/* Amplexo: a calm, playful learning space. All assets are served locally. */
:root {
    color-scheme: light;
    --red: #c62d3b; --red-hover: #ae2130; --red-soft: #fff0ef;
    --ink: #283047; --muted: #656d7d; --paper: #f8f9fc; --surface: #fff;
    --line: #e8ebf1; --soft: #f1f3f8; --shadow: 0 12px 40px #24325308;
    --radius: 22px; --sidebar-width: 230px;
    font-family: "Segoe UI Variable", "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 15px; font-synthesis: none;
}
[data-theme="dark"] {
    color-scheme: dark;
    --red: #ff8790; --red-hover: #ffa9af; --red-soft: #39222b;
    --ink: #edf0f8; --muted: #b0b8cb; --paper: #141923; --surface: #1c2331;
    --line: #30394a; --soft: #242d3e; --shadow: 0 12px 40px #0002;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
.nojs-nav { display: flex; flex-wrap: wrap; gap: 14px; padding: 15px 25px; background: var(--surface); border-bottom: 1px solid var(--line); }
.nojs-nav a { min-height: 44px; display: inline-flex; align-items: center; color: var(--red); font-weight: 700; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; background: var(--paper); color: var(--ink); line-height: 1.6; }
body.menu-open { overflow: hidden; }
button, input, textarea { font: inherit; }
button, a, input, textarea, summary { -webkit-tap-highlight-color: transparent; }
button, summary { cursor: pointer; }
button { color: inherit; }
a { color: inherit; text-decoration: none; }
img, svg { vertical-align: middle; }
img { max-width: 100%; }
button, a { touch-action: manipulation; }
button:disabled { cursor: wait; opacity: .65; transform: none !important; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, summary:focus-visible, video:focus-visible, audio:focus-visible {
    outline: 3px solid var(--red); outline-offset: 4px;
}
::selection { background: #ffdadd; color: #71252e; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { font-family: "Trebuchet MS", "Segoe UI", sans-serif; line-height: 1.22; letter-spacing: -.035em; overflow-wrap: anywhere; }
h1 { font-size: clamp(1.75rem, 2.45vw, 2.45rem); }
h2 { font-size: clamp(1.3rem, 1.75vw, 1.7rem); }
h3 { font-size: 1.25rem; }
p { overflow-wrap: anywhere; }
.icon { width: 22px; height: 22px; flex: 0 0 auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: 16px; top: -100px; z-index: 100; background: var(--surface); color: var(--red); padding: 12px 20px; border: 2px solid var(--red); border-radius: 12px; }
.skip-link:focus { top: 16px; }
.button {
    min-height: 46px; display: inline-flex; gap: 10px; align-items: center; justify-content: center;
    background: var(--red); color: white; border: 1px solid transparent; padding: 12px 20px;
    border-radius: 12px; font-weight: 700; font-size: .94rem; line-height: 1.35;
    transition: background .2s, transform .2s, box-shadow .2s; text-align: center;
}
.button:hover { background: var(--red-hover); transform: translateY(-2px); box-shadow: 0 5px 14px #bc2d351a; }
.button .icon { width: 19px; height: 19px; }
.button-small { padding: 10px 17px; min-height: 44px; }
.button-soft { background: var(--red-soft); color: var(--red); }
.button-soft:hover { background: var(--red-soft); box-shadow: inset 0 0 0 1px var(--red); }
.button-white { background: white; color: #bb2939; box-shadow: 0 6px 20px #701b2720; }
.button-white:hover { background: #fff6ed; color: #9b1928; }
.button-ghost { background: var(--surface); border-color: var(--line); color: var(--muted); }
.button-ghost:hover { background: var(--soft); color: var(--ink); }
[data-theme="dark"] .button:not(.button-soft):not(.button-white):not(.button-ghost) { color: #301219; }
.icon-button {
    width: 44px; height: 44px; display: inline-grid; place-items: center; flex-shrink: 0;
    border: 1px solid var(--line); border-radius: 13px; background: var(--surface); color: var(--muted);
    transition: color .2s, background .2s, transform .2s;
}
.icon-button:hover { color: var(--red); background: var(--red-soft); transform: translateY(-2px); }
.icon-button[aria-pressed="true"] { background: var(--red-soft); color: var(--red); border-color: var(--red); }
.text-link { display: inline-flex; align-items: center; gap: 9px; color: var(--red); font-size: .9rem; font-weight: 700; min-height: 44px; }
.text-link .icon { width: 18px; transition: transform .2s; }
.text-link:hover .icon { transform: translateX(4px); }
.back-link { display: inline-flex; align-items: center; gap: 9px; color: var(--muted); min-height: 44px; margin-bottom: 22px; font-size: .93rem; }
.back-link:hover { color: var(--red); }
.eyebrow { display: block; font-size: .68rem; font-weight: 800; letter-spacing: .11em; color: var(--muted); margin-bottom: 9px; }
.text-red { color: var(--red); }
.muted, .fine-print { color: var(--muted); }
.fine-print { font-size: .85rem; max-width: 450px; margin-top: 14px; }
.app-shell { min-height: 100vh; }
.sidebar {
    position: fixed; inset: 0 auto 0 0; width: var(--sidebar-width); background: var(--surface);
    border-right: 1px solid var(--line); padding: 32px 20px 20px; z-index: 35;
    display: flex; flex-direction: column; overflow-y: auto;
}
.brand { display: inline-flex; align-items: center; gap: 10px; width: fit-content; }
.brand img { width: 40px; height: 40px; object-fit: contain; flex: 0 0 auto; }
.brand > span { font: 800 29px/1 "Trebuchet MS", sans-serif; letter-spacing: -1.4px; color: var(--ink); }
.brand-dot { color: var(--red); }
.brand small { display: block; font: 700 7px/1.6 "Segoe UI", sans-serif; letter-spacing: 1.6px; color: var(--muted); margin-top: 6px; }
.nav-caption { margin: 47px 10px 15px; font-size: .58rem; font-weight: 800; letter-spacing: .095em; color: var(--muted); }
.main-nav { display: grid; gap: 7px; }
.nav-link { display: flex; align-items: center; gap: 13px; padding: 13px 15px; border-radius: 12px; color: var(--muted); font-size: .92rem; font-weight: 600; min-height: 50px; transition: background .2s, color .2s; }
.nav-link:hover { color: var(--red); background: var(--soft); }
.nav-link.is-active { color: var(--red); background: var(--red-soft); font-weight: 750; }
.nav-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--red); margin-left: auto; }
.sidebar-bottom { margin-top: auto; padding-top: 50px; }
.sidebar-note { background: var(--paper); border-radius: 18px; padding: 18px; border: 1px solid var(--line); }
.note-symbol { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; color: var(--red); background: var(--red-soft); margin-bottom: 12px; }
.sidebar-note p { font-size: .85rem; line-height: 1.65; font-weight: 600; }
.sidebar-note a { display: flex; align-items: center; justify-content: space-between; gap: 6px; font-size: .77rem; color: var(--red); font-weight: 700; margin-top: 14px; min-height: 32px; }
.sidebar-note a .icon { width: 16px; }
.school-label { display: flex; align-items: center; gap: 7px; color: var(--muted); font-size: .62rem; margin: 21px 0 0; white-space: nowrap; }
.school-label .icon { width: 16px; }
.workspace { margin-left: var(--sidebar-width); min-width: 0; }
.topbar {
    min-height: 87px; padding: 17px 36px; border-bottom: 1px solid var(--line); background: var(--surface);
    display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.topbar-left, .topbar-actions { display: flex; align-items: center; gap: 12px; min-width: 0; }
.topbar-title { font-weight: 750; font-size: 1rem; }
.topbar-caption { font-size: .77rem; color: var(--muted); border-left: 1px solid var(--line); padding-left: 16px; margin-left: 5px; }
.topbar-divider { height: 25px; border-left: 1px solid var(--line); margin: 0 5px; }
.account-link { display: flex; align-items: center; gap: 10px; font-weight: 650; }
.account-name { max-width: 120px; overflow: hidden; text-overflow: ellipsis; }
.avatar { display: grid; place-items: center; width: 44px; height: 44px; background: var(--red-soft); color: var(--red); border-radius: 15px; font-weight: 800; }
.menu-toggle, .sidebar-close, .menu-backdrop { display: none; }
.page-content { max-width: 1370px; margin: 0 auto; padding: 35px 36px 15px; min-height: calc(100vh - 180px); }
.page-content:focus { outline: none; }
.welcome-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 26px; }
.welcome-row p, .lesson-heading > p { color: var(--muted); margin-top: 10px; font-size: .94rem; }
.welcome-row .eyebrow { color: var(--red); }
.hello-star { color: #d9982d; display: inline-block; animation: star-turn 1s ease-out both; }
.grade-pill { display: flex; align-items: center; gap: 8px; flex-shrink: 0; color: var(--muted); padding: 8px 12px; border: 1px solid var(--line); background: var(--surface); border-radius: 10px; font-size: .77rem; }
.grade-pill .icon { width: 16px; }
.discovery-hero {
    position: relative; isolation: isolate; display: grid; grid-template-columns: 1.05fr 1fr; align-items: center;
    min-height: 338px; background: #ca303d; border-radius: 24px; padding: 33px 38px; color: white;
    box-shadow: 0 13px 28px #b5283514; overflow: hidden;
}
.discovery-hero::after { content: ""; position: absolute; z-index: -1; width: 430px; height: 430px; border: 70px solid #fff; opacity: .045; border-radius: 50%; right: -130px; top: -230px; }
.hero-copy { position: relative; z-index: 2; }
.hero-tag { display: inline-flex; align-items: center; gap: 8px; color: #fff5e9; font-size: .62rem; letter-spacing: .065em; font-weight: 750; margin-bottom: 16px; }
.hero-tag > span { font-size: 16px; }
.hero-copy h2 { font-size: clamp(1.8rem, 2.85vw, 2.8rem); line-height: 1.16; letter-spacing: -.04em; max-width: 540px; }
.hero-copy em, .auth-story em { display: inline; font-style: normal; color: #ffdd9c; }
.hero-copy p { max-width: 370px; font-size: .92rem; color: #fff4f3; line-height: 1.75; margin: 16px 0 23px; }
.hero-footnote { display: flex; align-items: center; gap: 7px; color: #fff4eb; font-size: .68rem; margin-top: 17px; }
.hero-footnote .icon { width: 15px; height: 15px; }
.hero-art { position: relative; align-self: stretch; display: grid; place-items: center; min-width: 0; min-height: 285px; }
.hero-art > img { position: absolute; width: 119%; max-width: 495px; height: auto; margin-left: -5%; animation: gentle-float 6s ease-in-out 3; }
.floating-label { position: absolute; display: inline-flex; align-items: center; gap: 7px; border-radius: 9px; background: #fff; box-shadow: 0 8px 16px #6e142519; color: #654351; padding: 8px 12px; font-size: .64rem; font-weight: 700; white-space: nowrap; }
.floating-label .icon { width: 15px; height: 15px; }
.label-top { right: -8px; top: 10px; transform: rotate(7deg); animation: label-in .7s .2s both; }
.label-bottom { bottom: 16px; left: 12px; transform: rotate(-6deg); color: #356d5a; }
.section-heading { display: flex; justify-content: space-between; align-items: center; gap: 18px; margin-bottom: 20px; }
.subjects-section, .catalog-section { margin-top: 35px; }
.subjects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(155px, 1fr)); gap: 12px; }
.subject-link { display: flex; align-items: center; gap: 10px; background: var(--surface); border: 1px solid var(--line); padding: 12px; border-radius: 14px; font-size: .85rem; font-weight: 700; transition: transform .2s, box-shadow .2s; min-width: 0; }
.subject-link > span:nth-child(2) { overflow-wrap: anywhere; }
.subject-link > .icon { width: 15px; margin-left: auto; color: var(--muted); }
.subject-link:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.subject-link.is-selected { border-color: var(--red); box-shadow: 0 0 0 1px var(--red); }
.subject-icon, .tip-icon { display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: 13px; flex-shrink: 0; background: var(--tile-bg); color: var(--tile-ink); }
.theme-coral { --tile-bg: #ffebe5; --tile-ink: #b84445; }
.theme-sky { --tile-bg: #e3effd; --tile-ink: #356da6; }
.theme-mint { --tile-bg: #def1e9; --tile-ink: #34735d; }
.theme-lilac { --tile-bg: #eee7fc; --tile-ink: #7855aa; }
.theme-amber { --tile-bg: #fff1d4; --tile-ink: #926422; }
.catalog-tools { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-bottom: 22px; }
.search-form { display: flex; align-items: center; gap: 10px; min-width: 0; width: min(100%, 475px); border: 1px solid var(--line); border-radius: 13px; padding: 5px 5px 5px 15px; background: var(--surface); }
.search-form > .icon { color: var(--muted); width: 20px; }
.search-form input { border: 0; background: transparent; color: var(--ink); width: 100%; min-width: 0; padding: 9px 1px; font-size: .85rem; }
input::placeholder, textarea::placeholder { color: var(--muted); opacity: 1; }
.search-form:focus-within { box-shadow: 0 0 0 2px var(--red); }
.search-form input:focus-visible { outline: none; }
.results-summary { font-size: .79rem; color: var(--muted); }
.courses-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.course-card { border: 1px solid var(--line); border-radius: 19px; background: var(--surface); overflow: hidden; box-shadow: 0 4px 10px #28304702; transition: transform .25s, box-shadow .25s; min-width: 0; }
.course-card:hover { transform: translateY(-5px); box-shadow: 0 16px 28px #2330460b; }
.course-card-link { display: flex; flex-direction: column; height: 100%; }
.course-cover { position: relative; height: 163px; display: grid; place-items: center; background: var(--tile-bg); color: var(--tile-ink); overflow: hidden; }
.cover-orbit { position: absolute; height: 210px; width: 210px; border: 1px solid currentColor; border-radius: 50%; opacity: .15; top: -48px; right: -32px; }
.cover-orbit::after { content: ""; position: absolute; inset: 25px; border: 1px dashed currentColor; border-radius: 50%; }
.cover-glyph { display: grid; place-items: center; width: 74px; height: 74px; border: 2px solid #ffffffad; border-radius: 23px; background: #ffffff75; transform: rotate(-9deg); box-shadow: 4px 7px 0 #ffffff55; transition: transform .4s; }
.cover-glyph .icon { width: 43px; height: 43px; stroke-width: 1.4; }
.course-card:hover .cover-glyph { transform: rotate(4deg) translateY(-4px); }
.cover-shape { position: absolute; width: 35px; height: 35px; border-radius: 10px; border: 8px solid currentColor; opacity: .12; }
.shape-one { bottom: 28px; left: 28px; transform: rotate(24deg); }
.shape-two { right: 30px; top: 30px; border-radius: 50%; width: 22px; height: 22px; border-width: 6px; }
.cover-spark { position: absolute; top: 20px; left: 38px; font-size: 22px; opacity: .5; }
.cover-caption { position: absolute; bottom: 10px; right: 13px; font-weight: 700; font-size: .58rem; letter-spacing: .06em; max-width: 80%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.course-card-body { padding: 23px; display: flex; flex: 1; flex-direction: column; }
.course-card-body .eyebrow { font-size: .61rem; margin-bottom: 9px; }
.course-card-body h3 { line-height: 1.4; font-size: 1.15rem; }
.course-card-body > p { font-size: .83rem; color: var(--muted); line-height: 1.75; margin-top: 9px; margin-bottom: 22px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.course-card-footer { display: flex; align-items: center; justify-content: space-between; margin-top: auto; gap: 8px; padding-top: 16px; border-top: 1px solid var(--line); font-weight: 700; font-size: .82rem; }
.category-breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 9px; margin-bottom: 18px; color: var(--muted); font-size: .76rem; font-weight: 700; }
.category-breadcrumb a { color: var(--red); }
.category-breadcrumb [aria-current="page"] { color: var(--ink); }
.category-hero { position: relative; isolation: isolate; overflow: hidden; min-height: 250px; display: grid; grid-template-columns: minmax(0, 1fr) 170px; align-items: center; gap: 24px; padding: clamp(30px, 5vw, 58px); border-radius: 28px; color: #fff; background: linear-gradient(125deg, #85000a, #bd1f31 55%, #ed6758); box-shadow: 0 20px 50px #8b14251f; }
.category-hero::before, .category-hero::after { content: ""; position: absolute; z-index: -1; border: 2px solid #ffffff35; border-radius: 50%; }
.category-hero::before { width: 330px; height: 330px; right: -80px; top: -130px; }
.category-hero::after { width: 190px; height: 190px; right: 15px; top: -58px; }
.category-hero .eyebrow { color: #ffd9c7; }
.category-hero h1 { max-width: 780px; margin-top: 7px; font-size: clamp(2.2rem, 5vw, 4.3rem); }
.category-hero p { max-width: 650px; margin-top: 16px; color: #fff0ed; }
.category-hero-orbit { display: grid; place-items: center; width: 130px; height: 130px; border: 1px solid #ffffff55; border-radius: 42% 58% 55% 45%; background: #ffffff18; animation: float 5s ease-in-out infinite; }
.category-hero-orbit .icon { width: 67px; height: 67px; color: #ffd499; }
.category-content-section { margin-top: clamp(30px, 5vw, 54px); }
.category-browser-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; }
.category-browser-card { min-width: 0; border: 1px solid var(--line); border-radius: 20px; background: var(--surface); box-shadow: 0 8px 24px #28304707; transition: transform .2s, box-shadow .2s; }
.category-browser-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.category-browser-card > a { display: grid; grid-template-columns: 58px minmax(0, 1fr) 38px; align-items: center; gap: 13px; min-height: 118px; padding: 19px; }
.category-browser-icon { display: grid; place-items: center; width: 58px; height: 58px; border-radius: 17px; background: var(--soft); color: var(--red); }
.category-browser-icon .icon { width: 29px; height: 29px; }
.category-browser-card a > span:nth-child(2) { display: grid; min-width: 0; gap: 3px; }
.category-browser-card small { color: var(--red); font-size: .55rem; font-weight: 850; letter-spacing: .1em; }
.category-browser-card strong { overflow: hidden; font-size: 1rem; text-overflow: ellipsis; white-space: nowrap; }
.category-browser-card em { color: var(--muted); font-size: .7rem; font-style: normal; }
.editor-preview-notice { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; padding: 13px 16px; border: 1px solid #dda52e70; border-radius: 14px; background: #fff5d6; color: #684a0b; }
.editor-preview-notice > .icon { width: 22px; height: 22px; }
.editor-preview-notice span { display: grid; gap: 2px; }
.editor-preview-notice small { font-size: .7rem; }
[data-theme="dark"] .editor-preview-notice { background: #493810; color: #ffe8a4; }
.round-arrow { display: grid; place-items: center; background: var(--red-soft); color: var(--red); width: 32px; height: 32px; border-radius: 50%; }
.round-arrow .icon { width: 17px; }
.empty-state { grid-column: 1 / -1; text-align: center; padding: 34px 24px; background: var(--surface); border: 1px solid var(--line); border-radius: 19px; }
.empty-orbit { position: relative; display: grid; place-items: center; width: 78px; height: 78px; margin: 0 auto 18px; border-radius: 26px; transform: rotate(-7deg); background: var(--red-soft); color: var(--red); }
.empty-orbit > .icon { width: 36px; height: 36px; }
.empty-orbit > span { position: absolute; right: -10px; top: -10px; color: #ba802c; font-size: 27px; }
.empty-state p { max-width: 450px; color: var(--muted); margin: 10px auto 20px; font-size: .9rem; }
.empty-state h3 { font-size: 1.35rem; }
.discovery-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 28px 0 14px; }
.discovery-strip > div { display: flex; gap: 12px; align-items: center; padding: 7px 3px; }
.discovery-strip strong, .discovery-strip small { display: block; }
.discovery-strip strong { font-size: .85rem; font-weight: 700; }
.discovery-strip small { font-size: .74rem; color: var(--muted); margin-top: 2px; }
.page-footer { max-width: 1370px; margin: auto; padding: 25px 36px 30px; display: flex; justify-content: space-between; gap: 14px; font-size: .68rem; color: var(--muted); }
.page-footer span:last-child { display: inline-flex; align-items: center; gap: 6px; }
.page-footer .icon { width: 14px; height: 14px; color: #47916f; }
.panel { border: 1px solid var(--line); background: var(--surface); border-radius: var(--radius); padding: 27px; }
.panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 15px; margin-bottom: 20px; }
.count-pill { display: grid; place-items: center; width: 35px; height: 35px; border-radius: 10px; background: var(--soft); color: var(--muted); font-size: .85rem; }
.course-intro { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center; margin-bottom: 35px; }
.course-intro h1 { font-size: clamp(2rem, 3vw, 3.1rem); }
.course-intro .lead { color: var(--muted); margin: 15px 0; line-height: 1.85; font-size: .96rem; }
.course-intro-art .course-cover { height: 300px; border-radius: 23px; }
.course-intro-art .cover-glyph { width: 115px; height: 115px; border-radius: 35px; }
.course-intro-art .cover-glyph .icon { width: 65px; height: 65px; }
.course-intro-art .cover-orbit { width: 380px; height: 380px; }
.course-intro-art .cover-caption { bottom: 17px; right: 20px; font-size: .7rem; }
.course-meta { display: flex; flex-wrap: wrap; gap: 15px; margin: 20px 0; color: var(--muted); font-size: .85rem; }
.course-meta span { display: flex; align-items: center; gap: 6px; }
.course-meta .icon { width: 17px; }
.learning-layout { display: grid; grid-template-columns: minmax(0, 1fr) 270px; gap: 24px; align-items: start; }
.lesson-list { list-style: none; margin: 0; padding: 0; }
.lesson-list li + li { border-top: 1px solid var(--line); }
.lesson-row { display: flex; align-items: center; gap: 15px; padding: 17px 0; min-height: 86px; }
.lesson-number { display: grid; place-items: center; width: 39px; height: 39px; background: var(--soft); color: var(--muted); border-radius: 12px; font: 700 .85rem "Trebuchet MS", sans-serif; flex-shrink: 0; transition: background .2s, color .2s; }
.lesson-row-copy { flex: 1; min-width: 0; }
.lesson-row-copy strong { display: block; font-size: .92rem; line-height: 1.5; overflow-wrap: anywhere; }
.lesson-row-copy small { display: block; font-size: .75rem; color: var(--muted); margin-top: 4px; }
.lesson-play { color: var(--red); display: grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; background: var(--red-soft); flex-shrink: 0; }
.lesson-play .icon { width: 16px; height: 16px; }
.lesson-row:hover .lesson-number { background: var(--red-soft); color: var(--red); }
.study-aside { display: grid; gap: 20px; }
.encouragement-card { background: var(--red-soft); border-radius: 21px; padding: 25px; }
.big-spark { display: block; font-size: 38px; color: var(--red); margin-bottom: 14px; }
.encouragement-card h2 { font-size: 1.5rem; line-height: 1.35; }
.encouragement-card p { color: var(--muted); font-size: .87rem; line-height: 1.8; margin: 15px 0; }
.quiet-note { display: flex; align-items: flex-start; gap: 10px; color: var(--muted); font-size: .8rem; padding: 5px 9px; line-height: 1.8; }
.quiet-note > .icon { color: #51816b; width: 19px; }
.lesson-heading { margin-bottom: 25px; }
.player-layout { grid-template-columns: minmax(0, 1fr) 250px; gap: 20px; }
.player-card { min-width: 0; border: 1px solid var(--line); border-radius: 20px; overflow: hidden; background: var(--surface); }
.media-stage { background: #171a26; }
.media-stage video { width: 100%; aspect-ratio: 16 / 9; display: block; background: #171a26; }
.audio-stage { min-height: 225px; padding: 35px; display: grid; place-items: center; gap: 25px; }
.audio-stage > span { display: grid; place-items: center; width: 70px; height: 70px; border-radius: 22px; background: #3b2532; color: #ff8996; }
.audio-stage > span .icon { width: 40px; height: 40px; }
.audio-stage audio { width: 100%; }
.player-info { padding: 26px; }
.player-info h2 { font-size: 1.2rem; }
.player-info .section-heading { margin-bottom: 15px; }
.progress-label { font-weight: 800; font-size: 1.1rem; color: var(--red); }
progress { display: block; appearance: none; border: 0; width: 100%; height: 8px; background: var(--soft); color: var(--red); border-radius: 20px; overflow: hidden; }
progress::-webkit-progress-bar { background: var(--soft); border-radius: 20px; }
progress::-webkit-progress-value { background: var(--red); border-radius: 20px; transition: width .6s ease; }
progress::-moz-progress-bar { background: var(--red); border-radius: 20px; }
.player-info > .muted { font-size: .84rem; margin-top: 15px; }
.progress-form { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.progress-form .button { flex: 1 1 auto; font-size: .8rem; padding: 12px; }
.completion-note { display: flex; align-items: flex-start; gap: 12px; color: #34634d; background: #e4f4e9; border-radius: 13px; padding: 16px; margin-top: 22px; font-size: .8rem; }
.completion-note strong { display: block; margin-bottom: 4px; }
.completion-note > .icon { color: #9b7018; }
.transcript { border-top: 1px solid var(--line); }
.transcript summary { display: flex; align-items: center; gap: 10px; padding: 20px 26px; font-weight: 700; font-size: .86rem; min-height: 64px; }
.transcript summary > span { margin-left: auto; font-size: .72rem; font-weight: 600; color: var(--red); }
.transcript summary > .icon { color: var(--red); width: 19px; }
.transcript > div { padding: 2px 26px 26px; white-space: pre-wrap; overflow-wrap: anywhere; color: var(--muted); font-size: 1rem; line-height: 1.9; }
.tutor-invite { background: var(--surface); border: 1px solid var(--line); border-radius: 20px; padding: 22px; }
.tutor-invite > img { display: block; background: #c93241; border-radius: 14px; width: 100%; height: auto; margin-bottom: 20px; }
.tutor-invite h2 { font-size: 1.35rem; }
.tutor-invite p { color: var(--muted); font-size: .83rem; line-height: 1.8; margin: 12px 0 20px; }
.tutor-invite .button { width: 100%; font-size: .78rem; padding: 12px; }
.dashboard-banner { background: var(--red-soft); border-radius: 23px; padding: 28px 35px; display: flex; align-items: center; justify-content: space-between; gap: 20px; overflow: hidden; }
.dashboard-banner h2 { font-size: clamp(1.9rem, 3vw, 2.8rem); }
.dashboard-banner p { color: var(--muted); font-size: .9rem; margin: 16px 0 8px; max-width: 370px; }
.dashboard-banner > img { width: 35%; height: auto; border-radius: 50%; background: #c8303d; animation: gentle-float 7s ease-in-out 2; }
.stats-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 17px; margin: 23px 0 35px; }
.stat-card { display: flex; align-items: center; gap: 17px; background: var(--surface); border: 1px solid var(--line); border-radius: 17px; padding: 22px; }
.stat-card strong { display: block; font: 800 1.8rem/1.2 "Trebuchet MS", sans-serif; }
.stat-card small { display: block; color: var(--muted); font-size: .74rem; margin-top: 7px; }
.pace-card strong { font-size: 1.2rem; }
.study-card .course-card-body { gap: 14px; }
.study-card .eyebrow { margin-bottom: -7px; }
.study-progress-label { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px; font-size: .73rem; color: var(--muted); }
.study-progress-label strong { color: var(--red); }
.study-card .button { margin-top: 8px; font-size: .84rem; }
.guide-intro { max-width: 660px; margin: 15px 0 33px; }
.guide-intro h1 { font-size: clamp(2.2rem, 4vw, 3.4rem); }
.guide-intro p { margin-top: 20px; color: var(--muted); font-size: 1rem; line-height: 1.85; }
.guide-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.guide-card { padding: 28px; background: var(--surface); border: 1px solid var(--line); border-radius: 20px; }
.guide-card-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 23px; }
.guide-number { font: 700 2.5rem/1 "Trebuchet MS", sans-serif; color: var(--muted); opacity: .5; }
.guide-card h2 { font-size: 1.45rem; }
.guide-card p { font-size: .93rem; color: var(--muted); line-height: 1.85; margin-top: 13px; }
.wellbeing-banner { display: flex; align-items: center; gap: 23px; background: #e0efe6; color: #305f4b; padding: 28px; border-radius: 20px; margin: 25px 0; }
.wellbeing-icon { display: grid; place-items: center; flex-shrink: 0; width: 65px; height: 65px; border-radius: 50%; background: #ffffff70; }
.wellbeing-icon .icon { width: 35px; height: 35px; }
.wellbeing-banner p { font-size: .92rem; margin-top: 9px; }
.guide-safety { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 35px; }
.guide-safety p { margin: 13px 0 20px; color: var(--muted); font-size: .9rem; line-height: 1.85; }
.auth-layout { display: grid; grid-template-columns: minmax(360px, .95fr) minmax(0, 1.05fr); min-height: 100vh; }
.auth-story { position: relative; background: #c8303d; color: #fff; padding: 40px 55px; display: flex; flex-direction: column; overflow: hidden; }
.auth-story .brand > span, .auth-story .brand-dot, .auth-story .brand small { color: white; }
.auth-story .brand img { background: #fff2; border: 1px solid #ffffff4a; border-radius: 14px; }
.auth-story-copy { position: relative; z-index: 1; margin-top: 68px; }
.auth-story-copy h2 { font-size: clamp(2.6rem, 4.3vw, 4.2rem); line-height: 1.1; }
.auth-story-copy p { color: #fff5ec; line-height: 1.85; margin-top: 22px; font-size: 1rem; }
.auth-illustration { width: 100%; max-width: 460px; height: auto; align-self: center; margin-top: -15px; animation: gentle-float 7s ease-in-out 2; }
.auth-story-footer { display: flex; align-items: center; gap: 10px; font-size: .76rem; margin-top: auto; padding-top: 15px; }
.auth-story-footer .icon { width: 19px; }
.auth-main { position: relative; padding: 32px 10% 26px; display: flex; flex-direction: column; justify-content: center; background: var(--surface); }
.auth-main:focus { outline: none; }
.auth-back { align-self: start; margin-bottom: auto; font-size: .8rem; }
.auth-card { max-width: 430px; width: 100%; margin: 34px auto; }
.auth-greeting { display: grid; place-items: center; width: 55px; height: 55px; border-radius: 18px; background: var(--red-soft); color: var(--red); margin-bottom: 24px; transform: rotate(-6deg); }
.auth-greeting .icon { width: 28px; height: 28px; }
.auth-card h1 { font-size: clamp(2rem, 3vw, 2.65rem); }
.auth-subtitle { color: var(--muted); margin: 13px 0 27px; font-size: .93rem; line-height: 1.8; }
.auth-form { display: grid; gap: 20px; }
.form-field { display: grid; gap: 8px; }
.form-field label { font-weight: 700; font-size: .85rem; }
.form-field input { min-width: 0; width: 100%; padding: 14px 15px; border: 1px solid var(--line); border-radius: 12px; color: var(--ink); background: var(--paper); min-height: 50px; font-size: 16px; }
.form-field > small { font-size: .72rem; line-height: 1.65; color: var(--muted); }
.password-field { position: relative; }
.password-field input { padding-right: 90px; }
.password-toggle { position: absolute; right: 4px; top: 4px; bottom: 4px; min-width: 76px; min-height: 42px; border: 0; color: var(--muted); background: transparent; border-radius: 8px; font-size: .75rem; font-weight: 700; }
.password-toggle:hover { color: var(--red); background: var(--red-soft); }
.auth-submit { margin-top: 3px; width: 100%; min-height: 51px; }
.auth-alternate { text-align: center; color: var(--muted); font-size: .85rem; margin: 25px 0; }
.auth-alternate a { color: var(--red); font-weight: 750; display: inline-block; padding: 6px 2px; }
.auth-contact { padding: 13px 15px; border: 1px solid var(--line); border-radius: 12px; background: var(--paper); line-height: 1.6; }
.auth-help { display: flex; align-items: flex-start; gap: 10px; color: var(--muted); font-size: .72rem; padding: 17px; background: var(--paper); border-radius: 12px; line-height: 1.7; }
.auth-help .icon { width: 18px; }
.auth-bottom { text-align: center; color: var(--muted); margin-top: auto; font-size: .68rem; padding-top: 15px; }
.form-error { display: flex; gap: 10px; align-items: flex-start; background: var(--red-soft); color: var(--red); font-size: .85rem; padding: 15px; border: 1px solid var(--red); border-radius: 12px; margin-bottom: 20px; }
.form-error .icon { width: 19px; }
.reveal { animation: rise-in .55s ease-out both; }
.reveal:nth-child(2) { animation-delay: .06s; }
.reveal:nth-child(3) { animation-delay: .12s; }
.reveal:nth-child(4) { animation-delay: .18s; }
@keyframes rise-in { from { opacity: 0; transform: translateY(13px); } to { opacity: 1; transform: translateY(0); } }
@keyframes gentle-float { 0%, 100% { transform: translateY(0) rotate(-1deg); } 50% { transform: translateY(-8px) rotate(1deg); } }
@keyframes star-turn { from { transform: rotate(-45deg) scale(.65); } to { transform: rotate(0) scale(1); } }
@keyframes label-in { from { opacity: 0; translate: 0 10px; } to { opacity: 1; translate: 0 0; } }
@media (min-width: 1550px) { :root { --sidebar-width: 250px; } .page-content { padding-top: 44px; } .discovery-hero { min-height: 370px; } }
@media (max-width: 1190px) {
    :root { --sidebar-width: 205px; }
    .sidebar { padding-inline: 15px; } .brand > span { font-size: 25px; } .brand img { width: 35px; height: 35px; }
    .topbar, .page-content, .page-footer { padding-left: 25px; padding-right: 25px; }
    .topbar-caption { display: none; }
    .hero-copy h2 { font-size: 2.35rem; } .discovery-hero { padding: 30px; }
    .hero-art > img { width: 130%; margin-left: -15%; } .label-top { right: -12px; top: 4px; } .label-bottom { left: -15px; }
    .course-card-body { padding: 18px; } .courses-grid { gap: 15px; } .cover-caption { font-size: .52rem; }
    .learning-layout { grid-template-columns: minmax(0, 1fr) 230px; gap: 18px; }
    .player-layout { grid-template-columns: minmax(0, 1fr); }
    .player-layout .study-aside { grid-template-columns: 1fr 1fr; }
    .tutor-invite > img { width: 115px; float: right; margin: 0 0 12px 15px; }
    .tutor-invite .button { clear: both; }
    .stat-card { padding: 18px; gap: 12px; } .stat-card .tip-icon { width: 35px; height: 35px; }
    .auth-story { padding: 35px; } .auth-main { padding: 30px 8%; }
}
@media (max-width: 900px) {
    :root { --sidebar-width: 230px; }
    .workspace { margin-left: 0; }
    .sidebar { transform: translateX(-105%); visibility: hidden; transition: transform .25s, visibility .25s; padding-top: 30px; }
    .sidebar.is-open { transform: translateX(0); visibility: visible; box-shadow: 10px 0 60px #0002; }
    .menu-toggle { display: inline-grid; }
    .sidebar-close { display: inline-grid; position: absolute; right: 10px; top: 83px; width: 32px; height: 32px; }
    .menu-backdrop.is-open { display: block; position: fixed; inset: 0; z-index: 34; background: #11182770; border: 0; width: 100%; height: 100%; }
    .topbar { min-height: 78px; } .topbar-title { font-size: .94rem; }
    .hero-copy h2 { font-size: 2.5rem; }
    .courses-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
    .cover-caption { font-size: .63rem; }
    .auth-layout { grid-template-columns: minmax(260px, .8fr) minmax(0, 1fr); }
    .auth-story { padding: 27px; } .auth-story-copy h2 { font-size: 3rem; } .auth-story-copy { margin-top: 65px; }
    .auth-story .hero-tag { font-size: .52rem; } .auth-main { padding: 26px; }
}
@media (max-width: 640px) {
    html { scroll-padding-top: 85px; }
    .topbar { padding: 12px 16px; min-height: 73px; gap: 8px; }
    .topbar-left, .topbar-actions { gap: 7px; } .topbar-divider, .account-name { display: none; }
    .topbar-title { font-size: .84rem; max-width: 105px; line-height: 1.3; }
    .topbar-actions > .button { padding: 10px 12px; }
    .topbar-actions > .button .icon { display: none; }
    .icon-button { width: 40px; height: 44px; border-radius: 11px; }
    .page-content { padding: 25px 18px 10px; }
    .welcome-row { align-items: flex-start; gap: 12px; margin-bottom: 23px; }
    .welcome-row h1 { font-size: 1.7rem; line-height: 1.3; }
    .welcome-row p { font-size: .88rem; margin-top: 8px; }
    .welcome-row .grade-pill { display: none; }
    .eyebrow { font-size: .58rem; letter-spacing: .09em; }
    .discovery-hero { grid-template-columns: 1fr; padding: 27px 25px 8px; border-radius: 22px; }
    .hero-copy h2 { font-size: 2.15rem; max-width: 360px; }
    .hero-tag { font-size: .55rem; margin-bottom: 17px; }
    .hero-copy p { font-size: .87rem; max-width: 320px; margin-bottom: 20px; }
    .hero-copy .button { min-height: 48px; }
    .hero-footnote { font-size: .63rem; margin-top: 15px; }
    .hero-art { height: 250px; min-height: 0; width: min(100%, 350px); margin: -7px auto 0; }
    .hero-art > img { width: 110%; max-width: 390px; height: auto; margin: 0; }
    .label-top { right: 0; top: 27px; font-size: .54rem; }
    .label-bottom { bottom: 15px; left: 0; font-size: .54rem; }
    .subjects-section, .catalog-section { margin-top: 30px; }
    .section-heading { gap: 12px; margin-bottom: 18px; }
    .section-heading h2 { font-size: 1.35rem; }
    .section-heading > .text-link { font-size: .72rem; flex-shrink: 0; gap: 4px; }
    .subjects-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
    .subject-link { font-size: .76rem; padding: 11px; gap: 9px; }
    .subject-icon { width: 33px; height: 36px; border-radius: 11px; }
    .subject-icon .icon { width: 18px; }
    .subject-link > .icon { display: none; }
    .search-form { width: 100%; gap: 6px; padding-left: 11px; }
    .search-form input { font-size: 16px; }
    .search-form .button { font-size: .8rem; padding: 10px 13px; }
    .catalog-tools { gap: 12px; } .results-summary { font-size: .74rem; }
    .courses-grid { grid-template-columns: 1fr; gap: 20px; }
    .course-cover { height: 184px; } .course-card-body { padding: 22px; }
    .course-card-body h3 { font-size: 1.3rem; } .course-card-body > p { font-size: .91rem; }
    .course-card-footer { font-size: .9rem; }
    .category-hero { grid-template-columns: 1fr; min-height: 0; padding: 30px 24px; border-radius: 22px; }
    .category-hero h1 { font-size: 2.45rem; }
    .category-hero-orbit { display: none; }
    .category-browser-grid { grid-template-columns: 1fr; }
    .category-browser-card > a { min-height: 106px; padding: 16px; }
    .category-breadcrumb { font-size: .7rem; }
    .editor-preview-notice { align-items: flex-start; }
    .empty-state { padding: 29px 20px; } .empty-state h3 { font-size: 1.2rem; }
    .discovery-strip { grid-template-columns: 1fr; gap: 14px; background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 18px; }
    .discovery-strip > div { padding: 0; gap: 15px; }
    .discovery-strip strong { font-size: .88rem; } .discovery-strip small { font-size: .8rem; }
    .page-footer { padding: 20px 18px 28px; font-size: .64rem; flex-direction: column; gap: 8px; }
    .course-intro { grid-template-columns: 1fr; gap: 25px; }
    .course-intro h1 { font-size: 2.2rem; }
    .course-intro-art { order: -1; } .course-intro-art .course-cover { height: 205px; }
    .course-intro-art .cover-glyph { width: 90px; height: 90px; border-radius: 27px; }
    .course-intro .lead { font-size: .93rem; }
    .course-meta { gap: 14px; font-size: .8rem; } .enroll-form .button { width: 100%; }
    .learning-layout, .player-layout, .player-layout .study-aside { grid-template-columns: 1fr; }
    .panel { padding: 22px 18px; }
    .panel-heading h2 { font-size: 1.3rem; }
    .lesson-row { gap: 12px; } .lesson-row-copy strong { font-size: .89rem; }
    .lesson-heading h1 { font-size: 1.9rem; }
    .lesson-heading > p { font-size: .87rem; }
    .player-info { padding: 23px 18px; } .player-info h2 { font-size: 1.1rem; }
    .progress-form { gap: 8px; } .progress-form .button { font-size: .82rem; flex-basis: 40%; }
    .progress-form .button:last-child { flex-basis: 100%; }
    .transcript summary { padding: 20px 18px; flex-wrap: wrap; font-size: .82rem; gap: 8px; }
    .transcript summary > span { width: 100%; margin-left: 27px; }
    .transcript > div { padding-inline: 18px; }
    .dashboard-banner { padding: 25px; position: relative; min-height: 300px; display: block; }
    .dashboard-banner > div { position: relative; z-index: 1; }
    .dashboard-banner h2 { font-size: 2.1rem; }
    .dashboard-banner p { font-size: .88rem; max-width: 290px; }
    .dashboard-banner > img { width: 155px; margin: 15px auto 0; display: block; }
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .stat-card { padding: 18px 14px; flex-direction: column; align-items: flex-start; gap: 12px; }
    .stat-card strong { font-size: 1.6rem; } .stat-card small { font-size: .74rem; }
    .pace-card { grid-column: 1 / -1; flex-direction: row; align-items: center; gap: 15px; }
    .pace-card strong { font-size: 1.1rem; }
    .guide-intro { margin-top: 7px; } .guide-intro h1 { font-size: 2.3rem; }
    .guide-grid, .guide-safety { grid-template-columns: 1fr; gap: 18px; }
    .guide-card { padding: 23px; } .guide-card h2 { font-size: 1.4rem; }
    .guide-card p { font-size: .91rem; }
    .wellbeing-banner { align-items: flex-start; padding: 23px; flex-direction: column; gap: 17px; }
    .wellbeing-banner h2 { font-size: 1.45rem; }
    .auth-layout { display: flex; flex-direction: column; }
    .auth-story { padding: 22px 25px; min-height: auto; flex: 0 0 auto; }
    .auth-story .brand img { width: 34px; height: 34px; }
    .auth-story .brand > span { font-size: 25px; }
    .auth-story-copy { margin-top: 22px; max-width: 75%; }
    .auth-story-copy .hero-tag, .auth-story-copy p, .auth-story-footer { display: none; }
    .auth-story-copy h2 { font-size: 1.6rem; line-height: 1.2; }
    .auth-story-copy h2 br { display: none; }
    .auth-story-copy h2 em { display: block; }
    .auth-illustration { position: absolute; right: -40px; bottom: -14px; width: 180px; height: auto; opacity: .85; }
    .auth-main { padding: 20px 25px 28px; flex: 1; }
    .auth-card { margin: 22px auto 30px; }
    .auth-greeting { display: none; } .auth-card h1 { font-size: 2rem; }
    .auth-back { margin: 0; font-size: .77rem; }
    .auth-bottom { font-size: .65rem; }
}
@media (max-width: 360px) {
    .topbar { padding-inline: 10px; } .topbar-left, .topbar-actions { gap: 4px; }
    .topbar-title { max-width: 77px; font-size: .77rem; }
    .page-content { padding-inline: 14px; }
    .hero-copy h2 { font-size: 1.93rem; } .discovery-hero { padding-inline: 22px; }
    .hero-tag { font-size: .49rem; }
    .hero-art { height: 214px; } .hero-art > img { width: 117%; } .label-top { right: -10px; }
    .auth-main { padding-inline: 21px; } .auth-story-copy { max-width: 77%; }
    .auth-illustration { right: -52px; width: 160px; }
}
[data-motion="off"] *, [data-motion="off"] *::before, [data-motion="off"] *::after {
    animation: none !important; transition: none !important; scroll-behavior: auto !important;
}
[data-motion="off"] { scroll-behavior: auto; }
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
    html { scroll-behavior: auto; }
}
@media (forced-colors: active) {
    .button, .course-card, .panel, .subject-link, .discovery-hero, .auth-story { border: 1px solid CanvasText; }
    .course-cover, .hero-art { forced-color-adjust: none; }
    progress { appearance: auto; }
}