/* Claude Code Академия — тёмная терминальная тема, акцент — коралл Claude */
:root {
  --bg: #0e0e13;
  --bg-soft: #14141b;
  --panel: #191922;
  --panel-2: #1f1f2a;
  --line: #2a2a38;
  --line-soft: #23232f;
  --text: #e9e7e2;
  --text-dim: #a4a1b0;
  --text-faint: #6d6a7c;
  --accent: #d97757;
  --accent-soft: rgba(217, 119, 87, .14);
  --green: #46c07a;
  --green-soft: rgba(70, 192, 122, .12);
  --amber: #d9a13d;
  --amber-soft: rgba(217, 161, 61, .12);
  --blue: #6ea8f7;
  --blue-soft: rgba(110, 168, 247, .12);
  --red: #e5655e;
  --radius: 14px;
  --font: "Golos Text", -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: var(--font); font-size: 16px; line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
.mono { font-family: var(--mono); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
button { font-family: var(--font); cursor: pointer; }
.dim { color: var(--text-dim); }
.faint { color: var(--text-faint); }

/* ---------- загрузочный экран ---------- */
.boot { min-height: 100vh; display: grid; place-items: center; }
.boot-term { font-size: 22px; color: var(--text-dim); }
.cursor { animation: blink 1s steps(1) infinite; color: var(--accent); }
@keyframes blink { 50% { opacity: 0; } }

/* ---------- каркас ---------- */
.shell { min-height: 100vh; display: flex; flex-direction: column; }
.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 16px;
  padding: 12px 24px; background: rgba(14,14,19,.82);
  backdrop-filter: blur(12px); border-bottom: 1px solid var(--line-soft);
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 800; font-size: 17px; }
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 8px; flex: none;
  background: linear-gradient(135deg, #d97757, #b35138);
  display: grid; place-items: center; color: #fff;
  font-family: var(--mono); font-size: 15px; font-weight: 600;
}
.topbar-progress { margin-left: auto; display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--text-dim); }
.topbar-bar { width: 130px; height: 6px; border-radius: 3px; background: var(--line-soft); overflow: hidden; }
.topbar-bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), #e8956f); transition: width .4s; }
main { flex: 1; width: 100%; max-width: 1060px; margin: 0 auto; padding: 32px 24px 80px; }

footer {
  border-top: 1px solid var(--line-soft); padding: 26px 24px; text-align: center;
  color: var(--text-faint); font-size: 13.5px;
}
footer a { color: var(--text-dim); }

/* ---------- герой ---------- */
.hero { display: grid; grid-template-columns: 1.05fr .95fr; gap: 44px; align-items: center; padding: 40px 0 26px; }
.hero h1 { font-size: 44px; line-height: 1.12; margin: 0 0 16px; font-weight: 800; letter-spacing: -.5px; }
.hero h1 .grad {
  background: linear-gradient(100deg, var(--accent), #eda583);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lead { font-size: 18px; color: var(--text-dim); margin: 0 0 26px; max-width: 46ch; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  border: 0; border-radius: 10px; padding: 12px 22px;
  font-size: 15.5px; font-weight: 600; transition: transform .12s, box-shadow .12s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: linear-gradient(120deg, #d97757, #c05f3e); color: #fff; box-shadow: 0 6px 22px rgba(217,119,87,.28); }
.btn-primary:hover { box-shadow: 0 8px 28px rgba(217,119,87,.4); }
.btn-ghost { background: var(--panel); color: var(--text); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--text-faint); }
.hero-stats { display: flex; gap: 26px; margin-top: 30px; }
.hero-stat b { display: block; font-size: 24px; font-weight: 800; }
.hero-stat span { font-size: 13px; color: var(--text-faint); }

/* ---------- окно терминала ---------- */
.term {
  background: #101017; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: 0 18px 50px rgba(0,0,0,.45);
}
.term-head {
  display: flex; align-items: center; gap: 8px; padding: 10px 14px;
  background: var(--panel-2); border-bottom: 1px solid var(--line-soft);
}
.term-dot { width: 11px; height: 11px; border-radius: 50%; }
.term-dot:nth-child(1) { background: #ff5f57; } .term-dot:nth-child(2) { background: #febc2e; } .term-dot:nth-child(3) { background: #28c840; }
.term-title { margin-left: 8px; font-size: 12.5px; color: var(--text-faint); font-family: var(--mono); }
.term-body {
  padding: 16px 18px; font-family: var(--mono); font-size: 13.5px; line-height: 1.55;
  min-height: 200px; max-height: 420px; overflow-y: auto; white-space: pre-wrap; word-break: break-word;
}
.term-body .u { color: var(--text); }
.term-body .p { color: var(--green); }
.term-body .o { color: var(--text-dim); }
.term-body .claude-dot { color: var(--accent); }

/* интерактивный симулятор */
.sim { margin: 26px 0; }
.sim-intro { font-size: 14.5px; color: var(--text-dim); margin: 0 0 10px; }
.sim-inputrow { display: flex; gap: 8px; border-top: 1px solid var(--line-soft); padding: 10px 14px; background: #14141c; align-items: center; }
.sim-inputrow .p { font-family: var(--mono); color: var(--green); }
.sim-input {
  flex: 1; background: transparent; border: 0; outline: 0; color: var(--text);
  font-family: var(--mono); font-size: 14px;
}
.sim-send { background: var(--panel-2); color: var(--text-dim); border: 1px solid var(--line); border-radius: 8px; padding: 5px 13px; font-size: 13px; }
.sim-send:hover { color: var(--text); }
.sim-tools { display: flex; gap: 14px; padding: 8px 14px 12px; background: #14141c; font-size: 12.5px; }
.sim-tools button { background: none; border: 0; color: var(--text-faint); padding: 0; font-size: 12.5px; }
.sim-tools button:hover { color: var(--text-dim); text-decoration: underline; }
.sim-hint { color: var(--amber); padding: 6px 14px 0; font-size: 13px; background: #14141c; }
.sim.shake .term { animation: shake .35s; }
@keyframes shake { 20%,60% { transform: translateX(-5px); } 40%,80% { transform: translateX(5px); } }
.sim-done {
  display: flex; align-items: center; gap: 10px; padding: 12px 16px; margin-top: -1px;
  background: var(--green-soft); border: 1px solid rgba(70,192,122,.3);
  border-radius: 0 0 var(--radius) var(--radius); color: var(--green); font-size: 14px; font-weight: 600;
}

/* ---------- карточки уровней ---------- */
.section-title { font-size: 26px; font-weight: 800; margin: 46px 0 6px; letter-spacing: -.3px; }
.section-sub { color: var(--text-dim); margin: 0 0 22px; }
.levels { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.level-card {
  position: relative; display: block; background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px 22px 18px; color: var(--text); transition: border-color .15s, transform .15s;
}
.level-card:hover { border-color: var(--accent); text-decoration: none; transform: translateY(-2px); }
.level-num { font-family: var(--mono); font-size: 12.5px; color: var(--accent); font-weight: 600; letter-spacing: .6px; }
.level-card h3 { margin: 6px 0 4px; font-size: 20px; }
.level-card p { margin: 0 0 14px; color: var(--text-dim); font-size: 14.5px; }
.level-meta { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--text-faint); }
.ring { --pct: 0; width: 40px; height: 40px; border-radius: 50%; flex: none;
  background: conic-gradient(var(--accent) calc(var(--pct)*1%), var(--line-soft) 0);
  display: grid; place-items: center; position: absolute; top: 20px; right: 20px; }
.ring i { width: 30px; height: 30px; border-radius: 50%; background: var(--panel); display: grid; place-items: center; font-style: normal; font-size: 10.5px; font-weight: 600; color: var(--text-dim); }
.ring.full { background: var(--green); }
.ring.full i { color: var(--green); }

/* фичи на главной */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 8px; }
.feature { background: var(--bg-soft); border: 1px solid var(--line-soft); border-radius: var(--radius); padding: 20px; }
.feature .ico { font-size: 22px; }
.feature h4 { margin: 10px 0 6px; font-size: 16px; }
.feature p { margin: 0; font-size: 14px; color: var(--text-dim); }

/* ---------- страница уровня ---------- */
.crumbs { font-size: 13.5px; color: var(--text-faint); margin-bottom: 18px; }
.crumbs a { color: var(--text-dim); }
.lesson-list { display: flex; flex-direction: column; gap: 10px; }
.lesson-row {
  display: flex; align-items: center; gap: 16px; background: var(--panel);
  border: 1px solid var(--line); border-radius: 12px; padding: 15px 18px; color: var(--text); transition: border-color .15s;
}
.lesson-row:hover { border-color: var(--accent); text-decoration: none; }
.lesson-row .st {
  width: 30px; height: 30px; border-radius: 50%; flex: none; display: grid; place-items: center;
  font-size: 13px; font-family: var(--mono); border: 1.5px solid var(--line); color: var(--text-faint);
}
.lesson-row.done .st { background: var(--green-soft); border-color: var(--green); color: var(--green); }
.lesson-row b { font-weight: 600; }
.lesson-row .mins { margin-left: auto; font-size: 12.5px; color: var(--text-faint); flex: none; }

/* ---------- страница урока ---------- */
.lesson-head { margin-bottom: 26px; }
.lesson-head h1 { font-size: 32px; margin: 4px 0 8px; letter-spacing: -.4px; }
.lesson-head .sub { color: var(--text-dim); font-size: 17px; margin: 0; }
.lesson-meta { display: flex; gap: 14px; margin-top: 12px; font-size: 13px; color: var(--text-faint); }
.badge { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; background: var(--accent-soft); color: var(--accent); }

.blocks > * { margin: 0 0 18px; }
.blocks p { margin: 0 0 14px; }
.blocks h3 { font-size: 20px; margin: 30px 0 10px; letter-spacing: -.2px; }
.blocks ul { margin: 0 0 14px; padding-left: 22px; }
.blocks li { margin: 4px 0; }
.blocks code, .callout code, td code {
  font-family: var(--mono); font-size: .88em; background: var(--panel-2);
  border: 1px solid var(--line-soft); border-radius: 5px; padding: 1px 6px; color: #e8b18f;
}
.codeblock { position: relative; background: #101017; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.codeblock pre { margin: 0; padding: 15px 17px; overflow-x: auto; font-family: var(--mono); font-size: 13.5px; line-height: 1.55; color: #d6d3ce; }
.codeblock .cap { padding: 7px 15px; font-size: 12.5px; color: var(--text-faint); border-top: 1px solid var(--line-soft); }
.codeblock .copy {
  position: absolute; top: 8px; right: 8px; background: var(--panel-2); color: var(--text-faint);
  border: 1px solid var(--line-soft); border-radius: 7px; font-size: 12px; padding: 3px 10px; opacity: 0; transition: opacity .15s;
}
.codeblock:hover .copy { opacity: 1; }
.copy.ok { color: var(--green); border-color: var(--green); }

.callout { display: flex; gap: 12px; border-radius: 12px; padding: 14px 16px; font-size: 14.5px; border: 1px solid; }
.callout p { margin: 0; }
.callout .ci { flex: none; }
.callout.tip { background: var(--green-soft); border-color: rgba(70,192,122,.3); }
.callout.warning { background: var(--amber-soft); border-color: rgba(217,161,61,.3); }
.callout.info { background: var(--blue-soft); border-color: rgba(110,168,247,.3); }

.taskcard { display: flex; gap: 14px; background: var(--panel); border: 1px dashed var(--text-faint); border-radius: 12px; padding: 16px 18px; align-items: flex-start; }
.taskcard input[type=checkbox] { width: 19px; height: 19px; margin-top: 3px; accent-color: var(--green); cursor: pointer; }
.taskcard .tk-label { font-size: 12px; font-weight: 700; letter-spacing: .8px; color: var(--accent); text-transform: uppercase; }
.taskcard p { margin: 2px 0 0; }
.taskcard.done { border-color: var(--green); border-style: solid; background: var(--green-soft); }

/* ---------- квиз ---------- */
.quiz { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; margin-top: 40px; }
.quiz-head { display: flex; align-items: center; gap: 12px; margin-bottom: 6px; }
.quiz-head h3 { margin: 0; font-size: 20px; }
.quiz-dots { display: flex; gap: 6px; margin: 14px 0 20px; }
.quiz-dot { width: 26px; height: 6px; border-radius: 3px; background: var(--line); }
.quiz-dot.cur { background: var(--text-dim); }
.quiz-dot.right { background: var(--green); }
.quiz-dot.wrong { background: var(--red); }
.quiz-q { font-size: 17px; font-weight: 600; margin: 0 0 16px; }
.quiz-opts { display: flex; flex-direction: column; gap: 10px; }
.quiz-opt {
  text-align: left; background: var(--bg-soft); border: 1px solid var(--line); color: var(--text);
  border-radius: 10px; padding: 12px 16px; font-size: 15px; transition: border-color .12s;
}
.quiz-opt:hover:not(:disabled) { border-color: var(--text-faint); }
.quiz-opt.sel { border-color: var(--accent); background: var(--accent-soft); }
.quiz-opt.right { border-color: var(--green); background: var(--green-soft); }
.quiz-opt.wrong { border-color: var(--red); background: rgba(229,101,94,.1); }
.quiz-opt:disabled { cursor: default; }
.quiz-explain { margin-top: 14px; padding: 12px 16px; border-radius: 10px; background: var(--bg-soft); border: 1px solid var(--line-soft); font-size: 14.5px; color: var(--text-dim); }
.quiz-actions { margin-top: 18px; display: flex; gap: 10px; align-items: center; }
.quiz-result { text-align: center; padding: 16px 0 6px; }
.quiz-result .big { font-size: 46px; font-weight: 800; }
.quiz-result .big.pass { color: var(--green); }
.quiz-result .big.fail { color: var(--amber); }
.quiz-result p { color: var(--text-dim); }

/* навигация между уроками */
.lesson-nav { display: flex; gap: 12px; margin-top: 34px; }
.lesson-nav a { flex: 1; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; color: var(--text); }
.lesson-nav a:hover { border-color: var(--accent); text-decoration: none; }
.lesson-nav .lbl { font-size: 12px; color: var(--text-faint); display: block; }
.lesson-nav .next { text-align: right; }

/* ---------- сертификат ---------- */
.cert-wrap { max-width: 760px; margin: 0 auto; }
.cert {
  background: linear-gradient(160deg, #191922, #12121a); border: 1px solid var(--line);
  border-radius: 18px; padding: 54px 48px; text-align: center; position: relative; overflow: hidden;
}
.cert::before {
  content: ""; position: absolute; inset: 10px; border: 1px solid rgba(217,119,87,.35); border-radius: 12px; pointer-events: none;
}
.cert .cert-logo { font-family: var(--mono); color: var(--accent); font-size: 14px; letter-spacing: 2px; }
.cert h2 { font-size: 30px; margin: 18px 0 4px; }
.cert .cert-name { font-size: 34px; font-weight: 800; margin: 22px 0 6px; color: var(--accent); }
.cert .cert-line { color: var(--text-dim); max-width: 48ch; margin: 0 auto; }
.cert .cert-date { margin-top: 26px; color: var(--text-faint); font-size: 14px; }
.cert-controls { display: flex; gap: 10px; justify-content: center; margin: 22px 0; flex-wrap: wrap; }
.cert-controls input {
  background: var(--panel); border: 1px solid var(--line); color: var(--text); border-radius: 10px;
  padding: 11px 16px; font-size: 15px; font-family: var(--font); min-width: 260px;
}

/* ---------- отзыв ---------- */
.fb { max-width: 560px; margin: 40px auto 0; text-align: center; }
.fb textarea {
  width: 100%; min-height: 90px; background: var(--panel); color: var(--text); border: 1px solid var(--line);
  border-radius: 12px; padding: 12px 16px; font-family: var(--font); font-size: 15px; resize: vertical;
}
.fb .row { display: flex; gap: 10px; margin-top: 10px; justify-content: center; }

/* ---------- куки-баннер ---------- */
.cookiebar {
  position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%); z-index: 100;
  display: flex; gap: 16px; align-items: center;
  width: calc(100% - 32px); max-width: 640px;
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 14px;
  padding: 14px 18px; font-size: 14px; color: var(--text-dim);
  box-shadow: 0 14px 44px rgba(0,0,0,.55);
}
.cookiebar b { color: var(--text); }
.btn-sm { padding: 8px 16px; font-size: 14px; flex: none; }
@media (max-width: 560px) { .cookiebar { flex-direction: column; text-align: center; } }

/* кнопка «начать урок заново» */
.lesson-restart {
  background: none; border: 1px solid var(--line); border-radius: 8px;
  color: var(--text-faint); font-size: 12.5px; padding: 3px 12px; transition: color .12s, border-color .12s;
}
.lesson-restart:hover { color: var(--text-dim); border-color: var(--text-faint); }

/* ---------- адаптив ---------- */
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: 30px; padding-top: 16px; }
  .hero h1 { font-size: 34px; }
  .levels, .features { grid-template-columns: 1fr; }
  main { padding: 20px 16px 60px; }
  .topbar { padding: 10px 16px; }
  .topbar-progress span.lbl { display: none; }
  .cert { padding: 36px 20px; }
}
@media print {
  body { background: #fff; color: #111; }
  .topbar, footer, .cert-controls, .fb, .crumbs { display: none !important; }
  .cert { border-color: #999; background: #fff; color: #111; }
  .cert .cert-line, .cert .cert-date { color: #444; }
}