/* learn.css — styles for the interactive Learn-to-Type page */
.learn-hero{padding:36px 0 20px;border-bottom:1px solid var(--line)}
.learn-hero h1{font-size:clamp(26px,4vw,40px);font-weight:800;max-width:20ch}
.learn-hero h1 em{font-style:normal;color:var(--green);position:relative}
.learn-hero h1 em::after{content:"";position:absolute;left:0;right:0;bottom:3px;height:7px;background:rgba(217,138,43,.32);z-index:-1}
.learn-hero p{font-size:17px;color:var(--muted);max-width:60ch;margin-top:12px}
.learn-progress{display:inline-block;margin-top:14px;font-size:13px;font-weight:700;color:var(--green-d);background:rgba(31,107,79,.1);padding:6px 14px;border-radius:20px}

.learn-grid{display:grid;grid-template-columns:260px 1fr;gap:24px;align-items:start;padding:28px 0}
@media(max-width:860px){.learn-grid{grid-template-columns:1fr}}

/* lesson list */
.lesson-list{display:flex;flex-direction:column;gap:4px;position:sticky;top:80px}
@media(max-width:860px){.lesson-list{position:static}}
.lesson-group{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--amber);margin:12px 0 4px 4px}
.lesson-item{display:flex;align-items:center;gap:10px;text-align:left;padding:10px 12px;border-radius:9px;border:1px solid transparent;background:transparent;width:100%;transition:.12s}
.lesson-item:hover{background:var(--card);border-color:var(--line)}
.lesson-item.active{background:var(--card);border-color:var(--green)}
.lesson-item.done .li-num{background:var(--green);color:#fff}
.li-num{width:24px;height:24px;border-radius:50%;background:var(--paper-2);color:var(--muted);display:grid;place-items:center;font-size:12px;font-weight:700;flex-shrink:0}
.lesson-item.active .li-num{background:var(--green);color:#fff}
.li-title{font-size:13px;font-weight:600;color:var(--ink);flex:1;line-height:1.3}
.li-stat{font-size:11px;font-weight:700;color:var(--green);font-family:'JetBrains Mono'}

/* lesson panel */
.lesson-panel{display:flex;flex-direction:column;gap:16px}
.lesson-badge{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--green);background:rgba(31,107,79,.1);padding:4px 10px;border-radius:6px;align-self:flex-start}
.lesson-panel h2{font-size:22px;font-weight:700}
.lesson-intro{font-size:15px;color:var(--muted);background:var(--card);border:1px solid var(--line);border-left:3px solid var(--green);border-radius:0 10px 10px 0;padding:14px 16px}
.drill-tabs{display:flex;gap:6px;flex-wrap:wrap}
.drill-tab{font-size:13px;font-weight:600;padding:6px 12px;border:1.5px solid var(--line);border-radius:8px;color:var(--muted);background:var(--paper)}
.drill-tab.on{background:var(--ink);color:var(--paper);border-color:var(--ink)}

/* drill text */
.drill-text{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:22px 24px;font-family:'JetBrains Mono';font-size:24px;line-height:1.8;letter-spacing:1px;min-height:80px;word-break:break-word}
.drill-text .ch{color:var(--muted);border-radius:3px;padding:1px 0}
.drill-text .ch.ok{color:var(--green)}
.drill-text .ch.cur{background:var(--amber);color:#3a2400;box-shadow:0 0 0 2px var(--amber)}
.drill-text .ch.space.ok{background:rgba(31,107,79,.15)}

#learnInput{width:100%;font-family:'JetBrains Mono';font-size:18px;padding:14px 16px;border:1.5px solid var(--line);border-radius:12px;background:var(--paper);color:var(--ink);margin-top:4px}
#learnInput:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(31,107,79,.12)}
#learnInput:disabled{background:var(--paper-2)}

/* finger label + stats */
.learn-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
#fingerLabel{font-weight:700;font-size:15px}
.lstats{display:flex;gap:10px;margin-left:auto}
.lstat{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:8px 14px;text-align:center;min-width:74px}
.lstat .v{font-family:'JetBrains Mono';font-size:20px;font-weight:700;color:var(--green-d)}
.lstat .k{font-size:10px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-weight:600}

/* keyboard */
.keyboard{display:flex;flex-direction:column;gap:6px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:14px;user-select:none;overflow-x:auto}
.kb-row{display:flex;gap:6px;justify-content:center}
.kb-key{position:relative;min-width:38px;height:42px;border-radius:8px;border:1px solid var(--line);background:var(--paper);
  display:grid;place-items:center;font-family:'JetBrains Mono';font-size:14px;font-weight:600;color:var(--ink);
  border-bottom-width:3px;transition:.08s}
.kb-key.space{min-width:240px}
.kb-key span{pointer-events:none}
/* finger color shown as a bottom accent */
.kb-key::after{content:"";position:absolute;left:6px;right:6px;bottom:3px;height:3px;border-radius:2px;background:var(--fc,transparent);opacity:.5}
.kb-key.fhint{background:color-mix(in srgb, var(--fc) 12%, var(--paper))}
.kb-key.next{background:var(--fc,var(--green));color:#fff;border-color:var(--fc,var(--green));transform:translateY(1px);box-shadow:0 0 0 3px rgba(0,0,0,.06)}
.kb-key.next::after{opacity:0}

/* finger legend */
.finger-legend{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-top:6px}
.fl-item{display:flex;align-items:center;gap:6px;font-size:11px;color:var(--muted);font-weight:600}
.fl-dot{width:11px;height:11px;border-radius:50%}

/* drill done */
.drill-done{background:linear-gradient(135deg,#15503b,#1f6b4f);color:#fff;border-radius:14px;padding:20px 22px;display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.drill-done h3{color:#fff;font-size:18px;margin-bottom:2px}
.drill-done .dd-stats{display:flex;gap:18px}
.dd-stat .v{font-family:'JetBrains Mono';font-size:24px;font-weight:800}
.dd-stat .k{font-size:11px;color:#cfe3da}
.drill-done .dd-acts{margin-left:auto;display:flex;gap:8px}

/* homepage teaser */
.learn-teaser{background:linear-gradient(135deg,#1f6b4f,#15503b);color:#fff;border-radius:20px;padding:30px;display:grid;grid-template-columns:1.5fr 1fr;gap:24px;align-items:center}
.learn-teaser h2{color:#fff;font-size:26px;margin-bottom:10px}
.learn-teaser p{color:#d6e7df;font-size:15px;margin-bottom:8px}
.learn-teaser .steps{display:flex;flex-direction:column;gap:7px;margin:14px 0}
.learn-teaser .steps div{font-size:14px;color:#eaf3ef}
.learn-teaser .steps b{color:#ffd9a8;font-family:'JetBrains Mono';margin-right:8px}
.learn-teaser .mini-kb{background:rgba(255,255,255,.1);border-radius:12px;padding:16px;text-align:center}
.learn-teaser .mini-kb .row{display:flex;gap:4px;justify-content:center;margin-bottom:4px}
.learn-teaser .mini-kb .k{width:26px;height:26px;border-radius:5px;background:rgba(255,255,255,.15);display:grid;place-items:center;font-size:11px;font-family:'JetBrains Mono';color:#fff}
.learn-teaser .mini-kb .k.hl{background:#ffd9a8;color:#3a2400;font-weight:700}
@media(max-width:680px){.learn-teaser{grid-template-columns:1fr;padding:24px}.learn-teaser .mini-kb{display:none}}