/* =============================================
   CoRAI Labs — Courses library
   Catalog + interactive course runtime.
   Layered on the design system in styles.css: same
   navy ink, one interactive blue, ledger motif,
   hairlines over shadows, small radii, system fonts.

   Skin-swap note: the course body was authored against
   a Connect Events palette (--red / --green / --blue /
   --ink / --line / --radius / --shadow ...). We keep
   those NAMES but re-point them at CoRAI tokens below,
   so inline styles inside the course body re-skin with
   zero edits. Brand red is fully retired; only green
   and amber survive as FUNCTIONAL colors (quiz + tips).
   ============================================= */

/* -----------------------------------------
   1. Legacy course tokens → CoRAI system
   ----------------------------------------- */
:root {
    /* former brand accents → the single interactive blue / navy authority */
    --red: var(--c-blue);
    --red-d: var(--c-blue-strong);
    --red-soft: var(--c-bg-2);
    --blue: var(--c-blue);
    --blue-soft: var(--c-bg-2);

    /* functional success (kept, not brand) — quiz-correct + positive bridges */
    --green: #1f7a4d;
    --green-soft: #eaf5ee;

    /* text + structure */
    --ink: var(--c-text);
    --ink-2: var(--c-text-2);
    --muted: var(--c-text-2);
    --line: var(--c-line);
    --card: var(--c-panel);
    --bg: var(--c-bg-2);
    --amber: var(--c-signal);

    --radius: var(--r-sm);
    --shadow: none;
    --drawerW: 340px;

    /* readable text laid over a blue fill — flips in dark mode
       (light-blue fill there needs dark ink, like .btn-primary) */
    --on-blue: #fff;
    --signal-soft: #fbf1e0;
}

[data-theme="dark"] {
    --green: #4fbe86;
    --green-soft: #14301f;
    --on-blue: #0c1322;
    --signal-soft: #362913;
}

/* -----------------------------------------
   2. (Password gate removed — course pages are
      private by unlisted URL, one folder per cohort.)
   ----------------------------------------- */

/* -----------------------------------------
   3. Catalog (courses/index.html) — directory motif
   ----------------------------------------- */
.catalog-hero {
    border-bottom: 1px solid var(--c-line);
}

.catalog-hero-inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: var(--s-8) 40px var(--s-6);
}

.catalog-eyebrow {
    display: block;
    font-family: var(--font-mono);
    font-size: var(--fs-label);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--c-blue);
    margin-bottom: var(--s-3);
}

.catalog-hero h1 {
    font-family: var(--font-display);
    font-size: var(--fs-display);
    font-weight: 400;
    line-height: 1.08;
    letter-spacing: -0.015em;
    color: var(--c-ink);
    margin-bottom: var(--s-4);
    max-width: 18ch;
}

.catalog-lede {
    font-size: 18px;
    color: var(--c-text-2);
    line-height: 1.65;
    max-width: var(--measure);
}

.catalog {
    max-width: var(--container);
    margin: 0 auto;
    padding: var(--s-7) 40px var(--s-9);
}

.catalog-count {
    font-family: var(--font-mono);
    font-size: var(--fs-label);
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--c-text-2);
    padding-bottom: var(--s-3);
    border-bottom: 1px solid var(--c-line-strong);
}

/* numbered ledger rows — one per course */
.course-list { counter-reset: course; }

.course-row {
    display: grid;
    grid-template-columns: 56px 1fr auto;
    gap: var(--s-2) var(--s-5);
    align-items: start;
    padding: var(--s-6) 0;
    border-bottom: 1px solid var(--c-line);
    text-decoration: none;
    transition: background-color var(--t-fast) var(--ease-out);
}

.course-row::before {
    counter-increment: course;
    content: "0" counter(course);
    font-family: var(--font-mono);
    font-size: var(--fs-small);
    color: var(--c-blue);
    padding-top: 4px;
    grid-column: 1;
    grid-row: 1 / span 3;
}

.course-kicker {
    grid-column: 2;
    font-family: var(--font-mono);
    font-size: var(--fs-label);
    font-weight: 600;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--c-text-2);
}

.course-row h3 {
    grid-column: 2;
    font-family: var(--font-display);
    font-size: 26px;
    font-weight: 400;
    letter-spacing: -0.01em;
    color: var(--c-ink);
    line-height: 1.2;
    transition: color var(--t-fast) var(--ease-out);
}

.course-row:hover h3 { color: var(--c-blue); }

.course-row p {
    grid-column: 2;
    font-size: var(--fs-small);
    color: var(--c-text-2);
    line-height: 1.65;
    max-width: 64ch;
}

.course-tags {
    grid-column: 2;
    display: flex;
    gap: var(--s-2);
    flex-wrap: wrap;
    margin-top: var(--s-1);
}

.course-tag {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    padding: 3px 10px;
    border-radius: var(--r-pill);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border: 1px solid var(--c-line-strong);
    color: var(--c-text-2);
    white-space: nowrap;
}

.course-go {
    grid-column: 3;
    grid-row: 1 / span 3;
    align-self: center;
    font-family: var(--font-mono);
    font-size: var(--fs-small);
    font-weight: 600;
    color: var(--c-blue);
    white-space: nowrap;
}

.course-row.soon {
    pointer-events: none;
    opacity: 0.62;
}

.course-row.soon .course-go { color: var(--c-text-2); }

/* -----------------------------------------
   4. Course hero (replaces the Connect Events triband hero)
   ----------------------------------------- */
.course-hero {
    background: var(--c-bg);
    border-bottom: 1px solid var(--c-line);
}

.course-hero-inner {
    max-width: var(--container);
    margin: 0 auto;
    padding: var(--s-7) 40px var(--s-6);
}

.course-hero .kicker {
    display: block;
    font-family: var(--font-mono);
    font-size: var(--fs-label);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--c-blue);
    margin-bottom: var(--s-3);
}

.course-hero h1 {
    font-family: var(--font-display);
    font-size: clamp(30px, 4vw, 46px);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.015em;
    color: var(--c-ink);
    margin-bottom: var(--s-3);
    max-width: 22ch;
}

.course-hero .meta {
    font-size: var(--fs-small);
    color: var(--c-text-2);
    line-height: 1.7;
    max-width: var(--measure);
}

.course-hero .meta + .meta { margin-top: var(--s-2); }

.course-hero .meta a {
    color: var(--c-blue);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color var(--t-fast) var(--ease-out);
}

.course-hero .meta a:hover { border-bottom-color: var(--c-blue); }

/* -----------------------------------------
   5. Sticky sub-nav: day tabs + permanent progress
      (sits below the site nav, not pinned to the top)
   ----------------------------------------- */
/* On a course page the site nav is static so the course's own day-nav is
   the single sticky tier pinned to the top (no double-sticky overlap). */
body.course-page nav { position: static; }

.sticky {
    position: sticky;
    top: 0;
    z-index: 40;
    background: var(--nav-bg);
    border-bottom: 1px solid var(--c-line);
}

.sticky .wrap {
    max-width: var(--container);
    margin: 0 auto;
    padding: 10px 40px;
}

.navrow { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.navrow .daynav { display: flex; gap: 7px; flex-wrap: wrap; }

.navrow .daynav button {
    border: 1px solid var(--c-line-strong);
    background: transparent;
    color: var(--c-text-2);
    padding: 7px 15px;
    border-radius: var(--r-pill);
    font-family: var(--font-mono);
    font-size: 12.5px;
    font-weight: 600;
    letter-spacing: 0.04em;
    cursor: pointer;
    transition: border-color var(--t-fast) var(--ease-out), color var(--t-fast) var(--ease-out), background-color var(--t-fast) var(--ease-out);
}

.navrow .daynav button:hover { border-color: var(--c-blue); color: var(--c-blue); }

.navrow .daynav button.active {
    background: var(--c-blue);
    color: var(--on-blue);
    border-color: var(--c-blue);
}

.progrow { display: flex; align-items: center; gap: 12px; margin-top: 9px; }

.progrow .agbtn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    border: 1px solid var(--c-line-strong);
    background: transparent;
    color: var(--c-text);
    padding: 6px 13px;
    border-radius: var(--r-sm);
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.03em;
    cursor: pointer;
    white-space: nowrap;
    transition: border-color var(--t-fast) var(--ease-out), color var(--t-fast) var(--ease-out);
}

.progrow .agbtn:hover { border-color: var(--c-blue); color: var(--c-blue); }
.progrow .bdsbtn { color: var(--c-text-2); }

.progrow .bar {
    flex: 1;
    height: 6px;
    background: var(--c-line);
    border-radius: var(--r-pill);
    overflow: hidden;
}

.progrow .bar > i {
    display: block;
    height: 100%;
    width: 0;
    background: var(--c-blue);
    border-radius: var(--r-pill);
    transition: width var(--t-slow) var(--ease-out);
}

.progrow .pct {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--c-text);
    font-size: 12px;
    min-width: 120px;
    text-align: right;
}

/* -----------------------------------------
   6. Left agenda drawer + "Bine de știut" drawer
   ----------------------------------------- */
.ag-tab {
    position: fixed;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 45;
    background: var(--c-blue);
    color: var(--on-blue);
    border: none;
    cursor: pointer;
    padding: 16px 9px;
    border-radius: 0 var(--r-sm) var(--r-sm) 0;
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 12px;
    letter-spacing: 0.05em;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    transition: background-color var(--t-fast) var(--ease-out);
}

.ag-tab:hover { background: var(--c-blue-strong); }
.ag-tab .dot { writing-mode: horizontal-tb; display: block; margin: 0 auto 6px; font-size: 15px; }

.overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 12, 34, 0.42);
    z-index: 48;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--t-base) var(--ease-out), visibility var(--t-base) var(--ease-out);
}

.overlay.open { opacity: 1; visibility: visible; }

.drawer {
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    width: var(--drawerW);
    max-width: 88vw;
    background: var(--c-panel);
    z-index: 50;
    transform: translateX(-100%);
    transition: transform var(--t-slow) var(--ease-out);
    box-shadow: 1px 0 0 var(--c-line);
    display: flex;
    flex-direction: column;
}

.drawer.open { transform: translateX(0); }

.drawer .dh {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 16px;
    background: var(--c-band);
    color: var(--c-band-text);
}

.drawer .dh b { font-size: 15px; font-weight: 600; }
.drawer .dh.bdshh { background: var(--c-band); }

.drawer .dh .x {
    margin-left: auto;
    background: var(--c-band-line);
    border: none;
    color: var(--c-band-text);
    width: 30px;
    height: 30px;
    border-radius: var(--r-xs);
    font-size: 18px;
    cursor: pointer;
    line-height: 1;
}

.drawer .dh .x:hover { background: rgba(255, 255, 255, 0.28); }
.drawer .db { padding: 12px; overflow-y: auto; flex: 1; }

.agroup { display: none; flex-direction: column; gap: 7px; }
.agroup.show { display: flex; }

.arow {
    display: grid;
    grid-template-columns: 20px 1fr;
    gap: 9px;
    align-items: start;
    background: var(--c-panel);
    border: 1px solid var(--c-line);
    border-left: 3px solid var(--c-blue);
    border-radius: var(--r-xs);
    padding: 9px 11px;
}

.arow.wow { border-left-color: var(--c-ink); background: var(--c-bg-2); }
.arow.workshop { border-left-color: var(--green); background: var(--green-soft); }
.arow.break { border-left-color: var(--c-line-strong); background: var(--c-bg-2); }
.arow .t { font-variant-numeric: tabular-nums; font-weight: 700; color: var(--c-ink); font-size: 12px; display: block; font-family: var(--font-mono); }
.arow .w { font-size: 13px; }
.arow .w b { font-weight: 600; color: var(--c-text); }
.arow .w small { color: var(--c-text-2); font-size: 11.5px; display: block; margin-top: 1px; }
.arow input { width: 16px; height: 16px; accent-color: var(--c-blue); cursor: pointer; margin-top: 2px; }

.ad-empty { color: var(--c-text-2); font-size: 13.5px; text-align: center; padding: 30px 14px; }

.bdslead { font-size: 13px; color: var(--c-text-2); margin: 2px 0 13px; }

.bdsblk {
    margin-bottom: 13px;
    border: 1px solid var(--c-line);
    border-radius: var(--r-sm);
    padding: 11px 13px;
    background: var(--c-bg-2);
}

.bdsblk .bdsh { font-weight: 600; font-size: 14px; color: var(--c-ink); margin-bottom: 5px; }
.bdsblk p { margin: 0; font-size: 13px; color: var(--c-text-2); line-height: 1.5; }

/* -----------------------------------------
   7. Main day content
   ----------------------------------------- */
main.course-main {
    max-width: var(--container);
    margin: 0 auto;
    padding: var(--s-6) 40px var(--s-9);
}

.day { display: none; animation: fade var(--t-base) var(--ease-out); }
.day.active { display: block; }

@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .day { animation: none; } }

.day-head { margin-bottom: 16px; }

.day-head .badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 11px;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--c-blue);
    border: 1px solid var(--c-line-strong);
    padding: 4px 12px;
    border-radius: var(--r-pill);
    margin-bottom: 12px;
}

.day-head h2 {
    margin: 0 0 4px;
    font-family: var(--font-display);
    font-size: clamp(24px, 3vw, 32px);
    color: var(--c-ink);
    font-weight: 400;
    letter-spacing: -0.01em;
    line-height: 1.15;
}

.day-head .sub { color: var(--c-text-2); font-size: 15px; }

.sec { margin: 32px 0 14px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.sec .ic { font-size: 19px; }
.sec h3 { margin: 0; font-size: 18px; color: var(--c-ink); font-weight: 600; }
.sec .hint { color: var(--c-text-2); font-size: 13px; font-weight: 500; font-family: var(--font-mono); }

/* concept cards */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 14px; }

.concept {
    background: var(--c-panel);
    border: 1px solid var(--c-line);
    border-top: 2px solid var(--c-line-strong);
    border-radius: var(--r-sm);
    padding: 15px 16px 16px;
    display: flex;
    flex-direction: column;
    transition: border-color var(--t-fast) var(--ease-out);
}

.concept:hover { border-top-color: var(--c-ink); }
.concept .top { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }

.concept .code {
    background: var(--c-ink);
    color: var(--c-band-text);
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--r-xs);
    letter-spacing: 0.03em;
}

.concept .prio {
    font-family: var(--font-mono);
    font-size: 10.5px;
    font-weight: 600;
    padding: 2px 9px;
    border-radius: var(--r-pill);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border: 1px solid var(--c-line-strong);
}

.prio.high { color: var(--c-blue); border-color: var(--c-blue); }
.prio.med { color: var(--c-signal); border-color: var(--c-signal); }
.prio.low { color: var(--green); border-color: var(--green); }

.concept .mark { margin-left: auto; display: flex; align-items: center; gap: 5px; font-size: 12px; color: var(--c-text-2); cursor: pointer; user-select: none; }
.concept .mark input { accent-color: var(--green); }
.concept h4 { margin: 0 0 6px; font-size: 16px; color: var(--c-ink); font-weight: 600; }
.concept .what { margin: 0 0 12px; font-size: 14px; color: var(--c-text-2); flex: 1; }

.concept .ex { background: var(--c-bg-2); border: 1px solid var(--c-line); border-radius: var(--r-xs); padding: 9px 11px; font-size: 13.5px; }
.concept .ex b { color: var(--c-blue); display: block; font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 2px; }
.concept .ex .demolink { font-size: 11.5px; font-weight: 600; text-decoration: none; white-space: nowrap; margin-left: 6px; color: var(--c-blue); border-bottom: 1px dotted currentColor; transition: opacity var(--t-fast); }
.concept .ex .demolink:hover { opacity: 0.75; }
.concept .ex .demolink .ar { font-size: 9px; margin-right: 2px; }
.concept .ex .demolink.d1, .concept .ex .demolink.d2, .concept .ex .demolink.d3, .concept .ex .demolink.dsk { color: var(--c-blue); }
.demo { scroll-margin-top: 120px; }
.concept.done { opacity: 0.55; }
.concept.done h4 { text-decoration: line-through; text-decoration-color: var(--c-text-2); }

/* demo cards */
.feat { display: flex; flex-direction: column; gap: 14px; }

.demo {
    background: var(--c-panel);
    border: 1px solid var(--c-line);
    border-radius: var(--r-sm);
    overflow: hidden;
}

.demo .hd {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 13px 16px;
    background: var(--c-band);
    color: var(--c-band-text);
}

.demo.d1 .hd, .demo.d2 .hd, .demo.d3 .hd, .demo.dsk .hd { background: var(--c-band); }
.demo .hd .em { font-size: 21px; }
.demo .hd h4 { margin: 0; font-size: 16px; font-weight: 600; }

.demo .hd .lab {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 10.5px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    background: var(--c-band-line);
    color: var(--c-band-text);
    padding: 3px 9px;
    border-radius: var(--r-pill);
}

.demo .bd { padding: 14px 16px; }
.demo .bd p { margin: 0 0 10px; }
.demo .bd .steps { margin: 0; padding-left: 18px; }
.demo .bd .steps li { margin: 4px 0; }

.demo .bd .note {
    background: var(--c-bg-2);
    border-left: 3px solid var(--c-line-strong);
    border-radius: 0 var(--r-xs) var(--r-xs) 0;
    padding: 9px 12px;
    font-size: 13.5px;
    margin-top: 10px;
}

.demo .bd .demo-actions { display: flex; gap: 10px; flex-wrap: wrap; margin: 6px 0 2px; }

.demo-open {
    display: inline-flex;
    align-items: center;
    border: 1px solid var(--c-line-strong);
    background: transparent;
    color: var(--c-ink);
    font-weight: 600;
    font-size: 13.5px;
    padding: 9px 16px;
    border-radius: var(--r-sm);
    text-decoration: none;
    transition: border-color var(--t-fast) var(--ease-out), color var(--t-fast) var(--ease-out);
}

.demo-open:hover { border-color: var(--c-blue); color: var(--c-blue); }

.demo .hd .hdfisa {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: var(--c-panel);
    color: var(--c-ink);
    font-weight: 600;
    font-size: 12px;
    padding: 5px 11px;
    border-radius: var(--r-xs);
    text-decoration: none;
    white-space: nowrap;
    transition: color var(--t-fast) var(--ease-out);
}

.demo .hd .hdfisa:hover { color: var(--c-blue); }

.pillset { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 6px; }

.pill {
    background: var(--c-bg-2);
    border: 1px solid var(--c-line);
    border-radius: var(--r-pill);
    padding: 4px 11px;
    font-size: 12.5px;
    color: var(--c-text);
    font-weight: 500;
}

/* callouts — navy = primary "firul roșu", blue = info */
.callout {
    background: var(--c-bg-2);
    border-left: 3px solid var(--c-ink);
    border-radius: 0 var(--r-sm) var(--r-sm) 0;
    padding: 14px 16px;
    margin: 14px 0;
}

.callout.blue { border-left-color: var(--c-blue); }
.callout h4 { margin: 0 0 5px; color: var(--c-ink); font-size: 15px; font-weight: 600; }
.callout p { margin: 0; font-size: 14px; }

/* resource + data links */
.res { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 12px; }

.res a {
    display: block;
    background: var(--c-panel);
    border: 1px solid var(--c-line);
    border-radius: var(--r-sm);
    padding: 13px 15px;
    text-decoration: none;
    color: var(--c-text);
    transition: border-color var(--t-fast) var(--ease-out);
}

.res a:hover { border-color: var(--c-blue); }
.res a b { display: block; color: var(--c-blue); font-size: 14.5px; margin-bottom: 3px; }
.res a small { color: var(--c-text-2); font-size: 12.5px; }

.soon { text-align: center; padding: 60px 20px; color: var(--c-text-2); }
.soon .em { font-size: 40px; display: block; margin-bottom: 10px; }
.soon h3 { color: var(--c-ink); margin: 0 0 6px; }

/* tables */
table.tbl {
    width: 100%;
    border-collapse: collapse;
    background: var(--c-panel);
    border: 1px solid var(--c-line);
    border-radius: var(--r-sm);
    overflow: hidden;
    font-size: 13.5px;
}

table.tbl th, table.tbl td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--c-line); }
table.tbl th { background: var(--c-band); color: var(--c-band-text); font-family: var(--font-mono); font-weight: 600; font-size: 11.5px; letter-spacing: 0.04em; text-transform: uppercase; }
table.tbl tr:last-child td { border-bottom: none; }

/* accordions (details/summary) */
.acc { border: 1px solid var(--c-line); border-radius: var(--r-sm); margin-top: 12px; overflow: hidden; background: var(--c-panel); }

.acc > summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 14px;
    font-weight: 600;
    font-size: 14px;
    color: var(--c-ink);
    background: var(--c-bg-2);
    user-select: none;
}

.acc > summary::-webkit-details-marker { display: none; }
.acc > summary .chev { margin-left: auto; transition: transform var(--t-base) var(--ease-out); color: var(--c-text-2); font-size: 13px; }
.acc[open] > summary .chev { transform: rotate(180deg); }

.acc > summary .tagx {
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 2px 8px;
    border-radius: var(--r-pill);
    border: 1px solid var(--c-line-strong);
    color: var(--c-text-2);
}

.acc.acc-green > summary .tagx { color: var(--green); border-color: var(--green); }
.acc.acc-blue > summary .tagx { color: var(--c-blue); border-color: var(--c-blue); }
.acc .accbody { padding: 13px 14px 15px; border-top: 1px solid var(--c-line); }
.acc .accbody p.lead { margin: 0 0 12px; font-size: 13.5px; color: var(--c-text-2); }
.acc .mininote { font-size: 12.5px; color: var(--c-text-2); margin: 12px 0 4px; }
.acc .exlist { margin: 4px 0 0; padding-left: 20px; }
.acc .exlist li { margin: 8px 0; font-size: 13.5px; }

/* prompt chain (copy-to-clipboard) */
.pchain { display: flex; flex-direction: column; gap: 11px; }
.pstep { border: 1px solid var(--c-line); border-radius: var(--r-sm); overflow: hidden; }
.pstep .ph { display: flex; align-items: center; gap: 9px; padding: 8px 12px; background: var(--c-bg-2); }

.pstep .ph .n {
    background: var(--c-blue);
    color: var(--on-blue);
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 12px;
    width: 22px;
    height: 22px;
    border-radius: var(--r-pill);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.pstep .ph b { font-size: 13.5px; color: var(--c-ink); font-weight: 600; }

.pstep .ph .copybtn {
    margin-left: auto;
    border: 1px solid var(--c-blue);
    background: transparent;
    color: var(--c-blue);
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 12px;
    padding: 5px 12px;
    border-radius: var(--r-xs);
    cursor: pointer;
    white-space: nowrap;
    transition: background-color var(--t-fast) var(--ease-out), color var(--t-fast) var(--ease-out);
}

.pstep .ph .copybtn:hover { background: var(--c-blue); color: var(--on-blue); }
.pstep .ph .copybtn.ok { background: transparent; border-color: var(--green); color: var(--green); }

.pstep .ptext {
    margin: 0;
    padding: 11px 13px;
    font-size: 13px;
    line-height: 1.5;
    color: var(--c-text);
    white-space: pre-wrap;
    font-family: var(--font-mono);
    background: var(--c-panel);
}

/* data-file links */
.datalinks { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 9px; margin-top: 8px; }

.datalinks a {
    display: flex;
    align-items: center;
    gap: 9px;
    border: 1px solid var(--c-line);
    border-radius: var(--r-sm);
    padding: 10px 12px;
    text-decoration: none;
    color: var(--c-text);
    background: var(--c-panel);
    transition: border-color var(--t-fast) var(--ease-out);
}

.datalinks a:hover { border-color: var(--c-blue); }
.datalinks a .xi { font-size: 18px; flex-shrink: 0; }
.datalinks a b { display: block; font-size: 13px; color: var(--c-ink); line-height: 1.2; font-weight: 600; }
.datalinks a small { color: var(--c-text-2); font-size: 11.5px; }
.datalinks a.primary { border-color: var(--green); background: var(--green-soft); }

/* plan-B dashboard mockup */
.dash { border: 1px solid var(--c-line); border-radius: var(--r-sm); overflow: hidden; background: var(--c-panel); }
.dash .dtitle { background: var(--c-band); color: var(--c-band-text); padding: 11px 14px; }
.dash .dtitle b { font-size: 14.5px; font-weight: 600; }
.dash .dtitle small { display: block; color: var(--c-band-text-2); font-size: 11.5px; margin-top: 1px; }
.dash .dwrap { padding: 13px; }

.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 9px; margin-bottom: 13px; }
.kpi { border: 1px solid var(--c-line); border-radius: var(--r-sm); padding: 10px 11px; background: var(--c-bg-2); }
.kpi .v { font-family: var(--font-display); font-size: 20px; font-weight: 400; color: var(--c-ink); line-height: 1.1; font-variant-numeric: tabular-nums; }
.kpi .v.r { color: var(--c-blue); } .kpi .v.g { color: var(--green); } .kpi .v.b { color: var(--c-blue); }
.kpi .l { font-family: var(--font-mono); font-size: 10.5px; color: var(--c-text-2); margin-top: 3px; text-transform: uppercase; letter-spacing: 0.03em; }

.charts { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; }
.chart { border: 1px solid var(--c-line); border-radius: var(--r-sm); padding: 11px; }
.chart .ct { font-family: var(--font-mono); font-size: 11.5px; font-weight: 600; color: var(--c-ink); margin-bottom: 10px; text-transform: uppercase; letter-spacing: 0.03em; }

.bars { display: flex; align-items: flex-end; gap: 8px; height: 104px; }
.bars .col { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 4px; height: 100%; justify-content: flex-end; }
.bars .col .bk { width: 100%; border-radius: var(--r-xs) var(--r-xs) 0 0; background: var(--c-blue); }
.bars .col.peak .bk { background: var(--c-ink); }
.bars .col .bl { font-family: var(--font-mono); font-size: 10.5px; color: var(--c-text-2); font-weight: 500; }
.bars .col .bv { font-size: 10px; color: var(--c-text); font-weight: 600; }

.hbars { display: flex; flex-direction: column; gap: 7px; }
.hbar { display: grid; grid-template-columns: 96px 1fr 42px; align-items: center; gap: 8px; font-size: 11.5px; }
.hbar .hl { color: var(--c-text); font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.hbar .ht { height: 12px; background: var(--c-line); border-radius: var(--r-pill); overflow: hidden; }
.hbar .ht > i { display: block; height: 100%; background: var(--c-blue); border-radius: var(--r-pill); }
.hbar .hv { font-weight: 600; color: var(--c-ink); text-align: right; font-variant-numeric: tabular-nums; }

.signals { display: flex; gap: 7px; flex-wrap: wrap; margin-top: 12px; }
.signals .sg { font-family: var(--font-mono); font-size: 11px; font-weight: 600; padding: 5px 10px; border-radius: var(--r-pill); border: 1px solid var(--c-line-strong); }
.signals .sg.dn { color: var(--c-signal); border-color: var(--c-signal); }
.signals .sg.up { color: var(--green); border-color: var(--green); }

.insl { list-style: none; margin: 13px 0 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.insl li { display: flex; gap: 9px; font-size: 13px; align-items: flex-start; background: var(--c-bg-2); border: 1px solid var(--c-line); border-radius: var(--r-sm); padding: 9px 11px; }
.insl li .ik { flex-shrink: 0; font-size: 15px; line-height: 1.3; }
.insl li b { color: var(--c-ink); }

.recos { margin: 13px 0 0; padding-left: 0; list-style: none; counter-reset: rc; display: flex; flex-direction: column; gap: 7px; }
.recos li { counter-increment: rc; display: flex; gap: 9px; font-size: 13px; align-items: flex-start; }
.recos li::before { content: counter(rc); background: var(--c-blue); color: var(--on-blue); font-family: var(--font-mono); font-weight: 600; font-size: 11px; width: 20px; height: 20px; border-radius: var(--r-pill); display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px; }
.dash-cap { font-size: 12px; color: var(--c-text-2); margin-top: 11px; font-style: italic; }

/* workflow diagram — the inline SVGs carry a fixed light palette (dark ink on
   light fills), so the figure card stays light in both themes to keep them
   legible. Full theme-adaptive diagrams are a follow-up. */
.wfdiagram { border: 1px solid #e3e8ef; border-radius: var(--r-sm); background: #ffffff; padding: 12px; margin-top: 12px; }
[data-theme="dark"] .wfdiagram { border-color: #cfd6e2; }
.wfdiagram svg { display: block; width: 100%; height: auto; max-width: 560px; margin: 0 auto; }
.wfcap { font-size: 12px; color: var(--c-text-2); text-align: center; margin-top: 6px; font-style: italic; }

.ztag { display: inline-block; background: var(--c-ink); color: var(--c-band-text); font-family: var(--font-mono); font-size: 10px; font-weight: 600; padding: 1px 6px; border-radius: var(--r-xs); margin-left: 5px; letter-spacing: 0.02em; vertical-align: middle; }

/* quiz — correct = functional green, "not quite" = amber signal */
.qhead { margin: 16px 0 2px; font-weight: 600; font-size: 14.5px; color: var(--c-ink); }
.qhead span { font-weight: 500; font-size: 12.5px; color: var(--c-text-2); }
.quiz { display: flex; flex-direction: column; gap: 11px; margin-top: 11px; }
.qcard { border: 1px solid var(--c-line); border-radius: var(--r-sm); padding: 12px 14px; background: var(--c-panel); }
.qcard .qapp { font-weight: 600; font-size: 14.5px; color: var(--c-ink); }
.qcard .qind { font-family: var(--font-mono); font-size: 11px; color: var(--c-text-2); margin: 2px 0 9px; text-transform: uppercase; letter-spacing: 0.03em; }
.qbtns { display: flex; gap: 7px; flex-wrap: wrap; }

.qb {
    flex: 1;
    min-width: 118px;
    border: 1px solid var(--c-line-strong);
    background: transparent;
    color: var(--c-text);
    font-weight: 600;
    font-size: 12.5px;
    padding: 8px 10px;
    border-radius: var(--r-xs);
    cursor: pointer;
    font-family: inherit;
    transition: border-color var(--t-fast) var(--ease-out);
}

.qb:hover { border-color: var(--c-blue); }
.qcard.answered .qb { cursor: default; }
.qcard.answered .qb:hover { border-color: var(--c-line-strong); }
.qb.ok { background: var(--green-soft); border-color: var(--green); color: var(--green); }
.qb.no { background: var(--signal-soft); border-color: var(--c-signal); color: var(--c-signal); }

.qfb { display: none; margin-top: 10px; font-size: 13px; line-height: 1.5; background: var(--c-bg-2); border-radius: var(--r-sm); padding: 10px 12px; color: var(--c-text); }
.qfb.show { display: block; }
.qfb .fok { color: var(--green); font-weight: 600; }
.qfb .fno { color: var(--c-signal); font-weight: 600; }
.qsafe { margin-top: 7px; background: var(--green-soft); border-left: 3px solid var(--green); border-radius: 0 var(--r-xs) var(--r-xs) 0; padding: 7px 10px; }

/* -----------------------------------------
   8. Responsive
   ----------------------------------------- */
@media (max-width: 900px) {
    .course-row { grid-template-columns: 40px 1fr; }
    .course-go { grid-column: 2; grid-row: auto; align-self: start; margin-top: var(--s-1); }
}

@media (max-width: 768px) {
    .catalog-hero-inner, .course-hero-inner { padding-left: 20px; padding-right: 20px; }
    .catalog, .sticky .wrap, main.course-main { padding-left: 20px; padding-right: 20px; }
    .kpis { grid-template-columns: repeat(2, 1fr); }
    .charts { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
    .progrow .pct { min-width: auto; }
}

/* -----------------------------------------
   9. Print — drop chrome, show all days
   ----------------------------------------- */
@media print {
    .sticky, .ag-tab, .drawer, .overlay, nav { display: none !important; }
    .day { display: block !important; }
    body { background: #fff; }
    .acc[open] .accbody { display: block; }
}