/* ============================================================
   History — 12,000 years on one page
   ============================================================ */

:root{
  --bg:        #07090f;
  --bg-2:      #0c1018;
  --panel:     rgba(255,255,255,.045);
  --panel-2:   rgba(255,255,255,.07);
  --line:      rgba(255,255,255,.11);
  --ink:       #eef2f8;
  --ink-2:     #a5b0c2;
  --ink-3:     #6b7789;
  --gold:      #e6b450;
  --gold-2:    #f5d78e;
  --cyan:      #4cc9f0;
  --rose:      #e76f51;
  --radius:    16px;
  --mono:      ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
  --sans:      "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --serif:     "Playfair Display", "Iowan Old Style", Georgia, serif;
  --bg2:       var(--bg-2);
  --surface:   var(--bg-2);
  --surface-raised: #121824;
  --border:    var(--line);
  --fg-mid:    var(--ink-2);
  --fg-dim:    var(--ink-3);
  --accent:    var(--ink);
  --font-serif: var(--serif);
  --font-sans: var(--sans);
}

*{ box-sizing:border-box; margin:0; padding:0 }

html{ scroll-behavior:smooth; }

body{
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  line-height:1.65;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

::selection{ background:var(--gold); color:#111 }

/* scrollbar */
::-webkit-scrollbar{ width:10px; height:10px }
::-webkit-scrollbar-track{ background:#05070b }
::-webkit-scrollbar-thumb{ background:#232b3a; border-radius:8px }
::-webkit-scrollbar-thumb:hover{ background:var(--gold) }

/* reading-progress bar */
#progress{
  position:fixed; top:0; left:0; height:3px; width:0;
  background:linear-gradient(90deg,var(--gold),var(--rose),var(--cyan));
  z-index:200; box-shadow:0 0 14px rgba(230,180,80,.7);
  transition:width .1s linear;
}

/* starfield canvas */
#stars{
  position:fixed; inset:0; z-index:0; pointer-events:none; opacity:.75;
}

main, header, footer{ position:relative; z-index:1 }

/* ---------- shared ---------- */
.wrap{ width:min(1200px, 92vw); margin-inline:auto }

section{ padding: clamp(64px, 9vw, 130px) 0; scroll-margin-top:74px; }

.eyebrow{
  font-family:var(--mono); font-size:.72rem; letter-spacing:.32em;
  text-transform:uppercase; color:var(--gold); margin-bottom:14px;
  display:flex; align-items:center; gap:12px;
}
.eyebrow::after{ content:''; flex:1; height:1px; background:linear-gradient(90deg,var(--gold),transparent) }

h2.title{
  font-family:var(--serif); font-weight:700; line-height:1.08;
  font-size:clamp(2rem, 4.6vw, 3.4rem); letter-spacing:-.02em; margin-bottom:14px;
}
.lede{ color:var(--ink-2); max-width:62ch; font-size:1.03rem }

/* reveal on scroll */
.reveal{ opacity:0; transform:translateY(28px); transition:opacity .8s cubic-bezier(.16,1,.3,1), transform .8s cubic-bezier(.16,1,.3,1) }
.reveal.in{ opacity:1; transform:none }

/* ============================================================
   NAV
   ============================================================ */
nav{
  position:fixed; top:0; left:0; right:0; z-index:150;
  display:flex; align-items:center; justify-content:space-between;
  padding:14px clamp(16px,4vw,40px);
  backdrop-filter:blur(14px);
  background:linear-gradient(#07090fdd,#07090f66);
  border-bottom:1px solid transparent; transition:border-color .3s;
}
nav.scrolled{ border-bottom-color:var(--line) }
.brand{ display:flex; align-items:center; gap:11px; font-family:var(--serif); font-size:1.25rem;
        letter-spacing:.02em; text-decoration:none; color:inherit }
.brand b{ color:var(--gold); font-weight:700 }
.brand .logo{ width:34px; height:34px; display:block; flex:none }
.brand .logo svg{ width:100%; height:100%; display:block; overflow:visible }
.brand:hover .logo .lg-sand{ animation:sandflip 1.1s cubic-bezier(.6,0,.4,1) }
@keyframes sandflip{ 50%{ transform:rotate(180deg) } 100%{ transform:rotate(180deg) } }
.brand .logo .lg-sand{ transform-origin:32px 32px }
.lg-now{ animation:pulse 2.4s ease-in-out infinite }
@keyframes pulse{ 0%,100%{ opacity:1; transform:scale(1) } 50%{ opacity:.4; transform:scale(.7) } }
.lg-now{ transform-origin:center }

.navlinks{ display:flex; gap:6px; flex-wrap:wrap }
.navlinks a{
  color:var(--ink-2); text-decoration:none; font-size:.83rem; padding:7px 13px;
  border-radius:999px; transition:.25s; letter-spacing:.02em;
}
.navlinks a:hover{ color:var(--ink); background:var(--panel-2) }
@media(max-width:820px){ .navlinks{ display:none } }

/* ============================================================
   HERO
   ============================================================ */
#hero{
  min-height:100svh; display:grid; place-items:center; text-align:center;
  padding:110px 20px 70px; position:relative; overflow:hidden;
}
#hero::before{
  content:''; position:absolute; width:120vmax; height:120vmax; left:50%; top:45%;
  transform:translate(-50%,-50%);
  background:radial-gradient(circle, rgba(230,180,80,.10), rgba(76,201,240,.05) 35%, transparent 62%);
  animation:spin 90s linear infinite;
}
@keyframes spin{ to{ transform:translate(-50%,-50%) rotate(360deg) } }

.hero-kicker{
  font-family:var(--mono); font-size:.74rem; letter-spacing:.4em; text-transform:uppercase;
  color:var(--gold); margin-bottom:24px;
}
#hero h1{
  font-family:var(--serif); font-weight:900;
  font-size:clamp(3.6rem, 15vw, 12rem); line-height:.86; letter-spacing:-.045em;
  background:linear-gradient(180deg,#fff 20%, var(--gold-2) 62%, #96702a 100%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
  filter:drop-shadow(0 12px 40px rgba(230,180,80,.22));
}
.hero-sub{ color:var(--ink-2); max-width:60ch; margin:26px auto 0; font-size:clamp(.98rem,1.6vw,1.15rem) }

.counter{
  font-family:var(--mono); font-size:clamp(1.6rem,5.5vw,3rem); color:var(--gold-2);
  margin-top:34px; letter-spacing:.02em; font-variant-numeric:tabular-nums;
  text-shadow:0 0 30px rgba(230,180,80,.35);
}
.counter small{ display:block; font-size:.34em; letter-spacing:.3em; color:var(--ink-3); margin-top:8px; text-transform:uppercase }

.hero-stats{ display:flex; gap:clamp(18px,4vw,54px); justify-content:center; flex-wrap:wrap; margin-top:44px }
.hstat b{ display:block; font-family:var(--mono); font-size:clamp(1.1rem,2.4vw,1.7rem); color:#fff }
.hstat span{ font-size:.72rem; letter-spacing:.16em; text-transform:uppercase; color:var(--ink-3) }

.scroll-hint{ margin-top:56px; color:var(--ink-3); font-size:.72rem; letter-spacing:.3em; text-transform:uppercase }
.scroll-hint::after{
  content:''; display:block; width:1px; height:44px; margin:14px auto 0;
  background:linear-gradient(var(--gold),transparent); animation:drop 1.9s ease-in-out infinite;
}
@keyframes drop{ 0%{ opacity:0; transform:scaleY(.2) } 45%{ opacity:1 } 100%{ opacity:0; transform:scaleY(1) translateY(14px) } }

/* ============================================================
   TIME MACHINE
   ============================================================ */
#machine{ background:linear-gradient(180deg,transparent, rgba(76,201,240,.045), transparent) }

.machine-box{
  background:var(--panel); border:1px solid var(--line); border-radius:22px;
  padding:clamp(20px,3.4vw,38px); backdrop-filter:blur(10px); margin-top:34px;
  box-shadow:0 30px 80px -40px rgba(0,0,0,.9);
}
.machine-top{ display:flex; align-items:center; justify-content:space-between; gap:20px; flex-wrap:wrap }
.year-read{
  font-family:var(--mono); font-size:clamp(2.1rem,6.4vw,4.2rem); font-weight:700;
  color:#fff; line-height:1; font-variant-numeric:tabular-nums;
}
.year-read em{ font-style:normal; font-size:.34em; color:var(--gold); letter-spacing:.14em; margin-left:10px }
.era-chip{
  display:inline-flex; align-items:center; gap:9px; padding:7px 16px; border-radius:999px;
  font-size:.8rem; letter-spacing:.1em; text-transform:uppercase; font-family:var(--mono);
  border:1px solid currentColor; transition:.4s;
}
.era-chip i{ width:8px; height:8px; border-radius:50%; background:currentColor; box-shadow:0 0 10px currentColor }

/* slider */
.slider-wrap{ margin:32px 0 10px; position:relative }
input[type=range]{
  -webkit-appearance:none; appearance:none; width:100%; height:8px; border-radius:99px;
  background:linear-gradient(90deg,#8d7b68,#c08552,#6b7a8f,#c9a227,#7b5ea7,#2a9d8f,#e76f51,#e63946,#4cc9f0);
  outline:none; cursor:grab;
}
input[type=range]:active{ cursor:grabbing }
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none; width:26px; height:26px; border-radius:50%;
  background:#fff; border:3px solid var(--gold); cursor:grab;
  box-shadow:0 0 0 6px rgba(230,180,80,.16), 0 0 24px rgba(230,180,80,.7);
  transition:transform .15s;
}
input[type=range]::-webkit-slider-thumb:hover{ transform:scale(1.16) }
input[type=range]::-moz-range-thumb{
  width:24px; height:24px; border-radius:50%; background:#fff; border:3px solid var(--gold);
  box-shadow:0 0 0 6px rgba(230,180,80,.16);
}
.ticks{ display:flex; justify-content:space-between; margin-top:12px; font-family:var(--mono); font-size:.66rem; color:var(--ink-3) }

.machine-grid{ display:grid; grid-template-columns:auto 1fr; gap:clamp(18px,3vw,34px); margin-top:30px; align-items:start }
@media(max-width:700px){ .machine-grid{ grid-template-columns:1fr } }

.flag-card{ text-align:center }
.flag-card svg{
  width:190px; height:126px; border-radius:8px; display:block;
  box-shadow:0 18px 42px -14px rgba(0,0,0,.85), 0 0 0 1px rgba(255,255,255,.14);
  animation:wave 5s ease-in-out infinite;
}
@keyframes wave{ 0%,100%{ transform:perspective(700px) rotateY(-9deg) rotateX(2deg) } 50%{ transform:perspective(700px) rotateY(9deg) rotateX(-2deg) } }
.flag-card .fname{ margin-top:14px; font-family:var(--serif); font-size:1.05rem; color:var(--gold-2) }
.flag-card .fnote{ font-size:.66rem; color:var(--ink-3); letter-spacing:.08em; text-transform:uppercase; margin-top:4px }

.power-name{ font-family:var(--serif); font-size:clamp(1.4rem,3.2vw,2.1rem); line-height:1.15 }
.power-sub{ color:var(--ink-3); font-family:var(--mono); font-size:.78rem; letter-spacing:.08em; margin-top:6px }
.power-fact{ color:var(--ink-2); margin-top:14px; font-size:.96rem }

.metrics{ display:grid; grid-template-columns:repeat(auto-fit,minmax(128px,1fr)); gap:12px; margin-top:22px }
.metric{ background:var(--panel-2); border:1px solid var(--line); border-radius:12px; padding:13px 15px }
.metric b{ display:block; font-family:var(--mono); font-size:1.22rem; color:var(--gold-2); font-variant-numeric:tabular-nums }
.metric span{ font-size:.63rem; letter-spacing:.15em; text-transform:uppercase; color:var(--ink-3) }

.alive{ margin-top:26px; padding-top:22px; border-top:1px solid var(--line) }
.alive h4{ font-size:.68rem; letter-spacing:.22em; text-transform:uppercase; color:var(--ink-3); margin-bottom:12px; font-weight:500 }
.alive-list{ display:flex; flex-wrap:wrap; gap:8px }
.pill{
  background:var(--panel-2); border:1px solid var(--line); border-radius:999px;
  padding:5px 13px; font-size:.79rem; color:var(--ink-2); cursor:pointer; transition:.2s;
  animation:pop .35s cubic-bezier(.34,1.56,.64,1) backwards;
}
.pill:hover{ background:var(--gold); color:#111; border-color:var(--gold); transform:translateY(-2px) }
.pill.none{ cursor:default; opacity:.5 }
.pill.none:hover{ background:var(--panel-2); color:var(--ink-2); transform:none; border-color:var(--line) }
@keyframes pop{ from{ opacity:0; transform:scale(.8) } }

/* ============================================================
   POWER RACE
   ============================================================ */
.race{ margin-top:38px; display:flex; flex-direction:column; gap:11px }
.bar-row{ display:grid; grid-template-columns:60px 1fr; gap:14px; align-items:center }
.bar-flag svg{ width:56px; height:37px; border-radius:4px; box-shadow:0 0 0 1px rgba(255,255,255,.16) }
.bar-body{ position:relative }
.bar-label{ display:flex; justify-content:space-between; font-size:.84rem; margin-bottom:5px; gap:12px }
.bar-label span:last-child{ font-family:var(--mono); color:var(--gold-2); white-space:nowrap }
.bar-track{ height:11px; background:rgba(255,255,255,.06); border-radius:99px; overflow:hidden }
.bar-fill{
  height:100%; width:0; border-radius:99px;
  background:linear-gradient(90deg,var(--gold),var(--rose));
  transition:width 1.5s cubic-bezier(.16,1,.3,1);
  box-shadow:0 0 18px -3px var(--gold);
}
.bar-row:nth-child(1) .bar-fill{ background:linear-gradient(90deg,#f5d78e,#e6b450) }
.bar-row:nth-child(2) .bar-fill{ background:linear-gradient(90deg,#cfd8e3,#96a3b5) }
.bar-row:nth-child(3) .bar-fill{ background:linear-gradient(90deg,#e0a16a,#b5713a) }

.toggle-row{ display:flex; gap:8px; margin-top:26px; flex-wrap:wrap }
.tbtn{
  background:var(--panel-2); border:1px solid var(--line); color:var(--ink-2);
  padding:9px 18px; border-radius:999px; cursor:pointer; font-size:.82rem;
  font-family:var(--sans); transition:.25s;
}
.tbtn:hover{ color:var(--ink); border-color:var(--gold) }
.tbtn.on{ background:var(--gold); color:#111; border-color:var(--gold); font-weight:600 }

/* ============================================================
   SUCCESSION STRIP (dominant power over time)
   ============================================================ */
.strip{ margin-top:34px; overflow-x:auto; padding-bottom:16px }
.strip-inner{ display:flex; gap:12px; min-width:max-content; padding:4px }
.reign{
  min-width:190px; background:var(--panel); border:1px solid var(--line); border-radius:14px;
  padding:16px; transition:.3s; cursor:pointer;
}
.reign:hover{ transform:translateY(-6px); border-color:var(--gold); background:var(--panel-2) }
.reign svg{ width:100%; height:62px; border-radius:6px; box-shadow:0 0 0 1px rgba(255,255,255,.12) }
.reign h5{ font-family:var(--serif); font-size:1rem; margin-top:12px; font-weight:600 }
.reign p{ font-family:var(--mono); font-size:.7rem; color:var(--ink-3); margin-top:3px }
.reign .bignum{ font-family:var(--mono); font-size:.78rem; color:var(--gold); margin-top:8px }

/* ============================================================
   TIMELINE
   ============================================================ */
#timeline{ background:linear-gradient(180deg,transparent,rgba(230,180,80,.035),transparent) }
.tl{ position:relative; margin-top:48px; padding-left:34px }
.tl::before{
  content:''; position:absolute; left:9px; top:0; bottom:0; width:2px;
  background:linear-gradient(180deg,transparent,var(--line) 4%,var(--line) 96%,transparent);
}
.tl-line{
  position:absolute; left:9px; top:0; width:2px; height:0;
  background:linear-gradient(180deg,var(--gold),var(--rose),var(--cyan));
  box-shadow:0 0 14px var(--gold); transition:height .15s linear;
}
.ev{ position:relative; padding:0 0 40px 22px }
.ev::before{
  content:''; position:absolute; left:-31px; top:9px; width:12px; height:12px; border-radius:50%;
  background:var(--bg); border:2px solid var(--ink-3); transition:.4s;
}
.ev.in::before{ border-color:var(--gold); background:var(--gold); box-shadow:0 0 0 5px rgba(230,180,80,.16), 0 0 18px var(--gold) }
.ev-year{ font-family:var(--mono); font-size:.8rem; color:var(--gold); letter-spacing:.08em }
.ev h3{ font-family:var(--serif); font-size:clamp(1.15rem,2.4vw,1.55rem); margin:4px 0 7px; font-weight:600 }
.ev h3 .ic{ margin-right:10px }
.ev p{ color:var(--ink-2); max-width:70ch; font-size:.95rem }

.era-head{
  position:sticky; top:62px; z-index:20; margin:10px 0 26px -34px;
  padding:11px 20px; border-radius:0 999px 999px 0; backdrop-filter:blur(12px);
  background:rgba(10,13,20,.9); border:1px solid var(--line); border-left:4px solid;
  display:inline-flex; align-items:baseline; gap:14px; flex-wrap:wrap;
}
.era-head b{ font-family:var(--serif); font-size:1.15rem }
.era-head i{ font-style:normal; font-family:var(--mono); font-size:.72rem; color:var(--ink-3) }
.era-head small{ display:block; width:100%; color:var(--ink-3); font-size:.8rem; max-width:70ch }

/* ============================================================
   FIGURES
   ============================================================ */
.filters{ display:flex; gap:8px; flex-wrap:wrap; margin:26px 0 34px }
.grid-figs{ display:grid; grid-template-columns:repeat(auto-fill,minmax(215px,1fr)); gap:18px }

.fig{
  background:var(--panel); border:1px solid var(--line); border-radius:var(--radius);
  overflow:hidden; cursor:pointer; position:relative;
  transition:transform .4s cubic-bezier(.16,1,.3,1), border-color .3s, box-shadow .4s;
}
.fig:hover{ transform:translateY(-8px); border-color:var(--gold); box-shadow:0 26px 50px -22px rgba(0,0,0,.9) }
.fig-img{
  aspect-ratio:1/1.12; background:linear-gradient(150deg,#151b26,#0b0f16); position:relative; overflow:hidden;
  display:grid; place-items:center;
}
/* generated portrait — always present, so a card is never empty */
.fig-fallback{ position:absolute; inset:0; width:100%; height:100% }
.fig-fallback svg{ width:100%; height:100%; display:block }
/* real portrait fades in on top of the generated one once Wikipedia answers */
.fig-img img{
  position:absolute; inset:0; width:100%; height:100%; object-fit:cover; object-position:center 18%;
  filter:grayscale(.3) contrast(1.05); transition:opacity .6s ease, filter .5s, transform .5s; opacity:0;
}
.fig-img img.loaded{ opacity:1 }
.fig:hover .fig-img img.loaded{ filter:none; transform:scale(1.07) }
.fig-img.loading::before{
  content:''; position:absolute; inset:0; z-index:3; pointer-events:none;
  background:linear-gradient(100deg,transparent 20%,rgba(255,255,255,.07) 45%,transparent 70%);
  background-size:220% 100%; animation:shimmer 1.5s linear infinite;
}
@keyframes shimmer{ to{ background-position:-220% 0 } }
.fig-img::after{ content:''; position:absolute; inset:0; z-index:2;
  background:linear-gradient(transparent 45%, rgba(7,9,15,.92)) }
.fig-era{
  position:absolute; top:10px; left:10px; z-index:4; font-family:var(--mono);
  font-size:.6rem; letter-spacing:.12em; text-transform:uppercase;
  padding:4px 9px; border-radius:99px; background:rgba(7,9,15,.75); border:1px solid currentColor;
}
.fig-meta{ padding:13px 15px 16px; position:relative; margin-top:-46px; z-index:2 }
.fig-meta h4{ font-family:var(--serif); font-size:1.06rem; line-height:1.25; font-weight:600 }
.fig-meta .dates{ font-family:var(--mono); font-size:.71rem; color:var(--gold); margin-top:4px }
.fig-meta .role{ font-size:.76rem; color:var(--ink-3); margin-top:3px }

.loadmore{ display:block; margin:34px auto 0 }

/* ============================================================
   MODAL
   ============================================================ */
.modal{
  position:fixed; inset:0; z-index:300; display:none; place-items:center; padding:20px;
  background:rgba(3,5,9,.82); backdrop-filter:blur(9px);
}
.modal.open{ display:grid; animation:fade .3s ease }
@keyframes fade{ from{ opacity:0 } }
.modal-card{
  width:min(760px,100%); max-height:88vh; overflow-y:auto;
  background:linear-gradient(160deg,#121824,#0a0e15); border:1px solid var(--line);
  border-radius:20px; padding:clamp(20px,3.6vw,34px); position:relative;
  animation:rise .45s cubic-bezier(.16,1,.3,1);
}
@keyframes rise{ from{ opacity:0; transform:translateY(30px) scale(.97) } }
.modal-close{
  position:absolute; top:14px; right:14px; width:36px; height:36px; border-radius:50%;
  background:var(--panel-2); border:1px solid var(--line); color:var(--ink-2);
  cursor:pointer; font-size:1.15rem; line-height:1; transition:.25s;
}
.modal-close:hover{ background:var(--rose); color:#fff; border-color:var(--rose); transform:rotate(90deg) }
.modal-head{ display:flex; gap:20px; align-items:flex-start; flex-wrap:wrap }
.modal-head img{ width:118px; height:142px; object-fit:cover; border-radius:12px; border:1px solid var(--line) }
.modal-head #mImg svg{ width:100%; height:100%; display:block }
.modal-head h3{ font-family:var(--serif); font-size:clamp(1.5rem,3.4vw,2.1rem); line-height:1.15 }
.modal-head .dates{ font-family:var(--mono); color:var(--gold); font-size:.85rem; margin-top:5px }
.modal-head .role{ color:var(--ink-3); font-size:.85rem; margin-top:2px }
.modal-body{ margin-top:22px; color:var(--ink-2); font-size:.97rem }
.modal-body .why{
  border-left:3px solid var(--gold); padding:9px 0 9px 15px; margin-bottom:18px;
  color:var(--gold-2); font-family:var(--serif); font-size:1.06rem; font-style:italic;
}
.modal-body .src{ display:inline-block; margin-top:20px; color:var(--cyan); font-size:.83rem; text-decoration:none; border-bottom:1px dotted }
.modal-body .src:hover{ color:var(--gold) }
.skeleton{ height:13px; background:linear-gradient(90deg,#1a2130,#26303f,#1a2130); background-size:200% 100%; border-radius:4px; margin-bottom:10px; animation:sh 1.3s linear infinite }
@keyframes sh{ to{ background-position:-200% 0 } }
.context-line{ font-size:.82rem; color:var(--ink-3); margin-top:16px; padding-top:14px; border-top:1px solid var(--line) }

/* ============================================================
   QUIZ
   ============================================================ */
#quiz .quiz-card{
  background:var(--panel); border:1px solid var(--line); border-radius:20px;
  padding:clamp(22px,3.6vw,40px); margin-top:32px; max-width:760px;
}
.q-text{ font-family:var(--serif); font-size:clamp(1.15rem,2.6vw,1.6rem); line-height:1.35; margin-bottom:24px }
.q-opts{ display:grid; gap:10px }
.q-opt{
  text-align:left; background:var(--panel-2); border:1px solid var(--line); color:var(--ink);
  padding:14px 18px; border-radius:12px; cursor:pointer; font-size:.95rem;
  font-family:var(--sans); transition:.22s;
}
.q-opt:hover:not(:disabled){ border-color:var(--gold); transform:translateX(6px) }
.q-opt.right{ background:rgba(42,157,143,.22); border-color:#2a9d8f }
.q-opt.wrong{ background:rgba(231,111,81,.2); border-color:var(--rose) }
.q-foot{ display:flex; justify-content:space-between; align-items:center; margin-top:22px; gap:14px; flex-wrap:wrap }
.q-score{ font-family:var(--mono); color:var(--gold); font-size:.85rem }
.q-expl{ margin-top:16px; color:var(--ink-2); font-size:.9rem; display:none }
.q-expl.show{ display:block; animation:fade .4s }

.quiz-result{
  position:relative; overflow:hidden; margin-top:26px; border:1px solid rgba(230,180,80,.38);
  border-radius:18px; padding:clamp(20px,3vw,30px);
  background:
    radial-gradient(circle at 14% 10%,rgba(230,180,80,.16),transparent 34%),
    linear-gradient(145deg,rgba(255,255,255,.055),rgba(255,255,255,.018));
  animation:quiz-result-in .7s cubic-bezier(.16,1,.3,1) both;
}
.quiz-result::after{
  content:''; position:absolute; inset:0; pointer-events:none;
  background:linear-gradient(110deg,transparent 32%,rgba(245,215,142,.12) 48%,transparent 64%);
  transform:translateX(-110%); animation:quiz-result-shine 1.1s .3s ease-out both;
}
.quiz-result-layout{ position:relative; z-index:1; display:grid; grid-template-columns:150px minmax(0,1fr); gap:26px; align-items:center }
.quiz-score-orbit{
  --score-angle:0deg; position:relative; display:grid; width:142px; aspect-ratio:1; place-content:center; place-items:center;
  border-radius:50%; background:conic-gradient(var(--gold) var(--score-angle),rgba(255,255,255,.08) 0);
  box-shadow:0 0 42px rgba(230,180,80,.13); animation:quiz-score-fill 1.05s .2s cubic-bezier(.16,1,.3,1) both;
}
.quiz-score-orbit::before{ content:''; position:absolute; width:116px; aspect-ratio:1; border:1px solid var(--line); border-radius:50%; background:#0a0e15 }
.quiz-score-orbit strong,.quiz-score-orbit span{ position:relative; z-index:1 }
.quiz-score-orbit strong{ color:var(--gold-2); font:700 3rem/.9 var(--serif) }
.quiz-score-orbit span{ margin-top:7px; color:var(--ink-3); font:600 .68rem/1 var(--mono); letter-spacing:.12em }
.quiz-result-kicker{ color:var(--gold); font:600 .66rem/1 var(--mono); letter-spacing:.18em; text-transform:uppercase }
.quiz-result h3{ margin-top:9px; font:700 clamp(1.45rem,3vw,2rem)/1.1 var(--serif) }
.quiz-result-copy{ margin-top:9px; color:var(--ink-2); font-size:.9rem }
.quiz-result-stats{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:9px; margin-top:18px }
.quiz-result-stat{ border-top:1px solid var(--line); padding-top:11px }
.quiz-result-stat strong{ display:block; color:var(--ink); font:600 .95rem/1.2 var(--sans) }
.quiz-result-stat span{ display:block; margin-top:5px; color:var(--ink-3); font:600 .61rem/1 var(--mono); letter-spacing:.11em; text-transform:uppercase }
.quiz-result-actions{ position:relative; z-index:1; display:flex; flex-wrap:wrap; gap:9px; margin-top:22px; padding-top:18px; border-top:1px solid var(--line) }
.quiz-result-action{ display:inline-flex; min-height:42px; align-items:center; gap:9px; border:1px solid var(--line); border-radius:10px; padding:0 15px; background:var(--panel-2); color:var(--ink); font:600 .75rem/1 var(--sans); cursor:pointer; transition:border-color .2s ease,background .2s ease,transform .2s ease }
.quiz-result-action:hover,.quiz-result-action:focus-visible{ border-color:var(--gold); background:rgba(230,180,80,.1); outline:none; transform:translateY(-2px) }
.quiz-result-action svg{ width:16px; height:16px; fill:none; stroke:currentColor; stroke-width:1.7; stroke-linecap:round; stroke-linejoin:round }
.quiz-share-status{ position:relative; z-index:1; min-height:18px; margin-top:10px; color:var(--cyan); font-size:.72rem }
.quiz-sparks{ position:absolute; inset:0; pointer-events:none }
.quiz-sparks i{ position:absolute; width:5px; height:5px; border-radius:50%; background:var(--gold); opacity:0; animation:quiz-spark 1.2s ease-out both }
.quiz-sparks i:nth-child(1){ left:9%; top:18%; animation-delay:.12s }
.quiz-sparks i:nth-child(2){ left:28%; top:8%; animation-delay:.24s }
.quiz-sparks i:nth-child(3){ right:16%; top:14%; animation-delay:.18s }
.quiz-sparks i:nth-child(4){ right:8%; bottom:22%; animation-delay:.32s }
.quiz-sparks i:nth-child(5){ left:18%; bottom:12%; animation-delay:.4s }
@keyframes quiz-result-in{ from{ opacity:0; transform:translateY(24px) scale(.98) } }
@keyframes quiz-result-shine{ to{ transform:translateX(110%) } }
@keyframes quiz-score-fill{ from{ --score-angle:0deg } to{ --score-angle:var(--score-target) } }
@keyframes quiz-spark{ 0%{ opacity:0; transform:scale(.2) } 35%{ opacity:.9 } 100%{ opacity:0; transform:translateY(-28px) scale(1.8) } }

@property --score-angle{ syntax:'<angle>'; inherits:false; initial-value:0deg }

@media (max-width:620px){
  .quiz-result-layout{ grid-template-columns:1fr; gap:20px }
  .quiz-score-orbit{ width:126px; justify-self:center }
  .quiz-result-stats{ grid-template-columns:1fr }
  .quiz-result-action{ flex:1; justify-content:center }
}

/* ============================================================
   CERTIFICATE
   ============================================================ */
.cert-card{ width:min(880px,100%) }
.cert-h{ font-family:var(--serif); font-size:clamp(1.4rem,3vw,2rem); margin-bottom:4px }
.cert-p{ color:var(--ink-3); font-size:.9rem; margin-bottom:20px }

.cert-field{ display:block; margin-bottom:18px }
.cert-field span{ display:block; font-size:.68rem; letter-spacing:.2em; text-transform:uppercase;
  color:var(--ink-3); margin-bottom:8px }
.cert-field input{
  width:100%; background:var(--panel-2); border:1px solid var(--line); border-radius:11px;
  padding:13px 16px; color:var(--ink); font-family:var(--sans); font-size:1rem; outline:none;
  transition:border-color .25s;
}
.cert-field input:focus{ border-color:var(--gold); background:rgba(230,180,80,.06) }
.cert-hint{ display:block; margin-top:8px; font-size:.76rem; color:var(--ink-3) }
.cert-hint.warn{ color:var(--gold) }

#certDownload:disabled{ opacity:.4; cursor:not-allowed; background:var(--panel-2);
  color:var(--ink-3); border-color:var(--line); font-weight:400 }

.cert-preview{
  border-radius:12px; overflow:hidden; border:1px solid var(--line);
  background:#0a0d14; line-height:0;
}
.cert-preview canvas{ width:100%; height:auto; display:block }

.cert-actions{ display:flex; align-items:center; justify-content:space-between; gap:16px;
  margin-top:20px; flex-wrap:wrap }
.cert-id{ font-family:var(--mono); font-size:.68rem; color:var(--ink-3); letter-spacing:.06em }

/* the unlock panel that replaces the quiz when you pass */
.cert-unlock{ margin-top:20px; padding:20px; border:1px dashed var(--gold);
  border-radius:14px; background:rgba(230,180,80,.06); animation:rise .5s cubic-bezier(.16,1,.3,1) }
.cert-unlock h4{ font-family:var(--serif); font-size:1.2rem; color:var(--gold-2); margin-bottom:6px }
.cert-unlock p{ color:var(--ink-2); font-size:.9rem; margin-bottom:15px }
.cert-locked{ margin-top:18px; color:var(--ink-3); font-size:.87rem }

/* ============================================================
   FOOTER
   ============================================================ */
footer{
  border-top:1px solid var(--line); padding:52px 0 40px; margin-top:40px;
  color:var(--ink-3); font-size:.85rem;
}
footer a{ color:var(--ink-2) }
.foot-grid{ display:flex; justify-content:space-between; gap:24px; flex-wrap:wrap }
.foot-note{ max-width:52ch }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important }
  html{ scroll-behavior:auto }
}