/* ============================================================
   VTM9 — SHARED SITE STYLES
   ============================================================ */
:root{
  --bg:#F9F5EF; --paper:#F2EBE0; --paper2:#EAE0D2;
  --ink:#1A1210; --ink2:#2E2320; --muted:#8A7A70; --line:#D8CCBE;
  --dark:#1A1210; --dark2:#2E2320;
  /* 2027 edition tone — golden sunset over the rice fields ("A Shared Horizon") */
  --accent:#A56F18; --accent-soft:#E8C88A; --gold:#C2922A;
  --serif:'Playfair Display', Georgia, serif;  /* Playfair có subset 'vietnamese' (đủ dấu); DM Serif Display thiếu dấu VN */
  --sans:'Manrope', system-ui, -apple-system, sans-serif;
  --mono:ui-monospace, 'SF Mono', Menlo, monospace;
  --ease:cubic-bezier(0.16,1,0.3,1);
  --noise:url("data:image/svg+xml,%3Csvg viewBox='0 0 220 220' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
*{margin:0;padding:0;box-sizing:border-box;border-radius:0 !important}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--sans);background:var(--bg);color:var(--ink);
  font-size:1.05rem;line-height:1.9;font-weight:400;overflow-x:hidden;
  -webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
::selection{background:var(--accent);color:var(--bg)}

/* ---------------- TYPE ---------------- */
.eyebrow{font-family:var(--sans);font-weight:600;font-size:.68rem;
  letter-spacing:.26em;text-transform:uppercase;color:var(--accent)}
.eyebrow.muted{color:var(--muted)}
.eyebrow.light{color:var(--accent-soft)}
.h2{font-family:var(--serif);font-weight:400;line-height:1.02;
  font-size:clamp(2.6rem,4.6vw,5rem);letter-spacing:-.005em}
.sub-i{font-family:var(--serif);font-style:italic;font-weight:400;
  font-size:clamp(1.3rem,1.9vw,1.9rem);line-height:1.35;color:var(--ink2)}
.body{font-size:1.05rem;line-height:1.9;color:var(--ink2)}
.body.muted{color:var(--muted)}
.lede{font-size:1.18rem;line-height:1.85}
.caption{font-family:var(--sans);font-weight:600;font-size:.66rem;
  letter-spacing:.22em;text-transform:uppercase;color:var(--muted)}

/* ---------------- LAYOUT ---------------- */
.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 48px}
.wrap-wide{width:100%;max-width:1560px;margin:0 auto;padding:0 48px}
section{position:relative}
.pad{padding-top:clamp(96px,11vw,160px);padding-bottom:clamp(96px,11vw,160px)}
.pad-sm{padding-top:clamp(72px,8vw,120px);padding-bottom:clamp(72px,8vw,120px)}

/* ---------------- BUTTONS ---------------- */
.btn{display:inline-flex;align-items:center;gap:.7em;font-family:var(--sans);
  font-weight:600;font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;
  padding:1.1em 1.8em;cursor:pointer;border:1px solid transparent;line-height:1;
  white-space:nowrap;transition:background .45s var(--ease),color .45s var(--ease),
    border-color .45s var(--ease)}
.btn .ar{transition:transform .5s var(--ease)}
.btn:hover .ar{transform:translateX(5px)}
.btn-primary{background:var(--accent);color:var(--bg)}
.btn-primary:hover{background:var(--ink);color:var(--bg)}
.btn-outline-light{border-color:rgba(255,255,255,.45);color:#fff}
.btn-outline-light:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-outline-dark{border-color:var(--ink);color:var(--ink)}
.btn-outline-dark:hover{background:var(--ink);color:var(--bg)}
.tlink{display:inline-flex;align-items:center;gap:.6em;font-weight:600;
  font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);
  border-bottom:1px solid currentColor;padding-bottom:.35em}
.tlink .ar{transition:transform .5s var(--ease)}
.tlink:hover .ar{transform:translateX(5px)}
.tlink.light{color:#fff}

/* ---------------- CINEMATIC PLACEHOLDERS ---------------- */
.ph{position:relative;overflow:hidden;background:#1A0E08;isolation:isolate}
.ph::after{content:'';position:absolute;inset:0;background:var(--noise);
  opacity:.05;mix-blend-mode:overlay;pointer-events:none;z-index:2}
.ph-cap{position:absolute;left:18px;bottom:14px;z-index:3;font-family:var(--mono);
  font-size:.62rem;letter-spacing:.02em;color:rgba(255,255,255,.4);
  max-width:72%;line-height:1.5}
.ph-sunset{background:linear-gradient(160deg,#3D1A0A,#5C2810 30%,#1A0E08 70%,#0D0806)}
.ph-ballroom{background:linear-gradient(180deg,#0A0A0F,#1A1218 40%,#0F0C10)}
.ph-lantern{background:linear-gradient(135deg,#1A1005,#2E1F08 40%,#0F0C05)}
.ph-pool{background:linear-gradient(180deg,#0A1520,#152030 50%,#0A0F18)}
.ph-abrazo{background:radial-gradient(ellipse at 40% 60%,#2E1410,#1A0C08 50%,#080504)}
.ph-portrait{background:radial-gradient(ellipse at 50% 32%,#3A2418,#1E1410 55%,#0C0806)}
/* 2027 golden sunset — bright amber sky fading to dark olive field (for hero/banners) */
.ph-fields{background:radial-gradient(ellipse at 50% 40%,#F2C063,#DC9A3E 20%,#A0702C 44%,#4D4825 70%,#1E1F10)}
.ph-bloom::before{content:'';position:absolute;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(circle at 68% 26%,rgba(184,134,11,.2),transparent 46%)}

/* ---------------- REVEAL ---------------- */
.rv{opacity:0;transform:translateY(32px);
  transition:opacity 1.05s var(--ease),transform 1.05s var(--ease)}
.rv.visible{opacity:1;transform:translateY(0)}
.rv-delay-1{transition-delay:.12s}.rv-delay-2{transition-delay:.24s}
.rv-delay-3{transition-delay:.36s}.rv-delay-4{transition-delay:.48s}
@media (prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}
}

/* ---------------- NAV ---------------- */
.nav{position:fixed;top:0;left:0;width:100%;z-index:100;display:flex;
  align-items:center;justify-content:space-between;padding:20px 48px;
  border-bottom:1px solid transparent;
  transition:background .5s var(--ease),padding .5s var(--ease),border-color .5s var(--ease)}
.nav.scrolled{background:rgba(249,245,239,.94);backdrop-filter:blur(14px);
  padding:13px 48px;border-bottom:1px solid var(--line)}
.logo{display:flex;flex-direction:column;align-items:flex-start;line-height:1.04;letter-spacing:.32em;
  font-size:.6rem;font-weight:400;color:rgba(255,255,255,.82);
  transition:color .5s var(--ease)}
.logo b{font-weight:800;letter-spacing:.14em;color:#fff;font-size:.86rem;
  transition:color .5s var(--ease)}
.nav.scrolled .logo{color:var(--muted)}
.nav.scrolled .logo b{color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a.nl{position:relative;font-weight:600;font-size:.7rem;letter-spacing:.16em;
  text-transform:uppercase;color:rgba(255,255,255,.82);transition:color .4s var(--ease)}
.nav.scrolled .nav-links a.nl{color:var(--ink2)}
/* active/hover thắng cả ở trạng thái scrolled (đặc hiệu cao hơn .nav.scrolled .nl) */
.nav-links a.nl:hover,.nav-links a.nl.active,
.nav.scrolled .nav-links a.nl:hover,.nav.scrolled .nav-links a.nl.active{color:var(--accent)}
/* gạch chân chỉ trang đang chọn — hiện ở cả nền tối lẫn sáng (accent vàng) */
.nav-links a.nl.active::after{content:'';position:absolute;left:0;right:0;bottom:-7px;height:2px;background:var(--accent)}
.nav .btn{padding:.9em 1.4em;font-size:.68rem}
.nav:not(.scrolled) .btn-nav{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.nav:not(.scrolled) .btn-nav:hover{background:#fff;color:var(--ink)}
.nav.scrolled .btn-nav{background:var(--accent);color:var(--bg);border-color:var(--accent)}
.nav.scrolled .btn-nav:hover{background:var(--ink);border-color:var(--ink)}
.burger{display:none;flex-direction:column;gap:6px;cursor:pointer;width:34px;
  height:34px;justify-content:center;align-items:flex-end}
.burger span{display:block;height:1.5px;background:#fff;transition:.4s var(--ease)}
.nav.scrolled .burger span{background:var(--ink)}
.burger span:nth-child(1){width:28px}.burger span:nth-child(2){width:20px}
.burger span:nth-child(3){width:28px}

.drawer{position:fixed;top:0;left:0;width:100%;z-index:99;background:var(--dark);
  transform:translateY(-100%);transition:transform .6s var(--ease);
  display:flex;flex-direction:column;padding:104px 28px 40px;gap:2px}
.drawer.open{transform:translateY(0)}
.drawer a.dl{font-family:var(--serif);font-size:1.9rem;color:#fff;padding:13px 0;
  border-bottom:1px solid rgba(255,255,255,.1)}
.drawer .btn{margin-top:26px;justify-content:center}
.drawer-close{position:absolute;top:28px;right:28px;color:#fff;font-size:2rem;
  cursor:pointer;font-weight:300;line-height:1}

/* ---------------- PAGE HERO (interior pages) ---------------- */
/* min-height (KHÔNG fixed height) để hero giãn theo nội dung; padding-top chừa chỗ
   cho nav cố định → header không bao giờ tràn lên / đụng top nav dù màn hình thấp */
.page-hero{min-height:60vh;position:relative;overflow:hidden;
  display:flex;align-items:flex-end;padding-top:120px}
.page-hero .ph{position:absolute;inset:0}
.page-hero .veil{position:absolute;inset:0;z-index:3;
  background:linear-gradient(to top,rgba(10,6,4,.9),rgba(10,6,4,.25) 60%,rgba(10,6,4,.4))}
.page-hero .grain{position:absolute;inset:0;z-index:4;background:var(--noise);
  opacity:.06;mix-blend-mode:overlay;pointer-events:none}
.page-hero .ph-inner{position:relative;z-index:5;width:100%;max-width:1280px;
  margin:0 auto;padding:0 48px 7vh}
.page-hero .eyebrow{color:var(--accent-soft);margin-bottom:24px;display:flex;align-items:center;gap:14px}
.page-hero .eyebrow .ln{width:40px;height:1px;background:rgba(232,200,138,.55)}
.page-hero h1{font-family:var(--serif);color:#fff;line-height:.96;
  font-size:clamp(2.8rem,6vw,5.8rem);letter-spacing:-.01em;margin-bottom:.3em}
.page-hero .sub{font-family:var(--serif);font-style:italic;color:rgba(255,255,255,.88);
  font-size:clamp(1.2rem,2vw,1.8rem);line-height:1.35;max-width:24ch}

/* ---------------- SECTION HEADERS ---------------- */
.sec-head{margin-bottom:clamp(48px,6vw,84px)}
.sec-head .h2{margin-top:18px}
.sec-head .lead{margin-top:22px;max-width:46ch}

/* ---------------- FINAL CTA ---------------- */
.final{background:var(--accent);color:#fff;text-align:center;overflow:hidden;position:relative}
.final .fgrain{position:absolute;inset:0;background:var(--noise);opacity:.06;
  mix-blend-mode:overlay;pointer-events:none}
.final-inner{position:relative;z-index:2;max-width:1000px;margin:0 auto;padding:0 48px}
.final .eyebrow{color:rgba(255,255,255,.7);margin-bottom:30px}
.final h2{font-family:var(--serif);font-size:clamp(2.8rem,7vw,7rem);line-height:.96;margin-bottom:26px}
.final h2 em{display:block;font-style:italic}
.final .sub{font-family:var(--serif);font-style:italic;
  font-size:clamp(1.15rem,1.9vw,1.7rem);color:rgba(255,255,255,.86);margin-bottom:44px}
.final .btn-outline-light{border-color:rgba(255,255,255,.6)}

/* ---------------- FOOTER ---------------- */
.footer{background:var(--dark);color:rgba(255,255,255,.6);
  padding:clamp(64px,8vw,100px) 0 46px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:48px;margin-bottom:64px}
.footer .logo{position:static;color:rgba(255,255,255,.55);margin-bottom:22px;
  font-size:.66rem;letter-spacing:.32em}
.footer .logo b{color:#fff;font-size:.96rem}
.footer .f-tag{font-family:var(--serif);font-style:italic;font-size:1.25rem;
  color:rgba(255,255,255,.82);line-height:1.4;max-width:24ch}
.footer h5{font-weight:700;font-size:.62rem;letter-spacing:.22em;text-transform:uppercase;
  color:rgba(255,255,255,.42);margin-bottom:20px}
.footer ul{list-style:none;display:flex;flex-direction:column;gap:12px}
.footer ul a{font-size:.94rem;color:rgba(255,255,255,.72);transition:color .35s}
.footer ul a:hover{color:var(--accent)}
.footer .contact-line{font-size:.9rem;line-height:1.7;color:rgba(255,255,255,.72)}
.footer .contact-line b{color:#fff;font-weight:600}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:28px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;
  font-size:.72rem;letter-spacing:.04em;color:rgba(255,255,255,.42)}

/* ============================================================
   RESPONSIVE — 1024
   ============================================================ */
@media (max-width:1024px){
  .wrap,.wrap-wide{padding:0 32px}
  .nav{padding:16px 32px}.nav.scrolled{padding:11px 32px}
  .page-hero .ph-inner{padding:0 32px 7vh}
}
/* ============================================================
   RESPONSIVE — 768 (mobile)
   ============================================================ */
@media (max-width:768px){
  body{font-size:16px;line-height:1.85}
  .wrap,.wrap-wide{padding:0 20px}
  .pad{padding-top:80px;padding-bottom:80px}
  .pad-sm{padding-top:64px;padding-bottom:64px}
  .nav{padding:14px 20px}.nav.scrolled{padding:11px 20px}
  .nav-links{display:none}.burger{display:flex}
  .page-hero{height:56vh;min-height:360px}
  .page-hero .ph-inner{padding:0 20px 9vh}
  .page-hero h1{font-size:clamp(2.3rem,9vw,3.2rem)}
  .page-hero .sub{font-size:1.15rem}
  .sec-head .lead{max-width:none}
  .footer-grid{grid-template-columns:1fr;gap:38px}
  .footer-bottom{flex-direction:column}
  .final-inner{padding:0 20px}
}