/* Atlas Arc - Dracula flavored TypeScript roadmap */
:root {
  --drac-bg:#282A36;
  --drac-bg-darker:#1e1f29;
  --drac-bg-card:#343746;
  --drac-bg-card2:#3d3f54;
  --drac-current:#44475a;
  --drac-fg:#F8F8F2;
  --drac-muted:#C5C6C8;
  --drac-comment:#6272A4;
  --drac-cyan:#8BE9FD;
  --drac-green:#50FA7B;
  --drac-orange:#FFB86C;
  --drac-pink:#FF79C6;
  --drac-purple:#BD93F9;
  --drac-red:#FF5555;
  --drac-yellow:#F1FA8C;
  --drac-blue:#6ea8ff;
  --bg:var(--drac-bg);
  --surface:var(--drac-bg-card);
  --surface-2:var(--drac-bg-card2);
  --border:var(--drac-current);
  --text:var(--drac-fg);
  --muted:var(--drac-muted);
  --faint:var(--drac-comment);
  --shadow:0 20px 60px rgba(0,0,0,.25);
  --radius:20px;
  --radius-sm:12px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --body: Inter, ui-rounded, "Avenir Next", "Segoe UI", system-ui, sans-serif;
}
[data-theme="light"] {
  --bg:#f5f4ff;
  --surface:#ffffff;
  --surface-2:#eeecff;
  --border:#d5d0f4;
  --text:#202335;
  --muted:#4f5577;
  --faint:#747ca8;
  --shadow:0 15px 40px rgba(80,70,140,.15);
}
*{box-sizing:border-box} html{scroll-behavior:smooth;scroll-padding-top:90px} body{margin:0;background:var(--bg);color:var(--text);font-family:var(--body);line-height:1.6;overflow-x:hidden} a{color:var(--drac-cyan);text-decoration:none} a:hover{color:var(--drac-pink)} img,svg{display:block;max-width:100%} button,input{font:inherit} .container{max-width:1180px;margin:0 auto;padding:0 24px}
.site-header{position:sticky;top:0;z-index:30;background:color-mix(in srgb, var(--bg) 78%, transparent);backdrop-filter:blur(16px);border-bottom:1px solid var(--border)} .header-inner{max-width:1320px;margin:0 auto;padding:14px 24px;display:flex;gap:20px;align-items:center}.logo-area{display:flex;align-items:center;gap:14px;color:inherit}.logo-mascot,.footer-mascot{width:58px;height:58px;filter:drop-shadow(0 0 22px rgba(110,168,255,.22))}.logo-title{display:block;font-weight:900;font-size:1.25rem;color:var(--drac-blue)}.logo-sub{display:block;font-size:.85rem;color:var(--drac-purple);font-weight:700}.header-nav{margin-left:auto;display:flex;flex-wrap:wrap;gap:8px}.nav-link,.theme-toggle,.phase-tab,.btn-secondary{border:1px solid transparent;padding:10px 14px;border-radius:999px;color:var(--muted);background:transparent;transition:.18s ease}.nav-link:hover,.theme-toggle:hover,.btn-secondary:hover{background:var(--surface);border-color:var(--border);color:var(--text)}.theme-toggle{min-width:42px}
.hero{position:relative;min-height:82vh;display:grid;grid-template-columns:1.2fr .8fr;align-items:center;gap:32px;padding:96px 32px;background:radial-gradient(circle at 10% 20%, rgba(110,168,255,.16), transparent 30%),radial-gradient(circle at 80% 20%, rgba(255,121,198,.12), transparent 25%),radial-gradient(circle at 50% 80%, rgba(139,233,253,.08), transparent 28%),var(--drac-bg-darker);overflow:hidden}.hero-bg-stars::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 10% 15%, rgba(255,255,255,.45) 0 1px, transparent 1px),radial-gradient(circle at 25% 65%, rgba(255,255,255,.35) 0 1px, transparent 1px),radial-gradient(circle at 72% 25%, rgba(139,233,253,.55) 0 2px, transparent 2px),radial-gradient(circle at 84% 60%, rgba(255,184,108,.45) 0 2px, transparent 2px),radial-gradient(circle at 45% 35%, rgba(189,147,249,.4) 0 1px, transparent 1px),radial-gradient(circle at 55% 78%, rgba(80,250,123,.35) 0 1px, transparent 1px)}.hero-content,.hero-art{position:relative;z-index:1}.hero-content{max-width:780px;justify-self:end}.hero-badge{display:inline-block;padding:10px 18px;border-radius:999px;background:rgba(110,168,255,.14);border:1px solid rgba(110,168,255,.35);color:#a8c8ff;font-weight:800;font-size:.95rem;margin-bottom:18px}.hero-title{font-size:clamp(2.4rem,6vw,5.2rem);line-height:1.02;margin:0 0 18px;font-weight:950;letter-spacing:-.04em}.accent-text{background:linear-gradient(135deg,var(--drac-blue),var(--drac-cyan),var(--drac-pink));-webkit-background-clip:text;background-clip:text;color:transparent}.hero-sub{font-size:1.14rem;color:var(--muted);max-width:62ch;margin-bottom:26px}.hero-stats{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:24px}.stat-card{min-width:118px;padding:16px;border:1px solid var(--border);background:rgba(68,71,90,.5);border-radius:18px;text-align:center;box-shadow:var(--shadow)}.stat-number{display:block;font-size:1.65rem;font-weight:900;color:var(--drac-yellow)}.stat-label{display:block;font-size:.9rem;color:var(--muted);font-weight:700}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.btn-primary,.btn-secondary{display:inline-flex;align-items:center;justify-content:center}.btn-primary{padding:14px 18px;border-radius:999px;background:linear-gradient(135deg,var(--drac-blue),var(--drac-purple));color:white;font-weight:800;box-shadow:0 14px 35px rgba(110,168,255,.25)}.btn-primary:hover{color:white;transform:translateY(-1px)}.btn-secondary{border-color:var(--border);background:rgba(68,71,90,.35)}.hero-art{justify-self:start;position:relative}.hero-art img{width:min(420px,90vw);height:auto;animation:floaty 6s ease-in-out infinite}.speech-bubble{position:absolute;top:6%;right:-6%;background:var(--surface);border:1px solid var(--border);padding:14px 18px;border-radius:18px;box-shadow:var(--shadow);font-family:var(--mono);color:var(--drac-yellow);font-size:.95rem}.speech-bubble::after{content:"";position:absolute;left:28px;bottom:-10px;width:18px;height:18px;background:var(--surface);border-right:1px solid var(--border);border-bottom:1px solid var(--border);transform:rotate(45deg)}.floating-icons span{position:absolute;font-size:1.65rem;opacity:.9;animation:floaty 7s ease-in-out infinite}.fi-1{left:8%;top:18%}.fi-2{left:12%;bottom:14%;animation-delay:.7s}.fi-3{left:48%;top:12%;animation-delay:1.3s}.fi-4{right:14%;top:15%;animation-delay:2s}.fi-5{right:10%;bottom:16%;animation-delay:2.6s}.fi-6{right:42%;bottom:10%;animation-delay:1s}@keyframes floaty{50%{transform:translateY(-12px)}}
.section-title{text-align:center;font-size:clamp(1.9rem,4vw,3rem);margin:0 0 10px;font-weight:900}.section-sub{text-align:center;color:var(--muted);max-width:70ch;margin:0 auto 32px}.phases-section,.days-section,.resources-section{padding:84px 0}.phase-timeline{display:grid;gap:18px}.phase-card,.resource-card,.overview-card,.setup-box,.skill-chart-container,.diagram-container,.day-card,.phase-banner,.video-card{background:linear-gradient(180deg, color-mix(in srgb, var(--surface) 94%, white 6%), var(--surface));border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.phase-card{display:grid;grid-template-columns:88px 1fr;gap:20px;padding:24px}.phase-icon{width:64px;height:64px;border-radius:20px;display:grid;place-items:center;font-size:1.9rem;background:rgba(255,255,255,.05);border:1px solid var(--border)}.phase-days{font-size:.86rem;text-transform:uppercase;letter-spacing:.12em;color:var(--drac-cyan);font-weight:800}.phase-name{margin:.25rem 0;font-size:1.35rem}.phase-desc{color:var(--muted);margin:0 0 10px}.phase-tags,.day-tags{display:flex;flex-wrap:wrap;gap:8px}.tag,.day-tag{display:inline-flex;padding:7px 10px;border-radius:999px;background:rgba(189,147,249,.12);border:1px solid rgba(189,147,249,.24);font-size:.8rem;font-weight:800;color:#d7c1ff}.overview-strip{padding-bottom:22px}.overview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.overview-card{padding:24px}.overview-card h3{margin-top:0;margin-bottom:8px}.overview-card p{color:var(--muted);margin:0}.skill-chart-container,.diagram-container{padding:26px;margin-top:24px}.chart-title{margin:0 0 18px;font-size:1.3rem}.skill-bars{display:grid;gap:14px}.skill-row{display:grid;grid-template-columns:220px 1fr 52px;gap:14px;align-items:center}.skill-name,.skill-pct{font-weight:800}.skill-pct{color:var(--muted)}.skill-bar-track{height:16px;background:rgba(68,71,90,.55);border-radius:999px;overflow:hidden;border:1px solid var(--border)}.skill-bar-fill{height:100%;width:var(--w);background:linear-gradient(90deg,var(--drac-blue),var(--drac-purple));border-radius:999px}.skill-bar-fill.cyan{background:linear-gradient(90deg,var(--drac-cyan),var(--drac-blue))}.skill-bar-fill.pink{background:linear-gradient(90deg,var(--drac-pink),var(--drac-purple))}.skill-bar-fill.orange{background:linear-gradient(90deg,var(--drac-orange),#ff8b6a)}.skill-bar-fill.green{background:linear-gradient(90deg,var(--drac-green),var(--drac-cyan))}.skill-bar-fill.yellow{background:linear-gradient(90deg,var(--drac-yellow),var(--drac-orange))}.ts-diagram{display:grid;grid-template-columns:1fr auto 1fr;gap:16px;align-items:center}.diagram-column{padding:20px;border-radius:18px;border:1px solid var(--border)}.diagram-column h4{margin-top:0;margin-bottom:8px}.diagram-column p{margin-top:0;color:var(--muted)}.diagram-chip{padding:10px 12px;border-radius:999px;background:rgba(68,71,90,.5);font-family:var(--mono);font-size:.88rem;margin-top:10px}.nominal{background:rgba(255,184,108,.08)}.structural{background:rgba(110,168,255,.08)}.diagram-arrow{font-size:2rem;font-weight:900;color:var(--drac-pink)}.controls-row{display:flex;gap:16px;justify-content:space-between;align-items:center;flex-wrap:wrap;margin-bottom:20px}.phase-tabs{display:flex;gap:10px;flex-wrap:wrap}.phase-tab{border-color:var(--border);background:rgba(68,71,90,.35)}.phase-tab.active{background:linear-gradient(135deg,rgba(110,168,255,.26),rgba(189,147,249,.22));color:var(--text);border-color:rgba(110,168,255,.45)}.search-box{display:flex;align-items:center;gap:10px;padding:10px 14px;border:1px solid var(--border);border-radius:999px;background:var(--surface)}.search-box input{border:none;outline:none;background:transparent;min-width:260px;color:var(--text)}.progress-tracker{margin-bottom:18px}.progress-info{font-weight:800;margin-bottom:10px}.progress-bar-outer{height:16px;background:rgba(68,71,90,.55);border-radius:999px;border:1px solid var(--border);overflow:hidden}.progress-bar-inner{height:100%;background:linear-gradient(90deg,var(--drac-blue),var(--drac-cyan),var(--drac-pink));transition:width .2s ease}.jump-grid{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px}.jump-grid a{padding:8px 12px;border-radius:999px;background:rgba(68,71,90,.35);border:1px solid var(--border);font-weight:700;color:var(--muted)}.jump-grid a:hover{color:var(--text)}.phase-banner{padding:14px 18px;font-weight:900;display:flex;gap:10px;align-items:center;margin:18px 0 14px;background:linear-gradient(135deg,rgba(110,168,255,.1),rgba(189,147,249,.12))}.days-list{display:grid;gap:16px}.day-card{overflow:hidden;transition:.18s ease}.day-card.completed{outline:1px solid rgba(80,250,123,.55)}.day-header{display:grid;grid-template-columns:auto auto auto 1.2fr auto auto;gap:14px;align-items:center;padding:18px 20px;cursor:pointer}.day-title{font-size:1.12rem;font-weight:900}.day-subtitle{font-size:.93rem;color:var(--muted)}.day-num,.day-check,.day-phase-dot,.day-expand-icon{flex-shrink:0}.day-num{padding:8px 12px;border-radius:999px;background:rgba(110,168,255,.14);color:#b9d1ff;font-weight:900;font-size:.9rem}.day-check{width:30px;height:30px;border-radius:999px;border:1px solid var(--border);display:grid;place-items:center;font-weight:900;color:var(--bg);background:rgba(68,71,90,.45)}.day-check.done{background:var(--drac-green);border-color:transparent}.day-phase-dot{width:12px;height:12px;border-radius:999px}.phase-dot-1{background:var(--drac-blue)}.phase-dot-2{background:var(--drac-purple)}.phase-dot-3{background:var(--drac-cyan)}.phase-dot-4{background:var(--drac-orange)}.phase-dot-5{background:var(--drac-pink)}.day-expand-icon{font-size:1.6rem;color:var(--muted);transition:transform .18s ease}.day-card.open .day-expand-icon{transform:rotate(90deg)}.day-body{display:none;padding:0 20px 22px}.day-card.open .day-body{display:block}.day-body-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;margin:4px 0 18px}.db-section{padding:18px;border-radius:18px;background:rgba(68,71,90,.28);border:1px solid var(--border)}.db-section h4{margin:0 0 12px}.db-section ul{margin:0;padding-left:18px}.db-section li+li{margin-top:10px}.db-links{display:grid;gap:10px}.db-link{display:flex;gap:10px;align-items:flex-start;padding:11px 12px;border-radius:14px;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.04);color:var(--text)}.db-link:hover{border-color:var(--border)}.day-actions{display:flex;justify-content:flex-end;margin:4px 0 18px}.lesson-link-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:999px;background:linear-gradient(135deg,rgba(110,168,255,.22),rgba(189,147,249,.22));border:1px solid rgba(110,168,255,.35);color:var(--text);font-weight:800}.lesson-link-btn:hover{color:var(--text);border-color:rgba(139,233,253,.55);transform:translateY(-1px)}.day-practical{padding:18px;border-radius:18px;background:rgba(80,250,123,.08);border:1px solid rgba(80,250,123,.18);margin-bottom:18px}.day-practical h4{margin:0 0 8px;color:var(--drac-green)}.day-practical p{margin:0;color:var(--text)}.day-example{border:1px solid var(--border);border-radius:18px;overflow:hidden;margin-bottom:18px;background:#1f2230}.day-example-header{display:flex;align-items:center;padding:10px 14px;background:#161823;color:#d7dbef;font-family:var(--mono);font-size:.86rem}.ex-dot{width:11px;height:11px;border-radius:999px;display:inline-block;margin-right:7px}.ex-red{background:#ff5f57}.ex-yellow{background:#febc2e}.ex-green{background:#28c840}.day-example pre{margin:0;padding:16px;overflow:auto;font:.9rem/1.6 var(--mono);color:#f8f8f2}.kw{color:#ff79c6}.ty{color:#8be9fd}.st{color:#f1fa8c}.nu{color:#bd93f9}.cm{color:#6272a4}.fn{color:#50fa7b}.resources-grid,.video-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.resource-card{padding:22px}.rc-icon{font-size:1.7rem;margin-bottom:12px}.resource-card h3{margin:.2rem 0}.resource-card p{color:var(--muted)}.rc-link{font-weight:800}.video-card{padding:18px;display:grid;grid-template-columns:48px 1fr;gap:14px;align-items:start;color:var(--text)}.video-card span{font-size:1.4rem}.video-card h3{margin:0 0 6px;font-size:1rem}.video-card p{margin:0;color:var(--muted)}.setup-box{margin-top:28px;padding:26px}.setup-header{display:flex;align-items:center;gap:12px;margin-bottom:18px}.setup-icon{font-size:1.7rem}.setup-content{display:grid;gap:16px}.setup-step{display:grid;grid-template-columns:50px 1fr;gap:14px;align-items:start}.step-num{width:40px;height:40px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,var(--drac-blue),var(--drac-purple));color:white;font-weight:900}.step-title{font-weight:900;margin-bottom:8px}.code-block{margin:0;padding:14px;border-radius:16px;background:#1d2030;color:#d6ddff;overflow:auto;font:.9rem/1.6 var(--mono)}.site-footer{padding:52px 0 80px;text-align:center}.site-footer .container{display:flex;flex-direction:column;align-items:center;gap:10px}.footer-text{font-size:1.05rem;font-weight:900;margin:0}.footer-sub{margin:0;color:var(--muted)} @media (max-width:1080px){.hero{grid-template-columns:1fr;padding-top:74px}.hero-content{justify-self:start}.hero-art{justify-self:center}.overview-grid,.resources-grid,.video-grid{grid-template-columns:repeat(2,1fr)}.day-body-grid,.ts-diagram,.skill-row{grid-template-columns:1fr}.day-header{grid-template-columns:auto auto auto 1fr auto}.day-tags{grid-column:1 / -2}.day-expand-icon{justify-self:end}} @media (max-width:720px){.container,.header-inner{padding-left:16px;padding-right:16px}.header-nav{display:none}.hero{padding-left:16px;padding-right:16px}.speech-bubble{right:0;top:0;font-size:.82rem}.overview-grid,.resources-grid,.video-grid{grid-template-columns:1fr}.phase-card{grid-template-columns:1fr}.search-box input{min-width:0;width:100%}.day-header{grid-template-columns:auto auto 1fr auto;gap:10px}.day-phase-dot,.day-tags{display:none}.day-actions{justify-content:flex-start}}