:root{
  --font-ui:"Segoe UI","Segoe UI Variable Text",system-ui,-apple-system,BlinkMacSystemFont,sans-serif;
  --ink:#22384a;--ink-soft:#586b7a;--blue:#2b648d;--blue-deep:#193f5e;--blue-soft:#eef5f8;
  --paper:#fcfbf8;--surface:#fffefa;--line:#e4e2dc;--warm:#f4efe7;--success:#3e7564;
  --shadow:0 16px 42px rgba(31,55,75,.065);--radius:18px;--max:1180px;
  font-family:var(--font-ui);
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-ui);font-size:16.5px;line-height:1.72;font-weight:400}
button,input,select,textarea{font-family:var(--font-ui)}
a{color:inherit;text-decoration:none}.wrap{width:min(var(--max),calc(100% - 40px));margin:auto}
.topbar{background:var(--blue-deep);color:#edf5f9;font-size:13px;letter-spacing:.01em}.topbar .wrap{display:flex;justify-content:space-between;gap:20px;padding:8px 0}
.header{position:sticky;top:0;z-index:50;background:rgba(252,251,248,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(228,226,220,.9)}
.nav{height:78px;display:flex;align-items:center;gap:30px}.brand{display:flex;align-items:center;gap:12px;min-width:245px}.brand img{width:44px;height:44px;object-fit:contain}.brand strong{display:block;font-size:15px;letter-spacing:.025em;font-weight:600}.brand span{display:block;color:var(--ink-soft);font-size:12px;margin-top:1px}
.links{display:flex;align-items:center;gap:24px;margin-left:auto;font-size:14px;color:#344b5e}.links a{padding:9px 0;border-bottom:1px solid transparent}.links a:hover{color:var(--blue);border-color:#aac6d9}.login-btn{border:1px solid #c5d4de!important;border-radius:999px!important;padding:10px 17px!important;color:var(--blue-deep)!important}.mobile-toggle{display:none;margin-left:auto;border:0;background:transparent;font-size:24px}
.hero{position:relative;overflow:hidden;padding:90px 0 80px;background:linear-gradient(145deg,#fbfaf7 0%,#f0f6f8 58%,#f7f1e9 100%)}.hero:after{content:"";position:absolute;width:520px;height:520px;border:1px solid rgba(43,100,141,.11);border-radius:50%;right:-130px;top:-210px;box-shadow:0 0 0 70px rgba(43,100,141,.025),0 0 0 140px rgba(43,100,141,.018)}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.2fr .8fr;gap:70px;align-items:center}.eyebrow{letter-spacing:.07em;font-size:12.5px;color:var(--blue);font-weight:600;margin-bottom:18px}.hero h1{font-size:clamp(40px,5vw,66px);line-height:1.12;letter-spacing:-.014em;font-weight:500;margin:0 0 24px;max-width:850px}.hero p{font-size:18px;color:var(--ink-soft);max-width:720px;margin:0 0 30px;line-height:1.75}.actions{display:flex;flex-wrap:wrap;gap:12px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 18px;border-radius:999px;border:1px solid #c1d0d9;font-size:14px;font-weight:500;background:#fffefa}.btn.primary{background:var(--blue-deep);color:white;border-color:var(--blue-deep)}
.hero-mark{padding:36px;background:rgba(255,254,250,.8);border:1px solid rgba(255,255,255,.9);border-radius:30px;box-shadow:var(--shadow);backdrop-filter:blur(10px)}.hero-mark img{display:block;width:min(260px,80%);margin:0 auto 24px}.hero-mark blockquote{margin:0;text-align:center;font-size:18px;line-height:1.7;color:#344c5e;font-weight:400}.hero-mark small{display:block;margin-top:14px;color:#71818e;text-align:center}
.section{padding:84px 0}.section.soft{background:#f3f7f7}.section.dark{background:var(--blue-deep);color:white}.section.warm{background:var(--warm)}.section-head{display:grid;grid-template-columns:.85fr 1.15fr;gap:55px;align-items:end;margin-bottom:38px}.section h2{font-size:clamp(30px,3vw,45px);line-height:1.24;letter-spacing:-.01em;font-weight:500;margin:0}.section-head p{margin:0;color:var(--ink-soft);font-size:17px;line-height:1.75}.dark .section-head p{color:#d9e5ec}.kicker{font-size:12.5px;letter-spacing:.065em;color:var(--blue);font-weight:600;margin-bottom:10px}.dark .kicker{color:#a8cadf}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:27px;box-shadow:0 7px 22px rgba(31,55,75,.03)}.card h3{font-size:20px;line-height:1.42;font-weight:500;margin:10px 0}.card p{color:var(--ink-soft);margin:0}.num{font-size:12px;color:var(--blue);letter-spacing:.07em}.dark .card{background:rgba(255,255,255,.055);border-color:rgba(255,255,255,.14);box-shadow:none}.dark .card p{color:#d8e3ea}.dark .num{color:#a8c9de}
.editorial-list{border-top:1px solid var(--line)}.editorial-item{display:grid;grid-template-columns:140px 1fr 180px;gap:24px;padding:25px 0;border-bottom:1px solid var(--line);align-items:start}.editorial-item time{color:#788692;font-size:13px}.editorial-item h3{margin:0 0 8px;font-size:20px;font-weight:500}.editorial-item p{margin:0;color:var(--ink-soft)}.editorial-item .tag{text-align:right;color:var(--blue);font-size:13px}
.quote{max-width:880px;margin:auto;text-align:center}.quote p{font-family:var(--font-ui);font-size:clamp(28px,4vw,45px);line-height:1.48;margin:0;color:#f6fbff;font-weight:400;font-style:italic;letter-spacing:-.006em}.quote span{display:block;margin-top:20px;color:#afc9da;font-size:13px;letter-spacing:.07em}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:20px;overflow:hidden}.metric{background:#fffefa;padding:26px}.metric strong{display:block;font-size:30px;font-weight:500}.metric span{font-size:13px;color:var(--ink-soft)}
.page-hero{padding:64px 0 44px;border-bottom:1px solid var(--line);background:linear-gradient(135deg,#fbfaf7,#eef5f7)}.page-hero h1{font-size:clamp(34px,4vw,53px);font-weight:500;letter-spacing:-.012em;line-height:1.2;margin:8px 0 14px}.page-hero p{max-width:780px;color:var(--ink-soft);font-size:17px;line-height:1.76;margin:0}.crumb{font-size:12px;color:var(--blue);letter-spacing:.065em}
.content{padding:58px 0 92px}.prose{max-width:780px}.prose h2{font-size:30px;font-weight:500;margin-top:46px;line-height:1.34;letter-spacing:-.006em}.prose h3{font-size:21px;font-weight:500;margin-top:34px;line-height:1.4}.prose p,.prose li{color:#3f5567;line-height:1.82}.prose blockquote{border-left:3px solid #aec6d5;margin:36px 0;padding:10px 0 10px 24px;font-family:var(--font-ui);font-size:22px;line-height:1.65;font-style:italic;color:#385065}.meta{display:flex;gap:14px;flex-wrap:wrap;font-size:13px;color:#72818e;margin:18px 0 34px}
.login-shell{min-height:calc(100vh - 120px);display:grid;place-items:center;padding:60px 20px;background:linear-gradient(145deg,#faf9f6,#eef5f7)}.login-card{width:min(520px,100%);background:#fffefa;border:1px solid var(--line);border-radius:24px;padding:35px;box-shadow:var(--shadow)}.login-card h1{font-size:30px;font-weight:500;margin:5px 0 10px;letter-spacing:-.006em}.field{margin-top:18px}.field label{display:block;font-size:13px;color:#5c6f7e;margin-bottom:7px}.field input,.field select{width:100%;height:46px;border:1px solid #d2d9dc;border-radius:12px;padding:0 13px;font:inherit;background:#fffefa}.notice{margin-top:18px;padding:14px;border-radius:12px;background:#eef5f8;color:#3b5b70;font-size:13px}
.internal-layout{display:grid;grid-template-columns:230px 1fr;gap:32px;padding:44px 0 82px}.side{position:sticky;top:110px;height:max-content}.side a{display:block;padding:9px 12px;border-radius:10px;font-size:14px;color:#5a6d7c}.side a.active,.side a:hover{background:#edf4f7;color:var(--blue-deep)}.panel{background:#fffefa;border:1px solid var(--line);border-radius:18px;padding:25px}.panel h2{font-size:24px;font-weight:500;margin:0 0 15px;letter-spacing:-.005em}.table{width:100%;border-collapse:collapse;font-size:14px}.table th,.table td{padding:13px 10px;border-bottom:1px solid #ebe8e2;text-align:left}.table th{font-weight:600;color:#556777}.badge{display:inline-flex;padding:4px 9px;border-radius:999px;background:#edf5f1;color:#376a5b;font-size:12px}.lockbox{background:#fff8ed;border:1px solid #eadcc5;border-radius:14px;padding:16px;color:#6c5337}
.footer{background:#173a57;color:#dce8ef;padding:50px 0 28px}.footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:45px}.footer h4{font-size:13px;letter-spacing:.065em;color:#abc7d9;font-weight:600}.footer p,.footer a{color:#cad9e3;font-size:14px;line-height:1.7}.copyright{margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);font-size:12px;color:#9bb6c7}
.hidden{display:none!important}.gate{margin:45px auto;max-width:720px;text-align:center;background:#fffefa;border:1px solid var(--line);border-radius:22px;padding:35px;box-shadow:var(--shadow)}.gate h2{font-size:27px;font-weight:500}.gate p{color:var(--ink-soft)}
.status-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.status-card{background:#fffefa;border:1px solid var(--line);border-radius:16px;padding:20px}.status-card strong{display:block;font-size:22px;font-weight:500}.status-card span{display:block;margin-top:4px;color:var(--ink-soft);font-size:13px}.status-dot{display:inline-block;width:9px;height:9px;border-radius:50%;background:#5b8b78;margin-right:7px}.version-list{border-left:1px solid #d4dde2;margin-left:10px;padding-left:24px}.version-item{position:relative;padding:0 0 26px}.version-item:before{content:"";position:absolute;left:-30px;top:6px;width:11px;height:11px;border-radius:50%;background:#fffefa;border:3px solid var(--blue)}.version-item h3{margin:0 0 6px;font-size:19px;font-weight:500}.version-item p{margin:0;color:var(--ink-soft)}.checksum{font-family:var(--font-ui);font-size:12px;word-break:break-all;background:#f4f4f1;border:1px solid var(--line);padding:10px;border-radius:10px;color:#4b5e6d}.principle{display:grid;grid-template-columns:54px 1fr;gap:14px;padding:19px 0;border-bottom:1px solid var(--line)}.principle:last-child{border-bottom:0}.principle b{font-size:12px;color:var(--blue);letter-spacing:.06em}.principle h3{margin:0 0 5px;font-size:18px;font-weight:500}.principle p{margin:0;color:var(--ink-soft)}
.type-sample{padding:26px;border:1px solid var(--line);border-radius:18px;background:#fffefa}.type-sample h2{font-size:36px;line-height:1.25;font-weight:500;letter-spacing:-.01em;margin:0 0 14px}.type-sample p{margin:0;color:var(--ink-soft);font-size:17px;line-height:1.82}.type-row{display:grid;grid-template-columns:160px 1fr;gap:20px;padding:17px 0;border-bottom:1px solid var(--line)}.type-row:last-child{border-bottom:0}.type-row b{font-weight:600;color:#506474}.type-row span{line-height:1.75}
@media(max-width:900px){.links{display:none;position:absolute;left:20px;right:20px;top:74px;background:#fffefa;border:1px solid var(--line);border-radius:16px;padding:16px;box-shadow:var(--shadow)}.links.open{display:grid}.mobile-toggle{display:block}.hero-grid,.section-head,.footer-grid,.internal-layout{grid-template-columns:1fr}.hero{padding-top:60px}.hero-mark{max-width:520px}.grid3{grid-template-columns:1fr 1fr}.metrics{grid-template-columns:1fr 1fr}.side{position:static;display:flex;overflow:auto;gap:4px}.side a{white-space:nowrap}.editorial-item{grid-template-columns:110px 1fr}.editorial-item .tag{grid-column:2;text-align:left}.status-grid{grid-template-columns:1fr 1fr}.type-row{grid-template-columns:1fr;gap:5px}}
@media(max-width:600px){.wrap{width:min(100% - 26px,var(--max))}.topbar{display:none}.nav{height:68px}.brand{min-width:0}.brand span{display:none}.hero h1{font-size:38px}.hero-grid{gap:32px}.section{padding:64px 0}.grid3,.metrics,.status-grid{grid-template-columns:1fr}.editorial-item{grid-template-columns:1fr;gap:7px}.editorial-item .tag{grid-column:1}.card{padding:22px}.page-hero{padding-top:44px}.internal-layout{padding-top:24px}}


/* RC23 — Selective Access Experience */
.restricted-nav{position:relative;color:var(--blue-deep)!important;font-weight:500}.restricted-nav .lock-mark{display:inline-block;font-size:8px;transform:rotate(45deg);margin-right:5px;color:#b68756}.restricted-nav:after{content:"Giới hạn";position:absolute;right:0;top:-8px;font-size:8.5px;letter-spacing:.05em;color:#9a744d;background:#fff8ee;border:1px solid #e7d4bd;border-radius:999px;padding:1px 5px;line-height:1.4;transform:translate(32%,-18%)}
.restricted-section{background:linear-gradient(145deg,#f6f1e9 0%,#f7faf9 48%,#edf4f7 100%)}.restricted-shell{display:grid;grid-template-columns:1.04fr .96fr;gap:54px;align-items:center;padding:44px;border:1px solid rgba(210,205,196,.85);border-radius:30px;background:rgba(255,254,250,.78);box-shadow:0 18px 55px rgba(32,55,72,.055)}.restricted-copy h2{font-size:clamp(30px,3vw,45px);font-weight:500;line-height:1.27;letter-spacing:-.008em;margin:0 0 16px}.restricted-copy p{color:var(--ink-soft);font-size:17px;line-height:1.82;margin:0 0 26px}.restricted-preview{position:relative;overflow:hidden;border-radius:22px;background:#fffefa;border:1px solid #ddd9d0;padding:20px;box-shadow:var(--shadow)}.restricted-preview-head{display:flex;justify-content:space-between;gap:12px;padding:3px 3px 15px;border-bottom:1px solid var(--line);font-size:11px;letter-spacing:.06em;color:#5d7180}.mini-lock{color:#9a744d}.restricted-line{display:flex;justify-content:space-between;gap:18px;padding:18px 3px;border-bottom:1px solid #ece9e2}.restricted-line b{font-size:15px;font-weight:500}.restricted-line span{font-size:12.5px;color:var(--ink-soft);text-align:right}.restricted-fade{margin:18px -6px -6px;padding:34px 12px 16px;text-align:center;font-size:12px;color:#7a7167;background:linear-gradient(180deg,rgba(244,239,231,0),#f4efe7 60%)}
.academic-modal[hidden]{display:none}.academic-modal{position:fixed;inset:0;z-index:120;display:grid;place-items:center;padding:22px}.academic-modal-backdrop{position:absolute;inset:0;background:rgba(18,37,52,.54);backdrop-filter:blur(7px)}.academic-modal-card{position:relative;width:min(650px,100%);background:#fffefa;border:1px solid rgba(255,255,255,.7);border-radius:28px;padding:34px;box-shadow:0 30px 90px rgba(15,35,50,.22)}.academic-modal-close{position:absolute;right:17px;top:15px;width:38px;height:38px;border:1px solid var(--line);background:#fffefa;border-radius:50%;font-size:22px;line-height:1;color:#526674;cursor:pointer}.academic-modal-icon{width:54px;height:54px;display:grid;place-items:center;border-radius:18px;background:#f4efe7;color:#966d45;font-size:19px;margin-bottom:18px}.academic-modal-card .eyebrow{margin-bottom:8px}.academic-modal-card h2{font-size:clamp(27px,4vw,37px);line-height:1.3;font-weight:500;letter-spacing:-.008em;margin:0 44px 14px 0}.academic-modal-card p{color:var(--ink-soft);line-height:1.8;margin:0 0 16px}.academic-modal-note{margin:20px 0;padding:15px 17px;border:1px solid #e5dccf;border-radius:15px;background:#fbf6ee;color:#665744;font-size:14px}.academic-modal-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:23px}.academic-modal-foot{margin-top:16px;font-size:12px;color:#82909a}.modal-open{overflow:hidden}
@media(max-width:900px){.restricted-shell{grid-template-columns:1fr}.restricted-nav:after{display:none}}
@media(max-width:600px){.restricted-shell{padding:26px;border-radius:22px}.restricted-line{display:block}.restricted-line span{display:block;text-align:left;margin-top:4px}.academic-modal-card{padding:28px 22px 22px;border-radius:22px}.academic-modal-card h2{margin-right:36px}.academic-modal-actions .btn{width:100%}}


/* RC27 — Public Training Evidence + Progressive Academic Access */
.showcase-nav{color:var(--blue-deep)!important;font-weight:550}.evidence-home{background:#fffefa}.evidence-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.evidence-feature{display:flex;gap:18px;align-items:flex-start;padding:26px;border:1px solid var(--line);border-radius:22px;background:var(--surface);transition:.2s ease}.evidence-feature:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:#cddbe3}.evidence-feature h3{font-weight:550;margin:4px 0 8px;font-size:20px}.evidence-feature p{margin:0;color:var(--ink-soft);font-size:14.5px}.evidence-orb{flex:0 0 42px;width:42px;height:42px;display:grid;place-items:center;border-radius:50%;background:var(--blue-soft);color:var(--blue-deep);font-size:14px}.evidence-hero{background:linear-gradient(145deg,#fbfaf7 0%,#edf5f7 58%,#f7efe5 100%)}.evidence-principle{margin-top:30px;display:grid;grid-template-columns:auto 1fr 60px auto 1fr;gap:12px;align-items:center;padding:18px 20px;border:1px solid #dedbd3;border-radius:18px;background:rgba(255,254,250,.75);font-size:12px}.evidence-principle strong{font-size:11px;letter-spacing:.08em;color:var(--blue-deep)}.evidence-principle span{color:var(--ink-soft)}.evidence-principle i{height:1px;background:#d6d3cc}.showcase-toolbar{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;margin-bottom:28px}.filter-pills{display:flex;flex-wrap:wrap;gap:8px}.filter-pills button{border:1px solid #d5d8d8;background:#fffefa;color:#526775;padding:9px 14px;border-radius:999px;cursor:pointer;font-size:13px}.filter-pills button.active{background:var(--blue-deep);color:#fff;border-color:var(--blue-deep)}.publish-note{max-width:390px;color:#74828c;font-size:12.5px;line-height:1.6}.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.video-card{border:1px solid var(--line);border-radius:22px;overflow:hidden;background:var(--surface);box-shadow:0 10px 32px rgba(31,55,75,.035)}.video-card[hidden]{display:none}.video-poster{position:relative;width:100%;aspect-ratio:16/10;border:0;cursor:pointer;overflow:hidden;background:#dfeaf0;color:#fff;display:grid;place-items:center}.video-poster:before,.video-poster:after{content:"";position:absolute;border-radius:50%}.video-poster:before{width:240px;height:240px;border:1px solid rgba(255,255,255,.22);right:-55px;top:-80px}.video-poster:after{width:150px;height:150px;border:1px solid rgba(255,255,255,.16);left:-45px;bottom:-65px}.poster-stage{background:linear-gradient(145deg,#172f45,#315f7e 58%,#b79a74)}.poster-keyboard{background:linear-gradient(145deg,#355e75,#83a9b9 55%,#e8ddd0)}.poster-score{background:linear-gradient(145deg,#7e7568,#c6b9a8 48%,#f1e9de)}.poster-warm{background:linear-gradient(145deg,#866c50,#caa981 50%,#f5eadb)}.poster-blue{background:linear-gradient(145deg,#153d5a,#4a7894 55%,#9fbfc9)}.poster-night{background:linear-gradient(145deg,#0e2436,#214d69 58%,#8d775f)}.poster-paper{background:linear-gradient(145deg,#657681,#b3c0c4 48%,#f3efe8)}.poster-gold{background:linear-gradient(145deg,#6c553e,#b68c61 52%,#ede0ce)}.poster-studio{background:linear-gradient(145deg,#2b526b,#6f97a8 56%,#d8cabb)}.video-type{position:absolute;left:14px;top:13px;font-size:9.5px;letter-spacing:.1em;background:rgba(14,36,54,.48);border:1px solid rgba(255,255,255,.22);padding:5px 8px;border-radius:999px;z-index:2}.play{position:relative;z-index:2;width:58px;height:58px;display:grid;place-items:center;border-radius:50%;background:rgba(255,255,255,.91);color:var(--blue-deep);font-size:17px;box-shadow:0 8px 30px rgba(0,0,0,.12)}.duration{position:absolute;right:12px;bottom:11px;z-index:2;background:rgba(12,29,42,.62);padding:4px 7px;border-radius:7px;font-size:10px;letter-spacing:.04em}.video-body{padding:20px}.video-meta{font-size:11px;letter-spacing:.04em;color:#81909a;text-transform:uppercase}.video-body h3{font-size:19px;line-height:1.4;font-weight:550;margin:6px 0 9px}.video-body p{color:var(--ink-soft);font-size:14px;line-height:1.7;margin:0 0 13px}.video-tags{display:flex;gap:7px;flex-wrap:wrap}.video-tags span{font-size:10.5px;color:#607784;background:#f1f5f6;border-radius:999px;padding:4px 8px}.showcase-disclaimer{margin-top:30px;padding:20px;border:1px solid #e2ddd4;border-radius:18px;background:#fbf7ef;color:#685f54;font-size:13px}.showcase-disclaimer p{margin:4px 0 0}.journey-card{display:grid;grid-template-columns:1.4fr 1fr auto;align-items:center;gap:28px;padding:28px;border:1px solid #d7dedf;border-radius:24px;background:#fffefa}.journey-card h3{font-weight:550;margin:0 0 5px}.journey-card p{margin:0;color:var(--ink-soft)}.journey-steps{display:flex;align-items:center;gap:10px;color:#657b89;font-size:10.5px;letter-spacing:.05em}.journey-steps i{height:1px;flex:1;background:#cfdade;min-width:28px}.video-demo-modal[hidden]{display:none}.video-demo-modal{position:fixed;inset:0;z-index:150;display:grid;place-items:center;padding:22px}.video-demo-backdrop{position:absolute;inset:0;background:rgba(11,28,41,.68);backdrop-filter:blur(8px)}.video-demo-card{position:relative;width:min(820px,100%);background:#fffefa;border-radius:25px;overflow:hidden;box-shadow:0 35px 100px rgba(0,0,0,.26)}.video-demo-screen{aspect-ratio:16/9;background:linear-gradient(145deg,#17364d,#476f86 55%,#cab89f);display:grid;place-items:center;color:white;text-align:center;padding:32px}.video-demo-screen strong{font-size:28px;font-weight:500}.video-demo-screen span{display:block;margin-top:8px;color:#dce9ef;font-size:13px}.video-demo-info{padding:20px 24px;color:var(--ink-soft)}.video-demo-close{position:absolute;z-index:2;right:14px;top:14px;width:38px;height:38px;border:1px solid rgba(255,255,255,.3);border-radius:50%;background:rgba(16,39,55,.45);color:white;font-size:22px;cursor:pointer}.evidence-timeline{max-width:920px}.evidence-timeline article{display:grid;grid-template-columns:74px 1fr;gap:26px;padding:0 0 54px;position:relative}.evidence-timeline article:not(:last-child):before{content:"";position:absolute;left:35px;top:54px;bottom:0;width:1px;background:#d7d9d7}.timeline-no{width:70px;height:70px;border-radius:50%;display:grid;place-items:center;background:var(--blue-deep);color:#fff;font-size:13px;z-index:1}.timeline-content h2{font-weight:550;margin:5px 0 8px}.timeline-content p{color:var(--ink-soft);max-width:720px}.video-poster.compact{max-width:520px;margin-top:16px;border-radius:18px}.protection-matrix{display:grid;grid-template-columns:1fr 1fr;gap:18px}.protection-matrix>div{padding:30px;border:1px solid #dfd6ca;border-radius:22px;background:rgba(255,254,250,.8)}.protection-matrix h3{font-size:24px;font-weight:550;margin:3px 0 8px}.protection-matrix p{color:var(--ink-soft)}
.access-stair{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.access-tier{position:relative;padding:25px;border:1px solid var(--line);border-radius:20px;background:var(--surface);min-height:170px}.access-tier>span{font-size:10px;letter-spacing:.08em;color:var(--blue)}.access-tier h2{font-weight:550;font-size:22px;margin:6px 0 9px}.access-tier p{color:var(--ink-soft);font-size:14px}.access-tier.locked{filter:saturate(.25);opacity:.62}.access-tier.locked:after{content:"Chưa được cấp quyền ở tầng này";position:absolute;inset:0;display:grid;place-items:center;background:rgba(252,251,248,.86);border-radius:19px;color:#7d6d5b;font-size:12px;font-weight:550}.academic-level-name{color:#a17850}.field small{display:block;margin-top:5px;color:#7b8b94;font-size:11.5px}.level-hidden{display:none!important}
@media(max-width:980px){.video-grid{grid-template-columns:1fr 1fr}.evidence-strip{grid-template-columns:1fr}.evidence-principle{grid-template-columns:1fr}.evidence-principle i{display:none}.access-stair{grid-template-columns:1fr}.showcase-toolbar{display:block}.publish-note{margin-top:12px}.journey-card{grid-template-columns:1fr}.protection-matrix{grid-template-columns:1fr}}
@media(max-width:620px){.video-grid{grid-template-columns:1fr}.evidence-timeline article{grid-template-columns:52px 1fr;gap:14px}.timeline-no{width:50px;height:50px}.evidence-timeline article:not(:last-child):before{left:25px;top:44px}.journey-steps{flex-wrap:wrap}.video-demo-screen strong{font-size:22px}}
/* RC27 — premium public evidence archive */
.archive-hero{background:linear-gradient(140deg,#fcfaf5 0%,#eef5f5 58%,#f5eee4 100%)}
.archive-hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:54px;align-items:center}
.archive-hero h1{font-size:clamp(42px,6vw,76px);line-height:1.05;letter-spacing:-.035em;max-width:760px}
.archive-feature-card{background:rgba(255,254,250,.9);border:1px solid #d9dedc;border-radius:28px;overflow:hidden;box-shadow:0 28px 80px rgba(31,55,75,.09)}
.archive-feature-poster{min-height:260px;position:relative;display:grid;place-items:center;color:#fff}
.archive-feature-poster .play{border:0;cursor:pointer}
.archive-feature-copy{padding:26px 28px 30px}.archive-feature-copy>span{font-size:10px;letter-spacing:.11em;text-transform:uppercase;color:#7e8e97}.archive-feature-copy h2{font-weight:520;font-size:25px;line-height:1.35;margin:8px 0 10px}.archive-feature-copy p{margin:0;color:var(--ink-soft);font-size:14.5px}
.archive-philosophy{padding-top:28px;padding-bottom:28px;background:#fffdf8;border-top:1px solid #ebe6dd;border-bottom:1px solid #ebe6dd}
.evidence-principle.refined{grid-template-columns:1fr 46px 1fr 46px 1fr;margin:0;padding:0;border:0;background:transparent}
.evidence-principle.refined>div{display:grid;gap:5px}.evidence-principle.refined small{font-size:10px;color:#a08e7a}.evidence-principle.refined strong{font-size:11px}.evidence-principle.refined span{font-size:13px;line-height:1.55}
.archive-controls{display:flex;justify-content:space-between;gap:28px;align-items:flex-end;margin:0 0 28px}.archive-search{display:grid;gap:7px;min-width:min(390px,100%)}.archive-search span{font-size:11px;color:#6f808a;letter-spacing:.04em}.archive-search input{width:100%;border:1px solid #d5dcdd;background:#fffefa;border-radius:14px;padding:13px 15px;font:inherit;color:var(--ink);outline:0}.archive-search input:focus{border-color:#9bb5c2;box-shadow:0 0 0 3px rgba(90,130,151,.09)}
.video-grid.premium .video-card{transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}.video-grid.premium .video-card:hover{transform:translateY(-3px);box-shadow:0 22px 55px rgba(31,55,75,.08);border-color:#cbd9de}.video-grid.premium .video-card.feature{grid-column:span 2}.video-grid.premium .video-card.feature .video-poster{aspect-ratio:16/7.5}.archive-empty{padding:42px;text-align:center;border:1px dashed #d8dbd8;border-radius:20px;color:#7b8a91;background:#fffdf9}.journey-card.elevated{box-shadow:0 18px 55px rgba(31,55,75,.055)}
.evidence-record-hero{background:linear-gradient(150deg,#fbfaf7 0%,#eff5f4 58%,#f2e8da 100%)}.record-grid{display:grid;grid-template-columns:1fr auto;gap:50px;align-items:center}.record-stamp{width:190px;height:190px;border-radius:50%;border:1px solid #c9d5d7;display:grid;place-items:center;align-content:center;text-align:center;background:rgba(255,254,250,.72);box-shadow:inset 0 0 0 8px rgba(255,255,255,.35)}.record-stamp span{font-size:9px;letter-spacing:.12em;color:#718894}.record-stamp strong{font-size:64px;font-weight:430;line-height:1;color:var(--blue-deep);margin:5px 0}.record-stamp small{font-size:10px;color:#9a8976}.record-summary{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:20px;overflow:hidden;margin-bottom:52px;background:#fffefa}.record-summary>div{padding:20px 22px;border-right:1px solid var(--line)}.record-summary>div:last-child{border-right:0}.record-summary span{display:block;font-size:10px;letter-spacing:.07em;text-transform:uppercase;color:#87959b;margin-bottom:5px}.record-summary strong{font-weight:520;font-size:14px}.record-timeline{margin-inline:auto}.premium-matrix>div{box-shadow:0 16px 45px rgba(31,55,75,.045)}.clean-list{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:8px}.clean-list li{position:relative;padding-left:19px;color:#5f717b;font-size:14px}.clean-list li:before{content:"·";position:absolute;left:2px;color:#967657;font-size:20px;line-height:.7}.record-cta{margin-top:26px;border-radius:24px;background:#163a51;color:#eef6f8;padding:30px 34px;display:flex;justify-content:space-between;align-items:center;gap:30px}.record-cta span{font-size:10px;letter-spacing:.1em;color:#b7ced9}.record-cta h2{font-weight:470;margin:5px 0 0;font-size:28px}.record-cta .btn{background:#fffefa;color:#173b51;border-color:#fffefa}
@media(max-width:980px){.archive-hero-grid{grid-template-columns:1fr}.archive-feature-card{max-width:720px}.evidence-principle.refined{grid-template-columns:1fr}.evidence-principle.refined i{display:none}.archive-controls{display:block}.archive-controls .filter-pills{margin-top:16px}.video-grid.premium .video-card.feature{grid-column:span 2}.record-summary{grid-template-columns:1fr}.record-summary>div{border-right:0;border-bottom:1px solid var(--line)}.record-summary>div:last-child{border-bottom:0}}
@media(max-width:620px){.archive-hero h1{font-size:42px}.video-grid.premium .video-card.feature{grid-column:span 1}.record-grid{grid-template-columns:1fr}.record-stamp{width:140px;height:140px}.record-stamp strong{font-size:48px}.record-cta{display:block}.record-cta .btn{margin-top:18px}.archive-feature-poster{min-height:210px}}
/* RC27 release readiness */
.readiness-hero{background:linear-gradient(140deg,#fbfaf7 0%,#eef5f4 52%,#f4eee5 100%)}
.readiness-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:start}.readiness-score{border:1px solid #d9dfdc;border-radius:28px;background:rgba(255,254,250,.86);padding:32px;box-shadow:var(--shadow)}
.readiness-score strong{display:block;font-size:64px;line-height:1;font-weight:450;color:var(--blue-deep)}.readiness-score span{display:block;margin-top:10px;color:var(--ink-soft)}
.gate-list{display:grid;gap:12px}.gate-row{display:grid;grid-template-columns:24px 1fr auto;gap:13px;align-items:start;padding:15px 16px;border:1px solid var(--line);border-radius:15px;background:var(--surface)}.gate-row i{width:10px;height:10px;border-radius:50%;background:var(--success);margin-top:8px}.gate-row b{font-weight:550}.gate-row small{color:var(--ink-soft)}.gate-row em{font-style:normal;font-size:11px;letter-spacing:.06em;color:var(--success);padding-top:3px}.gate-row.warning i{background:#a98755}.gate-row.warning em{color:#8c6d42}.release-flow{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.release-flow>div{position:relative;padding:20px 16px;border:1px solid var(--line);border-radius:16px;background:#fffefa}.release-flow span{font-size:10px;letter-spacing:.08em;color:var(--blue)}.release-flow strong{display:block;margin-top:6px;font-weight:530}.release-flow p{margin:7px 0 0;color:var(--ink-soft);font-size:13px}.honesty-note{margin-top:24px;padding:18px 20px;border-left:3px solid #a98755;background:#f7f0e6;color:#665c50;border-radius:0 14px 14px 0}
@media(max-width:900px){.readiness-grid{grid-template-columns:1fr}.release-flow{grid-template-columns:1fr 1fr}}@media(max-width:560px){.release-flow{grid-template-columns:1fr}.readiness-score strong{font-size:52px}}


/* RC27 — pre-VPS handoff */
.readiness-band{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:28px 0}.readiness-block{border:1px solid var(--line);border-radius:18px;padding:24px;background:var(--surface)}.readiness-block h3{margin:0 0 12px;font-weight:500;font-size:20px}.checklist{list-style:none;padding:0;margin:0}.checklist li{padding:9px 0;border-bottom:1px solid #ece9e3;color:var(--ink-soft)}.checklist li:last-child{border-bottom:0}.checklist .pass:before{content:"✓";color:var(--success);margin-right:10px;font-weight:600}.checklist .pending:before{content:"○";color:#a17b48;margin-right:10px}.handoff-note{padding:18px 20px;border-radius:15px;background:#f6f0e6;border:1px solid #e7dac5;color:#654f38}.progress-line{height:8px;background:#e7e4dd;border-radius:99px;overflow:hidden}.progress-line span{display:block;height:100%;width:97%;background:linear-gradient(90deg,#456f8d,#7da39a);border-radius:99px}.deployment-steps{counter-reset:deploy}.deployment-step{position:relative;padding:0 0 26px 54px}.deployment-step:before{counter-increment:deploy;content:counter(deploy);position:absolute;left:0;top:0;width:34px;height:34px;display:grid;place-items:center;border-radius:50%;background:#eef4f6;color:var(--blue-deep);font-weight:600}.deployment-step h3{margin:0 0 6px;font-size:19px;font-weight:500}.deployment-step p{margin:0;color:var(--ink-soft)}
@media(max-width:760px){.readiness-band{grid-template-columns:1fr}}