:root{
  color-scheme: dark light;
  --bg:#060815;
  --bg2:#0d1126;
  --bg3:#141833;
  --panel:rgba(255,255,255,.075);
  --panel-strong:rgba(255,255,255,.105);
  --line:rgba(255,255,255,.12);
  --text:#f8f9ff;
  --muted:#aeb8d6;
  --soft-text:rgba(248,249,255,.82);
  --cyan:#10adc5;
  --cyan2:#1ad7f3;
  --purple:#7d2ee6;
  --purple2:#a855f7;
  --danger:#ff5470;
  --success:#2ee6a6;
  --warning:#ffd166;
  --shadow:0 24px 80px rgba(0,0,0,.28);
  --shadow-soft:0 12px 34px rgba(0,0,0,.18);
  --radius:28px;
  --radius2:18px;
  --glass:blur(18px);
}
@media (prefers-color-scheme: light){
  :root{
    --bg:#f4f7fc;
    --bg2:#edf2fb;
    --bg3:#ffffff;
    --panel:rgba(255,255,255,.78);
    --panel-strong:rgba(255,255,255,.94);
    --line:rgba(15,23,42,.10);
    --text:#101828;
    --muted:#4b5565;
    --soft-text:rgba(16,24,40,.88);
    --shadow:0 24px 60px rgba(15,23,42,.10);
    --shadow-soft:0 10px 26px rgba(15,23,42,.08);
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  color:var(--text);
  background:
    radial-gradient(circle at 12% 8%, color-mix(in srgb, var(--cyan) 22%, transparent), transparent 30%),
    radial-gradient(circle at 88% 0%, color-mix(in srgb, var(--purple) 28%, transparent), transparent 34%),
    linear-gradient(135deg,var(--bg),var(--bg2) 46%,var(--bg3));
  font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-3;
  pointer-events:none;
  background-image:linear-gradient(color-mix(in srgb, var(--text) 7%, transparent) 1px, transparent 1px),linear-gradient(90deg,color-mix(in srgb, var(--text) 7%, transparent) 1px, transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(circle at 50% 22%, #000, transparent 78%);
}
a{color:inherit}
img{max-width:100%}
::selection{background:color-mix(in srgb, var(--cyan) 32%, transparent)}
.navbar-glass{
  background:color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter:var(--glass);
  border-bottom:1px solid var(--line);
}
.navbar-brand img{width:42px;height:42px;object-fit:contain}
.brand-text{letter-spacing:.12em;font-weight:900;color:var(--text)}
.brand-text span{color:var(--purple2)}
.navbar-toggler{border-color:var(--line)}
.navbar-toggler:focus{box-shadow:none}
.nav-link{font-weight:850;color:color-mix(in srgb, var(--text) 74%, transparent)!important;border-radius:999px;padding:.58rem .85rem!important}
.nav-link:hover,.nav-link.active{color:var(--text)!important;background:color-mix(in srgb, var(--text) 8%, transparent)}
.btn-mabni,.btn-soft{
  border-radius:999px;
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  text-decoration:none;
  font-weight:900;
  transition:transform .18s ease, background .18s ease, box-shadow .18s ease;
}
.btn-mabni{
  border:0;
  color:#fff!important;
  padding:.8rem 1.12rem;
  background:linear-gradient(135deg,var(--cyan),var(--purple));
  box-shadow:0 16px 38px rgba(125,46,230,.22);
}
.btn-mabni:hover,.btn-soft:hover{transform:translateY(-1px)}
.btn-soft{
  border:1px solid var(--line);
  color:var(--text)!important;
  padding:.75rem 1rem;
  background:color-mix(in srgb, var(--panel-strong) 92%, transparent);
}
.page-shell{padding-top:82px}
.section{padding:5.6rem 0}
.section-tight{padding:3.2rem 0}
.hero-swiper{
  min-height:calc(100vh - 82px);
  border-bottom:1px solid var(--line);
  position:relative;
  overflow:hidden;
}
.hero-swiper .swiper-wrapper{align-items:stretch}
.hero-swiper .swiper-slide{
  min-height:calc(100vh - 82px);
  display:flex;
  align-items:center;
  position:relative;
  overflow:hidden;
}
.hero-swiper .swiper-slide::before{
  content:"";
  position:absolute;
  inset:8% 4%;
  z-index:-1;
  border-radius:42px;
  background:linear-gradient(145deg,color-mix(in srgb, var(--panel-strong) 88%, transparent),color-mix(in srgb, var(--panel) 85%, transparent));
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.hero-kicker,.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.65rem;
  text-transform:uppercase;
  letter-spacing:.14em;
  color:var(--muted);
  font-weight:950;
  font-size:.78rem;
}
.hero-kicker::before,.eyebrow::before{
  content:"";
  width:40px;
  height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--purple));
  border-radius:99px;
}
.hero-title{
  font-size:clamp(2.7rem,7vw,6.6rem);
  font-weight:950;
  letter-spacing:-.075em;
  line-height:.92;
  margin:.8rem 0 1.2rem;
}
.hero-title .gradient-text,.gradient-text{
  background:linear-gradient(135deg,var(--cyan2),var(--purple2));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{color:var(--muted);font-size:clamp(1.02rem,1.35vw,1.18rem);line-height:1.75;max-width:760px}
.hero-count{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:.8rem;margin-top:1.6rem;max-width:760px}
.count-card,.glass-card,.path-card,.course-card,.source-card,.dashboard-card,.formula-card,.contact-card,.preview-panel,.preview-card{
  background:linear-gradient(145deg,color-mix(in srgb, var(--panel-strong) 90%, transparent),color-mix(in srgb, var(--panel) 90%, transparent));
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-soft);
  backdrop-filter:var(--glass);
}
.count-card{padding:1rem}
.count-card strong{display:block;font-size:2rem;letter-spacing:-.05em}
.count-card span{color:var(--muted);font-weight:750}
.hero-preview{
  min-height:440px;
  border-radius:36px;
  border:1px solid var(--line);
  background:
    radial-gradient(circle at 18% 16%, color-mix(in srgb, var(--cyan) 15%, transparent), transparent 26%),
    radial-gradient(circle at 82% 14%, color-mix(in srgb, var(--purple) 20%, transparent), transparent 28%),
    color-mix(in srgb, var(--panel) 92%, transparent);
  padding:1rem;
  box-shadow:var(--shadow);
}
.preview-window{
  height:100%;
  border-radius:28px;
  overflow:hidden;
  background:color-mix(in srgb, var(--bg) 76%, var(--panel-strong));
  border:1px solid var(--line);
  display:grid;
  grid-template-rows:auto 1fr;
}
.preview-topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:.9rem 1rem;
  border-bottom:1px solid var(--line);
  gap:.7rem;
}
.preview-dots{display:flex;gap:.38rem}
.preview-dots span{width:10px;height:10px;border-radius:999px;background:color-mix(in srgb, var(--text) 18%, transparent)}
.preview-dots span:nth-child(1){background:#ff6b6b}
.preview-dots span:nth-child(2){background:#ffd166}
.preview-dots span:nth-child(3){background:#2ee6a6}
.preview-pills{display:flex;flex-wrap:wrap;gap:.45rem;justify-content:flex-end}
.preview-pill,.tag,.badge-soft{
  display:inline-flex;
  align-items:center;
  gap:.35rem;
  padding:.4rem .66rem;
  border-radius:999px;
  background:color-mix(in srgb, var(--text) 8%, transparent);
  border:1px solid color-mix(in srgb, var(--text) 9%, transparent);
  color:var(--soft-text);
  font-size:.78rem;
  font-weight:850;
}
.preview-body{display:grid;grid-template-columns:1.1fr .9fr;gap:1rem;padding:1rem;height:100%}
.preview-stack{display:grid;gap:.9rem}
.preview-card{padding:1rem}
.preview-card h3{font-size:1rem;margin:0 0 .45rem;font-weight:900}
.preview-card p,.preview-card span,.section-head p,.muted{color:var(--muted);line-height:1.72}
.preview-list{display:grid;gap:.55rem;margin-top:.7rem}
.preview-list .item{
  display:flex;align-items:flex-start;justify-content:space-between;gap:.6rem;
  padding:.72rem .8rem;border-radius:18px;
  background:color-mix(in srgb, var(--text) 6%, transparent);
  border:1px solid color-mix(in srgb, var(--text) 8%, transparent);
}
.preview-list strong{display:block;font-size:.95rem}
.preview-progress{display:grid;gap:.75rem}
.preview-metric{padding:.8rem .9rem;border-radius:20px;background:color-mix(in srgb, var(--text) 6%, transparent);border:1px solid color-mix(in srgb, var(--text) 8%, transparent)}
.preview-metric strong{display:block;font-size:1.25rem;line-height:1}
.preview-bar{height:.6rem;border-radius:999px;background:color-mix(in srgb, var(--text) 8%, transparent);overflow:hidden;margin-top:.55rem}
.preview-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--cyan),var(--purple))}
.preview-grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.75rem}
.section-head{max-width:860px;margin-bottom:2rem}
.section-head h1,.section-head h2{font-size:clamp(2.15rem,5vw,4.7rem);font-weight:950;letter-spacing:-.07em;line-height:.95}
.card-grid{display:grid;gap:1rem}
.card-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.card-grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}
.glass-card,.path-card,.course-card,.source-card,.dashboard-card,.formula-card,.contact-card{padding:1.2rem}
.icon-box{width:52px;height:52px;border-radius:18px;display:grid;place-items:center;background:linear-gradient(135deg,rgba(16,173,197,.22),rgba(125,46,230,.22));border:1px solid color-mix(in srgb, var(--text) 11%, transparent);margin-bottom:1rem;color:var(--text);font-size:1.35rem}
.path-card h3,.course-card h3,.source-card h3,.dashboard-card h3,.formula-card h3{font-weight:950;letter-spacing:-.03em}
.path-card p,.course-card p,.source-card p,.formula-card p{color:var(--muted);line-height:1.65}
.priority-high{background:rgba(46,230,166,.12);border-color:rgba(46,230,166,.28);color:#2ee6a6}
.priority-medium{background:rgba(255,209,102,.14);border-color:rgba(255,209,102,.28);color:#d39c0c}
.meta-row,.tag-row{display:flex;flex-wrap:wrap;gap:.5rem;margin:.9rem 0}
.tool-strip{display:grid;grid-template-columns:2fr 1fr 1fr;gap:.8rem;margin:1.4rem 0 1.2rem}
.form-control,.form-select,.form-control:focus,.form-select:focus{
  background:color-mix(in srgb, var(--panel-strong) 96%, transparent);
  border:1px solid var(--line);
  color:var(--text);
  border-radius:18px;
  box-shadow:none;
}
.form-control::placeholder{color:color-mix(in srgb, var(--muted) 84%, transparent)}
.form-select option{color:#101828}
.form-label{font-weight:900;color:color-mix(in srgb, var(--text) 86%, transparent)}
.logo-badge{
  --badge-h:210;
  width:38px;height:38px;flex:0 0 38px;border-radius:14px;
  display:grid;place-items:center;
  background:linear-gradient(135deg, hsl(var(--badge-h) 82% 58% / .23), hsl(calc(var(--badge-h) + 45) 84% 62% / .20));
  border:1px solid color-mix(in srgb, hsl(var(--badge-h) 80% 62%) 24%, var(--line));
  color:var(--text);
  font-size:.78rem;font-weight:950;letter-spacing:.03em;
}
.course-card.completed{outline:2px solid rgba(46,230,166,.45)}
.course-actions{display:flex;align-items:center;justify-content:space-between;gap:.8rem;margin-top:1rem}
.complete-toggle{display:flex;align-items:center;gap:.45rem;color:var(--muted);font-weight:850;user-select:none}
.complete-toggle input{width:1.1rem;height:1.1rem;accent-color:#10adc5}
.path-detail{margin-top:1.2rem}
.detail-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}
.detail-box{border-radius:22px;background:color-mix(in srgb, var(--text) 5%, transparent);border:1px solid color-mix(in srgb, var(--text) 9%, transparent);padding:1rem}
.detail-box h4{font-size:1rem;font-weight:950}
.detail-box ul{margin:0;padding-left:1.1rem;color:var(--muted);line-height:1.7}
.course-sequence{margin-top:1.2rem}
.course-sequence .course-card{box-shadow:none}
.progress{background:color-mix(in srgb, var(--text) 8%, transparent);border-radius:999px;height:.75rem}
.progress-bar{background:linear-gradient(90deg,var(--cyan),var(--purple))}
.source-top{display:flex;align-items:center;justify-content:space-between;gap:.8rem;margin-bottom:.6rem}
.copy-code{background:color-mix(in srgb, var(--bg) 64%, var(--panel));border:1px solid color-mix(in srgb, var(--text) 10%, transparent);border-radius:18px;padding:1rem;color:var(--text);display:block;white-space:normal;line-height:1.55}
.table-darkish{--bs-table-bg: transparent;--bs-table-color: var(--text);--bs-table-border-color: color-mix(in srgb, var(--text) 12%, transparent)}
.table-darkish a{color:color-mix(in srgb, var(--cyan) 75%, white)}
.milestone-list{display:grid;gap:.65rem}
.check-row{display:flex;gap:.65rem;align-items:flex-start;padding:.75rem;border-radius:18px;background:color-mix(in srgb, var(--text) 5%, transparent);border:1px solid color-mix(in srgb, var(--text) 9%, transparent)}
.check-row input{margin-top:.3rem;accent-color:#10adc5}
.check-row strong{display:block}
.check-row span{color:var(--muted)}
.toast-mabni{position:fixed;right:1rem;bottom:1rem;z-index:2000;background:color-mix(in srgb, var(--bg) 92%, transparent);border:1px solid var(--line);color:var(--text);border-radius:20px;padding:.9rem 1rem;box-shadow:var(--shadow);opacity:0;transform:translateY(12px);pointer-events:none;transition:.25s ease}
.toast-mabni.show{opacity:1;transform:translateY(0)}
.footer{border-top:1px solid var(--line);padding:2rem 0;color:var(--muted)}
.modal-content{background:var(--bg3);border:1px solid var(--line);border-radius:28px;color:var(--text)}
.btn-close{filter:invert(1)}
@media (prefers-color-scheme: light){.btn-close{filter:none}}
.mini-stat{padding:1rem;border-radius:20px;background:color-mix(in srgb, var(--text) 5%, transparent);border:1px solid color-mix(in srgb, var(--text) 9%, transparent)}
.mini-stat strong{font-size:1.6rem;display:block}
.contact-icon{font-size:1.8rem;color:var(--cyan2)}
.small-link{color:var(--text);text-decoration:none;font-weight:850}
.small-link:hover{text-decoration:underline}
.hidden{display:none!important}
.swiper-pagination-bullet{background:var(--text);opacity:.35}
.swiper-pagination-bullet-active{background:var(--cyan2);opacity:1}
.swiper-button-next,.swiper-button-prev{color:var(--text);width:44px;height:44px;background:color-mix(in srgb, var(--panel-strong) 88%, transparent);border:1px solid var(--line);border-radius:50%}
.swiper-button-next::after,.swiper-button-prev::after{font-size:1rem;font-weight:900}
@media (max-width: 1199px){
  .card-grid.four{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width: 991px){
  .navbar-collapse{margin-top:.8rem;padding:1rem;border-radius:22px;background:color-mix(in srgb, var(--bg) 84%, var(--panel-strong));border:1px solid var(--line)}
  .page-shell{padding-top:78px}
  .hero-swiper,.hero-swiper .swiper-slide{min-height:auto}
  .hero-swiper .swiper-slide{padding:3.5rem 0 5rem}
  .hero-title{font-size:clamp(2.4rem,11vw,4.4rem)}
  .hero-preview{min-height:380px;margin-top:1.25rem}
  .preview-body,.detail-grid,.card-grid.three,.card-grid.four{grid-template-columns:1fr 1fr}
  .tool-strip{grid-template-columns:1fr}
}
@media (max-width: 767px){
  .section{padding:4.1rem 0}
  .hero-swiper .swiper-slide::before{inset:5% 3%}
  .hero-count,.preview-body,.preview-grid2,.card-grid.three,.card-grid.four,.detail-grid{grid-template-columns:1fr}
  .hero-preview{min-height:auto}
  .preview-window{min-height:360px}
  .preview-pills{justify-content:flex-start}
  .course-actions{flex-direction:column;align-items:stretch}
  .source-top{align-items:flex-start;flex-direction:column}
}
@media (max-width: 575px){
  .container{padding-left:1rem;padding-right:1rem}
  .hero-title{font-size:2.3rem}
  .hero-lead{font-size:1rem}
  .preview-topbar{flex-direction:column;align-items:flex-start}
  .swiper-button-next,.swiper-button-prev{display:none}
  .hero-count{gap:.65rem}
  .count-card,.glass-card,.path-card,.course-card,.source-card,.dashboard-card,.formula-card,.contact-card{border-radius:24px}
  .btn-mabni,.btn-soft{width:100%;justify-content:center}
}

/* v4.2 focused landing + prompt pages */
.landing-hero{min-height:calc(100vh - 82px);display:flex;align-items:center;padding:5.5rem 0;border-bottom:1px solid var(--line)}
.clean-title{max-width:900px}
.clean-lead{font-size:clamp(1.1rem,1.7vw,1.35rem);max-width:720px}
.action-panel{display:grid;gap:1rem}
.action-card{padding:1.15rem;border-radius:26px;background:linear-gradient(145deg,color-mix(in srgb, var(--panel-strong) 94%, transparent),color-mix(in srgb, var(--panel) 90%, transparent));border:1px solid var(--line);box-shadow:var(--shadow-soft)}
.action-card span{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:16px;background:linear-gradient(135deg,var(--cyan),var(--purple));color:#fff;font-weight:950;margin-bottom:.8rem}
.action-card strong{display:block;font-size:1.18rem;margin-bottom:.2rem}
.action-card p{color:var(--muted);margin:0;line-height:1.6}
.compact-head{margin-bottom:1.2rem}
.compact-path p,.compact-path .tag-row{display:none!important}
.path-card.selected{outline:2px solid color-mix(in srgb, var(--cyan) 55%, transparent)}
.logo-fav{width:38px;height:38px;flex:0 0 38px;border-radius:14px;background:#fff;padding:6px;object-fit:contain;border:1px solid var(--line)}
.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}
.step-card,.prompt-card{background:linear-gradient(145deg,color-mix(in srgb, var(--panel-strong) 92%, transparent),color-mix(in srgb, var(--panel) 90%, transparent));border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-soft);padding:1.2rem}
.step-card span{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:16px;background:linear-gradient(135deg,var(--cyan),var(--purple));color:#fff;font-weight:950;margin-bottom:.8rem}
.step-card h3,.prompt-card h2{font-weight:950;letter-spacing:-.04em}
.step-card p{color:var(--muted);line-height:1.65;margin:0}
.prompt-textarea{width:100%;min-height:470px;resize:vertical;border-radius:22px;border:1px solid var(--line);background:color-mix(in srgb, var(--bg) 68%, var(--panel));color:var(--text);padding:1rem;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono",monospace;font-size:.9rem;line-height:1.55;white-space:pre-wrap}
@media(max-width:991px){.landing-hero{min-height:auto;padding:4rem 0}.guide-grid{grid-template-columns:1fr}.action-panel{margin-top:1rem}}
@media(max-width:575px){.landing-hero{padding:3.2rem 0}.prompt-textarea{min-height:360px;font-size:.82rem}.hero-actions .btn-mabni,.hero-actions .btn-soft{width:100%;justify-content:center}}