@import url("../tokens.css");

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--color-paper);color:var(--color-ink);font-family:var(--font-body);font-size:var(--text-md);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:inherit;text-underline-offset:.2em}
svg{display:block;width:100%;height:100%}
.shell{width:min(74rem,calc(100% - 3rem));margin-inline:auto}
.skip-link{position:fixed;inset:1rem auto auto 1rem;z-index:20;padding:.7rem 1rem;background:var(--color-ink);color:white;transform:translateY(-180%)}
.skip-link:focus{transform:none}
.site-header{position:relative;z-index:10;border-bottom:1px solid var(--color-rule);background:color-mix(in oklch,var(--color-paper) 92%,transparent)}
.nav{min-height:4.75rem;display:flex;align-items:center;justify-content:space-between;gap:1.5rem}
.brand{display:inline-flex;align-items:center;gap:.65rem;font-weight:700;text-decoration:none;letter-spacing:-.02em}
.brand-mark{width:2rem;height:2rem;padding:.25rem;border-radius:50%;background:var(--color-ink);color:var(--color-paper)}
.nav-links,.footer-inner div{display:flex;align-items:center;gap:1.4rem}
.nav-links a{font-size:var(--text-sm);font-weight:600;text-decoration:none}
.store-badge{display:inline-flex;flex:0 0 auto;line-height:0;text-decoration:none;transition:transform var(--dur-short) var(--ease-out),filter var(--dur-short) var(--ease-out)}
.store-badge img{display:block;width:auto;height:100%}
.nav-store{height:2.5rem}
.hero{padding-block:clamp(3rem,7vw,5rem);border-bottom:1px solid var(--color-rule)}
.eyebrow,.section-label{margin:0 0 .9rem;color:var(--color-accent);font-size:var(--text-xs);font-weight:700;letter-spacing:.13em;text-transform:uppercase}
h1,h2{margin:0;font-family:var(--font-display);font-weight:400;letter-spacing:-.025em}
h1{max-width:14ch;font-size:clamp(3.25rem,8vw,7rem);line-height:.94}
.learning-page h1{font-size:clamp(2.8rem,6vw,5rem)}
h2{font-size:clamp(2.15rem,4.5vw,3.75rem);line-height:1.04}
.lede{max-width:47rem;margin:1.5rem 0 0;color:var(--color-ink-2);font-size:clamp(1.1rem,2vw,1.35rem)}
.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:.8rem;margin-top:2rem}
.button{display:inline-flex;align-items:center;justify-content:center;gap:1.2rem;min-height:3.2rem;padding:.75rem 1.1rem;border:1px solid var(--color-ink);border-radius:var(--radius-input);font-weight:700;text-decoration:none}
.button-primary{background:var(--color-ink);color:var(--color-paper)}
.button-secondary{background:transparent}
.content{display:grid;grid-template-columns:13rem minmax(0,1fr);gap:clamp(3rem,8vw,8rem);align-items:start;padding-block:4rem 7rem}
.contents{position:sticky;top:2rem;display:grid;gap:.55rem;padding-top:.4rem}
.contents p{margin:0 0 .35rem;font-size:var(--text-xs);font-weight:700;letter-spacing:.12em;text-transform:uppercase}
.contents a{color:var(--color-ink-2);font-size:var(--text-sm);text-decoration:none}
.contents a:hover{text-decoration:underline}
.article-body{min-width:0}
.article-body>section,.article-body>nav,.article-body>aside{padding-block:3.5rem;border-bottom:1px solid var(--color-rule)}
.article-body section:first-child{padding-top:0}
.article-body h2+p,.article-body>section>p:not(.section-label){max-width:46rem}
.quick-answer>p:not(.section-label){font-size:var(--text-lg)}
blockquote{margin:2rem 0 0;padding:1.5rem 1.75rem;border-left:3px solid var(--color-accent);background:var(--color-paper-3)}
blockquote p{margin:0;font-family:var(--font-display);font-size:clamp(1.65rem,3vw,2.4rem);line-height:1.25}
.scenario-card{margin-top:2rem;padding:clamp(1.5rem,4vw,2.5rem);background:var(--color-ink);color:var(--color-paper);border-radius:var(--radius-card)}
.scenario-card>p{margin:0;font-size:var(--text-lg)}
.scenario-card dl{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;margin:2rem 0 0;padding-top:1.5rem;border-top:1px solid color-mix(in oklch,var(--color-paper) 24%,transparent)}
.scenario-card dl div{min-width:0}
.scenario-card dt{color:var(--color-accent-wash);font-size:var(--text-xs);font-weight:700;text-transform:uppercase;letter-spacing:.08em}
.scenario-card dd{margin:.25rem 0 0}
.boundary-note,.language-note{padding:1rem 1.2rem;background:var(--color-accent-wash);font-size:var(--text-sm)}
.question-group{margin-top:2.5rem}
.question-group h3{margin:0 0 .9rem;font-size:var(--text-sm);letter-spacing:.1em;text-transform:uppercase}
.question-list{display:grid;gap:.8rem}
.question-card{padding:1.4rem 1.5rem;border:1px solid var(--color-rule);border-radius:var(--radius-card);background:var(--color-paper-3)}
.question-card .phrase{margin:0;color:var(--color-accent);font-size:var(--text-lg);font-weight:650;line-height:1.45}
.question-card .purpose{margin:.6rem 0 0;color:var(--color-ink-2);font-size:var(--text-sm)}
.question-card .purpose strong{color:var(--color-ink)}
.phrase-list{display:grid;gap:.45rem}
.wording-coach{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--color-rule)}
.wording-coach h4{margin:0;color:var(--color-ink);font-size:var(--text-sm)}
.wording-coach>p{margin:.35rem 0 0;color:var(--color-ink-2);font-size:var(--text-sm)}
.wording-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.75rem;margin:1rem 0 0}
.wording-options div{padding:.8rem;background:var(--color-paper-2);border-radius:var(--radius-input)}
.wording-options dt{color:var(--color-accent);font-size:var(--text-xs);font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.wording-options dd{margin:.25rem 0 0;font-size:var(--text-sm);line-height:1.5}
.pattern-list{display:grid;gap:0;margin:2rem 0;padding:0;list-style:none;counter-reset:pattern}
.pattern-list li{display:grid;grid-template-columns:5rem 1fr;gap:1rem;align-items:baseline;padding:1rem 0;border-top:1px solid var(--color-rule)}
.pattern-list span{font-size:var(--text-xs);font-weight:700;letter-spacing:.1em;text-transform:uppercase}
.pattern-list p{margin:0;font-family:var(--font-display);font-size:var(--text-xl)}
.cta-panel{position:relative;display:grid;grid-template-columns:minmax(0,.9fr) minmax(18rem,1.1fr);gap:clamp(1.5rem,4vw,3.5rem);align-items:center;margin-top:3.5rem;padding:clamp(1.5rem,4vw,3rem)!important;overflow:hidden;border:1px solid #1c2f55!important;border-radius:var(--radius-card);background:#07101f;color:#f4f6fb;box-shadow:0 1.5rem 3.5rem rgba(7,16,31,.18)}
.cta-panel::before{content:"";position:absolute;inset:auto auto -9rem -7rem;width:19rem;aspect-ratio:1;border-radius:50%;background:rgba(112,158,255,.16);filter:blur(1px);pointer-events:none}
.cta-copy{position:relative;z-index:1}
.cta-panel .section-label{color:#8eb2ff}
.cta-panel h2{font-size:clamp(2rem,4vw,3.35rem)}
.cta-panel p{max-width:37rem;color:#b7c2d8}
.cta-actions{display:flex;align-items:center;flex-wrap:wrap;gap:1rem 1.25rem;margin-top:1.75rem}
.cta-store{height:3.25rem}
.cta-visual{position:relative;display:block;overflow:hidden;border:1px solid rgba(142,178,255,.28);border-radius:calc(var(--radius-card) - .2rem);background:#0b1528;box-shadow:0 1.5rem 3rem rgba(0,0,0,.32);transform:rotate(1.25deg);transition:transform var(--dur-short) var(--ease-out),box-shadow var(--dur-short) var(--ease-out)}
.cta-visual::after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 0 1px rgba(255,255,255,.04);pointer-events:none}
.cta-visual img{display:block;width:100%;height:auto}
.text-link{color:#e8edf8;font-weight:650}
.related a{display:block;margin-top:1.4rem;padding:1.4rem 1.5rem;border:1px solid var(--color-rule);background:var(--color-paper-3);font-size:var(--text-lg);font-weight:650;text-decoration:none}
.related a span{float:right}
.disclaimer{font-size:var(--text-sm);color:var(--color-ink-2)}
.disclaimer p{margin:0}
.about-guide ul{display:grid;gap:.55rem;margin:1.5rem 0 0;padding-left:1.2rem;color:var(--color-ink-2)}
.site-footer{padding-block:2rem;border-top:1px solid var(--color-rule);font-size:var(--text-sm)}
.footer-inner{display:flex;justify-content:space-between;gap:1.5rem}
.hub-hero{padding-block:clamp(4rem,10vw,8rem)}
.hub-hero h1{max-width:16ch}
.hub-hero h1 em{color:var(--color-accent);font-weight:400}
.hub-hero>p:last-child{max-width:46rem;margin:1.7rem 0 0;color:var(--color-ink-2);font-size:var(--text-xl)}
.guide-library{padding-block:4rem 7rem;border-top:1px solid var(--color-rule)}
.library-heading{display:grid;grid-template-columns:1fr 2fr;gap:2rem;align-items:start;margin-bottom:2.5rem}
.guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}
.guide-card{min-height:19rem;display:flex;flex-direction:column;padding:2rem;border:1px solid var(--color-rule);border-radius:var(--radius-card);background:var(--color-paper-3);text-decoration:none}
.guide-card .card-index{color:var(--color-accent);font-size:var(--text-xs);font-weight:700;letter-spacing:.12em}
.guide-card h3{max-width:16ch;margin:2.5rem 0 1rem;font-family:var(--font-display);font-size:var(--text-2xl);font-weight:400;line-height:1.05}
.guide-card p{margin:0;color:var(--color-ink-2);font-size:var(--text-sm)}
.guide-card .card-link{margin-top:auto;padding-top:1.5rem;color:var(--color-ink);font-weight:700}
.hub-boundary{display:grid;grid-template-columns:1fr 2fr;gap:2rem;padding-block:4rem 7rem;border-top:1px solid var(--color-rule)}
.hub-boundary p{max-width:42rem;margin:0}
@media (hover:hover){.button,.guide-card,.related a{transition:transform var(--dur-short) var(--ease-out),box-shadow var(--dur-short) var(--ease-out)}.button:hover,.guide-card:hover,.related a:hover{transform:translateY(-2px);box-shadow:0 .75rem 2rem var(--color-shadow)}.store-badge:hover{transform:translateY(-2px);filter:drop-shadow(0 .45rem .7rem rgba(7,16,31,.2))}.cta-visual:hover{transform:rotate(0) translateY(-3px);box-shadow:0 2rem 3.5rem rgba(0,0,0,.4)}}
@media (max-width:50rem){.shell{width:min(100% - 2rem,74rem)}.nav{min-height:4.25rem}.nav-links>a:first-child{display:none}.content{display:block;padding-top:2rem}.contents{position:static;display:flex;overflow-x:auto;gap:1rem;padding:0 0 1.5rem;border-bottom:1px solid var(--color-rule)}.contents p{display:none}.contents a{white-space:nowrap}.scenario-card dl{grid-template-columns:1fr}.cta-panel{grid-template-columns:1fr}.cta-visual{transform:none}.guide-grid{grid-template-columns:1fr}.library-heading,.hub-boundary{grid-template-columns:1fr}.footer-inner{display:grid}.footer-inner div{flex-wrap:wrap}}
@media (max-width:32rem){.brand span:last-child{font-size:var(--text-sm)}.nav-store{height:2.15rem}.hero{padding-block:3rem}.hero-actions{align-items:stretch}.button{width:100%}.pattern-list li{grid-template-columns:1fr;gap:.25rem}.cta-panel{margin-inline:-.25rem;padding:1.25rem!important}.cta-actions{align-items:flex-start;flex-direction:column}.cta-store{height:3rem}.question-card{padding:1.15rem}.wording-options{grid-template-columns:1fr}.footer-inner div{gap:1rem}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition-duration:.01ms!important}}

/* Landing launch badges; shared placement for Android and browser practice. */
.cta-panel .cta-actions{display:flex;flex-direction:column;align-items:flex-start}
.cta-launch{display:flex;align-items:center;flex-wrap:wrap;gap:var(--space-xs);max-width:100%}
.cta-launch .store-badge{height:3.5rem;flex:0 0 auto}
.cta-launch .store-badge img{display:block;height:100%;width:auto}
.cta-launch .launch-web{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-xs);height:3.5rem;padding:0 1.125rem;border:1px solid var(--color-rule-strong);border-radius:.375rem;background:var(--color-launch-bg);color:var(--color-paper-3);text-decoration:none;white-space:nowrap;font-family:var(--font-body);transition:background var(--dur-short) var(--ease-out)}
.cta-launch .launch-web:hover{background:var(--color-launch-hover)}
.cta-launch .launch-web:active{opacity:.85}
.cta-launch a:focus-visible{outline:3px solid var(--color-paper-3);outline-offset:4px}
.cta-launch .browser-icon{width:1.625rem;height:1.625rem;flex:0 0 auto}
.cta-launch .badge-copy{display:flex;flex-direction:column;align-items:flex-start;gap:.125rem;line-height:1.15}
.cta-launch .badge-copy>span{font-size:.9375rem;font-weight:650;letter-spacing:-.02em}
.cta-launch .badge-copy small{font-size:.625rem;font-weight:500;letter-spacing:.015em;opacity:.8}
@media(max-width:450px){.cta-launch{gap:var(--space-2xs)}.cta-launch .store-badge,.cta-launch .launch-web{height:3rem}.cta-launch .launch-web{padding:0 var(--space-xs);gap:var(--space-2xs)}.cta-launch .badge-copy>span{font-size:.8125rem}.cta-launch .badge-copy small{font-size:.5625rem}.cta-launch .browser-icon{width:1.375rem;height:1.375rem}}
@media(max-width:22rem){.cta-launch .store-badge,.cta-launch .launch-web{height:2.75rem}.cta-launch .launch-web{padding:0 var(--space-2xs);gap:.375rem}.cta-launch .badge-copy>span{font-size:var(--text-xs)}.cta-launch .badge-copy small{font-size:.5rem}.cta-launch .browser-icon{width:1.25rem;height:1.25rem}}
@media(prefers-reduced-motion:reduce){.cta-launch .launch-web{transition:none}}

/* Keep both badges side by side inside a narrow CTA copy column. */
.cta-panel .cta-actions{container-type:inline-size;width:100%}
@container(max-width:26rem){.cta-launch{gap:var(--space-2xs)}.cta-launch .store-badge,.cta-launch .launch-web{height:2.75rem}.cta-launch .launch-web{padding:0 var(--space-2xs);gap:var(--space-2xs)}.cta-launch .badge-copy>span{font-size:.8125rem}.cta-launch .badge-copy small{font-size:.5625rem}.cta-launch .browser-icon{width:1.375rem;height:1.375rem}}