/* Study Katta — studykatta.com
   =========================================================================
   ONE design system, applied to every page. No framework and no webfont:
   these students are often on modest phones and slow connections, so every
   byte is one they wait for. System fonts render instantly.

   Colour discipline: blue carries structure, navy carries dark sections,
   orange is an ACCENT only — buttons, small marks, section labels. No orange
   backgrounds, no decorative patterns (they alias on phone screens).
   ========================================================================= */

:root{
  --navy:#0d2144;
  --navy-deep:#0a1628;
  --blue:#1e4db7;
  --blue-dark:#173995;
  --orange:#ff8a00;
  --orange-dark:#e67200;

  --surface:#fff;
  --bg:#f2f6fd;
  --text:#1a2233;
  --text-soft:#5a6b87;
  --border:#e8edf5;

  --tint-blue:#eaf0fe;
  --tint-orange:#fff3e0;
  --tint-green:#e8f7ee;

  --radius:16px;
  --shadow:0 8px 30px rgba(30,77,183,.08);
  --shadow-hover:0 12px 32px rgba(30,77,183,.12);
  --ease:cubic-bezier(.4,0,.2,1);
  --wrap:1140px;
  --font:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;font-family:var(--font);font-size:16px;font-weight:400;line-height:1.7;
  color:var(--text-soft);background:var(--surface);overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue)}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px}

/* ---------- type scale --------------------------------------------------- */
h1,h2,h3,h4{margin:0;color:var(--text);line-height:1.2;letter-spacing:-.02em}
h1{font-size:32px;font-weight:800;line-height:1.12}
h2{font-size:26px;font-weight:700}
h3{font-size:20px;font-weight:600}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}

.label{display:block;font-size:13px;font-weight:700;text-transform:uppercase;
  letter-spacing:1.5px;color:var(--orange);margin-bottom:10px}
.label::before{content:"— "}

.skip{position:absolute;left:-9999px;top:0;background:var(--navy);color:#fff;
  padding:12px 18px;z-index:200;border-radius:0 0 8px 0}
.skip:focus{left:0}

/* ---------- header ------------------------------------------------------- */
.site-header{position:sticky;top:0;z-index:100;background:var(--surface);
  border-bottom:1px solid var(--border);transition:box-shadow .2s var(--ease)}
.site-header.scrolled{box-shadow:0 2px 12px rgba(13,33,68,.08)}
.nav{display:flex;align-items:center;gap:12px;height:68px}

.logo{display:flex;align-items:center;gap:9px;margin-right:auto;text-decoration:none}
.logo img{height:38px;width:auto;border-radius:8px}
.logo-text{font-size:20px;font-weight:700;letter-spacing:-.3px;line-height:1;white-space:nowrap}
.logo-text .b{color:var(--blue)}
.logo-text .o{color:var(--orange)}

.nav-links{display:none;align-items:center;gap:26px;margin:0 auto}
.nav-links a{color:var(--text-soft);text-decoration:none;font-size:15px;font-weight:600;padding:4px 0;
  border-bottom:2px solid transparent}
.nav-links a:hover,.nav-links a[aria-current=page]{color:var(--blue);border-bottom-color:var(--orange)}

.nav-cta{display:inline-flex;align-items:center;gap:6px;background:var(--orange);color:#fff;
  text-decoration:none;font-weight:700;font-size:13px;height:38px;padding:0 16px;
  border-radius:100px;white-space:nowrap;transition:background .16s var(--ease)}
.nav-cta:hover{background:var(--orange-dark)}
.nav-cta .long{display:none}

.hamburger{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:32px;height:38px;border:0;background:transparent;cursor:pointer;padding:0}
.hamburger i{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;
  transition:transform .2s var(--ease),opacity .2s}
.hamburger[aria-expanded=true] i:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger[aria-expanded=true] i:nth-child(2){opacity:0}
.hamburger[aria-expanded=true] i:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.mobile-menu{overflow:hidden;max-height:0;background:var(--surface);transition:max-height .28s var(--ease)}
.mobile-menu.open{max-height:520px;border-top:1px solid var(--border)}
.mobile-menu a.mi{display:flex;align-items:center;height:54px;padding:0 20px;color:var(--text);
  text-decoration:none;font-weight:600;border-bottom:1px solid var(--border)}
.mobile-menu .mm-foot{padding:18px 20px 22px}
.mobile-menu .mm-foot .btn{width:100%}
.mobile-menu .mm-link{display:block;margin-top:12px;text-align:center;color:var(--blue);
  font-weight:600;font-size:15px;text-decoration:none}

/* ---------- buttons ------------------------------------------------------ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:52px;padding:0 26px;border-radius:100px;font-size:15px;font-weight:700;
  text-decoration:none;border:1.5px solid transparent;cursor:pointer;
  transition:background .16s var(--ease),transform .16s var(--ease),box-shadow .16s var(--ease)}
.btn:active{transform:scale(.99)}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 4px 14px rgba(255,138,0,.28)}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-1px)}
.btn-secondary{background:var(--surface);color:var(--blue);border-color:var(--blue)}
.btn-secondary:hover{background:var(--tint-blue)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}
/* Two pills side by side overflow a 360px viewport; stacked is better than cut. */
.hero .btn-row .btn,.cta .btn-row .btn{width:100%}

/* on the navy CTA */
.on-navy .btn-secondary{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.on-navy .btn-secondary:hover{background:#fff;color:var(--navy)}

/* ---------- sections ----------------------------------------------------- */
section{padding:56px 0}
.bg-soft{background:var(--bg)}
.sec-head{max-width:62ch;margin:0 auto 34px;text-align:center}
.sec-head p{color:var(--text-soft);margin:10px 0 0}

.grid{display:grid;gap:16px;grid-template-columns:1fr}

.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow);transition:transform .18s var(--ease),box-shadow .18s var(--ease)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.card .ico{width:52px;height:52px;border-radius:50%;background:var(--tint-blue);color:var(--blue);
  display:grid;place-items:center;font-size:23px;margin-bottom:14px}
.card h3{margin-bottom:8px}
.card p{margin:0;font-size:15px}

/* ---------- hero --------------------------------------------------------- */
.hero{background:var(--bg);padding:44px 0 52px;border-bottom:1px solid var(--border)}
.hero-grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:center}
.badge{display:inline-flex;align-items:center;gap:7px;background:var(--tint-blue);color:var(--blue);
  padding:8px 16px;border-radius:100px;font-size:13px;font-weight:700;margin-bottom:18px}
.hero h1{margin-bottom:14px}
.hero h1 .accent{color:var(--orange)}
.hero .sub{font-size:17px;margin:0 0 26px;max-width:460px}
.hero-trust{margin:22px 0 0;font-size:14px;color:var(--text-soft);font-weight:600}

/* ---------- phone mockup -------------------------------------------------
   Mirrors the app's own home screen. A real screenshot would be another
   download and would go stale the next time the app UI changed. */
.phone{width:236px;height:472px;background:var(--bg);border-radius:34px;border:8px solid #16233f;
  box-shadow:0 18px 44px rgba(13,33,68,.22);position:relative;margin:0 auto;overflow:hidden}
.ph-head{background:#fff;padding:15px 13px 10px;display:flex;align-items:center;
  justify-content:space-between;border-bottom:1px solid var(--border)}
.ph-name{font-size:13px;font-weight:800;letter-spacing:-.2px;color:var(--blue)}
.ph-name b{color:var(--orange)}
.ph-bell{width:22px;height:22px;border-radius:7px;background:var(--tint-blue);
  display:grid;place-items:center;font-size:11px}
.ph-body{padding:11px}
.ph-hero{background:var(--blue);border-radius:12px;padding:12px;color:#fff;margin-bottom:10px}
.ph-hero .k{font-size:9px;opacity:.85;font-weight:600}
.ph-hero .v{font-size:18px;font-weight:800;margin-top:2px}
.ph-hero .track{height:5px;border-radius:99px;background:rgba(255,255,255,.28);margin-top:8px}
.ph-hero .fill{height:5px;width:62%;border-radius:99px;background:var(--orange)}
.ph-3{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin-bottom:10px}
.ph-s{background:#fff;border:1px solid var(--border);border-radius:10px;padding:8px 4px;text-align:center}
.ph-s .i{font-size:12px;line-height:1}
.ph-s .v{font-size:12px;font-weight:800;color:var(--text);margin-top:2px}
.ph-s .k{font-size:7px;color:var(--text-soft);font-weight:600}
.ph-row{background:#fff;border:1px solid var(--border);border-radius:10px;padding:9px 10px;
  display:flex;align-items:center;gap:8px;margin-bottom:7px}
.ph-row .i{width:22px;height:22px;border-radius:7px;background:var(--tint-orange);
  display:grid;place-items:center;font-size:11px;flex:0 0 auto}
.ph-row .t{font-size:10px;font-weight:700;color:var(--text);line-height:1.3}
.ph-row .s{font-size:9px;color:var(--text-soft)}
.ph-nav{position:absolute;left:0;right:0;bottom:0;display:flex;justify-content:space-around;
  background:#fff;border-top:1px solid var(--border);padding:9px 8px 11px}
.ph-nav span{font-size:12px;opacity:.4}
.ph-nav span.on{opacity:1}

/* ---------- stats (blue) -------------------------------------------------- */
.stats{background:var(--blue);padding:40px 0}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);text-align:center}
.stat{padding:16px 8px}
.stat+.stat{border-left:1px solid rgba(255,255,255,.18)}
.stat:nth-child(3){border-left:0}
.stat:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.18)}
.stat .num{font-size:30px;font-weight:800;color:#fff;line-height:1.1}
.stat .lbl{font-size:13px;color:rgba(255,255,255,.78);font-weight:600;margin-top:4px}

/* ---------- exam cards ---------------------------------------------------- */
.exam{display:flex;flex-direction:column;gap:7px;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--radius);padding:18px;
  text-decoration:none;color:var(--text);box-shadow:var(--shadow);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease)}
a.exam:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.exam .ico{width:42px;height:42px;border-radius:12px;background:var(--tint-blue);
  display:grid;place-items:center;font-size:20px}
.exam .n{font-weight:700;font-size:15px;line-height:1.35;color:var(--text)}
.exam .tag{align-self:flex-start;display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;border-radius:100px;padding:4px 11px;
  background:var(--tint-green);color:#0f7a3d}
.exam .sub{font-size:13px;color:var(--text-soft);line-height:1.5;margin:0}
.exam .go{font-size:13px;font-weight:700;color:var(--orange);margin-top:6px}
.dot{width:7px;height:7px;border-radius:50%;background:#16a34a;flex:0 0 auto}
.exam.soon{opacity:.7}
.exam.soon .ico{background:#f1f4f9}
.exam.soon .tag{background:#f1f4f9;color:var(--text-soft)}

/* ---------- steps --------------------------------------------------------- */
.steps{display:grid;grid-template-columns:1fr;gap:24px}
.step{text-align:center;position:relative}
.step .n{width:56px;height:56px;border-radius:50%;background:var(--orange);color:#fff;
  font-size:21px;font-weight:800;display:grid;place-items:center;margin:0 auto 14px;
  box-shadow:0 6px 16px rgba(255,138,0,.3)}
.step h3{margin-bottom:6px}
.step p{margin:0;font-size:15px}

/* ---------- CTA (navy) ---------------------------------------------------- */
.cta{background:var(--navy);color:#fff;text-align:center}
.cta h2{color:#fff}
.cta p{color:rgba(255,255,255,.78);margin:12px auto 24px;max-width:50ch}
.cta .btn-row{justify-content:center}

/* ---------- long-form / legal --------------------------------------------- */
.page-head{background:var(--bg);border-bottom:1px solid var(--border);padding:40px 0 34px}
.page-head h1{font-size:28px;margin-bottom:8px}
.page-head .meta{color:var(--text-soft);font-size:14px;margin:0}
.doc{display:grid;grid-template-columns:1fr;gap:30px;padding:36px 0 8px}
.toc{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);
  padding:20px 22px;align-self:start}
.toc h2{font-size:13px;text-transform:uppercase;letter-spacing:1.2px;color:var(--text-soft);
  margin-bottom:12px;font-weight:700}
.toc ol{margin:0;padding-left:20px}
.toc li{margin-bottom:7px;font-size:15px}
.toc a{color:var(--blue);text-decoration:none}
.toc a:hover{text-decoration:underline}
.prose{max-width:72ch}
.prose h2{font-size:20px;margin:34px 0 10px;scroll-margin-top:84px}
.prose h3{font-size:17px;margin:22px 0 8px}
.prose p,.prose li{color:#33415c}
.prose ul{padding-left:22px}
.prose li{margin-bottom:7px}
.prose a{word-break:break-word}
.prose table{width:100%;border-collapse:collapse;margin:18px 0;font-size:15px}
.prose th,.prose td{border:1px solid var(--border);padding:10px 12px;text-align:left}
.prose th{background:var(--bg);font-weight:700}
.callout{background:var(--tint-orange);border-left:4px solid var(--orange);padding:16px 18px;
  border-radius:12px;margin:20px 0}
.callout p{margin:0}

/* ---------- founder -------------------------------------------------------- */
.founder{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);display:grid;gap:18px;grid-template-columns:1fr}
.avatar{width:68px;height:68px;border-radius:50%;background:var(--blue);color:#fff;
  display:grid;place-items:center;font-size:24px;font-weight:800}
.founder h3{margin-bottom:2px}
.founder .role{color:var(--blue);font-weight:600;font-size:15px}
.founder .loc{color:var(--text-soft);font-size:14px;margin-bottom:12px}
.founder blockquote{margin:0;font-style:italic;color:#33415c;font-size:15px;
  border-left:3px solid var(--tint-orange);padding-left:14px}

/* ---------- FAQ ------------------------------------------------------------- */
.faq{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.faq+.faq{margin-top:12px}
.faq summary{padding:17px 20px;font-weight:700;color:var(--text);cursor:pointer;list-style:none;
  display:flex;justify-content:space-between;gap:14px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:21px;color:var(--orange);font-weight:800;line-height:1}
.faq[open] summary::after{content:"–"}
.faq .a{padding:0 20px 17px;font-size:15px}

/* ---------- current affairs -------------------------------------------------- */
.tabs{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;margin-bottom:24px;
  -webkit-overflow-scrolling:touch}
.tab{flex:0 0 auto;background:var(--surface);border:1px solid var(--border);border-radius:100px;
  padding:9px 16px;font-size:14px;font-weight:700;color:var(--text-soft);cursor:pointer;white-space:nowrap}
.tab[aria-selected=true]{background:var(--blue);color:#fff;border-color:var(--blue)}
.article{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:20px;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease)}
.article:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.article .row{display:flex;gap:8px;align-items:center;margin-bottom:10px;flex-wrap:wrap}
.date-badge{background:var(--bg);border-radius:100px;padding:4px 10px;font-size:12px;
  font-weight:700;color:var(--text-soft)}
.cat{border-radius:100px;padding:4px 10px;font-size:12px;font-weight:700;
  background:var(--tint-blue);color:var(--blue)}
.article h3{font-size:17px;margin-bottom:8px}
.article p{font-size:15px;margin:0 0 14px}
.article .links{margin-top:auto;display:flex;gap:16px;font-size:14px;font-weight:700}

/* ---------- forms ------------------------------------------------------------- */
.field{margin-bottom:16px}
.field label{display:block;font-weight:700;font-size:14px;color:var(--text);margin-bottom:6px}
.field input,.field textarea{width:100%;padding:13px 14px;border:1px solid var(--border);
  border-radius:12px;font-family:var(--font);font-size:16px;background:var(--surface);color:var(--text)}
.field input:focus,.field textarea:focus{outline:2px solid var(--orange);outline-offset:1px;border-color:transparent}
.field textarea{min-height:130px;resize:vertical}

/* ---------- footer -------------------------------------------------------------- */
.site-footer{background:var(--navy-deep);color:#b8c4d9;padding:44px 0 24px;font-size:15px}
.site-footer a{color:#b8c4d9;text-decoration:none}
.site-footer a:hover{color:#fff;text-decoration:underline}
.footer-grid{display:grid;gap:26px;grid-template-columns:1fr}
.footer-grid h4{color:#fff;font-size:15px;margin-bottom:12px;font-weight:700}
.footer-grid ul{list-style:none;padding:0;margin:0}
.footer-grid li{margin-bottom:9px}
.f-logo{display:flex;align-items:center;gap:9px;margin-bottom:10px}
.f-logo img{height:36px;width:auto;border-radius:8px}
.f-logo .logo-text .b{color:#fff}

.social{display:flex;gap:12px;margin-top:16px;flex-wrap:wrap}
.social a{width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.14);display:flex;align-items:center;justify-content:center;
  color:#fff;transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease)}
.social a:hover{transform:translateY(-2px);text-decoration:none}
.social a svg{width:19px;height:19px;fill:currentColor;display:block}
.social .ig:hover{background:#e1306c;border-color:#e1306c}
.social .fb:hover{background:#1877f2;border-color:#1877f2}
.social .tg:hover{background:#229ed9;border-color:#229ed9}
.social .yt:hover{background:#f00;border-color:#f00}

.play-badge{display:inline-flex;align-items:center;gap:10px;margin-top:16px;background:#000;
  border:1px solid rgba(255,255,255,.2);border-radius:9px;padding:8px 15px;color:#fff;text-decoration:none}
.play-badge:hover{border-color:rgba(255,255,255,.4);text-decoration:none}
.play-badge svg{width:19px;height:21px;flex:0 0 auto;display:block}
.play-badge .t1{font-size:9px;opacity:.8;letter-spacing:.4px;text-transform:uppercase}
.play-badge .t2{font-size:14px;font-weight:700;letter-spacing:-.2px}

.footer-div{border-top:1px solid rgba(255,255,255,.1);margin-top:28px;padding-top:18px}
.footer-bottom{display:flex;flex-direction:column;gap:10px;align-items:center;text-align:center;
  color:#8b99b3;font-size:14px}
.footer-bottom .legal{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}
.made{margin:14px 0 0;text-align:center;font-size:13px;color:rgba(255,255,255,.45)}

/* ---------- floating controls ----------------------------------------------------- */
.fab{position:fixed;right:16px;border-radius:50%;width:48px;height:48px;display:grid;
  place-items:center;font-size:20px;text-decoration:none;border:0;cursor:pointer;
  box-shadow:0 6px 18px rgba(13,33,68,.22);z-index:90}
.fab-wa{bottom:20px;background:#25d366;color:#fff}
.fab-dl{bottom:78px;background:var(--orange);color:#fff;width:auto;height:44px;
  border-radius:100px;padding:0 16px;font-size:13px;font-weight:800;gap:6px;
  opacity:0;visibility:hidden;transition:opacity .2s,visibility .2s}
.fab-dl.show{opacity:1;visibility:visible}
@media (min-width:768px){.fab-dl{display:none}}

/* ---------- reveal ------------------------------------------------------------------ */
.reveal{opacity:0;transform:translateY(14px);
  transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive --------------------------------------------------------------- */
@media (min-width:520px){
  .exam-grid{grid-template-columns:repeat(2,1fr)}
  .hero .btn-row .btn,.cta .btn-row .btn{width:auto}
  .footer-bottom{flex-direction:row;justify-content:space-between;text-align:left}
}
@media (min-width:768px){
  h1{font-size:48px}
  h2{font-size:34px}
  section{padding:88px 0}
  .hero{padding:76px 0 84px}
  .nav-links{display:flex}
  .hamburger{display:none}
  .mobile-menu{display:none}
  .nav-cta{height:44px;padding:0 20px;font-size:14px}
  .nav-cta .short{display:none}
  .nav-cta .long{display:inline}
  .grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(4,1fr)}
  .stat:nth-child(-n+2){border-bottom:0}
  .stat:nth-child(3){border-left:1px solid rgba(255,255,255,.18)}
  .stat .num{font-size:36px}
  .steps{grid-template-columns:repeat(3,1fr);gap:20px}
  .founder{grid-template-columns:auto 1fr;gap:22px;padding:30px}
  .footer-grid{grid-template-columns:2fr 1fr 1fr 1.2fr}
  .page-head h1{font-size:36px}
}
@media (min-width:940px){
  .hero-grid{grid-template-columns:1.05fr .95fr}
  .phone{margin:0 0 0 auto}
}
@media (min-width:1000px){
  .grid-3{grid-template-columns:repeat(3,1fr)}
  .exam-grid{grid-template-columns:repeat(4,1fr)}
  .doc{grid-template-columns:250px 1fr;gap:44px}
  .toc{position:sticky;top:86px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .card,.exam,.article,.btn,.site-header,.mobile-menu,.social a{transition:none}
  .card:hover,a.exam:hover,.article:hover,.btn-primary:hover,.social a:hover{transform:none}
}

/* ==========================================================================
   DEPTH LAYER
   The clean base above defines structure and tokens. This adds the richness:
   gradients, glass, orbs, motion. Kept separate so the structural rules stay
   readable and one can be changed without disturbing the other.

   Every animation is transform/opacity only, and all of it is switched off
   under prefers-reduced-motion at the end of this file.
   ========================================================================== */

:root{
  --navy-2:#1a2b6b;
  --shadow-soft:0 1px 3px rgba(13,33,68,.05),0 8px 30px rgba(30,77,183,.08);
  --shadow-lift:0 2px 6px rgba(13,33,68,.05),0 16px 40px rgba(30,77,183,.14);
}

/* Layered shadow on every card surface. */
.card,.exam,.article,.faq,.founder,.toc{box-shadow:var(--shadow-soft)}
.card:hover,a.exam:hover,.article:hover{box-shadow:var(--shadow-lift)}

/* ---------- hero ---------------------------------------------------------- */
.hero{background:linear-gradient(165deg,#f7f9fc 0%,#eef3ff 100%);position:relative;overflow:hidden}
/* One soft orange orb, top right. No dot or grid patterns — they alias badly
   on phone screens. */
.hero::after{content:"";position:absolute;right:-120px;top:-160px;width:460px;height:460px;
  border-radius:50%;pointer-events:none;filter:blur(50px);
  background:radial-gradient(circle,rgba(255,138,0,.08) 0%,transparent 70%)}
.hero .wrap{position:relative;z-index:1}
.hero h1{letter-spacing:-1.2px}
.badge{box-shadow:0 2px 10px rgba(30,77,183,.12)}

@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.hero .phone{animation:float 5s ease-in-out infinite;
  box-shadow:0 0 60px rgba(255,138,0,.14),0 22px 50px rgba(13,33,68,.24)}

/* ---------- stats: full navy section, glass cards ------------------------- */
.stats{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 100%);
  padding:56px 0;position:relative;overflow:hidden}
.stats::after{content:"";position:absolute;left:-140px;bottom:-180px;width:420px;height:420px;
  border-radius:50%;pointer-events:none;filter:blur(60px);
  background:radial-gradient(circle,rgba(59,130,246,.18) 0%,transparent 70%)}
.stats .wrap{position:relative;z-index:1}
.stats-grid{grid-template-columns:repeat(2,1fr);gap:14px}
.stat{background:rgba(255,255,255,.06);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);
  padding:22px 12px;box-shadow:inset 0 1px 0 rgba(255,255,255,.1);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease)}
.stat+.stat,.stat:nth-child(3){border-left:1px solid rgba(255,255,255,.12)}
.stat:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.12)}
.stat:hover{transform:translateY(-4px);border-color:rgba(255,138,0,.5);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14),0 12px 30px rgba(255,138,0,.24)}
.stat .s-ico{width:32px;height:32px;margin:0 auto 8px;color:var(--orange);display:block}
.stat .s-ico svg{width:100%;height:100%;fill:currentColor;display:block}
/* Colour set first, so a browser without background-clip:text still shows a
   readable number instead of nothing. */
.stat .num{color:var(--orange);
  background:linear-gradient(90deg,#ff8a00,#ffb347);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
@supports not ((-webkit-background-clip:text) or (background-clip:text)){
  .stat .num{-webkit-text-fill-color:currentColor}
}
.stat .grow{font-size:11px;color:rgba(255,255,255,.5);font-weight:600;margin-top:4px}

/* ---------- why: comparison ------------------------------------------------ */
.compare{display:grid;gap:16px;grid-template-columns:1fr}
.compare-col{border-radius:var(--radius);padding:26px 24px}
.compare-col h3{display:flex;align-items:center;gap:9px;margin-bottom:16px;font-size:18px}
.compare-col ul{list-style:none;margin:0;padding:0}
.compare-col li{display:flex;gap:11px;align-items:flex-start;margin-bottom:13px;font-size:15px;line-height:1.6}
.compare-col li:last-child{margin-bottom:0}
.compare-col li i{flex:0 0 auto;font-style:normal;font-weight:800;width:20px;text-align:center}
.c-without{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow-soft)}
.c-without h3{color:var(--text-soft)}
.c-without li{color:var(--text-soft)}
.c-without li i{color:#c2542f}
.c-with{background:linear-gradient(165deg,#fff 0%,var(--tint-blue) 100%);
  border:1px solid rgba(30,77,183,.16);box-shadow:0 2px 6px rgba(13,33,68,.05),0 14px 36px rgba(30,77,183,.14)}
.c-with h3{color:var(--blue)}
.c-with li{color:var(--text);font-weight:600}
.c-with li i{color:#16a34a}

/* ---------- features: gradient icon, orange reveal -------------------------- */
.card{border-top:3px solid transparent;transition:transform .22s var(--ease),
  box-shadow .22s var(--ease),border-top-color .22s var(--ease)}
.card:hover{border-top-color:var(--orange)}
.card .ico{background:linear-gradient(135deg,#eaf0fe 0%,#dbe6ff 100%)}
.card .more{display:inline-block;margin-top:14px;font-size:14px;font-weight:700;
  color:var(--orange);text-decoration:none}
.card .more:hover{text-decoration:underline}

/* ---------- exams: gradient accents ----------------------------------------- */
.exam{position:relative;overflow:hidden}
/* Pseudo-element rather than border-image: border-image cannot follow a rounded
   corner, and a 16px card with square gradient corners looks broken. */
.exam::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--orange),var(--blue));opacity:.9}
.exam.soon::before{background:#dfe5ef}
.exam .ico{background:linear-gradient(135deg,#eaf0fe 0%,#dbe6ff 100%);margin-top:5px}
.exam .go{transition:transform .2s var(--ease)}
a.exam:hover .go{transform:translateX(3px)}
/* Touch devices have no hover, so the label must simply be present. */
@media (hover:none){.exam .go{opacity:1;transform:none}}

/* ---------- steps: dashed connector ------------------------------------------ */
.step .n{background:linear-gradient(135deg,var(--orange) 0%,#ff6b00 100%)}
.step .s-ico{font-size:26px;line-height:1;margin-bottom:10px}

/* ---------- CTA: navy gradient, orbs, glass card ------------------------------- */
.cta{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 100%);
  position:relative;overflow:hidden;padding:64px 0}
.cta::before{content:"";position:absolute;right:-120px;top:-140px;width:400px;height:400px;
  border-radius:50%;pointer-events:none;filter:blur(60px);
  background:radial-gradient(circle,rgba(255,138,0,.16) 0%,transparent 70%)}
.cta::after{content:"";position:absolute;left:-140px;bottom:-160px;width:400px;height:400px;
  border-radius:50%;pointer-events:none;filter:blur(60px);
  background:radial-gradient(circle,rgba(59,130,246,.2) 0%,transparent 70%)}
.cta .wrap{position:relative;z-index:1}
.cta-card{background:rgba(255,255,255,.05);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border:1px solid rgba(255,255,255,.1);border-radius:28px;padding:40px 22px}

/* ---------- responsive --------------------------------------------------------- */
@media (min-width:520px){
  .stats-grid{gap:16px}
}
@media (min-width:768px){
  .hero h1{font-size:56px;letter-spacing:-1.6px}
  .stats{padding:88px 0}
  .stats-grid{grid-template-columns:repeat(4,1fr);gap:18px}
  .stat,.stat+.stat,.stat:nth-child(3){border:1px solid rgba(255,255,255,.12)}
  .stat:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.12)}
  .compare{grid-template-columns:1fr 1fr;gap:20px}
  .cta-card{padding:56px 44px}
  /* Drawn only BETWEEN steps, never trailing off the last one. */
  .step:not(:last-child)::after{content:"";position:absolute;top:28px;
    left:calc(50% + 44px);right:calc(-50% + 44px);border-top:2px dashed var(--border)}
}

@media (max-width:767px){
  /* backdrop-filter is where cheap Android phones stall, and that is most of
     this audience. Halve the blur and shrink what has to be blurred. */
  .stat{-webkit-backdrop-filter:blur(9px);backdrop-filter:blur(9px)}
  .cta-card{-webkit-backdrop-filter:blur(11px);backdrop-filter:blur(11px)}
  .hero::after,.stats::after,.cta::before,.cta::after{filter:blur(40px);width:280px;height:280px}
}

@media (prefers-reduced-motion:reduce){
  .hero .phone{animation:none}
  .card,.exam,.stat,.article{transition:none}
  .card:hover,a.exam:hover,.stat:hover,.article:hover{transform:none}
  .exam .go{opacity:1;transform:none}
  .step:not(:last-child)::after{transition:none}
}