/* ============================================================
   NGƯỜI VIỆT MUÔN NƠI — BRAND v2.0 Voice & Place
   Subdomain: nguoiviet.muonnoi.org
   Inherits from: docs/MUONNOI_V2_VOICE_AND_PLACE.md
   Tagline: Đi xa để quay trở về
   ============================================================ */

:root{
  color-scheme:dark light;
  --bg:#0a0f14;
  --bg-soft:#0d131a;
  --panel:rgba(255,255,255,.045);
  --panel-2:rgba(255,255,255,.065);
  --panel-3:rgba(255,255,255,.085);
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --text:#eef4fb;
  --text-2:rgba(238,244,251,.84);
  --muted:rgba(238,244,251,.64);
  --muted-2:rgba(238,244,251,.46);

  --brand:#3B7EFF;
  --brand-soft:rgba(59,126,255,.14);
  --brand-line:rgba(59,126,255,.28);
  --brand-whisper:#7FE0E5;
  --brand-gold:#D4AF37;
  --brand-vn:#C8102E;

  --shadow-sm:0 8px 24px rgba(0,0,0,.18);
  --shadow-md:0 14px 34px rgba(0,0,0,.22);

  --r-sm:14px;
  --r-md:18px;
  --r-lg:24px;
  --r-xl:30px;

  --shell:1240px;
  --topbar-h:78px;
  --safe-t:env(safe-area-inset-top,0px);
  --safe-b:env(safe-area-inset-bottom,0px);
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    scroll-behavior:auto !important;
    transition-duration:.01ms !important;
  }
}

html[data-theme="light"]{
  --bg:#f4f7fb;
  --bg-soft:#edf2f7;
  --panel:rgba(10,15,20,.035);
  --panel-2:rgba(10,15,20,.055);
  --panel-3:rgba(10,15,20,.08);
  --line:rgba(10,15,20,.09);
  --line-strong:rgba(10,15,20,.16);
  --text:#101820;
  --text-2:rgba(16,24,32,.84);
  --muted:rgba(16,24,32,.62);
  --muted-2:rgba(16,24,32,.45);
  --brand-whisper:#0E9EA6;
  --brand-gold:#B8910C;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}

body{
  background:var(--bg);
  color:var(--text);
  font-family:"Be Vietnam Pro","Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,system-ui,sans-serif;
  font-feature-settings:"ss01","cv11";
  line-height:1.6;
  min-height:100vh;
  overflow-x:hidden;
  text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
}

/* Background — Voice & Place mirror layers */
.mn-bg{
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(1200px 600px at 20% -10%, rgba(59,126,255,.18) 0%, transparent 70%),
    radial-gradient(900px 500px at 95% 10%, rgba(127,224,229,.10) 0%, transparent 65%),
    radial-gradient(700px 400px at 50% 110%, rgba(212,175,55,.08) 0%, transparent 70%),
    var(--bg);
}
.mn-bg__grid{
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:48px 48px;
  mask:radial-gradient(ellipse at 50% 30%, #000 30%, transparent 75%);
}

html[data-theme="light"] .mn-bg{
  background:
    radial-gradient(1200px 600px at 20% -10%, rgba(59,126,255,.10) 0%, transparent 70%),
    radial-gradient(900px 500px at 95% 10%, rgba(14,158,166,.08) 0%, transparent 65%),
    radial-gradient(700px 400px at 50% 110%, rgba(184,145,12,.06) 0%, transparent 70%),
    var(--bg);
}
html[data-theme="light"] .mn-bg__grid{
  background-image:
    linear-gradient(rgba(10,15,20,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10,15,20,.04) 1px, transparent 1px);
}

/* Skip link */
.mn-srOnlyFocus{
  position:absolute;
  left:-9999px;
  top:0;
}
.mn-srOnlyFocus:focus{
  left:16px;
  top:calc(16px + var(--safe-t));
  padding:10px 16px;
  background:var(--brand);
  color:#fff;
  border-radius:8px;
  z-index:1000;
}

/* Layout */
.mn-shell{
  max-width:var(--shell);
  margin:0 auto;
  padding:0 24px;
}

/* TOP BAR */
.mn-top{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(10,15,20,.65);
  backdrop-filter:blur(20px) saturate(160%);
  -webkit-backdrop-filter:blur(20px) saturate(160%);
  border-bottom:1px solid var(--line);
  padding-top:var(--safe-t);
}
html[data-theme="light"] .mn-top{
  background:rgba(244,247,251,.78);
}

.mn-top__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  height:var(--topbar-h);
}

.mn-brand{
  display:flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  color:var(--text);
}
.mn-brand__mark{
  width:38px;
  height:38px;
  border-radius:50%;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-whisper) 100%);
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:900;
  font-size:14px;
  color:#fff;
  letter-spacing:.5px;
  box-shadow:var(--shadow-sm);
}
.mn-brand__stack{display:flex;flex-direction:column;line-height:1.15}
.mn-brand__name{font-weight:900;font-size:15px;letter-spacing:.2px}
.mn-brand__sub{font-size:11px;color:var(--muted);font-weight:500}

.mn-nav{
  display:flex;
  align-items:center;
  gap:4px;
}
.mn-nav a{
  padding:8px 14px;
  border-radius:99px;
  text-decoration:none;
  color:var(--text-2);
  font-size:14px;
  font-weight:600;
  transition:all .2s;
}
.mn-nav a:hover{
  background:var(--panel);
  color:var(--text);
}
.mn-nav a.is-active{
  background:var(--brand-soft);
  color:var(--brand);
}

.mn-top__actions{
  display:flex;
  align-items:center;
  gap:8px;
}

.mn-iconBtn,.mn-langBtn,.mn-themeBtn{
  background:var(--panel);
  border:1px solid var(--line);
  color:var(--text-2);
  padding:8px 12px;
  border-radius:99px;
  font-size:13px;
  cursor:pointer;
  font-weight:600;
  transition:all .2s;
}
.mn-iconBtn:hover,.mn-langBtn:hover,.mn-themeBtn:hover{
  background:var(--panel-2);
  color:var(--text);
}

/* Buttons */
.mn-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 22px;
  border-radius:99px;
  text-decoration:none;
  font-weight:700;
  font-size:15px;
  border:1px solid var(--line);
  background:var(--panel);
  color:var(--text);
  transition:all .2s;
  cursor:pointer;
}
.mn-btn:hover{background:var(--panel-2);transform:translateY(-1px)}
.mn-btn--primary{
  background:linear-gradient(135deg,var(--brand) 0%,#5a93ff 100%);
  border-color:transparent;
  color:#fff;
  box-shadow:0 4px 16px rgba(59,126,255,.32);
}
.mn-btn--primary:hover{box-shadow:0 8px 24px rgba(59,126,255,.40)}
.mn-btn--ghost{background:transparent}
.mn-btn--whisper{
  background:linear-gradient(135deg,var(--brand-whisper) 0%,#a3eef0 100%);
  border-color:transparent;
  color:#0a3a3e;
}

/* Burger */
.mn-burger{
  display:none;
  flex-direction:column;
  gap:4px;
  width:40px;
  height:40px;
  align-items:center;
  justify-content:center;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:99px;
  cursor:pointer;
}
.mn-burger span{
  width:18px;
  height:2px;
  background:var(--text);
  border-radius:2px;
}

/* HERO */
.mn-page{padding:48px 0 80px}
.mn-hero{
  padding:64px 0 72px;
  text-align:center;
}
.mn-hero__eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:99px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12px;
  font-weight:700;
  letter-spacing:.6px;
  text-transform:uppercase;
  margin-bottom:18px;
}
.mn-hero h1{
  font-size:clamp(36px,6.5vw,76px);
  font-weight:900;
  line-height:1.05;
  letter-spacing:-.02em;
  margin:0 0 18px;
  background:linear-gradient(135deg,var(--text) 0%,var(--brand) 60%,var(--brand-whisper) 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.mn-hero__tagline{
  font-size:clamp(20px,3vw,28px);
  color:var(--text-2);
  font-weight:700;
  margin:0 0 14px;
  letter-spacing:.3px;
}
.mn-hero__sub{
  max-width:760px;
  margin:0 auto 32px;
  color:var(--muted);
  font-size:clamp(15px,1.5vw,17px);
  line-height:1.65;
}
.mn-hero__cta{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:center;
}

/* Sections */
.mn-section{padding:64px 0;border-top:1px solid var(--line)}
.mn-section__head{margin-bottom:36px;text-align:center}
.mn-section__eyebrow{
  display:inline-block;
  color:var(--brand-whisper);
  font-size:13px;
  font-weight:700;
  letter-spacing:1px;
  text-transform:uppercase;
  margin-bottom:10px;
}
.mn-section__title{
  font-size:clamp(28px,4vw,44px);
  font-weight:900;
  line-height:1.15;
  margin:0 0 12px;
  letter-spacing:-.01em;
}
.mn-section__lead{
  max-width:720px;
  margin:0 auto;
  color:var(--muted);
  font-size:17px;
  line-height:1.65;
}

/* Cards */
.mn-grid{display:grid;gap:18px}
.mn-grid--2{grid-template-columns:repeat(2,1fr)}
.mn-grid--3{grid-template-columns:repeat(3,1fr)}
.mn-grid--4{grid-template-columns:repeat(4,1fr)}

.mn-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:28px;
  text-decoration:none;
  color:inherit;
  display:flex;
  flex-direction:column;
  gap:12px;
  transition:all .25s;
}
.mn-card:hover{
  background:var(--panel-2);
  border-color:var(--brand-line);
  transform:translateY(-2px);
  box-shadow:var(--shadow-md);
}
.mn-card__num{
  font-size:13px;
  font-weight:800;
  color:var(--brand);
  letter-spacing:1px;
}
.mn-card__title{
  font-size:20px;
  font-weight:800;
  margin:0;
  line-height:1.25;
}
.mn-card__body{color:var(--muted);font-size:15px;line-height:1.6;margin:0}
.mn-card__more{
  margin-top:auto;
  color:var(--brand);
  font-weight:700;
  font-size:14px;
}

/* Journey flow */
.mn-flow{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  justify-content:center;
  align-items:stretch;
}
.mn-flow__step{
  flex:1 1 200px;
  min-width:200px;
  padding:20px 22px;
  background:var(--panel);
  border:1px solid var(--line);
  border-left:3px solid var(--brand);
  border-radius:var(--r-md);
  position:relative;
}
.mn-flow__step:nth-child(even){border-left-color:var(--brand-whisper)}
.mn-flow__step:nth-child(7n){border-left-color:var(--brand-gold)}
.mn-flow__num{
  font-size:11px;
  color:var(--muted);
  font-weight:800;
  letter-spacing:1px;
  text-transform:uppercase;
  margin-bottom:6px;
}
.mn-flow__title{font-weight:800;font-size:17px;margin:0 0 6px}
.mn-flow__desc{color:var(--muted-2);font-size:13px;line-height:1.5;margin:0}

/* Pull quote */
.mn-quote{
  padding:48px 32px;
  background:var(--panel);
  border:1px solid var(--brand-line);
  border-radius:var(--r-xl);
  text-align:center;
  background-image:linear-gradient(135deg,var(--brand-soft) 0%,transparent 100%);
}
.mn-quote__text{
  font-size:clamp(20px,2.4vw,26px);
  font-weight:700;
  line-height:1.4;
  color:var(--text);
  margin:0;
}
.mn-quote__small{
  margin-top:14px;
  color:var(--muted);
  font-size:14px;
}

/* List */
.mn-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}
.mn-list li{
  padding-left:28px;
  position:relative;
  color:var(--text-2);
  font-size:16px;
  line-height:1.55;
}
.mn-list li::before{
  content:"→";
  position:absolute;
  left:0;
  color:var(--brand);
  font-weight:800;
}

/* Footer */
.mn-foot{
  margin-top:64px;
  padding:48px 0 56px;
  border-top:1px solid var(--line);
}
.mn-foot__grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:32px;
  margin-bottom:32px;
}
.mn-foot__title{
  font-size:13px;
  font-weight:800;
  color:var(--muted);
  text-transform:uppercase;
  letter-spacing:1px;
  margin:0 0 12px;
}
.mn-foot ul{list-style:none;padding:0;margin:0}
.mn-foot ul li{margin-bottom:8px}
.mn-foot ul li a{color:var(--text-2);text-decoration:none;font-size:14px}
.mn-foot ul li a:hover{color:var(--brand)}
.mn-foot__bottom{
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  color:var(--muted);
  font-size:13px;
}
.mn-foot__brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}

/* CTA section */
.mn-cta{
  margin:48px auto;
  padding:48px 36px;
  background:linear-gradient(135deg,var(--brand-soft) 0%,rgba(127,224,229,.08) 100%);
  border:1px solid var(--brand-line);
  border-radius:var(--r-xl);
  text-align:center;
}
.mn-cta__title{
  font-size:clamp(24px,3.4vw,36px);
  font-weight:900;
  margin:0 0 14px;
  letter-spacing:-.01em;
}
.mn-cta__sub{
  max-width:640px;
  margin:0 auto 24px;
  color:var(--muted);
  font-size:16px;
  line-height:1.6;
}

/* Pill chip */
.mn-chip{
  display:inline-block;
  padding:4px 12px;
  background:var(--panel-2);
  border:1px solid var(--line);
  border-radius:99px;
  font-size:12px;
  font-weight:700;
  color:var(--text-2);
}
.mn-chip--brand{background:var(--brand-soft);border-color:var(--brand-line);color:var(--brand)}
.mn-chip--whisper{background:rgba(127,224,229,.12);border-color:rgba(127,224,229,.28);color:var(--brand-whisper)}
.mn-chip--gold{background:rgba(212,175,55,.12);border-color:rgba(212,175,55,.28);color:var(--brand-gold)}

/* Mobile */
@media (max-width:920px){
  .mn-nav{display:none}
  .mn-burger{display:flex}
  .mn-grid--3,.mn-grid--4{grid-template-columns:1fr}
  .mn-grid--2{grid-template-columns:1fr}
  .mn-foot__grid{grid-template-columns:1fr 1fr;gap:24px}
  .mn-shell{padding:0 16px}
  .mn-hero{padding:48px 0}
  .mn-section{padding:48px 0}
}
@media (max-width:520px){
  .mn-foot__grid{grid-template-columns:1fr}
  .mn-hero__cta{flex-direction:column;align-items:stretch}
  .mn-btn{justify-content:center}
}

/* Mobile menu drawer */
.mn-mobile{
  display:none;
  position:fixed;
  inset:var(--topbar-h) 0 0 0;
  background:rgba(10,15,20,.92);
  backdrop-filter:blur(20px);
  padding:24px;
  z-index:80;
  flex-direction:column;
  gap:8px;
}
.mn-mobile.is-open{display:flex}
.mn-mobile a{
  padding:14px 18px;
  text-decoration:none;
  color:var(--text);
  font-weight:700;
  font-size:16px;
  border-radius:var(--r-md);
  background:var(--panel);
}
.mn-mobile a:hover{background:var(--panel-2)}

/* Lang span toggle */
[data-lang="en"]{display:none}
html[data-lang="en"] [data-lang="vi"]{display:none}
html[data-lang="en"] [data-lang="en"]{display:inline}

/* Misc */
.mn-text-center{text-align:center}
.mn-muted{color:var(--muted)}
.mn-strong{color:var(--text);font-weight:800}