/* ALZIO PRG course hub */
:root{color-scheme:light;--navy:#0c1c34;--ink:#182b45;--muted:#60718b;--accent:#6c52da;--line:#dce3f0}*{box-sizing:border-box}html{scroll-behavior:smooth}body.prg-hub{margin:0;background:#f3f5fb;color:var(--ink);font-family:Pretendard,"Malgun Gothic",system-ui,sans-serif;line-height:1.7}a{color:inherit;text-decoration:none}a:focus-visible{outline:3px solid #ce970c;outline-offset:5px}.skip{position:absolute;top:-80px;left:20px;z-index:20;padding:14px;background:white}.skip:focus{top:12px}.site-head{display:flex;justify-content:space-between;align-items:center;padding:19px max(24px,calc((100% - 1240px)/2));background:#09172b;color:#eef2ff;gap:20px;border-bottom:1px solid #ffffff14}.brand{display:flex;gap:12px;align-items:center;font-weight:800}.brand-mark{display:grid;place-items:center;width:48px;height:48px;border-radius:13px;background:linear-gradient(135deg,#8669ed,#4558b9);box-shadow:0 5px 22px #8061de40;font-size:14px}.brand small{display:block;font-size:11px;color:#aebfd7;font-weight:400}.site-head nav{display:flex;gap:18px;font-size:13px}.hero{background:radial-gradient(ellipse at 80% 18%,#7760df35,transparent 55%),radial-gradient(ellipse at 10% 100%,#13839630,transparent 60%),linear-gradient(125deg,#09172b,#172944);color:white;padding:65px 24px 76px;overflow:hidden;position:relative}.hero-inner{max-width:1240px;margin:auto;display:grid;grid-template-columns:1.2fr 1fr;gap:60px;align-items:center}.eyebrow{font:700 11px/1.6 system-ui;letter-spacing:2px;color:#6852bd;display:inline-block}.hero .eyebrow{color:#beaaff;border:1px solid #a58ae04f;padding:7px 13px;border-radius:30px}.eyebrow i{display:inline-block;background:#ae94ff;width:6px;height:6px;border-radius:50%;margin-right:8px;box-shadow:0 0 12px #a287ff}.subheading{color:#bac8e0;font-size:15px;margin:22px 0 9px}h1{font-size:clamp(34px,4.3vw,55px);letter-spacing:-2px;line-height:1.3;margin:0 0 24px}h1 em{font-style:normal;color:#c1b0ff}.lead{color:#bfcee3;line-height:1.9;font-size:16px}.tags{display:flex;flex-wrap:wrap;gap:7px;margin:23px 0 29px}.tags span{border:1px solid #ffffff24;border-radius:7px;background:#ffffff08;padding:5px 10px;font-size:11px;color:#d1dcf0}.primary{display:inline-block;padding:14px 21px;border-radius:10px;background:linear-gradient(115deg,#7860dd,#5d4cbd);font-weight:800;box-shadow:0 7px 25px #5f42c950}.quiet{display:inline-block;color:#c3cde4;margin:12px 0 12px 19px;font-size:13px}.hero-board{border:1px solid #b3baff30;border-radius:23px;background:linear-gradient(135deg,#ffffff0e,#ffffff03);padding:30px;box-shadow:0 25px 70px #020b2250;animation:rise .7s ease both}.board-top{display:flex;justify-content:space-between;font:600 11px system-ui;letter-spacing:1px;color:#a8b9d2}.live{color:#76e6d3}.code-art{font:600 clamp(20px,2.6vw,32px)/1.8 Consolas,monospace;margin:35px 0;color:#eff1ff;letter-spacing:-1px}.code-art span{color:#a58cf5}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;border-top:1px solid #ffffff20;padding-top:24px}.stats b{display:block;font-size:32px;line-height:1.3}.stats b span{font-size:12px;margin-left:5px;font-weight:500}.stats small{font-size:10px;color:#a8bad4}.hero-board>p{font-size:11px;color:#a8bad4;margin:20px 0 0}.lesson-section,.guide{max-width:1288px;margin:auto;padding:52px 24px}.section-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:28px}h2{font-size:26px;letter-spacing:-1px;margin:9px 0}.section-heading p{font-size:14px;color:var(--muted);margin:0}.open-count{font-size:12px;font-weight:800;background:#e9e3ff;color:#5d429f;padding:10px 14px;border-radius:9px;white-space:nowrap}.lesson-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.lesson-card{display:flex;flex-direction:column;background:white;border:1px solid var(--line);border-radius:17px;padding:23px;transition:transform .2s,box-shadow .2s,border-color .2s;min-width:0}.lesson-card:hover,.lesson-card:focus-within{transform:translateY(-4px);box-shadow:0 12px 28px #25346114;border-color:#c5b4f5}.card-top{display:flex;align-items:center;justify-content:space-between}.lesson-no{font:bold 15px Consolas,monospace;background:#f1ecff;border-radius:9px;padding:8px 12px;color:#7052bd}.status{font-size:10px;color:#168476}.lesson-card h3{font-size:18px;line-height:1.5;margin:20px 0 11px;letter-spacing:-.5px;word-break:keep-all}.lesson-card p{font-size:12px;color:var(--muted);line-height:1.9;margin:0 0 24px;flex:1}.card-bottom{border-top:1px solid #e9edf4;padding-top:17px;display:flex;justify-content:space-between;align-items:center;gap:9px;font-size:12px}.card-bottom small{font-size:10px;color:var(--muted)}.card-bottom a{background:#f0ebff;color:#6146ad;font-weight:800;padding:9px 12px;border-radius:8px;white-space:nowrap}.card-bottom a:hover{background:#6a50cb;color:white}.guide{padding-top:0;padding-bottom:60px}.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;background:#e9edf7;border:1px solid #dce3ee;border-radius:16px;padding:27px;margin-top:20px}.guide-grid b{font-size:14px}.guide-grid p,.source-note{font-size:12px;color:var(--muted)}.source-note{margin-top:23px}.course-link{font-size:13px;color:#6043ab;font-weight:bold}footer{background:#0c1c34;color:#abbbd5;padding:24px;text-align:center;font-size:12px}footer a{margin-left:16px;color:#d1c5ff}@keyframes rise{from{transform:translateY(12px);opacity:0}to{transform:none;opacity:1}}@media(max-width:1000px){.hero-inner{gap:30px}.hero-board{padding:22px}.lesson-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.stats b{font-size:26px}}@media(max-width:720px){.site-head{padding:16px;flex-wrap:wrap}.site-head nav{font-size:12px}.hero{padding:40px 20px}.hero-inner{grid-template-columns:1fr}.hero-board{margin-top:6px}.code-art{margin:20px 0}.lesson-section,.guide{padding-left:16px;padding-right:16px}.section-heading{align-items:start;flex-direction:column}h2{font-size:23px}.guide-grid{grid-template-columns:1fr;gap:10px}.quiet{margin-left:12px}}@media(max-width:480px){.lesson-grid{grid-template-columns:1fr}.lesson-card{padding:21px}.brand small{font-size:10px}.hero h1{font-size:36px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}