:root{--navy:#0b2345;--navy2:#143b6b;--ink:#142033;--muted:#5e6b7d;--line:#dce3ec;--paper:#fbfaf7;--white:#fff;--accent:#e8752b;--accent-soft:#fff1e7;--green:#2f7d57;--shadow:0 18px 50px rgba(11,35,69,.09);--radius:22px;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.55}a{color:inherit}.container{width:min(calc(100% - 36px),var(--max));margin-inline:auto}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:16px;top:16px;z-index:1000;background:#fff;padding:10px 14px;border-radius:8px}.site-header{position:sticky;top:0;z-index:100;background:rgba(251,250,247,.93);backdrop-filter:blur(18px);border-bottom:1px solid rgba(11,35,69,.08)}.header-inner{min-height:74px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{text-decoration:none;font-weight:850;letter-spacing:-.02em;color:var(--navy);font-size:1.05rem}.brand span{display:block;font-size:.75rem;font-weight:650;color:var(--muted);letter-spacing:0}.nav{display:flex;align-items:center;gap:4px}.nav a{padding:10px 12px;border-radius:10px;text-decoration:none;font-size:.92rem;font-weight:650;color:#334056}.nav a:hover,.nav a[aria-current="page"]{background:#edf2f7;color:var(--navy)}.language-switch{display:flex;align-items:center;gap:6px;margin-left:4px}.language-switch a{font-size:.78rem;padding:7px 8px}.menu-button{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px 11px;font-weight:800}.hero{padding:76px 0 48px;background:radial-gradient(circle at 82% 24%,rgba(232,117,43,.13),transparent 27%),radial-gradient(circle at 72% 82%,rgba(47,125,87,.08),transparent 22%)}.hero-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:54px;align-items:center}.eyebrow{display:inline-flex;gap:8px;align-items:center;color:var(--navy2);font-weight:800;font-size:.82rem;text-transform:uppercase;letter-spacing:.08em}.eyebrow:before{content:"";width:28px;height:3px;border-radius:99px;background:var(--accent)}h1,h2,h3{line-height:1.1;letter-spacing:-.035em;color:var(--navy);margin-top:0}h1{font-size:clamp(2.7rem,6vw,5.4rem);margin-bottom:22px}h2{font-size:clamp(2rem,4vw,3.2rem);margin-bottom:20px}h3{font-size:1.32rem;margin-bottom:12px}.lead{font-size:clamp(1.08rem,2vw,1.34rem);color:#3e4b5f;max-width:780px;margin:0 0 28px}.actions{display:flex;flex-wrap:wrap;gap:12px}.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 18px;border-radius:12px;text-decoration:none;font-weight:800;border:1px solid transparent}.button.primary{background:var(--navy);color:white}.button.primary:hover{background:var(--navy2)}.button.secondary{background:white;color:var(--navy);border-color:#bcc9d8}.button.ghost{background:transparent;color:var(--navy);border-color:var(--line)}.hero-card{background:var(--white);border:1px solid rgba(11,35,69,.1);border-radius:32px;padding:30px;box-shadow:var(--shadow)}.hero-mark{aspect-ratio:1.15;border-radius:24px;background:linear-gradient(145deg,var(--navy),#173f72);color:white;display:grid;place-items:center;position:relative;overflow:hidden}.hero-mark:before,.hero-mark:after{content:"";position:absolute;border-radius:50%;border:1px solid rgba(255,255,255,.18)}.hero-mark:before{width:300px;height:300px;right:-90px;top:-120px}.hero-mark:after{width:220px;height:220px;left:-95px;bottom:-120px}.hero-initials{font-size:clamp(4.6rem,10vw,8rem);font-weight:900;letter-spacing:-.08em}.hero-caption{margin-top:18px;font-size:.94rem;color:var(--muted)}.hero-photo{margin:0;background:#fff;border:1px solid rgba(11,35,69,.1);border-radius:32px;padding:12px;box-shadow:var(--shadow);overflow:hidden;max-width:455px;justify-self:end;transform:rotate(.35deg)}.hero-photo picture{display:block}.hero-photo img{display:block;width:100%;height:auto;aspect-ratio:auto;object-fit:contain;object-position:center;border-radius:23px;filter:contrast(1.015);background:#20252b}.portrait-strip{display:grid;grid-template-columns:220px 1fr;gap:30px;align-items:center;margin:28px 0 42px;padding:22px;background:#fff;border:1px solid var(--line);border-radius:24px}.portrait-strip img{display:block;width:100%;height:auto;aspect-ratio:auto;object-fit:contain;border-radius:17px;background:#20252b}.portrait-strip p{margin:0;color:#334056}.stats{padding:18px 0 66px}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.stat{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:0 8px 26px rgba(11,35,69,.04)}.stat strong{display:block;font-size:2rem;color:var(--navy);letter-spacing:-.04em}.stat span{font-size:.92rem;color:var(--muted)}.section{padding:82px 0}.section.alt{background:white;border-block:1px solid #e8edf3}.section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:34px}.section-head p{max-width:660px;color:var(--muted);margin:0}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px;transition:transform .18s ease,box-shadow .18s ease}.card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.card .label{display:inline-flex;padding:6px 9px;border-radius:999px;background:var(--accent-soft);color:#9a4614;font-size:.75rem;font-weight:800;margin-bottom:16px}.card p{color:var(--muted);margin-bottom:20px}.card a{color:var(--navy);font-weight:800;text-decoration:none}.card a:hover{text-decoration:underline}.path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.path{min-height:245px;border-radius:26px;padding:30px;color:white;display:flex;flex-direction:column;justify-content:space-between}.path h3{color:white;font-size:1.65rem}.path p{color:rgba(255,255,255,.82)}.path.learn{background:linear-gradient(145deg,#164c71,#0b2345)}.path.invite{background:linear-gradient(145deg,#ba5821,#e8752b)}.path.explore{background:linear-gradient(145deg,#27674a,#2f7d57)}.path a{color:white;font-weight:800}.quote{border-left:5px solid var(--accent);padding:8px 0 8px 24px;margin:0;font-size:clamp(1.35rem,3vw,2.15rem);color:var(--navy);font-weight:760;letter-spacing:-.025em}.quote cite{display:block;font-size:.9rem;color:var(--muted);font-style:normal;margin-top:15px;font-weight:600}.page-hero{padding:64px 0 38px}.page-hero p{max-width:760px;color:var(--muted);font-size:1.15rem}.prose{max-width:820px}.prose h2{margin-top:52px}.prose p,.prose li{color:#334056}.timeline{display:grid;gap:0;border-left:2px solid #cad4df;margin-left:9px}.timeline-item{position:relative;padding:0 0 30px 28px}.timeline-item:before{content:"";position:absolute;left:-8px;top:4px;width:14px;height:14px;border-radius:50%;background:var(--accent);border:3px solid var(--paper)}.timeline-item strong{display:block;color:var(--navy)}.topic-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.topic{border:1px solid var(--line);border-radius:18px;padding:22px;background:white}.topic p{color:var(--muted);margin-bottom:0}.course-list{display:grid;gap:18px}.course{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;border:1px solid var(--line);border-radius:20px;padding:24px;background:#fff}.course p{color:var(--muted);margin:8px 0 0}.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:28px}.contact-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:28px}.contact-list{display:grid;gap:12px}.contact-list a{text-decoration:none;font-weight:750;color:var(--navy)}form{display:grid;gap:14px}label{font-weight:750;color:var(--navy)}input,textarea,select{width:100%;padding:13px 14px;border:1px solid #bdc8d6;border-radius:10px;background:#fff;font:inherit}textarea{min-height:150px;resize:vertical}.notice{font-size:.88rem;color:var(--muted)}.site-footer{background:var(--navy);color:white;padding:46px 0 28px;margin-top:64px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:30px}.site-footer h3{color:white;font-size:1rem}.site-footer a{color:#dce8f4;text-decoration:none;display:block;margin:8px 0}.site-footer p{color:#c4d2e1}.footer-bottom{border-top:1px solid rgba(255,255,255,.13);margin-top:32px;padding-top:20px;color:#b9c8d8;font-size:.85rem}.coming-soon{min-height:66vh;display:grid;place-items:center;text-align:center;padding:40px}.coming-soon .box{max-width:650px;background:#fff;border:1px solid var(--line);border-radius:28px;padding:42px;box-shadow:var(--shadow)}.rtl{direction:rtl;font-family:Arial,sans-serif}.small{font-size:.87rem;color:var(--muted)}
@media(max-width:940px){.portrait-strip{grid-template-columns:180px 1fr}.menu-button{display:inline-flex}.nav{display:none;position:absolute;left:18px;right:18px;top:70px;flex-direction:column;align-items:stretch;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--shadow)}.nav.open{display:flex}.language-switch{margin:0;border-top:1px solid var(--line);padding-top:8px}.hero-grid,.contact-grid{grid-template-columns:1fr}.hero-card{max-width:560px}.cards,.path-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:650px){.portrait-strip{grid-template-columns:1fr}.portrait-strip img{max-width:320px;margin-inline:auto}.container{width:min(calc(100% - 24px),var(--max))}.hero{padding-top:48px}h1{font-size:2.7rem}.stats-grid,.cards,.path-grid,.topic-list{grid-template-columns:1fr}.section{padding:62px 0}.section-head{display:block}.section-head p{margin-top:12px}.course{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}}

.book-grid{display:grid;grid-template-columns:minmax(260px,390px) 1fr;gap:52px;align-items:start}.book-cover{background:#fff;border:1px solid var(--line);border-radius:24px;padding:16px;box-shadow:var(--shadow);position:sticky;top:100px}.book-cover img{display:block;width:100%;height:auto;border-radius:14px}.book-meta{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:24px 0}.meta-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px}.meta-item strong{display:block;color:var(--navy);font-size:.8rem;text-transform:uppercase;letter-spacing:.05em}.review-card{margin:28px 0;padding:24px 26px;border-radius:20px;background:var(--accent-soft);border:1px solid #f3caaa}.review-card blockquote{margin:0;font-size:1.25rem;color:var(--navy);font-weight:750}.review-card cite{display:block;margin-top:12px;color:var(--muted);font-style:normal;font-size:.9rem}.expertise-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.expertise-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px}.expertise-card h3{font-size:1.15rem}.expertise-card p{color:var(--muted);margin-bottom:0}.proof-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:28px}.proof-item{border-left:3px solid var(--accent);padding:8px 12px}.proof-item strong{display:block;color:var(--navy)}.proof-item span{font-size:.88rem;color:var(--muted)}.mini-essay{background:#fff;border:1px solid var(--line);border-radius:22px;padding:26px}.mini-essay p{color:#334056}.mini-essay .button{margin-top:8px}.rtl .quote{border-left:0;border-right:5px solid var(--accent);padding:8px 24px 8px 0}.rtl .timeline{border-left:0;border-right:2px solid #cad4df;margin-left:0;margin-right:9px}.rtl .timeline-item{padding:0 28px 30px 0}.rtl .timeline-item:before{left:auto;right:-8px}.rtl .proof-item{border-left:0;border-right:3px solid var(--accent)}
@media(max-width:940px){.book-grid{grid-template-columns:1fr}.book-cover{position:static;max-width:420px}.expertise-grid,.proof-strip{grid-template-columns:1fr 1fr}}
@media(max-width:650px){.book-meta,.expertise-grid,.proof-strip{grid-template-columns:1fr}}

.current-section{
  background:
    radial-gradient(circle at 92% 10%,rgba(232,117,43,.08),transparent 24%),
    var(--paper);
}
.current-card{position:relative;overflow:hidden}
.current-card::after{
  content:"";position:absolute;right:-35px;bottom:-35px;width:90px;height:90px;
  border-radius:50%;background:rgba(232,117,43,.07);pointer-events:none
}

.testimonials-section{
  background:
    radial-gradient(circle at 8% 14%,rgba(232,117,43,.08),transparent 26%),
    var(--paper);
}
.testimonial-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;
}
.testimonial-card{
  display:grid;
  grid-template-columns:190px 1fr;
  gap:22px;
  align-items:start;
  background:#fff;
  border:1px solid var(--line);
  border-radius:24px;
  padding:20px;
  box-shadow:0 12px 34px rgba(11,35,69,.06);
}
.testimonial-image{
  display:block;
  overflow:hidden;
  border-radius:16px;
  border:1px solid var(--line);
  background:#f4f1eb;
}
.testimonial-image img{
  display:block;
  width:100%;
  height:250px;
  object-fit:cover;
  object-position:top center;
}
.testimonial-card blockquote{
  margin:4px 0 14px;
  color:var(--navy);
  font-size:1.08rem;
  line-height:1.55;
  font-weight:720;
}
.testimonial-card cite{
  display:block;
  color:var(--muted);
  font-size:.88rem;
  font-style:normal;
  font-weight:650;
}
.rtl .testimonial-card{direction:rtl}
@media(max-width:940px){
  .testimonial-grid{grid-template-columns:1fr}
}
@media(max-width:650px){
  .testimonial-card{grid-template-columns:1fr}
  .testimonial-image{max-width:320px}
  .testimonial-image img{height:auto;object-fit:contain}
}

.featured-project{border-top:4px solid var(--accent)}
.project-hero{background:linear-gradient(135deg,rgba(232,117,43,.10),rgba(11,35,69,.04))}
.ecosystem{
  display:grid;grid-template-columns:minmax(260px,.9fr) minmax(0,1.4fr);
  gap:24px;align-items:stretch
}
.ecosystem-core{
  padding:28px;border-radius:24px;background:var(--navy);color:#fff;
  box-shadow:0 18px 42px rgba(11,35,69,.16)
}
.ecosystem-core span,.project-badge span{
  display:block;font-size:.75rem;font-weight:800;text-transform:uppercase;
  letter-spacing:.08em;opacity:.72;margin-bottom:8px
}
.ecosystem-core strong{display:block;font-size:1.8rem;margin-bottom:10px}
.ecosystem-core p{margin:0;color:rgba(255,255,255,.78)}
.ecosystem-branches{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.ecosystem-branches div{
  display:flex;flex-direction:column;justify-content:center;min-height:150px;
  padding:22px;border:1px solid var(--line);border-radius:20px;background:#fff;
  box-shadow:0 10px 28px rgba(11,35,69,.05)
}
.ecosystem-branches strong{font-size:1.08rem;margin-bottom:8px}
.ecosystem-branches span{color:var(--muted);font-size:.9rem}
.project-feature{
  display:grid;grid-template-columns:minmax(0,1.5fr) minmax(260px,.65fr);
  gap:28px;padding:30px;border:1px solid var(--line);border-radius:26px;background:#fff;
  box-shadow:0 16px 40px rgba(11,35,69,.07)
}
.project-feature h3{font-size:clamp(1.55rem,3vw,2.35rem);margin-top:0}
.project-badge{
  align-self:stretch;padding:24px;border-radius:20px;background:var(--accent-soft)
}
.project-badge strong{display:block;font-size:1.25rem;margin-bottom:12px}
.project-badge p{margin:0;color:var(--muted)}
.clean-list{padding-left:1.2rem;margin:18px 0}
.clean-list li{margin:.45rem 0}
.rtl .clean-list{padding-left:0;padding-right:1.2rem}
@media(max-width:900px){
  .ecosystem,.project-feature{grid-template-columns:1fr}
  .ecosystem-branches{grid-template-columns:1fr}
}

.profile-links{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
  margin-top:18px;
}
.profile-link-card{
  display:flex;
  flex-direction:column;
  gap:5px;
  padding:18px 20px;
  border:1px solid var(--line);
  border-radius:18px;
  background:#fff;
  box-shadow:0 10px 28px rgba(11,35,69,.05);
  text-decoration:none;
}
.profile-link-card strong{color:var(--navy);font-size:1.05rem}
.profile-link-card span{color:var(--muted);font-size:.9rem;line-height:1.45}
.profile-link-card:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(11,35,69,.09)}
@media(max-width:650px){.profile-links{grid-template-columns:1fr}}

.song-project-card{border-top-color:#8d4aa8}
.song-project-section{
  background:
    radial-gradient(circle at 88% 12%,rgba(141,74,168,.10),transparent 28%),
    var(--paper)
}
.song-feature{border-top:4px solid #8d4aa8}
.song-badge{background:linear-gradient(145deg,#f7effb,#fff4ea)}
.song-page-hero{
  background:
    radial-gradient(circle at 84% 20%,rgba(141,74,168,.15),transparent 28%),
    radial-gradient(circle at 20% 80%,rgba(232,117,43,.11),transparent 26%)
}
.project-back{
  display:inline-flex;
  margin-bottom:24px;
  color:var(--muted);
  font-weight:750;
  text-decoration:none
}
.project-back:hover{color:var(--navy)}
.song-intro-grid{
  display:grid;
  grid-template-columns:minmax(0,.85fr) minmax(420px,1.15fr);
  gap:38px;
  align-items:center
}
.compact-head{margin-bottom:14px}
.project-note{
  margin-top:24px;
  padding:18px 20px;
  background:var(--accent-soft);
  border:1px solid #f3caaa;
  border-radius:18px;
  color:#4a3a30;
  font-weight:650
}
.playlist-embed{
  position:relative;
  aspect-ratio:16/9;
  border-radius:24px;
  overflow:hidden;
  background:#08111f;
  box-shadow:var(--shadow);
  border:1px solid rgba(11,35,69,.12)
}
.playlist-embed iframe{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  border:0
}
.topic-chips{display:flex;flex-wrap:wrap;gap:12px}
.topic-chips span{
  display:inline-flex;
  padding:11px 15px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--line);
  color:var(--navy);
  font-weight:780;
  box-shadow:0 7px 20px rgba(11,35,69,.04)
}
.song-use-grid{grid-template-columns:repeat(4,1fr)}
.song-cta-section{padding-top:26px}
.song-cta{
  display:grid;
  grid-template-columns:minmax(0,1.45fr) auto;
  gap:28px;
  align-items:center;
  padding:34px;
  border-radius:28px;
  background:linear-gradient(135deg,var(--navy),#3f2458);
  color:#fff;
  box-shadow:var(--shadow)
}
.song-cta h2{color:#fff}
.song-cta p{color:rgba(255,255,255,.78);margin-bottom:0}
.song-cta .eyebrow{color:#fff}
.song-cta .button.primary{background:#fff;color:var(--navy)}
.song-cta .button.secondary{background:transparent;color:#fff;border-color:rgba(255,255,255,.42)}
@media(max-width:940px){
  .song-intro-grid{grid-template-columns:1fr}
  .song-use-grid{grid-template-columns:1fr 1fr}
  .song-cta{grid-template-columns:1fr}
}
@media(max-width:650px){
  .song-use-grid{grid-template-columns:1fr}
  .song-intro-grid{gap:24px}
  .song-cta{padding:26px}
}

.hero .lead{max-width:760px}
.hero .eyebrow{letter-spacing:.09em}
@media(min-width:900px){
  .hero h1{max-width:780px}
}

.actions{flex-wrap:wrap}
.playlist-language-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
  margin-top:24px;
}
.playlist-language-card{
  display:grid;
  gap:20px;
  padding:24px;
  border:1px solid var(--line);
  border-radius:24px;
  background:#fff;
  box-shadow:var(--shadow);
}
.playlist-language-card h3{margin-top:10px}
.playlist-language-card .playlist-embed{border-radius:18px}
@media(max-width:900px){
  .playlist-language-grid{grid-template-columns:1fr}
}

.article-hero{
  padding:78px 0 54px;
  background:
    radial-gradient(circle at 84% 12%,rgba(232,117,43,.15),transparent 28%),
    linear-gradient(180deg,#faf7f1,#fff);
  border-bottom:1px solid var(--line);
}
.article-narrow{max-width:890px}
.article-hero h1{font-size:clamp(2.5rem,6vw,5.3rem);max-width:850px;margin-bottom:20px}
.article-deck{font-size:clamp(1.12rem,2vw,1.38rem);color:var(--muted);max-width:820px}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 20px;margin-top:24px;color:var(--muted);font-size:.88rem;font-weight:700}
.article-meta span+span:before{content:"·";margin-right:20px;color:var(--accent)}
.article-section{padding-top:46px}
.article-layout{display:grid;grid-template-columns:190px minmax(0,760px);gap:54px;justify-content:center;align-items:start}
.article-toc{position:sticky;top:92px;display:grid;gap:9px;padding:18px;border:1px solid var(--line);border-radius:18px;background:#fff}
.article-toc strong{color:var(--navy);margin-bottom:4px}
.article-toc a{text-decoration:none;color:var(--muted);font-size:.88rem}
.article-toc a:hover{color:var(--accent)}
.article-body{font-size:1.07rem;line-height:1.78}
.article-body h2{font-size:clamp(1.55rem,3vw,2.15rem);margin:52px 0 16px;scroll-margin-top:100px}
.article-body p{margin:0 0 20px}
.article-body ul{padding-left:1.3rem;margin:0 0 24px}
.article-body li{margin:.45rem 0}
.article-lead{font-size:1.27rem;color:var(--navy);font-weight:680}
.article-callout{margin:30px 0;padding:22px 24px;border-left:5px solid var(--accent);border-radius:0 18px 18px 0;background:var(--accent-soft)}
.article-callout strong{display:block;color:var(--navy);margin-bottom:6px}
.article-callout p{margin:0}
.article-callout.soft{background:#eef4fb;border-left-color:var(--navy-2)}
.comparison{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:28px 0}
.comparison-card{padding:22px;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:0 10px 30px rgba(11,35,69,.05)}
.comparison-card span{display:block;color:var(--muted);font-size:.8rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em}
.comparison-card strong{display:block;font-size:2.25rem;color:var(--navy);margin:8px 0}
.comparison-card p{margin:0;font-size:.92rem;color:var(--muted)}
.warning-card{background:#fff4f1;border-color:#f1cdc3}
.formula-box{margin:28px 0;padding:24px;text-align:center;border:1px solid var(--line);border-radius:20px;background:var(--navy);color:#fff}
.formula-box span,.formula-box small{display:block;color:rgba(255,255,255,.72)}
.formula-box strong{display:block;font-size:1.7rem;margin:8px 0}
.distribution-demo{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:28px 0}
.distribution-demo>div{padding:20px;border:1px solid var(--line);border-radius:20px;background:#fff}
.distribution-demo b{display:block;margin-bottom:14px;color:var(--navy)}
.distribution-demo span{display:block;margin-top:10px;color:var(--muted);font-size:.85rem}
.dot-row{height:130px;display:flex;gap:8px;align-items:flex-end;padding:10px;border-bottom:2px solid var(--navy)}
.dot-row i{display:block;flex:1;min-height:10px;border-radius:8px 8px 2px 2px;background:linear-gradient(180deg,var(--accent),#f3a46d)}
.chart-pair{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:28px 0}
.fake-chart{padding:20px;border:1px solid var(--line);border-radius:20px;background:#fff}
.fake-chart b{display:block;color:var(--navy);margin-bottom:12px}
.fake-chart small{display:block;margin-top:10px;color:var(--muted)}
.bars{height:180px;display:flex;align-items:flex-end;gap:12px;padding:10px 8px 0;border-left:2px solid var(--navy);border-bottom:2px solid var(--navy)}
.bars i{position:relative;display:block;flex:1;background:linear-gradient(180deg,var(--accent),#efa270);border-radius:7px 7px 0 0;min-height:18px}
.bars span{position:absolute;left:50%;transform:translateX(-50%);top:-24px;font-style:normal;font-size:.75rem;font-weight:800;color:var(--navy)}
.article-checklist{display:grid;gap:10px;margin:26px 0}
.article-checklist div{display:grid;grid-template-columns:38px 1fr;gap:12px;align-items:center;padding:13px 15px;border:1px solid var(--line);border-radius:14px;background:#fff}
.article-checklist strong{width:32px;height:32px;display:grid;place-items:center;border-radius:50%;background:var(--navy);color:#fff}
.article-cta{display:grid;grid-template-columns:1fr auto;gap:26px;align-items:center;margin-top:44px;padding:28px;border-radius:24px;background:linear-gradient(135deg,var(--navy),#173a67);color:#fff}
.article-cta h3{color:#fff;font-size:1.55rem;margin:8px 0}
.article-cta p{margin:0;color:rgba(255,255,255,.75);font-size:.94rem}
.article-cta .button.primary{background:#fff;color:var(--navy)}
.article-cta .button.secondary{color:#fff;border-color:rgba(255,255,255,.4)}
.article-feature-card{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(260px,.65fr);gap:28px;align-items:center;padding:30px;border:1px solid var(--line);border-radius:26px;background:#fff;box-shadow:var(--shadow)}
.article-feature-card h2{font-size:clamp(1.8rem,4vw,3rem);margin:8px 0 12px}
.article-feature-visual{min-height:230px;display:flex;flex-direction:column;justify-content:center;padding:26px;border-radius:22px;background:linear-gradient(145deg,var(--navy),#254d7b);color:#fff}
.article-feature-visual strong{font-size:1.35rem;line-height:1.25}
.signal-bars{height:90px;display:flex;align-items:flex-end;gap:8px;margin-bottom:20px}
.signal-bars i{display:block;flex:1;background:var(--accent);border-radius:6px 6px 0 0}
.signal-bars i:nth-child(1){height:22%}.signal-bars i:nth-child(2){height:66%}.signal-bars i:nth-child(3){height:38%}.signal-bars i:nth-child(4){height:86%}.signal-bars i:nth-child(5){height:51%}
.ideas-short-head{margin-top:42px}
.article-current-card{border-top:4px solid var(--navy-2)}
@media(max-width:940px){
  .article-layout{grid-template-columns:1fr}
  .article-toc{position:static;grid-template-columns:repeat(2,1fr)}
  .article-toc strong{grid-column:1/-1}
  .article-feature-card{grid-template-columns:1fr}
  .article-feature-visual{min-height:190px}
  .article-cta{grid-template-columns:1fr}
}
@media(max-width:650px){
  .comparison,.distribution-demo,.chart-pair{grid-template-columns:1fr}
  .article-meta span+span:before{display:none}
  .article-meta{display:grid;gap:5px}
  .article-toc{grid-template-columns:1fr}
  .article-body{font-size:1rem}
  .article-hero{padding-top:54px}
}