/* Office Lounge — brand tokens (Brand Guidelines 2026, v1.0) */
:root {
  --teal: #3A7C7F;        /* Xanh ngọc trầm — primary, ~60% */
  --champagne: #E3CB97;   /* Vàng sâm panh — logo & accents on teal */
  --cream: #F2EDE4;       /* Kem — paper */
  --ink: #153D3B;         /* Xanh mòng két đậm — text & logo on cream */
  --on-teal: #FAF8F4;     /* Cream, lifted slightly for small text contrast on teal */
  --ink-2: #4A5E5C;       /* Secondary text on cream */
  --label: #7D5F2B;       /* Section labels on cream */
  --sand: #E7DFD2;
  --card: #F7F4EE;
  --line: #C9BFAE;
  --line-soft: #D8CFC0;
  --teal-line: #5F9497;
  --radius: 6px;
  --display: "Marcellus", Georgia, serif;           /* logo & uppercase English only */
  --serif: "Cormorant Garamond", Georgia, serif;    /* headings & quotes */
  --sans: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font: 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }

.wrap { width: min(1180px, 100% - 48px); margin-inline: auto; }

h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.1; margin: 0 0 .45em; }
h1 { font-size: clamp(2.4rem, 5.5vw, 3.5rem); line-height: 1.08; }
h2 { font-size: clamp(2rem, 4vw, 2.9rem); max-width: 24ch; }
h3 { font-size: 1.5rem; }
h2.italic { font-style: italic; font-weight: 500; }
p { margin: 0 0 1em; }

.caps, .caps-label, .pillars, .wordmark {
  font-family: var(--display); font-weight: 400; letter-spacing: .3em; text-transform: uppercase;
}
.caps { font-size: 1.25rem; margin-bottom: .35em; }
.caps-label { font-size: .95rem; color: var(--champagne); margin-bottom: 1rem; }

.eyebrow {
  font-size: .75rem; letter-spacing: .2em; text-transform: uppercase;
  font-weight: 600; color: var(--label); margin-bottom: 1rem;
}
.lede { color: var(--ink-2); max-width: 62ch; }

/* Buttons */
.btn {
  display: inline-block; border: 0; cursor: pointer; text-decoration: none;
  padding: .95rem 1.6rem; border-radius: 4px; font: 600 .95rem var(--sans);
  transition: transform .15s ease, filter .15s ease;
}
.btn:hover { transform: translateY(-1px); filter: brightness(1.05); }
.btn-gold { background: var(--champagne); color: var(--ink); }
.btn-teal { background: var(--teal); color: #fff; }
.btn-outline { box-shadow: inset 0 0 0 1px var(--champagne); color: var(--on-teal); }
.btn-small { padding: .65rem 1.2rem; font-size: .875rem; }
.btn:disabled { opacity: .6; cursor: wait; }

/* Teal sections */
.teal { background: var(--teal); color: var(--on-teal); }
.teal .eyebrow, .teal .lede, .teal p { color: var(--on-teal); }
.teal h1, .teal h2 { color: var(--on-teal); }
.sand { background: var(--sand); }

/* Nav */
.nav { position: sticky; top: 0; z-index: 10; background: var(--teal); border-bottom: 1px solid var(--teal-line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; min-height: 76px; gap: 1rem; }
.logo { display: inline-flex; align-items: center; gap: 14px; text-decoration: none; color: var(--champagne); }
.logo-mark { stroke-width: 16; flex: none; }
.wordmark { font-size: 1.05rem; }
.nav-links { display: flex; gap: 1.75rem; }
.nav-links a { text-decoration: none; font-size: .95rem; color: var(--on-teal); }
.nav-links a:hover { color: var(--champagne); }
.nav-actions { display: flex; align-items: center; gap: .6rem; }
.lang {
  background: none; border: 1px solid #A9C7C8; border-radius: 999px; color: var(--on-teal);
  padding: .4rem .75rem; font: 600 .8rem var(--sans); cursor: pointer; min-height: 36px;
}

/* Hero */
.hero { padding: clamp(4rem, 9vw, 6rem) 0 4.5rem; }
.hero-inner { display: grid; grid-template-columns: 1.2fr 1fr; gap: 3.5rem; align-items: center; }
.quote { font: italic 500 clamp(1.4rem, 2.6vw, 1.75rem)/1.3 var(--serif); color: var(--champagne) !important; margin-bottom: 2rem; }
.cta-row { display: flex; flex-wrap: wrap; gap: .75rem; }
.hero-mark { display: flex; justify-content: center; color: var(--champagne); }
.hero-mark svg { width: min(300px, 70vw); height: auto; stroke-width: 9; }
.hero-foot {
  margin-top: 4rem; padding-top: 1.5rem; border-top: 1px solid var(--teal-line);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem;
}
.hero-foot p { margin: 0; font-size: .9rem; }
.hero-foot .pillars { color: var(--champagne) !important; font-size: .95rem; }

/* Sections */
.section { padding: clamp(4.5rem, 9vw, 7rem) 0; }
.section-tight-top { padding-top: 0; }

.grid { display: grid; gap: 1.25rem; margin-top: 2.75rem; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.pillars-grid { margin-top: 3.5rem; }
.pillars-grid > div { border-top: 1px solid var(--line); padding-top: 1.25rem; }
.pillars-grid p { color: var(--ink-2); margin: 0; }

.card { padding: 1.6rem; border: 1px solid var(--line-soft); border-radius: var(--radius); background: var(--card); }
.card p { color: var(--ink-2); font-size: .95rem; margin: 0; }
.num { display: block; margin-bottom: .75rem; font-size: .8rem; font-weight: 600; color: var(--label); }

/* Floor plan */
.plan {
  margin-top: 2.5rem; display: grid; gap: 6px; padding: 6px; border-radius: var(--radius);
  background: var(--ink); height: clamp(240px, 28vw, 312px);
  grid-template-columns: 1.1fr 2fr 1.2fr; grid-template-rows: 1fr 1fr;
  grid-template-areas: "r1 r2 r3" "r4 r2 r3";
}
.room { border-radius: 3px; padding: 1.1rem; display: flex; flex-direction: column; justify-content: space-between; }
.room span { font-size: .75rem; font-weight: 600; }
.room b { font: 600 1.4rem var(--serif); }
.r1 { grid-area: r1; background: var(--cream); }
.r2 { grid-area: r2; background: var(--teal); color: var(--on-teal); }
.r3 { grid-area: r3; background: var(--champagne); }
.r4 { grid-area: r4; background: var(--sand); }

/* Packages */
.pkg { padding: 1.9rem 1.6rem; border-radius: var(--radius); background: var(--cream); color: var(--ink); display: flex; flex-direction: column; }
.teal .pkg p { color: var(--ink-2); font-size: .95rem; }
.teal .pkg .pkg-sub { font: 600 1.4rem/1.2 var(--serif); color: var(--ink); margin-bottom: .75rem; }
.teal .pkg .pkg-meta { margin: auto 0 0; padding-top: 1rem; border-top: 1px solid var(--line-soft); font-size: .875rem; font-weight: 600; color: var(--label); }
.pkg-feature { background: var(--champagne); }
.teal .pkg-feature p, .teal .pkg-feature .pkg-meta { color: var(--ink); }
.teal .pkg-feature .pkg-meta { border-color: #C2A86F; }

.included { margin-top: 2.75rem; padding: 2rem; border: 1px solid var(--champagne); border-radius: var(--radius); }
.included h3 { color: var(--on-teal); font-size: 1.65rem; }
.included ul { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: .6rem 1.5rem; }
.included li::before { content: "—"; color: var(--champagne); margin-right: .6rem; }

/* Split layouts */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 6vw, 4rem); align-items: start; }

.menu-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.menu-list li { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .25rem 1rem; padding: 1.1rem 0; border-bottom: 1px solid var(--line); }
.menu-list b { font: 600 1.4rem var(--serif); }
.menu-list span { color: var(--ink-2); font-size: .95rem; }

/* Tables */
.table-card { padding: 2rem; border: 1px solid var(--champagne); border-radius: var(--radius); }
.table-card h3 { color: var(--champagne); font-size: 1.75rem; line-height: 1.2; }
.table-card p:last-child { margin: 0; }
.note { margin: 2rem 0 0; font-size: .95rem; }

/* Steps */
.steps { list-style: none; padding: 0; margin: 2.75rem 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.75rem; }
.steps li { border-top: 1px solid var(--ink); padding-top: 1.25rem; }
.steps span { font-family: var(--display); letter-spacing: .3em; color: var(--label); }
.steps h3 { margin-top: .4rem; }
.steps p { color: var(--ink-2); font-size: .95rem; margin: 0; }

/* Contact & form */
.contact { list-style: none; padding: 0; margin: 2rem 0 0; }
.contact li { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .25rem 1rem; padding: .9rem 0; border-bottom: 1px solid var(--line); }
.contact span { color: var(--ink-2); font-size: .95rem; }
.contact a, .contact b { font-weight: 600; text-decoration: none; }

.form { background: var(--card); border: 1px solid var(--line-soft); padding: 2rem; border-radius: var(--radius); display: grid; gap: 1rem; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form label { display: grid; gap: .35rem; font-size: .875rem; font-weight: 500; color: var(--ink-2); }
.form input, .form select, .form textarea {
  font: inherit; font-size: 1rem; color: var(--ink); width: 100%;
  padding: .7rem .8rem; border: 1px solid var(--line); border-radius: 4px; background: #fff;
}
.form input:focus, .form select:focus, .form textarea:focus { outline: 2px solid var(--teal); outline-offset: 1px; border-color: transparent; }
.form .invalid { border-color: #A3352B; }
.form-status { margin: 0; font-size: .9rem; min-height: 1.4em; color: var(--ink); }
.form-status.error { color: #A3352B; }

/* Footer */
.footer { background: var(--ink); color: var(--cream); padding: 3.5rem 0; }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1.5rem; }
.footer p { margin: 0; font-size: .875rem; }
.footer .pillars { color: var(--champagne); font-size: .8rem; }

/* Responsive */
@media (max-width: 1000px) {
  .grid-4, .steps { grid-template-columns: repeat(2, 1fr); }
  .nav-links { display: none; }
}
@media (max-width: 760px) {
  .hero-inner, .split, .grid-2, .grid-3, .row { grid-template-columns: 1fr; }
  .hero-mark { order: -1; justify-content: flex-start; }
  .hero-mark svg { width: 120px; }
  .plan { grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr 1fr; grid-template-areas: "r2 r2" "r1 r3" "r4 r3"; height: 340px; }
}
@media (max-width: 520px) {
  .wrap { width: calc(100% - 32px); }
  .grid-4, .steps { grid-template-columns: 1fr; }
  .wordmark { font-size: .85rem; letter-spacing: .22em; }
  .nav-actions .btn-small { display: none; }
  .form { padding: 1.4rem; }
}