/* Layout: classroom-to-production story — hero terminal "builds" a project; sections read like a course syllabus on a blueprint grid */
:root{
  --bg:#ffffff; --surface:#f4f7fd; --raised:#ffffff; --ink:#0b1b3a; --muted:#51607a;
  --line:#d9e3f5; --blue:#1d4ed8; --blue-deep:#123a9e; --sky:#e8f0ff; --on-blue:#ffffff;
  --ok:#0f7a4f; --err:#b42318; --term-bg:#0b1b3a; --term-fg:#dbe7ff; --term-dim:#7f93bd; --term-acc:#7fb0ff; --term-ok:#5ee0a8;
  --grid:rgba(29,78,216,.07); --shadow:0 18px 40px -18px rgba(11,27,58,.28);
  --f-display:"Bricolage Grotesque","Segoe UI",system-ui,sans-serif;
  --f-body:"Instrument Sans","Segoe UI",system-ui,-apple-system,sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,"Cascadia Code",Menlo,monospace;
  --r:14px; --wrap:1160px;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#07101f; --surface:#0c1830; --raised:#10203d; --ink:#e6eeff; --muted:#a3b3d1;
  --line:#1e3157; --blue:#5b8def; --blue-deep:#8fb2ff; --sky:#11264d; --on-blue:#06122a;
  --ok:#4fd39a; --err:#ff8a7a; --term-bg:#030913; --grid:rgba(91,141,239,.08); --shadow:0 18px 40px -18px rgba(0,0,0,.7); color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#07101f; --surface:#0c1830; --raised:#10203d; --ink:#e6eeff; --muted:#a3b3d1;
  --line:#1e3157; --blue:#5b8def; --blue-deep:#8fb2ff; --sky:#11264d; --on-blue:#06122a;
  --ok:#4fd39a; --err:#ff8a7a; --term-bg:#030913; --grid:rgba(91,141,239,.08); --shadow:0 18px 40px -18px rgba(0,0,0,.7); color-scheme:dark}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}
body{background:var(--bg);color:var(--ink);font:400 1rem/1.65 var(--f-body);-webkit-font-smoothing:antialiased}
a{color:var(--blue)}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-999px;top:8px;background:var(--blue);color:var(--on-blue);padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:16px}
.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:clamp(16px,4vw,32px)}
h1,h2,h3{font-family:var(--f-display);line-height:1.08;letter-spacing:-.02em;text-wrap:balance;margin:0}
h2{font-size:clamp(1.9rem,4vw,2.9rem);font-weight:700}
h3{font-size:1.2rem;font-weight:700;letter-spacing:-.01em}
p{margin:0}
.eyebrow{font:500 .78rem/1 var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--blue);display:inline-flex;align-items:center;gap:.55em}
.eyebrow::before{content:"";width:22px;height:2px;background:currentColor}
.lede{color:var(--muted);font-size:1.08rem;max-width:62ch}
section{padding-block:clamp(64px,9vw,112px)}
.sec-head{display:grid;gap:14px;margin-bottom:clamp(32px,5vw,52px);max-width:720px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;font:600 .98rem/1 var(--f-body);padding:.95em 1.4em;border-radius:999px;border:1.5px solid transparent;text-decoration:none;cursor:pointer;transition:transform .18s ease,background .18s,box-shadow .18s,border-color .18s;white-space:nowrap}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--blue);color:var(--on-blue);box-shadow:0 8px 22px -10px var(--blue)}
.btn-primary:hover{background:var(--blue-deep)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.btn svg{width:18px;height:18px}

/* nav */
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid transparent;transition:border-color .2s}
.nav.scrolled{border-bottom-color:var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;gap:16px;height:70px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);min-width:0}
.brand svg{width:36px;height:36px;flex:none}
.brand-name{font:800 1.08rem/1 var(--f-display);letter-spacing:-.02em}
.brand-name small{display:block;font:500 .66rem/1.3 var(--f-mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-top:3px}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.nav-links a{display:block;padding:.55em .85em;border-radius:999px;color:var(--muted);text-decoration:none;font-weight:500;font-size:.95rem;transition:color .15s,background .15s}
.nav-links a:hover{color:var(--ink);background:var(--surface)}
.nav-links a.active{color:var(--blue);background:var(--sky)}
.nav-cta{display:flex;align-items:center;gap:8px}
.icon-btn{width:42px;height:42px;border-radius:50%;border:1px solid var(--line);background:var(--raised);color:var(--ink);display:grid;place-items:center;cursor:pointer}
.icon-btn svg{width:19px;height:19px}
.menu-btn{display:none}
@media (max-width:920px){
  .nav-links{position:fixed;inset:70px 0 auto 0;flex-direction:column;align-items:stretch;gap:2px;padding:12px 16px 20px;background:var(--bg);border-bottom:1px solid var(--line);box-shadow:var(--shadow);transform:translateY(-8px);opacity:0;visibility:hidden;transition:.2s}
  .nav-links.open{transform:none;opacity:1;visibility:visible}
  .nav-links a{padding:.85em 1em;font-size:1.02rem}
  .menu-btn{display:grid}
  .nav-cta .btn{display:none}
}
@media (max-width:920px){.nav-links .mobile-cta{display:block;margin-top:8px}}
.nav-links .mobile-cta{display:none}
.nav-links .mobile-cta a{background:var(--blue);color:var(--on-blue);text-align:center}

/* hero */
.hero{position:relative;padding-block:clamp(48px,7vw,96px) clamp(56px,8vw,104px);overflow:hidden;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(ellipse 80% 70% at 70% 40%,#000 30%,transparent 80%);-webkit-mask-image:radial-gradient(ellipse 80% 70% at 70% 40%,#000 30%,transparent 80%)}
.hero::after{content:"";position:absolute;width:620px;height:620px;right:-160px;top:-180px;z-index:-1;border-radius:50%;background:radial-gradient(circle,color-mix(in srgb,var(--blue) 22%,transparent),transparent 65%);filter:blur(10px)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,5vw,64px);align-items:center}
.hero-copy{display:grid;gap:22px;min-width:0}
.hero h1{font-size:clamp(2.5rem,6.4vw,4.6rem);font-weight:800;letter-spacing:-.035em}
.hero h1 .hl{color:var(--blue);position:relative;white-space:nowrap}
.hero h1 .hl svg{position:absolute;left:0;bottom:-.12em;width:100%;height:.28em;overflow:visible}
.hero h1 .hl path{stroke:var(--blue);stroke-width:5;fill:none;stroke-linecap:round;stroke-dasharray:420;stroke-dashoffset:420;animation:draw 1.1s .5s cubic-bezier(.6,0,.2,1) forwards;opacity:.45}
@keyframes draw{to{stroke-dashoffset:0}}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px}
.hero-meta{display:flex;flex-wrap:wrap;gap:8px 18px;color:var(--muted);font-size:.9rem;margin-top:6px}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.hero-meta svg{width:17px;height:17px;color:var(--blue)}
@media (max-width:920px){.hero-grid{grid-template-columns:1fr}}

/* terminal visual */
.stage{position:relative;min-width:0;padding:28px 10px 34px}
.term{background:var(--term-bg);color:var(--term-fg);border-radius:16px;box-shadow:0 30px 60px -24px rgba(11,27,58,.55),0 0 0 1px rgba(127,176,255,.15);overflow:hidden;font:400 .84rem/1.75 var(--f-mono);transform:perspective(1400px) rotateY(-6deg) rotateX(3deg);transition:transform .6s ease}
.stage:hover .term{transform:perspective(1400px) rotateY(-2deg) rotateX(1deg)}
.term-bar{display:flex;align-items:center;gap:7px;padding:12px 16px;border-bottom:1px solid rgba(127,176,255,.14)}
.term-bar i{width:11px;height:11px;border-radius:50%;background:#3a4c74}
.term-bar i:first-child{background:#ff6b5e}.term-bar i:nth-child(2){background:#ffc34d}.term-bar i:nth-child(3){background:#3fd28b}
.term-bar b{margin-left:10px;font-weight:500;color:var(--term-dim);font-size:.78rem}
.term-body{padding:16px 18px 18px;min-height:292px;overflow-x:auto}
.term-line{white-space:pre}
.t-p{color:var(--term-acc)}.t-d{color:var(--term-dim)}.t-ok{color:var(--term-ok)}
.caret{display:inline-block;width:8px;height:1.05em;background:var(--term-acc);vertical-align:-2px;animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.progress{height:6px;border-radius:6px;background:rgba(127,176,255,.15);margin:10px 0 2px;overflow:hidden}
.progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--term-acc),var(--term-ok));border-radius:inherit;transition:width .35s ease}
.chip{position:absolute;display:flex;align-items:center;gap:8px;background:var(--raised);color:var(--ink);border:1px solid var(--line);border-radius:12px;padding:9px 13px;font:600 .82rem/1 var(--f-body);box-shadow:var(--shadow);animation:float 6s ease-in-out infinite}
.chip svg{width:18px;height:18px;color:var(--blue)}
.chip small{display:block;font:400 .7rem/1.2 var(--f-mono);color:var(--muted);margin-top:3px}
.chip.c1{left:-6px;top:0}
.chip.c2{right:-4px;top:38%;animation-delay:-2s}
.chip.c3{left:8%;bottom:0;animation-delay:-4s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
@media (max-width:520px){.chip.c2{display:none}.term{transform:none}.stage:hover .term{transform:none}}

/* stack ribbon */
.ribbon{border-block:1px solid var(--line);background:var(--surface);padding-block:18px;overflow:hidden}
.ribbon-track{display:flex;gap:44px;width:max-content;animation:marq 38s linear infinite;font:500 .9rem/1 var(--f-mono);color:var(--muted)}
.ribbon:hover .ribbon-track{animation-play-state:paused}
.ribbon-track span{display:inline-flex;align-items:center;gap:10px}
.ribbon-track span::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--blue);transform:rotate(45deg)}
@keyframes marq{to{transform:translateX(-50%)}}

/* about */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(32px,5vw,72px);align-items:start}
.about-copy{display:grid;gap:18px;min-width:0}
.about-copy p{color:var(--muted);max-width:62ch}
.about-copy p strong{color:var(--ink);font-weight:600}
.mission{background:var(--blue);color:var(--on-blue);border-radius:20px;padding:clamp(26px,4vw,38px);display:grid;gap:18px;position:relative;overflow:hidden}
.mission::after{content:"";position:absolute;right:-60px;bottom:-60px;width:220px;height:220px;border-radius:50%;border:34px solid rgba(255,255,255,.1)}
.mission .eyebrow{color:inherit;opacity:.85}
.mission blockquote{margin:0;font:700 clamp(1.3rem,2.4vw,1.65rem)/1.3 var(--f-display);letter-spacing:-.015em}
.mission ul{list-style:none;padding:0;margin:0;display:grid;gap:10px;position:relative;z-index:1}
.mission li{display:flex;gap:10px;align-items:flex-start;font-size:.96rem}
.mission li svg{flex:none;width:20px;height:20px;margin-top:2px}
@media (max-width:860px){.about-grid{grid-template-columns:1fr}}

/* courses */
.courses{background:var(--surface)}
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.filter{font:500 .88rem/1 var(--f-body);padding:.7em 1.1em;border-radius:999px;border:1px solid var(--line);background:var(--raised);color:var(--muted);cursor:pointer;transition:.15s}
.filter:hover{color:var(--ink);border-color:var(--blue)}
.filter[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
@media (max-width:980px){.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:620px){.course-grid{grid-template-columns:1fr}}
.course{background:var(--raised);border:1px solid var(--line);border-radius:18px;padding:24px;display:flex;flex-direction:column;gap:16px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s;position:relative}
.course:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:color-mix(in srgb,var(--blue) 45%,var(--line))}
.course[hidden]{display:none!important}
.course-top{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.course-ic{width:52px;height:52px;border-radius:14px;background:var(--sky);color:var(--blue);display:grid;place-items:center}
.course-ic svg{width:27px;height:27px}
.track{font:500 .7rem/1 var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);border:1px solid var(--line);padding:6px 9px;border-radius:999px}
.course p{color:var(--muted);font-size:.95rem}
.tags{display:flex;flex-wrap:wrap;gap:6px;list-style:none;padding:0;margin:0}
.tags li{font:500 .76rem/1 var(--f-mono);padding:6px 9px;border-radius:7px;background:var(--surface);color:var(--ink);border:1px solid var(--line)}
.build{font-size:.9rem;color:var(--ink);border-top:1px dashed var(--line);padding-top:14px;margin-top:auto}
.build b{font:500 .7rem/1 var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--blue);display:block;margin-bottom:6px}
.course .enq{align-self:flex-start;background:none;border:0;padding:0;color:var(--blue);font:600 .94rem/1 var(--f-body);cursor:pointer;display:inline-flex;gap:6px;align-items:center}
.course .enq svg{width:16px;height:16px;transition:transform .2s}
.course .enq:hover svg{transform:translateX(4px)}

/* approach */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;counter-reset:s;position:relative}
.steps::before{content:"";position:absolute;left:0;right:0;top:27px;height:2px;background:repeating-linear-gradient(90deg,var(--line) 0 8px,transparent 8px 14px)}
.step{position:relative;padding-right:24px;display:grid;gap:12px;align-content:start;min-width:0}
.step-n{width:56px;height:56px;border-radius:50%;background:var(--bg);border:2px solid var(--blue);color:var(--blue);display:grid;place-items:center;font:700 1rem/1 var(--f-mono);position:relative;z-index:1;transition:background .2s,color .2s}
.step:hover .step-n{background:var(--blue);color:var(--on-blue)}
.step p{color:var(--muted);font-size:.95rem}
.step .kw{font:500 .76rem/1.5 var(--f-mono);color:var(--blue)}
@media (max-width:900px){.steps{grid-template-columns:1fr 1fr;gap:36px 0}.steps::before{display:none}}
@media (max-width:540px){.steps{grid-template-columns:1fr;gap:28px}.step{padding-right:0;grid-template-columns:56px 1fr;column-gap:16px}.step-n{grid-row:span 3}}
.workflow{margin-top:clamp(40px,6vw,64px);background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:clamp(20px,3vw,28px);display:grid;grid-template-columns:auto 1fr;gap:24px;align-items:center}
.workflow h3{font-size:1.05rem}
.workflow p{color:var(--muted);font-size:.93rem;margin-top:4px}
.flow{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font:500 .8rem/1 var(--f-mono)}
.flow span{padding:8px 11px;border-radius:8px;background:var(--raised);border:1px solid var(--line)}
.flow i{color:var(--blue);font-style:normal}
@media (max-width:760px){.workflow{grid-template-columns:1fr}}

/* who */
.who{background:var(--ink);color:var(--bg)}
.who .eyebrow{color:color-mix(in srgb,var(--blue) 55%,var(--bg))}
.who .lede{color:color-mix(in srgb,var(--bg) 70%,var(--ink))}
.who-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:color-mix(in srgb,var(--bg) 16%,var(--ink));border-radius:18px;overflow:hidden}
.who-card{background:var(--ink);padding:28px 24px;display:grid;gap:12px;align-content:start;transition:background .2s}
.who-card:hover{background:color-mix(in srgb,var(--blue) 20%,var(--ink))}
.who-card svg{width:30px;height:30px;color:color-mix(in srgb,var(--blue) 60%,var(--bg))}
.who-card p{color:color-mix(in srgb,var(--bg) 70%,var(--ink));font-size:.94rem}
@media (max-width:900px){.who-grid{grid-template-columns:1fr 1fr}}
@media (max-width:540px){.who-grid{grid-template-columns:1fr}}

/* why */
.why-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.why{display:grid;grid-template-columns:auto 1fr;gap:18px;padding:26px;border:1px solid var(--line);border-radius:18px;background:var(--raised);transition:border-color .2s}
.why:hover{border-color:var(--blue)}
.why-ic{width:48px;height:48px;border-radius:12px;background:var(--sky);color:var(--blue);display:grid;place-items:center}
.why-ic svg{width:24px;height:24px}
.why div{display:grid;gap:6px;min-width:0}
.why p{color:var(--muted);font-size:.95rem}
.note{margin-top:22px;font-size:.88rem;color:var(--muted);display:flex;gap:8px;align-items:flex-start}
.note svg{flex:none;width:18px;height:18px;color:var(--blue);margin-top:2px}
@media (max-width:760px){.why-grid{grid-template-columns:1fr}}

/* contact */
.contact{background:var(--surface)}
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(28px,4vw,56px);align-items:start}
.info{display:grid;gap:14px;min-width:0}
.info-item{display:grid;grid-template-columns:44px minmax(0,1fr) auto;gap:14px;align-items:center;padding:16px;border-radius:14px;background:var(--raised);border:1px solid var(--line)}
.info-item .ic{width:44px;height:44px;border-radius:12px;background:var(--sky);color:var(--blue);display:grid;place-items:center}
.info-item .ic svg{width:21px;height:21px}
.info-item small{display:block;font:500 .7rem/1 var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}
.info-item span{font-weight:600;word-break:break-word}
.copy-btn{font:500 .78rem/1 var(--f-body);border:1px solid var(--line);background:transparent;color:var(--muted);padding:8px 10px;border-radius:8px;cursor:pointer}
.copy-btn:hover{color:var(--blue);border-color:var(--blue)}
.placeholder-flag{font-size:.84rem;color:var(--muted);background:var(--raised);border:1px dashed var(--line);border-radius:12px;padding:12px 14px}
form{background:var(--raised);border:1px solid var(--line);border-radius:20px;padding:clamp(20px,3.5vw,34px);display:grid;gap:18px;box-shadow:var(--shadow)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:620px){.row{grid-template-columns:1fr}}
@media (max-width:860px){.contact-grid{grid-template-columns:1fr}}
.field{display:grid;gap:7px;min-width:0}
label{font-weight:600;font-size:.9rem}
label .req{color:var(--blue)}
input,select,textarea{width:100%;font:400 1rem/1.4 var(--f-body);color:var(--ink);background:var(--bg);border:1.5px solid var(--line);border-radius:11px;padding:.8em .95em;transition:border-color .15s,box-shadow .15s}
textarea{min-height:120px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px color-mix(in srgb,var(--blue) 18%,transparent)}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:var(--err)}
.err{font-size:.83rem;color:var(--err);min-height:0}
.err:empty{display:none}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:.88rem;color:var(--muted)}
.consent input{width:18px;height:18px;margin-top:3px;flex:none;accent-color:var(--blue)}
.form-foot{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between}
.form-foot small{color:var(--muted);font-size:.82rem}
.status{border-radius:12px;padding:14px 16px;font-size:.93rem;display:flex;gap:10px;align-items:flex-start}
.status svg{flex:none;width:20px;height:20px;margin-top:1px}
.status.ok{background:color-mix(in srgb,var(--ok) 12%,var(--raised));color:var(--ink);border:1px solid color-mix(in srgb,var(--ok) 40%,transparent)}
.status.ok svg{color:var(--ok)}
.status.bad{background:color-mix(in srgb,var(--err) 10%,var(--raised));border:1px solid color-mix(in srgb,var(--err) 40%,transparent)}
.status.bad svg{color:var(--err)}
.btn[disabled]{opacity:.6;cursor:progress}

/* footer */
footer{background:var(--bg);border-top:1px solid var(--line);padding-block:48px 28px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px}
.foot-grid h4{font:500 .74rem/1 var(--f-mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 14px}
.foot-grid ul{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.foot-grid a,.linkbtn{color:var(--ink);text-decoration:none;font-size:.95rem;background:none;border:0;padding:0;cursor:pointer;font-family:inherit}
.foot-grid a:hover,.linkbtn:hover{color:var(--blue)}
.foot-grid p{color:var(--muted);font-size:.93rem;max-width:40ch;margin-top:12px}
.foot-bottom{margin-top:36px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;color:var(--muted);font-size:.86rem}
@media (max-width:760px){.foot-grid{grid-template-columns:1fr}}

/* modal */
dialog{border:0;border-radius:20px;padding:0;max-width:min(640px,calc(100vw - 32px));width:100%;background:var(--raised);color:var(--ink);box-shadow:0 40px 80px -20px rgba(0,0,0,.45)}
dialog::backdrop{background:rgba(7,16,31,.55);backdrop-filter:blur(3px)}
.dlg-head{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:20px 24px;border-bottom:1px solid var(--line)}
.dlg-body{padding:20px 24px 26px;max-height:60vh;overflow:auto;display:grid;gap:12px;color:var(--muted);font-size:.95rem}
.dlg-body h4{color:var(--ink);margin:6px 0 0;font-size:1rem}

.to-top{position:fixed;right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:40;width:46px;height:46px;border-radius:50%;background:var(--blue);color:var(--on-blue);border:0;display:grid;place-items:center;cursor:pointer;box-shadow:var(--shadow);opacity:0;transform:translateY(12px);pointer-events:none;transition:.25s}
.to-top.show{opacity:1;transform:none;pointer-events:auto}
.to-top svg{width:20px;height:20px}
.toast{position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom,0px));transform:translate(-50%,20px);background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:10px;font-size:.9rem;opacity:0;transition:.25s;z-index:60;pointer-events:none}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---- production additions ---- */
.course-meta{display:flex;flex-wrap:wrap;gap:6px 16px;list-style:none;padding:0;margin:-4px 0 0;font-size:.86rem;color:var(--muted)}
.course-meta li{display:inline-flex;align-items:center;gap:6px}
.course-meta svg{width:16px;height:16px;color:var(--blue)}
.syllabus{border:1px solid var(--line);border-radius:12px;background:var(--surface)}
.syllabus summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:8px;padding:11px 14px;font-weight:600;font-size:.92rem;color:var(--ink)}
.syllabus summary::-webkit-details-marker,.qa summary::-webkit-details-marker{display:none}
.syllabus summary svg,.qa summary svg{width:18px;height:18px;color:var(--blue);flex:none;transition:transform .2s}
.syllabus[open] summary svg,.qa[open] summary svg{transform:rotate(45deg)}
.syllabus ol{margin:0;padding:2px 16px 4px 34px;display:grid;gap:7px;font-size:.88rem;color:var(--muted)}
.syllabus ol li::marker{font:500 .78rem var(--f-mono);color:var(--blue)}
.syllabus h4{margin:12px 14px 6px;font:500 .7rem/1 var(--f-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--blue)}
.outcomes{list-style:none;margin:0;padding:0 14px 14px;display:grid;gap:6px;font-size:.88rem}
.outcomes li{display:flex;gap:8px;align-items:flex-start}
.outcomes svg{width:16px;height:16px;color:var(--ok);flex:none;margin-top:3px}

.faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(28px,4vw,56px);align-items:start}
.faq-list{display:grid;gap:10px;min-width:0}
.qa{border:1px solid var(--line);border-radius:14px;background:var(--raised);transition:border-color .2s}
.qa[open]{border-color:color-mix(in srgb,var(--blue) 45%,var(--line))}
.qa summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:12px;align-items:center;padding:16px 18px;font-weight:600}
.qa p{padding:0 18px 18px;color:var(--muted);max-width:65ch}
@media (max-width:860px){.faq-grid{grid-template-columns:1fr}}

.hp{position:absolute!important;left:-10000px;width:1px;height:1px;overflow:hidden}
.info-item a{color:var(--ink);font-weight:600;text-decoration:none;word-break:break-word}
.info-item a:hover{color:var(--blue)}
.info-item a.copy-btn{font-weight:500;color:var(--muted)}
.info-item address{font-style:normal;font-weight:600;line-height:1.5}
.info-item:has(> div:last-child) {grid-template-columns:44px 1fr}
.consent .linkbtn{color:var(--blue);font-size:inherit;text-decoration:underline}
.foot-addr{color:var(--muted);font-size:.93rem;line-height:1.55}
.foot-legal{display:flex;gap:18px;flex-wrap:wrap}
.foot-bottom .linkbtn{font-size:.86rem;color:var(--muted)}
.wa-float{position:fixed;right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:41;width:54px;height:54px;border-radius:50%;background:#1fa855;color:#fff;display:grid;place-items:center;box-shadow:0 12px 26px -10px rgba(31,168,85,.7);transition:transform .2s}
.wa-float:hover{transform:scale(1.07)}
.wa-float svg{width:28px;height:28px}
.to-top{bottom:calc(82px + env(safe-area-inset-bottom,0px))}
.brand-mark{width:36px;height:36px;flex:none;display:block}
footer .brand-mark{width:34px;height:34px}