/* TECHTWEETY | Design system v3 | visual reference: original Bubble guide and supplied brand vectors */
:root{
  --lime:#c4ee3d; --lime-strong:#b7ed20; --lime-faint:#f2fad8;
  --ink:#16213f; --navy:#14224c; --body:#44516a; --muted:#67748b;
  --canvas:#ffffff; --wash:#f7f9fb; --line:#e4e9ef; --charcoal:#20282b;
  --r-xs:10px; --r-sm:16px; --r-md:22px; --r-lg:30px; --r-xl:40px;
  --shadow:0 25px 64px rgba(31,47,67,.08); --shadow-card:0 15px 30px rgba(28,40,64,.09);
  --ease:cubic-bezier(.2,.75,.3,1);
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:106px}
body{margin:0;background:var(--canvas);color:var(--body);font-family:'Manrope','Avenir Next','Segoe UI',Arial,sans-serif;line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased;min-width:320px}
body.menu-open{overflow:hidden}
h1,h2,h3,h4,p{margin-top:0}
h1,h2,h3,h4{color:var(--navy);line-height:1.13;letter-spacing:-.047em}
h1{font-size:clamp(2.65rem,5.15vw,4.85rem);font-weight:800}
h2{font-size:clamp(2.05rem,3.3vw,3.25rem);font-weight:780}
h3{font-size:1.27rem;letter-spacing:-.025em;font-weight:760}
p{margin-bottom:1.3rem}
a{color:inherit;text-decoration:none}
img,svg{vertical-align:middle;max-width:100%}
img{height:auto}
button,input{font:inherit}
button{cursor:pointer}
button:disabled{cursor:not-allowed;opacity:.48}
:focus-visible{outline:3px solid #789b19;outline-offset:4px}
::selection{background:#dbf996;color:#172324}
[hidden]{display:none!important}
.skip-link{position:fixed;z-index:300;top:-100px;left:18px;padding:10px 16px;background:var(--charcoal);color:#fff;border-radius:8px}
.skip-link:focus{top:15px}
.wrap{width:min(1160px,calc(100% - 48px));margin-inline:auto}
.wrap-narrow{width:min(790px,calc(100% - 48px));margin-inline:auto}
.eyebrow{display:inline-flex;gap:9px;align-items:center;letter-spacing:.11em;text-transform:uppercase;color:#536524;font-weight:850;font-size:.73rem;line-height:1.3}
.eyebrow .sparkle{color:#98b915;font-size:1rem}
.small-meta{font-size:.82rem;color:var(--muted)}
.kicker{display:inline-flex;align-items:center;gap:9px;color:#475c21;background:#f0f9d6;border:1px solid #dbeea5;border-radius:100px;padding:8px 13px;font-weight:800;font-size:.77rem;letter-spacing:.03em}
.kicker--neutral{background:#f5f7fa;color:#536078;border-color:#e4eaf0}
.text-accent{position:relative;display:inline-block;z-index:0;white-space:nowrap}
.text-accent:after{content:'';position:absolute;left:-1%;right:-2%;height:12px;bottom:.07em;background:var(--lime);z-index:-1;transform:rotate(-1.1deg);border-radius:1px}
.muted{color:var(--muted)}
.btn{display:inline-flex;justify-content:center;align-items:center;gap:11px;border:1px solid transparent;border-radius:14px;padding:13px 20px;font-weight:850;font-size:.89rem;line-height:1.35;white-space:nowrap;min-height:50px;transition:transform .24s var(--ease),background .2s ease,box-shadow .24s ease,border-color .2s ease}
.btn:hover{transform:translateY(-2px)}
.btn svg{width:18px;height:18px;transition:transform .22s var(--ease)}
.btn:hover svg.arrow{transform:translateX(3px)}
.btn-lime{background:var(--lime);color:#1e2b29;box-shadow:0 10px 22px rgba(167,212,36,.22)}
.btn-lime:hover{background:#d2f667;box-shadow:0 14px 30px rgba(167,212,36,.30)}
.btn-dark{background:#202a34;color:#fff;box-shadow:0 10px 20px rgba(24,34,42,.12)}
.btn-dark:hover{background:#111922}
.btn-outline{color:var(--navy);border-color:#d3dce5;background:#fff}
.btn-outline:hover{background:#f4f8fa;border-color:#a9b5bf}
.btn-text{border:0;background:transparent;color:var(--navy);font-weight:850;display:inline-flex;align-items:center;gap:8px;padding:8px 0}
.btn-text svg{width:16px;height:16px;transition:transform .22s var(--ease)}
.btn-text:hover svg{transform:translateX(4px)}
.icon-stroke{fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.site-header{height:84px;position:sticky;top:0;z-index:100;display:flex;align-items:center;background:rgba(255,255,255,.93);border-bottom:1px solid rgba(222,228,231,.65);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:32px}
.launch-notice{background:#f2fad8;border-bottom:1px solid #dbe8b5;color:#34471b;font-size:.9rem;padding:12px 0;line-height:1.5}
.launch-notice .wrap{display:flex;gap:8px 18px;flex-wrap:wrap}
.brand img{width:184px;max-width:none;height:auto;display:block}
.nav-items{display:flex;align-items:center;gap:34px;margin-left:auto}
.nav-items a{color:#41506a;font-size:.9rem;font-weight:780;transition:color .2s}
.nav-items a:hover,.nav-items a[aria-current="page"]{color:#172344}
.nav-actions{display:flex;align-items:center;gap:14px}
.nav-help{min-height:45px;padding:10px 17px;border-radius:12px}
.nav-help img{width:17px;height:17px}
.mobile-menu-button{display:none;background:#f4f7f6;color:var(--navy);width:46px;height:46px;border:1px solid #e2e9ec;border-radius:12px;align-items:center;justify-content:center}
.mobile-menu-button svg{width:22px}
.hero{position:relative;overflow:hidden;padding:81px 0 74px;background:radial-gradient(circle at 89% 14%,rgba(216,247,117,.24),transparent 24%),linear-gradient(180deg,#fff 50%,#fcfdf8 100%)}
.hero:before{content:'';position:absolute;inset:auto -18% -330px;z-index:0;height:400px;background:radial-gradient(ellipse at center,#f2f8e6 0,rgba(250,251,249,0) 66%);pointer-events:none}
.hero-inner{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:35px;align-items:center;position:relative;z-index:1}
.hero-copy{padding:12px 0 0}
.hero h1{max-width:660px;margin:22px 0 23px}
.hero-lead{max-width:560px;color:#5a677b;font-size:clamp(1.02rem,1.5vw,1.19rem);line-height:1.8;margin-bottom:32px}
.hero-illustration{position:relative;min-height:450px;display:flex;align-items:center;justify-content:center}
.hero-halo{position:absolute;inset:20px 14px 23px 7px;border-radius:47% 53% 41% 59% / 55% 40% 60% 45%;background:linear-gradient(130deg,#f3f9df 0%,#fafeed 65%,#fff 100%);transform:rotate(-7deg);border:1px solid #edf5d0}
.hero-art{width:110%;max-width:540px;position:relative;z-index:2;filter:drop-shadow(0 18px 16px rgba(30,48,31,.045));animation:hero-float 8s ease-in-out infinite}
.mini-note{position:absolute;z-index:4;background:#fff;border:1px solid #e7ecee;box-shadow:0 15px 42px rgba(22,33,57,.1);padding:12px 17px;border-radius:14px;display:flex;align-items:center;gap:10px;font-size:.77rem;font-weight:850;color:var(--navy)}
.mini-note img{width:25px;height:25px}
.note-a{top:70px;right:0;transform:rotate(5deg)}
.note-b{bottom:64px;left:-32px;transform:rotate(-5deg)}
.decor-star{position:absolute;z-index:3;color:#a9d620;font-size:1.5rem}
.star-a{top:30px;left:30px}.star-b{right:55px;bottom:35px}
@keyframes hero-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.search-block{margin:0 0 14px}
.search-box{width:min(595px,100%);display:flex;align-items:center;padding:8px 8px 8px 17px;gap:12px;background:#fff;border:1px solid #e1e7eb;border-radius:17px;box-shadow:0 12px 35px rgba(39,50,69,.075)}
.search-box:focus-within{border-color:#abc82f;box-shadow:0 0 0 4px rgba(196,238,61,.20),0 12px 35px rgba(39,50,69,.075)}
.search-box>svg{width:21px;height:21px;color:#75839a}
.search-box input{flex:1;min-width:0;border:0;outline:0;color:var(--navy);font-size:.97rem;background:transparent;padding:12px 0}
.search-box input::placeholder{color:#8490a0}
.search-box .btn{min-height:44px;padding:10px 18px;border-radius:12px}
.quick-links{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:14px;font-size:.77rem;color:#7c879a}
.quick-links a{color:#526078;background:#f5f7f5;border:1px solid #e9eeea;border-radius:8px;padding:4px 10px;font-weight:750;transition:background .2s}
.quick-links a:hover{background:#edf6d4;color:var(--navy)}
.scroll-indicator{font-size:.76rem;color:#647185;display:flex;align-items:center;gap:9px;margin-top:45px}
.scroll-indicator svg{width:18px;height:18px}
.section{padding:94px 0}
.section-soft{background:var(--wash)}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:35px;margin-bottom:36px}
.section-head--center{text-align:center;flex-direction:column;align-items:center;gap:8px;justify-content:center}
.section-head h2{margin:8px 0 9px}
.section-head p{margin:0;max-width:680px;color:#6a7486;font-size:1.02rem;line-height:1.75}
.category-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.topic-card{background:#fff;border:1px solid #e4e9e8;border-radius:21px;overflow:hidden;display:flex;flex-direction:column;position:relative;min-height:365px;transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .22s ease}
.topic-card:hover{transform:translateY(-7px);box-shadow:var(--shadow-card);border-color:#cbda9c}
.topic-art{height:204px;display:flex;align-items:center;justify-content:center;padding:11px 18px 0;background:radial-gradient(ellipse at 55% 90%,rgba(210,240,121,.16),transparent 65%)}
.topic-art img{width:100%;height:100%;object-fit:contain;transition:transform .35s var(--ease)}
.topic-card:hover .topic-art img{transform:translateY(-5px) scale(1.025)}
.topic-content{padding:2px 25px 25px;display:flex;flex-direction:column;flex:1}
.topic-content h3{font-size:1.16rem;margin-bottom:10px;line-height:1.25}
.topic-content p{color:#718093;font-size:.86rem;line-height:1.65;margin:0 0 17px}
.topic-content .btn-text{margin-top:auto;align-self:flex-start;font-size:.85rem}
.topic-card .corner-dot{position:absolute;top:17px;right:20px;width:9px;height:9px;border-radius:50%;background:#c4ee3d;box-shadow:0 0 0 6px #f2fad8}
.view-all{text-align:center;margin-top:34px}
.why-section{background:#fff}
.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:30px}
.feature{padding:31px 30px;border:1px solid #e5eceb;border-radius:21px;background:linear-gradient(180deg,#fff 0%,#fbfcfa 100%)}
.feature-icon{display:flex;align-items:center;justify-content:center;width:51px;height:51px;border-radius:15px;background:#eaf7bc;color:var(--navy);margin-bottom:20px}
.feature-icon svg{width:26px;height:26px}
.feature h3{margin:0 0 11px}.feature p{font-size:.92rem;line-height:1.75;margin:0;color:#6a7787}
.preview-layout{display:grid;grid-template-columns:.96fr 1.04fr;align-items:center;gap:66px}
.preview-visual{border:1px solid #e2e8ea;padding:32px;border-radius:32px;background:linear-gradient(140deg,#f5f9e9,#f7fafb 70%);position:relative;box-shadow:0 24px 65px rgba(42,53,59,.06)}
.chat-mini{background:#fff;border:1px solid #e3e9ec;border-radius:19px;overflow:hidden;box-shadow:0 25px 46px rgba(26,41,45,.07)}
.chat-mini-header{border-bottom:1px solid #e6ecef;padding:15px 20px;display:flex;align-items:center;gap:11px;color:var(--navy);font-size:.89rem;font-weight:820}
.chat-mini-header img{width:27px;height:27px}
.online-indicator{width:8px;height:8px;background:#7bc045;border-radius:50%;box-shadow:0 0 0 4px #e9f5dd;margin-left:auto}
.chat-mini-body{padding:23px;display:flex;flex-direction:column;gap:16px}
.bubble-ai,.bubble-user{padding:13px 16px;font-size:.85rem;line-height:1.55;max-width:86%;border-radius:15px}
.bubble-ai{background:#e8f7ae;color:#223036;border-top-left-radius:4px}
.bubble-user{background:#f2f5f5;color:#4e5a6e;margin-left:auto;border-top-right-radius:4px}
.chat-mini-actions{padding:13px 20px 20px;display:flex;gap:8px}
.choice-pill{font-size:.75rem;font-weight:750;border:1px solid #d8e4ad;background:#fff;color:#495c20;border-radius:10px;padding:9px 15px}
.preview-copy h2{margin:15px 0 19px}
.preview-copy p{color:#647187;font-size:1.03rem;line-height:1.8;max-width:500px}
.tick-lines{display:grid;gap:15px;margin:23px 0 28px}
.tick{display:flex;gap:11px;align-items:center;font-size:.91rem;font-weight:720;color:#42526a}
.tick svg{color:#83b60c;width:20px;height:20px}
.dark-cta{position:relative;background:#1f2a30;color:#fff;border-radius:30px;padding:48px 56px;display:flex;justify-content:space-between;align-items:center;gap:40px;overflow:hidden}
.dark-cta:after{content:'';position:absolute;width:280px;height:280px;right:-25px;top:-120px;border:50px solid rgba(196,238,61,.10);border-radius:50%;pointer-events:none}
.dark-cta h2{color:#fff;max-width:650px;margin:11px 0 10px;font-size:clamp(2rem,3vw,3rem)}
.dark-cta p{color:#c2ced1;margin:0;max-width:600px}
.dark-cta .btn{position:relative;z-index:1}
.site-footer{background:#18232a;color:#c6d1d7;padding:65px 0 27px;margin-top:0}
.footer-top{display:grid;grid-template-columns:minmax(0,2fr) repeat(3,minmax(0,1fr));gap:54px}
.footer-brand{width:192px;display:block;margin-bottom:24px}
.footer-blurb{max-width:330px;color:#a5b0b8;line-height:1.7;font-size:.88rem}
.footer-label{color:#fff;font-size:.81rem;font-weight:850;letter-spacing:.08em;text-transform:uppercase;margin-bottom:19px}
.footer-list{display:grid;gap:11px;font-size:.86rem;color:#b3c0c8}
.footer-list a:hover{color:var(--lime)}
.footer-bottom{border-top:1px solid #35414b;margin-top:52px;padding-top:26px;display:flex;justify-content:space-between;gap:20px;align-items:center;color:#99a7b3;font-size:.77rem}
.footer-disclosure{color:#a0aeb5;max-width:640px}
.help-fab{position:fixed;right:28px;bottom:27px;z-index:90;display:flex;align-items:center;gap:12px;color:#fff;font-weight:880;background:#202a34;border:2px solid #fff;box-shadow:0 15px 34px rgba(50,67,42,.19);border-radius:100px;padding:13px 18px;transition:transform .24s var(--ease),box-shadow .24s ease}
.help-fab:hover{transform:translateY(-5px);box-shadow:0 20px 44px rgba(50,67,42,.25)}
.help-fab img{width:24px;height:24px}
body:has(.assist-page) .help-fab{display:none}
.help-fab span{font-size:.83rem}
/* Guidebook */
.inner-hero{background:radial-gradient(circle at 48% 16%,#f7fce8,transparent 34%),#fff;padding:67px 0 58px;text-align:center;border-bottom:1px solid #edf0f0}
.inner-hero .hero-icon{width:230px;height:230px;object-fit:contain;display:block;margin:0 auto 9px}
.inner-hero h1{font-size:clamp(2.6rem,4.5vw,4.3rem);margin:14px 0 18px}
.inner-hero p{max-width:660px;margin:0 auto;color:#64738a;font-size:1.05rem}
.guide-controls{display:flex;gap:16px;align-items:center;justify-content:space-between;margin-bottom:22px;flex-wrap:wrap}
.guide-controls .search-box{width:min(560px,100%);box-shadow:none}
.guide-controls .search-box button{min-width:48px}
.filter-row{display:flex;gap:9px;align-items:center;flex-wrap:wrap;margin-bottom:25px}
.filter-chip{font-size:.82rem;background:#fff;border:1px solid #e0e6e8;border-radius:100px;padding:8px 15px;color:#647186;font-weight:760;transition:background .2s}
.filter-chip:hover{background:#f1f7df}
.filter-chip.is-selected{background:#263334;color:#fff;border-color:#263334}
.results-message{color:#657387;font-size:.85rem}
.guides-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.guide-card{background:#fff;overflow:hidden;border:1px solid #e0e7e8;border-radius:19px;display:flex;flex-direction:column;min-height:405px;transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .2s}
.guide-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-card);border-color:#ccdba5}
.guide-card-art{height:220px;background:#f7f9f9;display:flex;align-items:center;justify-content:center;padding:8px 28px}
.guide-card-art img{height:100%;width:100%;object-fit:contain}
.guide-card-body{padding:24px;display:flex;flex-direction:column;flex:1}
.guide-card-tag{color:#7d9b1f;letter-spacing:.07em;font-weight:870;text-transform:uppercase;font-size:.7rem;margin-bottom:9px}
.guide-card h3{line-height:1.34;font-size:1.16rem;margin-bottom:11px}
.guide-card p{color:#748096;font-size:.87rem;line-height:1.6;margin-bottom:15px}
.guide-card .btn-text{margin-top:auto;align-self:flex-start}
.no-results{padding:50px 20px;background:#fff;border:1px dashed #c8d6dd;border-radius:21px;text-align:center;display:none}
.no-results.is-visible{display:block}
.category-banner{background:#fff;padding:48px 0 0}
.category-banner-art{display:flex;justify-content:center;align-items:center;max-height:280px;overflow:hidden}
.category-banner-art img{height:270px;width:330px;object-fit:contain}
.lime-backbar{background:var(--lime);margin-top:16px}
.lime-backbar a{display:inline-flex;align-items:center;gap:9px;font-size:.88rem;font-weight:830;color:var(--navy);min-height:51px}
.category-intro{text-align:center;margin:47px auto 47px;max-width:810px}
.category-intro h1{font-size:clamp(2.45rem,4.2vw,4.1rem);margin:0 0 20px}
.category-intro p{color:#657289;font-size:1.07rem;margin:0 auto;max-width:720px}
.category-empty{text-align:center;border:1px dashed #ccdae0;padding:50px;border-radius:24px;background:#fcfdfb}
.category-empty h3{margin:7px 0 11px}
/* Article */
.article-backdrop{background:linear-gradient(180deg,#f6f9f9 0,#fff 100%);border-bottom:1px solid #ebeff1;padding:29px 0 48px}
.breadcrumbs{display:flex;gap:9px;align-items:center;flex-wrap:wrap;font-size:.8rem;color:#667387;margin-bottom:32px}
.breadcrumbs a:hover{color:#567a06}
.breadcrumbs svg{width:12px;height:12px}
.article-hero{display:grid;grid-template-columns:1.2fr .7fr;gap:40px;align-items:center}
.article-hero h1{font-size:clamp(2.5rem,4vw,3.9rem);max-width:780px;margin:16px 0 17px}
.article-hero p{color:#5d6b7e;font-size:1.04rem;max-width:730px;margin-bottom:18px}
.article-meta{display:flex;gap:16px;align-items:center;flex-wrap:wrap;font-size:.8rem;color:#6b788a}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta svg{width:15px;height:15px}
.article-byline{font-size:.86rem!important;margin-top:12px;color:#526079}
.article-byline a{text-decoration:underline;text-underline-offset:3px}
.symptom-check{margin:28px 0}
.symptom-check>p{color:#596b7d}
.symptom-table{width:100%;table-layout:fixed;border-collapse:collapse;font-size:.94rem}
.symptom-table caption{text-align:left;font-size:.82rem;color:#596b7d;padding-bottom:8px}
.symptom-table th,.symptom-table td{text-align:left;vertical-align:top;border:1px solid #dce3e8;padding:14px;overflow-wrap:anywhere}
.symptom-table thead th{background:#f1f7df;color:#1d2c50}
.symptom-table tbody th{font-weight:600;background:#f8fafb}
.symptom-table a{text-decoration:underline;text-underline-offset:3px}
.article-hero-art{position:relative;display:flex;justify-content:center;align-items:center}
.article-hero-art:before{content:'';width:90%;height:82%;border-radius:49%;background:#eff9d1;position:absolute;transform:rotate(10deg)}
.article-hero-art img{height:330px;width:100%;object-fit:contain;position:relative;z-index:1}
.article-shell{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:62px;align-items:start;padding:55px 0 88px}
.article-body{min-width:0}
.answer-card{background:linear-gradient(145deg,#f2f9d8,#fbfdf6);border:1px solid #dceba9;border-radius:21px;padding:29px 32px;margin-bottom:33px}
.answer-card h2{font-size:1.3rem;margin:0 0 13px;letter-spacing:-.025em}
.answer-card p{font-size:1.01rem;line-height:1.8;color:#43526a;margin:0}
.article-body > h2{font-size:2.02rem;margin:40px 0 14px}
.article-body > p{font-size:1rem;line-height:1.9;color:#516074}
.steps-list{display:grid;gap:18px;margin:29px 0 42px}
.step-card{display:grid;grid-template-columns:52px 1fr;gap:19px;align-items:start;border:1px solid #e4eaf0;border-radius:18px;padding:27px 28px 22px;background:#fafbfc}
.step-num{width:48px;height:48px;border-radius:15px;background:var(--lime);display:flex;align-items:center;justify-content:center;font-size:1.15rem;font-weight:920;color:#253337;box-shadow:0 8px 16px rgba(177,223,42,.16)}
.step-card h3{font-size:1.19rem;margin:0 0 12px}
.step-card p{font-size:.96rem;color:#58677b;line-height:1.8;margin:0 0 13px}
.step-tip{display:flex;gap:9px;color:#60713e;background:#f1f8df;padding:12px 13px;border-radius:10px;font-size:.82rem;line-height:1.65}
.step-tip svg{width:18px;height:18px;flex-shrink:0;margin-top:1px}
.article-aside{position:sticky;top:113px}
.toc{padding:25px;border:1px solid #e2e8ec;border-radius:18px;background:#fff}
.toc-title{color:var(--navy);font-size:.85rem;font-weight:860;margin-bottom:13px}
.toc nav{display:grid;gap:10px}
.toc nav a{color:#68798e;font-size:.81rem;line-height:1.55;transition:color .2s}
.toc nav a:hover{color:#637e21}
.toc-help{margin-top:19px;background:#f2f9d7;border:1px solid #e1ecb6;border-radius:16px;padding:21px}
.toc-help img{width:31px;height:31px}
.toc-help h3{font-size:1rem;margin:13px 0 7px}
.toc-help p{color:#626d62;font-size:.82rem;line-height:1.6}
.toc-help .btn{width:100%;font-size:.78rem;padding:10px 9px;min-height:43px}
.article-faq{margin-top:48px}
.faq{border-bottom:1px solid #e4eaee;padding:0}
.faq:first-of-type{border-top:1px solid #e4eaee}
.faq summary{display:flex;justify-content:space-between;gap:16px;cursor:pointer;list-style:none;padding:20px 5px;font-weight:820;color:var(--navy)}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:'+';font-size:1.3rem;color:#6e9b19;line-height:1}
.faq[open] summary:after{content:'−'}
.faq p{padding:0 6px 19px;font-size:.9rem;color:#66768b;line-height:1.8;margin:0}
.reference-note{font-size:.82rem;color:#778396;margin:18px 0}
.reference-note a{font-weight:820;text-decoration:underline;text-underline-offset:3px}
.article-big-cta{display:flex;align-items:center;justify-content:space-between;gap:22px;padding:30px;background:#223035;border-radius:23px;color:#eaf2f3;margin:45px 0}
.article-big-cta h2{font-size:1.66rem;color:#fff;margin:7px 0 10px}
.article-big-cta p{font-size:.9rem;line-height:1.6;margin:0;color:#b6c6cc}
.article-big-cta .btn{flex-shrink:0}
.article-big-cta .eyebrow{color:#cee88d}
.related-section{background:#f8faf9;border-top:1px solid #e9edef;padding:73px 0}
.related-section h2{font-size:2.2rem}
/* Assistant page */
.assist-page{min-height:760px;background:radial-gradient(circle at 8% 2%,#f3fae2,transparent 35%),#fafcfa;padding:53px 0 88px}
.assist-intro{text-align:center;margin-bottom:36px}
.assist-intro h1{font-size:clamp(2.6rem,4.1vw,3.8rem);margin:15px 0 11px}
.assist-intro p{font-size:1rem;color:#6d798c;margin:0}
.assist-grid{display:grid;grid-template-columns:320px minmax(0,1fr);gap:24px;align-items:start}
.assist-sidebar{background:#fff;border:1px solid #e5eaed;border-radius:22px;padding:28px;box-shadow:0 16px 45px rgba(40,52,61,.035)}
.assist-sidebar img{width:165px;height:165px;object-fit:contain;display:block;margin:0 auto 7px}
.assist-sidebar h2{font-size:1.4rem;margin:9px 0 15px}
.assist-sidebar p{font-size:.89rem;color:#718093;margin-bottom:21px}
.promise-list{display:grid;gap:17px}
.promise{display:flex;align-items:flex-start;gap:10px;font-size:.84rem;font-weight:750;color:#4b5a6f;line-height:1.55}
.promise svg{width:19px;height:19px;color:#74a414;flex-shrink:0;margin-top:1px}
.assist-window{background:#fff;border:1px solid #e0e7eb;box-shadow:0 26px 55px rgba(38,49,53,.06);border-radius:23px;overflow:hidden;min-height:575px;display:flex;flex-direction:column}
.assist-window-head{padding:20px 26px;border-bottom:1px solid #e8edf1;display:flex;align-items:center;justify-content:space-between;gap:18px}
.assist-agent{display:flex;align-items:center;gap:11px;font-size:.94rem;font-weight:850;color:var(--navy)}
.assist-agent img{width:35px;height:35px}
.assist-agent small{font-weight:520;display:block;color:#7b8595;font-size:.71rem}
.assist-demo-badge{background:#f4f6f8;color:#727f92;font-size:.72rem;border-radius:7px;padding:7px 10px;font-weight:750}
.assist-progress{height:5px;background:#e9efe9}
.assist-progress span{display:block;height:100%;width:24%;background:var(--lime);transition:width .35s ease}
.assist-content{padding:40px 35px 25px;flex:1}
.assist-step-label{font-size:.76rem;text-transform:uppercase;letter-spacing:.12em;color:#779326;font-weight:870;margin-bottom:13px}
.assist-content h2{font-size:1.7rem;line-height:1.3;margin:0 0 16px}
.assist-content > p{font-size:.93rem;color:#6f7b90;margin-bottom:25px}
.assist-choice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.assist-choice{border:1px solid #dfe7ea;border-radius:14px;padding:16px 17px;text-align:left;background:#fff;display:flex;align-items:center;gap:13px;min-height:72px;color:#44546c;font-weight:780;transition:border-color .18s,background .18s,transform .18s}
.assist-choice:hover{border-color:#b7d75e;background:#fbfdf5;transform:translateY(-1px)}
.assist-choice.selected{border-color:#a5c647;background:#f3fadf;box-shadow:0 0 0 2px rgba(196,238,61,.17)}
.assist-choice svg{width:22px;height:22px;color:#657b35}
.assist-field{width:100%;padding:17px 18px;font-size:1rem;background:#fbfcfd;border:1px solid #dce5ea;border-radius:12px;outline:0;color:var(--navy)}
.assist-field:focus{border-color:#9dbf37;box-shadow:0 0 0 4px #f0f9d1}
.assist-window-foot{border-top:1px solid #e8edf1;padding:18px 25px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.assist-window-foot button{min-width:130px}
.assist-privacy{display:flex;align-items:center;gap:8px;font-size:.73rem;color:#8190a2}
.assist-privacy svg{width:15px;height:15px}
.assist-review{background:#f6f9f8;border:1px solid #e0e9e5;padding:21px;border-radius:15px;display:grid;gap:10px}
.assist-review p{font-size:.86rem;color:#55647b;margin:0}
.upload-preview{border:1px dashed #c9d8cf;background:#fbfdf8;border-radius:12px;padding:19px;text-align:center;color:#637186;font-size:.83rem}
.upload-preview label{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:820;border-radius:10px;background:#fff;border:1px solid #d7e5c1;padding:11px 15px;cursor:pointer;margin-bottom:7px}
.upload-preview svg{width:18px;height:18px}
.upload-preview input{position:absolute;opacity:0;pointer-events:none}
.upload-preview small{display:block;margin-top:3px}
.step-hint{font-size:.8rem;color:#84909f}
/* About/legal */
.text-page{padding:80px 0 98px}
.text-page h1{font-size:clamp(2.6rem,4.4vw,4rem);margin:14px 0 19px}
.text-page .lead{font-size:1.13rem;color:#617087;margin-bottom:31px}
.text-page h2{font-size:1.6rem;margin:35px 0 13px}
.text-page p,.text-page li{color:#596a7f;line-height:1.9}
.text-page ul{padding-left:22px}
.policy-alert{border-radius:13px;padding:16px 20px;background:#fff4db;border:1px solid #e9d5a9;font-size:.87rem;color:#6f592f;margin:30px 0}
/* Animation: never hide content if JS is unavailable */
.js-motion [data-reveal]{opacity:0;transform:translateY(19px);transition:opacity .65s var(--ease),transform .65s var(--ease)}
.js-motion [data-reveal].is-visible{opacity:1;transform:translateY(0)}
@media(min-width:1200px){.hero{padding-top:99px;padding-bottom:93px}}
@media(max-width:1090px){
 .nav-items{gap:19px}.header-inner{gap:18px}.brand img{width:164px}
 .hero-inner{grid-template-columns:1.05fr .95fr;gap:22px}.hero h1{font-size:clamp(2.7rem,5vw,4rem)}
 .hero-illustration{min-height:380px}.note-b{left:-4px}
 .article-shell{gap:32px}.article-hero-art img{height:280px}
 .preview-layout{gap:38px}
}
@media(max-width:860px){
 .site-header{height:73px}.brand img{width:164px}
 .mobile-menu-button{display:inline-flex}
 .nav-help{display:none}
 .nav-items{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;border-bottom:1px solid #dde6e6;box-shadow:0 20px 24px rgba(30,42,57,.08);padding:20px 24px 26px;flex-direction:column;align-items:stretch;gap:0}
 .nav-items.is-open{display:flex}
 .nav-items a{padding:13px 12px;border-bottom:1px solid #f0f3f3}
 .hero-inner{grid-template-columns:1fr;gap:4px}.hero{padding:65px 0 53px}
 .hero-copy{text-align:center}.hero h1,.hero-lead{margin-left:auto;margin-right:auto}
 .hero-illustration{min-height:390px;max-width:540px;margin:auto;width:100%}
 .search-box{margin-inline:auto}.quick-links{justify-content:center}.scroll-indicator{display:none}
 .category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .guides-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .preview-layout{grid-template-columns:1fr;gap:36px}.preview-visual{max-width:600px;width:100%;margin:auto}
 .preview-copy{text-align:center}.preview-copy p{max-width:620px;margin-inline:auto}.tick-lines{max-width:340px;margin-inline:auto;text-align:left}.preview-copy .btn{margin:auto}
 .article-hero{grid-template-columns:1fr;gap:10px}.article-hero-art img{height:210px}.article-hero-art:before{height:150px;width:290px;max-width:100%}
 .article-shell{grid-template-columns:1fr;padding-top:36px}.article-aside{display:none}
 .assist-grid{grid-template-columns:1fr}.assist-sidebar{display:none}
 .footer-top{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px}
}
@media(max-width:590px){
 body{font-size:16px}.wrap,.wrap-narrow{width:min(100% - 34px,1160px)}
 .site-header{height:70px}.header-inner{gap:7px}.brand img{width:153px}.mobile-menu-button{width:44px;height:44px}
 .nav-items{top:69px}
 .hero{padding:40px 0 49px}.hero h1{font-size:clamp(2.65rem,11vw,3.9rem);letter-spacing:-.057em;margin:17px auto}
 .hero-lead{font-size:1.01rem;line-height:1.72;margin-bottom:27px}
 .hero-illustration{min-height:305px}.hero-art{max-width:355px}
 .note-a{top:22px;right:0}.note-b{bottom:21px;left:0}
 .mini-note{font-size:.69rem;padding:8px 11px;gap:6px}.mini-note img{width:19px;height:19px}
 .search-box{border-radius:13px;padding:7px 7px 7px 12px;gap:7px}.search-box input{font-size:.82rem;padding:10px 0}.search-box .btn{padding:10px 11px;font-size:.79rem}
 .quick-links{gap:6px}.quick-links span{flex-basis:100%;text-align:center}
 .hero-copy{min-width:0}.text-accent{white-space:normal}
 .view-all .btn{max-width:100%;width:100%;white-space:normal;text-align:center}
 .section{padding:68px 0}.section-head{display:block;text-align:center;margin-bottom:28px}.section-head p{font-size:.96rem}
 .category-grid,.guides-grid,.feature-grid{grid-template-columns:1fr;gap:16px}
 .topic-card{min-height:auto}.topic-art{height:217px}.topic-content{padding:0 24px 23px}.topic-content h3{font-size:1.22rem}
 .guide-card{min-height:auto}.guide-card-art{height:205px}.guide-card-body{padding:23px}
 .feature{padding:26px}
 .preview-visual{padding:14px;border-radius:22px}.chat-mini-body{padding:18px;gap:11px}.chat-mini-actions{padding:12px 17px 18px}
 .dark-cta{padding:31px 26px;display:block;text-align:center;border-radius:24px}.dark-cta h2{font-size:2rem}.dark-cta .btn{margin-top:23px;width:100%}
 .site-footer{padding:53px 0 25px}.footer-top{grid-template-columns:1fr 1fr;gap:34px 21px}.footer-about{grid-column:1/-1}.footer-brand{width:180px}.footer-bottom{align-items:flex-start;flex-direction:column;gap:9px}
 .help-fab{display:none}.help-fab span{display:none}
 .inner-hero{padding:34px 0 42px}.inner-hero .hero-icon{width:160px;height:168px}.inner-hero h1{font-size:2.7rem}.inner-hero p{font-size:.96rem}
 .guide-controls{display:block}.guide-controls .search-box{width:100%}.results-message{margin-top:10px}
 .filter-row{gap:7px}.filter-chip{font-size:.75rem;padding:8px 12px}
 .category-banner{padding-top:25px}.category-banner-art img{height:215px}.category-intro{margin:34px auto 29px}.category-intro h1{font-size:2.5rem}.category-intro p{font-size:.94rem}
 .article-backdrop{padding:22px 0 33px}.breadcrumbs{margin-bottom:23px}.article-hero h1{font-size:2.55rem}
 .article-hero p{font-size:.97rem}.article-hero-art img{height:190px}.article-shell{padding-top:25px;padding-bottom:58px}
 .answer-card{padding:24px}.article-body > h2{font-size:1.7rem}.step-card{padding:22px 19px;grid-template-columns:41px 1fr;gap:13px}.step-num{width:40px;height:40px;border-radius:12px}
 .step-card h3{font-size:1.08rem}.step-card p{font-size:.91rem}
 .article-big-cta{display:block;padding:27px;text-align:center}.article-big-cta h2{font-size:1.52rem}.article-big-cta .btn{width:100%;margin-top:21px}
 .assist-page{padding:34px 0 70px}.assist-intro h1{font-size:2.45rem}.assist-intro p{font-size:.9rem}.assist-window{border-radius:17px;min-height:520px}
 .assist-window-head{padding:14px 15px}.assist-content{padding:29px 18px 25px}.assist-content h2{font-size:1.44rem}.assist-choice-grid{grid-template-columns:1fr}.assist-choice{min-height:60px;padding:13px 14px}
 .assist-window-foot{padding:13px 16px}.assist-window-foot button{min-width:98px}.assist-privacy{font-size:.68rem}
 .text-page{padding:51px 0}.text-page h1{font-size:2.6rem}
}
@media(prefers-reduced-motion:reduce){
 html{scroll-behavior:auto}
 *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
 .js-motion [data-reveal]{opacity:1!important;transform:none!important}
}

/* V4 | Editorial article and transparent product recommendation system */
.editorial-strip{display:flex;align-items:center;gap:10px 18px;justify-content:space-between;flex-wrap:wrap;font-size:.78rem;color:#516176;margin:0 0 19px;padding:0 2px}
.editorial-strip strong{color:#263654}
.answer-card .eyebrow{margin-bottom:10px}
.jump-guide{display:flex;align-items:center;flex-wrap:wrap;gap:7px 11px;padding:13px 0 22px;border-bottom:1px solid #e4eaf0;margin-bottom:32px}
.jump-guide strong{font-size:.81rem;color:#344154;margin-right:4px}
.jump-guide a{border-radius:100px;padding:7px 12px;font-weight:770;font-size:.78rem;color:#3d5421;background:#f5f9eb;border:1px solid #e0ebcb;transition:background .18s,transform .18s}
.jump-guide a:hover{background:#e9f9bc;transform:translateY(-1px)}
.before-card{background:#f8fafb;border:1px solid #e0e8ed;border-radius:19px;padding:26px 30px;margin:21px 0 34px}
.before-card h2{font-size:1.4rem;margin:0 0 13px}
.before-card ul,.context-links ul,.article-sources ul{padding:0;margin:0;list-style:none;display:grid;gap:10px}
.before-card li{padding-left:25px;position:relative;line-height:1.75;font-size:.95rem;color:#536479}
.before-card li:before{content:'✓';position:absolute;left:0;color:#5f8b11;font-weight:900}
.stop-card{margin:48px 0 35px;border:1px solid #e9dab9;background:#fffaf0;border-radius:19px;padding:25px 27px}
.stop-card h2{font-size:1.43rem;margin-bottom:12px}
.stop-card p{font-size:.94rem;color:#70624e;line-height:1.8;margin:8px 0}
.article-tools{padding:33px 0;margin-top:13px;border-top:1px solid #e6ebef}
.article-tools > h2,.article-faq h2,.context-links h2,.article-sources h2{font-size:clamp(1.35rem,2.1vw,1.82rem);margin:8px 0 12px}
.article-tools > p,.article-sources > p{font-size:.91rem;color:#596a7e;line-height:1.8}
.affiliate-note{background:#f5f7f3;border-left:3px solid #93b932;padding:12px 14px;font-size:.79rem;line-height:1.7;color:#51634b;margin:18px 0}
.tool-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;list-style:none;margin:18px 0 4px;padding:0}
.tool-card{padding:23px;border:1px solid #dfe8e9;border-radius:18px;background:linear-gradient(160deg,#fff,#f9fbf8);display:flex;flex-direction:column;min-width:0;box-shadow:0 9px 25px rgba(28,46,59,.035)}
.tool-topline{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:12px}
.tool-chip{border:1px solid #dceaa7;background:#f3fadf;border-radius:30px;padding:4px 9px;font-size:.65rem;font-weight:850;color:#526b1c}
.tool-num{font-size:.66rem;color:#778597}
.tool-card h3{font-size:1.11rem;line-height:1.33;margin:1px 0 10px}
.tool-card p{font-size:.8rem;line-height:1.65;color:#5c6a7a;margin:0 0 12px}
.tool-card .tool-if{background:#f0f5f7;padding:11px;border-radius:10px;color:#51616d}
.tool-card .tool-compat{margin-bottom:19px}
.tool-bottom{margin-top:auto;padding-top:10px;border-top:1px solid #e8eef1}
.tool-bottom a{white-space:normal;font-size:.76rem}
.tool-spec-link{display:inline-flex;align-items:center;gap:7px;color:#45651c;font-weight:810;text-decoration:underline;text-underline-offset:3px}
.context-links{padding:32px 0;border-top:1px solid #e7edf0}
.context-links a{display:inline-flex;align-items:center;gap:6px;flex-wrap:wrap;color:#325e83;text-decoration:underline;text-underline-offset:3px;font-weight:750;font-size:.92rem}
.article-sources{padding:29px 0;margin-top:39px;border-top:1px solid #e6ecee}
.article-sources li{font-size:.84rem;line-height:1.7}
.article-sources li a{display:inline-flex;gap:6px;align-items:baseline;text-decoration:underline;text-underline-offset:3px;color:#49658c}
.article-sources .editorial-meta{font-size:.75rem;color:#687586;border-top:1px dashed #e2e8ed;margin:20px 0 0;padding-top:12px}
.article-tools a.btn{padding:10px 12px;min-height:43px}
@media(max-width:860px){.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:590px){.before-card,.stop-card{padding:22px 20px}.jump-guide{margin-bottom:25px}.tool-grid{grid-template-columns:1fr;gap:12px}.tool-card{padding:21px}.editorial-strip{display:block}.article-tools{padding-top:26px}.article-tools > h2,.article-faq h2{font-size:1.5rem}}
@media(prefers-reduced-motion:reduce){.jump-guide a:hover{transform:none}}
/* Topic collections point to original guides and preserve ordinary page navigation. */
.topic-selector{padding-bottom:34px}.topic-selector h2{font-size:1.4rem}.topic-selector>p{max-width:75ch}.topic-selector ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;list-style:none;margin:22px 0 0;padding:0}.topic-selector li>a{display:flex;justify-content:space-between;gap:12px;padding:17px 20px;border:1px solid var(--border,#dbe3d5);border-radius:14px;background:#f5f9e9;color:#1b254f;font-weight:700;text-decoration:none}.topic-selector a:hover{background:#e8f5b7}.topic-selector a:focus-visible{outline:3px solid #2d496b;outline-offset:3px}@media(max-width:650px){.topic-selector ul{grid-template-columns:1fr}}