 63, 53, .12);
  --yt-space-1: 8px;
  --yt-space-2: 16px;
  --yt-space-3: 24px;
  --yt-space-4: 40px;
  --yt-radius: 4px;
}

html { scroll-behavior: smooth; }
body.yt-unified { color: var(--yt-ink); font-family: 'Open Sans', sans-serif; }
body.yt-unified :where(h1, h2, .yt-serif) { text-wrap: balance; }
body.yt-unified :where(h1, h2, h3) { font-family: 'Lora', serif; }
:where(body.yt-unified img) { max-width: 100%; }
body.yt-unified .yt-legacy-hidden { display: none !important; }
body.yt-unified > footer:not(.yt-site-footer) { display: none !important; }
.yt-sr-only { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0, 0, 0, 0) !important; white-space: nowrap !important; border: 0 !important; }

.yt-site-header {
  position: sticky;
  top: 0;
  z-index: 9990;
  border-bottom: 1px solid var(--yt-line);
  background: rgba(255, 253, 248, .96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.yt-nav {
  width: min(1160px, calc(100% - 36px));
  min-height: 72px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.yt-brand {
  flex: 0 0 auto;
  color: var(--yt-forest) !important;
  font: 700 1.12rem/1 'Lora', serif;
  letter-spacing: .1em;
  text-decoration: none !important;
}
.yt-nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--yt-line);
  border-radius: 50%;
  background: var(--yt-paper);
  color: var(--yt-forest);
  font-size: 1.2rem;
  cursor: pointer;
}
.yt-nav-links { display: flex; align-items: center; gap: 5px; }
.yt-nav-links a {
  padding: 10px 12px;
  border-radius: 999px;
  color: #53615b !important;
  font-size: .78rem;
  font-weight: 700;
  text-decoration: none !important;
  white-space: nowrap;
}
.yt-nav-links a:hover,
.yt-nav-links a[aria-current='page'] { background: var(--yt-green-soft); color: var(--yt-forest) !important; }
.yt-nav-links .yt-member-link { border: 1px solid rgba(45, 106, 79, .28); color: var(--yt-green) !important; }
.yt-nav-links .yt-member-link:hover,
.yt-nav-links .yt-member-link[aria-current='page'] { border-color: var(--yt-green); background: var(--yt-green-soft); color: var(--yt-forest) !important; }
.yt-nav-links .yt-contact-link { background: var(--yt-forest); color: white !important; padding-inline: 17px; }
.yt-nav-links .yt-contact-link:hover { background: var(--yt-green); color: white !important; }

.yt-group-return {
  width: min(1160px, calc(100% - 36px));
  min-height: 48px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--yt-space-2);
  border-bottom: 1px solid var(--yt-line);
  color: var(--yt-muted);
  font-size: .76rem;
}
.yt-group-return a { color: var(--yt-green) !important; font-weight: 800; text-decoration: none !important; }
.yt-group-return a:hover { text-decoration: underline !important; text-underline-offset: 3px; }
.yt-group-label { text-align: right; }

body.yt-unified .yt-primary-action {
  min-height: 46px !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: var(--yt-space-1) !important;
  padding: 12px 20px !important;
  border: 1px solid var(--yt-forest) !important;
  border-radius: 999px !important;
  background: var(--yt-forest) !important;
  color: #fff !important;
  box-shadow: none !important;
  font: 800 .86rem/1.2 'Open Sans', sans-serif !important;
  text-decoration: none !important;
  transition: background .18s ease, transform .18s ease !important;
}
body.yt-unified .yt-primary-action:hover { background: var(--yt-green) !important; color: #fff !important; transform: translateY(-1px); }
body.yt-unified .yt-primary-action:disabled { opacity: .58; cursor: wait; transform: none; }

body.yt-unified .yt-content-card {
  border: 1px solid var(--yt-line) !important;
  border-radius: var(--yt-radius) !important;
  box-shadow: 0 12px 32px rgba(23, 63, 53, .08) !important;
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease !important;
}
body.yt-unified .yt-content-card:hover {
  border-color: rgba(45, 106, 79, .38) !important;
  box-shadow: var(--yt-shadow) !important;
  transform: translateY(-3px);
}

.yt-contact-strip {
  width: min(1080px, calc(100% - 36px));
  margin: 72px auto 0;
  padding: clamp(28px, 5vw, 52px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 34px;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 4px;
  background: var(--yt-forest);
  color: white;
}
.yt-contact-strip h2 { margin: 0 0 10px; color: white; font: 700 clamp(1.65rem, 4vw, 2.55rem)/1.15 'Lora', serif; }
.yt-contact-strip p { max-width: 700px; margin: 0; color: rgba(255, 255, 255, .76); line-height: 1.7; }
.yt-next-step-label { display: block; margin-bottom: 10px; color: #f1cf96; font-size: .7rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.yt-zalo-button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 19px;
  border: 0;
  border-radius: 999px;
  background: var(--yt-rust);
  color: white !important;
  font: 800 .86rem/1 'Open Sans', sans-serif;
  text-decoration: none !important;
  cursor: pointer;
  white-space: nowrap;
}
.yt-zalo-button:hover { background: #bd7352; color: white !important; transform: translateY(-1px); }

.yt-site-footer { margin-top: 64px; border-top: 1px solid var(--yt-line); background: var(--yt-paper); }
.yt-footer-inner {
  width: min(1160px, calc(100% - 36px));
  min-height: 88px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: var(--yt-muted);
  font-size: .78rem;
}
.yt-footer-inner a { color: var(--yt-green) !important; font-weight: 700; text-decoration: none !important; }

.yt-zalo-float {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 9980;
  min-height: 48px;
  padding: 11px 17px;
  border: 0;
  border-radius: 999px;
  background: #0866ff;
  color: white;
  box-shadow: 0 14px 34px rgba(8, 102, 255, .3);
  font: 800 .8rem/1 'Open Sans', sans-serif;
  cursor: pointer;
}
.yt-zalo-modal[hidden] { display: none; }
.yt-zalo-modal { position: fixed; inset: 0; z-index: 10000; display: grid; place-items: center; padding: 20px; }
.yt-zalo-backdrop { position: absolute; inset: 0; border: 0; background: rgba(12, 28, 22, .72); cursor: pointer; }
.yt-zalo-dialog {
  position: relative;
  width: min(430px, 100%);
  max-height: calc(100vh - 40px);
  overflow: auto;
  padding: 30px;
  border-radius: 4px;
  background: var(--yt-paper);
  box-shadow: 0 30px 90px rgba(0, 0, 0, .3);
  text-align: center;
}
.yt-zalo-dialog h2 { margin: 0 34px 8px; color: var(--yt-forest); font: 700 1.8rem/1.2 'Lora', serif; }
.yt-zalo-dialog p { margin: 0 0 20px; color: var(--yt-muted); font-size: .9rem; line-height: 1.65; }
.yt-zalo-dialog img { display: block; width: min(290px, 100%); height: auto; margin: 0 auto 18px; object-fit: contain; }
.yt-zalo-direct { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 10px 16px; border: 1px solid var(--yt-forest); border-radius: 999px; color: var(--yt-forest); font-size: .78rem; font-weight: 800; text-decoration: none; }
.yt-zalo-direct:hover { background: var(--yt-forest); color: white; }
.yt-zalo-direct:focus-visible { outline: 3px solid #d39b54; outline-offset: 3px; }
.yt-zalo-close { position: absolute; top: 12px; right: 12px; width: 40px; height: 40px; border: 0; border-radius: 50%; background: var(--yt-cream); color: var(--yt-forest); font-size: 1.3rem; cursor: pointer; }
.yt-zalo-note { display: block; margin-top: 12px; color: var(--yt-muted); font-size: .72rem; }

:where(a, button, input, select, textarea, summary):focus-visible { outline: 3px solid #e5b55c !important; outline-offset: 3px !important; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; } }

@media (max-width: 860px) {
  .yt-nav { min-height: 64px; }
  .yt-nav-toggle { display: grid; place-items: center; }
  .yt-nav-links {
    position: absolute;
    top: 64px;
    right: 0;
    left: 0;
    display: none;
    padding: 12px 18px 20px;
    border-bottom: 1px solid var(--yt-line);
    background: var(--yt-paper);
    box-shadow: var(--yt-shadow);
  }
  .yt-site-header[data-open='true'] .yt-nav-links { display: grid; }
  .yt-nav-links a { min-height: 44px; display: flex; align-items: center; border-radius: 3px; padding-inline: 14px; }
  .yt-contact-strip { grid-template-columns: 1fr; gap: 22px; margin-top: 52px; }
  .yt-contact-strip .yt-zalo-button { justify-self: start; }
  .yt-footer-inner { padding: 25px 0; flex-direction: column; align-items: flex-start; }
}
@media (max-width: 480px) {
  .yt-nav, .yt-footer-inner { width: min(100% - 24px, 1160px); }
  .yt-group-return { width: min(100% - 24px, 1160px); min-height: 44px; }
  .yt-group-label { display: none; }
  .yt-contact-strip { width: min(100% - 24px, 1080px); }
  .yt-zalo-dialog { padding: 26px 18px 22px; }
}