/* critical.css — Above-the-fold foundation (INLINE THIS IN <head> ON LIVE)
 * Single source of truth for: self-hosted fonts, reset, design tokens, base body.
 * In dev this is <link>ed; on live its contents are inlined into <head> so the
 * first paint needs no network round-trip. Nothing else may redefine these tokens. */

/* ── SELF-HOSTED FONTS — Nunito latin normal, woff2 only ── */
@font-face { font-family:'Nunito'; src:url('../fonts/nunito-latin-200-normal.woff2') format('woff2'); font-weight:200; font-style:normal; font-display:swap; }
@font-face { font-family:'Nunito'; src:url('../fonts/nunito-latin-300-normal.woff2') format('woff2'); font-weight:300; font-style:normal; font-display:swap; }
@font-face { font-family:'Nunito'; src:url('../fonts/nunito-latin-400-normal.woff2') format('woff2'); font-weight:400; font-style:normal; font-display:swap; }
@font-face { font-family:'Nunito'; src:url('../fonts/nunito-latin-500-normal.woff2') format('woff2'); font-weight:500; font-style:normal; font-display:swap; }
@font-face { font-family:'Nunito'; src:url('../fonts/nunito-latin-600-normal.woff2') format('woff2'); font-weight:600; font-style:normal; font-display:swap; }
@font-face { font-family:'Nunito'; src:url('../fonts/nunito-latin-700-normal.woff2') format('woff2'); font-weight:700; font-style:normal; font-display:swap; }
@font-face { font-family:'Nunito'; src:url('../fonts/nunito-latin-800-normal.woff2') format('woff2'); font-weight:800; font-style:normal; font-display:swap; }
@font-face { font-family:'Nunito'; src:url('../fonts/nunito-latin-900-normal.woff2') format('woff2'); font-weight:900; font-style:normal; font-display:swap; }

/* ── RESET ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
img,svg{display:block;max-width:100%}
button{font-family:inherit;cursor:pointer;border:none;background:none}
a{text-decoration:none;color:inherit}
ul{list-style:none}

/* ── DESIGN TOKENS ── */
:root{
  --bg-top:     #1A2238;
  --bg-bot:     #1A2038;
  --navy:       #111830;
  --blue:       #4f86f7;
  --yellow:     #FF8C61;
  --yellow-dk:  #e06535;
  --green:      #34d399;
  --coral:      #fb7185;
  --white:      #ffffff;
  --text-dim:   rgba(255,255,255,0.58);
  --text-faint: rgba(255,255,255,0.28);
  --card-bg:    rgba(255,255,255,0.05);
  --card-bdr:   rgba(255,255,255,0.09);
  --ff:         'Nunito', sans-serif;
  --px:         clamp(16px,5vw,64px);
  --r-pill:     100px;
  --r-lg:       22px;
  --r-md:       12px;
}

/* ── BASE ── */
body{
  font-family:var(--ff);
  background:var(--bg-bot);
  color:var(--white);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeSpeed;
}

/* ════════════════════════════════════════════════════════════
   ABOVE-THE-FOLD COMPONENTS — Nav + Hero
   Moved here from layout.css / components.css so a live page can
   paint the first screen from the inlined critical CSS alone.
   Order preserved (layout-origin rules, then component-origin).
════════════════════════════════════════════════════════════ */

/* ══════════════════════════
   NAV — Structural wrapper
══════════════════════════ */
.nav{
  position:sticky;top:0;z-index:300;
  background:rgba(26,32,56,0.88);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--card-bdr);
  contain:layout style;
}
.nav__inner{
  max-width:1280px;margin:0 auto;
  display:flex;align-items:center;
  justify-content:space-between;
  padding:0 var(--px);height:72px;gap:24px;
}

/* Logo */
.nav__logo{
  display:flex;align-items:center;
  gap:10px;flex-shrink:0;
}

/* Nav links */
.nav__links{
  display:flex;gap:clamp(4px,1.5vw,12px);
  align-items:center;flex:1;justify-content:center;
}

/* Nav actions */
.nav__actions{display:flex;gap:10px;flex-shrink:0;}

/* Hamburger */
.nav__burger{
  display:none;flex-direction:column;gap:5px;
  padding:8px;border-radius:8px;
  background:var(--card-bg);border:1px solid var(--card-bdr);
  min-width:38px;min-height:38px;
  align-items:center;justify-content:center;
}

.nav__burger span{
  display:block;width:20px;height:2px;
  background:var(--white);border-radius:2px;
  transition:transform 0.24s,opacity 0.24s;
  transform-origin:center;
}
.nav__burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav__burger.open span:nth-child(2){opacity:0;transform:scaleX(0);}
.nav__burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* Mobile drawer */
.nav__drawer{
  display:none;flex-direction:column;
  background:var(--navy);
  border-top:1px solid var(--card-bdr);
  padding:12px var(--px) 20px;gap:2px;
}
.nav__drawer.open{
  display:flex;
  animation:drawerIn 0.22s ease both;
}
.nav__drawer a{
  font-size:15px;font-weight:700;
  color:var(--text-dim);
  padding:12px 10px;border-radius:8px;
  transition:background 0.15s,color 0.15s;
}
.nav__drawer a:hover{background:var(--card-bg);color:var(--white);}
.nav__drawer-divider{
  height:1px;background:var(--card-bdr);margin:8px 0;
}
.nav__drawer-btns{
  display:flex;gap:10px;margin-top:6px;
}
.nav__drawer-btns .btn-login,
.nav__drawer-btns .btn-signup{
  flex:1;text-align:center;
}

/* ══════════════════════════
   HERO — Section container
══════════════════════════ */
.hero{
  background:linear-gradient(to bottom,var(--bg-top),var(--bg-bot));
  min-height:clamp(560px,88vh,840px);
  display:flex;flex-direction:column;
  justify-content:center;
  padding:clamp(48px,8vw,96px) var(--px) clamp(80px,10vw,120px);
  position:relative;overflow:hidden;
  contain:layout style;
}

/* Radial blue glow */
.hero::before{
  content:'';position:absolute;
  top:-5%;left:50%;
  width:clamp(400px,65vw,860px);
  height:clamp(400px,65vw,860px);
  background:radial-gradient(circle,rgba(79,134,247,0.1) 0%,transparent 68%);
  transform:translateX(-50%);
  pointer-events:none;border-radius:50%;
}

/* CSS star particles */
.hero__stars{
  position:absolute;inset:0;
  pointer-events:none;overflow:hidden;
}
.star{
  position:absolute;border-radius:50%;
  background:rgba(255,255,255,0.55);
  animation:twinkle var(--d,3s) ease-in-out infinite var(--delay,0s);
}

/* Hero inner grid */
.hero__inner{
  position:relative;z-index:2;
  max-width:1280px;margin:0 auto;width:100%;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:clamp(32px,5vw,80px);
  align-items:center;
}

/* ── HERO LEFT ── */
.hero__left{
  display:flex;flex-direction:column;
}

/* ── HERO RIGHT — Mascot ── */
.hero__right{
  display:flex;align-items:center;
  justify-content:center;
  position:relative;
}
.hero__mascot-wrap{
  position:relative;
  width:clamp(220px,36vw,420px);
  aspect-ratio:1;
}

/* Circle — blends with background */
.hero__mascot-circle{
  width:100%;height:100%;
  background:rgba(255,255,255,0.04);
  border:1.5px solid rgba(255,255,255,0.08);
  border-radius:50%;
  display:flex;align-items:center;
  justify-content:center;
  animation:floatCircle 4.5s ease-in-out infinite;
  will-change:transform;
}

/* Keyboard SVG — inline, zero requests */
.hero__keyboard{width:68%;}

/* Wave divider — absolute bottom like v1 */
.hero__wave{
  position:absolute;
  bottom:-2px;left:0;right:0;
  line-height:0;
  pointer-events:none;
  z-index:2;
}
.hero__wave svg{
  width:100%;
  height:clamp(40px,6vw,80px);
  display:block;
  animation:waveDrift 8s ease-in-out infinite alternate;
}

/* ── ENTRY ANIMATIONS ── */
.hero__left>*{
  opacity:0;transform:translateY(26px);
  transition:opacity 0.52s ease,transform 0.52s ease;
}
.hero.loaded .hero__left>*{opacity:1;transform:translateY(0);}
.hero.loaded .hero__left>*:nth-child(1){transition-delay:0.05s;}
.hero.loaded .hero__left>*:nth-child(2){transition-delay:0.15s;}
.hero.loaded .hero__left>*:nth-child(3){transition-delay:0.25s;}
.hero.loaded .hero__left>*:nth-child(4){transition-delay:0.35s;}

.hero__right{
  opacity:0;
  transform:translateX(28px) scale(0.95);
  transition:opacity 0.65s ease 0.28s,transform 0.65s ease 0.28s;
}
.hero.loaded .hero__right{
  opacity:1;transform:translateX(0) scale(1);
}

/* ── NAV + HERO responsive (moved from layout.css) ── */
/* Tablet ≤ 960px */
@media(max-width:960px){
  .nav__links{display:none;}
  .nav__actions{display:none;}
  .nav__burger{display:flex;}

  .hero__inner{
    grid-template-columns:1fr;
    text-align:center;
  }
  .hero__desc{
    max-width:100%;
    margin-left:auto;margin-right:auto;
  }
  .hero__btns{justify-content:center;}
  .hero__right{order:-1;}
  .hero__mascot-wrap{
    width:clamp(200px,52vw,320px);
  }
  .hero__chip{padding:8px 10px;gap:7px;}
  .hero__chip--wpm{right:-2%;top:4%;}
  .hero__chip--acc{left:-2%;bottom:6%;}
  .hero__chip--streak{right:-3%;bottom:28%;}
}

/* Mobile ≤ 580px */
@media(max-width:580px){
  .hero__chip--streak{display:none;}
  .hero__chip--wpm{right:-1%;top:3%;}
  .hero__chip--acc{left:-1%;bottom:5%;}
  .hero__mascot-wrap{width:clamp(180px,68vw,280px);}
  .hero__btns{flex-direction:column;align-items:center;}
  .btn-start,.btn-cert{
    width:100%;max-width:320px;
    justify-content:center;
  }
}

/* Small mobile ≤ 380px */
@media(max-width:380px){
  .hero__chip--wpm,
  .hero__chip--acc{display:none;}
  .nav__logo-name{font-size:17px;}
}

/* ══════════════════════════
   NAV — Logo & link components (moved from components.css)
══════════════════════════ */
/* Logo */
.nav__logo-mark{
  width:38px;height:38px;aspect-ratio:1;
  background:linear-gradient(135deg,#FF8C61,#e06535);
  border-radius:11px;
  display:grid;place-items:center;
  font-size:18px;font-weight:800;
  color:var(--navy);
  box-shadow:0 4px 14px rgba(251,191,36,0.3);
  flex-shrink:0;
}
.nav__logo-name{
  font-size:clamp(18px,2.5vw,24px);
  font-weight:800;color:var(--white);
  letter-spacing:0.2px;
}
.nav__logo-name span{color:var(--yellow);}

/* Nav buttons */
.btn-login{
  font-size:14px;font-weight:800;
  padding:8px 20px;min-height:38px;min-width:100px;
  border:none;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,0.07);
  box-shadow:0 0 0 1.5px rgba(255,255,255,0.18);
  color:rgba(255,255,255,0.90);
  transition:background 0.18s,box-shadow 0.18s,color 0.18s;
  white-space:nowrap;
}
.btn-login:hover{
  background:rgba(255,255,255,0.13);
  box-shadow:0 0 0 1.5px rgba(255,255,255,0.36);
  color:#ffffff;
}
.btn-signup{
  font-size:14px;font-weight:800;
  padding:8px 20px;min-height:38px;min-width:100px;
  background:var(--yellow);
  border:none;
  border-radius:var(--r-pill);
  box-shadow:0 0 0 2px var(--yellow), 0 4px 14px rgba(255,140,97,0.22);
  color:#1A2238;
  transition:box-shadow 0.22s ease,background 0.22s ease,transform 0.22s ease-out;
  transform:translateY(0);
  white-space:nowrap;
}
.btn-signup:hover{
  background:var(--yellow);
  box-shadow:0 0 0 2px var(--yellow), 0 6px 18px rgba(255,140,97,0.28);
  transform:translateY(-2px);
}
.btn-signup:active{opacity:0.85;transform:translateY(0);}

/* Nav links */
.nav__links li a{
  font-size:14px;font-weight:700;
  color:rgba(255,255,255,0.80);
  white-space:nowrap;
  padding:8px 16px;
  border-radius:var(--r-pill);
  position:relative;
  transform:translateY(0);
  transition:color 0.2s ease-out, background 0.2s ease-out, transform 0.2s ease-out;
}
.nav__links li a:hover{
  color:#1c1917;
  background:#eef6ff;
  transform:translateY(-2px);
}

/* ══════════════════════════
   NAV — Auth state (guest ⇄ logged-in)
   Default = guest (Log in / Sign Up). On the live site add class
   "is-authed" to <html> from your session to reveal the user menu.
══════════════════════════ */
.nav__actions [data-auth="user"],
.nav__drawer-btns [data-auth="user"]{display:none;}
html.is-authed .nav__actions [data-auth="guest"],
html.is-authed .nav__drawer-btns [data-auth="guest"]{display:none;}
html.is-authed .nav__actions [data-auth="user"]{display:inline-flex;}
html.is-authed .nav__drawer-btns [data-auth="user"]{display:block;}

/* User menu wrapper — anchor for the dropdown */
.nav__user-menu{position:relative;align-items:center;}

/* Username trigger — avatar + name + caret */
.nav__user{
  display:inline-flex;align-items:center;gap:9px;
  padding:5px 12px 5px 5px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,0.07);
  box-shadow:0 0 0 1.5px rgba(255,255,255,0.18);
  color:rgba(255,255,255,0.90);
  transition:background 0.18s,box-shadow 0.18s;
  white-space:nowrap;
}
.nav__user:hover{
  background:rgba(255,255,255,0.13);
  box-shadow:0 0 0 1.5px rgba(255,255,255,0.36);
}
.nav__avatar{
  width:30px;height:30px;flex-shrink:0;
  border-radius:50%;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--yellow),var(--yellow-dk));
  color:var(--navy);
  font-size:13px;font-weight:800;
}
.nav__user-name{
  font-size:14px;font-weight:800;
  max-width:140px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.nav__user-caret{
  width:14px;height:14px;flex-shrink:0;
  opacity:0.7;
  transition:transform 0.2s ease;
}

/* Dropdown — navy gradient panel, hidden until hover / focus / open */
.nav__dropdown{
  position:absolute;top:calc(100% + 10px);right:0;
  min-width:210px;
  list-style:none;margin:0;padding:6px;
  background:linear-gradient(to bottom,var(--bg-top),var(--bg-bot));
  border:1px solid var(--card-bdr);
  border-radius:var(--r-md);
  box-shadow:0 14px 38px rgba(0,0,0,0.42);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity 0.18s ease,transform 0.18s ease,visibility 0.18s;
  z-index:320;
}
/* Invisible bridge over the 10px gap so hover never drops between chip → panel */
.nav__dropdown::before{
  content:'';position:absolute;
  top:-12px;left:0;right:0;height:12px;
}
/* Opens on hover (mouse), focus-within (keyboard + click, no JS needed),
   and aria-expanded (your JS on live). The ::before bridge below keeps hover
   alive across the gap so it can't flicker or mis-click onto the ad. */
.nav__user-menu:hover .nav__dropdown,
.nav__user-menu:focus-within .nav__dropdown,
.nav__user[aria-expanded="true"] + .nav__dropdown{
  opacity:1;visibility:visible;transform:translateY(0);
}
.nav__user-menu:hover .nav__user-caret,
.nav__user-menu:focus-within .nav__user-caret,
.nav__user[aria-expanded="true"] .nav__user-caret{
  transform:rotate(180deg);
}
.nav__dropdown a,
.nav__dropdown button{
  display:flex;align-items:center;gap:10px;
  width:100%;
  padding:10px 12px;border-radius:8px;
  font-size:14px;font-weight:700;
  color:var(--text-dim);
  text-align:left;
  transition:background 0.15s,color 0.15s;
}
.nav__dropdown a:hover,
.nav__dropdown button:hover{background:var(--card-bg);color:var(--white);}
.nav__dropdown svg{width:16px;height:16px;flex-shrink:0;opacity:0.85;}

/* Divider above Log out */
.nav__dropdown-divider{
  height:1px;margin:6px 8px;
  background:var(--card-bdr);
}

/* Hero CTA buttons */
.btn-start{
  font-size:clamp(13px,1.3vw,15px);font-weight:800;
  padding:clamp(10px,1.2vw,13px) clamp(20px,2vw,30px);
  background:transparent;color:var(--yellow);
  border:none;
  border-radius:var(--r-pill);
  box-shadow:0 0 0 2px var(--yellow);
  transition:box-shadow 0.18s,background 0.18s,color 0.18s;
  min-height:42px;
  display:inline-flex;align-items:center;gap:8px;
  white-space:nowrap;
  text-decoration:none;
}
.btn-start:hover{background:var(--yellow);color:#1c1917;box-shadow:0 0 0 2px var(--yellow);}
.btn-start:active{opacity:0.85;}
.btn-cert{
  font-size:clamp(13px,1.3vw,15px);font-weight:800;
  padding:clamp(10px,1.2vw,13px) clamp(20px,2vw,30px);
  background:transparent;color:var(--white);
  border:none;
  border-radius:var(--r-pill);
  box-shadow:0 0 0 2px rgba(255,255,255,0.35);
  transition:box-shadow 0.18s,background 0.18s;
  min-height:42px;
  display:inline-flex;align-items:center;gap:8px;
  white-space:nowrap;
  text-decoration:none;
}
.btn-cert:hover{box-shadow:0 0 0 2px rgba(255,255,255,0.7);background:rgba(255,255,255,0.08);}

/* ── Hero animations (moved from components.css) ── */
.circle__star{
  position:absolute;
  border-radius:50%;
  background:rgba(255,255,255,0.6);
  animation:twinkle var(--d,3s) ease-in-out infinite var(--delay,0s);
  pointer-events:none;
}
@keyframes twinkle{
  0%,100%{opacity:0.12;transform:scale(1);}
  50%{opacity:0.65;transform:scale(1.5);}
}
@keyframes floatCircle{
  0%,100%{transform:translateY(0);}
  50%{transform:translateY(-14px);}
}
@keyframes chip1{
  0%,100%{transform:translateY(0) rotate(-1deg);}
  50%{transform:translateY(-10px) rotate(1deg);}
}
@keyframes chip2{
  0%,100%{transform:translateY(0) rotate(1deg);}
  50%{transform:translateY(-8px) rotate(-1deg);}
}
@keyframes waveDrift{
  from{transform:scaleX(1) translateX(0);}
  to{transform:scaleX(1.04) translateX(-2%);}
}

/* ── GENTLE FLOAT — Practice! ── */
.float-in{
  display:inline-block;
  opacity:0;
  transform:translateY(16px);
  animation:gentleFloat 1.2s cubic-bezier(0.22,1,0.36,1) 0.6s forwards;
}
@keyframes gentleFloat{
  from{opacity:0;transform:translateY(16px);}
  to{opacity:1;transform:translateY(0);}
}

@keyframes drawerIn{
  from{opacity:0;transform:translateY(-8px);}
  to{opacity:1;transform:translateY(0);}
}

/* ══════════════════════════
   HERO — Typography & chip components (moved from components.css)
══════════════════════════ */

/* H1 — Nunito 700, not Fredoka, not 800 */
.hero__h1{
  font-size:clamp(28px,3.8vw,52px);
  font-weight:700;
  line-height:1.12;
  letter-spacing:-0.3px;
  color:#eef6ff;
  margin-bottom:clamp(16px,2.5vw,22px);
}
.hero__h1 .c-yellow{color:var(--yellow);}

/* Description */
.hero__desc{
  font-size:clamp(15px,1.5vw,18px);
  font-weight:600;
  color:var(--text-dim);
  line-height:1.9;
  max-width:100%;
  margin-bottom:clamp(28px,4vw,44px);
}

/* CTA buttons row */
.hero__btns{
  display:flex;flex-wrap:wrap;gap:20px;
  margin-bottom:clamp(48px,7vw,80px);
}

/* Floating chips — light blue bg pops against dark navy */
.hero__chip{
  position:absolute;
  background:#e8f4ff;
  border:1px solid rgba(79,134,247,0.2);
  border-radius:var(--r-md);
  padding:10px 14px;
  display:flex;align-items:center;gap:10px;
  box-shadow:0 8px 28px rgba(0,0,0,0.22);
  will-change:transform;
}
.hero__chip--wpm{
  top:6%;right:-6%;
  animation:chip1 5s ease-in-out infinite;
}
.hero__chip--acc{
  bottom:10%;left:-8%;
  animation:chip2 6.5s ease-in-out infinite;
}
.chip__icon{
  width:34px;height:34px;border-radius:9px;
  display:grid;place-items:center;
  font-size:16px;flex-shrink:0;
}
.chip__icon--blue{background:rgba(79,134,247,0.15);}
.chip__icon--green{background:rgba(52,211,153,0.18);}
.chip__icon--yellow{background:rgba(251,191,36,0.2);}
.chip__val{
  font-size:17px;font-weight:800;
  color:#1c1917;line-height:1;
}
.chip__lbl{
  font-size:10px;font-weight:700;
  text-transform:uppercase;letter-spacing:0.07em;
  color:#78604a;margin-top:2px;
}

/* Mobile chip tweaks */
@media(max-width:960px){
  .hero__chip{padding:8px 10px;gap:7px;}
  .chip__icon{width:28px;height:28px;font-size:13px;border-radius:7px;}
  .chip__val{font-size:14px;}
}
