/* Kynning fyrir 9. bekk — fylgir litum og leturstærð vefsins. */
.nav-intro{border:1px solid var(--accent);margin-bottom:10px}
.intro-start{box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 15%,transparent)}
.intro-course{max-width:1180px;margin:auto}
.intro-course *{min-width:0;box-sizing:border-box}
.intro-toolbar{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:22px}
.intro-toolbar p{font-size:1.2rem;font-weight:750;margin:5px 0 0}
.intro-eyebrow{font-size:.7rem;letter-spacing:.14em;color:var(--accent);font-weight:800}
.intro-sections{display:flex;flex-wrap:wrap;gap:10px}
.intro-sections a{padding:12px 16px;border:1px solid var(--line);border-radius:10px;color:var(--muted);font-size:.85rem;font-weight:650}
.intro-sections a[aria-current]{background:var(--panel2);color:var(--accent);border-color:var(--accent)}
.intro-progress{display:flex;align-items:center;gap:16px;font-size:.75rem;color:var(--muted);margin:18px 0}
.intro-progress progress{height:6px;flex:1;max-width:250px;border:0;border-radius:4px;background:var(--panel2);accent-color:var(--accent)}
.intro-progress progress::-webkit-progress-bar{background:var(--panel2);border-radius:4px}
.intro-progress progress::-webkit-progress-value{background:var(--accent);border-radius:4px}
.intro-text-button{border:0;background:none;color:var(--accent);font:inherit;cursor:pointer;min-height:44px;padding:8px}
.intro-slide{background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:clamp(22px,3.5vw,46px);min-height:410px;overflow:hidden}
.intro-slide-label{display:flex;justify-content:space-between;gap:15px;color:var(--accent);font-size:.76rem;font-weight:700;letter-spacing:.04em;margin-bottom:24px}
.intro-slide-label span{white-space:nowrap;color:var(--muted);font-variant-numeric:tabular-nums}
.intro-slide h1{font-size:clamp(1.8rem,3.2vw,3rem);line-height:1.13;letter-spacing:-.035em;margin:0 0 22px;max-width:920px;overflow-wrap:anywhere}
.intro-slide h1:focus{outline:none}
.intro-subtitle{font-size:clamp(1.4rem,2.5vw,2.1rem);font-weight:650;color:var(--accent);line-height:1.25}
.intro-lead{font-size:1.1rem;color:var(--muted);margin:0 0 24px;line-height:1.6}
.intro-questions{font-size:clamp(1.3rem,2.5vw,2rem);line-height:1.65;font-weight:650}
.intro-big{color:var(--accent);font-size:clamp(1.6rem,2.5vw,2.4rem);line-height:1.2;margin:22px 0}
.intro-body{font-size:1.15rem;line-height:1.65;max-width:850px}
.intro-rows{margin:0;display:grid;gap:0}
.intro-rows>div{display:grid;grid-template-columns:minmax(140px,.7fr) 2fr;gap:24px;padding:19px 0;border-top:1px solid var(--line)}
.intro-rows dt{font-weight:750;font-size:1.04rem;color:var(--accent)}
.intro-rows dd{margin:0;font-size:1.05rem;line-height:1.6}
.intro-columns{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin:20px 0}
.intro-columns>section{background:var(--panel2);border:1px solid var(--line);border-radius:14px;padding:25px}
.intro-columns h2{font-size:1.25rem;color:var(--accent);line-height:1.3;margin:0 0 18px}
.intro-columns p{font-size:1.05rem;line-height:1.65;margin:0}
.intro-takeaway{border-left:3px solid var(--accent);padding:14px 18px;margin:25px 0 0;background:var(--panel2);font-size:1rem;line-height:1.6;border-radius:0 8px 8px 0}
.intro-numbers{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin:30px 0}
.intro-numbers span{font-size:clamp(1.8rem,3.4vw,3rem);font-weight:800;text-align:center;padding:22px 5px;background:var(--panel2);border:1px solid var(--line);border-radius:14px;color:var(--accent)}
.intro-numbers span:nth-child(2){color:var(--blue)}
.intro-numbers span:nth-child(3){color:var(--orange)}
.intro-image-layout{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}
.intro-image-layout figure{margin:0}
.intro-image-layout img{width:100%;height:auto;max-height:410px;object-fit:cover;aspect-ratio:4/3;border-radius:14px;display:block}
.intro-image-layout figcaption{font-size:.7rem;color:var(--muted);line-height:1.5;margin-top:10px}
.intro-tool{display:flex;align-items:center;flex-wrap:wrap;gap:15px;margin:28px 0 0}
.intro-tool span{font-size:.72rem;color:var(--muted);max-width:280px;line-height:1.5}
.intro-course .btn{min-height:44px;white-space:normal;text-align:center}
.intro-course .btn-outline{color:var(--accent);border-color:var(--accent)}
.intro-course .btn-outline:hover{color:var(--text);background:var(--panel2)}
body.light-mode .intro-course{--blue:#3b57b2;--orange:#a14c12}
.intro-course .btn:disabled{opacity:.4;cursor:default}
.intro-course a:focus-visible,.intro-course button:focus-visible,.intro-course summary:focus-visible,.intro-course select:focus-visible,.intro-course textarea:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
.intro-chart-layout{display:grid;grid-template-columns:minmax(0,3fr) minmax(170px,1fr);gap:26px;align-items:start}
.intro-chart-layout aside{font-size:.95rem;line-height:1.6;background:var(--panel2);border-radius:12px;padding:20px}
.intro-chart{margin:0}
.intro-chart svg{width:100%;height:auto;display:block;overflow:visible}
.intro-chart svg text{fill:var(--muted);font:13px system-ui,sans-serif}
.intro-gridline{stroke:var(--line);stroke-width:1}
.intro-chart-line{fill:none;stroke:var(--accent);stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.intro-chart-dot{fill:var(--accent)}
.intro-chart figcaption,.intro-source{font-size:.74rem;color:var(--muted);line-height:1.5;margin:12px 0}
.intro-table,.intro-notes{font-size:.85rem;line-height:1.65;color:var(--muted)}
.intro-table summary,.intro-notes summary{cursor:pointer;padding:14px 0;color:var(--text);min-height:44px}
.intro-table-scroll{max-height:280px;overflow:auto;border:1px solid var(--line);border-radius:10px}
.intro-table table{width:100%;border-collapse:collapse;color:var(--text);font-variant-numeric:tabular-nums}
.intro-table th,.intro-table td{padding:8px 16px;text-align:left;border-bottom:1px solid var(--line)}
.intro-table caption{padding:12px}
.intro-table thead{background:var(--panel2)}
.intro-table a,.intro-sources a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.intro-sources{list-style:none;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:0 25px}
.intro-sources li{padding:15px 0;border-top:1px solid var(--line)}
.intro-sources a{display:block;font-weight:750;margin-bottom:5px}
.intro-sources span{font-size:.9rem;color:var(--muted)}
.intro-answer{border-top:1px solid var(--line);margin-top:30px;padding-top:25px}
.intro-answer h2{font-size:1.2rem;margin:0 0 12px}
.intro-answer label{display:block;font-size:.95rem;line-height:1.5;margin-bottom:12px}
.intro-answer textarea{font:inherit;line-height:1.6;color:var(--text);background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:16px;width:100%;resize:vertical}
.intro-small{font-size:.75rem;color:var(--muted);line-height:1.5}
.intro-answer-footer{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
#introSaveStatus{font-size:.75rem;color:var(--accent)}
.intro-navigation{display:grid;grid-template-columns:auto minmax(150px,1fr) auto;gap:22px;align-items:end;margin:22px 0 12px}
.intro-navigation>div{max-width:460px;justify-self:center;width:100%}
.intro-navigation label{display:block;font-size:.7rem;color:var(--muted);margin-bottom:5px}
.intro-navigation select{font:inherit;font-size:.85rem;width:100%;height:46px;background:var(--panel);color:var(--text);border:1px solid var(--line);padding:0 12px;border-radius:10px}
.intro-keyboard{font-size:.7rem;color:var(--muted);margin:18px 0}
.intro-notes{border-top:1px solid var(--line);overflow-wrap:anywhere}
.intro-notes p{max-width:95ch;margin:0 0 20px}
body.intro-presenting .sidebar,body.intro-presenting .topbar,body.intro-presenting .footer,body.intro-presenting .ambient,body.intro-presenting .screen-shade{display:none!important}
body.intro-presenting .app-shell{display:block}
body.intro-presenting .main-column{margin-left:0;width:100%}
body.intro-presenting .main-content{max-width:1420px;margin:0 auto;padding:24px clamp(18px,4vw,70px)}
body.intro-presenting .intro-course{max-width:none}
body.intro-presenting .intro-sections,body.intro-presenting .intro-progress,body.intro-presenting .intro-notes{display:none}
body.intro-presenting .intro-slide{min-height:62vh}
@media(max-width:1000px){.intro-chart-layout{grid-template-columns:1fr}.intro-chart-layout aside{font-size:.9rem}.intro-image-layout{gap:20px}.intro-columns>section{padding:20px}}
@media(max-width:640px){.intro-toolbar{align-items:start}.intro-toolbar .btn{font-size:.75rem;padding:10px}.intro-toolbar p{font-size:1rem}.intro-eyebrow{font-size:.6rem}.intro-sections{gap:7px}.intro-sections a{font-size:.7rem;padding:11px 9px}.intro-progress{flex-wrap:wrap;gap:8px}.intro-progress progress{max-width:none}.intro-progress .intro-text-button{margin-left:auto}.intro-slide{border-radius:16px;padding:22px}.intro-slide-label{font-size:.67rem;gap:8px}.intro-columns,.intro-image-layout,.intro-sources{grid-template-columns:1fr}.intro-image-layout img{max-height:280px}.intro-rows>div{grid-template-columns:1fr;gap:7px;padding:17px 0}.intro-rows dt,.intro-rows dd,.intro-columns p{font-size:.98rem}.intro-navigation{grid-template-columns:1fr 1fr;gap:12px}.intro-navigation>div{grid-column:1/-1;grid-row:1;max-width:none}.intro-navigation .btn{width:100%}.intro-navigation>a{font-size:.78rem}.intro-numbers{gap:8px}.intro-numbers span{font-size:1.5rem}.intro-chart svg{min-width:400px}.intro-chart{overflow-x:auto}.intro-tool span{max-width:none}.intro-keyboard{line-height:1.5}}