/* Aegis-GPU v2 public site (catalog, cert pages, practice, mock exam, plan, dashboard, tutor). The lab simulator keeps css/styles.css. */
@font-face {
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 300;
  font-display: swap;
  src: url('/fonts/DMSans-300-normal.woff2') format('woff2');
}

@font-face {
  font-family: 'DM Sans';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/DMSans-400-italic.woff2') format('woff2');
}

@font-face {
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/DMSans-400-normal.woff2') format('woff2');
}

@font-face {
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('/fonts/DMSans-500-normal.woff2') format('woff2');
}

@font-face {
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('/fonts/DMSans-600-normal.woff2') format('woff2');
}

@font-face {
  font-family: 'DM Serif Display';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/DMSerifDisplay-400-italic.woff2') format('woff2');
}

@font-face {
  font-family: 'DM Serif Display';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/DMSerifDisplay-400-normal.woff2') format('woff2');
}

@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 300;
  font-display: swap;
  src: url('/fonts/JetBrainsMono-300-normal.woff2') format('woff2');
}

@font-face {
  font-family: 'JetBrains Mono';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/JetBrainsMono-400-italic.woff2') format('woff2');
}

@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/JetBrainsMono-400-normal.woff2') format('woff2');
}

@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('/fonts/JetBrainsMono-500-normal.woff2') format('woff2');
}

@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/fonts/JetBrainsMono-700-normal.woff2') format('woff2');
}

:root {
  --bg: #0b0e14; --bg2: #111520; --bg3: #171d2b; --bg4: #1e2636; --border: #2a3347;
  --text: #c8d4e8; --dim: #8796b0; --white: #eef3fb;
  --green: #76b900; --green2: #a3d44e; --red: #ef6b6b; --yellow: #f0b429; --blue: #6aaeff; --cyan: #2fd7d7; --purple: #a993f0;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace; --font-ui: 'DM Sans', system-ui, sans-serif; --font-disp: 'DM Serif Display', Georgia, serif;
  --radius: 10px; --maxw: 1120px;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 var(--font-ui); }
a { color: var(--green2); text-underline-offset: 3px; }
a:hover { color: var(--white); }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 2px; border-radius: 4px; }
img { max-width: 100%; height: auto; }
code, kbd, pre { font-family: var(--font-mono); font-size: .9em; }
code { background: var(--bg3); padding: .1em .35em; border-radius: 4px; }
h1, h2, h3 { color: var(--white); line-height: 1.25; }
h1 { font-family: var(--font-disp); font-weight: 400; font-size: clamp(2rem, 4.5vw, 3rem); margin: .2em 0 .4em; }
h2 { font-size: 1.45rem; margin: 2rem 0 .75rem; }
h3 { font-size: 1.1rem; margin: 1.25rem 0 .5rem; }
.skip { position: absolute; left: -999px; top: 0; background: var(--green); color: #000; padding: .5rem 1rem; z-index: 100; }
.skip:focus { left: 1rem; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 1.25rem; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* header / footer */
.site-header { border-bottom: 1px solid var(--border); background: rgba(11,14,20,.92); position: sticky; top: 0; z-index: 20; backdrop-filter: blur(6px); }
.site-header .wrap { display: flex; align-items: center; gap: 1rem; min-height: 60px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: .55rem; color: var(--white); text-decoration: none; font-weight: 600; letter-spacing: .02em; }
.brand img { width: 28px; height: 28px; }
.nav { display: flex; gap: .25rem; flex-wrap: wrap; margin-left: auto; align-items: center; }
.nav a { color: var(--text); text-decoration: none; padding: .4rem .7rem; border-radius: 8px; font-size: .95rem; }
.nav a:hover, .nav a[aria-current="page"] { background: var(--bg3); color: var(--white); }
.nav .acct { border: 1px solid var(--border); }
.site-footer { border-top: 1px solid var(--border); margin-top: 4rem; padding: 2rem 0 3rem; color: var(--dim); font-size: .9rem; }
.site-footer .wrap { display: grid; gap: 1rem; }
.disclaimer { background: var(--bg2); border: 1px solid var(--border); border-left: 4px solid var(--yellow); padding: .75rem 1rem; border-radius: var(--radius); color: var(--text); font-size: .92rem; }
.crumbs { font-size: .9rem; color: var(--dim); margin: 1.25rem 0 0; }
.crumbs a { color: var(--dim); }

/* hero + layout */
.hero { padding: 3rem 0 1.5rem; }
.lead { font-size: 1.15rem; max-width: 52rem; color: var(--text); }
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.grid-2 { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.card { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.1rem 1.2rem; }
.card h3 { margin-top: 0; }
.card.link { display: block; text-decoration: none; color: inherit; transition: border-color .15s, transform .15s; }
.card.link:hover { border-color: var(--green); transform: translateY(-1px); }
.card.flag { border-color: var(--green); box-shadow: 0 0 0 1px rgba(118,185,0,.25) inset; }
.meta { color: var(--dim); font-size: .9rem; }
.pill { display: inline-block; font-size: .78rem; padding: .1rem .55rem; border-radius: 999px; border: 1px solid var(--border); color: var(--text); margin-right: .3rem; white-space: nowrap; }
.pill.ok { border-color: var(--green); color: var(--green2); }
.pill.warn { border-color: var(--yellow); color: var(--yellow); }
.pill.info { border-color: var(--blue); color: var(--blue); }
.btn { display: inline-flex; align-items: center; gap: .4rem; background: var(--green); color: #0b0e14; border: 0; border-radius: 8px; padding: .6rem 1.05rem; font: 600 .95rem var(--font-ui); text-decoration: none; cursor: pointer; }
.btn:hover { background: var(--green2); color: #0b0e14; }
.btn.secondary { background: transparent; color: var(--white); border: 1px solid var(--border); }
.btn.secondary:hover { border-color: var(--green); color: var(--white); }
.btn.small { padding: .35rem .7rem; font-size: .85rem; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.actions { display: flex; gap: .6rem; flex-wrap: wrap; margin: 1rem 0; }
table { width: 100%; border-collapse: collapse; font-size: .93rem; }
th, td { text-align: left; padding: .55rem .6rem; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--white); font-weight: 600; background: var(--bg3); position: sticky; top: 60px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
.bar { height: 8px; background: var(--bg4); border-radius: 99px; overflow: hidden; }
.bar > span { display: block; height: 100%; background: var(--green); }
.bar.weight > span { background: var(--blue); }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: .25rem 1rem; margin: 0; }
.kv dt { color: var(--dim); }
.kv dd { margin: 0; color: var(--white); }
.note { font-size: .88rem; color: var(--dim); }
.unverified { color: var(--yellow); }
details { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: .6rem 1rem; margin: .5rem 0; }
summary { cursor: pointer; color: var(--white); font-weight: 600; }
ol.objectives, ul.plain { padding-left: 1.2rem; }
ol.objectives li { margin: .25rem 0; }
.coming { border-style: dashed; color: var(--dim); }

/* header "More" menu + advanced toggle */
.menu { position: relative; }
.menu-btn, .adv-toggle { background: transparent; color: var(--text); border: 0; padding: .4rem .7rem; border-radius: 8px; font: .95rem var(--font-ui); cursor: pointer; }
.menu-btn:hover, .menu-btn[aria-expanded="true"] { background: var(--bg3); color: var(--white); }
.menu-list { list-style: none; margin: 0; padding: .4rem; min-width: 15rem; background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: 0 10px 30px rgba(0,0,0,.45); }
.js .menu-list { position: absolute; right: 0; top: calc(100% + .3rem); display: none; z-index: 40; }
.js .menu-list.open { display: block; }
.menu-list a, .menu-list .adv-toggle { display: block; width: 100%; text-align: left; padding: .45rem .7rem; }
.menu-sep { border-top: 1px solid var(--border); margin-top: .3rem; padding-top: .3rem; }
.adv-toggle[aria-pressed="true"] { color: var(--green2); }
.nav-adv { display: none; }

/* progressive disclosure */
.hero.compact { padding: 1.5rem 0 .5rem; }
.hero.compact h1 { margin-bottom: .2em; }
.hub { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); margin: 1rem 0 2rem; }
.hub-card { display: flex; flex-direction: column; gap: .4rem; }
.hub-card h2 { font-size: 1.15rem; margin: 0 0 .2rem; }
.hub-card p { margin: 0; }
.hub-card .btn { margin-top: auto; align-self: flex-start; }
.hub-card.continue { border-color: var(--green); }
.bars li { margin: .35rem 0; }
.bar-label { display: block; font-size: .85rem; color: var(--dim); }
.more-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; border-top: 1px solid var(--border); padding-top: 1rem; }
.more-head h2 { margin: 0; font-size: 1.15rem; }
details.fold { padding: 0; }
details.fold > summary { padding: .75rem 1rem; list-style: none; display: flex; align-items: center; gap: .6rem; }
details.fold > summary::-webkit-details-marker { display: none; }
details.fold > summary::before { content: '▸'; color: var(--dim); transition: transform .15s; }
details.fold[open] > summary::before { transform: rotate(90deg); }
details.fold > summary h2 { display: inline; font-size: 1.05rem; margin: 0; }
.fold-body { padding: 0 1rem 1rem; }
.fold-body details { background: var(--bg); }
ul.tools li { margin: .4rem 0; }
/* simulator: secondary panels only in Advanced mode */
html:not(.aegis-advanced) [data-advanced] { display: none !important; }

/* buttons */
.btn.ghost { background: transparent; color: var(--text); border: 1px solid transparent; }
.btn.ghost:hover { border-color: var(--border); color: var(--white); }
.btn.danger, .btn.ghost.danger { background: transparent; color: var(--red); border: 1px solid var(--red); }
.btn[aria-pressed="true"] { color: var(--green2); }

/* forms */
label { display: block; font-weight: 600; color: var(--white); margin: .75rem 0 .25rem; }
input, select, textarea { width: 100%; max-width: 28rem; background: var(--bg); color: var(--white); border: 1px solid var(--border); border-radius: 8px; padding: .55rem .7rem; font: 1rem var(--font-ui); }
textarea { max-width: none; min-height: 5rem; }
.form-row { display: flex; gap: .4rem 1rem; flex-wrap: wrap; align-items: center; }
.form-row label { margin: 0; }
.form-row input, .form-row select { width: auto; }
.stack { display: grid; gap: .1rem; }
.stack .btn { margin-top: 1rem; justify-self: start; }
.narrow { max-width: 34rem; }
.msg { margin: .75rem 0; padding: .6rem .9rem; border-radius: 8px; background: var(--bg3); }
.msg.err { border-left: 4px solid var(--red); }
.msg.ok { border-left: 4px solid var(--green); }
.recovery-code { font: 600 1.4rem var(--font-mono); letter-spacing: .1em; color: var(--yellow); background: var(--bg); border: 1px dashed var(--yellow); border-radius: 8px; padding: .8rem; text-align: center; user-select: all; }
.tabs { display: flex; gap: .3rem; border-bottom: 1px solid var(--border); margin-bottom: .5rem; }
.tabs [role="tab"] { background: none; border: 0; border-bottom: 3px solid transparent; color: var(--dim); padding: .5rem .8rem; font: 600 .95rem var(--font-ui); cursor: pointer; }
.tabs [role="tab"][aria-selected="true"] { color: var(--white); border-bottom-color: var(--green); }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* quiz */
.quiz .stem { font-size: 1.12rem; color: var(--white); margin: .5rem 0 1rem; font-weight: 600; }
.quiz .stem:focus { outline: none; }
.opts { display: grid; gap: .55rem; }
.opt { width: 100%; text-align: left; background: var(--bg3); color: var(--text); border: 1px solid var(--border); border-radius: 8px; padding: .75rem .9rem; font: 1rem var(--font-ui); cursor: pointer; display: flex; gap: .5rem; }
.opt:hover:not(:disabled) { border-color: var(--blue); }
.opt .letter { font: 600 .85rem var(--font-mono); color: var(--dim); min-width: 1.2rem; }
.opt.correct, li.correct { border-color: var(--green); background: #17260b; }
.opt.wrong, li.wrong { border-color: var(--red); background: #2a1414; }
.opt:disabled { cursor: default; }
.opt-radio { display: flex; gap: .6rem; align-items: flex-start; font-weight: 400; color: var(--text); background: var(--bg3); border: 1px solid var(--border); border-radius: 8px; padding: .65rem .9rem; margin: .45rem 0; cursor: pointer; }
.opt-radio input { width: auto; margin-top: .3rem; }
fieldset { border: 0; padding: 0; margin: 0; }
legend.stem { padding: 0; }
.explain { margin-top: 1rem; padding: 1rem; background: var(--bg3); border-radius: var(--radius); border-left: 4px solid var(--blue); }
.explain.ok { border-left-color: var(--green); }
.explain.bad { border-left-color: var(--red); }
.explain .verdict { font-weight: 600; color: var(--white); margin-top: 0; }
.hint { font-size: .82rem; color: var(--dim); }
.review summary { font-weight: 400; }
.review ol li { padding: .1rem .4rem; border-radius: 4px; border: 1px solid transparent; }
.timer { font: 600 1.2rem var(--font-mono); color: var(--white); }
.timer.low { color: var(--red); }
.mock-bar { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; position: sticky; top: 60px; background: var(--bg2); padding: .4rem 0; z-index: 5; }
.navgrid { display: flex; flex-wrap: wrap; gap: .3rem; margin: 1rem 0; }
.nav-q { width: 2.3rem; height: 2.1rem; border-radius: 6px; border: 1px solid var(--border); background: var(--bg3); color: var(--text); font: .8rem var(--font-mono); cursor: pointer; }
.nav-q.done { background: #1d2a40; border-color: var(--blue); }
.nav-q.flag { border-color: var(--yellow); box-shadow: inset 0 -3px 0 var(--yellow); }
.nav-q.cur { outline: 2px solid var(--white); }

/* bars with labels (dashboard / hub) */
.bar { position: relative; display: block; height: 1.1rem; background: var(--bg4); border-radius: 99px; overflow: hidden; min-width: 6rem; }
.bar > span { display: block; height: 100%; background: var(--green); }
.bar > b { position: absolute; right: .4rem; top: 0; font: 600 .72rem/1.1rem var(--font-mono); color: var(--white); }
details .bar.weight { height: 6px; margin: .4rem 0; }

/* dashboard */
.dash-top { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); margin-top: 1rem; }
.stat .big { font: 400 2.6rem/1 var(--font-disp); color: var(--white); margin: 0 0 .3rem; }
.stat p { margin: .2rem 0; }
table.dash td { vertical-align: middle; }

/* plan */
ol.plan { list-style: none; padding: 0; }
.plan-day { padding: .6rem .8rem; border-bottom: 1px solid var(--border); break-inside: avoid; }
.plan-day h3 { margin: 0 0 .3rem; font-size: 1rem; }
.plan-day.review { border-left: 3px solid var(--blue); }
.plan-day.final { border-left: 3px solid var(--yellow); }
.plan-day ul { margin: 0; padding-left: 1.1rem; }
@media print { .site-header, .site-footer, .no-print, .tutor-fab, .crumbs, form { display: none !important; } body { background: #fff; color: #000; } h1, h2, h3 { color: #000; } a { color: #000; } }

/* tutor */
.tutor-fab { position: fixed; right: 1rem; bottom: 1rem; z-index: 30; background: var(--green); color: #0b0e14; border: 0; border-radius: 999px; padding: .7rem 1.1rem; font: 600 .95rem var(--font-ui); box-shadow: 0 4px 16px rgba(0,0,0,.4); cursor: pointer; }
.tutor-panel { position: fixed; right: 1rem; bottom: 4.2rem; z-index: 31; width: min(26rem, calc(100vw - 2rem)); max-height: min(36rem, 75vh); display: flex; flex-direction: column; background: var(--bg2); border: 1px solid var(--border); border-radius: 12px; box-shadow: 0 10px 40px rgba(0,0,0,.5); }
.tutor-panel[hidden] { display: none; }
.tutor-head { display: flex; justify-content: space-between; align-items: center; padding: .5rem 1rem; border-bottom: 1px solid var(--border); color: var(--white); }
.tutor-log { padding: .75rem 1rem; overflow-y: auto; flex: 1; font-size: .93rem; }
.tutor-msg { margin: .5rem 0; }
.tutor-msg.me { color: var(--white); font-weight: 600; }
.tutor-text { white-space: pre-wrap; }
.tutor-cites { font-size: .85rem; padding-left: 1.4rem; }
.tutor-panel form { padding: .7rem; border-top: 1px solid var(--border); }
.tutor-panel form .actions { margin: .4rem 0 0; align-items: center; }
.tutor-panel textarea { min-height: 3.2rem; }

@media (max-width: 640px) {
  .site-header .wrap { gap: .3rem; }
  .nav a, .menu-btn { padding: .35rem .5rem; font-size: .9rem; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }
.bars { list-style: none; padding-left: 0; }

/* ---- Full-course content: guides, glossary, labs, evidence ---- */
a.term { color: inherit; text-decoration: underline dotted var(--green); text-underline-offset: 3px; }
a.term:hover, a.term:focus { color: var(--green2); }
.evidence { margin: .4rem 0 .8rem; font-size: .9rem; }
.evidence > summary { cursor: pointer; color: var(--dim); }
.evidence blockquote { margin: .5rem 0; padding: .5rem .8rem; border-left: 3px solid var(--green); background: var(--bg3); border-radius: 4px; }
.evidence blockquote p { margin: .2rem 0; }
.guide { margin-bottom: 1.2rem; scroll-margin-top: 5rem; }
.points > li { margin-bottom: .6rem; }
.points > li > p { margin: 0 0 .2rem; }
dl.glossary dt { font-weight: 600; color: var(--white); margin-top: 1rem; scroll-margin-top: 5rem; }
dl.glossary dd { margin: .2rem 0 0 0; }
.lab { margin-bottom: 1.2rem; scroll-margin-top: 5rem; }
.lab-ui textarea, .lab-ui input[type=text] { width: 100%; box-sizing: border-box; }
.lab-ui input[type=number] { width: 8rem; }
.lab-ui label { font-weight: 600; display: inline-block; min-width: 12rem; }
.lab-out { margin-top: .8rem; padding: .8rem; background: var(--bg3); border-radius: var(--radius); overflow-x: auto; }
.lab-out .bar { display: inline-block; width: 8rem; height: .6rem; background: var(--bg); border-radius: 3px; vertical-align: middle; }
.lab-out .bar span { display: block; height: 100%; background: var(--green); border-radius: 3px; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .85rem; white-space: pre-wrap; }