/* Dev Journey — front page ("B1 terminal"). Tokens live in chrome.css. */
* { box-sizing: border-box; }
body.ln-page { margin: 0; background: var(--ln-bg); color: var(--ln-text); font: 16px/1.55 var(--ln-font); }
.ln-page a { color: var(--ln-accent); }
.ln-page a:hover { color: var(--ln-accent-hover); }
.ln-page h1, .ln-page h2, .ln-page h3 { color: var(--ln-strong); }

/* buttons */
.ln-btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 1.35rem;
  background: var(--ln-accent); color: var(--ln-accent-ink) !important; border: 1px solid var(--ln-accent);
  border-radius: 4px; font-weight: 600; text-decoration: none; white-space: nowrap;
}
.ln-btn:hover { background: var(--ln-accent-hover); border-color: var(--ln-accent-hover); }
.ln-btn-ghost { background: transparent; color: var(--ln-text) !important; border-color: var(--ln-line-strong); font-weight: 500; }
.ln-btn-ghost:hover { background: transparent; border-color: var(--ln-muted); }

/* hero */
.ln-hero { padding: 4.5rem 0 3.5rem; }
.ln-hero-grid { display: flex; flex-wrap: wrap; gap: 3rem; align-items: center; }
.ln-hero-copy { flex: 1 1 30rem; min-width: 0; }
.ln-prompt { margin: 0 0 1.1rem; font: 0.82rem var(--ln-mono); color: var(--ln-good); letter-spacing: 0.04em; }
.ln-hero h1 { margin: 0 0 1.25rem; font-size: clamp(2.2rem, 4.4vw, 3.4rem); line-height: 1.08; font-weight: 600; letter-spacing: -0.02em; }
.ln-lede { margin: 0 0 2rem; font-size: 1.18rem; color: var(--ln-muted); max-width: 35rem; }
.ln-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

.ln-term { flex: 1 1 27rem; min-width: 0; background: var(--ln-term); border: 1px solid var(--ln-line); border-radius: var(--ln-radius); overflow: hidden; font: 0.82rem/1.55 var(--ln-mono); }
.ln-term-screen pre { margin: 0; padding: 1rem 1.1rem; color: #d6d2c6; white-space: pre-wrap; overflow-wrap: anywhere; font: inherit; height: 13.5rem; overflow: hidden; }
.ln-hl { color: var(--ln-accent); font-weight: 700; }
.ln-file { color: var(--ln-accent); }
.ln-num { color: var(--ln-good); }
.ln-dim { color: var(--ln-faint); }
.ln-cursor { color: var(--ln-accent); }
.ln-ok { color: var(--ln-good); }
.ln-term-bar { display: flex; justify-content: space-between; gap: 1rem; padding: 0.35rem 1rem; background: var(--ln-accent); color: var(--ln-accent-ink); font-weight: 700; }

/* sections + panels */
.ln-section { padding: 0 0 3.5rem; }
.ln-section-head { margin-bottom: 1.6rem; }
.ln-section-head h2 { margin: 0 0 0.35rem; font-size: 1.75rem; font-weight: 600; }
.ln-section-head p { margin: 0; color: var(--ln-muted); }
.ln-panel { background: var(--ln-panel); border: 1px solid var(--ln-line); border-radius: var(--ln-radius); overflow: hidden; }
.ln-panel .ln-strip a { color: var(--ln-muted); text-decoration: none; }
.ln-panel .ln-strip a:hover { color: var(--ln-text); }

/* ~/continue */
.ln-continue { display: flex; flex-wrap: wrap; gap: 1.5rem 2.5rem; padding: 1.5rem; align-items: center; }
.ln-continue-main { flex: 1 1 22rem; min-width: 0; }
.ln-kicker { font: 0.78rem var(--ln-mono); color: var(--ln-faint); text-transform: lowercase; }
.ln-continue h2 { margin: 0.2rem 0 0.3rem; font-size: 1.35rem; font-weight: 600; }
.ln-continue-next { margin: 0 0 0.8rem; color: var(--ln-muted); }
.ln-continue-bar { margin: 0; font-size: 0.95rem; overflow-x: auto; }
.ln-continue-side { display: flex; flex-wrap: wrap; gap: 1.25rem 2rem; align-items: center; }
.ln-week { display: flex; gap: 0.55rem; margin: 0; padding: 0; list-style: none; font: 0.75rem var(--ln-mono); color: var(--ln-faint); }
.ln-week li { display: flex; flex-direction: column; align-items: center; gap: 0.1rem; }
.ln-day-box { font-size: 0.95rem; line-height: 1.2; }
.ln-week li.is-done { color: var(--ln-accent); }
.ln-week li.is-today { color: var(--ln-text); font-weight: 700; }
.ln-stats { display: grid; grid-template-columns: repeat(2, minmax(0, auto)); gap: 0.1rem 1.25rem; margin: 0; font: 0.8rem var(--ln-mono); }
.ln-stats div { display: flex; gap: 0.5rem; justify-content: space-between; }
.ln-stats dt { color: var(--ln-faint); }
.ln-stats dd { margin: 0; color: var(--ln-text); }
.ln-recent { display: flex; flex-wrap: wrap; border-top: 1px solid var(--ln-line); }
.ln-recent:empty { display: none; }
.ln-recent-item { flex: 1 1 18rem; display: flex; justify-content: space-between; gap: 1rem; padding: 0.75rem 1.5rem; color: var(--ln-text) !important; text-decoration: none; font-size: 0.92rem; }
.ln-recent-item + .ln-recent-item { border-left: 1px solid var(--ln-line); }
.ln-recent-item:hover { background: var(--ln-bg); }
.ln-recent-item .ln-ascii { font-size: 0.8rem; }

/* ~/toolkit */
.ln-tools { display: grid; grid-template-columns: repeat(auto-fit, minmax(17.5rem, 1fr)); gap: 1rem; }
.ln-tool { display: flex; flex-direction: column; gap: 0.6rem; padding: 1.35rem; background: var(--ln-panel); border: 1px solid var(--ln-line); border-radius: var(--ln-radius); color: var(--ln-text) !important; text-decoration: none; }
a.ln-tool:hover { border-color: var(--ln-muted); }
.ln-tool.is-feature { border-color: var(--ln-accent); }
.ln-tool-top { display: flex; justify-content: space-between; gap: 1rem; font: 0.8rem var(--ln-mono); }
.ln-tool-n { color: var(--ln-accent); }
.ln-tool-status { color: var(--ln-faint); }
.ln-tool-status.is-live, .ln-tool-status.is-free { color: var(--ln-good); }
.ln-tool-status.is-next { color: var(--ln-accent); }
.ln-tool-title { font-size: 1.22rem; font-weight: 600; color: var(--ln-strong); }
.ln-tool-desc { color: var(--ln-muted); font-size: 0.94rem; }
.ln-tool-bar { font-size: 0.78rem; overflow: hidden; }
.ln-tool-meta { margin-top: auto; font: 0.8rem var(--ln-mono); color: var(--ln-faint); }
.ln-tool.is-planned .ln-tool-title { color: var(--ln-text); }

/* ~/courses */
.ln-topics { display: flex; flex-wrap: wrap; gap: 0.4rem; padding: 1rem 1.25rem 0; }
.ln-topics button, .ln-pager button {
  min-height: 34px; padding: 0 0.8rem; border: 1px solid var(--ln-line); border-radius: 4px;
  background: transparent; color: var(--ln-muted); font: 0.8rem var(--ln-mono); cursor: pointer;
}
.ln-topics button:hover, .ln-pager button:hover:not(:disabled) { color: var(--ln-text); border-color: var(--ln-line-strong); }
.ln-topics button.is-active, .ln-pager button.is-active { color: var(--ln-accent-ink); background: var(--ln-accent); border-color: var(--ln-accent); }
.ln-pager button:disabled { opacity: 0.4; cursor: default; }
.ln-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr)); gap: 0.75rem; padding: 1.25rem; }
.ln-course { display: flex; flex-direction: column; gap: 0.35rem; padding: 1rem 1.1rem; background: var(--ln-bg); border: 1px solid var(--ln-line); border-radius: 4px; color: var(--ln-text) !important; text-decoration: none; }
.ln-course:hover { border-color: var(--ln-muted); }
.ln-course[hidden] { display: none; }
.ln-course-kind { font: 0.75rem var(--ln-mono); color: var(--ln-faint); }
.ln-level.is-beginner { color: var(--ln-good); }
.ln-level.is-intermediate { color: var(--ln-accent); }
.ln-level.is-advanced { color: var(--ln-bad); }
.ln-course-title { font-weight: 600; color: var(--ln-strong); }
.ln-tags { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.2rem; }
.ln-tag { font: 0.72rem var(--ln-mono); color: var(--ln-muted); }
.ln-tag + .ln-tag::before { content: "· "; color: var(--ln-faint); }
.ln-free { margin-left: auto; font: 0.72rem var(--ln-mono); color: var(--ln-good); border: 1px solid rgba(143, 208, 197, 0.4); border-radius: 3px; padding: 0 0.35rem; }
.ln-pager { display: flex; flex-wrap: wrap; gap: 0.4rem; padding: 0 1.25rem 1.25rem; }
.ln-pager:empty { display: none; }

/* features */
.ln-features { border-top: 1px solid var(--ln-line); background: var(--ln-tint); }
.ln-features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 2rem; padding-top: 3rem; padding-bottom: 3rem; }
.ln-features h3 { margin: 0 0 0.4rem; font: 0.82rem var(--ln-mono); color: var(--ln-accent); }
.ln-features p { margin: 0; color: var(--ln-muted); }

@media (max-width: 640px) {
  .ln-hero { padding-top: 2.5rem; }
  .ln-recent-item + .ln-recent-item { border-left: 0; border-top: 1px solid var(--ln-line); }
}