/* =========================================================
   Studystics: design system
   Χρώματα: τρεις αποχρώσεις μπλε (Learn / Understand / Apply)
   Γραμματοσειρές: Outfit (λατινικά) + Commissioner (ελληνικά)
   ========================================================= */
:root{
  --learn:#2B36C2;      /* Μαθηματικά */
  --understand:#5A6FF0; /* Στατιστική & Δεδομένα */
  --apply:#A3B3FF;      /* Python, Data Science & AI */
  --deep:#1F2A9E;       /* κουμπιά, έμφαση */
  --deep-hover:#18227F;
  --ink:#1F2340; --ink-2:#4A4F6A; --ink-3:#6B6F86;
  --bg:#FFFBF6; --bg-2:#F6F2EB; --card:#FFFFFF; --line:#ECE6DD;
  --soft-1:#E8EAFB; --soft-2:#ECEFFE; --soft-3:#EEF1FF;
  --radius:18px; --radius-lg:24px;
  --shadow:0 1px 2px rgba(31,35,64,.05),0 8px 24px rgba(31,35,64,.06);
  --font:Outfit,Commissioner,system-ui,-apple-system,"Segoe UI",sans-serif;
  --max:1120px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.6 var(--font)}
img,svg{max-width:100%;display:block}
a{color:var(--deep)}
a:hover{color:var(--deep-hover)}
:focus-visible{outline:3px solid var(--deep);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-9999px;top:8px;background:var(--deep);color:#fff;padding:10px 14px;border-radius:10px;z-index:100}
.skip:focus{left:12px}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}
.section{padding:84px 0}
.section.alt{background:var(--bg-2)}
.eyebrow{font-weight:600;font-size:13px;letter-spacing:.09em;text-transform:uppercase;color:var(--understand);margin:0 0 10px}
h1,h2,h3{line-height:1.12;letter-spacing:-.02em;margin:0 0 14px;font-weight:700}
h1{font-size:clamp(36px,6vw,62px)}
h2{font-size:clamp(28px,4.2vw,42px)}
h3{font-size:clamp(20px,2.4vw,24px);letter-spacing:-.01em}
p{margin:0 0 14px}
.lede{font-size:clamp(17px,2vw,20px);color:var(--ink-2);max-width:640px}
.muted{color:var(--ink-3)}
.center{text-align:center}
.center .lede{margin-left:auto;margin-right:auto}

/* Κουμπιά */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:16px;text-decoration:none;
  padding:14px 22px;border-radius:999px;border:2px solid transparent;transition:background .2s,transform .2s,box-shadow .2s;cursor:pointer;font-family:inherit}
.btn-primary{background:var(--deep);color:#fff;box-shadow:0 6px 16px rgba(31,42,158,.25)}
.btn-primary:hover{background:var(--deep-hover);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--understand);color:var(--ink)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,251,246,.92);backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:border-color .2s}
.site-header.scrolled{border-color:var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px}
.brand img{height:42px;width:auto}
.nav-links{display:flex;align-items:center;gap:26px;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--ink);text-decoration:none;font-weight:500;font-size:16px}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--deep)}
.nav-links a[aria-current="page"]{text-decoration:underline;text-underline-offset:6px;text-decoration-thickness:2px}
.nav-cta{padding:10px 18px;font-size:15px}
.menu-btn{display:none;background:none;border:0;padding:8px;cursor:pointer;color:var(--ink)}
.menu-btn svg{width:28px;height:28px}

/* Hero */
.hero{padding:56px 0 72px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1 .hl{color:var(--deep)}
.quote{font-style:italic;color:var(--ink-3);margin-top:22px;font-size:16px}
.hero-art{position:relative}
.hero-squares{display:grid;grid-template-columns:1fr 1fr;gap:14px;aspect-ratio:1/1;max-width:400px;margin-left:auto}
.trust{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:28px;padding:0;list-style:none;color:var(--ink-2);font-size:15px}
.trust li{display:flex;align-items:center;gap:8px}
.trust li::before{content:"";width:10px;height:10px;border-radius:3px;background:var(--understand)}

/* Κάρτες πυλώνων */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px}
.pillar{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;display:flex;flex-direction:column;
  text-decoration:none;color:var(--ink);transition:transform .2s,box-shadow .2s;box-shadow:var(--shadow)}
.pillar:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(31,35,64,.12);color:var(--ink)}
.pillar .chip{width:46px;height:46px;border-radius:14px;margin-bottom:18px}
.pillar.p1 .chip{background:var(--learn)} .pillar.p2 .chip{background:var(--understand)} .pillar.p3 .chip{background:var(--apply)}
.pillar ul{list-style:none;padding:0;margin:4px 0 20px;color:var(--ink-2)}
.pillar li{padding:4px 0}
.pillar .more{margin-top:auto;font-weight:600;color:var(--deep)}

/* Μέθοδος */
.method{display:grid;grid-template-columns:minmax(260px,380px) 1fr;gap:44px;align-items:center;margin-top:36px}
.mgrid{display:grid;grid-template-columns:1fr 1fr;gap:14px;aspect-ratio:1/1}
.tile{all:unset;box-sizing:border-box;cursor:pointer;border-radius:var(--radius);display:flex;flex-direction:column;justify-content:flex-end;
  padding:18px;color:#fff;position:relative;transition:transform .25s,box-shadow .25s,opacity .25s}
.tile .word{font-weight:700;font-size:clamp(20px,2.6vw,27px);line-height:1.1}
.tile .gr{font-size:14px;opacity:.9}
.tile .seen{position:absolute;top:12px;right:14px;width:22px;height:22px;border-radius:50%;background:rgba(255,255,255,.25);
  display:grid;place-items:center;font-size:13px;opacity:0;transition:opacity .2s}
.tile.visited .seen{opacity:1}
.t-learn{background:var(--learn);grid-column:1;grid-row:1}
.t-understand{background:var(--understand);grid-column:1;grid-row:2}
.t-apply{background:var(--apply);color:var(--ink);grid-column:2;grid-row:2}
.t-apply .seen{background:rgba(15,26,61,.12)}
.tile:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(31,35,64,.16)}
.tile:focus-visible{outline:3px solid var(--ink);outline-offset:3px}
.tile[aria-selected="true"]{transform:translateY(-3px) scale(1.02);box-shadow:0 14px 30px rgba(31,35,64,.22)}
.mgrid:has(.tile[aria-selected="true"]) .tile:not([aria-selected="true"]){opacity:.55}
.t-apply::before{content:"↑";position:absolute;top:-21px;left:50%;transform:translateX(-50%);width:28px;height:28px;border-radius:50%;
  background:var(--bg);border:2px dashed #CFC8BC;color:#B7AFA3;display:grid;place-items:center;font-size:15px;font-weight:700;z-index:2;transition:all .3s}
.section.alt .t-apply::before{background:var(--bg-2)}
.mgrid.complete .t-apply::before{border:2px solid var(--deep);background:var(--deep);color:#fff}
.slot{grid-column:2;grid-row:1;border-radius:var(--radius);border:2px dashed #D9D2C6;display:flex;flex-direction:column;justify-content:center;
  align-items:center;text-align:center;padding:14px;color:var(--ink-2);font-size:15px;transition:all .35s}
.slot .s-word{font-size:clamp(22px,2.8vw,28px);font-weight:700;display:block;color:#B7AFA3}
.slot.done{border:none;background:linear-gradient(135deg,var(--deep),var(--understand));color:#fff;box-shadow:0 14px 30px rgba(31,42,158,.3)}
.slot.done .s-word{color:#fff}
.slot .q{display:block;font-size:14px;font-weight:500;font-style:italic;line-height:1.35;margin-top:4px}
.slot a{margin-top:10px;display:inline-block;background:#fff;color:var(--ink);text-decoration:none;font-weight:600;font-size:14px;padding:8px 14px;border-radius:999px}
.mpanel{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:30px}
.mpanel[hidden]{display:none}
.tag{display:inline-block;font-weight:600;font-size:14px;padding:5px 12px;border-radius:999px;background:var(--soft);color:var(--strong)}
.mpanel h3{font-size:clamp(26px,3.2vw,34px);margin:12px 0 20px}
.p-learn{--soft:var(--soft-1);--strong:var(--learn)}
.p-understand{--soft:var(--soft-2);--strong:#3B4FD6}
.p-apply{--soft:var(--soft-3);--strong:#4A5BD8}
.aud{list-style:none;padding:0;margin:0;display:grid;gap:12px}
.aud li{border-left:4px solid var(--strong);background:#FBFAF8;border-radius:0 12px 12px 0;padding:12px 16px}
.aud b{display:block;font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--strong)}
.aud span{font-size:19px;font-weight:500;line-height:1.35}
.aud .todo{color:#A09A90;font-style:italic}
.mempty strong{display:block;font-size:24px;margin-bottom:4px}
.fade{animation:fade .35s ease}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* Βήματα */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px;counter-reset:s;list-style:none;padding:0}
.steps li{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;position:relative;box-shadow:var(--shadow)}
.steps li::before{counter-increment:s;content:counter(s);display:grid;place-items:center;width:40px;height:40px;border-radius:12px;
  background:var(--soft-1);color:var(--deep);font-weight:700;margin-bottom:14px}
.steps h3{font-size:20px;margin-bottom:6px}
.steps p{color:var(--ink-2);margin:0}

/* Κοινό */
.audiences{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px}
.aud-card{border-radius:var(--radius-lg);padding:26px;background:var(--card);border:1px solid var(--line)}
.aud-card h3{font-size:20px}
.aud-card p{color:var(--ink-2);margin:0}

/* Σχετικά */
.about{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:center}
.photo{aspect-ratio:4/5;border-radius:var(--radius-lg);background:linear-gradient(160deg,var(--soft-1),var(--soft-3));border:2px dashed #CFC8BC;
  display:grid;place-items:center;color:var(--ink-3);text-align:center;padding:20px;font-size:15px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:24px 0}
.stat{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px}
.stat b{display:block;font-size:30px;line-height:1.1;color:var(--deep)}
.stat span{font-size:14px;color:var(--ink-2)}
.timeline{list-style:none;padding:0;margin:20px 0 0;border-left:2px solid var(--line)}
.timeline li{position:relative;padding:0 0 18px 22px}
.timeline li::before{content:"";position:absolute;left:-7px;top:7px;width:12px;height:12px;border-radius:4px;background:var(--understand)}
.timeline b{display:block}
.timeline span{color:var(--ink-2);font-size:16px}

/* FAQ */
.faq{max-width:780px;margin:32px auto 0}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:0 22px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:600;padding:18px 0;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;line-height:1;color:var(--deep)}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--ink-2);padding-bottom:18px;margin:0}

/* CTA band */
.cta-band{background:linear-gradient(135deg,var(--deep),var(--understand));color:#fff;border-radius:28px;padding:56px 40px;text-align:center}
.cta-band h2{color:#fff}
.cta-band p{color:rgba(255,255,255,.9);max-width:560px;margin:0 auto 24px}
.cta-band .btn-primary{background:#fff;color:var(--deep)}
.cta-band .btn-primary:hover{background:#F0F2FF;color:var(--deep)}

/* Σελίδες υπηρεσιών */
.page-hero{padding:56px 0 40px}
.page-hero .chip{width:54px;height:54px;border-radius:16px;margin-bottom:20px}
.topics{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:32px}
.topic{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow)}
.topic h3{font-size:21px;display:flex;align-items:center;gap:10px}
.topic h3::before{content:"";width:12px;height:12px;border-radius:4px;background:var(--accent,var(--understand));flex:none}
.topic p{color:var(--ink-2);margin:0}
.pills{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;padding:0;list-style:none}
.pills li{background:var(--bg-2);border-radius:999px;padding:5px 12px;font-size:14px;color:var(--ink-2)}
.note{background:var(--soft-2);border-radius:16px;padding:18px 20px;color:var(--ink-2);margin-top:28px}

/* Επικοινωνία */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start;margin-top:32px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:30px;box-shadow:var(--shadow)}
.card.feature{border:2px solid var(--understand)}
.badge{display:inline-block;background:var(--soft-1);color:var(--deep);font-weight:600;font-size:13px;border-radius:999px;padding:4px 12px;margin-bottom:12px}
.check{list-style:none;padding:0;margin:16px 0 22px}
.check li{padding:5px 0 5px 28px;position:relative;color:var(--ink-2)}
.check li::before{content:"✓";position:absolute;left:0;color:var(--deep);font-weight:700}
form .field{margin-bottom:16px}
label{display:block;font-weight:600;font-size:15px;margin-bottom:6px}
.hint{font-weight:400;color:var(--ink-3);font-size:14px}
input,select,textarea{width:100%;font:inherit;font-size:16px;color:var(--ink);background:#fff;border:1.5px solid #DCD5CA;border-radius:12px;padding:12px 14px}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--understand);box-shadow:0 0 0 4px rgba(90,111,240,.18)}
textarea{min-height:110px;resize:vertical}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.consent{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:15px;color:var(--ink-2)}
.consent input{width:20px;height:20px;margin-top:3px;flex:none}
.hp{position:absolute;left:-9999px}
.form-msg{margin-top:14px;padding:14px 16px;border-radius:12px;font-weight:500}
.form-msg.ok{background:#E7F6EC;color:#1C6B3A}
.form-msg.err{background:#FDECEC;color:#A12828}
[hidden]{display:none!important}

/* Νομικά */
.legal{max-width:780px}
.legal h2{font-size:24px;margin-top:36px}
.legal li{margin-bottom:6px}
.fill{background:#FFF3C4;padding:0 4px;border-radius:4px}

/* Footer */
.site-footer{background:var(--ink);color:#C9CCE0;padding:56px 0 30px;margin-top:40px}
.site-footer a{color:#fff;text-decoration:none}
.site-footer a:hover{text-decoration:underline}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px}
.foot-grid h4{color:#fff;margin:0 0 12px;font-size:16px}
.foot-grid ul{list-style:none;padding:0;margin:0}
.foot-grid li{padding:4px 0}
.foot-logo{background:#fff;border-radius:14px;padding:10px 14px;display:inline-block;margin-bottom:14px}
.foot-logo img{height:34px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:20px;font-size:14px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* Σταθερό κουμπί στο κινητό */
.mobile-cta{display:none}

/* Responsive */
@media (max-width:900px){
  .hero-grid,.about,.method,.contact-grid{grid-template-columns:1fr}
  .hero-art{order:-1}
  .hero-squares{max-width:220px;margin:0}
  .pillars,.steps,.audiences{grid-template-columns:1fr}
  .topics{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .mgrid{max-width:400px;margin:0 auto;width:100%}
  .photo{max-width:360px}
}
@media (max-width:820px){
  .menu-btn{display:block}
  .nav-links{display:none;position:absolute;top:72px;left:0;right:0;background:var(--bg);flex-direction:column;align-items:stretch;
    gap:0;padding:8px 20px 20px;border-bottom:1px solid var(--line);box-shadow:0 12px 24px rgba(31,35,64,.08)}
  .nav-links.open{display:flex}
  .nav-links a{display:block;padding:14px 0;border-bottom:1px solid var(--line)}
  .nav-links .nav-cta{margin-top:14px;text-align:center;justify-content:center;border:0}
  .section{padding:60px 0}
  .hero{padding:28px 0 48px}
  .row2{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr 1fr}
  .stat b{font-size:24px}
  .cta-band{padding:40px 22px}
  .mobile-cta{display:block;position:fixed;left:12px;right:12px;bottom:12px;z-index:60}
  .mobile-cta .btn{width:100%;justify-content:center}
  body.has-mobile-cta{padding-bottom:80px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}
.nav-links a.btn-primary,.nav-links a.btn-primary:hover{color:#fff;text-decoration:none}

/* Φωτογραφία */
.photo{position:relative;overflow:hidden}
.photo-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 25%;z-index:1}

/* Τετράγωνα hero: πατιούνται και δείχνουν κείμενο */
.hero-squares .hs{all:unset;box-sizing:border-box;cursor:pointer;border-radius:var(--radius-lg);position:relative;overflow:hidden;
  display:flex;flex-direction:column;justify-content:flex-end;padding:20px;color:#fff;transition:transform .25s,box-shadow .25s,background .3s}
.hero-squares .hs:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(31,35,64,.18)}
.hero-squares .hs:focus-visible{outline:3px solid var(--ink);outline-offset:3px}
.hero-squares .s1{background:var(--learn)}
.hero-squares .s3{background:var(--understand)}
.hero-squares .s4{background:var(--apply);color:var(--ink)}
.hero-squares .s2{border:2px dashed #D3CBBE;color:var(--ink-3);justify-content:center;align-items:center;text-align:center}
.hero-squares .s2[aria-pressed="true"]{border-color:transparent;background:linear-gradient(135deg,var(--deep),var(--understand));color:#fff}
.hs-word{font-weight:700;font-size:clamp(18px,2vw,22px);line-height:1.1;transition:transform .3s}
.hs-text{font-size:clamp(14px,1.5vw,17px);font-weight:500;line-height:1.35;max-height:0;opacity:0;overflow:hidden;transition:max-height .35s,opacity .3s,margin .3s}
.hs[aria-pressed="true"] .hs-text{max-height:140px;opacity:1;margin-top:8px}
.hs-hint{margin:12px 0 0;font-size:14px;color:var(--ink-3);text-align:right;max-width:400px;margin-left:auto}
@media (max-width:900px){
  .hero-squares{max-width:360px}
  .hs-hint{text-align:left;margin-left:0}
  .hero-squares .hs{padding:14px}
}

/* Καθηγητές */
.teach-band{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px 32px}
.teach-band h2{font-size:clamp(22px,3vw,28px);margin-bottom:4px}
.teach-band p{color:var(--ink-2);margin:0}
fieldset.field{border:0;padding:0;margin:0 0 16px}
fieldset legend{font-weight:600;font-size:15px;margin-bottom:8px;padding:0}
.opts{display:flex;flex-wrap:wrap;gap:8px}
.opt{display:inline-flex;align-items:center;gap:8px;font-weight:500;font-size:15px;background:var(--bg-2);border:1.5px solid transparent;
  border-radius:999px;padding:7px 14px;cursor:pointer;margin:0}
.opt input{width:16px;height:16px;margin:0;accent-color:var(--deep)}
.opt:has(input:checked){background:var(--soft-1);border-color:var(--understand);color:var(--deep)}
.opt:has(input:focus-visible){outline:3px solid var(--deep);outline-offset:2px}

/* Προφίλ */
.social{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.social a{display:inline-flex;align-items:center;gap:8px;text-decoration:none;color:var(--ink);font-weight:500;font-size:15px;
  background:var(--card);border:1px solid var(--line);border-radius:999px;padding:8px 14px;transition:border-color .2s,color .2s}
.social a:hover{border-color:var(--understand);color:var(--deep)}
.social svg{width:18px;height:18px}

/* Άρθρα */
.articles{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:28px}
.article{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  text-decoration:none;color:var(--ink);box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.article:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(31,35,64,.12);color:var(--ink)}
.article img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--bg-2)}
.article-body{padding:20px;display:flex;flex-direction:column;gap:6px}
.article-body h3{font-size:19px;margin:0;line-height:1.3}
.article-date{font-size:13px;color:var(--ink-3)}
.article-tags{font-size:13px;color:var(--understand);font-weight:500}
@media (max-width:900px){.articles{grid-template-columns:1fr}}

/* Τεστ καθηγητή */
.timer{position:sticky;top:80px;z-index:5;display:inline-block;background:var(--deep);color:#fff;font-weight:600;font-size:15px;padding:8px 14px;border-radius:999px;box-shadow:var(--shadow)}
.part{font-size:22px;margin:36px 0 12px;color:var(--deep)}
.case{margin-bottom:18px;padding:24px}
.case h4{margin:0 0 8px;font-size:15px;text-transform:uppercase;letter-spacing:.06em;color:var(--understand)}
.case-q{white-space:pre-wrap;font-size:17px}
.likert{border:0;padding:16px 0;margin:0;border-bottom:1px solid var(--line)}
.likert legend{font-weight:500;padding:0;margin-bottom:10px}
.likert-row{display:flex;gap:10px;flex-wrap:wrap}
.likert-row label{display:inline-flex;align-items:center;gap:6px;background:var(--card);border:1.5px solid var(--line);border-radius:12px;padding:8px 14px;cursor:pointer;font-weight:600;margin:0}
.likert-row label:has(input:checked){border-color:var(--understand);background:var(--soft-1);color:var(--deep)}
.likert-row input{accent-color:var(--deep);margin:0}
.steps.steps-4{grid-template-columns:repeat(4,1fr)}
@media (max-width:1000px){.steps.steps-4{grid-template-columns:1fr 1fr}}
@media (max-width:600px){.steps.steps-4{grid-template-columns:1fr}}