/* Infi shares the existing learning room's typography, palette and motion preferences. */
:root { --infi-width: 366px; --infi-orange: #ffb33e; }
#infi-panel, #infi-shade { box-sizing: border-box; }
#infi-panel * { box-sizing: border-box; }
#infi-panel [hidden], #infi-shade[hidden] { display: none !important; }
#infi-panel { position: fixed; inset: 0 0 0 auto; z-index: 85; width: var(--infi-width); height: 100dvh; display: flex; flex-direction: column; background: var(--surface); color: var(--ink); border-left: 1px solid var(--line); font: 14px/1.6 'DM Sans', sans-serif; }
#infi-panel button, #infi-panel textarea { font: inherit; }
#infi-panel button { cursor: pointer; color: inherit; }
#infi-panel button:focus-visible { outline: 3px solid var(--orange); outline-offset: 3px; }
.infi-header { padding: 22px 22px 17px; display: flex; align-items: center; gap: 12px; border-bottom: 1px solid var(--line); }
.infi-header h2 { font: 700 23px/1.2 'Bricolage Grotesque', sans-serif; margin: 0 0 3px; letter-spacing: -.5px; }
.infi-header p { margin: 0; color: var(--muted); font-size: 11px; }
.infi-header .infi-avatar { width: 48px; height: 48px; flex-shrink: 0; }
.infi-icon-button { border: 0; background: transparent; border-radius: 10px; min-width: 38px; height: 38px; display: grid; place-items: center; }
.infi-icon-button:hover { background: var(--bg2); }
#infi-close { margin-left: auto; }
.infi-context { margin: 17px 22px 0; padding: 10px 13px; border: 1px solid var(--line); border-radius: 11px; display: flex; align-items: center; gap: 10px; background: var(--surface2); }
.infi-context svg { flex-shrink: 0; }
.infi-context span { font-size: 10px; color: var(--muted); display: block; }
.infi-context strong { font-size: 12px; font-weight: 600; display: block; }
.infi-conversation { overflow-y: auto; overscroll-behavior: contain; flex: 1; min-height: 0; padding: 16px 22px 22px; scrollbar-width: thin; }
.infi-welcome { text-align: center; padding: 12px 8px 20px; }
#infi-wave { display: block; border: 0; background: none; padding: 0 16px; margin: 0 auto 8px; border-radius: 18px; }
#infi-wave .infi-avatar { width: 120px; height: 120px; display: block; overflow: visible; }
.infi-welcome h3 { font: 650 25px/1.2 'Bricolage Grotesque', sans-serif; letter-spacing: -.7px; margin: 0 0 10px; }
.infi-welcome p { max-width: 245px; margin: 0 auto; color: var(--muted); font-size: 13px; }
.infi-wave-caption { display: block; color: var(--muted); font-size: 10px; margin-top: -2px; }
.infi-message { margin: 0 0 16px; max-width: 100%; overflow-wrap: anywhere; }
.infi-message p { margin: 0 0 9px; }
.infi-message p:last-child { margin-bottom: 0; }
.infi-message-label { display: block; font-size: 10px; font-weight: 700; margin-bottom: 6px; color: var(--muted); }
.infi-message.user { background: var(--bg2); border-radius: 15px 15px 3px 15px; padding: 12px 15px; margin-left: 32px; }
.infi-message.assistant { padding: 0 1px; }
.infi-message .infi-equation { font: 600 23px/1.5 'Bricolage Grotesque', sans-serif; letter-spacing: .5px; padding: 13px; border: 1px solid var(--line); border-radius: 12px; text-align: center; margin: 13px 0; }
.infi-equation em { color: var(--orange-deep); font-style: normal; }
.infi-suggestions { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; margin-top: 16px; }
.infi-suggestion, .infi-action { text-align: left; border: 1px solid var(--line2); border-radius: 10px; background: var(--surface); padding: 10px 13px; line-height: 1.4 !important; font-size: 12px !important; min-height: 38px; }
.infi-suggestion:hover, .infi-action:hover { background: var(--bg2); border-color: var(--green); }
.infi-action { margin-top: 10px; font-weight: 600 !important; }
.infi-compose-area { padding: 15px 20px 12px; border-top: 1px solid var(--line); background: var(--surface); }
.infi-composer { border: 1px solid var(--line2); border-radius: 15px; background: var(--surface2); padding: 12px; }
.infi-composer:focus-within { border-color: var(--green-deep); outline: 2px solid var(--line); }
.infi-composer textarea { display: block; resize: none; width: 100%; min-height: 45px; max-height: 100px; border: 0; background: none; color: var(--ink); font-size: 13px !important; line-height: 1.5; outline: none; padding: 0; }
.infi-composer textarea::placeholder { color: var(--muted); }
.infi-compose-bottom { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.infi-compose-bottom span { color: var(--muted); font-size: 10px; }
#infi-panel #infi-send { width: 34px; height: 34px; border: 0; border-radius: 10px; background: var(--ink); color: var(--surface); display: grid; place-items: center; }
#infi-send:disabled { opacity: .4; cursor: default; }
.infi-footnote { display: flex; justify-content: space-between; gap: 6px; align-items: center; margin-top: 10px; color: var(--muted); font-size: 9px; }
#infi-motion { font-size: 9px !important; background: none; border: 0; border-bottom: 1px solid var(--line2); padding: 2px 0; color: var(--muted) !important; }
#infi-shade { position: fixed; inset: 0; z-index: 84; border: 0; background: #14291f38; }
@media(min-width:1100px) {
 body.infi-open .wrap { margin-left: 250px; margin-right: var(--infi-width); max-width: none; width: auto; padding: 32px 34px 60px; transform: none; }
 body.infi-open > header { margin-right: var(--infi-width); }
 body.infi-open > header .hrow { padding-inline: 28px; gap: 12px; }
 body.infi-open > header .design-room-title, body.infi-open > header .tour-launch span { display: none; }
 body.infi-open .player-col { max-width: 800px; }
 body.infi-open.bm-focus .wrap { margin-left: 0 !important; margin-right: var(--infi-width) !important; width: auto; }
 body.infi-open.bm-focus > header { width: auto; margin-left: 0; }
}
@media(min-width:1100px) and (max-width:1299px) {
 :root { --infi-width: 334px; }
 body.infi-open #design-sidebar { width: 218px; padding-inline: 20px; }
 body.infi-open .wrap { margin-left: 218px; padding-inline: 24px; }
 body.infi-open > header { margin-left: 218px; }
}
@media(max-width:1099px) { #infi-panel { width: min(400px, 100%); box-shadow: -10px 0 40px #14291f12; } }
@media(max-width:480px) { #infi-panel { width: 100%; } .infi-header { padding-block: 15px; } .infi-welcome { padding-top: 0; } }
@media(prefers-reduced-motion:reduce) { .infi-avatar * { animation: none !important; } }
.design-reduced-motion .infi-avatar *, .infi-still .infi-avatar * { animation: none !important; }
@media print { #infi-panel, #infi-shade { display: none !important; } body.infi-open .wrap { margin: 0 !important; } }
.infi-modal-open { overflow: hidden; }
.infi-help-row { display: flex; justify-content: flex-end; margin: -4px 0 15px; }
.infi-help-row button { display: inline-flex; align-items: center; gap: 9px; border: 1px solid var(--line2); background: var(--surface); color: var(--ink); border-radius: 11px; padding: 6px 13px 6px 7px; font: 600 12px 'DM Sans',sans-serif; cursor: pointer; }
.infi-help-row .infi-avatar { width: 33px; height: 33px; }
.infi-help-row button:focus-visible { outline: 3px solid var(--orange); outline-offset: 3px; }
#infi-panel .infi-welcome { padding: 0 2px 24px; }
#infi-wave .infi-avatar { width: 108px; height: 108px; }
.infi-header .infi-ground, .infi-help-row .infi-ground { display: none; }
.infi-context small { display: block; font-size: 10px; color: var(--muted); }
.infi-section-label { font-size: 10px; font-weight: 600; color: var(--muted); letter-spacing: .06em; margin: 0 0 10px; }
#infi-topics { margin-top: 0; }
#infi-topics .infi-suggestion { width: 100%; }
#infi-prerequisites { margin: 12px 0 0; font-size: 11px !important; border: 0; padding-left: 0; text-decoration: underline; text-underline-offset: 3px; background: none; }
#infi-home { margin-bottom: 18px; }
.infi-source { border: 1px solid var(--line2); border-radius: 13px; margin: 0 0 12px; background: var(--surface2); overflow: hidden; }
.infi-source summary { cursor: pointer; position: relative; list-style: none; padding: 14px 35px 14px 15px; }
.infi-source summary::-webkit-details-marker { display: none; }
.infi-source summary::after { content: '+'; position: absolute; right: 15px; top: 19px; font-size: 18px; }
.infi-source[open] summary::after { content: '−'; }
.infi-source summary small { display: block; font-size: 9px; letter-spacing: .06em; color: var(--muted); margin-bottom: 3px; }
.infi-source summary strong { font: 650 17px/1.3 'Bricolage Grotesque',sans-serif; display: block; }
.infi-source-content { padding: 0 15px 15px; font-size: 13px; overflow-wrap: anywhere; }
.infi-source-content p { margin: 0 0 12px; }
.infi-source-content p:last-child { margin-bottom: 0; }
.infi-source-math { max-width: 100%; overflow-x: auto; padding: 7px 0; }
.infi-source-math .katex-display { margin: 6px 0; }
.infi-source-math .katex-display>.katex { text-align: left; }
.infi-figure { max-width: 100%; margin: 14px 0; padding: 5px; border-radius: 8px; background: #fff; color: #234c40; }
.infi-figure svg { max-width: 100%; height: auto; display: block; }
.infi-caption { font-size: 11px; color: var(--muted); }
.infi-source-origin { padding-top: 12px; margin-top: 12px !important; border-top: 1px solid var(--line); color: var(--muted); font-size: 10px; }
.infi-source .infi-text-button { font-size: 11px !important; text-align: left; }
#infi-next { margin-top: 20px; padding: 16px 0 0; border-top: 1px solid var(--line); }
#infi-coaching { font-size: 13px; margin: 0 0 15px; }
#infi-panel .infi-return { width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 12px 15px; background: var(--ink); color: var(--surface); border: 0; border-radius: 11px; font-weight: 600; }
.infi-text-button { border: 0; background: none; font-size: 11px !important; text-decoration: underline; text-underline-offset: 3px; padding: 10px 0; }
#infi-more { display: block; margin: 4px auto 0; }
.infi-input-label { display: block; font-size: 11px; font-weight: 600; margin: 0 0 7px; }
.infi-composer textarea { min-height: 28px; }
.infi-compose-area>.infi-return { margin-bottom: 12px; }
.infi-has-support .infi-welcome { display: none; }
#infi-guide { margin: 0 0 22px; padding: 15px; border: 1px solid var(--line); border-radius: 13px; background: var(--surface2); }
.infi-question { font-weight: 600; margin: 0 0 13px; line-height: 1.5; }
.infi-guide-choices { display: flex; flex-direction: column; gap: 9px; align-items: stretch; }
.infi-guide-choices .infi-text-button { text-align: left; padding: 5px 0; }
.infi-guide-selected { margin: 0; color: var(--muted); font-size: 11px; }
.infi-guide-feedback { margin: 0; font-size: 13px; }
#infi-source-note { font-size: 11px; color: var(--muted); margin: 0 0 12px; }
#infi-ai-notice { color: var(--muted); font-size: 10px; line-height: 1.4; margin: 8px 0; }
#infi-clear { font-size: 10px !important; border: 0; padding: 2px; background: transparent; text-decoration: underline; }
#infi-status { flex: 1; }
#infi-panel [aria-busy=true] { cursor: progress; }
@media(max-width:480px) { .infi-compose-area { padding-bottom: max(12px,env(safe-area-inset-bottom)); } }
@media print { .infi-help-row { display: none !important; } }