/* courses screens: list, builder, import, course page */

/* ---------- list */
.crs-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 14px; }
.crs-card { display: flex; flex-direction: column; gap: 8px; }
.crs-card > * + * { margin-top: 0; }
.crs-card.retired { opacity: .7; }
.crs-card-top { display: flex; align-items: center; gap: 8px; }
.crs-code { font-weight: 800; letter-spacing: .06em; font-size: 13px; background: var(--navy); color: #fff; padding: 2px 9px; border-radius: 8px; }
.crs-prog { font-size: 12px; font-weight: 700; color: var(--gold); text-transform: uppercase; letter-spacing: .08em; }
.crs-name { font-size: 17px; }
.crs-desc { margin: 0; color: var(--mute); font-size: 13.5px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.crs-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 10px; font-size: 13.5px; margin-top: 2px; }
.crs-fact { display: inline-flex; align-items: center; gap: 6px; min-width: 0; }
.crs-fact svg { color: var(--gold); flex: none; }
.crs-card-foot { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; border-top: 1px solid var(--line); padding-top: 10px; margin-top: auto; }
.crs-build { gap: 6px; }
.crs-price { font-weight: 700; font-size: 13.5px; }
@media (prefers-color-scheme: dark) { .crs-code { background: #3d44a8; } }

/* ---------- builder */
.crs-source { min-height: 180px; font-size: 14px; }
.crs-build-panel { display: flex; flex-direction: column; gap: 12px; }
.crs-prog-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.crs-prog-head strong { font-size: 16px; }
.crs-build-panel .bar { height: 12px; flex: none; }
.crs-steps { list-style: none; margin: 0; padding: 0; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.crs-step { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-bottom: 1px solid var(--line); min-height: 46px; }
.crs-step:last-child { border-bottom: 0; }
.crs-step-ic { width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; flex: none; background: var(--chip); color: var(--mute); }
.crs-step-name { display: block; font-weight: 600; font-size: 14px; }
.crs-step-note { display: block; color: var(--mute); font-size: 12.5px; word-break: break-word; }
.crs-step-state { font-size: 12.5px; font-weight: 700; color: var(--mute); white-space: nowrap; }
.crs-step.done .crs-step-ic { background: var(--leaf-soft); color: var(--leaf); }
.crs-step.done .crs-step-state { color: var(--leaf); }
.crs-step.work { background: color-mix(in srgb, var(--gold-soft) 55%, transparent); }
.crs-step.work .crs-step-ic { background: var(--gold-soft); color: #7a5718; }
.crs-step.work .crs-step-ic svg { animation: spin 1.2s linear infinite; }
.crs-step.work .crs-step-state { color: #7a5718; }
.crs-step.fail .crs-step-ic { background: var(--red-soft); color: var(--red); }
.crs-step.fail .crs-step-state { color: var(--red); }
.crs-step.hint { color: var(--mute); font-style: italic; }
.crs-step.hint .crs-step-name { font-weight: 500; }
@media (prefers-color-scheme: dark) { .crs-step.work .crs-step-ic, .crs-step.work .crs-step-state { color: var(--gold-light); } }
.crs-done { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; padding: 14px 16px; border-radius: 12px; background: var(--leaf-soft); color: var(--ink); }
.crs-done > svg { color: var(--leaf); flex: none; }
.crs-done strong { font-size: 17px; display: block; }
.crs-done p { margin: 2px 0 0; }
.crs-pre { white-space: pre-wrap; word-break: break-word; font-size: 12.5px; background: var(--chip); padding: 10px 12px; border-radius: 10px; max-height: 320px; overflow: auto; }

/* ---------- course page tabs */
.crs-tabs { display: flex; gap: 4px; overflow-x: auto; border-bottom: 1px solid var(--line); scrollbar-width: none; -webkit-overflow-scrolling: touch; }
.crs-tabs::-webkit-scrollbar { display: none; }
.crs-tab { display: inline-flex; align-items: center; gap: 6px; padding: 10px 14px; min-height: 44px; text-decoration: none; color: var(--mute); font-weight: 600; font-size: 14px;
  border-bottom: 3px solid transparent; margin-bottom: -1px; white-space: nowrap; }
.crs-tab:hover { color: var(--ink); }
.crs-tab.on { color: var(--ink); border-bottom-color: var(--gold); }

/* ---------- sessions */
.crs-mod-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.crs-mod-no { font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--gold); }
.crs-mod-head h3 { font-size: 16px; }
.crs-sess { list-style: none; margin: 6px 0 0; padding: 0; }
.crs-sess li + li { border-top: 1px solid var(--line); }
.crs-sess-row { display: flex; align-items: center; gap: 12px; width: 100%; text-align: left; font: inherit; color: inherit; background: none; border: 0; padding: 10px 4px; cursor: pointer; border-radius: 8px; min-height: 52px; }
.crs-sess-row:hover { background: color-mix(in srgb, var(--navy-soft) 35%, transparent); }
.crs-sess-row strong { display: block; font-size: 14.5px; }
.crs-sess-row small { display: block; color: var(--mute); font-size: 13px; }
.crs-sess-row > svg { color: var(--mute); flex: none; }
.crs-sess-no { width: 32px; height: 32px; border-radius: 50%; background: var(--navy-soft); color: var(--navy); display: grid; place-items: center; font-weight: 800; font-size: 13px; flex: none; }
@media (prefers-color-scheme: dark) { .crs-sess-no { color: #dfe2ff; } }
.crs-missing { font-style: italic; }

/* ---------- tests */
.crs-tests { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.crs-test-row { display: flex; align-items: center; gap: 12px; padding: 11px 16px; text-decoration: none; color: inherit; border-bottom: 1px solid var(--line); min-height: 56px; }
.crs-test-row:last-child { border-bottom: 0; }
.crs-test-row:hover { background: color-mix(in srgb, var(--navy-soft) 35%, transparent); }
.crs-test-row.retired { opacity: .6; }
.crs-test-row strong { display: block; font-size: 14.5px; }
.crs-test-row small { display: block; }
.crs-test-code { font-family: ui-monospace, Consolas, monospace; font-weight: 700; font-size: 13px; background: var(--chip); padding: 3px 8px; border-radius: 7px; white-space: nowrap; flex: none; }
.crs-test-meta { text-align: right; flex: none; font-weight: 700; }
.crs-test-meta small { font-weight: 500; }
.crs-q-head { display: flex; align-items: flex-start; gap: 10px; }
.crs-q-no { width: 28px; height: 28px; border-radius: 50%; background: var(--navy); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 13px; flex: none; }
.crs-q-text { margin: 3px 0 0; font-weight: 600; }
.crs-opts { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.crs-opt { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 10px; font-size: 14px; }
.crs-opt.ok { border-color: var(--leaf); background: var(--leaf-soft); font-weight: 600; }
.crs-opt-l { width: 24px; height: 24px; border-radius: 6px; background: var(--chip); display: grid; place-items: center; font-weight: 700; font-size: 12px; flex: none; }
.crs-opt.ok .crs-opt-l { background: var(--leaf); color: #fff; }
.crs-opt-tick { display: inline-flex; align-items: center; gap: 3px; color: var(--leaf); font-size: 12px; font-weight: 700; flex: none; }
@media (prefers-color-scheme: dark) { .crs-opt-tick { color: #bfe3cc; } .crs-q-no { background: #3d44a8; } }
.crs-opt-edit { display: grid; gap: 8px; }
.crs-opt-line { display: flex; align-items: center; gap: 8px; }
.crs-opt-line input[type=radio] { width: 22px; height: 22px; flex: none; accent-color: var(--leaf); }

/* ---------- phones */
@media (max-width: 640px) {
  .crs-grid { grid-template-columns: 1fr; }
  .crs-facts { grid-template-columns: 1fr; }
  .crs-test-row { display: grid; grid-template-columns: auto 1fr auto; grid-template-areas: "code meta pill" "title title title"; gap: 6px 10px; padding: 10px 12px; }
  .crs-test-code { grid-area: code; justify-self: start; }
  .crs-test-row .grow { grid-area: title; }
  .crs-test-meta { grid-area: meta; display: flex; gap: 8px; align-items: baseline; text-align: left; }
  .crs-test-row .pill { grid-area: pill; }
  .crs-done .btn { width: 100%; justify-content: center; }
  .crs-build-panel .btn-row .btn { flex: 1; justify-content: center; min-height: 42px; }
}
@media (max-width: 640px) { .info-list.crs-info { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) {
  .crs-tab { padding: 10px 8px; gap: 0; font-size: 13.5px; }
  .crs-tab svg { display: none; }
}