/* ============================================================
   KORE SLEEK DESIGN SYSTEM (2026-10-15 redo)
   Shared stylesheet for thekorevision.com.
   Sleek only: dark matte premium surfaces everywhere,
   iridescent teal-to-gold accents from the 2026 logo,
   restrained gold trim, glass panels, generous negative
   space. No em dashes anywhere in copy.
   ============================================================ */

/* ---------- 1. TOKENS ---------- */
:root{
  --bg:#08090c;
  --bg-2:#0d0f14;
  --ink:#eef1f6;
  --muted:#9aa5b5;
  --quiet:#6e7787;
  --line:rgba(238,241,246,.15);
  --line-soft:rgba(238,241,246,.08);
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(11,13,18,.88);
  --night:#07090d;
  --night-2:#0d1119;
  --night-ink:#f2f4f7;
  --night-muted:#a7b0bf;
  --night-line:rgba(242,244,247,.16);
  --gold:#c9a227;
  --gold-deep:#e9c86a;
  --accent:#2fd4c4;
  /* restrained iridescence, used sparingly */
  --irid:linear-gradient(115deg,#2fd4c4 0%,#7dd3fc 34%,#a5b4fc 58%,#e9c86a 84%,#f5d78a 100%);
  --glow:0 0 0 1px rgba(47,212,196,.35),0 8px 40px rgba(47,212,196,.14);
  --shadow:0 24px 70px rgba(0,0,0,.55);
  --shadow-sm:0 8px 28px rgba(0,0,0,.45);
  --max:1200px;
  --radius:18px;
  --radius-sm:12px;
  --ease:cubic-bezier(.22,.8,.24,1);
  --font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --font-d:"Space Grotesk","Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:ui-monospace,"SF Mono","Cascadia Code",Menlo,Consolas,monospace;
}

/* ---------- 2. RESET / BASE ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;min-width:320px;overflow-x:clip;
  background:var(--bg);color:var(--ink);
  font-family:var(--font);font-size:16px;line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img,video{display:block;max-width:100%}
a{color:inherit}
button,input,select,textarea{font:inherit}
button,a{-webkit-tap-highlight-color:transparent}
::selection{background:rgba(201,162,39,.35)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
h1,h2,h3,h4{margin:0;font-family:var(--font-d);font-weight:600;letter-spacing:-.025em;line-height:1.05;text-wrap:balance}
h1{font-size:clamp(44px,7.4vw,96px)}
h2{font-size:clamp(34px,4.8vw,62px)}
h3{font-size:clamp(22px,2.6vw,32px)}
p{margin:0}
.wrap{width:min(calc(100% - 48px),var(--max));margin-inline:auto}
.mono{font-family:var(--mono)}
.hidden-visually{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.text-center{text-align:center}
.muted{color:var(--muted)}

/* ---------- 3. TOPBAR / NAV ---------- */
.topbar{
  position:fixed;inset:0 0 auto;z-index:60;
  border-bottom:1px solid transparent;
  transition:background .3s,border-color .3s,backdrop-filter .3s;
}
.topbar.scrolled{
  background:var(--glass-strong);
  border-bottom-color:var(--line-soft);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
}
.topbar-inner{min-height:66px;display:flex;align-items:center;gap:24px}
.brand-lockup{margin-right:auto;display:flex;align-items:center;gap:12px;text-decoration:none}
.brand-word{font-family:var(--font-d);font-weight:700;font-size:17px;letter-spacing:.02em}
.chapter{
  font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--quiet);white-space:nowrap;
}
.chapter b{color:var(--gold-deep);font-weight:500}
.nav-links{display:flex;align-items:center;gap:22px}
.nav-links a{
  font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  text-decoration:none;color:var(--muted);
}
.nav-links a:hover{color:var(--ink)}
.nav-links a.active{color:var(--ink);box-shadow:inset 0 -2px 0 var(--gold)}
.nav-links .join{
  padding:10px 18px;border:1px solid var(--gold);border-radius:999px;
  color:var(--gold-deep);background:transparent;
}
.nav-links .join:hover{background:var(--gold);border-color:var(--gold);color:#fff}
.menu-button{
  display:none;border:0;background:none;color:var(--ink);padding:10px;cursor:pointer;
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;
}

/* ---------- 4. HERO (light + dark cinematic) ---------- */
.hero{position:relative;overflow:clip;background:var(--bg);padding:clamp(150px,22vh,210px) 0 clamp(80px,10vw,130px)}
.hero.dark{background:var(--night);color:var(--night-ink)}
.hero-media{position:absolute;inset:0;z-index:0;pointer-events:none}
.hero-media img,.hero-media video{width:100%;height:100%;object-fit:cover;opacity:.5}
.hero.dark .hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,9,13,.55),rgba(7,9,13,.86));
}
.hero-inner{position:relative;z-index:1}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:12px;
  font-family:var(--mono);font-size:11px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--gold-deep);margin-bottom:22px;
}
.hero.dark .hero-eyebrow{color:#e9c86a}
.hero-eyebrow::before{content:"";width:40px;height:1px;background:var(--gold)}
.hero h1{max-width:16ch}
.hero-lead{max-width:640px;margin-top:24px;font-size:clamp(17px,1.8vw,21px);color:var(--muted)}
.hero.dark .hero-lead{color:var(--night-muted)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.hero-note{
  margin-top:28px;max-width:620px;padding-left:18px;border-left:1px solid var(--gold);
  font-size:13px;color:var(--muted);
}
.hero.dark .hero-note{color:var(--night-muted)}
.hero-glow{ /* soft light accent, dark heroes only */
  position:absolute;z-index:0;width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle,rgba(125,211,252,.16),transparent 65%);
  filter:blur(10px);pointer-events:none;
}
/* iridescent headline accent, use on one short phrase only */
.irid{
  background:var(--irid);-webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ---------- 5. SECTIONS ---------- */
.section{position:relative;padding:clamp(88px,11vw,150px) 0;scroll-margin-top:64px}
.section.tight{padding:clamp(56px,7vw,96px) 0}
.section.dark{background:var(--night);color:var(--night-ink)}
.section.tint{background:var(--bg-2)}
.section-head{max-width:820px;margin-bottom:clamp(44px,6vw,72px)}
.eyebrow{
  margin:0 0 16px;font-family:var(--mono);font-size:11px;font-weight:500;
  letter-spacing:.24em;text-transform:uppercase;color:var(--gold-deep);
}
.section.dark .eyebrow{color:#e9c86a}
.lead{margin-top:20px;font-size:clamp(17px,1.7vw,20px);color:var(--muted);max-width:720px}
.section.dark .lead{color:var(--night-muted)}
.rule{ /* hairline divider */
  border:0;height:1px;background:var(--line);margin:0;
}
.section.dark .rule{background:var(--night-line)}
.rule.irid{background:linear-gradient(90deg,transparent,rgba(165,180,252,.55),transparent)}

/* ---------- 6. CARDS (glass) ---------- */
.card{
  background:var(--glass);border:1px solid var(--line-soft);border-radius:var(--radius);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-sm);padding:clamp(24px,3.4vw,38px);
}
.card.solid{background:#10131a;backdrop-filter:none;-webkit-backdrop-filter:none}
.section.dark .card{background:rgba(255,255,255,.05);border-color:var(--night-line)}
.card h3{margin-bottom:12px}
.card p{color:var(--muted);font-size:15px}
.section.dark .card p{color:var(--night-muted)}
.card-kicker{
  display:block;margin-bottom:14px;font-family:var(--mono);font-size:10px;
  letter-spacing:.18em;text-transform:uppercase;color:var(--gold-deep);
}
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.stat-num{
  font-family:var(--font-d);font-weight:700;letter-spacing:-.03em;
  font-size:clamp(34px,4vw,54px);line-height:1;
}
.stat-label{margin-top:10px;font-size:13px;color:var(--muted)}

/* ---------- 7. BUTTONS ---------- */
.button{
  min-height:52px;display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:0 26px;border-radius:999px;border:1px solid var(--line);
  background:transparent;color:var(--ink);text-decoration:none;cursor:pointer;
  font-size:14px;font-weight:600;letter-spacing:.01em;
  transition:transform .25s var(--ease),box-shadow .25s,background .25s,color .25s,border-color .25s;
}
.button:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.button.primary,.button.gold{background:var(--gold);border-color:var(--gold);color:#101408}
.button.primary:hover,.button.gold:hover{background:#d4af35;border-color:#d4af35;box-shadow:0 14px 34px rgba(201,162,39,.32)}
.button.ghost{background:transparent;color:var(--ink)}
.button.ghost:hover{border-color:var(--ink)}
.section.dark .button.ghost,.hero.dark .button.ghost{color:var(--night-ink);border-color:var(--night-line)}
.section.dark .button.ghost:hover,.hero.dark .button.ghost:hover{border-color:var(--night-ink)}
.button.sm{min-height:42px;padding:0 18px;font-size:13px}
.button:disabled{opacity:.55;cursor:wait;transform:none}

/* ---------- 8. FORMS (Formspree compatible) ---------- */
.form{display:grid;gap:16px}
.field{display:grid;gap:8px}
.field label{
  font-family:var(--mono);font-size:10px;font-weight:500;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted);
}
.section.dark .field label{color:var(--night-muted)}
.field input,.field select,.field textarea{
  width:100%;min-height:54px;padding:12px 16px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--ink);
  transition:border-color .2s,box-shadow .2s;
}
.field textarea{min-height:130px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--quiet)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(47,212,196,.18);
}
.section.dark .field input,.section.dark .field select,.section.dark .field textarea{
  background:rgba(255,255,255,.06);border-color:var(--night-line);color:var(--night-ink);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-note{font-family:var(--mono);font-size:11px;line-height:1.6;color:var(--quiet)}
.form-success{
  padding:20px;border-radius:var(--radius-sm);font-size:14px;
  background:rgba(201,162,39,.12);border:1px solid rgba(201,162,39,.45);
}
.form-error{
  padding:16px;border-radius:var(--radius-sm);font-size:13px;
  background:rgba(200,60,60,.12);border:1px solid rgba(200,60,60,.45);color:#f0a3a3;
}
.check-row{display:flex;gap:12px;align-items:flex-start;font-size:13px;color:var(--muted)}
.check-row input{width:18px;height:18px;margin-top:2px;accent-color:var(--gold);flex:none}

/* ---------- 9. FOOTER ---------- */
.site-footer{background:var(--night);color:var(--night-ink);padding:72px 0 36px}
.foot-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:44px;padding-bottom:48px}
.foot-brand{font-family:var(--font-d);font-weight:700;font-size:20px;letter-spacing:.01em;margin-bottom:10px}
.foot-tag{color:var(--night-muted);font-size:14px;max-width:320px}
.foot-h{
  margin:0 0 16px;font-family:var(--mono);font-size:10px;font-weight:500;
  letter-spacing:.2em;text-transform:uppercase;color:#e9c86a;
}
.foot-grid nav a,.foot-links a{
  display:block;padding:5px 0;color:var(--night-muted);text-decoration:none;font-size:13px;
}
.foot-grid nav a:hover,.foot-links a:hover{color:var(--night-ink)}
.foot-base{
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding-top:24px;border-top:1px solid var(--night-line);
  font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--night-muted);
}
.foot-base a{text-decoration:none}
.foot-base a:hover{color:var(--night-ink)}

/* ---------- 10. REVEAL ON SCROLL ---------- */
.reveal{opacity:1;transform:none;transition:opacity .8s var(--ease),transform .8s var(--ease)}
.motion-ready .reveal{opacity:0;transform:translateY(26px)}
.motion-ready .reveal.visible{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal,.motion-ready .reveal{opacity:1;transform:none;transition:none}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
}

/* ---------- 11. UTILITIES ---------- */
.concept-tag{
  display:inline-block;padding:7px 12px;border-radius:999px;
  background:rgba(201,162,39,.12);border:1px solid rgba(201,162,39,.5);
  font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--gold-deep);
}
.section.dark .concept-tag{color:#e9c86a}
.stage-strip{
  display:inline-flex;align-items:center;gap:10px;margin-top:24px;
  padding:10px 14px;border-block:1px solid rgba(201,162,39,.5);
  font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;
}
.stage-strip::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold)}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.pill{
  padding:8px 14px;border-radius:999px;border:1px solid var(--line);
  font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);
}
.facts{margin:28px 0 0;padding:0;list-style:none;border-top:1px solid var(--line)}
.facts li{
  display:grid;grid-template-columns:110px 1fr;gap:16px;padding:14px 0;
  border-bottom:1px solid var(--line-soft);font-size:14px;
}
.facts b,.facts h5{
  margin:0;font-family:var(--mono);font-weight:500;font-size:10px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--gold-deep);
}
.media-frame{position:relative;overflow:hidden;border-radius:var(--radius);box-shadow:var(--shadow)}
.media-frame img,.media-frame video{width:100%;height:100%;object-fit:cover}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(36px,6vw,90px);align-items:center}
.split.reverse>.split-copy{order:-1}
.faq{margin-top:clamp(48px,6vw,80px);border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;cursor:pointer;padding:24px 0;font-family:var(--font-d);
  font-size:clamp(19px,2.2vw,26px);font-weight:600;letter-spacing:-.015em;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--gold-deep);font-family:var(--mono)}
.faq details[open] summary::after{content:"-"}
.faq p{max-width:800px;margin:0 0 26px;color:var(--muted)}

/* ---------- 12. RESPONSIVE ---------- */
@media(max-width:900px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr}
  .split.reverse>.split-copy{order:0}
  .foot-grid{grid-template-columns:1fr 1fr}
  .form-row{grid-template-columns:1fr}
  .nav-links{gap:14px}
  .nav-links a{font-size:10px}
}
@media(max-width:560px){
  .wrap{width:min(calc(100% - 32px),var(--max))}
  .topbar-inner{min-height:58px}
  .chapter{font-size:9px}
  .nav-links{
    display:none;position:absolute;left:12px;right:12px;top:58px;
    padding:14px 18px;background:var(--glass-strong);border:1px solid var(--line-soft);
    border-radius:var(--radius);box-shadow:var(--shadow);
    backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
    flex-direction:column;align-items:stretch;gap:0;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 4px;border-bottom:1px solid var(--line-soft);font-size:12px}
  .nav-links .join{margin-top:10px;text-align:center;border-bottom:0}
  .menu-button{display:block}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .foot-base{flex-direction:column}
  .hero{padding:130px 0 70px}
  .facts li{grid-template-columns:88px 1fr}
}

/* Kore splash loader: app-style logo reveal on every page load */
#kore-splash{position:fixed;inset:0;z-index:9999;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;background:#08090c;transition:opacity .6s ease,visibility .6s}
#kore-splash.done{opacity:0;visibility:hidden;pointer-events:none}
#kore-splash img{width:120px;height:120px;object-fit:contain;animation:kore-splash-pulse 1.6s ease-in-out infinite;filter:drop-shadow(0 0 28px rgba(43,198,184,.45))}
#kore-splash .splash-word{font-weight:800;letter-spacing:.42em;text-indent:.42em;font-size:.8rem;color:#e9f2ee}
#kore-splash .splash-sub{font-size:.68rem;letter-spacing:.24em;text-indent:.24em;color:#7d8ea3}
@keyframes kore-splash-pulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.06);opacity:.88}}
@media (prefers-reduced-motion:reduce){#kore-splash img{animation:none}#kore-splash{transition-duration:.1s}}

/* 3D showcase embeds */
.viewer-frame{border:1px solid var(--line-soft);border-radius:var(--radius);overflow:hidden;background:#0b0e14;box-shadow:var(--shadow)}
.viewer-frame iframe{width:100%;aspect-ratio:16/10;border:0;display:block;touch-action:pan-y}
/* Mobile version: taller viewers, touch-first */
@media(max-width:560px){
  .viewer-frame iframe{aspect-ratio:4/3.6}
  #showcase-3d .section-head h2{font-size:1.55rem}
  #showcase-3d .lead{font-size:.95rem}
}

/* ---------- 13. SLEEK OVERRIDE LAYER (2026-10-15) ----------
   Per-page local styles written for the retired light theme
   hardcode a few white surfaces. On the dark matte system
   those components sit on glass instead. */
.section .launch-form input,.section .quiz-form input{
  background:rgba(255,255,255,.06);color:var(--ink);border-color:var(--line);
}
.section .launch-form input::placeholder,.section .quiz-form input::placeholder{color:var(--quiet)}
.quiz-opt{background:rgba(255,255,255,.05);color:var(--ink);border-color:var(--line)}
.quiz-opt:hover{background:rgba(201,162,39,.10);border-color:var(--gold)}
html{color-scheme:dark}
img{color-scheme:light}