/* 10Plus — giao diện tổ chức: nền giấy kem + khối tối, thẻ bo tròn, thân thiện */
:root{
  --paper:#F4F0E8; --paper-2:#ECE6D9; --card:#FFFFFF;
  --ink:#14120F; --ink-2:#4A4740; --ink-3:#6B675E;
  --line:rgba(20,18,15,.10); --line-2:rgba(20,18,15,.18);
  --dark:#0E1013; --dark-2:#171A1F; --on-dark:#EEECE8; --on-dark-2:#A9AEB6; --line-d:rgba(238,236,232,.12);
  --gold:#B8975E; --gold-l:#E9D9B5; --gold-ink:#7A5E2E; --navy:#334862; --ok:#2F7D5B;
  --gold-rgb:184,151,94; --glow-rgb:233,217,181; --grad:linear-gradient(100deg,#B8975E,#E9D9B5 55%,#C9A96E); --btn-ink:#14120F;
  --r:24px; --r-sm:14px;
  --font:'Be Vietnam Pro','Segoe UI',system-ui,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;
  --ease:cubic-bezier(.2,.8,.2,1);
}

/* ===== TONE VARIANTS (đặt data-tone trên <html>) ===== */
:root[data-tone="rong"]{ /* Xanh rêu — tăng trưởng, gần gũi */
  --paper:#F1F3EC; --paper-2:#E4EADD; --ink:#10201A; --ink-2:#3F4F47; --ink-3:#5F6E66;
  --line:rgba(16,32,26,.10); --line-2:rgba(16,32,26,.18);
  --dark:#0C1F1A; --dark-2:#132A23; --on-dark:#ECF1EA; --on-dark-2:#A5B7AD; --line-d:rgba(236,241,234,.13);
  --gold:#7CCBA0; --gold-l:#CFEBD9; --gold-ink:#1D6A47; --ok:#1D6A47;
  --gold-rgb:124,203,160; --glow-rgb:190,232,208; --grad:linear-gradient(100deg,#5FB98A,#CFEBD9 55%,#7CCBA0); --btn-ink:#0C1F1A}
:root[data-tone="navy"]{ /* Xanh navy — tin cậy, tài chính */
  --paper:#EFF2F6; --paper-2:#E1E7EF; --ink:#0F1B2D; --ink-2:#434F68; --ink-3:#66728B;
  --line:rgba(15,27,45,.10); --line-2:rgba(15,27,45,.18);
  --dark:#0A1526; --dark-2:#11213A; --on-dark:#E8EEF7; --on-dark-2:#9FB0C8; --line-d:rgba(232,238,247,.13);
  --gold:#74AEE6; --gold-l:#CFE3F7; --gold-ink:#1F5A99; --ok:#1F7A5A;
  --gold-rgb:116,174,230; --glow-rgb:190,218,246; --grad:linear-gradient(100deg,#5A9AD8,#CFE3F7 55%,#74AEE6); --btn-ink:#0A1526}
:root[data-tone="dat"]{ /* Đất nung — ấm áp, thân thiện nhất */
  --paper:#F8F0E7; --paper-2:#F0E3D5; --ink:#2A1A14; --ink-2:#5A4338; --ink-3:#7C6558;
  --line:rgba(42,26,20,.10); --line-2:rgba(42,26,20,.18);
  --dark:#2A1812; --dark-2:#38231B; --on-dark:#F6ECE3; --on-dark-2:#CBB4A5; --line-d:rgba(246,236,227,.14);
  --gold:#EE9A6C; --gold-l:#F8D6C0; --gold-ink:#A04A20; --ok:#2F7D5B;
  --gold-rgb:238,154,108; --glow-rgb:248,208,184; --grad:linear-gradient(100deg,#E58452,#F8D6C0 55%,#EE9A6C); --btn-ink:#2A1812}

/* bộ chọn tone (chỉ hiện ở localhost / khi xem thử) */
.tone-sw{position:fixed;left:14px;bottom:14px;z-index:60;display:none;gap:8px;align-items:center;padding:8px 12px;border-radius:99px;background:var(--card);border:1px solid var(--line-2);box-shadow:0 12px 30px -12px rgba(0,0,0,.35)}
.tone-sw.on{display:flex}
.tone-sw small{font:.62rem var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin-right:4px}
.tone-sw button{width:26px;height:26px;border-radius:50%;border:2px solid transparent;cursor:pointer;padding:0}
.tone-sw button[aria-pressed=true]{border-color:var(--ink);box-shadow:0 0 0 2px var(--card) inset}
@media(max-width:560px){.tone-sw small{display:none}}

*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);font-family:var(--font);font-weight:400;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit}
::selection{background:var(--gold-l)}
:focus-visible{outline:2px solid var(--gold-ink);outline-offset:3px;border-radius:6px}
h1,h2,h3,h4{font-family:var(--font);font-weight:300;letter-spacing:-.02em;line-height:1.14;text-wrap:balance}
h1 em,h2 em{font-style:normal;font-weight:500;color:var(--gold-ink)}
.dark h1 em,.dark h2 em{color:var(--gold)}
.wrap{max-width:1180px;margin:0 auto;padding-inline:24px}
.eyebrow{font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--gold-ink)}
.dark .eyebrow{color:var(--gold)}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;background:var(--ink);color:#fff;padding:8px 14px;border-radius:99px;z-index:99}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:600 .92rem var(--font);padding:14px 26px;border-radius:99px;text-decoration:none;cursor:pointer;border:1px solid transparent;transition:transform .2s var(--ease),background .2s,border-color .2s,color .2s;white-space:nowrap}
.btn:active{transform:scale(.97)}
.btn-solid{background:var(--ink);color:var(--paper)}
.btn-solid:hover{opacity:.88}
.btn-gold{background:var(--grad);color:var(--btn-ink)}
.btn-gold:hover{filter:brightness(1.05)}
.btn-line{border-color:var(--line-2);color:var(--ink);background:transparent}
.btn-line:hover{border-color:var(--ink)}
.dark .btn-line{border-color:var(--line-d);color:var(--on-dark)}
.dark .btn-line:hover{border-color:var(--on-dark)}
.btn-full{width:100%}

/* floating pill nav */
.nav{position:fixed;top:14px;left:0;right:0;z-index:50;pointer-events:none}
.nav-in{pointer-events:auto;max-width:1180px;margin:0 auto;padding:8px 8px 8px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;background:rgba(14,16,19,.9);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--line-d);border-radius:99px;color:var(--on-dark);width:calc(100% - 28px)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--on-dark)}
.brand-mark{width:34px;height:34px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;font:700 .74rem var(--mono);color:#14120F;flex-shrink:0}
.brand-text{font-size:1.18rem;font-weight:500;letter-spacing:-.01em}
.brand-text b{font-weight:300;color:var(--gold)}
.nav-links{display:flex;gap:6px;list-style:none}
.nav-links a{display:block;padding:9px 16px;border-radius:99px;font-size:.88rem;color:var(--on-dark-2);text-decoration:none;transition:background .2s,color .2s}
.nav-links a:hover,.nav-links a.current{color:var(--on-dark);background:rgba(255,255,255,.08)}
.nav-cta{display:flex;align-items:center;gap:8px}
.nav-cta .btn{padding:11px 20px;font-size:.86rem}
.nav .btn-line{color:var(--on-dark);border-color:var(--line-d)}
.nav .btn-line:hover{border-color:var(--on-dark)}
.burger{display:none;width:44px;height:44px;border-radius:50%;border:1px solid var(--line-d);background:transparent;color:var(--on-dark);cursor:pointer;align-items:center;justify-content:center}
.burger span,.burger span::before{display:block;width:16px;height:1.5px;background:currentColor;position:relative;transition:transform .2s}
.burger span::before{content:'';position:absolute;top:5px}
.menu-open .burger span{transform:translateY(2.5px) rotate(45deg)}
.menu-open .burger span::before{transform:translateY(-5px) rotate(-90deg)}
.mobile-menu{display:none;pointer-events:auto;max-width:1180px;margin:8px auto 0;width:calc(100% - 28px);background:rgba(14,16,19,.96);border:1px solid var(--line-d);border-radius:var(--r);padding:12px;color:var(--on-dark)}
.mobile-menu a{display:block;padding:14px 16px;border-radius:12px;text-decoration:none;color:var(--on-dark);font-size:1rem}
.mobile-menu a:hover{background:rgba(255,255,255,.07)}
.menu-open .mobile-menu{display:block}
@media(max-width:900px){.nav-links,.nav-cta .btn-line{display:none}.burger{display:flex}.nav-in{padding-left:16px}}

/* sections */
section.blk{padding:104px 0}
section.blk.tight{padding:72px 0}
.dark{background:var(--dark);color:var(--on-dark)}
.alt{background:var(--paper-2)}
.sec-head{max-width:680px;margin-bottom:56px}
.sec-head h2{font-size:clamp(2rem,4vw,3.1rem);margin-top:14px}
.sec-head p{margin-top:18px;color:var(--ink-2);font-size:1.05rem;line-height:1.75}
.dark .sec-head p{color:var(--on-dark-2)}
.sec-head.center{margin-inline:auto;text-align:center}
@media(max-width:720px){section.blk{padding:68px 0}.sec-head{margin-bottom:36px}}

/* hero */
.hero{padding:150px 0 90px;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;right:-220px;top:-120px;width:720px;height:720px;border-radius:50%;background:radial-gradient(circle at 35% 35%,rgba(var(--glow-rgb),.75),rgba(var(--glow-rgb),0) 65%);pointer-events:none}
.hero::after{content:'';position:absolute;right:-60px;top:80px;width:480px;height:480px;border-radius:50%;border:1px solid var(--line-2);pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;position:relative;z-index:1}
.pill-tag{display:inline-flex;align-items:center;gap:10px;padding:7px 16px 7px 12px;border:1px solid var(--line-2);border-radius:99px;font:500 .78rem var(--mono);letter-spacing:.04em;background:var(--pill-bg,rgba(255,255,255,.55))}
.pill-tag i{width:8px;height:8px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(var(--gold-rgb),.25);animation:pulse 2.4s infinite}
@keyframes pulse{50%{box-shadow:0 0 0 8px rgba(var(--gold-rgb),0)}}
.hero h1{font-size:clamp(2.5rem,5.4vw,4.4rem);margin-top:26px;line-height:1.08}
.hero .lead{margin-top:26px;font-size:1.12rem;color:var(--ink-2);line-height:1.75;max-width:50ch}
.hero-ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px}
.hero-note{margin-top:18px;font:.78rem var(--mono);color:var(--ink-3)}

/* mock dashboard */
.mock{background:var(--card);border:1px solid var(--line);border-radius:28px;padding:22px;box-shadow:0 30px 60px -30px rgba(20,18,15,.28),0 2px 0 rgba(255,255,255,.8) inset;position:relative}
.mock-bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;font:.7rem var(--mono);color:var(--ink-3);letter-spacing:.06em;text-transform:uppercase}
.mock-bar b{font-weight:500;color:var(--gold-ink)}
.mock-total{display:flex;align-items:baseline;gap:12px;margin-bottom:6px}
.mock-total strong{font-size:2.2rem;font-weight:300;letter-spacing:-.03em}
.mock-total span{font:.78rem var(--mono);color:var(--ok)}
.mock-sub{font-size:.8rem;color:var(--ink-3);margin-bottom:18px}
.spark{display:block;width:100%;height:56px;margin-bottom:18px}
.mock-row{display:flex;align-items:center;gap:12px;padding:12px 0;border-top:1px solid var(--line)}
.mock-ico{width:36px;height:36px;border-radius:10px;background:var(--paper);display:flex;align-items:center;justify-content:center;font:600 .72rem var(--mono);color:var(--gold-ink);flex-shrink:0}
.mock-row div{flex:1;min-width:0}
.mock-row strong{display:block;font-size:.88rem;font-weight:500}
.mock-row small{color:var(--ink-3);font-size:.76rem}
.mock-row em{font:normal .8rem var(--mono);color:var(--ink)}
.chip{font:500 .68rem var(--mono);padding:3px 10px;border-radius:99px;background:rgba(47,125,91,.12);color:var(--ok)}
.chip.warn{background:rgba(var(--gold-rgb),.2);color:var(--gold-ink)}
.mock-float{position:absolute;left:-40px;bottom:-58px;background:var(--float-bg,var(--ink));color:var(--float-fg,var(--on-dark));border-radius:18px;padding:14px 18px;font-size:.8rem;max-width:230px;box-shadow:0 20px 40px -16px rgba(0,0,0,.5)}
.mock-float small{display:block;font:.64rem var(--mono);color:var(--gold);letter-spacing:.1em;text-transform:uppercase;margin-bottom:4px}
.mock-caption{margin-top:72px;font:.7rem var(--mono);color:var(--ink-3);text-align:right}
@media(max-width:960px){.hero{padding-top:128px}.hero-grid{grid-template-columns:1fr}.mock-float{left:12px}.hero::after{display:none}}

/* marquee */
.marquee{border-block:1px solid var(--line);overflow:hidden;background:var(--paper)}
.marquee-track{display:flex;gap:48px;width:max-content;padding:18px 0;animation:slide 40s linear infinite}
.marquee-track span{font:500 .8rem var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2);display:flex;align-items:center;gap:48px;white-space:nowrap}
.marquee-track span::after{content:'✦';color:var(--gold)}
@keyframes slide{to{transform:translateX(-50%)}}

/* compare */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.cmp{border-radius:var(--r);padding:34px}
.cmp.old{border:1px solid var(--line-d)}
.cmp.new{background:linear-gradient(160deg,rgba(var(--gold-rgb),.2),rgba(var(--gold-rgb),.05));border:1px solid rgba(var(--gold-rgb),.45)}
.cmp h3{font:500 .74rem var(--mono);letter-spacing:.12em;text-transform:uppercase;margin-bottom:22px}
.cmp.old h3{color:var(--on-dark-2)}.cmp.new h3{color:var(--gold)}
.cmp ul{list-style:none;display:flex;flex-direction:column;gap:16px}
.cmp li{display:flex;gap:12px;font-size:.98rem;line-height:1.55}
.cmp.old li{color:var(--on-dark-2)}
.cmp li svg{flex-shrink:0;margin-top:5px}
@media(max-width:760px){.compare{grid-template-columns:1fr}}

/* cards */
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:32px;display:flex;flex-direction:column;transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
.card:hover{transform:translateY(-4px);box-shadow:0 24px 40px -24px rgba(20,18,15,.25)}
.num{width:42px;height:42px;border-radius:50%;background:var(--num-bg,var(--ink));color:var(--num-fg,var(--gold-l));display:flex;align-items:center;justify-content:center;font:500 .8rem var(--mono);margin-bottom:26px}
.card h3{font-size:1.55rem;font-weight:400;margin-bottom:12px}
.card p{color:var(--ink-2);font-size:.96rem;line-height:1.7}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:22px}
.tag{font:.7rem var(--mono);padding:5px 12px;border-radius:99px;background:var(--paper);border:1px solid var(--line);color:var(--ink-2)}
.card .more{margin-top:22px;font-weight:600;font-size:.88rem;text-decoration:none;color:var(--gold-ink)}
@media(max-width:900px){.cards-3{grid-template-columns:1fr}}

/* bento ecosystem */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.bx{border-radius:var(--r);padding:30px;background:var(--dark-2);border:1px solid var(--line-d);color:var(--on-dark);text-decoration:none;display:flex;flex-direction:column;gap:10px;position:relative;overflow:hidden;transition:border-color .3s,transform .35s var(--ease)}
a.bx:hover{border-color:var(--gold);transform:translateY(-3px)}
.bx.s2{grid-column:span 2}.bx.s3{grid-column:span 3}.bx.s4{grid-column:span 4}
.bx small{font:.68rem var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--gold)}
.bx h3{font-size:1.5rem;font-weight:400;color:var(--on-dark)}
.bx p{font-size:.92rem;color:var(--on-dark-2);line-height:1.65;max-width:46ch}
.bx .go{margin-top:auto;padding-top:14px;font:.76rem var(--mono);color:var(--gold)}
.bx.gold{background:var(--grad);color:#14120F;border:none}
.bx.gold small,.bx.gold h3,.bx.gold p,.bx.gold .go{color:var(--btn-ink)}
@media(max-width:900px){.bento{grid-template-columns:1fr 1fr}.bx.s2,.bx.s3,.bx.s4{grid-column:span 2}}
@media(max-width:560px){.bento{grid-template-columns:1fr}.bx.s2,.bx.s3,.bx.s4{grid-column:auto}}

/* audience */
.aud{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.aud .card{min-height:300px}
.aud .k{font:.7rem var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--gold-ink);margin-bottom:18px}
.aud ul{list-style:none;margin-top:18px;display:flex;flex-direction:column;gap:10px}
.aud li{font-size:.9rem;color:var(--ink-2);padding-left:20px;position:relative}
.aud li::before{content:'';position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:50%;background:var(--gold)}
@media(max-width:900px){.aud{grid-template-columns:1fr}.aud .card{min-height:0}}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:s}
.step{border-top:1px solid var(--line-2);padding-top:22px}
.step b{display:block;font:500 .78rem var(--mono);color:var(--gold-ink);margin-bottom:16px;letter-spacing:.1em}
.step h4{font-size:1.25rem;font-weight:500;margin-bottom:8px;letter-spacing:-.01em}
.step p{font-size:.92rem;color:var(--ink-2);line-height:1.65}
.dark .step{border-color:var(--line-d)}.dark .step p{color:var(--on-dark-2)}.dark .step b{color:var(--gold)}
@media(max-width:900px){.steps{grid-template-columns:1fr 1fr;gap:32px 20px}}
@media(max-width:560px){.steps{grid-template-columns:1fr}}

/* principles */
.vals{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.val{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px}
.val h4{font-size:1.4rem;font-weight:400;margin-bottom:10px}
.val h4::before{content:'';display:block;width:28px;height:3px;border-radius:2px;background:var(--gold);margin-bottom:18px}
.val p{font-size:.9rem;color:var(--ink-2);line-height:1.65}
@media(max-width:900px){.vals{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.vals{grid-template-columns:1fr}}

/* team */
.team{display:grid;grid-template-columns:auto 1fr;gap:28px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:28px}
.team img{width:104px;height:104px;border-radius:50%;object-fit:cover;object-position:center top;border:3px solid var(--gold-l)}
.team h3{font-size:1.4rem;font-weight:500}
.team p{color:var(--ink-2);font-size:.94rem;margin-top:6px;max-width:60ch}
.team .role{font:.72rem var(--mono);color:var(--gold-ink);letter-spacing:.06em;margin-top:4px}
@media(max-width:560px){.team{grid-template-columns:1fr;text-align:left}}

/* faq */
.faq{border-top:1px solid var(--line-2);max-width:820px}
.faq details{border-bottom:1px solid var(--line-2)}
.faq summary{list-style:none;cursor:pointer;padding:24px 4px;display:flex;justify-content:space-between;align-items:center;gap:20px;font-size:1.1rem;font-weight:400}
.faq summary::-webkit-details-marker{display:none}
.faq .plus{width:32px;height:32px;border-radius:50%;border:1px solid var(--line-2);display:flex;align-items:center;justify-content:center;font:1rem var(--mono);color:var(--gold-ink);flex-shrink:0;transition:transform .25s var(--ease),background .2s}
.faq details[open] .plus{transform:rotate(45deg);background:var(--gold-l)}
.faq p{padding:0 4px 26px;max-width:64ch;color:var(--ink-2);line-height:1.75}

/* contact */
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:start}
.form-card{background:var(--card);color:var(--ink);border-radius:28px;padding:36px}
.form-card h3{font-size:1.6rem;font-weight:400;margin-bottom:6px}
.form-card .sub{color:var(--ink-3);font-size:.9rem;margin-bottom:26px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.field label{font:.7rem var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}
.field input,.field select,.field textarea{background:var(--paper);border:1px solid transparent;border-radius:14px;padding:14px 16px;font:.95rem var(--font);color:var(--ink);transition:border-color .2s,background .2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--gold);background:#fff}
.field textarea{resize:vertical;min-height:90px}
.field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%237A5E2E' stroke-width='1.5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;background-size:12px 8px;padding-right:38px}
.form-note{margin-top:14px;font-size:.78rem;color:var(--ink-3);line-height:1.6}
.form-success{display:none;margin-top:16px;padding:14px 18px;border-radius:14px;background:rgba(47,125,91,.1);color:var(--ok);font-size:.88rem}
.form-success.show{display:block}
.contact-side{display:flex;flex-direction:column;gap:12px}
.ccard{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid var(--line-d);border-radius:20px;padding:22px 26px;text-decoration:none;color:var(--on-dark);transition:border-color .2s,background .2s}
.ccard:hover{border-color:var(--gold);background:rgba(255,255,255,.03)}
.ccard small{display:block;font:.68rem var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--gold);margin-bottom:4px}
.ccard strong{font-size:1.25rem;font-weight:400}
.ccard span{color:var(--gold);font-size:1.3rem}
@media(max-width:900px){.contact-grid{grid-template-columns:1fr}}
@media(max-width:560px){.field-row{grid-template-columns:1fr}.form-card{padding:26px}}

/* page hero + detail */
.page-hero{padding:152px 0 72px;position:relative;overflow:hidden}
.page-hero::before{content:'';position:absolute;right:-180px;top:-140px;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle,rgba(var(--glow-rgb),.7),rgba(var(--glow-rgb),0) 65%);pointer-events:none}
.page-hero h1{font-size:clamp(2.3rem,4.8vw,3.8rem);margin-top:18px;max-width:18ch;position:relative}
.page-hero .lead{margin-top:22px;max-width:58ch;color:var(--ink-2);font-size:1.1rem;line-height:1.75;position:relative}
.svc{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;padding:56px 0;border-top:1px solid var(--line-2)}
.svc h2{font-size:clamp(1.7rem,3vw,2.3rem);margin-top:6px}
.svc .sub{color:var(--ink-2);margin-top:14px;line-height:1.75}
.svc-cols{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.box{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px}
.box h4{font:500 .7rem var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--gold-ink);margin-bottom:16px}
.box ul{list-style:none;display:flex;flex-direction:column;gap:12px}
.box li{font-size:.92rem;color:var(--ink-2);line-height:1.6;padding-left:18px;position:relative}
.box li::before{content:'';position:absolute;left:0;top:.6em;width:7px;height:7px;border-radius:50%;background:var(--gold)}
@media(max-width:900px){.svc{grid-template-columns:1fr;gap:24px}.svc-cols{grid-template-columns:1fr}}
.cta-band{border-radius:32px;padding:56px;background:var(--dark);color:var(--on-dark);display:flex;justify-content:space-between;align-items:center;gap:28px;flex-wrap:wrap;position:relative;overflow:hidden}
.cta-band::after{content:'';position:absolute;right:-100px;top:-100px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(var(--gold-rgb),.45),transparent 65%)}
.cta-band h3{font-size:clamp(1.6rem,3vw,2.3rem);max-width:24ch;position:relative}
.cta-band .btn{position:relative;z-index:1}
@media(max-width:560px){.cta-band{padding:34px 26px}}

/* posts */
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.post-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:28px;text-decoration:none;display:flex;flex-direction:column;gap:12px;transition:transform .3s var(--ease)}
.post-card:hover{transform:translateY(-4px)}
.post-card time{font:.72rem var(--mono);color:var(--ink-3)}
.post-card h3{font-size:1.35rem;font-weight:400;line-height:1.3}
.post-card p{font-size:.9rem;color:var(--ink-2)}
.empty-note{border:1px dashed var(--line-2);border-radius:var(--r);padding:40px;color:var(--ink-2);background:var(--pill-bg,rgba(255,255,255,.4))}
.empty-note a{color:var(--gold-ink);font-weight:600}
@media(max-width:900px){.posts{grid-template-columns:1fr}}
.prose{max-width:68ch}
.prose p,.prose li{color:var(--ink-2);line-height:1.85;margin-bottom:1.1em;font-size:1.02rem}
.prose h2{font-size:1.8rem;margin:1.6em 0 .6em}
.prose a{color:var(--gold-ink)}

/* footer */
footer{background:var(--dark);color:var(--on-dark);padding:80px 0 36px;position:relative;overflow:hidden}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;border-bottom:1px solid var(--line-d)}
.foot-grid h4{font:500 .7rem var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--gold);margin-bottom:18px}
.foot-grid ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.foot-grid a{color:var(--on-dark-2);text-decoration:none;font-size:.92rem}
.foot-grid a:hover{color:var(--on-dark)}
.foot-about p{color:var(--on-dark-2);font-size:.92rem;margin-top:16px;max-width:36ch}
.giant{font-size:clamp(5rem,20vw,16rem);font-weight:200;letter-spacing:-.05em;line-height:.9;color:transparent;-webkit-text-stroke:1px rgba(238,236,232,.12);margin:36px 0 10px;user-select:none}
.foot-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.78rem;color:var(--on-dark-2)}
.foot-bottom p{max-width:70ch;line-height:1.6}
@media(max-width:900px){.foot-grid{grid-template-columns:1fr 1fr}.foot-about{grid-column:span 2}}

/* floating zalo */
.fab{position:fixed;right:18px;bottom:18px;z-index:45;display:flex;align-items:center;gap:10px;padding:12px 20px;border-radius:99px;background:var(--ink);color:var(--paper);text-decoration:none;font:600 .86rem var(--font);box-shadow:0 14px 30px -10px rgba(0,0,0,.45)}
.fab i{width:8px;height:8px;border-radius:50%;background:#4ADE80;box-shadow:0 0 0 3px rgba(74,222,128,.25)}

/* reveal */
.js .rv{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.js .rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.js .rv{opacity:1;transform:none}html{scroll-behavior:auto}}

/* ===== GIẢI PHÁP LAN TOẢ ===== */
.radiate{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:center}
.rad-copy h2{font-size:clamp(2rem,3.8vw,3rem);margin-top:14px}
.rad-lead{margin-top:18px;color:var(--ink-2);font-size:1.05rem;line-height:1.75;max-width:46ch}
.rad-panel{margin-top:32px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px;min-height:190px}
.rad-panel small{font:.7rem var(--mono);letter-spacing:.12em;color:var(--gold-ink)}
.rad-panel h3{font-size:1.5rem;font-weight:400;margin:10px 0 8px}
.rad-panel p{color:var(--ink-2);font-size:.95rem;line-height:1.7}
.rad-panel .more{display:inline-block;margin-top:14px;font-weight:600;font-size:.88rem;text-decoration:none;color:var(--gold-ink)}
.stage{position:relative;width:100%;max-width:620px;aspect-ratio:1/1;margin:0 auto 36px;justify-self:center}
.stage>*{position:absolute}
.wave,.orbit{left:50%;top:50%;border-radius:50%;transform:translate(-50%,-50%);pointer-events:none}
.wave{width:16%;height:16%;border:1.5px solid var(--gold);opacity:0}
.stage.go .wave{animation:ripple 4.8s cubic-bezier(.2,.6,.3,1) infinite}
.stage.go .w2{animation-delay:1.6s}.stage.go .w3{animation-delay:3.2s}
@keyframes ripple{0%{transform:translate(-50%,-50%) scale(.6);opacity:.7}100%{transform:translate(-50%,-50%) scale(6.1);opacity:0}}
.orbit{border:1px dashed var(--line-2)}
.o1{width:48%;height:48%}.o2{width:86%;height:86%}
.links{inset:0;width:100%;height:100%;overflow:visible;pointer-events:none}
.ln{fill:none;stroke:var(--gold);stroke-width:.35;stroke-dasharray:1;stroke-dashoffset:1;transition:stroke-dashoffset 1.1s var(--ease) var(--d)}
.stage.go .ln{stroke-dashoffset:0}
.pk{fill:var(--gold-ink);opacity:0}
.stage.go .pk{opacity:.9}
.core{left:50%;top:50%;width:17%;aspect-ratio:1/1;transform:translate(-50%,-50%);border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;font:700 clamp(.9rem,2.4vw,1.4rem) var(--mono);color:var(--btn-ink);box-shadow:0 0 0 8px rgba(var(--gold-rgb),.18),0 18px 40px -12px rgba(var(--gold-rgb),.7);z-index:3}
.node{left:50%;top:50%;transform:translate(-50%,-50%) scale(.2);opacity:0;background:none;border:0;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:8px;font-family:var(--font);color:var(--ink);z-index:2;transition:left .9s var(--ease) var(--d),top .9s var(--ease) var(--d),transform .9s var(--ease) var(--d),opacity .5s ease var(--d)}
.stage.go .node{left:var(--x);top:var(--y);transform:translate(-50%,-50%) scale(1);opacity:1}
.node .dot{width:clamp(40px,10%,62px);width:clamp(40px,9vw,62px);aspect-ratio:1/1;border-radius:50%;background:var(--card);border:1.5px solid var(--line-2);display:flex;align-items:center;justify-content:center;font:500 clamp(.7rem,1.8vw,.88rem) var(--mono);color:var(--gold-ink);transition:background .25s,color .25s,border-color .25s,transform .3s var(--ease),box-shadow .3s}
.node.out .dot{width:clamp(34px,7.5vw,50px);background:var(--paper)}
.node .lbl{font-size:clamp(.66rem,1.5vw,.82rem);font-weight:500;line-height:1.25;text-align:center;max-width:9.5em;color:var(--ink-2)}
.node:hover .dot,.node.on .dot{background:var(--num-bg,var(--ink));color:var(--num-fg,var(--gold-l));border-color:var(--num-bg,var(--ink));transform:scale(1.14);box-shadow:0 0 0 7px rgba(var(--gold-rgb),.25)}
.node.on .lbl{color:var(--ink)}
@media(max-width:960px){.radiate{grid-template-columns:1fr;gap:40px}.rad-lead{max-width:none}}
@media(prefers-reduced-motion:reduce){.stage .node{left:var(--x);top:var(--y);transform:translate(-50%,-50%);opacity:1}.ln{stroke-dashoffset:0}.pk{display:none}.wave{display:none}}

/* ===== CÁT BỤI GIÁ TRỊ (hero trang con) ===== */
.dust{position:absolute;right:0;top:96px;bottom:0;width:46%;pointer-events:none;z-index:0}
.dust canvas{position:absolute;inset:0;width:100%;height:100%}
.dust-cap{position:absolute;right:24px;bottom:22px;max-width:30ch;text-align:right;font-size:.82rem;color:var(--ink-3);line-height:1.5}
.dust-cap b{display:block;font:500 .68rem var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--gold-ink);margin-bottom:4px}
.dark .dust-cap{color:var(--on-dark-2)}.dark .dust-cap b{color:var(--gold)}
.dust.swap .dust-cap{animation:capIn .9s var(--ease)}
@keyframes capIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.page-hero>.wrap{position:relative;z-index:1}
@media(max-width:960px){.dust{position:relative;right:auto;top:auto;bottom:auto;width:100%;height:230px;margin-top:8px}.dust-cap{right:auto;left:24px;text-align:left;bottom:6px}}
.field.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-success.err{background:rgba(160,74,32,.1);color:var(--gold-ink)}
.btn:disabled{opacity:.6;cursor:wait}
.val-head{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;margin-bottom:8px}
.val-head .sec-head{margin-bottom:24px}
.dust.inline{position:relative;right:auto;top:auto;bottom:auto;width:100%;height:300px}
@media(max-width:960px){.val-head{grid-template-columns:1fr}.dust.inline{height:230px}}

/* nội dung bài viết */
.prose ul,.prose ol{padding-left:1.3em;margin-bottom:1.1em}
.prose li{margin-bottom:.45em}
.prose strong{color:var(--ink);font-weight:600}
.prose blockquote{border-left:3px solid var(--gold);background:rgba(var(--gold-rgb),.12);padding:14px 18px;border-radius:0 var(--r-sm) var(--r-sm) 0;margin:1.4em 0;color:var(--ink-2);font-size:.95rem;line-height:1.7}
.prose table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:.92rem;display:block;overflow-x:auto}
.prose th,.prose td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.prose th{font:500 .7rem var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--gold-ink)}

/* ===== NÚT & BẢNG TUỲ CHỈNH GIAO DIỆN TRONG MENU ===== */
.cust-btn{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 16px;border-radius:99px;border:1px solid var(--line-d);background:transparent;color:var(--on-dark);font:500 .84rem var(--font);cursor:pointer;transition:background .2s,border-color .2s}
.cust-btn:hover,.cust-btn[aria-expanded=true]{background:rgba(255,255,255,.09);border-color:var(--gold)}
.cust-btn svg{color:var(--gold)}
@media(max-width:1100px){.cust-btn span{display:none}.cust-btn{width:44px;padding:0;justify-content:center}}
@media(max-width:900px){.cust-btn{display:none}}
.cust{pointer-events:auto;position:absolute;top:calc(100% + 10px);right:14px;width:min(340px,calc(100vw - 28px));background:var(--dark-2);color:var(--on-dark);border:1px solid var(--line-d);border-radius:24px;padding:20px;box-shadow:0 30px 60px -20px rgba(0,0,0,.6);z-index:60}
.cust[hidden]{display:none}
@media(max-width:900px){.cust{right:50%;transform:translateX(50%)}}
.cust-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.cust-head strong{font-weight:500;font-size:1.05rem}
.cust-x{width:34px;height:34px;border-radius:50%;border:1px solid var(--line-d);background:transparent;color:var(--on-dark);font-size:1.3rem;line-height:1;cursor:pointer}
.cust-g{margin-top:14px}
.cust-g p{font:.66rem var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--gold);margin-bottom:8px}
.cust-row{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.cust-row.seg{display:flex;gap:6px;background:rgba(255,255,255,.06);padding:4px;border-radius:99px}
.cust-row button{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:14px;border:1px solid var(--line-d);background:transparent;color:var(--on-dark);font:500 .82rem var(--font);cursor:pointer;transition:background .2s,border-color .2s,color .2s}
.cust-row.seg button{flex:1;justify-content:center;border:0;border-radius:99px;padding:9px 6px;color:var(--on-dark-2)}
.cust-row button i{width:22px;height:22px;border-radius:50%;flex-shrink:0;border:1px solid rgba(255,255,255,.25)}
.cust-row button:hover{border-color:var(--gold)}
.cust-row button[aria-pressed=true]{border-color:var(--gold);background:rgba(var(--gold-rgb),.16);color:var(--on-dark)}
.cust-row.seg button[aria-pressed=true]{background:var(--grad);color:var(--btn-ink)}
.cust-reset{margin-top:16px;width:100%;padding:10px;border-radius:99px;border:1px dashed var(--line-d);background:transparent;color:var(--on-dark-2);font:.8rem var(--font);cursor:pointer}
.cust-reset:hover{color:var(--on-dark);border-color:var(--gold)}
.mobile-menu a#custMob{color:var(--gold)}

/* ===== CHẾ ĐỘ TỐI ===== */
:root[data-mode="dark"]{
  --paper:var(--dark-2); --paper-2:var(--dark); --card:rgba(255,255,255,.055);
  --ink:var(--on-dark); --ink-2:var(--on-dark-2); --ink-3:var(--on-dark-2);
  --line:var(--line-d); --line-2:rgba(238,236,232,.22);
  --gold-ink:var(--gold);
  --pill-bg:rgba(255,255,255,.06); --float-bg:var(--gold-l); --float-fg:var(--dark);
  --num-bg:var(--gold); --num-fg:var(--dark);
  color-scheme:dark}
:root[data-mode="dark"] .dark{background:var(--dark)}
:root[data-mode="dark"] .alt{background:var(--dark)}
:root[data-mode="dark"] .hero::before,:root[data-mode="dark"] .page-hero::before{opacity:.35}
:root[data-mode="dark"] .btn-solid{background:var(--on-dark);color:var(--dark)}
:root[data-mode="dark"] .fab{background:var(--on-dark);color:var(--dark)}
:root[data-mode="dark"] .mock{box-shadow:0 30px 60px -30px rgba(0,0,0,.7)}
:root[data-mode="dark"] .field input,:root[data-mode="dark"] .field select,:root[data-mode="dark"] .field textarea{background:rgba(255,255,255,.07);color:var(--on-dark)}
:root[data-mode="dark"] .field input:focus,:root[data-mode="dark"] .field select:focus,:root[data-mode="dark"] .field textarea:focus{background:rgba(255,255,255,.12)}
:root[data-mode="dark"] .form-card{background:rgba(255,255,255,.07);color:var(--on-dark)}
:root[data-mode="dark"] .node.out .dot{background:var(--dark-2)}
:root[data-mode="dark"] .marquee{background:var(--dark-2)}
:root[data-mode="dark"] .tag{background:rgba(255,255,255,.07)}

/* ===== CỠ CHỮ & TẮT HIỆU ỨNG ===== */
:root[data-fs="s"]{font-size:92%}
:root[data-fs="l"]{font-size:112%}
:root[data-motion="off"] *,:root[data-motion="off"] *::before,:root[data-motion="off"] *::after{animation:none!important;transition:none!important}
:root[data-motion="off"] .js .rv,:root[data-motion="off"].js .rv{opacity:1;transform:none}
:root[data-motion="off"] .stage .node{left:var(--x);top:var(--y);transform:translate(-50%,-50%);opacity:1}
:root[data-motion="off"] .ln{stroke-dashoffset:0}
:root[data-motion="off"] .pk,:root[data-motion="off"] .wave{display:none}
:root[data-motion="off"]{scroll-behavior:auto}