:root {
--bg:#0d0f14;--surface:#141720;--surface2:#1c2030;--border:#252a3a;
--accent:#f5c842;--accent2:#e8553e;--accent4:#a8edba;
--text:#e8eaf0;--text-muted:#7a8099;--text-dim:#4a5168;
--mat:#4fc3f7;--lec:#f9a8d4;--cien:#a8edba;--soc:#fbbf24;--ing:#c4b5fd;
--radius:14px;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{background:var(--bg);color:var(--text);font-family:'DM Sans',sans-serif;overflow-x:hidden;line-height:1.6;}
body::before{content:'';position:fixed;inset:0;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");pointer-events:none;z-index:0;}

/* HERO */
.hero{position:relative;min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:60px 24px;overflow:hidden;}
.hero-glow{position:absolute;width:700px;height:700px;background:radial-gradient(ellipse,rgba(245,200,66,.12) 0%,transparent 70%);top:50%;left:50%;transform:translate(-50%,-50%);pointer-events:none;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(245,200,66,.1);border:1px solid rgba(245,200,66,.3);color:var(--accent);padding:6px 16px;border-radius:100px;font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin-bottom:28px;animation:fadeUp .6s ease both;}
.hero h1{font-family:'Playfair Display',serif;font-size:clamp(3rem,8vw,7rem);font-weight:900;line-height:1;letter-spacing:-.02em;animation:fadeUp .7s .1s ease both;max-width:900px;}
.hero h1 .yl{color:var(--accent);} .hero h1 .rd{color:var(--accent2);}
.hero-sub{font-size:1.15rem;color:var(--text-muted);max-width:560px;margin-top:20px;animation:fadeUp .7s .2s ease both;}
.hero-stats{display:flex;gap:32px;flex-wrap:wrap;justify-content:center;margin-top:48px;animation:fadeUp .7s .3s ease both;}
.stat-num{font-family:'Playfair Display',serif;font-size:2.4rem;font-weight:700;color:var(--accent);line-height:1;}
.stat-label{font-size:12px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;margin-top:4px;}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin-top:40px;animation:fadeUp .7s .4s ease both;}
.btn-primary{background:var(--accent);color:#0d0f14;padding:14px 32px;border-radius:100px;font-weight:700;font-size:15px;border:none;cursor:pointer;transition:transform .2s,box-shadow .2s;text-decoration:none;display:inline-block;}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(245,200,66,.35);}
.btn-ghost{background:transparent;color:var(--text);padding:14px 32px;border-radius:100px;font-weight:600;font-size:15px;border:1px solid var(--border);cursor:pointer;transition:border-color .2s,background .2s;text-decoration:none;display:inline-block;}
.btn-ghost:hover{border-color:var(--text-muted);background:var(--surface);}

/* NAV */
nav{position:sticky;top:0;z-index:100;background:rgba(13,15,20,.9);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);padding:0 24px;display:flex;overflow-x:auto;}
nav a{padding:16px 18px;color:var(--text-muted);font-size:13px;font-weight:500;text-decoration:none;border-bottom:2px solid transparent;white-space:nowrap;transition:color .2s,border-color .2s;}
nav a:hover,nav a.active{color:var(--accent);border-bottom-color:var(--accent);}

/* LAYOUT */
section{max-width:1100px;margin:0 auto;padding:80px 24px;}
.divider{height:1px;background:var(--border);margin:0 24px;}
.sl{display:flex;align-items:center;gap:10px;font-family:'DM Mono',monospace;font-size:12px;color:var(--text-dim);text-transform:uppercase;letter-spacing:.1em;margin-bottom:12px;}
.sl::after{content:'';flex:1;height:1px;background:var(--border);max-width:80px;}
.stitle{font-family:'Playfair Display',serif;font-size:clamp(2rem,4vw,3rem);font-weight:700;line-height:1.15;margin-bottom:12px;}
.sdesc{color:var(--text-muted);max-width:560px;margin-bottom:48px;}

/* CARDS */
.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;}
.info-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;}
.info-card h3{font-weight:700;margin-bottom:8px;}
.info-card p{color:var(--text-muted);font-size:14px;}
.info-card p strong{color:var(--text);}
.notebox{background:rgba(232,85,62,.08);border:1px solid rgba(232,85,62,.25);border-radius:10px;padding:16px 20px;margin-bottom:32px;display:flex;gap:12px;font-size:13px;color:var(--text-muted);}
.notebox strong{color:var(--accent2);}

/* TABLE */
.stable{width:100%;border-collapse:collapse;font-size:14px;}
.stable thead tr{background:var(--bg);}
.stable th{padding:12px 20px;text-align:left;color:var(--text-muted);font-weight:600;font-family:'DM Mono',monospace;font-size:11px;text-transform:uppercase;letter-spacing:.06em;}
.stable th.center{text-align:center;}
.stable td{padding:14px 20px;}
.stable td.center{text-align:center;font-family:'DM Mono',monospace;}
.stable td.muted{color:var(--text-muted);}
.stable tr{border-top:1px solid var(--border);}

/* TABS */
.tab-bar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:28px;}
.tab-btn{padding:10px 20px;border-radius:100px;border:1px solid var(--border);background:transparent;color:var(--text-muted);font-size:13px;font-weight:600;cursor:pointer;transition:all .2s;font-family:'DM Sans',sans-serif;}
.tab-btn[data-t="lc"].active{background:var(--lec);color:#0d0f14;border-color:var(--lec);}
.tab-btn[data-t="mat"].active{background:var(--mat);color:#0d0f14;border-color:var(--mat);}
.tab-btn[data-t="cn"].active{background:var(--cien);color:#0d0f14;border-color:var(--cien);}
.tab-btn[data-t="soc"].active{background:var(--soc);color:#0d0f14;border-color:var(--soc);}
.tab-btn[data-t="ing"].active{background:var(--ing);color:#0d0f14;border-color:var(--ing);}
.tab-panel{display:none;}
.tab-panel.active{display:block;}

/* MATERIA OVERVIEW */
.mov{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px 28px;margin-bottom:24px;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;}
.mov h4{font-family:'DM Mono',monospace;font-size:11px;color:var(--text-dim);text-transform:uppercase;letter-spacing:.08em;margin-bottom:5px;}
.mov p{font-size:14px;}
.topics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:10px;margin-bottom:32px;}
.topic-row{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:14px 16px;}
.topic-title{font-weight:700;font-size:14px;margin-bottom:4px;}
.topic-desc{color:var(--text-muted);font-size:13px;}

/* QUIZ */
.quiz-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-bottom:20px;}
.quiz-head h3{font-family:'Playfair Display',serif;font-size:1.3rem;font-weight:700;}
.btn-sm{padding:8px 16px;border-radius:100px;border:1px solid var(--border);background:transparent;color:var(--text-muted);font-size:12px;font-weight:600;cursor:pointer;transition:all .2s;font-family:'DM Sans',sans-serif;}
.btn-sm:hover{border-color:var(--accent);color:var(--accent);}
.btn-sm.danger{color:var(--accent2);border-color:rgba(232,85,62,.3);}

.scorebar{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px 24px;margin-bottom:20px;display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.sc-label{font-family:'DM Mono',monospace;font-size:11px;color:var(--text-dim);text-transform:uppercase;letter-spacing:.08em;}
.sc-num{font-family:'Playfair Display',serif;font-size:2rem;font-weight:700;color:var(--accent);}
.sc-track{flex:1;min-width:120px;background:var(--bg);border-radius:100px;height:8px;overflow:hidden;}
.sc-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent2));border-radius:100px;transition:width .5s;}
.sc-detail{color:var(--text-muted);font-size:13px;}

.qcard{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:18px;overflow:hidden;transition:border-color .2s;}
.qcard.ok{border-color:var(--accent4);}
.qcard.bad{border-color:#f87171;}
.qmeta{padding:13px 20px 0;display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.qnum{font-family:'DM Mono',monospace;font-size:11px;color:var(--text-dim);letter-spacing:.06em;}
.qcomp{font-size:11px;padding:3px 10px;border-radius:100px;font-weight:600;}
.qbody{padding:14px 20px;font-size:15px;line-height:1.65;}
.qctx{background:var(--bg);border-left:3px solid var(--border);padding:12px 16px;margin-bottom:12px;border-radius:0 8px 8px 0;font-size:13px;color:var(--text-muted);font-style:italic;line-height:1.75;white-space:pre-line;}
.qstem{font-weight:600;}

.opts{padding:0 20px 20px;display:flex;flex-direction:column;gap:8px;}
.opt{display:flex;align-items:flex-start;gap:12px;padding:12px 14px;border:1px solid var(--border);border-radius:10px;cursor:pointer;transition:all .2s;font-size:14px;}
.opt:hover:not(.dis){border-color:var(--text-dim);background:rgba(255,255,255,.02);}
.opt.sel{border-color:var(--accent);background:rgba(245,200,66,.06);}
.opt.right{border-color:var(--accent4);background:rgba(168,237,186,.08);color:var(--accent4);}
.opt.wrong{border-color:#f87171;background:rgba(248,113,113,.08);color:#f87171;}
.opt.dis{cursor:default;}
.oletter{width:26px;height:26px;border-radius:50%;border:1.5px solid currentColor;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex-shrink:0;margin-top:1px;}
.otext{flex:1;line-height:1.55;}
.oicon{margin-left:auto;font-size:14px;flex-shrink:0;}

.fbbox{margin:0 20px 18px;padding:12px 16px;border-radius:10px;font-size:13px;display:none;line-height:1.6;}
.fbbox.show{display:block;}
.fbbox.okfb{background:rgba(168,237,186,.08);border:1px solid rgba(168,237,186,.2);color:var(--accent4);}
.fbbox.badfb{background:rgba(248,113,113,.08);border:1px solid rgba(248,113,113,.2);color:#f87171;}
.fbbox strong{display:block;margin-bottom:5px;font-size:14px;}
.fbbox .expl{color:var(--text-muted);margin-top:4px;}

/* GLOBAL SCORE PANEL */
.gsp{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px;margin-bottom:40px;}
.gsp h3{font-family:'Playfair Display',serif;font-size:1.3rem;font-weight:700;margin-bottom:20px;}
.gsp-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;}
.gsp-card{background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:14px;text-align:center;}
.gsp-subj{font-family:'DM Mono',monospace;font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.06em;margin-bottom:6px;}
.gsp-pct{font-family:'Playfair Display',serif;font-size:1.8rem;font-weight:700;}
.gsp-bar{height:4px;border-radius:100px;background:var(--border);margin-top:8px;overflow:hidden;}
.gsp-fill{height:100%;border-radius:100px;transition:width .5s;}
.gsp-total{text-align:center;margin-top:20px;padding-top:20px;border-top:1px solid var(--border);}
.gsp-tlabel{color:var(--text-muted);font-size:13px;margin-bottom:4px;}
.gsp-tnum{font-family:'Playfair Display',serif;font-size:3rem;font-weight:900;color:var(--accent);}

/* PLAN */
.plan-wrap{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;}
.plan-head{padding:24px 28px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px;}
.plan-head h3{font-family:'Playfair Display',serif;font-size:1.3rem;font-weight:700;}
.plan-btns{display:flex;gap:8px;}
.plan-btn{padding:8px 18px;border-radius:100px;border:1px solid var(--border);background:transparent;color:var(--text-muted);font-size:13px;font-weight:500;cursor:pointer;transition:all .2s;font-family:'DM Sans',sans-serif;}
.plan-btn.active{background:var(--accent);color:var(--bg);border-color:var(--accent);}
.plan-body{padding:28px;display:none;}
.plan-body.active{display:block;}
.mblock{margin-bottom:28px;}
.mtitle{font-family:'Playfair Display',serif;font-size:1.05rem;font-weight:700;margin-bottom:12px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.mphase{font-size:11px;font-family:'DM Mono',monospace;color:var(--accent);background:rgba(245,200,66,.1);padding:3px 10px;border-radius:100px;letter-spacing:.08em;}
.wgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:10px;}
.wcard{background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:14px;}
.wnum{font-family:'DM Mono',monospace;font-size:11px;color:var(--text-dim);margin-bottom:5px;letter-spacing:.06em;}
.wfocus{font-weight:600;margin-bottom:4px;}
.whours{color:var(--text-muted);font-size:13px;}

/* TIPS */
.tips-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px;}
.tip{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:26px;position:relative;overflow:hidden;transition:transform .2s;}
.tip:hover{transform:translateY(-3px);}
.tnum{font-family:'Playfair Display',serif;font-size:5rem;font-weight:900;color:var(--border);position:absolute;top:8px;right:14px;pointer-events:none;}
.ticon{font-size:1.7rem;margin-bottom:12px;}
.ttitle{font-weight:700;margin-bottom:6px;}
.ttext{color:var(--text-muted);font-size:14px;}

/* TRACKER */
.tgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(165px,1fr));gap:12px;margin-bottom:16px;}
.tcard{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;text-align:center;cursor:pointer;transition:all .2s;}
.tcard.done{border-color:var(--accent4);background:rgba(168,237,186,.05);}
.tcheck{width:30px;height:30px;border:2px solid var(--border);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 9px;font-size:13px;transition:all .2s;}
.tcard.done .tcheck{border-color:var(--accent4);background:var(--accent4);color:#0d0f14;}
.tlabel{font-size:13px;font-weight:600;}
.tsub{font-size:12px;color:var(--text-muted);margin-top:2px;}
.pbar-wrap{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px 24px;}
.pbar-top{display:flex;justify-content:space-between;font-size:13px;color:var(--text-muted);margin-bottom:10px;}
.ptrack{background:var(--bg);border-radius:100px;height:10px;overflow:hidden;}
.pfill{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent2));border-radius:100px;transition:width .5s;}

/* RECURSOS */
.rlist{display:flex;flex-direction:column;gap:10px;}
.ritem{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:16px 20px;display:flex;align-items:center;gap:16px;transition:border-color .2s,transform .2s;}
.ritem:hover{border-color:var(--text-dim);transform:translateX(4px);}
.ricon{width:42px;height:42px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.3rem;flex-shrink:0;}
.rname{font-weight:600;font-size:14px;}
.rdesc{color:var(--text-muted);font-size:13px;margin-top:2px;}
.rtag{margin-left:auto;font-size:11px;font-weight:600;padding:4px 12px;border-radius:100px;background:rgba(168,237,186,.1);color:var(--accent4);border:1px solid rgba(168,237,186,.2);white-space:nowrap;}

@keyframes fadeUp{from{opacity:0;transform:translateY(22px);}to{opacity:1;transform:translateY(0);}}
footer{text-align:center;padding:36px 24px;color:var(--text-dim);font-size:13px;border-top:1px solid var(--border);}
@media(max-width:600px){section{padding:56px 16px;}.plan-head,.plan-body{padding:18px;}}