/* Lingotea — shared, dependency-free design system */
:root{--paper:#faf8f2;--white:#fffefb;--ink:#263b2e;--muted:#5e6a60;--green:#426b4b;--green-dark:#254d35;--sage:#e8eee2;--line:#dce1d5;--peach:#f1c5a4;--coral:#b94c3f;--gold:#e8ba69;--radius:24px;--sans:Arial,Helvetica,sans-serif;--serif:Georgia,'Times New Roman',serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}button,a,summary{-webkit-tap-highlight-color:transparent}a,button,summary{touch-action:manipulation}button{color:inherit}img,svg{max-width:100%;display:block}p{color:var(--muted);line-height:1.75;margin:0 0 20px}h1,h2,h3,h4{margin:0;font-weight:500}h1,h2{font-family:var(--serif);letter-spacing:-.045em;line-height:1.08}h2{font-size:clamp(36px,4.3vw,56px)}h3{font-size:21px;letter-spacing:-.035em;line-height:1.3}em{font-weight:400}::selection{background:#dce8cc}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--coral);outline-offset:5px;border-radius:5px}.container{width:min(1192px,calc(100% - 96px));margin-inline:auto}.section{padding:110px 0}.eyebrow{display:block;font-size:11px;font-weight:700;letter-spacing:.17em;text-transform:uppercase;color:var(--green);margin-bottom:20px}.eyebrow-line{display:flex;align-items:center;gap:12px}.eyebrow-line:before{content:'';width:28px;height:1px;background:currentColor}.section-intro{max-width:590px}.section-intro p{margin:22px 0 0}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:46px}.section-heading>p{max-width:330px;margin:0;font-size:14px}.button{display:inline-flex;align-items:center;justify-content:center;gap:22px;min-height:50px;padding:15px 24px;border-radius:7px;font-size:13px;font-weight:600;line-height:1.4;border:1px solid transparent;transition:background .2s,transform .2s;cursor:pointer}.button:hover{transform:translateY(-2px)}.button-primary{background:var(--green);color:white}.button-primary:hover{background:var(--green-dark)}.button-secondary{border-color:#cdd5c6;background:transparent}.button-secondary:hover{background:var(--sage)}.button-light{background:var(--paper);color:var(--green-dark)}.button .arrow{font-size:19px;font-weight:400}.text-link{display:inline-flex;align-items:center;gap:16px;font-size:13px;font-weight:600;padding-block:12px;border-bottom:1px solid currentColor}.text-link:hover{color:var(--coral)}.skip-link{position:fixed;z-index:100;top:10px;left:20px;transform:translateY(-160%);background:var(--ink);color:white;padding:14px}.skip-link:focus{transform:none}
.site-header{position:sticky;top:0;z-index:30;background:#faf8f2f5;border-bottom:1px solid #e3e5da;backdrop-filter:blur(14px)}.header-inner{height:88px;display:flex;align-items:center;justify-content:space-between;gap:25px}.brand{display:inline-flex;align-items:center;gap:10px;font-size:27px;letter-spacing:-1.3px;font-weight:700;flex-shrink:0}.brand-symbol{width:27px;height:31px;color:var(--green)}.brand-dot{color:var(--green);margin-left:-10px}.main-nav{display:flex;align-items:center;gap:31px;font-size:12px;font-weight:500}.main-nav>a{padding:17px 0}.main-nav>a:hover{color:var(--green);text-decoration:underline;text-underline-offset:6px}.header-actions{display:flex;align-items:center;gap:20px}.locale-switch{display:flex;align-items:center;gap:8px;font-size:11px;white-space:nowrap}.locale-switch a{display:grid;place-items:center;min-width:34px;min-height:44px;color:var(--muted)}.locale-switch a[aria-current]{font-weight:700;color:var(--ink)}.locale-switch a:hover{text-decoration:underline}.locale-divider{height:12px;border-left:1px solid #bdc6b9}.header-actions>.button{min-height:44px;font-size:12px;padding:11px 17px;gap:14px}.menu-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;background:transparent;border:1px solid var(--line);border-radius:6px}.menu-toggle svg{width:20px;height:20px}
.hero{padding:78px 0 73px;overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:45px;align-items:center}.hero-copy{padding-bottom:12px}.hero .eyebrow{font-size:10px;letter-spacing:.15em}.hero h1{font-size:clamp(54px,5.9vw,80px);margin:24px 0}.hero h1 em{color:var(--green);position:relative}.hero-copy>p{max-width:435px;font-size:15px;line-height:1.85}.hero-actions{display:flex;gap:22px;align-items:center;flex-wrap:wrap;margin-top:30px}.hero-footnote{display:flex;align-items:center;gap:9px;font-size:11px;color:var(--muted);margin-top:26px}.hero-footnote svg{width:15px;height:15px;color:var(--green)}.pill{display:inline-flex;align-items:center;gap:8px;background:#e8eee1;border:1px solid #dae2d1;color:#426044;border-radius:30px;padding:8px 12px;font-size:10px;font-weight:600;letter-spacing:.03em}.pill:before{content:'';width:5px;height:5px;border-radius:50%;background:var(--green)}.hero-art{position:relative;min-width:0;height:490px}.hero-art:before{content:'';position:absolute;background:#e7ebdd;width:410px;height:410px;border-radius:50%;left:50%;top:30px;transform:translateX(-50%)}.art-ring{position:absolute;border:1px solid #cbd3bc;width:460px;height:460px;border-radius:50%;left:50%;top:5px;transform:translateX(-50%)}.art-ring:before{content:'';position:absolute;background:var(--gold);width:13px;height:13px;border:5px solid var(--paper);box-sizing:content-box;border-radius:50%;left:34px;top:66px}.art-label{position:absolute;top:13px;right:13px;font-size:9px;letter-spacing:.16em;color:#60705c;transform:rotate(10deg)}.art-spark{position:absolute;right:9px;top:73px;font-size:51px;color:var(--green);font-weight:400}.word-card{position:absolute;z-index:3;top:65px;left:50%;width:274px;height:337px;border-radius:16px;background:#fffdf7;border:1px solid #e1dfd1;box-shadow:0 25px 45px #36432918;transform:translateX(-50%) rotate(-7deg);padding:25px;text-align:center}.word-card:before{content:'';position:absolute;inset:10px;border:1px solid #e9e6da;border-radius:9px;pointer-events:none}.word-card-top{position:relative;display:flex;align-items:center;justify-content:space-between;font-size:9px;letter-spacing:.09em;text-transform:uppercase;color:#7b7a69}.word-card-top svg{width:15px;height:18px;color:var(--green)}.word-card .hanzi{font-family:'Songti SC','Noto Serif CJK SC',serif;font-size:82px;letter-spacing:.06em;color:var(--green-dark);margin:39px 0 5px;line-height:1.15}.word-card .pinyin{font-family:var(--serif);font-style:italic;font-size:21px;color:#69765f;margin:12px 0}.word-card .translation{font-size:12px;color:var(--ink);margin-top:17px}.word-card-rule{height:1px;background:var(--line);margin:26px 5px 13px}.word-card-bottom{font-size:8px;color:#7b7a69;letter-spacing:.1em;text-transform:uppercase}.floating-note{position:absolute;z-index:4;display:flex;align-items:center;gap:12px;padding:15px 18px;background:white;border:1px solid #e8e6dd;border-radius:11px;box-shadow:0 10px 30px #37422b0a;font-size:11px;line-height:1.45}.floating-note small{display:block;color:var(--muted);font-size:9px;margin-top:3px}.floating-note .note-icon{display:grid;place-items:center;background:#eff2e8;width:34px;height:34px;border-radius:50%;color:var(--green);font-size:18px}.floating-note.first{left:-14px;top:160px;transform:rotate(-5deg)}.floating-note.second{right:-5px;bottom:46px;transform:rotate(5deg)}.art-peach{position:absolute;right:20px;bottom:97px;width:119px;height:119px;border-radius:50%;background:var(--peach)}.art-leaves{position:absolute;width:155px;height:165px;left:9px;bottom:4px;transform:rotate(-8deg);color:#81966d}.art-caption{position:absolute;bottom:3px;left:50%;transform:translateX(-50%);white-space:nowrap;font-size:9px;letter-spacing:.07em;color:#6b7264}.brand-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.brand-strip-inner{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:24px 0}.brand-strip-title{font-family:var(--serif);font-size:21px;font-style:italic;color:var(--green)}.brand-value{display:flex;align-items:center;gap:10px;font-size:11px;color:#5d695b}.brand-value svg{width:18px;height:18px;color:var(--green)}
.philosophy-grid{display:grid;grid-template-columns:1fr 1fr;gap:115px;align-items:center}.philosophy-copy h2{max-width:450px}.philosophy-copy p{max-width:430px;font-size:14px;margin-top:24px}.philosophy-copy .small-signature{font-size:12px;color:var(--green);font-family:var(--serif);font-style:italic;margin-top:28px}.philosophy-art{position:relative;min-height:330px;background:#f0eee4;border-radius:150px 150px 16px 16px;display:flex;align-items:center;justify-content:center;gap:15px;padding:30px}.philosophy-art:before{content:'✳';position:absolute;top:33px;left:50%;font-size:38px;color:#bac9a7;transform:translateX(-50%)}.idea-card{width:176px;min-height:186px;border-radius:9px;background:var(--white);padding:22px 17px;transform:rotate(-7deg);box-shadow:0 12px 20px #32412b0a}.idea-card:nth-child(2){transform:translateY(21px) rotate(7deg);background:#dfe8d4}.idea-card>span{font-family:var(--serif);font-size:42px;color:var(--green)}.idea-card h3{font-size:16px;margin:17px 0 9px}.idea-card p{font-size:11px;line-height:1.6;margin:0}.philosophy-caption{font-family:var(--serif);font-style:italic;font-size:11px;position:absolute;bottom:18px;right:25px;color:#67715f}.approach{background:#eef1e7}.approach .section-heading{margin-bottom:42px}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}.step{position:relative;padding:25px 0 0;border-top:1px solid #cbd3c0}.step-number{font-size:11px;color:var(--green);letter-spacing:.07em}.step-arrow{position:absolute;right:0;top:18px;color:#73816a;font-size:22px}.step h3{font-family:var(--serif);font-size:27px;margin:25px 0 13px}.step p{font-size:12px;line-height:1.8;margin:0;max-width:225px}.section-note{margin:35px 0 0;font-size:10px;color:#64715b}.products .section-heading{margin-bottom:35px}.featured-product{display:grid;grid-template-columns:1.1fr 1fr;background:#e7ecdf;min-height:390px;border:1px solid #dfe4d6;border-radius:var(--radius);overflow:hidden}.product-copy{padding:49px 53px}.product-copy .eyebrow{font-size:9px;margin-bottom:25px}.product-copy h3{font-size:34px;font-weight:600;letter-spacing:-1.5px}.product-copy h3 span{font-family:var(--serif);font-weight:400;color:var(--green)}.product-copy p{font-size:13px;max-width:345px;margin:18px 0 22px}.product-art{position:relative;display:grid;place-items:center;min-height:350px;background:#e0e6d5}.product-art:before,.product-art:after{content:'';position:absolute;width:270px;height:270px;border:1px solid #c6d0b8;border-radius:50%}.product-art:after{width:340px;height:340px}.mini-word-card{position:relative;z-index:1;background:#fffaf0;width:186px;height:236px;display:flex;flex-direction:column;justify-content:center;align-items:center;border-radius:12px;transform:rotate(9deg);box-shadow:0 16px 30px #43543012}.mini-word-card .hanzi{font-family:serif;font-size:68px;color:var(--coral);line-height:1.2}.mini-word-card .pinyin{font-size:16px;font-family:var(--serif);font-style:italic;margin-top:10px}.mini-word-card small{font-size:10px;color:var(--muted);margin-top:15px}.product-art-tag{position:absolute;z-index:3;left:33px;bottom:57px;background:var(--peach);width:74px;height:74px;border-radius:50%;display:grid;place-content:center;text-align:center;font-size:10px;line-height:1.5;transform:rotate(-12deg);color:#573d28}.future-products{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:18px}.future-product{border:1px solid var(--line);border-radius:14px;padding:25px 28px;display:flex;align-items:center;gap:20px}.future-character{font-family:serif;font-size:31px;color:#768467;width:40px;text-align:center}.future-product h3{font-size:15px;font-weight:600;letter-spacing:-.3px}.future-product h3 span{font-weight:400}.future-product small{display:block;font-size:10px;color:var(--muted);margin-top:6px}.status{margin-left:auto;padding:6px 8px;border:1px solid var(--line);border-radius:20px;font-size:8px;white-space:nowrap;color:#616b59}.products-note{font-size:10px;color:var(--muted);margin:17px 0 0}.moments{background:#2c4a35;color:var(--paper);overflow:hidden}.moments .eyebrow{color:#c9d7b9}.moments h2 em{color:#cadbb4}.moments .section-heading>p{color:#d0dac8}.moments-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.moment-visual{position:relative;height:205px;border-radius:90px 90px 8px 8px;display:grid;place-items:center;overflow:hidden;background:#e4e8d7;margin-bottom:24px;color:#476046}.moment-card:nth-child(2) .moment-visual{background:#edc8a9}.moment-card:nth-child(3) .moment-visual{background:#e7d9b5}.moment-visual>svg{width:165px;height:145px}.moment-label{position:absolute;bottom:15px;left:18px;font-size:8px;letter-spacing:.13em;text-transform:uppercase;color:#3d553b}.moment-card h3{font-family:var(--serif);font-size:25px;margin-bottom:10px}.moment-card p{color:#d0dac8;font-size:12px;line-height:1.8;max-width:300px;margin-bottom:0}.moments .section-note{color:#d0dac8}.faq-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:100px}.faq-intro p{font-size:13px;margin-top:23px;max-width:270px}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line)}summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:77px;padding:21px 0;cursor:pointer;font-size:14px;font-weight:500;line-height:1.5}summary::-webkit-details-marker{display:none}summary:after{content:'+';font-size:23px;font-weight:400;color:var(--green);flex-shrink:0}details[open] summary:after{content:'−'}details>p{font-size:12px;line-height:1.9;padding:0 35px 23px 0;margin:0}details a{text-decoration:underline;text-underline-offset:3px}.closing{padding:0 0 95px}.closing-inner{position:relative;overflow:hidden;display:flex;align-items:center;justify-content:space-between;gap:30px;background:#e9eddd;border-radius:20px;padding:56px 58px}.closing h2{font-size:clamp(33px,4vw,49px);max-width:620px}.closing p{font-size:12px;margin:17px 0 0}.closing .button{flex-shrink:0}.closing-flower{position:absolute;font-size:200px;right:200px;top:0;line-height:1;color:#dce4ce;pointer-events:none}.closing-copy,.closing .button{position:relative;z-index:1}.site-footer{border-top:1px solid var(--line);padding:54px 0 24px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}.footer-about p{max-width:240px;font-size:12px;margin-top:17px}.footer-col h3{font-size:10px;letter-spacing:.04em;font-weight:700;margin:8px 0 21px}.footer-col a{display:block;font-size:11px;line-height:1.7;margin-bottom:12px;color:var(--muted)}.footer-col a:hover{color:var(--green);text-decoration:underline}.footer-bottom{border-top:1px solid var(--line);margin-top:42px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;font-size:9px;color:var(--muted)}.footer-bottom span:last-child{font-family:var(--serif);font-style:italic;font-size:12px}
/* Product-specific storytelling and the small, real vocabulary exploration. */
.product-breadcrumb{font-size:10px;color:var(--muted);display:flex;gap:10px;align-items:center;margin-bottom:24px}.product-breadcrumb a{text-decoration:underline;text-underline-offset:3px}.product-hero h1{font-size:clamp(49px,5.4vw,73px)}.product-identity{font-size:16px;font-weight:700;letter-spacing:-.5px;margin:0 0 17px;color:var(--ink)}.product-identity span{font-weight:400}.product-hero .hero-art:before{background:#eee2d3}.product-hero .art-ring{border-color:#dfd0bb}.product-hero .word-card .hanzi{color:var(--coral)}.benefits-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:35px;margin-top:43px}.benefit{padding-top:25px;border-top:1px solid var(--line)}.benefit-icon{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:var(--sage);color:var(--green);font-family:var(--serif);font-size:23px;margin-bottom:23px}.benefit h3{font-size:18px;margin-bottom:13px}.benefit p{font-size:12px;line-height:1.8;margin:0;max-width:310px}.experience{background:#efece1}.experience-grid{display:grid;grid-template-columns:1fr 1fr;gap:95px;align-items:center}.experience-copy p{font-size:13px;margin:23px 0}.experience-disclaimer{border-left:2px solid #c2cdb2;padding-left:15px;font-size:11px!important;color:#5c6556}.experience-card{background:#fffdf7;border-radius:17px;padding:30px;text-align:center;box-shadow:0 18px 35px #3d442b0a;border:1px solid #e0dfd2}.experience-card-top{display:flex;align-items:center;justify-content:space-between;font-size:9px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted)}.experience-card .hanzi{font-family:serif;font-size:78px;line-height:1.2;color:var(--coral);margin:34px 0 9px}.experience-card .pinyin{font-family:var(--serif);font-style:italic;font-size:23px;color:var(--green)}.experience-card .translation{font-size:14px;margin:15px 0 26px;color:var(--ink)}.word-insight{font-size:12px;line-height:1.8;padding:19px;background:#eff2e7;border-radius:8px;color:#516248}.word-options{display:flex;justify-content:center;gap:9px;flex-wrap:wrap;margin-top:23px}.word-options button{padding:10px 15px;min-height:44px;min-width:55px;background:transparent;border:1px solid #cdd4c2;border-radius:6px;font-size:15px;cursor:pointer}.word-options button[aria-pressed=true]{background:var(--green);color:white;border-color:var(--green)}.word-options button:hover{border-color:var(--green)}.js-word-options{display:none}.js .js-word-options{display:flex}.experience-card small{display:block;font-size:9px;color:var(--muted);margin-top:20px}.product-status{font-size:10px;margin-top:15px;color:var(--muted)}
/* Neutral root: a distinct bilingual doorway, not a duplicate English homepage. */
.entry-header{height:90px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.entry-header>span{font-size:10px;letter-spacing:.12em;color:var(--muted);text-transform:uppercase}.entry-main{padding:60px 0 65px;min-height:calc(100svh - 158px);display:flex;align-items:center}.entry-grid{display:grid;grid-template-columns:1.05fr 1fr;align-items:center;gap:65px;width:100%}.entry-main h1{font-size:clamp(54px,6.2vw,83px);margin:22px 0 25px}.entry-main h1 em{color:var(--green)}.entry-description{font-size:14px;max-width:395px}.entry-description [lang=vi]{display:block;font-size:12px;margin-top:5px}.locale-choices{display:flex;gap:13px;margin-top:30px}.locale-choice{min-width:163px;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px 20px;border:1px solid #cbd3c2;border-radius:8px;background:#fffdf7;font-size:14px;transition:background .2s}.locale-choice:first-child{background:var(--green);color:white;border-color:var(--green)}.locale-choice:hover{background:#e2e8d6}.locale-choice:first-child:hover{background:var(--green-dark)}.locale-choice small{display:block;font-size:9px;margin-top:6px;opacity:.85}.entry-footer{display:flex;align-items:center;justify-content:space-between;gap:25px;border-top:1px solid var(--line);padding:23px 0;font-size:10px;color:var(--muted)}.entry-footer div{display:flex;gap:23px}.entry-footer a:hover{text-decoration:underline}
@media(min-width:1500px){.hero{padding-block:100px}.hero-grid{gap:90px}.hero h1{font-size:82px}.hero-art{height:510px}}
@media(max-width:1100px){.container{width:calc(100% - 64px)}.main-nav{gap:20px}.header-actions{gap:11px}.header-actions>.button{display:none}.hero-grid{gap:20px}.hero h1{font-size:64px}.hero-art{transform:scale(.9);margin-inline:-15px}.philosophy-grid{gap:60px}.faq-layout{gap:60px}.experience-grid{gap:55px}.product-copy{padding:42px 35px}.entry-grid{gap:25px}.entry-main h1{font-size:67px}}
@media(max-width:800px){.container{width:calc(100% - 48px)}.header-inner{height:76px}.main-nav{gap:18px;font-size:11px}.brand{font-size:24px}.header-actions{gap:5px}.locale-switch{gap:2px}.hero{padding:55px 0}.hero-grid{gap:15px}.hero h1{font-size:54px}.hero-copy>p{font-size:13px}.hero-actions{gap:16px}.hero-actions .button{padding:13px 17px;gap:12px;font-size:12px}.hero-art{height:430px;transform:scale(.78);margin-inline:-35px}.floating-note.first{left:-28px}.floating-note.second{right:-28px}.hero-footnote{font-size:9px}.brand-strip-title{font-size:18px}.brand-value{font-size:9px;gap:5px}.section{padding:80px 0}.philosophy-grid{gap:35px}.philosophy-art{padding:20px;gap:10px;min-height:315px}.idea-card{padding:18px 13px}.steps{gap:20px}.step h3{font-size:23px}.section-heading>p{max-width:260px;font-size:12px}.product-copy{padding:35px 28px}.product-copy h3{font-size:29px}.product-art-tag{left:15px;bottom:45px}.future-product{padding:21px 18px;gap:10px}.status{font-size:7px}.moments-grid{gap:19px}.moment-visual{height:170px}.moment-visual>svg{width:140px}.faq-layout{gap:45px}.closing-inner{padding:39px 34px}.closing .button{padding:14px 17px;font-size:11px;gap:10px}.footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:30px}.footer-col:last-child{grid-column:2/4}.entry-grid{gap:20px}.entry-main h1{font-size:56px}.locale-choice{min-width:0;flex:1;padding:16px 14px;font-size:12px;gap:15px}.entry-main .hero-art{margin-inline:-25px}.experience-grid{gap:35px}.experience-card{padding:23px}.product-hero h1{font-size:51px}}
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