/* =========================================================================
   CDSP Component Library  —  single source of truth for every page.
   Token contract ported from shadcn/ui (CSS variables); component CSS ported
   from shadcn/ui button.tsx / card.tsx / badge.tsx / table.tsx, with row
   rhythm from Linear/Geist. Restrained accent: violet on CTAs + focus only.
   Documented in design/DESIGN.md. No per-page one-off styles.
   ========================================================================= */

/* ---- TOKENS (shadcn variable contract, dark violet-only) ---- */
:root{
  --background:#0a0a0c;
  --foreground:#f3f4f8;       /* headings / strong text */
  --body:#b9b8c6;            /* paragraph text */
  --card:#111114;            /* raised surface */
  --card-2:#17171b;          /* insets: thumbnails, icon tiles */
  --muted:#1b1b20;           /* muted fill */
  --muted-foreground:#8b8b95;/* meta, captions, secondary icons */
  --secondary:#1b1b20;
  --secondary-foreground:#e7e7ec;
  --accent:#1c1c22;          /* NEUTRAL hover surface (not violet) */
  --accent-foreground:#f3f4f8;
  --primary:#0059f2;         /* RealismButton blue — site accent */
  --primary-hover:#2f86ff;
  --primary-active:#0a40b8;
  --primary-foreground:#ffffff;
  --border:rgba(255,255,255,.08);
  --input:rgba(255,255,255,.14);
  --ring:#0059f2;

  --radius:12px; --radius-sm:9px; --radius-lg:12px; --radius-pill:999px;

  --s1:4px; --s2:8px; --s3:12px; --s4:16px; --s5:20px; --s6:24px;
  --s8:32px; --s10:40px; --s12:48px; --s16:64px; --s20:80px;

  --disp:"Poppins",system-ui,sans-serif;
  --font:"Hanken Grotesk",system-ui,sans-serif;
  --ease:cubic-bezier(.2,.6,.2,1);
  --maxw:1180px;

  /* semantic z-index scale */
  --z-sticky:30; --z-nav:50; --z-modal:100; --z-toast:120;
}

/* ---- BASE ---- */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);font-size:17px;line-height:1.65;background:var(--background);color:var(--body);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit}
[hidden]{display:none!important}
::selection{background:rgba(0,89,242,.32);color:#fff}
:focus-visible{outline:2px solid rgba(255,255,255,.45);outline-offset:2px;border-radius:6px}
.faq-q:focus-visible{outline:none;color:#fff}
.faq-q:focus-visible .pm{color:#fff}

/* ---- LAYOUT PRIMITIVES ---- */
.container{max-width:var(--maxw);margin:0 auto;padding:0 var(--s6)}
.section{padding:clamp(56px,9vw,104px) 0}
.section-tight{padding:clamp(40px,6vw,64px) 0}
.stack-sm > * + *{margin-top:var(--s3)}
.lead{font-size:clamp(1.02rem,1.5vw,1.2rem);color:var(--body);line-height:1.6;max-width:60ch}

/* ---- TYPOGRAPHY ---- */
h1,h2,h3,h4{font-family:var(--disp);color:var(--foreground);font-weight:700;line-height:1.06;
  letter-spacing:-.02em;text-wrap:balance}
p{text-wrap:pretty}
.t-hero{font-size:clamp(3rem,7.2vw,5.75rem);line-height:1.02;letter-spacing:-.01em}
.t-section{font-size:clamp(1.8rem,3.4vw,2.7rem);letter-spacing:-.015em}
.t-card{font-size:1.3rem;font-weight:600;letter-spacing:-.015em;line-height:1.2}
.t-sub{font-size:1.15rem;font-weight:600;letter-spacing:-.01em}
.muted{color:var(--muted-foreground)}
.accent-text{color:var(--primary)}            /* used sparingly, headlines only */

/* =========================================================================
   BUTTON  — ported from shadcn/ui button.tsx
   one consistent height(40)/radius(10)/padding; hover=color shift; no scale/glow
   ========================================================================= */
/* Exact recreation of Framer RealismButton: rest = dark + blue corner glow; hover = blue + rotating edge light */
@property --btn-a{syntax:"<angle>";inherits:false;initial-value:0deg}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--s2);white-space:nowrap;position:relative;isolation:isolate;overflow:hidden;
  height:48px;padding:0 26px;border:2px solid transparent;border-radius:14px;cursor:pointer;user-select:none;
  font-family:var(--font);font-weight:700;font-size:1rem;letter-spacing:.2px;color:#fff;
  background:radial-gradient(150px at 80% -45%,#2b2b30,#0f1111 70%) padding-box,linear-gradient(180deg,rgba(255,255,255,.5),rgba(255,255,255,.18)) border-box;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.2),inset 0 -1px 0 rgba(0,0,0,.55),0 8px 22px -12px rgba(0,0,0,.6);
  transition:transform .25s cubic-bezier(.2,.8,.2,1),box-shadow .3s var(--ease),background .3s var(--ease)}
.btn::before,.all-lessons::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:2px;pointer-events:none;z-index:1;opacity:0;transition:opacity .25s;
  background:conic-gradient(from var(--btn-a),transparent 0deg,transparent 58deg,#0059f2 96deg,#ffffff 114deg,#0059f2 132deg,transparent 170deg,transparent 360deg);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;
  mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);mask-composite:exclude;
  animation:btnring 1.8s linear infinite}
@keyframes btnring{to{--btn-a:360deg}}
.btn svg{width:18px;height:18px}
.btn:hover,.all-lessons:hover{background:radial-gradient(150px at 80% -45%,#333339,#0f1111 70%) padding-box,linear-gradient(180deg,rgba(255,255,255,.5),rgba(255,255,255,.18)) border-box;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.25),inset 0 -1px 0 rgba(0,0,0,.55),0 12px 30px -10px rgba(0,89,242,.45)}
.btn:hover::before,.all-lessons:hover::before{opacity:1}
.btn:active,.all-lessons:active{transform:scale(.96)}
.btn:disabled{opacity:.5;pointer-events:none}
.btn-sm{height:40px;padding:0 18px;font-size:.9rem;border-radius:12px}
.btn-lg{height:54px;padding:0 30px;font-size:1.05rem;border-radius:16px}
.btn-block{width:100%}
@media(prefers-reduced-motion:reduce){.btn::before,.all-lessons::before{animation:none}}

/* =========================================================================
   BADGE / CHIP  — ported from shadcn/ui badge.tsx (outline variant)
   ========================================================================= */
.badge{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:var(--radius-pill);
  font-family:var(--font);font-size:.76rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  border:1px solid rgba(255,255,255,.06);color:#bdbdbd;background:radial-gradient(circle at top right,rgba(255,255,255,.06),transparent 45%),#0a0a0a;box-shadow:inset 0 1px 0 rgba(255,255,255,.05),0 6px 18px -10px rgba(0,0,0,.5)}
.badge.blue{border-color:rgba(0,89,242,.45);color:#7aa9ff;background:rgba(0,89,242,.10);box-shadow:inset 0 1px 0 rgba(255,255,255,.04)}
.badge.green{border-color:rgba(34,197,94,.45);color:#63d68d;background:rgba(34,197,94,.10);box-shadow:inset 0 1px 0 rgba(255,255,255,.04)}
.badge.accel{text-transform:none;letter-spacing:0;font-size:.92rem;font-weight:500;height:auto;padding:7px 18px;gap:5px;background:transparent;border:none}
.badge.accel .accel-mark{width:19px;height:19px;object-fit:contain;flex:none;margin-right:-1px}
.badge.accel b{font-family:var(--disp);font-weight:600;color:#fff;letter-spacing:-.01em;margin-left:-3px;position:relative;top:1px}
.chip{display:inline-flex;align-items:center;height:36px;padding:0 18px;border-radius:var(--radius-pill);
  font-size:.9rem;font-weight:500;color:var(--body);border:1px solid rgba(255,255,255,.06);
  background:radial-gradient(circle at top right,rgba(255,255,255,.06),transparent 40%),#0a0a0a;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05),0 6px 18px -10px rgba(0,0,0,.5)}

/* =========================================================================
   CARD  — ported from shadcn/ui card.tsx  (no nested cards)
   ========================================================================= */
.card{border:1px solid rgba(255,255,255,.06);border-radius:36px;
  background:radial-gradient(circle at top right,rgba(255,255,255,.06),transparent 40%),#0a0a0a;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05), 0 25px 60px rgba(0,0,0,.5);
  transition:border-color .2s var(--ease)}
.card:hover{border-color:rgba(255,255,255,.11)}
.card-pad{padding:34px}
.card-title{font-family:var(--disp);font-weight:600;letter-spacing:-.015em;color:var(--foreground)}
.card-desc{color:var(--body);font-size:.95rem}

/* flat icon tile — hairline + monochrome icon, NO gradient/glow */
.icon-tile{width:44px;height:44px;border-radius:14px;border:1px solid rgba(255,255,255,.06);
  background:radial-gradient(circle at top right,rgba(255,255,255,.06),transparent 45%),#0a0a0a;box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
  display:grid;place-items:center;color:#e6e6e6;flex:none}
.icon-tile svg{width:20px;height:20px}

/* =========================================================================
   LIST ROW  — ported from shadcn/ui table.tsx TableRow (hairline divider + hover)
   ========================================================================= */
.rows{margin-top:var(--s3)}
.row{display:flex;align-items:center;gap:var(--s4);padding:14px 12px;margin:0 -12px;
  border-bottom:1px solid var(--border);transition:background .15s var(--ease)}
.row:last-child{border-bottom:0}
.row:hover{background:rgba(255,255,255,.025)}

/* flat thumbnail — hairline + monochrome play icon */
.thumb{width:88px;height:56px;border-radius:9px;flex:none;border:1px solid var(--border);
  background:radial-gradient(circle at top right,rgba(255,255,255,.06),transparent 45%),#0a0a0a;box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
  display:grid;place-items:center;color:var(--muted-foreground);position:relative}
.thumb::after{content:"";position:absolute;inset:0;border-radius:inherit;
  background:radial-gradient(60% 80% at 50% 35%,rgba(255,255,255,.05),transparent 70%);pointer-events:none}
.thumb svg{width:17px;height:17px;position:relative}
.row-title{font-family:var(--disp);font-size:1rem;font-weight:600;line-height:1.3;flex:1;color:var(--foreground);
  letter-spacing:-.01em;min-width:0}
.row-meta{display:flex;align-items:center;gap:10px;color:var(--muted-foreground);font-size:.85rem;flex:none}
.row-meta .dur{font-variant-numeric:tabular-nums}
.row-meta svg{width:15px;height:15px}          /* small inline mono lock / heart */

/* =========================================================================
   NAV
   ========================================================================= */
header.nav{position:sticky;top:0;z-index:var(--z-nav);background:rgba(10,10,12,.78);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;gap:var(--s6);height:72px;position:relative}
.brand{display:flex;align-items:center;gap:6px;font-family:var(--disp);font-weight:700;font-size:1.1rem;
  color:var(--foreground);letter-spacing:-.01em}
.brand .logo{width:34px;height:34px;display:grid;place-items:center;flex:none}
.brand .logo img{width:34px;height:34px;object-fit:contain;display:block}
nav.links{display:flex;gap:2px;position:absolute;left:50%;transform:translateX(-50%)}
nav.links a{padding:8px 13px;border-radius:8px;font-size:.95rem;color:var(--muted-foreground);
  transition:color .15s var(--ease),background .15s var(--ease)}
nav.links a:hover{color:var(--foreground);background:var(--accent)}
nav.links a.active{color:var(--foreground)}
.nav-cta{margin-left:auto;display:flex;align-items:center;gap:var(--s2)}
.nav-link{display:inline-flex;align-items:center;gap:7px;color:var(--muted-foreground);font-size:.95rem;
  padding:8px 12px;border-radius:8px;transition:color .15s var(--ease),background .15s var(--ease)}
.nav-link:hover{color:var(--foreground);background:var(--accent)}
.nav-link svg{width:16px;height:16px}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;
  border:1px solid var(--input);border-radius:10px;background:transparent;cursor:pointer;padding:0 11px;margin-left:auto}
.nav-toggle span{display:block;height:2px;width:100%;background:var(--foreground);border-radius:2px;transition:.25s var(--ease)}
header.nav.open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
header.nav.open .nav-toggle span:nth-child(2){opacity:0}
header.nav.open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{display:none;flex-direction:column;gap:2px;padding:var(--s4) var(--s6) var(--s6);
  border-top:1px solid var(--border);background:var(--background)}
.mobile-menu a:not(.btn){padding:12px 8px;font-size:1rem;color:var(--foreground);border-radius:8px}
.mobile-menu a:not(.btn):hover{background:var(--accent)}
.mobile-menu a.btn{margin-top:var(--s2);justify-content:center}

/* =========================================================================
   FOOTER
   ========================================================================= */
footer{border-top:1px solid var(--border);background:#08080a;padding:clamp(48px,7vw,72px) 0 var(--s10)}
.foot-grid{display:flex;justify-content:space-between;gap:var(--s10);flex-wrap:wrap}
.foot-grid .col{min-width:0}
.foot-grid .col h5{color:var(--muted-foreground);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;margin-bottom:var(--s4)}
.foot-grid .col a{display:block;color:var(--body);font-size:.95rem;padding:5px 0;transition:color .15s var(--ease)}
.foot-grid .col a:hover{color:var(--foreground)}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--border);
  margin-top:var(--s10);padding-top:var(--s6);color:var(--muted-foreground);font-size:.85rem;flex-wrap:wrap;gap:var(--s3)}

/* =========================================================================
   FORMS (auth pages)
   ========================================================================= */
.auth-shell{min-height:100vh;display:grid;place-items:center;padding:var(--s8) var(--s5)}
.auth-card{width:100%;max-width:540px;border:1px solid rgba(255,255,255,.06);
  background:radial-gradient(circle at top right,rgba(255,255,255,.06),transparent 40%),#0a0a0a;
  border-radius:36px;box-shadow:inset 0 1px 0 rgba(255,255,255,.05),0 25px 60px rgba(0,0,0,.5);
  padding:clamp(28px,4vw,40px)}
.auth-card .brand{margin-bottom:var(--s6)}
.auth-card h1{margin-bottom:8px;font-size:clamp(1.8rem,4vw,2.3rem);line-height:1.1}
.auth-card .lead{color:var(--muted-foreground);font-size:.9rem;margin-bottom:var(--s6)}
.auth-card .btn{margin-top:26px}
.field{margin-bottom:var(--s4)}
.field label{display:block;font-size:.85rem;font-weight:500;color:var(--foreground);margin-bottom:7px}
.field .hint{display:flex;justify-content:space-between;align-items:center}
.field .hint a{color:var(--muted-foreground);font-size:.82rem}
.field .hint a:hover{color:var(--foreground)}
.input{width:100%;height:44px;padding:0 14px;border-radius:10px;border:1px solid rgba(255,255,255,.06);
  background:radial-gradient(circle at top right,rgba(255,255,255,.06),transparent 45%),#0a0a0a;box-shadow:inset 0 1px 0 rgba(255,255,255,.05);color:var(--foreground);font:inherit;font-size:.97rem;transition:border-color .15s var(--ease)}
.input::placeholder{color:#62626c}
.input:focus{outline:none;border-color:var(--ring)}
.auth-alt{margin-top:var(--s5);text-align:center;color:var(--muted-foreground);font-size:.92rem}
.auth-alt a{color:var(--foreground);font-weight:500}
.auth-alt a:hover{color:var(--primary)}
/* OTP digit boxes */
.otp-row{display:flex;gap:var(--s2);justify-content:space-between}
.otp-row .input{width:100%;min-width:0;text-align:center;font-family:var(--disp);font-size:1.4rem;font-weight:600;padding:0;height:56px}

/* status / empty shells (success, access-denied, favorites-empty) */
.status-shell{min-height:70vh;display:grid;place-items:center;text-align:center;padding:var(--s12) var(--s5)}
.status-shell .icon-tile{width:64px;height:64px;border-radius:16px;margin:0 auto var(--s6)}
.status-shell .icon-tile svg{width:30px;height:30px}
.status-shell p{color:var(--body);max-width:46ch;margin:var(--s4) auto 0}
.status-shell .btns{display:flex;gap:var(--s3);justify-content:center;margin-top:var(--s8);flex-wrap:wrap}

/* =========================================================================
   MOTION  (visible by default; enhances only when html.js; reduced-motion safe)
   ========================================================================= */
.reveal{opacity:1}
html.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
html.js .reveal.in{opacity:1;transform:none}
html.js [data-anim]{opacity:0;transform:translateY(14px);animation:rise .7s var(--ease) forwards}
html.js [data-anim="2"]{animation-delay:.08s}
html.js [data-anim="3"]{animation-delay:.16s}
html.js [data-anim="4"]{animation-delay:.24s}
html.js [data-anim="5"]{animation-delay:.32s}
@keyframes rise{to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  html.js .reveal,html.js [data-anim]{opacity:1!important;transform:none!important;animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* =========================================================================
   COMPOSED SECTIONS  (reusable page layouts built from the components above)
   ========================================================================= */

/* HERO */
.hero{position:relative;text-align:center;padding:clamp(64px,10vw,120px) 0 0}
.hero::before{content:"";position:absolute;inset:0 0 auto;height:520px;pointer-events:none;
  background:radial-gradient(60% 80% at 50% 0%,rgba(255,255,255,.035),transparent 70%)}
.hero .container{position:relative}
.hero h1{margin:var(--s5) auto 0;max-width:16ch}
.hero .sub{font-size:clamp(1.05rem,1.6vw,1.25rem);color:var(--body);max-width:none;margin:var(--s5) auto 0;line-height:1.55}
.hero-cta{display:flex;gap:var(--s3);justify-content:center;margin-top:var(--s8);flex-wrap:wrap}
.meta-row{display:flex;gap:var(--s2);justify-content:center;flex-wrap:wrap;margin-top:var(--s6)}

/* MEDIA FRAME (placeholder for Higgsfield clips) — flat, hairline, mono play */
.media-frame{position:relative;margin:clamp(36px,6vw,64px) auto 0;max-width:980px;border-radius:var(--radius-lg);
  border:1px solid var(--border);background:var(--card);overflow:hidden;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05), 0 30px 70px -34px rgba(0,0,0,.85)}
.media-frame .bar{height:40px;display:flex;align-items:center;gap:7px;padding:0 16px;border-bottom:1px solid var(--border)}
.media-frame .bar i{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.12)}
.media{position:relative;aspect-ratio:16/9;display:grid;place-items:center;text-align:center;
  background:radial-gradient(80% 100% at 50% 30%,#17171e,#0c0c10)}
.media video,.media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.play{width:56px;height:56px;border-radius:50%;border:1px solid var(--input);background:rgba(255,255,255,.04);
  display:grid;place-items:center;color:var(--foreground);transition:background .15s var(--ease),border-color .15s var(--ease)}
.play svg{width:20px;height:20px;margin-left:3px}
a:hover > .play,.play:hover{background:var(--accent);border-color:rgba(255,255,255,.24)}
.ph-label{position:absolute;bottom:14px;left:0;right:0;color:var(--muted-foreground);font-size:.78rem}

/* TRUST STRIP */
.strip{text-align:center;padding:clamp(40px,6vw,64px) 0}
.strip .label{color:var(--muted-foreground);font-size:.88rem;margin-bottom:var(--s5)}
.strip-logos{display:flex;gap:clamp(22px,5vw,52px);justify-content:center;align-items:center;flex-wrap:wrap;
  font-family:var(--disp);font-weight:600;font-size:1.15rem;color:rgba(243,244,248,.34)}

/* DETAIL TWO-COL + sticky buy card */
.detail-grid{display:grid;grid-template-columns:330px minmax(0,1fr);gap:clamp(28px,5vw,60px);align-items:start}
.buy-card{position:sticky;top:92px}
.buy-card .seal-row{display:flex;align-items:center;gap:var(--s3);margin-bottom:var(--s5)}
.buy-card .seal{width:52px;height:52px;border-radius:12px;border:1px solid var(--border);background:var(--card-2);
  display:grid;place-items:center;flex:none;overflow:hidden}
.buy-card .seal img{width:36px;height:36px;object-fit:contain}
.buy-card .seal-row .meta{font-size:.82rem;color:var(--muted-foreground)}
.buy-card .seal-row .meta b{display:block;color:var(--foreground);font-family:var(--disp);font-weight:600;font-size:.95rem;letter-spacing:.02em}
.buy-card h3{font-size:1.2rem}
.buy-card .price{margin-top:var(--s5);display:flex;align-items:baseline;gap:var(--s3);flex-wrap:wrap}
.buy-card .price .now{font-family:var(--disp);font-size:2.2rem;font-weight:700;line-height:1;color:var(--foreground)}
.buy-card .price .was{color:var(--muted-foreground);text-decoration:line-through;font-size:1rem}
.buy-card .price .save{margin-left:auto}
.buy-card .actions{margin-top:var(--s6);display:flex;flex-direction:column;gap:var(--s2)}
.buy-card .note{display:flex;align-items:center;justify-content:center;gap:7px;color:var(--muted-foreground);font-size:.85rem;margin-top:var(--s2)}
.buy-card .note svg{width:15px;height:15px}

/* right column rhythm */
.rcol > section + section{margin-top:clamp(48px,7vw,88px)}
.sec-head{max-width:60ch}
.sec-head .lead{margin-top:var(--s4)}

/* CURRICULUM module */
.module{margin-top:var(--s5)}
.module:first-of-type{margin-top:var(--s6)}
.module-head{display:flex;align-items:center;gap:var(--s4)}
.module-head .mtag{color:var(--muted-foreground);font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;font-weight:600}
.module-head h3{font-size:1.2rem;margin-top:2px}
.module-desc{color:var(--body);margin:var(--s4) 0 0;font-size:.96rem}
.all-lessons{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;position:relative;isolation:isolate;overflow:hidden;
  border:2px solid transparent;border-radius:14px;height:50px;margin-top:var(--s4);
  font-family:var(--font);font-weight:700;font-size:.95rem;letter-spacing:.2px;color:#fff;cursor:pointer;
  background:radial-gradient(150px at 80% -45%,#2b2b30,#0f1111 70%) padding-box,linear-gradient(180deg,rgba(255,255,255,.5),rgba(255,255,255,.18)) border-box;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.2),inset 0 -1px 0 rgba(0,0,0,.55),0 8px 22px -12px rgba(0,0,0,.6);
  transition:box-shadow .3s var(--ease),background .3s var(--ease)}
.all-lessons svg{width:16px;height:16px}

/* EXAM banner */
.exam{margin-top:var(--s6);display:flex;align-items:center;gap:var(--s4);flex-wrap:wrap}
.exam .copy h3{font-size:1.15rem}
.exam .copy p{color:var(--body);font-size:.9rem;margin-top:4px}
.exam .locked{margin-left:auto;display:flex;align-items:center;gap:7px;color:var(--muted-foreground);
  font-size:.82rem;border:1px solid rgba(255,255,255,.06);border-radius:var(--radius-pill);padding:8px 14px;white-space:nowrap;background:radial-gradient(circle at top right,rgba(255,255,255,.06),transparent 45%),#0a0a0a;box-shadow:inset 0 1px 0 rgba(255,255,255,.05)}
.exam .locked svg{width:14px;height:14px}
a.exam{text-decoration:none;color:inherit;transition:border-color .16s ease,transform .16s ease}
a.exam:hover{border-color:rgba(255,255,255,.14)}
a.exam:hover .exam-cta svg{transform:translateX(3px)}
.exam .exam-cta{margin-left:auto;display:flex;align-items:center;gap:7px;color:var(--foreground);
  font-size:.85rem;font-weight:600;border:1px solid rgba(0,89,242,.4);border-radius:var(--radius-pill);padding:9px 16px;white-space:nowrap;background:radial-gradient(circle at top right,rgba(0,89,242,.16),transparent 60%),#0a0a0a;box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}
.exam .exam-cta svg{width:15px;height:15px;transition:transform .16s ease}

/* TEACHER */
.teacher-grid{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:clamp(28px,5vw,52px);align-items:center}
.teacher-grid p{color:var(--body);margin-top:var(--s4);max-width:48ch}
.teacher-grid .follow{margin-top:var(--s6)}
.badge-display{aspect-ratio:1/1.1;border-radius:var(--radius-lg);border:1px solid var(--border);background:var(--card);
  display:grid;place-items:center}
.badge-display img{width:130px;height:130px;object-fit:contain}

/* SPEC BAR (course info) — single divided panel, not a card grid */
.spec-bar{display:grid;grid-template-columns:repeat(3,1fr);overflow:hidden;margin-top:var(--s5)}
.spec{display:flex;align-items:center;gap:var(--s4);padding:clamp(18px,3vw,26px)}
.spec + .spec{border-left:1px solid var(--border)}
.spec .lbl{color:var(--muted-foreground);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase}
.spec .val{font-family:var(--disp);font-weight:600;font-size:1.1rem;color:var(--foreground);margin-top:4px;letter-spacing:-.01em}

/* ABOUT */
.prose p{color:var(--body);margin-top:var(--s4);max-width:62ch}
.prose .btns{display:flex;gap:var(--s3);margin-top:var(--s6);flex-wrap:wrap}

/* SKILLS */
.skills{margin-top:var(--s5);display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--s3)}
.skill{display:flex;align-items:center;gap:var(--s3);padding:var(--s4);border:1px solid var(--border);border-radius:10px}
.skill .ck{width:26px;height:26px;border-radius:7px;border:1px solid rgba(255,255,255,.06);background:radial-gradient(circle at top right,rgba(255,255,255,.06),transparent 45%),#0a0a0a;box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
  color:var(--muted-foreground);display:grid;place-items:center;flex:none}
.skill .ck svg{width:14px;height:14px}
.skill span{font-weight:500;color:var(--foreground);font-size:.96rem}

/* WHAT YOU'LL LEARN — alternating media rows */
.learn-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(24px,5vw,52px);
  align-items:center;margin-top:clamp(36px,5vw,56px)}
.learn-row:first-of-type{margin-top:var(--s6)}
.learn-row.flip .learn-media{order:2}
.learn-media{position:relative;border-radius:var(--radius-lg);border:1px solid var(--border);overflow:hidden;
  aspect-ratio:4/3;background:radial-gradient(80% 100% at 50% 30%,#17171e,#0c0c10);display:grid;place-items:center;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05), 0 24px 50px -30px rgba(0,0,0,.8)}
.learn-media video,.learn-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.learn-copy .n{font-family:var(--disp);font-weight:600;color:var(--muted-foreground);font-size:.8rem;letter-spacing:.08em}
.learn-copy h3{margin-top:var(--s2);font-size:clamp(1.35rem,2.3vw,1.8rem)}
.learn-copy p{color:var(--body);margin-top:var(--s3);max-width:42ch}

/* REVIEWS */
.students{display:flex;align-items:center;gap:var(--s3);margin-top:var(--s5)}
.students .av{display:flex}
.students .av span{width:34px;height:34px;border-radius:50%;border:2px solid var(--background);margin-left:-10px;
  background:var(--card-2);border:2px solid var(--background)}
.students .av span:first-child{margin-left:0}
.students b{font-weight:600;color:var(--foreground)}
.review-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--s4);margin-top:var(--s6)}
.tcard .stars{display:flex;gap:3px;color:var(--foreground);margin-bottom:var(--s3)}
.tcard .stars svg{width:15px;height:15px}
.tcard .quote{color:var(--foreground);line-height:1.55;font-size:1rem}
.tcard .who{display:flex;align-items:center;gap:var(--s3);margin-top:var(--s5)}
.tcard .who .pf{width:38px;height:38px;border-radius:50%;background:var(--card-2);border:1px solid var(--border);flex:none}
.tcard .who .nm{font-weight:600;color:var(--foreground);font-size:.92rem}
.tcard .who .loc{color:var(--muted-foreground);font-size:.83rem}
.sample-note{color:var(--muted-foreground);font-size:.82rem;margin-top:var(--s5)}

/* FAQ */
.faq{margin-top:var(--s5);border-top:1px solid var(--border)}
.faq-item{border-bottom:1px solid var(--border)}
.faq-q{display:flex;align-items:center;gap:var(--s4);width:100%;background:none;border:0;cursor:pointer;
  font-family:var(--disp);font-size:1.08rem;font-weight:600;color:var(--foreground);text-align:left;
  padding:var(--s5) 0;letter-spacing:-.01em;transition:color .15s var(--ease)}
.faq-q:hover{color:#fff}
.faq-q .pm{width:20px;height:20px;flex:none;color:var(--muted-foreground);transition:transform .25s var(--ease);margin-left:auto}
.faq-item.open .faq-q .pm{transform:rotate(45deg)}
.faq-a{display:grid;grid-template-rows:minmax(0,0fr);overflow:hidden;transition:grid-template-rows .3s var(--ease);color:var(--body)}
.faq-item.open .faq-a{grid-template-rows:minmax(0,1fr)}
.faq-a > div{overflow:hidden;min-height:0}
.faq-a > div p,.faq-a > div{max-width:68ch}
.faq-a-inner{padding:0 0 var(--s5) 0}
.faq-foot{margin-top:var(--s6);color:var(--body)}
.faq-foot .btn{margin-top:var(--s4)}

/* FINAL CTA */
.final{text-align:center;padding:clamp(72px,11vw,130px) 0}
.final h2{max-width:20ch;margin:0 auto}
.final .btns{display:flex;gap:var(--s3);justify-content:center;margin-top:var(--s8);flex-wrap:wrap}

/* =========================================================================
   RESPONSIVE
   ========================================================================= */
@media (max-width:960px){
  .detail-grid{grid-template-columns:1fr}
  .buy-card{position:relative;top:0;max-width:440px}
  .teacher-grid{grid-template-columns:1fr}
  .badge-display{max-width:260px;aspect-ratio:4/3}
  .spec-bar{grid-template-columns:1fr}
  .spec + .spec{border-left:0;border-top:1px solid var(--border)}
  .skills{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .learn-row{grid-template-columns:1fr}
  .learn-row.flip .learn-media{order:0}
}
@media (max-width:820px){
  nav.links,.nav-cta{display:none}
  .nav-toggle{display:flex}
  header.nav.open .mobile-menu{display:flex}
  .row-title{font-size:.95rem}
}