/* =========================================================================
   Vidhya — site stylesheet
   One system: logo palette, a fixed type scale, a spacing scale,
   three radii, three shadows and one motion language.
   ========================================================================= */

/* ---------- Tokens ---------- */
:root{
  /* Colour: navy carries text and structure; magenta is for major calls to action; red pen is for marks only */
  --ink:#17303A;--navy:#214955;--text:#26343A;--muted:#5E6B6E;--line:#E2DCCF;--soft:#EFEAE1;--paper:#F7F4EE;--card:#FFFDF9;
  --dark:#163a45;--dark-2:#1d4652;--on-dark:#bfd3d8;
  --accent:#D1208A;--accent-dark:#B8167A;--pen:#E0312B;--pen-on-dark:#ff6b62;--teal:#1A9DA0;--teal-wash:rgba(26,157,160,.08);
  --brand-line:linear-gradient(90deg,#EECD32,#65C085,#26B4B6,#4397C5,#6E51A3,#A3248F,#D82290);

  /* Type */
  --font:Manrope,"Segoe UI",Arial,Helvetica,sans-serif;
  --serif:"Instrument Serif",Georgia,"Times New Roman",serif;
  --fs-label:11px;--fs-xs:12px;--fs-ui:13px;--fs-sm:14px;--fs-body:16px;--fs-lg:19px;--fs-xl:24px;--fs-h3:30px;
  --fs-h2:clamp(36px,4.4vw,62px);--fs-num:clamp(54px,5vw,66px);

  /* Space */
  --s1:4px;--s2:8px;--s3:16px;--s4:24px;--s5:32px;--s6:48px;--s7:72px;--s8:112px;
  --gutter:48px;--container:1280px;

  /* Shape and depth */
  --r-sm:8px;--r-md:14px;--r-pill:999px;
  --sh-sm:0 1px 2px rgba(22,58,69,.06),0 6px 16px -10px rgba(22,58,69,.25);
  --sh-md:0 1px 2px rgba(22,58,69,.05),0 24px 60px -36px rgba(22,58,69,.38);
  --sh-lg:0 40px 80px -30px rgba(22,58,69,.55);
  --glow:0 10px 28px -10px rgba(209,32,138,.55),0 0 0 4px rgba(209,32,138,.07);
  --glow-hover:0 14px 34px -10px rgba(209,32,138,.65),0 0 0 6px rgba(209,32,138,.1);

  /* Motion */
  --ease:cubic-bezier(.2,.7,.2,1);--fast:.15s;--mid:.3s;--slow:.6s;

  --pen-cursor:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='32' height='32' viewBox='0 0 32 32'%3E%3Cpath d='M22 3l7 7L12 27l-9 2 2-9z' fill='%23fff' stroke='%23214955' stroke-width='1.6' stroke-linejoin='round'/%3E%3Cpath d='M5 20l7 7' stroke='%23214955' stroke-width='1.6'/%3E%3Cpath d='M3 29l2-6 4 4z' fill='%23E0312B'/%3E%3C/svg%3E") 3 29,crosshair;
}
@media(max-width:1100px){:root{--gutter:32px}}
@media(max-width:620px){:root{--gutter:22px;--fs-lg:17px;--fs-xl:20px;--fs-h3:26px;--fs-h2:clamp(34px,9vw,42px)}}

/* ---------- Base ---------- */
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{margin:0;background:var(--paper);color:var(--text);font-family:var(--font);font-size:var(--fs-body);line-height:1.6;overflow-x:clip;-webkit-font-smoothing:antialiased}
h1,h2,h3{margin:0;color:var(--ink);font-weight:600;letter-spacing:-.035em;line-height:1.06}
h2{font-size:var(--fs-h2)}
h3{font-size:var(--fs-h3);line-height:1.15}
p{margin:0 0 var(--s4)}
em{font-family:var(--serif);font-weight:400;letter-spacing:-.01em}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;padding:0;cursor:pointer}
button,a{touch-action:manipulation;-webkit-tap-highlight-color:transparent}
:focus-visible{outline:3px solid var(--ink);outline-offset:3px;border-radius:4px}
[hidden]{display:none!important}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:fixed;top:-100px;left:var(--s3);z-index:100;background:#fff;padding:10px 14px;border:2px solid var(--ink);border-radius:var(--r-sm)}
.skip:focus{top:var(--s3)}
.wrap{max-width:var(--container);margin:0 auto;padding-left:var(--gutter);padding-right:var(--gutter)}
.muted{color:var(--muted)}
.micro{font-size:var(--fs-xs);color:var(--muted);line-height:1.6}
.status{min-height:20px;margin:var(--s3) 0 0;font-size:var(--fs-sm);color:var(--muted)}
.i{width:1.15em;height:1.15em;flex-shrink:0;vertical-align:-.2em}
html[data-role=teacher] .for-institute,html[data-role=institute] .for-teacher{display:none!important}

/* ---------- Header ---------- */
header{position:sticky;top:0;z-index:20;background:rgba(247,244,238,.9);-webkit-backdrop-filter:saturate(1.4) blur(12px);backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid transparent;transition:border-color var(--mid) var(--ease),box-shadow var(--mid) var(--ease)}
header.scrolled{border-color:var(--line);box-shadow:0 8px 24px -18px rgba(22,58,69,.35)}
.nav{height:84px;display:flex;align-items:center;justify-content:space-between;gap:var(--s4);transition:height var(--mid) var(--ease)}
header.scrolled .nav{height:66px}
.logo{display:inline-flex}
.logo img{height:38px;width:auto;transition:height var(--mid) var(--ease)}
header.scrolled .logo img{height:32px}
nav{display:flex;align-items:center;gap:28px;font-size:var(--fs-sm);font-weight:500}
nav>a:not(.button):hover,.tutor:hover{color:var(--ink);text-decoration:underline;text-underline-offset:6px}
nav [aria-current=page]{color:var(--ink);font-weight:700}
.tutor{display:inline-flex;align-items:center;gap:4px;padding:6px 0 6px 24px;border-left:1px solid var(--line)}
.menu-toggle{display:none;align-items:center;gap:10px;min-height:44px;font-size:var(--fs-sm);font-weight:600}
.menu-icon{display:inline-grid;transition:transform var(--mid) var(--ease)}
.menu-toggle[aria-expanded=true] .menu-icon{transform:rotate(45deg)}

/* ---------- Buttons and links ---------- */
.button{display:inline-flex;align-items:center;justify-content:space-between;gap:var(--s5);min-height:52px;padding:14px 22px;border:1px solid var(--ink);border-radius:var(--r-sm);background:var(--ink);color:#fff;font-size:var(--fs-sm);font-weight:700;letter-spacing:-.01em;cursor:pointer;transition:background-color var(--fast) var(--ease),border-color var(--fast) var(--ease),box-shadow var(--mid) var(--ease),transform var(--fast) var(--ease)}
.button:hover{background:var(--dark);border-color:var(--dark)}
.button:active{transform:translateY(1px)}
.button .i-wrap{display:inline-grid;transition:transform var(--fast) var(--ease)}
.button:hover .i-wrap{transform:translate(2px,-2px)}
.button.small{min-height:44px;padding:10px 16px;font-size:var(--fs-xs);gap:var(--s4)}
.button.outline{background:#fff;color:var(--ink);border-color:var(--ink)}
.button.outline:hover{background:var(--soft)}
.button.primary{background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:var(--glow)}
.button.primary:hover{background:var(--accent-dark);border-color:var(--accent-dark);box-shadow:var(--glow-hover)}
.actions{display:flex;align-items:center;gap:var(--s4);flex-wrap:wrap}
.text-link{display:inline-flex;align-items:center;gap:6px;padding:8px 0;font-size:var(--fs-sm);font-weight:700;color:var(--ink);cursor:pointer}
.text-link .i{transition:transform var(--fast) var(--ease)}
.text-link:hover{text-decoration:underline;text-underline-offset:6px}
.text-link:hover .i{transform:translateX(3px)}

/* ---------- Sections ---------- */
.section{padding-top:var(--s8);padding-bottom:var(--s8)}
.soft{background:var(--soft)}
.dark{background:var(--dark);color:#fff}
.dark h2,.dark h3{color:#fff}
.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:var(--s6);margin-bottom:var(--s6)}
.section-heading>p,.section-heading>div>p{max-width:420px;margin:0;font-size:var(--fs-body);color:var(--muted)}
.section-heading.stacked{display:block}
.section-heading.stacked h2{margin-bottom:14px}
.section-heading.stacked>p,.section-heading.stacked>div>p{max-width:640px;margin-top:14px}
.dark .section-heading p{color:var(--on-dark)}
.eyebrow{display:block;margin-bottom:var(--s4);font-size:var(--fs-label);font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}

/* Q1–Q5: sections numbered like questions, the number circled in red pen */
.q-label{display:flex;align-items:center;gap:14px}
.qn{position:relative;display:inline-grid;place-items:center;width:46px;height:34px;font-family:var(--serif);font-style:italic;font-weight:400;font-size:21px;letter-spacing:0;text-transform:none;color:var(--pen)}
.qn .pen{position:absolute;inset:0;width:100%;height:100%;stroke-width:2.2;animation-play-state:paused}
.in .qn .pen,.section-heading:not(.reveal) .qn .pen,.start-dark .qn .pen{animation-play-state:running}
.dark .q-label,.start-dark .q-label{color:var(--on-dark)}
.dark .qn,.start-dark .qn{color:var(--pen-on-dark)}
.dark .pen,.start-dark .pen{stroke:var(--pen-on-dark)}

/* ---------- Red-pen marks ---------- */
.pen{fill:none;stroke:var(--pen);stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:1;animation:pen-draw .55s ease-out forwards;vector-effect:non-scaling-stroke;overflow:visible}
@keyframes pen-draw{to{stroke-dashoffset:0}}
em.marked,.underlined{position:relative;white-space:nowrap}
em.marked .pen.underline{position:absolute;left:-2%;bottom:-.06em;width:104%;height:.26em;stroke-width:3;animation-play-state:paused;animation-delay:.35s}
.in em.marked .pen.underline,.section-heading:not(.reveal) em.marked .pen.underline{animation-play-state:running}

/* ---------- Hero: copy written on the ruled lines ---------- */
.hero{--rule:42px;position:relative;isolation:isolate;display:grid;grid-template-columns:1fr 1.05fr;gap:40px;align-items:start;padding-top:calc(var(--rule)*2);padding-bottom:96px;min-height:min(720px,calc(100vh - 84px))}
.hero:before{content:'';position:absolute;z-index:-1;top:0;bottom:0;left:calc(50% - 50vw);right:calc(50% - 50vw);background:repeating-linear-gradient(180deg,transparent 0 calc(var(--rule) - 1px),rgba(67,151,197,.16) calc(var(--rule) - 1px) var(--rule)),radial-gradient(60% 70% at 78% 45%,rgba(38,180,182,.10),transparent 70%),radial-gradient(40% 50% at 95% 90%,rgba(209,32,138,.06),transparent 70%),var(--paper)}
.hero:after{content:'';position:absolute;z-index:-1;top:0;bottom:0;left:calc(var(--gutter) - 26px);width:2px;background:rgba(224,49,43,.22)}
.hero-copy{min-width:0;padding-top:calc(var(--rule)*2)}
.hero h1,.hero-lede{position:relative;top:var(--sit)}
.hero h1{--lh:calc(var(--rule)*2);margin:0 0 var(--rule);font-size:clamp(64px,5.8vw,80px);line-height:var(--lh);font-weight:700;letter-spacing:-.05em;--sit:calc(var(--lh)/2 - .383em - 3px)}
.hero h1 em{color:var(--accent);font-weight:400;letter-spacing:-.02em;line-height:0}
.hero h1 .count{display:inline-block;line-height:var(--lh);text-align:right;font-variant-numeric:tabular-nums}
.pen.underline{position:absolute;left:-2%;bottom:-.08em;width:104%;height:.28em;stroke-width:3.4;animation-delay:1.05s;animation-duration:.7s}
.hero-lede{--lh:var(--rule);max-width:470px;margin:0 0 var(--rule);font-size:var(--fs-lg);line-height:var(--lh);color:var(--muted);--sit:calc(var(--lh)/2 - .383em - 2px)}
.hero .actions{height:calc(var(--rule)*2)}
.hero .button.primary{height:calc(var(--rule)*1.5);min-height:0;padding:0 28px;font-size:var(--fs-body);gap:40px}
.hero-stage{position:relative;height:560px}
.stage-sheet{position:absolute;height:auto;background:#fff;border-radius:4px;box-shadow:0 30px 60px -28px rgba(22,58,69,.45),0 2px 6px rgba(22,58,69,.08)}
.stage-sheet.s1{left:-2%;top:2%;width:44%;rotate:-7deg}
.stage-sheet.s2{right:0;top:-2%;width:66%;rotate:4deg}
.video-frame.stage-film{position:absolute;left:6%;right:4%;bottom:4%;border-radius:var(--r-sm);box-shadow:var(--sh-lg),0 0 0 8px #fff,0 0 0 9px var(--line)}
.video-frame{position:relative;aspect-ratio:16/9;overflow:hidden;background:#111;border-radius:var(--r-sm)}
.video-frame video{display:block;width:100%;height:100%;object-fit:cover}
.video-play{position:absolute;left:var(--s3);bottom:var(--s3);display:flex;align-items:center;gap:12px;padding:8px 18px 8px 8px;background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);box-shadow:var(--sh-sm);font-size:var(--fs-ui);font-weight:700;text-align:left;color:var(--ink);transition:transform var(--fast) var(--ease)}
.video-play:hover{transform:translateY(-1px)}
.video-play small{display:block;font-size:var(--fs-label);font-weight:500;color:var(--muted)}
.play-icon{display:inline-grid;place-items:center;flex-shrink:0;width:38px;height:38px;border-radius:50%;background:var(--ink);color:#fff}
.play-icon .i{width:15px;height:15px;margin-left:2px}

/* ---------- Subjects strip ---------- */
.ticker{display:flex;align-items:center;gap:28px;padding:0 0 0 max(var(--gutter),calc((100vw - var(--container))/2 + var(--gutter)));overflow:hidden;background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.ticker-label{flex-shrink:0;margin:0;font-size:var(--fs-label);font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.ticker-window{flex:1;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent)}
.ticker-track{display:flex;width:max-content;animation:ticker 38s linear infinite}
.ticker:hover .ticker-track{animation-play-state:paused}
.ticker-set{display:flex}
.ticker-set span{display:inline-flex;align-items:center;gap:10px;padding:24px 26px;font-size:var(--fs-xl);font-weight:600;letter-spacing:-.02em;white-space:nowrap;color:var(--ink)}
.ticker-set svg{width:20px;height:20px;fill:none;stroke:var(--pen);stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}
@keyframes ticker{to{transform:translateX(-50%)}}

/* ---------- Walkthrough ---------- */
.variety-tabs{display:flex;flex-wrap:wrap;gap:var(--s2);margin-bottom:var(--s4)}
.variety-tabs button,.start-switch button{min-height:42px;padding:9px 18px;border:1px solid var(--line);border-radius:var(--r-pill);background:#fff;font-size:var(--fs-ui);font-weight:600;transition:background-color var(--fast) var(--ease),border-color var(--fast) var(--ease),color var(--fast) var(--ease)}
.variety-tabs button:hover,.start-switch button:hover{border-color:var(--ink)}
.variety-tabs .active,.start-switch .active{background:var(--ink);border-color:var(--ink);color:#fff}
.example-frame{overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-md)}
.frame-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px var(--s4);border-bottom:1px solid var(--line);font-size:var(--fs-label);font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--ink)}
.frame-tools{display:flex;align-items:center;gap:18px;perspective:420px}
.step-nav{display:flex;align-items:center;gap:6px;letter-spacing:.04em}
.step-nav button{display:grid;place-items:center;width:34px;height:34px;border:1px solid var(--line);border-radius:50%;background:#fff;color:var(--ink);transition:border-color var(--fast) var(--ease),background-color var(--fast) var(--ease)}
.step-nav button:hover:not(:disabled){border-color:var(--ink)}
.step-nav button:disabled{opacity:.35;cursor:default}
.step-count{min-width:52px;text-align:center;font-weight:600}
.cube{width:30px;height:30px;transform-style:preserve-3d;transform:rotateX(-20deg) rotateY(28deg)}
.cube-inner{position:relative;width:100%;height:100%;transform-style:preserve-3d;transition:transform .75s var(--ease)}
.cube .face{position:absolute;inset:0;display:grid;place-items:center;background:#fff;border:1.5px solid var(--ink);font-size:9px;font-weight:700;letter-spacing:0;color:var(--ink)}
.cube .f1{transform:translateZ(15px)}.cube .f2{transform:rotateY(90deg) translateZ(15px)}.cube .f3{transform:rotateY(180deg) translateZ(15px)}
.cube .f4{transform:rotateY(270deg) translateZ(15px)}.cube .f5{transform:rotateX(90deg) translateZ(15px)}.cube .f6{transform:rotateX(-90deg) translateZ(15px)}
.example-tabs{display:grid;grid-template-columns:repeat(var(--n,6),1fr);border-bottom:1px solid var(--line)}
.example-tabs button{min-height:64px;padding:14px 18px;border-right:1px solid var(--line);border-bottom:2px solid transparent;text-align:left;font-size:var(--fs-label);color:var(--muted);transition:color var(--fast) var(--ease),background-color var(--fast) var(--ease)}
.example-tabs button:last-child{border-right:0}
.example-tabs button:hover{background:var(--soft);color:var(--ink)}
.example-tabs button span{display:block;margin-top:4px;font-size:var(--fs-ui);line-height:1.3}
.example-tabs button[aria-selected=true]{border-bottom-color:var(--ink);color:var(--ink);font-weight:700}
.example-panel{display:grid;grid-template-columns:1.1fr 1fr;gap:var(--s6);align-items:center;min-height:470px;padding:var(--s5)}
.example-image{position:relative;display:flex;align-items:center;justify-content:center;height:380px;overflow:hidden;background:var(--soft);border:1px solid var(--line);border-radius:var(--r-sm)}
.example-image img{width:100%;height:100%;object-fit:contain}
.zoom,.pen-toggle{position:absolute;right:12px;bottom:12px;display:inline-flex;align-items:center;gap:6px;padding:7px 12px;background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);font-size:var(--fs-xs);font-weight:600;color:var(--ink);box-shadow:var(--sh-sm);transition:border-color var(--fast) var(--ease)}
.zoom:hover,.pen-toggle:hover{border-color:var(--ink)}
.zoom .i{width:14px;height:14px}
.example-copy{padding:var(--s2) var(--s3) var(--s2) 0}
.example-copy .eyebrow{margin-bottom:var(--s3)}
.example-copy h3{margin-bottom:var(--s3)}
.example-copy p{max-width:380px;font-size:var(--fs-body);color:var(--muted)}
.line-item{padding:12px 0;border-top:1px solid var(--line);font-size:var(--fs-sm)}
.line-item>span{margin-right:14px;font-size:var(--fs-label);font-weight:700;color:var(--muted)}
.example-copy .text-link{margin-top:var(--s3)}

/* Step 1: scanner sweep */
.scan-shot .phone{position:relative;display:inline-block;height:100%}
.scan-shot .phone img{width:auto;height:100%}
.scan-line{position:absolute;left:6%;right:6%;top:16%;height:2px;background:var(--teal);box-shadow:0 0 14px 2px rgba(38,180,182,.7);animation:scan 2.4s ease-in-out infinite alternate}
@keyframes scan{to{top:66%}}

/* Step 3: grading run */
.run-demo{padding:22px}
.run{width:100%;max-width:520px;padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm)}
.run-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;font-size:var(--fs-sm);color:var(--ink)}
.run-status{padding:4px 10px;border-radius:var(--r-pill);background:var(--soft);font-size:var(--fs-label);color:var(--muted)}
.run-status:before{content:'';display:inline-block;width:7px;height:7px;margin-right:6px;border-radius:50%;background:var(--teal);vertical-align:1px}
.run-status.done{font-weight:700;color:var(--ink)}
.run-row{display:grid;grid-template-columns:26px 1fr auto;gap:12px;align-items:center;padding:11px 0;border-top:1px solid var(--line)}
.run-n{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--soft);font-size:var(--fs-label);font-weight:700;color:var(--muted);transition:background-color var(--mid) var(--ease),color var(--mid) var(--ease)}
.run-row.done .run-n{background:var(--ink);color:#fff}
.run-body b{display:block;margin-bottom:6px;font-size:var(--fs-ui);font-weight:600;color:var(--ink)}
.bar{display:block;height:6px;overflow:hidden;border-radius:var(--r-sm);background:#e3ecee}
.bar span{display:block;width:0;height:100%;border-radius:var(--r-sm);background:var(--teal)}
.run-count{min-width:64px;text-align:right;font-size:var(--fs-ui);font-weight:700;color:var(--ink)}
.run-count small{display:block;font-size:var(--fs-label);font-weight:500;color:var(--muted)}

/* Step 4: mark it yourself */
#panel-marking{align-items:start}
#panel-marking .example-image{position:sticky;top:110px;height:440px}
.mark-row{display:grid;grid-template-columns:1fr auto auto;gap:10px;align-items:center;padding:9px 6px;border-top:1px solid var(--line);border-radius:4px;font-size:var(--fs-ui);transition:background-color var(--mid) var(--ease)}
.mark-text small{display:block;font-size:var(--fs-label);color:var(--muted)}
.mark-choice{display:flex;gap:6px}
.mark-choice button{display:grid;place-items:center;width:34px;height:34px;border:1px solid #c9d6d9;border-radius:50%;background:#fff;font-size:var(--fs-sm);color:var(--ink);transition:background-color var(--fast) var(--ease),border-color var(--fast) var(--ease),color var(--fast) var(--ease)}
.mark-choice button:hover{border-color:var(--ink)}
.mark-choice button[aria-pressed=true]{background:var(--ink);border-color:var(--ink);color:#fff}
.mark-choice .i{width:16px;height:16px}
.vidhya-mark{position:relative;display:inline-flex;align-items:center;justify-content:flex-end;gap:3px;min-width:62px;font-size:var(--fs-xs);color:var(--pen)}
.vidhya-mark .pen{width:18px;height:18px}
.vidhya-mark .ring{position:absolute;left:4px;top:-8px;width:calc(100% + 4px);height:calc(100% + 16px)}
.mark-row.differs{background:#fff3f2;box-shadow:inset 3px 0 0 var(--pen)}
.task #task-compare{width:100%;justify-content:center;margin-top:14px}
.task .status{margin-top:12px;font-weight:700;color:var(--ink)}
.task-why{margin:6px 0 0;padding:6px 0 6px 12px;border-left:3px solid var(--pen);font-size:var(--fs-ui);color:var(--text)}

/* Step 5: decision and approval stamp */
.decision-card{position:relative;align-self:center;padding:0 28px 24px;background:var(--soft);border:1px solid var(--line);border-radius:var(--r-md);color:var(--text)}
.decision-card .frame-bar{margin:0 -28px var(--s4);padding:16px 28px}
.decision-card h3{margin-bottom:6px;font-size:var(--fs-xl)}
.decision-card p.muted{margin-bottom:var(--s4);font-size:var(--fs-ui)}
.decision-card .actions{gap:var(--s4);margin-top:var(--s3)}
.score-input{display:flex;max-width:174px;height:48px;margin-bottom:var(--s4);overflow:hidden;background:#fff;border:1px solid #c9d6d9;border-radius:var(--r-sm)}
.score-input input{width:66px;min-height:0;margin:0;padding:0;border:0;border-radius:0;text-align:center;font-size:var(--fs-xl);font-weight:600;appearance:textfield;-moz-appearance:textfield}
.score-input input:focus{box-shadow:none}
.score-input input::-webkit-inner-spin-button{appearance:none}
.score-input button{display:grid;place-items:center;width:54px;color:var(--ink);transition:background-color var(--fast) var(--ease)}
.score-input button:hover{background:var(--soft)}
.stamp{position:absolute;top:58px;right:22px;padding:6px 12px;border:3px solid var(--pen);border-radius:var(--r-sm);font-size:var(--fs-ui);font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--pen);opacity:0;transform:rotate(-12deg) scale(2.4);pointer-events:none;mix-blend-mode:multiply}
.decision-card.approved .stamp{animation:stamp .45s cubic-bezier(.2,1.4,.4,1) forwards}
@keyframes stamp{to{opacity:.9;transform:rotate(-12deg) scale(1)}}

/* Red-pen reveal sheets */
.pen-sheet{position:relative;overflow:hidden;background:#fff;cursor:var(--pen-cursor);touch-action:pan-y}
.pen-sheet img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain}
.pen-marks{opacity:0;transition:opacity .25s;-webkit-mask-image:radial-gradient(circle 95px at var(--x,50%) var(--y,50%),#000 58%,transparent 100%);mask-image:radial-gradient(circle 95px at var(--x,50%) var(--y,50%),#000 58%,transparent 100%)}
.pen-sheet.active .pen-marks{opacity:1}
.pen-sheet.all .pen-marks{opacity:1;-webkit-mask-image:none;mask-image:none}
.pen-hint{position:absolute;top:14px;left:50%;display:grid;place-items:center;width:40px;height:40px;background:#fff;border:1px solid var(--line);border-radius:50%;box-shadow:var(--sh-sm);transform:translateX(-50%);pointer-events:none;transition:opacity .35s;animation:nudge 1.8s ease-in-out infinite}
.pen-hint svg{width:22px;height:22px}
.pen-sheet.used .pen-hint{opacity:0}
@keyframes nudge{50%{transform:translateX(-50%) translate(4px,4px) rotate(-8deg)}}
.pen-toggle[aria-pressed=true]{background:var(--ink);border-color:var(--ink);color:#fff}
.sheet-label{position:absolute;left:12px;bottom:12px;padding:5px 11px;background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);font-size:var(--fs-label);font-weight:700;color:var(--ink)}

/* ---------- Real student work ---------- */
.variety-view{display:grid;grid-template-columns:1.7fr 1fr;overflow:hidden;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-md)}
.variety-stage{padding:18px;background:var(--soft)}
.variety-panel.pair{display:grid;grid-template-columns:1fr 1fr;gap:var(--s3)}
.pair .sheet{height:440px;border:1px solid var(--line);border-radius:var(--r-sm)}
.pair .pen-hint{top:8px;right:8px;left:auto;width:32px;height:32px;transform:none;animation:nudge-r 1.8s ease-in-out infinite}
@keyframes nudge-r{50%{transform:translate(3px,3px) rotate(-8deg)}}
.variety-panel>img{width:100%;height:420px;object-fit:contain}
.variety-caption{display:flex;flex-direction:column;justify-content:center;padding:var(--s6) var(--s5);background:#fff}
.variety-caption h3{margin-bottom:var(--s3)}
.variety-caption p{font-size:var(--fs-body);color:var(--muted)}

/* ---------- Watch it work (shown once the videos exist) ---------- */
.video-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.video-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;aspect-ratio:16/9;margin-bottom:var(--s4);background:var(--dark-2);border:1px dashed #4f7480;border-radius:var(--r-md);font-size:var(--fs-xs);color:var(--on-dark)}
.video-placeholder .play-icon{width:52px;height:52px;background:#fff;color:var(--ink)}
.video-card h3{margin-bottom:10px;font-size:var(--fs-xl)}
.video-card p{margin:0;font-size:var(--fs-sm);color:var(--on-dark)}

/* ---------- Pricing ---------- */
.plan-grid.three{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s4);margin-bottom:28px}
.price-card{display:flex;flex-direction:column;padding:var(--s5) 30px;background:var(--soft);border:1px solid var(--line);border-radius:var(--r-md);transition:transform var(--mid) var(--ease),box-shadow var(--mid) var(--ease)}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md)}
.price-card h2{margin-bottom:var(--s4);font-size:var(--fs-h3)}
.price-card .button{margin-top:auto}
.plan-price{margin-bottom:var(--s4);font-size:var(--fs-num);font-weight:600;line-height:1.05;letter-spacing:-.05em;color:var(--ink)}
.plan-price span,.enterprise-price span{display:block;margin-top:10px;font-family:var(--font);font-size:var(--fs-sm);font-weight:500;font-style:normal;letter-spacing:0;line-height:1.6;color:var(--muted)}
.enterprise{background:#fff}
.enterprise-price{margin-bottom:var(--s4);font-family:var(--serif);font-size:44px;font-style:italic;line-height:1.15;letter-spacing:-.02em;color:var(--ink)}
.plan-points{margin:0 0 26px;padding:0;list-style:none;font-size:var(--fs-sm)}
.plan-points li{display:flex;gap:10px;padding:9px 0;border-top:1px solid var(--line)}
.plan-points li:before{content:'';flex-shrink:0;width:16px;height:16px;margin-top:3px;background:var(--teal);-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M4.5 12.5l4.5 4.5L19.5 6.5' fill='none' stroke='%23000' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M4.5 12.5l4.5 4.5L19.5 6.5' fill='none' stroke='%23000' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat}
.price-card.featured{background:var(--dark);border:0;color:#fff;box-shadow:var(--sh-lg)}
.price-card.featured h2,.price-card.featured .plan-price{color:#fff}
.price-card.featured .eyebrow,.price-card.featured .plan-price span{color:var(--on-dark)}
.price-card.featured .plan-points li{border-color:rgba(255,255,255,.14);color:#e4eef0}
.price-card.featured .plan-points li:before{background:#5fd3d5}
.pricing-hero{padding-top:var(--s7);padding-bottom:var(--s6);text-align:center}
.pricing-hero h1{font-size:clamp(48px,6vw,80px);letter-spacing:-.05em}
.pricing-hero h1 em{color:var(--ink)}
.pricing-hero p{margin:var(--s4) 0 0;font-size:var(--fs-lg);color:var(--muted)}
.pricing-plans{padding-bottom:var(--s7)}
.estimate-section{display:grid;grid-template-columns:1fr 1fr;gap:var(--s7);align-items:center;padding-bottom:var(--s7)}
.estimate-section h2{margin-bottom:var(--s4)}
.estimate-section p{font-size:var(--fs-body);color:var(--muted)}
.estimate-card{padding:28px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-md)}
.estimate-card input{font-size:var(--fs-xl);font-weight:600}
.estimate-total{position:relative;display:flex;justify-content:space-between;align-items:center;gap:var(--s3);margin:var(--s4) 0 12px}
.estimate-total span{font-size:var(--fs-sm);font-weight:600}
.estimate-total small{display:block;font-size:var(--fs-label);font-weight:500;color:var(--muted)}
.estimate-total output{font-size:32px;font-weight:700;letter-spacing:-.04em;color:var(--ink)}
.total-ring{position:absolute;right:-16px;top:50%;height:64px;transform:translateY(-50%);pointer-events:none}
.total-ring .pen{width:100%;height:100%}
.estimate-card p.micro{margin-bottom:12px}
#estimate-note{margin-bottom:0;padding-top:14px;border-top:1px solid var(--line)}
.closing{padding:var(--s7) 0}
.closing>.wrap{display:flex;align-items:center;justify-content:space-between;gap:var(--s5)}
.closing h2{font-size:clamp(32px,3.4vw,44px)}

/* ---------- FAQ ---------- */
.faq-links{display:flex;flex-direction:column;align-items:flex-end;gap:4px;max-width:360px}
.faq-columns{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--s6);align-items:start}
.faq-columns.two{grid-template-columns:1fr 1fr}
.faq-group{margin:40px 0 var(--s1);font-size:var(--fs-label);font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.faq-group:first-child{margin-top:0}
.faqs details{border-bottom:1px solid var(--line)}
.faqs .faq-group+details{border-top:1px solid var(--line)}
.faqs summary{display:flex;justify-content:space-between;gap:var(--s4);padding:20px 0;list-style:none;cursor:pointer;font-size:var(--fs-body);font-weight:700;color:var(--ink)}
.faqs summary::-webkit-details-marker{display:none}
.faqs summary:hover{color:var(--accent-dark)}
.faq-icon{display:inline-grid;flex-shrink:0;transition:transform var(--mid) var(--ease)}
.faqs details[open] .faq-icon{transform:rotate(45deg)}
.faqs details p{padding-right:var(--s4);font-size:var(--fs-sm);color:var(--muted)}
.faqs details[open] p{animation:faq-in var(--mid) var(--ease)}
@keyframes faq-in{from{opacity:0;transform:translateY(-4px)}}

/* ---------- Start: dark ending ---------- */
.start-dark{position:relative;isolation:isolate;overflow:hidden;background:var(--dark);color:#fff}
.start-dark:before{content:'';position:absolute;inset:0;z-index:-1;background:repeating-linear-gradient(180deg,transparent 0 41px,rgba(255,255,255,.05) 41px 42px),radial-gradient(50% 60% at 85% 30%,rgba(209,32,138,.22),transparent 70%),radial-gradient(45% 55% at 10% 90%,rgba(38,180,182,.18),transparent 70%)}
.start-dark h2,.start-dark h2 em{color:#fff}
.demo-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--s7);align-items:center}
.demo-grid h2{margin-bottom:var(--s4);line-height:1.08}
.demo-grid>div>p{max-width:400px;font-size:var(--fs-body);color:var(--on-dark)}
.contact{display:flex;flex-direction:column;gap:var(--s2);font-size:var(--fs-sm);font-weight:700}
.contact a{display:inline-flex;align-items:center;gap:6px;width:fit-content;color:#fff}
.contact a:hover{text-decoration:underline;text-underline-offset:6px}
.socials{margin-top:28px}
.socials>span{display:block;margin-bottom:10px;font-size:var(--fs-label);font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--on-dark)}
.social-links{display:flex;flex-wrap:wrap;gap:10px}
.social-pill{display:inline-flex;align-items:center;gap:10px;padding:6px 16px 6px 6px;border-radius:var(--r-pill);background:#eff2f3;font-size:var(--fs-ui);font-weight:700;color:#33464c;transition:background-color .12s ease-out,color .12s ease-out,transform .12s ease-out,box-shadow .12s ease-out}
.pill-icon{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:#fff;color:var(--brand);box-shadow:0 1px 2px rgba(22,58,69,.12);transition:transform .12s ease-out}
.pill-icon svg{width:16px;height:16px}
.social-pill:hover,.social-pill:focus-visible{background:var(--brand);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px -10px var(--brand)}
.social-pill:hover .pill-icon{transform:scale(1.08) rotate(-6deg)}
.social-pill:active{transform:scale(.97)}
.start-dark .social-pill{background:rgba(255,255,255,.09);color:#fff}

/* Forms */
.demo-form{padding:var(--s5);background:#fff;border:1px solid var(--line);border-radius:var(--r-md);color:var(--text);box-shadow:0 40px 80px -30px rgba(0,0,0,.55)}
.demo-form h3{margin-bottom:var(--s3);font-size:var(--fs-h3)}
.start-switch{margin-bottom:22px}
label{display:block;margin-bottom:var(--s2);font-size:var(--fs-ui);font-weight:700;color:var(--ink)}
label span{float:right;font-size:var(--fs-label);font-weight:500;color:var(--muted)}
input,textarea,select{width:100%;max-width:100%;min-height:48px;margin-bottom:var(--s4);padding:12px 14px;background:#fff;border:1px solid #c9d6d9;border-radius:var(--r-sm);font-size:var(--fs-body);color:var(--text);transition:border-color var(--fast) var(--ease),box-shadow var(--fast) var(--ease)}
input:hover,textarea:hover,select:hover{border-color:#9fb3b8}
input:focus,textarea:focus,select:focus{outline:0;border-color:var(--ink);box-shadow:0 0 0 3px rgba(33,73,85,.14)}
textarea{min-height:0;resize:vertical}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--s3)}
.form-row.three-up{grid-template-columns:repeat(3,1fr);gap:12px}
.demo-form form>.button{width:100%}
.plan-choice{display:grid;gap:var(--s2);margin:0 0 20px;padding:0;border:0}
.plan-choice legend{margin-bottom:var(--s2);padding:0;font-size:var(--fs-ui);font-weight:700;color:var(--ink)}
.plan-choice label{display:flex;align-items:center;gap:12px;margin:0;padding:14px 16px;border:1px solid var(--line);border-radius:var(--r-sm);font-size:var(--fs-body);cursor:pointer;transition:border-color var(--fast) var(--ease),background-color var(--fast) var(--ease)}
.plan-choice label:hover{border-color:#9fb3b8}
.plan-choice label:has(input:checked){border-color:var(--ink);background:var(--soft)}
.plan-choice label span{float:none;margin-left:auto}
.plan-choice input{appearance:none;-webkit-appearance:none;flex-shrink:0;width:20px;height:20px;min-height:0;margin:0;padding:0;border:1.5px solid #9fb3b8;border-radius:50%;background:#fff;transition:border-color var(--fast) var(--ease),box-shadow var(--fast) var(--ease)}
.plan-choice input:checked{border-color:var(--ink);box-shadow:inset 0 0 0 5px var(--ink)}
.form-progress{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin:0 0 22px;padding:0;list-style:none;counter-reset:step;font-size:var(--fs-xs);color:var(--muted)}
.form-progress li{padding-top:8px;border-top:3px solid var(--line);counter-increment:step}
.form-progress li:before{content:counter(step) ' · '}
.form-progress li[aria-current],.form-progress li.done{border-color:var(--ink);color:var(--ink)}
.form-progress li[aria-current]{font-weight:700}
.form-step,.chip-group{min-width:0;margin:0;padding:0;border:0}
.chip-group{margin-bottom:18px}
.chip-group legend{width:100%;margin-bottom:9px;padding:0;font-size:var(--fs-ui);font-weight:700;color:var(--ink)}
.chip-group legend span{float:right;font-size:var(--fs-label);font-weight:500;color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:7px}
.chip{position:relative;margin:0;font-weight:500}
.chip input{position:absolute;opacity:0;width:1px;height:1px;min-height:0;margin:0;padding:0}
.chip span{display:inline-block;float:none;min-height:38px;padding:8px 14px;border:1px solid #c9d6d9;border-radius:var(--r-pill);font-size:var(--fs-ui);font-weight:600;line-height:20px;color:var(--ink);cursor:pointer;transition:background-color var(--fast) var(--ease),border-color var(--fast) var(--ease),color var(--fast) var(--ease)}
.chip span:hover{border-color:var(--ink)}
.chip input:checked+span{background:var(--ink);border-color:var(--ink);color:#fff}
.chip input:focus-visible+span{outline:3px solid var(--ink);outline-offset:2px}
.form-nav{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:6px}
.form-nav .button{margin-left:auto}

/* ---------- Legal and 404 ---------- */
.legal-page{max-width:760px;padding-top:90px;padding-bottom:120px}
.legal-page h1{margin-bottom:26px;font-size:clamp(40px,5vw,64px)}
.legal-lede{font-size:var(--fs-lg);line-height:1.6;color:var(--muted)}
.legal-page a{color:var(--ink);text-decoration:underline;text-underline-offset:4px}
.not-found{position:relative;padding-top:var(--s8);padding-bottom:var(--s8);max-width:820px}
.not-found .code{position:relative;display:inline-block;margin-bottom:var(--s4);font-family:var(--serif);font-style:italic;font-size:clamp(90px,14vw,160px);line-height:1;color:var(--pen)}
.not-found .code .pen{position:absolute;left:-6%;top:6%;width:112%;height:90%;stroke-width:3}
.not-found h1{margin-bottom:var(--s4);font-size:clamp(40px,5vw,64px)}
.not-found p{max-width:520px;font-size:var(--fs-lg);color:var(--muted)}

/* ---------- Footer ---------- */
footer{position:relative}
footer:before{content:'';display:block;height:3px;background:var(--brand-line)}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1.3fr;gap:var(--s5);padding-top:50px;padding-bottom:var(--s6)}
.footer-brand p{margin-top:12px;font-size:var(--fs-sm);color:var(--muted)}
.footer-top>div:not(.footer-brand){display:flex;flex-direction:column;gap:10px;font-size:var(--fs-ui)}
.footer-top>div>a,.footer-top button{display:inline-flex;align-items:center;gap:5px;width:fit-content;font-size:var(--fs-ui);text-align:left}
.footer-top a:hover,.footer-top button:hover{color:var(--ink);text-decoration:underline;text-underline-offset:5px}
.footer-top .social-links{gap:var(--s2);margin-top:10px}
.footer-top .social-pill{padding:4px 13px 4px 4px;font-size:var(--fs-xs)}
.footer-top .social-pill:hover{text-decoration:none}
.footer-top .pill-icon{width:26px;height:26px}
.footer-top .pill-icon svg{width:14px;height:14px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:22px;padding-bottom:22px;border-top:1px solid var(--line);font-size:var(--fs-label);color:var(--muted)}
.footer-bottom>a{display:inline-flex;align-items:center;gap:4px}
nav.legal{position:static;display:flex;flex-direction:row;flex-wrap:wrap;align-items:center;gap:8px 18px;padding:0;margin:0;background:none;border:0;font-size:var(--fs-label);font-weight:500}
nav.legal a{padding:0;border:0;font-size:var(--fs-label);color:var(--muted)}
nav.legal a:hover{color:var(--ink)}

/* ---------- Dialogs ---------- */
dialog{max-width:min(540px,calc(100vw - 32px));padding:44px;border:1px solid var(--line);border-radius:var(--r-md);color:var(--text);box-shadow:var(--sh-lg)}
dialog::backdrop{background:rgba(14,30,36,.6);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}
dialog h2{margin-bottom:var(--s4);font-size:36px}
dialog p{font-size:var(--fs-sm);color:var(--muted)}
.close{position:absolute;top:12px;right:12px;display:grid;place-items:center;width:36px;height:36px;border-radius:50%;color:var(--ink);transition:background-color var(--fast) var(--ease)}
.close:hover{background:var(--soft)}
#image-dialog{width:fit-content;max-width:min(1150px,calc(100vw - 28px));padding:48px 18px 15px}
#image-dialog img{width:auto;max-width:100%;max-height:77vh;margin:auto;object-fit:contain}
#image-dialog p{margin:12px 0 0;font-size:var(--fs-xs);text-align:center}

/* ---------- Mobile action bar ---------- */
.action-bar{display:none}

/* ---------- Scroll reveal ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
.price-card.reveal.in:hover{transform:translateY(-4px)}

/* =========================================================================
   Responsive
   ========================================================================= */
@media(min-width:1450px){.hero{gap:72px}}

@media(max-width:1100px){
  .hero{--rule:36px}
  .hero h1{font-size:clamp(56px,6.2vw,64px)}
  .example-panel{gap:28px;padding:var(--s4)}
  .demo-grid,.estimate-section{gap:var(--s6)}
}
@media(max-width:1100px) and (min-width:901px){
  .hero{grid-template-columns:1fr 1fr;gap:var(--s5);padding-bottom:72px;min-height:0}
  .hero-stage{height:440px}
  .stage-sheet.s1{width:48%}.stage-sheet.s2{width:66%}
  .video-frame.stage-film{left:0;right:0}
}

@media(max-width:900px){
  .hero{grid-template-columns:1fr;gap:36px;padding-bottom:calc(var(--rule)*2);min-height:0}
  .hero:after{display:none}
  .hero-copy{padding-top:0}
  .hero h1{font-size:clamp(52px,8.6vw,66px)}
  .hero-lede{max-width:560px}
  .hero-stage{width:100%;max-width:640px;height:auto;aspect-ratio:16/11}
  .stage-sheet{box-shadow:0 18px 36px -20px rgba(22,58,69,.45),0 1px 4px rgba(22,58,69,.08)}
  .stage-sheet.s1{left:2%;top:0;width:42%;rotate:-4deg}
  .stage-sheet.s2{left:auto;right:2%;top:-1%;width:50%;rotate:3deg}
  .video-frame.stage-film{left:0;right:0;bottom:0;box-shadow:0 26px 54px -26px rgba(22,58,69,.55),0 0 0 6px #fff,0 0 0 7px var(--line)}
  .ticker{flex-direction:column;align-items:flex-start;gap:0;padding:18px 0 0 var(--gutter)}
  .ticker-window{width:100%}
  .ticker-set span{padding:16px 20px;font-size:var(--fs-lg)}
  .plan-grid.three{grid-template-columns:1fr}
  .example-tabs{grid-template-columns:repeat(min(var(--n,6),3),1fr)}
  .example-tabs button:nth-child(3n){border-right:0}
  .example-tabs button:nth-child(n+4){border-top:1px solid var(--line)}
  .video-grid{grid-template-columns:1fr;gap:40px}
  .demo-grid,.estimate-section{grid-template-columns:1fr}
  .faq-columns{grid-template-columns:1fr 1fr;gap:36px}
  .faq-columns .faqs:last-child{grid-column:1/-1}
}

@media(max-width:850px){
  .menu-toggle{display:flex}
  nav#navigation{position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:0;padding:var(--s3) var(--gutter) var(--s4);background:var(--paper);border-bottom:1px solid var(--line);box-shadow:0 20px 30px -24px rgba(22,58,69,.4)}
  nav#navigation.open{display:flex}
  nav#navigation>a,nav#navigation>.tutor{padding:13px 0;border:0;font-size:var(--fs-body);text-align:left}
  nav#navigation .button{justify-content:space-between;margin-top:10px;padding:14px 20px}
  .action-bar{position:fixed;left:0;right:0;bottom:0;z-index:30;display:flex;gap:var(--s2);padding:10px 16px calc(10px + env(safe-area-inset-bottom,0px));background:rgba(247,244,238,.96);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-top:1px solid var(--line);transition:transform .25s var(--ease)}
  .action-bar .button{flex:1;justify-content:center;gap:10px}
  .action-bar.away{transform:translateY(110%)}
  body{padding-bottom:72px}
  .example-panel{grid-template-columns:1fr}
  .variety-view{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
}

@media(max-width:620px){
  html{scroll-padding-top:80px}
  .nav{height:68px}
  header.scrolled .nav{height:60px}
  .logo img{height:30px}
  header.scrolled .logo img{height:28px}
  .section{padding-top:72px;padding-bottom:72px}
  .section-heading{display:block;margin-bottom:var(--s5)}
  .section-heading>p,.section-heading>div>p{margin-top:var(--s3)}
  .q-label{gap:10px}

  .hero{--rule:28px;gap:var(--rule);padding-bottom:48px}
  .hero h1{font-size:clamp(40px,12vw,48px)}
  .hero-lede{font-size:var(--fs-lg)}
  .hero .button.primary{width:100%;height:calc(var(--rule)*1.75);padding:0 22px}
  .hero-stage{aspect-ratio:16/11.6}
  .video-frame.stage-film{box-shadow:0 20px 40px -22px rgba(22,58,69,.55),0 0 0 4px #fff,0 0 0 5px var(--line)}
  .video-play{left:8px;bottom:8px;padding:6px 14px 6px 6px;font-size:var(--fs-label)}
  .video-play .play-icon{width:30px;height:30px}
  .ticker{padding-left:var(--gutter)}
  .ticker-set span{padding:14px 16px;font-size:var(--fs-lg)}

  .frame-bar{flex-wrap:wrap;padding:12px 14px}
  .frame-tools{gap:10px}
  .cube{width:26px;height:26px}
  .cube .f1{transform:translateZ(13px)}.cube .f2{transform:rotateY(90deg) translateZ(13px)}.cube .f3{transform:rotateY(180deg) translateZ(13px)}.cube .f4{transform:rotateY(270deg) translateZ(13px)}.cube .f5{transform:rotateX(90deg) translateZ(13px)}.cube .f6{transform:rotateX(-90deg) translateZ(13px)}
  .example-tabs button{min-height:58px;padding:12px 10px;font-size:var(--fs-label)}
  .example-tabs button span{font-size:var(--fs-label)}
  .example-panel{gap:17px;padding:14px}
  .example-image{height:290px}
  #panel-marking .example-image{position:relative;top:0;height:300px}
  .example-copy{padding:14px 8px}
  .mark-row{grid-template-columns:1fr auto;gap:6px}
  .vidhya-mark{grid-column:1/-1;justify-content:flex-start;min-width:0}
  .run-demo{padding:12px}
  .run{padding:12px 14px}
  .decision-card{padding:0 20px 20px}
  .decision-card .frame-bar{margin:0 -20px var(--s4);padding:14px 20px}

  .variety-stage{padding:10px}
  .variety-panel.pair{gap:var(--s2)}
  .pair .sheet{height:300px}
  .pair .sheet-label{top:8px;bottom:auto;left:8px;padding:3px 9px;font-size:var(--fs-label)}
  .pair .pen-hint{display:none}
  .pair .pen-toggle{left:8px;right:8px;bottom:8px;justify-content:center}
  .variety-panel>img{height:260px}
  .variety-caption{padding:var(--s5) var(--s4)}

  .price-card{padding:28px 24px}
  .price-card .button{width:100%}
  .enterprise-price{font-size:38px}
  .pricing-hero{padding-top:52px;padding-bottom:36px;text-align:left}
  .estimate-card{padding:22px}
  .estimate-total output{font-size:var(--fs-h3)}
  .closing>.wrap{display:block}
  .closing h2{margin-bottom:28px}

  .faq-links{align-items:flex-start;margin-top:var(--s3)}
  .faq-columns,.faq-columns.two{grid-template-columns:1fr;gap:34px}
  .faqs summary{padding:18px 0;font-size:var(--fs-sm)}

  .demo-form{padding:24px 20px}
  .form-row{grid-template-columns:1fr;gap:0}
  .form-row.three-up{grid-template-columns:repeat(3,1fr);gap:var(--s2)}
  .form-row.three-up label{font-size:var(--fs-label)}

  .footer-top{gap:30px 20px;padding-bottom:30px}
  .footer-bottom{flex-wrap:wrap;gap:12px 20px}
  .footer-bottom nav.legal{order:3;width:100%}
  dialog{padding:40px 24px 28px}
  #image-dialog{padding:48px 8px 14px}
  .legal-page{padding-top:56px;padding-bottom:80px}
}

/* ---------- Reduced motion ---------- */
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*:before,*:after{transition-duration:0s!important;animation-duration:0s!important;animation-delay:0s!important;animation-iteration-count:1!important}
  .pen,.qn .pen,em.marked .pen.underline{animation:none;stroke-dashoffset:0}
  .ticker-track,.scan-line,.pen-hint{animation:none}
  .scan-line{display:none}
  .reveal{opacity:1;transform:none}
  .decision-card.approved .stamp{opacity:.9;transform:rotate(-12deg)}
}


/* =========================================================================
   Home: the journey
   Problem → recognition → demonstration → control → outcome → proof → decision
   ========================================================================= */

/* Shared: hero facts on the ruled lines, sentence-case labels */
.hero-facts{position:relative;top:var(--sit);margin:0;padding:0;list-style:none;--lh:var(--rule);--sit:calc(var(--lh)/2 - .383em - 2px);font-size:var(--fs-sm);color:var(--text)}
.hero-facts li{line-height:var(--lh)}
.hero-facts .tick{width:16px;height:16px;margin-right:10px;vertical-align:-3px;fill:none;stroke:var(--pen);stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}
.hero .actions .text-link{height:100%}
.faq-group,.ticker-label{text-transform:none;letter-spacing:0;font-size:var(--fs-sm);color:var(--ink)}
.faq-group{font-weight:700}
.display{font-size:clamp(44px,5.4vw,80px);line-height:1.02;letter-spacing:-.045em}

/* ---------- ① + ② The story ----------
   Base styles are the calm, stacked version (phones, reduced motion, no script).
   .is-live turns it into the pinned transformation on wide screens. */
.story{position:relative;padding-top:var(--s8);padding-bottom:var(--s7)}
.story-grid{display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:start}
.story-caps{margin:0;padding:0;list-style:none}
.story-cap{margin-bottom:var(--s5)}
.story-cap.is-intro h3{margin-bottom:var(--s3);font-size:clamp(40px,4.6vw,68px);line-height:1.04;letter-spacing:-.045em}
.story-cap h3{margin:10px 0 12px;font-size:clamp(28px,2.8vw,40px);letter-spacing:-.035em}
.story-cap p{max-width:420px;margin:0;font-size:var(--fs-lg);color:var(--muted)}
.story-n{font-size:var(--fs-sm);font-weight:700;color:var(--teal)}
.story-progress{display:none}
.story-stage{position:relative}
.pile{display:none}
.page{position:relative;aspect-ratio:1400/1016;overflow:hidden;background:#fff;border-radius:3px;box-shadow:var(--sh-lg)}
.page img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.scan-beam,.corner,.pen-tip{display:none}
.detect{position:absolute;border:2px solid var(--teal);background:var(--teal-wash);border-radius:4px}
.detect em{position:absolute;left:-2px;top:-26px;padding:3px 9px;background:var(--teal);border-radius:4px 4px 4px 0;font-family:var(--font);font-style:normal;font-size:var(--fs-xs);font-weight:700;letter-spacing:0;color:#fff;white-space:nowrap}
.detect.d1{left:8.5%;top:18%;width:81%;height:40%}
.detect.d2{left:8%;top:59%;width:80%;height:37%}
.detect.d3{left:31%;top:95.5%;width:34%;height:4%}
.detect.d3 em{top:auto;bottom:calc(100% + 4px);border-radius:4px}
.scheme{margin-top:var(--s5);padding:22px 24px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-md)}
.scheme-head{display:flex;align-items:baseline;justify-content:space-between;gap:var(--s3);padding-bottom:12px;font-size:var(--fs-sm);font-weight:700;color:var(--ink)}
.scheme-total{font-family:var(--serif);font-style:italic;font-weight:400;font-size:30px;color:var(--pen)}
.scheme-total small{font-size:18px;color:var(--muted)}
.scheme-rows{margin:0;padding:0;list-style:none}
.scheme-row{display:grid;grid-template-columns:1fr auto;gap:4px 16px;align-items:baseline;padding:10px 0;border-top:1px solid var(--line);font-size:var(--fs-sm)}
.scheme-label{display:block;color:var(--text)}
.scheme-mark{font-weight:700;font-variant-numeric:tabular-nums;color:var(--ink)}
.scheme-row.lost .scheme-mark{color:var(--pen)}
.scheme-why{grid-column:1/-1;font-size:var(--fs-xs);color:var(--pen)}

/* Live: pinned, one caption at a time, the paper transforms */
.story.is-live{padding:0}
.story.is-live .story-pin{display:flex;align-items:center;min-height:100vh;padding:96px 0 48px}
.story.is-live .story-grid{align-items:center;width:100%}
.story.is-live .story-caps{position:relative;min-height:300px}
.story.is-live .story-cap{position:absolute;left:0;top:0;margin:0;opacity:0;transform:translateY(14px);transition:opacity var(--mid) var(--ease),transform var(--mid) var(--ease);pointer-events:none}
.story.is-live .story-cap.on{opacity:1;transform:none;pointer-events:auto}
.story.is-live .story-progress{display:flex;gap:10px;margin-top:var(--s5)}
.story-tick{display:grid;place-items:center;width:30px;height:30px;border:1.5px solid var(--line);border-radius:50%;transition:border-color var(--mid) var(--ease)}
.story-tick svg{width:16px;height:16px;fill:none;stroke:var(--pen);stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:1;transition:stroke-dashoffset .45s var(--ease)}
.story-tick.done{border-color:var(--pen)}
.story-tick.done svg{stroke-dashoffset:0}
.story.is-live .story-stage{aspect-ratio:1400/1016}
.story.is-live .pile{position:absolute;inset:0;display:block}
.pile-sheet{position:absolute;left:30%;top:4%;width:40%;height:auto;background:#fff;border-radius:2px;box-shadow:0 22px 40px -22px rgba(23,48,58,.55),0 1px 3px rgba(23,48,58,.12)}
.story.is-live .page{position:absolute;inset:0;transform-origin:0 0;will-change:transform}
.story.is-live .page-marks{-webkit-mask-image:radial-gradient(ellipse var(--r1,0%) calc(var(--r1,0%)*1.378) at 50% 75%,#000 90%,transparent 100%),radial-gradient(ellipse var(--r2,0%) calc(var(--r2,0%)*1.378) at 90% 53%,#000 90%,transparent 100%);mask-image:radial-gradient(ellipse var(--r1,0%) calc(var(--r1,0%)*1.378) at 50% 75%,#000 90%,transparent 100%),radial-gradient(ellipse var(--r2,0%) calc(var(--r2,0%)*1.378) at 90% 53%,#000 90%,transparent 100%)}
.story.is-live .scan-beam{position:absolute;left:0;right:0;top:0;display:block;height:3px;background:var(--teal);box-shadow:0 0 22px 6px rgba(26,157,160,.35)}
.story.is-live .corner{position:absolute;display:block;width:34px;height:34px;border:3px solid var(--teal)}
.corner.c1{left:10px;top:10px;border-right:0;border-bottom:0}.corner.c2{right:10px;top:10px;border-left:0;border-bottom:0}
.corner.c3{left:10px;bottom:10px;border-right:0;border-top:0}.corner.c4{right:10px;bottom:10px;border-left:0;border-top:0}
.story.is-live .pen-tip{position:absolute;left:30%;top:20%;display:block;width:46px;height:46px;transform:translate(-9%,-91%);filter:drop-shadow(0 6px 10px rgba(23,48,58,.3))}
.story.is-live .scheme{position:absolute;right:-3%;top:6%;width:56%;margin:0}

/* ---------- ③ Control ---------- */
.control-grid{display:grid;grid-template-columns:5fr 6fr;gap:80px;align-items:center}
.control-copy h2{margin-bottom:var(--s4);font-size:clamp(44px,5.4vw,80px);line-height:1.02;letter-spacing:-.045em}
.control-copy p{max-width:380px;font-size:var(--fs-lg);color:var(--muted)}
.control-sheet{position:relative;padding:36px 40px 32px 56px;background:repeating-linear-gradient(180deg,transparent 0 35px,rgba(67,151,197,.12) 35px 36px),var(--card);border-radius:3px;box-shadow:var(--sh-lg)}
.control-sheet:before{content:'';position:absolute;top:0;bottom:0;left:34px;width:2px;background:rgba(224,49,43,.25)}
.control-head{display:flex;justify-content:space-between;gap:var(--s3);font-size:var(--fs-sm);font-weight:600;color:var(--muted)}
.control-total b{font-family:var(--serif);font-style:italic;font-weight:400;font-size:24px;color:var(--pen)}
.control-step{margin:22px 0 10px;font-size:var(--fs-xl);font-weight:600;line-height:1.3;color:var(--ink)}
.control-reason{display:flex;gap:10px;margin:0;font-size:var(--fs-sm);color:var(--muted)}
.control-reason .dot{flex-shrink:0;width:8px;height:8px;margin-top:8px;border-radius:50%;background:var(--teal)}
.control-score{display:flex;align-items:baseline;gap:10px;margin:22px 0 18px}
.score-num{display:inline-block;font-family:var(--serif);font-style:italic;font-size:104px;line-height:.9;color:var(--pen);transform-origin:50% 70%}
.score-num.bump{animation:spring .55s cubic-bezier(.3,1.7,.5,1)}
@keyframes spring{from{transform:scale(.55) rotate(-8deg)}to{transform:none}}
.score-of{font-size:28px;color:var(--muted)}
.control-choice{display:flex;flex-wrap:wrap;gap:var(--s2);margin-bottom:var(--s3)}
.choice{min-height:42px;padding:9px 18px;border:1px solid #CFC7B8;border-radius:var(--r-pill);background:var(--card);font-size:var(--fs-ui);font-weight:600;color:var(--ink);transition:background-color var(--fast) var(--ease),border-color var(--fast) var(--ease),color var(--fast) var(--ease)}
.choice:hover{border-color:var(--ink)}
.choice[aria-pressed=true]{background:var(--ink);border-color:var(--ink);color:#fff}
.control-sheet .approve{width:100%;justify-content:center;gap:10px}
.control-sheet .stamp{top:24px;right:28px}
.control-sheet.approved .stamp{animation:stamp .45s cubic-bezier(.2,1.4,.4,1) forwards}
.control-status{min-height:22px;margin-top:12px}
.control-cta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--s4);margin-top:var(--s7);padding-top:var(--s5);border-top:1px solid var(--line)}
.control-cta p{margin:0;font-size:var(--fs-xl);font-weight:600;color:var(--ink)}
.control-cta.lit .button.primary{animation:nudge-cta 1.2s var(--ease) 1}
@keyframes nudge-cta{30%{transform:translateY(-3px);box-shadow:var(--glow-hover)}}

/* ---------- ④ Outcome ---------- */
.outcome-grid{display:grid;grid-template-columns:4fr 7fr;gap:72px;align-items:center}
.outcome-copy h2{font-size:clamp(44px,5.4vw,80px);line-height:1.02;letter-spacing:-.045em}
.outcome-list{display:grid;gap:22px;margin:var(--s6) 0 0;padding:0;list-style:none}
.outcome-list li{display:flex;gap:14px;font-size:var(--fs-lg);line-height:1.45;color:var(--text)}
.outcome-list b{color:var(--ink)}
.state{flex-shrink:0;width:12px;height:12px;margin-top:8px;border:2px solid #CFC7B8;border-radius:50%;transition:background-color var(--mid) var(--ease),border-color var(--mid) var(--ease)}
.outcome-list li.on .state{background:var(--teal);border-color:var(--teal)}
.outcome-stage{position:relative;height:540px}
.o-portal{position:absolute;left:0;top:0;width:84%;margin:0;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--sh-md)}
.o-bar{display:flex;align-items:center;gap:6px;padding:10px 14px;border-bottom:1px solid var(--line);font-size:var(--fs-xs);color:var(--muted)}
.o-bar i{width:9px;height:9px;border-radius:50%;background:#E2DCCF}
.o-bar span{margin-left:8px}
.o-portal img{width:100%;height:auto}
.o-email,.o-doubt{position:absolute;padding:20px 22px;background:var(--card);border:1px solid var(--line);border-radius:10px;box-shadow:var(--sh-lg);font-size:var(--fs-sm);color:var(--text)}
.o-email{right:0;top:40%;width:44%}
.o-doubt{left:6%;bottom:0;width:50%;border-left:3px solid var(--pen)}
.o-email p,.o-doubt p{margin:0 0 8px}
.o-from{font-size:var(--fs-xs);color:var(--muted)}
.o-title{font-size:var(--fs-xl);font-weight:700;color:var(--ink)}
.o-btn{display:inline-block;margin-top:6px;padding:8px 14px;border-radius:var(--r-sm);background:var(--ink);font-size:var(--fs-ui);font-weight:700;color:#fff}
.o-sent{display:inline-flex;align-items:center;gap:6px;font-size:var(--fs-xs);font-weight:700;color:var(--teal)}
.o-sent:before{content:'';width:7px;height:7px;border-radius:50%;background:var(--teal)}
.js-motion .outcome [data-o]:not(li){opacity:0;transform:translateY(28px) scale(.98);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.js-motion .outcome .on[data-o]:not(li){opacity:1;transform:none}
.js-motion .outcome-list li{opacity:.4;transition:opacity .5s var(--ease)}
.js-motion .outcome-list li.on{opacity:1}

/* ---------- ⑤ Proof ---------- */
.proof-quote{max-width:1000px;font-size:clamp(40px,5vw,76px);line-height:1.04;letter-spacing:-.045em}
.proof-sub{max-width:560px;margin:var(--s4) 0 var(--s7);font-size:var(--fs-lg);color:var(--muted)}
.proof-pair{display:grid;grid-template-columns:1fr 1fr;gap:56px;max-width:940px;margin:0 auto}
.proof-sheet{position:relative;margin:0;aspect-ratio:720/960;background:#fff;border-radius:3px;box-shadow:var(--sh-lg)}
.proof-sheet:first-child{rotate:-1.5deg}
.proof-sheet:last-child{rotate:1.5deg;margin-top:40px}
.proof-sheet figcaption{position:absolute;left:0;top:calc(100% + 14px);font-size:var(--fs-sm);font-weight:700;color:var(--ink)}
.proof-sheet .pen-hint{top:14px}
.proof-note{margin:var(--s7) auto 0;text-align:center;font-size:var(--fs-lg);color:var(--muted)}

/* ---------- ⑥ Decision ---------- */
.decide-grid{display:grid;grid-template-columns:7fr 5fr;border-top:2px solid var(--ink)}
.decide-plan{padding:var(--s6) 64px 0 0;border-right:1px solid var(--line)}
.decide-school{align-self:end;padding:var(--s6) 0 0 64px}
.decide h2{font-size:clamp(44px,5.4vw,80px);line-height:1.02;letter-spacing:-.045em}
.price-line{display:flex;align-items:baseline;gap:14px;margin:var(--s5) 0 var(--s3)}
.price-big{font-size:clamp(96px,12vw,176px);font-weight:700;line-height:.9;letter-spacing:-.06em;color:var(--ink)}
.price-tax{font-size:var(--fs-xl);color:var(--muted)}
.price-facts{display:flex;flex-wrap:wrap;gap:10px 28px;margin:0 0 var(--s5);padding:0;list-style:none;font-size:var(--fs-lg);color:var(--text)}
.price-facts li{display:flex;align-items:center;gap:10px}
.price-facts li:before{content:'';width:16px;height:16px;background:var(--pen);-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M3 13.5l5.5 5.5L21.5 4' fill='none' stroke='%23000' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M3 13.5l5.5 5.5L21.5 4' fill='none' stroke='%23000' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat}
.decide-school h3{margin-bottom:var(--s3);font-size:var(--fs-h3)}
.decide-school p{font-size:var(--fs-lg);color:var(--muted)}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .story-grid,.control-grid,.outcome-grid,.decide-grid{grid-template-columns:1fr;gap:var(--s6)}
  .outcome-stage{height:auto;display:grid;gap:var(--s3)}
  .o-portal,.o-email,.o-doubt{position:relative;left:auto;right:auto;top:auto;bottom:auto;width:100%}
  .decide-plan{padding-right:0;border-right:0}
  .decide-school{padding:var(--s5) 0 0;border-top:1px solid var(--line)}
}
@media(max-width:620px){
  .story{padding-top:72px}
  .control-sheet{padding:28px 22px 24px 40px}
  .control-sheet:before{left:24px}
  .score-num{font-size:84px}
  .proof-pair{gap:var(--s3)}
  .proof-sheet:last-child{margin-top:24px}
  .proof-sub{margin-bottom:var(--s6)}
  .price-facts{display:grid;gap:10px}
  .control-cta p{font-size:var(--fs-lg)}
}
@media(prefers-reduced-motion:reduce){.score-num.bump,.control-cta.lit .button.primary{animation:none}}
/* Buttons that read as buttons: outlined secondary with a visible fill on hover; hero pair sized together */
.button.outline{background:var(--card);border:1.5px solid var(--ink);color:var(--ink)}
.button.outline:hover{background:var(--ink);color:#fff}
.hero .actions .button{height:calc(var(--rule)*1.5);min-height:0;padding:0 24px;font-size:var(--fs-sm);gap:var(--s4)}
.hero .actions .button.primary{font-size:var(--fs-body);padding:0 28px}
.choice{border-width:1.5px}
@media(max-width:620px){.hero .actions .button{width:100%;height:calc(var(--rule)*1.75)}.hero .actions{height:auto}}
.button.outline{box-shadow:0 1px 0 rgba(23,48,58,.08),0 6px 16px -10px rgba(23,48,58,.35)}
/* Hero buttons may wrap; each row of buttons still occupies exactly two ruled lines, so nothing collides */
.hero .actions{height:auto;padding:calc(var(--rule)*.25) 0;row-gap:calc(var(--rule)*.5);column-gap:12px;align-items:center}
@media(max-width:620px){.hero .actions{padding:calc(var(--rule)*.125) 0;row-gap:calc(var(--rule)*.25)}}
/* No sideways spill: the stamp waits at normal size (it only grows during its animation); the story clips its scattered copies */
.stamp{transform:rotate(-12deg) scale(1);visibility:hidden}
.decision-card.approved .stamp,.control-sheet.approved .stamp{visibility:visible}
@keyframes stamp{from{opacity:0;transform:rotate(-12deg) scale(2.4)}to{opacity:.9;transform:rotate(-12deg) scale(1)}}
.story,.control,.outcome,.proof{overflow-x:clip}
.story.is-live .scheme{right:0}

/* ---------- Subjects: looping strip + "All subjects" panel ---------- */
.ticker-lead{display:flex;flex-shrink:0;align-items:center;gap:var(--s3)}
.ticker-track{animation-duration:105s}
.subj-toggle{display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:8px 14px;border:1.5px solid var(--ink);border-radius:var(--r-pill);background:var(--card);font-size:var(--fs-ui);font-weight:700;color:var(--ink);white-space:nowrap;transition:background-color var(--fast) var(--ease),color var(--fast) var(--ease)}
.subj-toggle:hover,.subj-toggle[aria-expanded=true]{background:var(--ink);color:#fff}
.subj-toggle .i{transition:transform var(--mid) var(--ease)}
.subj-toggle[aria-expanded=true] .i{transform:rotate(45deg)}
.subjects-panel{border-bottom:1px solid var(--line);background:var(--card)}
.subjects-panel .wrap{padding-top:var(--s5);padding-bottom:var(--s5)}
.subjects-panel:not([hidden]){animation:panel-in var(--mid) var(--ease)}
@keyframes panel-in{from{opacity:0;transform:translateY(-6px)}}
.subj-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:var(--s4)}
.subj-group h3{margin-bottom:10px;font-size:var(--fs-sm);font-weight:700;letter-spacing:0;color:var(--muted)}
.subj-group ul{margin:0;padding:0;list-style:none}
.subj-group li{padding:5px 0;font-size:var(--fs-body);font-weight:600;color:var(--ink)}
.subj-open{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--s3);margin-top:var(--s5);padding-top:var(--s4);border-top:1px solid var(--line)}
.subj-open p{max-width:640px;margin:0;font-size:var(--fs-body);color:var(--text)}
.subj-open strong{color:var(--ink)}
.decide-open{margin-top:var(--s3);padding-left:14px;border-left:3px solid var(--teal);font-size:var(--fs-body)!important;color:var(--text)!important}
@media(max-width:900px){.ticker-lead{width:100%;justify-content:space-between;padding-right:var(--gutter)}.subj-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:620px){.subj-grid{grid-template-columns:1fr 1fr}.ticker-label{font-size:var(--fs-ui)}}

/* ---------- "Try now": one clear primary action while payments are not live ---------- */
.price-soon,.plan-soon{display:flex;align-items:center;gap:10px;margin:0 0 var(--s4);font-size:var(--fs-body);font-weight:600;color:var(--ink)}
.price-soon:before,.plan-soon:before{content:'';flex-shrink:0;width:8px;height:8px;border-radius:50%;background:var(--teal)}
.price-card.featured .plan-soon{color:#fff}
.plan-choice label.is-soon{opacity:.55;cursor:not-allowed}
.plan-choice label.is-soon span{font-weight:700;color:var(--teal)}
.action-bar .button.primary{flex:2}
.action-bar .button.outline{flex:1}

/* ---------- Hero: the launch film on its own (answer sheets removed) ---------- */
.hero-stage{height:auto;aspect-ratio:auto;display:flex;align-items:center;align-self:center}
.hero .video-frame.stage-film{position:relative;inset:auto;width:100%}

/* ---------- Hero: less empty space above the headline ---------- */
.hero{padding-top:var(--rule)}
.hero-copy{padding-top:0}

/* ---------- ⑥ Decision, as two matching cards ---------- */
.decide-head{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:var(--s3) var(--s6);margin-bottom:var(--s6)}
.decide-head h2{margin:0;font-size:clamp(40px,4.6vw,64px)}
.decide-head p{margin:0;font-size:var(--fs-lg);color:var(--muted)}
.decide-grid{grid-template-columns:7fr 5fr;gap:var(--s5);align-items:stretch;border-top:0}
.decide-plan,.decide-school{display:flex;flex-direction:column;align-self:stretch;padding:var(--s6);border:1px solid var(--line);border-radius:var(--r-md);background:var(--card);box-shadow:var(--sh-sm)}
.decide-school{background:var(--soft);box-shadow:none}
.decide-plan h3,.decide-school h3{margin:0 0 var(--s3);font-size:var(--fs-h3);line-height:1.2}
.decide-plan .price-line{margin:0 0 var(--s4)}
.decide-plan .price-big{font-size:clamp(72px,8vw,120px)}
.decide-plan .price-facts{margin-bottom:var(--s4)}
.decide-plan .actions,.decide-school .actions{margin-top:auto;padding-top:var(--s4);align-items:center}
.decide-school .decide-open{margin-bottom:var(--s4)}
@media(max-width:900px){
  .decide-grid{grid-template-columns:1fr;gap:var(--s4)}
  .decide-plan,.decide-school{padding:var(--s5);border:1px solid var(--line)}
  .decide-plan{padding-right:var(--s5)}
}
@media(max-width:620px){
  .decide-plan,.decide-school{padding:var(--s4)}
  .decide-plan .actions .button{width:100%}
}
.decide-plan .price-facts{display:grid;gap:10px}

/* Hero film: anchored to the headline (top on the "Graded in" ruled line), not centred on the whole column */
@media(min-width:901px){.hero-stage{align-self:start;margin-top:calc(var(--rule)*2)}}

/* ---------- Hero fits the first screen: the ruled-line spacing scales with screen height (15 lines of content, 1 above, 1 below, and the subject strip peeking) ---------- */
@media(min-width:901px){
  .hero{--rule:clamp(30px,calc((100vh - 85px)/18),42px);--rule:clamp(30px,calc((100svh - 85px)/18),42px);min-height:0;padding-bottom:var(--rule)}
  .hero h1{font-size:min(clamp(64px,5.8vw,80px),calc(var(--rule)*1.84))}
  /* the film is centred on the headline-to-buttons block (12 lines), whatever its size */
  .hero-stage{align-self:start;margin-top:0;height:calc(var(--rule)*12);display:flex;align-items:center}
}
@media(min-width:901px) and (max-width:1100px){
  .hero{--rule:clamp(28px,calc((100vh - 85px)/18),36px);--rule:clamp(28px,calc((100svh - 85px)/18),36px)}
  .hero h1{font-size:min(clamp(56px,6.2vw,64px),calc(var(--rule)*1.84))}
}

/* ---------- Lenis smooth scrolling ---------- */
html.lenis,html.lenis body{height:auto}
.lenis.lenis-smooth{scroll-behavior:auto!important}
.lenis.lenis-smooth [data-lenis-prevent]{overscroll-behavior:contain}
.lenis.lenis-stopped{overflow:hidden}