:root {
  --blue: #123b82;
  --ink: #142b48;
  --muted: #56667a;
  --red: #d83d49;
  --yellow: #ffda57;
  --line: #dbe3ec;
  --pale: #f0f6fc;
  --max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body { margin: 0; background: #fff; color: var(--ink); font-family: Meiryo, "Hiragino Kaku Gothic ProN", "Hiragino Sans", sans-serif; font-size: 15px; line-height: 1.85; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
[hidden] { display: none !important; }
h1, h2, h3, p { overflow-wrap: anywhere; }
h1, h2, h3 { font-weight: 800; line-height: 1.35; }
h2 { margin: 0; font-size: clamp(26px, 3.25vw, 43px); letter-spacing: -.045em; }
a, button, summary { -webkit-tap-highlight-color: transparent; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid #e54854; outline-offset: 5px; }
.skip-link { position: fixed; top: 10px; left: 12px; z-index: 50; transform: translateY(-160%); padding: 8px 16px; background: white; border: 2px solid var(--blue); border-radius: 6px; }
.skip-link:focus { transform: none; }
.section-wrap { width: min(calc(100% - 80px), var(--max)); margin-inline: auto; }
.site-header { position: sticky; top: 0; z-index: 20; background: #fffffff5; border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
.header-inner { max-width: var(--max); min-height: 78px; margin: auto; display: flex; justify-content: space-between; align-items: center; gap: 28px; padding: 13px 0; }
.brand { display: inline-flex; align-items: center; gap: 14px; font-family: "Arial", Meiryo, sans-serif; font-size: 23px; font-weight: 900; letter-spacing: -.06em; color: var(--blue); line-height: 1.4; }
.brand span { display: flex; align-items: center; gap: 6px; font-size: 11px; font-weight: 600; letter-spacing: .02em; }
.brand i { width: 7px; height: 7px; border-radius: 50%; background: var(--red); }
.site-header nav { display: flex; align-items: center; gap: 27px; font-size: 12px; font-weight: 700; }
.site-header nav a:hover { color: var(--red); }
.header-home { border-left: 1px solid var(--line); padding-left: 25px; }
.hero { padding: 40px 0 30px; background: radial-gradient(circle at 76% 22%, #fff4cc 0, transparent 28%), linear-gradient(135deg, #f6f9ff, #fff 65%); border-bottom: 1px solid var(--line); }
.hero-inner { width: min(calc(100% - 80px), var(--max)); margin: auto; display: grid; grid-template-columns: 1fr 1fr; gap: 46px; align-items: center; }
.eyebrow { margin: 0 0 15px; color: var(--red); font-family: "Arial", Meiryo, sans-serif; font-size: 10px; font-weight: 800; letter-spacing: .14em; }
.hero .eyebrow { display: flex; align-items: center; gap: 9px; }
.hero .eyebrow span { display: inline-block; width: 22px; height: 2px; background: var(--red); }
.hero h1 { margin: 0 0 18px; color: var(--blue); font-size: clamp(39px, 4.3vw, 59px); line-height: 1.22; letter-spacing: -.055em; }
.hero h1 em { font-style: normal; color: var(--red); }
.hero-lead { margin: 0 0 21px; font-size: 16px; line-height: 1.9; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 28px; padding: 13px 20px; font-size: 13px; font-weight: 700; border-radius: 8px; transition: background .2s, transform .2s, box-shadow .2s; }
.button.primary { background: var(--blue); color: white; box-shadow: 4px 4px 0 var(--yellow); }
.button.primary:hover { background: #0a2b65; transform: translateY(-2px); }
.hero-status { display: flex; align-items: center; flex-wrap: wrap; gap: 5px; margin: 18px 0 0; font-size: 10px; color: var(--muted); }
.hero-status>span { width: 5px; height: 5px; border-radius: 50%; background: #67788d; }
.hero-status a { text-decoration: underline; text-underline-offset: 3px; }
.hero-art { position: relative; height: 355px; border-radius: 28px; overflow: hidden; background: linear-gradient(135deg, #fff4cd, #f7fbff 65%); isolation: isolate; }
.art-orbit { position: absolute; border: 1px solid #e4cf94; border-radius: 50%; z-index: -1; }
.orbit-one { width: 460px; height: 460px; right: -25px; top: -10px; }
.orbit-two { width: 350px; height: 350px; right: 35px; top: 45px; border-color: #bed1e5; }
.art-label { position: absolute; top: 25px; left: 25px; font-size: 12px; color: var(--blue); font-weight: 700; }
.art-code { position: absolute; top: 67px; left: 24px; width: 231px; padding: 15px 18px; border: 1px solid #d3e1ed; border-radius: 12px; background: #ffffffef; box-shadow: 0 10px 24px #2945680d; transform: rotate(-3deg); }
.art-code>span { display: block; font-size: 8px; letter-spacing: .12em; color: var(--muted); font-family: Arial, sans-serif; margin-bottom: 10px; }
.art-code code { font-family: Consolas, monospace; font-size: 13px; line-height: 1.9; color: var(--blue); }
.art-code code b { color: var(--red); }
.art-code small { display: block; padding-top: 6px; margin-top: 7px; border-top: 1px solid #e1e7f0; }
.art-code small i { color: #258360; font-size: 10px; font-style: normal; margin-right: 8px; }
.character { position: absolute; bottom: 0; object-fit: contain; height: 245px; width: 145px; filter: drop-shadow(0 8px 6px #15314f10); }
.student-a { left: 8px; height: 204px; width: 136px; transform: rotate(-3deg); }
.teacher { left: 126px; height: 185px; width: 135px; bottom: 8px; }
.robot { left: 242px; height: 139px; width: 128px; bottom: 17px; }
.student-b { right: 6px; height: 243px; width: 158px; }
.art-sticker { position: absolute; top: 26px; right: 28px; display: grid; place-items: center; width: 74px; height: 74px; border-radius: 50%; background: var(--yellow); color: var(--blue); font-family: Arial, sans-serif; font-size: 18px; font-weight: 900; line-height: .95; transform: rotate(12deg); box-shadow: 0 0 0 7px #ffffff70; }
.quick-paths { width: min(calc(100% - 80px), var(--max)); margin: 30px auto 0; display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); border: 1px solid var(--line); border-radius: 12px; background: white; box-shadow: 0 12px 36px #23486b07; overflow: hidden; }
.quick-path { min-width: 0; display: flex; gap: 16px; align-items: center; padding: 17px 21px; transition: background .2s; }
.quick-path+.quick-path { border-left: 1px solid var(--line); }
.quick-path:hover { background: var(--pale); }
.path-number { display: grid; place-items: center; width: 39px; height: 39px; flex: 0 0 39px; font: 700 14px Arial, sans-serif; border-radius: 50%; background: #e9f5ee; color: #226149; }
.quick-python .path-number { background: #eaf1ff; color: var(--blue); }
.quick-ai .path-number { background: #fff3cc; color: #855200; }
.quick-path small, .quick-path strong { display: block; }
.quick-path small { color: var(--muted); font-size: 10px; }
.quick-path strong { font-size: 15px; letter-spacing: -.03em; }
.quick-path i { font-style: normal; margin-left: auto; color: var(--blue); font-size: 19px; }
.materials { padding-block: 76px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 30px; }
.section-heading .eyebrow { margin-bottom: 9px; }
.section-heading>p { margin: 0 0 3px; color: var(--muted); font-size: 13px; }
.material-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 20px; }
.material-card { display: flex; flex-direction: column; min-width: 0; border: 1px solid var(--line); border-radius: 15px; overflow: hidden; background: white; transition: transform .2s, box-shadow .2s; }
.material-card:hover { transform: translateY(-4px); box-shadow: 0 14px 36px #1534550e; }
.card-art { position: relative; height: 185px; padding: 13px; background: #f0f6ff; }
.card-art img { width: 100%; height: 100%; object-fit: contain; }
.game-card .card-art { padding: 0; background: #07101b; }
.game-card .card-art img { object-fit: cover; }
.ai-card .card-art { background: #fff6de; }
.card-badge { position: absolute; top: 12px; left: 12px; padding: 4px 8px; background: #fffffff2; color: var(--blue); border-radius: 4px; font-size: 8px; font-weight: 700; }
.game-card .card-badge { background: #13253bdd; color: #e5f8ff; }
.card-copy { display: flex; flex-direction: column; flex: 1; padding: 25px 24px 24px; }
.card-index { color: var(--red); font: 700 8px/1.5 Arial, sans-serif; letter-spacing: .1em; margin: 0 0 9px; }
.card-copy h3 { margin: 0 0 7px; color: var(--blue); font-size: 23px; letter-spacing: -.05em; }
.course-name { margin: 0 0 14px; font-size: 11px; color: var(--muted); }
.card-description { margin: 0 0 22px; font-size: 14px; color: #445568; line-height: 1.9; }
.course-facts { margin: auto 0 14px; border-top: 1px solid var(--line); font-size: 12px; }
.course-facts>div { display: grid; grid-template-columns: 70px minmax(0,1fr); gap: 8px; padding: 11px 0; border-bottom: 1px solid var(--line); }
.course-facts dt { color: #43576f; font-weight: 700; }
.course-facts dd { margin: 0; color: #506277; }
.course-format { margin: 0 0 20px; font-size: 11px; color: var(--muted); }
.card-link { display: flex; align-items: center; justify-content: space-between; width: 100%; gap: 10px; padding: 12px 14px; color: var(--blue); background: #f0f5fc; border-radius: 6px; font-size: 12px; font-weight: 700; }
.card-link:hover { background: #e1ebf8; }
.illustration-note { margin: 18px 0 0; color: #6b7787; font-size: 10px; }
.signal-feature { position: relative; isolation: isolate; overflow: hidden; background: #091a2d; color: #fff; }
.signal-backdrop { position: absolute; inset: 0; z-index: -1; background: radial-gradient(ellipse at 85% 18%, #1a4b5965 0, transparent 45%); }
.signal-inner { padding-block: 72px; }
.signal-heading { display: flex; justify-content: space-between; align-items: center; gap: 25px; padding-bottom: 24px; border-bottom: 1px solid #ffffff25; }
.signal-feature .eyebrow { color: #8ce7dd; }
.signal-heading .eyebrow { margin: 0; }
.signal-type { color: #b5c4d4; font-size: 11px; }
.signal-story { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 55px; padding-top: 44px; }
.signal-name { color: #a8c9de; letter-spacing: .17em; font: 700 12px Arial, sans-serif; margin: 0 0 18px; }
.story-copy h2 { color: white; font-size: clamp(27px,3.55vw,45px); line-height: 1.4; letter-spacing: -.055em; }
.story-copy h2 em { color: #90e9df; font-style: normal; }
.story-lead { color: #baccdc; font-size: 13px; margin: 24px 0 28px; line-height: 2.1; }
.signal-button { color: #0c2937; background: #a4f0de; box-shadow: 4px 4px 0 #39766c; }
.signal-button:hover { background: #cbfff0; transform: translateY(-2px); }
.signal-save { color: #aabed0; font-size: 10px; margin: 18px 0 0; }
.story-visual { position: relative; overflow: hidden; margin: 0; border: 1px solid #52687e; border-radius: 14px; }
.story-visual img { width: 100%; height: 440px; object-fit: cover; }
.story-visual figcaption { position: absolute; bottom: 0; inset-inline: 0; padding: 40px 20px 18px; background: linear-gradient(transparent, #06101ad9); display: flex; justify-content: space-between; gap: 12px; font: 10px Arial, sans-serif; letter-spacing: .15em; }
.story-visual figcaption b { color: #ffb9aa; font-size: 9px; }
.story-visual figcaption i { display: inline-block; width: 5px; height: 5px; background: #ff9c87; border-radius: 50%; margin-right: 6px; }
.gameplay-section { display: grid; grid-template-columns: .7fr 1.3fr; align-items: center; gap: 55px; margin-top: 65px; }
.gameplay-copy h3 { font-size: 29px; margin: 0 0 17px; line-height: 1.45; }
.gameplay-copy>p:not(.eyebrow) { font-size: 12px; color: #bbcedd; }
.investigation-steps { list-style: none; padding: 0; margin: 26px 0 0; display: grid; gap: 14px; }
.investigation-steps li { display: flex; gap: 14px; align-items: center; }
.investigation-steps li>b { display: grid; place-items: center; width: 32px; height: 32px; background: #ffffff0a; border: 1px solid #638693; color: #a4f0de; border-radius: 50%; font: 11px Arial, sans-serif; }
.investigation-steps strong, .investigation-steps small { display: block; }
.investigation-steps strong { font-size: 12px; font-weight: 600; }
.investigation-steps small { color: #9bb5c8; font-size: 10px; }
.gameplay-preview { margin: 0; overflow: hidden; border: 1px solid #637488; border-radius: 10px; background: #12263d; box-shadow: 0 24px 50px #00000020; }
.window-bar { display: flex; align-items: center; justify-content: space-between; padding: 11px 14px; gap: 15px; font: 8px Arial,sans-serif; color: #aec5d8; letter-spacing: .11em; }
.window-bar>span { display: flex; gap: 5px; }
.window-bar i { width: 5px; height: 5px; border-radius: 50%; background: #8199ac; }
.gameplay-preview>img { width: 100%; height: auto; }
.gameplay-preview figcaption { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 10px; padding: 11px 14px; color: #b7cadd; font-size: 9px; }
.preview-button { color: #c3f6e9; border: 0; border-bottom: 1px solid #82a9a4; padding: 2px 0; background: transparent; font-size: 10px; }
.meister-context { display: flex; gap: 23px; align-items: center; padding: 25px 30px; margin-top: 52px; background: #eaf4f8; border-radius: 12px; color: #173249; }
.meister-mark { display: grid; place-items: center; flex: 0 0 54px; width: 54px; height: 54px; border: 1px solid #aac9d2; border-radius: 50%; color: #2c6373; font: 700 25px Georgia,serif; }
.meister-context div>p:first-child { color: #317586; font: 700 8px Arial,sans-serif; letter-spacing: .12em; margin: 0 0 8px; }
.meister-context h3 { font-size: 20px; margin: 0 0 10px; }
.meister-context div>p:last-child { font-size: 12px; color: #455f70; line-height: 1.95; margin: 0; max-width: 920px; }
.learning-section { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: center; padding-block: 90px; }
.learning-copy>p:not(.eyebrow) { margin: 25px 0; font-size: 13px; color: var(--muted); max-width: 410px; }
.learning-steps { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; margin: 0; padding: 0; }
.learning-steps li { display: flex; align-items: center; gap: 8px; font-size: 10px; color: var(--blue); }
.learning-steps b { display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: #eaf1fb; font: 11px Arial,sans-serif; }
.mini-experiment { border: 1px solid var(--line); border-radius: 15px; padding: 27px 30px; background: #f9fbfe; box-shadow: 6px 6px 0 #eaf0f7; }
.experiment-tag { font-size: 9px; color: var(--blue); font-weight: 700; margin: 0 0 10px; }
.mini-experiment h3 { font-size: 22px; margin: 0 0 18px; }
.mini-experiment pre { overflow-x: auto; white-space: pre; padding: 18px; margin: 0; border-radius: 7px; background: #12243d; color: #e9f3ff; font: 15px/2 Consolas, monospace; }
.code-var { color: #bedcff; }.code-number { color: #ffe39f; }.code-function { color: #a2eacb; }
.experiment-question { font-size: 12px; color: var(--muted); margin: 16px 0 12px; }
.quiz-options { display: flex; gap: 9px; }
.quiz-options button { padding: 7px 17px; background: white; border: 1px solid #b8cadf; border-radius: 5px; color: var(--blue); font-size: 13px; font-weight: 700; }
.quiz-options button:hover { background: #eaf2fc; }
.quiz-options button[aria-pressed="true"] { background: var(--blue); color: white; border-color: var(--blue); }
.quiz-feedback { min-height: 43px; font-size: 11px; color: var(--muted); margin: 14px 0 12px; }
.quiz-feedback.correct { color: #17613e; }
.experiment-link { display: inline-block; color: var(--blue); border-bottom: 1px solid #96abc8; font-size: 11px; }
.beginner-route { display: grid; grid-template-columns: 1fr .65fr; align-items: center; gap: 40px; border: 1px solid #dfddcd; border-radius: 18px; padding: 40px 50px; background: #fffbeb; }
.beginner-route h2 { font-size: 31px; }
.beginner-route p:not(.eyebrow) { color: #5e6055; font-size: 13px; max-width: 630px; margin: 20px 0 25px; }
.button.outline { border: 1px solid var(--blue); color: var(--blue); background: white; }
.button.outline:hover { background: #f0f6ff; }
.beginner-art { display: flex; justify-content: center; align-items: center; gap: 15px; }
.beginner-art>span { padding: 12px 16px; border: 1px solid #c7b76c; background: white; border-radius: 50%; text-align: center; color: var(--blue); font-size: 12px; font-weight: 700; transform: rotate(-5deg); }
.beginner-art img { width: 145px; height: 200px; object-fit: contain; }
.guide { padding-block: 83px; }
.guide h2 { font-size: 31px; }
.guide-details { border-top: 1px solid var(--line); }
.guide details { border-bottom: 1px solid var(--line); scroll-margin-top: 100px; }
.guide summary { list-style: none; display: flex; justify-content: space-between; gap: 20px; padding: 20px 0; font-size: 13px; font-weight: 600; cursor: pointer; color: var(--blue); }
.guide summary::-webkit-details-marker { display: none; }
.guide summary>span { transition: transform .2s; font-weight: 400; }
.guide details[open] summary>span { transform: rotate(45deg); }
.guide details>div { padding: 0 30px 22px 0; max-width: 870px; }
.guide details>div p { margin: 0; font-size: 12px; color: var(--muted); }
.guide details a { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; }
.site-footer { padding: 43px 0; background: #f3f6fa; border-top: 1px solid var(--line); }
.footer-inner { width: min(calc(100% - 80px),var(--max)); margin: auto; display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; }
.site-footer .brand { align-items: start; flex-direction: column; gap: 7px; font-size: 21px; }
.site-footer .brand span { font-size: 10px; color: var(--muted); }
.site-footer p { margin: 10px 0 0; color: var(--muted); font-size: 10px; }
.site-footer nav { display: flex; gap: 25px; font-size: 11px; color: var(--blue); }
.site-footer small { grid-column: 1/-1; font-size: 9px; color: var(--muted); }
.preview-dialog { width: min(1160px,calc(100% - 32px)); max-height: calc(100dvh - 40px); border: 1px solid #668096; border-radius: 12px; padding: 0; background: #0e2238; color: white; }
.preview-dialog::backdrop { background: #031122d9; }
.preview-dialog-header { position: sticky; top: 0; display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 16px 20px; background: #0e2238; }
.preview-dialog h2 { font-size: 13px; letter-spacing: 0; }
.preview-dialog-header button { border: 1px solid #658296; padding: 6px 12px; border-radius: 5px; color: white; background: transparent; font-size: 12px; }
.preview-dialog>img { width: 100%; height: auto; }
.mobile-break { display: none; }
.site-header nav a { display: inline-flex; align-items: center; min-height: 32px; }
.quiz-options button { min-width: 52px; min-height: 44px; }
.preview-button { min-height: 32px; }
@media(min-width:1500px) { .hero { padding-top: 48px; padding-bottom: 38px; }.hero-art { height: 375px; } }
@media(max-width:1260px) { .header-inner { padding-inline: 40px; }.student-a { width: 124px; left: 4px; }.teacher { width: 119px; left: 110px; }.robot { width: 110px; left: 214px; }.student-b { width: 143px; right: 0; } }
@media(max-width:1050px) { .hero-inner { gap: 26px; }.art-code { width: 205px; top: 75px; }.character { max-width: 31%; }.student-a { left: 0; height: 180px; }.teacher { left: 25%; height: 163px; }.robot { left: 51%; height: 115px; }.student-b { height: 210px; }.art-sticker { right: 18px; width: 59px; height: 59px; font-size: 15px; }.material-grid { gap: 14px; }.card-copy { padding: 22px 18px; }.card-copy h3 { font-size: 21px; }.course-facts>div { grid-template-columns: 62px minmax(0,1fr); gap: 5px; }.signal-story { gap: 32px; }.gameplay-section { gap: 30px; }.learning-section { gap: 50px; }.quick-path { gap: 10px; padding: 15px; }.quick-path strong { font-size: 13px; }.site-header nav { gap: 18px; } }
@media(max-width:850px) { html { scroll-padding-top: 110px; }.section-wrap,.hero-inner,.quick-paths,.footer-inner { width: calc(100% - 44px); }.header-inner { padding: 13px 22px; flex-wrap: wrap; gap: 9px; }.brand { font-size: 22px; }.site-header nav { gap: 21px; font-size: 11px; }.header-home { padding-left: 16px; }.hero-inner { grid-template-columns: 1fr 1fr; gap: 20px; }.hero h1 { font-size: 37px; }.hero-art { height: 300px; }.art-label { font-size: 10px; left: 17px; top: 17px; }.art-code { left: 15px; top: 52px; width: 182px; padding: 10px 13px; }.art-code code { font-size: 11px; }.art-sticker { display: none; }.character { max-width: 32%; }.student-a { height: 147px; }.teacher { height: 143px; }.robot { height: 101px; }.student-b { height: 180px; }.hero-lead { font-size: 12px; }.hero .button { font-size: 11px; padding: 11px 14px; gap: 18px; }.quick-path { gap: 9px; padding: 14px 11px; }.path-number { width: 30px; height: 30px; flex-basis: 30px; font-size: 11px; }.quick-path strong { font-size: 11px; }.quick-path small { font-size: 9px; }.quick-path i { font-size: 16px; }.material-grid { grid-template-columns: 1fr; gap: 22px; }.material-card { display: grid; grid-template-columns: .8fr 1.2fr; }.card-art { height: 100%; min-height: 320px; padding: 18px; }.card-badge { font-size: 8px; }.card-copy { padding: 25px; }.card-copy h3 { font-size: 24px; }.card-description { font-size: 13px; }.course-facts { font-size: 12px; }.course-facts>div { grid-template-columns: 78px minmax(0,1fr); }.signal-story { gap: 28px; }.story-copy h2 { font-size: 29px; }.story-visual img { height: 380px; }.story-lead { font-size: 12px; }.signal-type { font-size: 10px; }.signal-heading .eyebrow { font-size: 9px; }.gameplay-section { grid-template-columns: 1fr; gap: 28px; }.gameplay-copy { display: grid; grid-template-columns: 1fr 1fr; gap: 0 35px; }.gameplay-copy .eyebrow { grid-column: 1; }.gameplay-copy h3 { grid-column: 1; }.gameplay-copy>p:not(.eyebrow) { grid-column: 1; }.investigation-steps { grid-column: 2; grid-row: 1/4; margin: 0; align-self: center; }.learning-section { gap: 35px; }.mini-experiment { padding: 23px; }.learning-steps { flex-direction: column; }.beginner-route { padding: 33px; gap: 20px; }.beginner-route h2 { font-size: 27px; }.beginner-art { flex-direction: column; gap: 0; }.beginner-art img { height: 160px; width: 120px; }.beginner-art>span { font-size: 10px; }.guide .section-heading { display: block; }.guide .section-heading>p { margin-top: 14px; } }
@media(max-width:600px) { body { font-size: 14px; }.section-wrap,.hero-inner,.quick-paths,.footer-inner { width: calc(100% - 36px); }.header-inner { padding-inline: 18px; gap: 10px; }.brand { font-size: 20px; gap: 10px; }.brand span { font-size: 10px; }.site-header nav { width: 100%; justify-content: space-between; gap: 8px; font-size: 10px; }.header-home { padding-left: 10px; }.hero { padding: 27px 0 22px; }.hero-inner { display: block; position: relative; }.hero-copy { position: relative; z-index: 2; }.hero h1 { font-size: clamp(34px,9.5vw,47px); max-width: 100%; margin-bottom: 14px; }.hero .eyebrow { font-size: 8px; margin-bottom: 12px; }.hero-lead { font-size: 12px; margin-bottom: 17px; }.hero .button { font-size: 11px; padding: 11px 15px; }.hero-status { font-size: 9px; margin-top: 15px; max-width: 100%; }.hero-art { display: none; }.quick-paths { grid-template-columns: 1fr; margin-top: 24px; }.quick-path { padding: 12px 14px; }.quick-path+.quick-path { border-left: 0; border-top: 1px solid var(--line); }.quick-path small { font-size: 9px; }.quick-path strong { font-size: 13px; }.path-number { width: 33px; height: 33px; flex-basis: 33px; }.quick-path>span:nth-child(2) { display: flex; gap: 12px; align-items: baseline; }.quick-path i { font-size: 19px; }.section-heading { display: block; margin-bottom: 26px; }.section-heading>p { margin-top: 16px; font-size: 12px; }.materials { padding-block: 52px; }.material-card { display: flex; }.card-art { height: 185px; min-height: 0; }.card-copy { padding: 23px; }.card-copy h3 { font-size: 25px; }.course-facts>div { padding: 10px 0; grid-template-columns: 82px minmax(0,1fr); }.card-link { font-size: 12px; }.illustration-note { font-size: 9px; }.signal-inner { padding-block: 48px; }.signal-heading { display: block; padding-bottom: 18px; }.signal-type { display: block; margin-top: 10px; }.signal-story { grid-template-columns: 1fr; gap: 30px; padding-top: 30px; }.story-copy h2 { font-size: clamp(25px,7.2vw,36px); }.story-lead { font-size: 12px; margin: 20px 0 23px; }.story-visual img { height: 290px; }.story-visual figcaption { font-size: 9px; }.signal-name { font-size: 10px; margin-bottom: 16px; }.signal-save { font-size: 9px; }.gameplay-section { margin-top: 42px; gap: 23px; }.gameplay-copy { display: block; }.gameplay-copy h3 { font-size: 27px; }.investigation-steps { margin-top: 23px; }.gameplay-preview figcaption { font-size: 8px; padding: 10px; }.meister-context { padding: 23px 20px; gap: 14px; align-items: start; margin-top: 33px; }.meister-mark { width: 34px; height: 34px; flex-basis: 34px; font-size: 18px; }.meister-context h3 { font-size: 18px; }.meister-context div>p:last-child { font-size: 11px; }.learning-section { padding-block: 52px; grid-template-columns: 1fr; gap: 30px; }.learning-steps { flex-direction: row; font-size: 9px; gap: 8px; }.learning-copy>p:not(.eyebrow) { margin-block: 19px; }.mini-experiment { padding: 25px 22px; }.mini-experiment pre { font-size: 14px; padding: 15px; }.beginner-route { grid-template-columns: 1fr; padding: 27px 23px; gap: 10px; }.beginner-route h2 { font-size: 26px; }.beginner-route p:not(.eyebrow) { font-size: 12px; }.beginner-art { flex-direction: row; justify-content: end; margin-top: -30px; pointer-events: none; }.beginner-art>span { display: none; }.beginner-art img { height: 100px; width: 70px; }.beginner-route .button { font-size: 11px; gap: 15px; padding: 11px 15px; }.guide { padding-block: 52px; }.guide h2 { font-size: 25px; }.guide summary { font-size: 12px; gap: 10px; }.guide details>div { padding-right: 0; }.footer-inner { grid-template-columns: 1fr; gap: 24px; }.site-footer nav { flex-wrap: wrap; gap: 20px; }.site-footer { padding: 33px 0; }.mobile-break { display: inline; }.desktop-break { display: none; }.preview-dialog-header { padding: 12px; gap: 10px; }.preview-dialog h2 { font-size: 10px; }.preview-dialog-header button { font-size: 10px; white-space: nowrap; } }
@media(prefers-reduced-motion:reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; } }
@media(max-width:600px) {
  .site-header nav { font-size: 11px; }
  .site-header nav a { min-height: 40px; }
  .hero-lead { font-size: 14px; }
  .hero-status { font-size: 10px; }
  .card-description, .story-lead, .learning-copy>p:not(.eyebrow), .beginner-route p:not(.eyebrow) { font-size: 14px; }
  .course-facts { font-size: 13px; }
  .meister-context div>p:last-child, .guide details>div p { font-size: 13px; }
  .guide summary { font-size: 13px; }
  .quiz-feedback, .experiment-question { font-size: 13px; }
}