*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:oklch(11% 0.02 260);--bg2:oklch(15% 0.025 260);--bg3:oklch(19% 0.03 260);
  --orange:#F97316;--blue:oklch(62% 0.24 240);--gold:oklch(78% 0.16 78);
  --text:oklch(97% 0.008 260);--muted:oklch(60% 0.02 260);--border:oklch(25% 0.03 260);
  --ff:'Space Grotesk',sans-serif;--mono:'Space Mono',monospace;
}
body{background:#000;margin:0;overflow:hidden;font-family:var(--ff);}
.deck-wrapper{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;}
.deck{width:1920px;height:1080px;position:relative;transform-origin:center center;}
.slide{position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity .35s ease;background:var(--bg);color:var(--text);font-family:var(--ff);overflow:hidden;}
.slide.active{opacity:1;pointer-events:all;}
/* nav bar */
#nav{position:fixed;bottom:0;left:0;right:0;height:48px;background:rgba(0,0,0,.85);display:flex;align-items:center;justify-content:center;gap:24px;z-index:999;font-family:var(--mono);font-size:18px;color:oklch(45% 0.02 260);}
#nav button{background:none;border:1px solid oklch(30% 0.03 260);color:oklch(60% 0.02 260);padding:6px 20px;cursor:pointer;font-family:var(--mono);font-size:16px;transition:all .2s;}
#nav button:hover{background:var(--orange);border-color:var(--orange);color:#fff;}
/* utilities */
.gridlines{position:absolute;inset:0;background-image:linear-gradient(to right,var(--border) 1px,transparent 1px),linear-gradient(to bottom,var(--border) 1px,transparent 1px);background-size:80px 80px;opacity:.3;pointer-events:none;}
.tag{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:24px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--orange);opacity:.9;}
.tag::before{content:'';display:block;width:24px;height:3px;background:var(--orange);border-radius:2px;}
em{font-style:normal;color:var(--orange);}
/* cover slide */
.s-cover{display:grid;grid-template-columns:1fr 1fr;}
.s-cover .col-left{padding:100px 80px 80px 120px;display:flex;flex-direction:column;justify-content:space-between;position:relative;z-index:2;}
.s-cover .school{font-family:var(--mono);font-size:24px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase;}
.s-cover .main-text{flex:1;display:flex;flex-direction:column;justify-content:center;gap:32px;}
.s-cover .pre-label{font-family:var(--mono);font-size:24px;color:var(--orange);letter-spacing:.15em;text-transform:uppercase;}
.s-cover h1{font-size:88px;font-weight:700;line-height:1;letter-spacing:-.03em;}
.s-cover .questions{display:flex;flex-direction:column;gap:18px;}
.s-cover .question{display:flex;align-items:center;gap:20px;font-size:26px;color:oklch(80% .02 260);}
.s-cover .qnum{font-family:var(--mono);font-size:24px;color:var(--orange);min-width:32px;font-weight:700;}
.s-cover .col-right{position:relative;display:flex;align-items:center;justify-content:center;}
.s-cover .right-bg{position:absolute;inset:0;background:linear-gradient(135deg,oklch(16% .04 240),oklch(12% .02 260));}
.s-cover .logo-box{position:relative;z-index:2;text-align:center;}
.s-cover .obi-letters{font-size:280px;font-weight:700;letter-spacing:-.08em;line-height:1;background:linear-gradient(135deg,var(--blue),var(--orange));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.s-cover .obi-sub{font-family:var(--mono);font-size:24px;color:var(--muted);letter-spacing:.2em;text-transform:uppercase;margin-top:8px;}
.s-cover .divider{position:absolute;top:0;bottom:0;left:50%;width:1px;background:linear-gradient(to bottom,transparent,var(--border) 20%,var(--border) 80%,transparent);}
/* two-col layout */
.two-col{display:grid;grid-template-columns:1fr 1fr;}
.two-col .col-left{padding:100px 80px 80px 120px;display:flex;flex-direction:column;justify-content:center;gap:32px;}
.two-col .col-right{padding:60px;display:flex;flex-direction:column;justify-content:center;gap:16px;}
/* sidebar layout */
.sidebar{display:grid;grid-template-columns:480px 1fr;}
.sidebar .side{padding:100px 60px;display:flex;flex-direction:column;justify-content:flex-end;gap:20px;}
.sidebar .side.orange{background:var(--orange);}
.sidebar .side.orange *{color:#fff!important;}
.sidebar .side h2{font-size:58px;font-weight:700;line-height:1;letter-spacing:-.03em;}
.sidebar .main{padding:80px 100px;display:flex;flex-direction:column;gap:28px;justify-content:center;}
/* stats row */
.stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;}
.stat-card{background:var(--bg2);border:1px solid var(--border);padding:60px 64px;display:flex;flex-direction:column;gap:12px;position:relative;overflow:hidden;}
.stat-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;}
.stat-card:nth-child(1)::before{background:var(--orange);}
.stat-card:nth-child(2)::before{background:var(--blue);}
.stat-card:nth-child(3)::before{background:var(--gold);}
.stat-num{font-size:96px;font-weight:700;line-height:1;letter-spacing:-.04em;}
.stat-card:nth-child(1) .stat-num{color:var(--orange);}
.stat-card:nth-child(2) .stat-num{color:var(--blue);}
.stat-card:nth-child(3) .stat-num{color:var(--gold);}
.stat-unit{font-size:24px;font-weight:400;color:var(--muted);margin-top:4px;}
/* fact grid */
.fact-grid{display:grid;grid-template-columns:1fr 1fr;gap:2px;padding:2px;}
.fact-box{background:var(--bg2);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px;gap:12px;}
.fact-n{font-size:100px;font-weight:700;line-height:1;letter-spacing:-.04em;}
.fact-box:nth-child(1) .fact-n{color:var(--orange);}
.fact-box:nth-child(2) .fact-n{color:var(--blue);}
.fact-box:nth-child(3) .fact-n{color:var(--gold);}
.fact-box:nth-child(4) .fact-n{color:oklch(65% .2 170);}
.fact-l{font-size:24px;color:var(--muted);line-height:1.3;}
/* card row */
.card-row{display:flex;flex-direction:column;gap:20px;}
.card{background:var(--bg2);border:1px solid var(--border);border-left:4px solid transparent;padding:36px 44px;}
.card.orange{border-left-color:var(--orange);}
.card.blue{border-left-color:var(--blue);}
.card.gold{border-left-color:var(--gold);}
.card h3{font-size:32px;font-weight:700;}
.card p{font-size:24px;color:var(--muted);margin-top:8px;line-height:1.5;}
/* phases */
.phases{display:grid;grid-template-columns:1fr 1fr 1fr .7fr;gap:2px;flex:1;}
.phase{background:var(--bg2);border:1px solid var(--border);padding:48px 40px;display:flex;flex-direction:column;gap:20px;position:relative;overflow:hidden;}
.phase-num{font-family:var(--mono);font-size:80px;font-weight:700;line-height:1;color:oklch(20% .03 260);position:absolute;top:-10px;right:20px;}
.phase-badge{display:inline-block;padding:6px 16px;font-family:var(--mono);font-size:24px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;width:fit-content;}
.phase:nth-child(1) .phase-badge{background:oklch(20% .06 240);color:var(--blue);}
.phase:nth-child(2) .phase-badge{background:oklch(20% .05 45);color:var(--orange);}
.phase:nth-child(3) .phase-badge{background:oklch(20% .05 78);color:var(--gold);}
.phase:nth-child(4){background:linear-gradient(135deg,oklch(14% .04 300),oklch(12% .02 260));border-color:oklch(25% .05 300);}
.phase:nth-child(4) .phase-badge{background:oklch(15% .03 260);color:oklch(70% .15 300);}
.phase-title{font-size:32px;font-weight:700;position:relative;z-index:1;}
.phase-where{font-size:24px;color:var(--muted);font-family:var(--mono);position:relative;z-index:1;}
.phase-desc{font-size:24px;color:oklch(70% .02 260);line-height:1.5;position:relative;z-index:1;}
.phase-star{font-size:64px;font-weight:700;color:oklch(70% .15 300);line-height:1;}
/* year plan */
.year-cols{display:grid;grid-template-columns:1fr 1fr 1fr;gap:2px;flex:1;}
.year-col{display:flex;flex-direction:column;gap:2px;}
.year-header{padding:36px 40px;display:flex;flex-direction:column;gap:10px;}
.year-col:nth-child(1) .year-header{background:oklch(17% .04 240);}
.year-col:nth-child(2) .year-header{background:oklch(17% .06 45);}
.year-col:nth-child(3) .year-header{background:oklch(17% .05 78);border:2px solid var(--gold);}
.year-big{font-family:var(--mono);font-size:72px;font-weight:700;line-height:1;letter-spacing:-.04em;}
.year-col:nth-child(1) .year-big{color:var(--blue);}
.year-col:nth-child(2) .year-big{color:var(--orange);}
.year-col:nth-child(3) .year-big{color:var(--gold);}
.year-word{font-size:28px;font-weight:700;}
.year-tag{font-size:24px;color:var(--muted);font-family:var(--mono);}
.year-body{background:var(--bg2);border:1px solid var(--border);padding:36px 40px;flex:1;display:flex;flex-direction:column;gap:16px;}
.year-col:nth-child(3) .year-body{background:oklch(16% .04 78);border:2px solid var(--gold);}
.year-meta{font-family:var(--mono);font-size:24px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);}
.year-col:nth-child(3) .year-meta{color:var(--gold);}
.bullets{display:flex;flex-direction:column;gap:12px;}
.bullet{display:flex;gap:12px;font-size:24px;color:oklch(72% .02 260);line-height:1.4;}
.bullet::before{content:'→';flex-shrink:0;}
.year-col:nth-child(1) .bullet::before{color:var(--blue);}
.year-col:nth-child(2) .bullet::before{color:var(--orange);}
.year-col:nth-child(3) .bullet{color:oklch(84% .04 78);}
.year-col:nth-child(3) .bullet::before{color:var(--gold);}
/* areas grid */
.areas-wrap{display:grid;grid-template-columns:380px 1fr;height:100%;}
.areas-side{background:oklch(14% .04 240);padding:80px 60px;display:flex;flex-direction:column;justify-content:center;gap:24px;}
.areas-side h2{font-size:60px;font-weight:700;line-height:1.05;letter-spacing:-.03em;}
.areas-side p{font-size:28px;color:var(--muted);line-height:1.5;}
.areas-grid{padding:60px 80px;display:grid;grid-template-columns:1fr 1fr 1fr;grid-template-rows:1fr 1fr;gap:16px;}
.area-card{background:var(--bg2);border:1px solid var(--border);border-top:3px solid transparent;padding:36px;display:flex;flex-direction:column;gap:16px;}
.area-icon{width:44px;height:44px;border-radius:2px;display:flex;align-items:center;justify-content:center;}
.area-card h3{font-size:36px;font-weight:700;}
.area-card p{font-size:28px;color:var(--muted);line-height:1.4;}
/* center slide */
.center-slide{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;}
.center-slide .bg-obi{position:absolute;font-size:500px;font-weight:700;color:oklch(14% .025 260);letter-spacing:-.1em;line-height:1;top:50%;left:50%;transform:translate(-50%,-50%);pointer-events:none;white-space:nowrap;z-index:0;font-family:var(--ff);}
.center-slide .content{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;gap:32px;width:100%;max-width:1400px;padding:0 120px;}
.center-slide h2{font-size:110px;font-weight:700;line-height:1;letter-spacing:-.04em;max-width:1100px;}
.center-slide .subtitle{font-size:32px;color:var(--muted);max-width:900px;line-height:1.5;}
.pills{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;}
.pill{padding:12px 28px;border:2px solid var(--border);font-size:24px;font-family:var(--mono);color:oklch(70% .02 260);letter-spacing:.06em;}
.pill.hl{background:var(--orange);border-color:var(--orange);color:#fff;font-weight:700;}
/* ava slide */
.ava-left{padding:100px 80px 80px 120px;display:flex;flex-direction:column;gap:32px;justify-content:center;}
.ava-left h2{font-size:64px;font-weight:700;letter-spacing:-.03em;line-height:1.05;}
.ava-url{font-family:var(--mono);font-size:26px;color:var(--blue);padding:16px 24px;background:oklch(16% .04 240);border:1px solid oklch(25% .06 240);width:fit-content;}
.ava-desc{font-size:24px;color:var(--muted);line-height:1.5;}
.ava-right{padding:80px 80px 80px 60px;display:flex;flex-direction:column;gap:16px;justify-content:center;}
.feature{background:var(--bg2);border:1px solid var(--border);border-left:3px solid var(--blue);padding:28px 32px;display:flex;gap:20px;align-items:center;}
.feat-icon{min-width:44px;color:var(--blue);display:flex;align-items:center;}
.feat-title{font-size:24px;font-weight:700;}
.feat-desc{font-size:22px;color:var(--muted);margin-top:4px;}
/* prof slide */
.prof-wrap{position:absolute;inset:0;display:grid;grid-template-columns:1fr 440px;}
.prof-left{padding:80px 80px 80px 120px;display:flex;flex-direction:column;gap:32px;justify-content:center;}
.prof-name{font-size:64px;font-weight:700;letter-spacing:-.02em;line-height:1.1;}
.prof-role{font-size:30px;color:var(--muted);margin-top:12px;}
.prof-cards{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.prof-card{background:var(--bg2);border:1px solid var(--border);padding:32px 36px;}
.prof-card.orange{border-left:3px solid var(--orange);}
.prof-card.blue{border-left:3px solid var(--blue);}
.prof-label{font-family:var(--mono);font-size:26px;text-transform:uppercase;letter-spacing:.08em;margin-bottom:8px;}
.prof-card.orange .prof-label{color:var(--orange);}
.prof-card.blue .prof-label{color:var(--blue);}
.prof-text{font-size:26px;color:oklch(72% .02 260);line-height:1.55;}
.prof-right{background:oklch(13% .025 260);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:32px 40px;border-left:1px solid var(--border);}
.prof-qr-label{font-family:var(--mono);font-size:22px;color:oklch(40% .02 260);letter-spacing:.12em;text-transform:uppercase;}
.prof-qr-url{font-family:var(--mono);font-size:24px;color:var(--orange);text-align:center;}
/* video slide */
.video-wrap{position:absolute;left:50%;top:0;bottom:0;width:1440px;transform:translateX(-50%);display:flex;flex-direction:column;gap:16px;padding:56px 0 32px;box-sizing:border-box;}
.video-top{display:flex;align-items:center;justify-content:space-between;flex-shrink:0;}
.video-medal{display:flex;align-items:center;gap:12px;font-family:var(--mono);font-size:24px;color:var(--gold);}
.video-box{flex:1;min-height:0;position:relative;background:#000;border:1px solid var(--border);overflow:hidden;}
.play-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.45);cursor:pointer;transition:opacity .2s;}
.play-btn-circle{width:96px;height:96px;border-radius:50%;background:var(--orange);display:flex;align-items:center;justify-content:center;}
.no-video{display:none;position:absolute;inset:0;align-items:center;justify-content:center;flex-direction:column;gap:24px;background:oklch(13% .025 260);}
.video-controls{flex-shrink:0;display:flex;align-items:center;gap:20px;padding:16px 24px;background:oklch(13% .025 260);border:1px solid var(--border);border-top:none;}
.vid-ctrl-btn{background:none;border:none;cursor:pointer;color:var(--text);padding:0;display:flex;align-items:center;}
.progress-bar{flex:1;height:4px;background:var(--border);border-radius:2px;cursor:pointer;position:relative;}
.progress-fill{height:100%;background:var(--orange);border-radius:2px;width:0%;transition:width .1s;}
.time-display{font-family:var(--mono);font-size:24px;color:var(--muted);min-width:90px;text-align:right;}
/* cta slide */
.cta-slide{}
.cta-circle{position:absolute;width:900px;height:900px;border-radius:50%;background:radial-gradient(circle,oklch(18% .06 45/.3),transparent 70%);top:50%;left:50%;transform:translate(-50%,-50%);pointer-events:none;z-index:0;}
.cta-content{position:relative;z-index:2;display:flex;flex-direction:column;align-items:center;gap:24px;width:100%;max-width:1500px;padding:0 100px;}
.cta-q{font-size:46px;font-weight:300;color:var(--muted);line-height:1.3;max-width:1000px;font-style:italic;text-align:center;}
.cta-answer{font-size:72px;font-weight:700;line-height:1;letter-spacing:-.04em;max-width:1200px;text-align:center;}
.cta-tagline{font-size:24px;color:var(--muted);max-width:800px;line-height:1.5;text-align:center;}
.cta-links{display:flex;gap:32px;align-items:center;margin-top:8px;}
.cta-link{font-family:var(--mono);font-size:22px;padding:14px 28px;letter-spacing:.04em;}
.cta-link.primary{background:var(--orange);border:1px solid var(--orange);color:#fff;font-weight:700;}
.cta-link.secondary{color:var(--blue);border:1px solid oklch(25% .06 240);background:oklch(14% .04 240);}
.cta-footer{position:absolute;bottom:32px;font-family:var(--mono);font-size:20px;color:oklch(35% .02 260);letter-spacing:.08em;text-transform:uppercase;z-index:2;}
/* slide headers */
.slide-header{padding:80px 120px 0;display:flex;flex-direction:column;gap:12px;}
.slide-header h2{font-size:64px;font-weight:700;letter-spacing:-.02em;}
.slide-header .sub{font-size:24px;color:var(--muted);}
/* ano-rows */
.ano-rows{display:flex;flex-direction:column;gap:28px;}
.ano-row{background:var(--bg2);border:1px solid var(--border);border-left:4px solid var(--orange);padding:36px 44px;display:flex;align-items:center;gap:48px;}
.ano-year{font-family:var(--mono);font-size:48px;font-weight:700;color:var(--orange);min-width:120px;letter-spacing:-.03em;}
.ano-name{font-size:28px;font-weight:700;}
.ano-desc{font-size:24px;color:var(--muted);margin-top:6px;line-height:1.4;}
.ano-alert{background:var(--bg3);border:1px solid var(--border);padding:20px 32px;font-size:24px;color:oklch(65% .02 260);font-family:var(--mono);text-align:center;}
/* lang box */
.lang-box{background:oklch(18% .06 45);border:1px solid oklch(25% .06 45);padding:28px 32px;display:flex;flex-direction:column;gap:8px;}
.lang-name{font-family:var(--mono);font-size:36px;font-weight:700;color:var(--orange);letter-spacing:-.02em;}
.lang-desc{font-size:24px;color:var(--muted);line-height:1.4;}
/* prog left panel */
.prog-left{background:oklch(14% .04 45);padding:80px 60px;display:flex;flex-direction:column;gap:32px;justify-content:center;}
.prog-left h2{font-size:48px;font-weight:700;line-height:1;letter-spacing:-.03em;}