/* ===================================================================
   Polaris Blockchain Week — main stylesheet
   -------------------------------------------------------------------
   1.  Tokens
   2.  Base
   3.  Buttons
   4.  Header / navigation
   5.  Hero
   6.  Intro
   7.  Partner strip
   8.  Stats
   9.  Section shell
   10. Speakers
   11. Program
   12. Tickets
   13. Testimonials
   14. Call to action
   15. Footer
   16. Responsive
   17. Legal / text pages
   =================================================================== */

/* ---------- 1. Tokens ---------- */
:root{
  --brand:#F2571B;
  --brand-dark:#D2440D;
  --brand-tint:#FFF1EA;
  --ink:#121212;
  --ink-2:#4E4E4E;
  --line:#E8E4E0;
  --bg:#FFFFFF;
  --soft:#F7F4F1;
  --radius:14px;
  --maxw:1180px;
  --font:"Archivo","Inter","Helvetica Neue",Helvetica,Arial,sans-serif;
}

/* ---------- 2. Base ---------- */
*{box-sizing:border-box}
html{scroll-behavior:smooth}

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:17px;
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block}
a{color:inherit}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

h1,h2,h3{margin:0;line-height:1.02;letter-spacing:-0.035em;font-weight:800}
h1{font-size:clamp(46px,8.4vw,104px)}
h2{font-size:clamp(34px,5.2vw,64px)}
h3{font-size:clamp(20px,2.2vw,26px);line-height:1.15;letter-spacing:-0.02em}
p{margin:0 0 18px}

.orange{color:var(--brand)}

.eyebrow{
  font-size:13px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--brand);margin:0 0 18px;
}

.lead{font-size:clamp(17px,1.5vw,19px);color:var(--ink-2)}
.lead b{color:var(--ink);font-weight:700}

/* ---------- 3. Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--brand);color:#fff;text-decoration:none;
  font-weight:700;font-size:15px;letter-spacing:-0.01em;
  padding:14px 24px;border-radius:10px;border:0;cursor:pointer;
  transition:background .18s ease, transform .18s ease;
}
.btn:hover{background:var(--brand-dark);transform:translateY(-1px)}
.btn img{flex:none;width:16px;height:16px}

.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line)}
.btn-ghost:hover{background:var(--soft);border-color:#d8d2cc}

/* ---------- 4. Header / navigation ---------- */
header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.88);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--line);
}

.bar{
  max-width:var(--maxw);margin:0 auto;padding:12px 24px;
  display:flex;align-items:center;gap:24px;
}

.logo{display:flex;align-items:center;gap:12px;text-decoration:none;margin-right:auto}
.logo-mark{
  width:46px;height:46px;background:#fff;border:1px solid var(--line);
  border-radius:12px;display:grid;place-items:center;flex:none;
}
.logo-mark img{width:30px;height:30px}
.logo-name{font-weight:800;letter-spacing:-0.03em;line-height:1.05;font-size:15px}
.logo-name span{display:block;color:var(--ink-2);font-weight:600;font-size:12px;letter-spacing:.02em}

nav.desktop{display:flex;gap:26px}
nav.desktop a{
  text-decoration:none;font-size:15px;font-weight:600;color:var(--ink);
  padding:6px 0;border-bottom:2px solid transparent;
}
nav.desktop a:hover{color:var(--brand);border-color:var(--brand)}

.menu-btn{
  display:none;width:46px;height:46px;border:1px solid var(--line);background:#fff;
  border-radius:12px;cursor:pointer;padding:0;place-items:center;
}
.menu-btn span{display:block;width:20px;height:2px;background:var(--ink);margin:4px auto;border-radius:2px}

nav.mobile{display:none;border-top:1px solid var(--line);background:#fff}
nav.mobile a{
  display:block;padding:14px 24px;text-decoration:none;font-weight:600;
  border-bottom:1px solid var(--line);
}
nav.mobile.open{display:block}

/* ---------- 5. Hero ---------- */
.hero-band{position:relative;height:clamp(220px,32vw,380px);overflow:hidden;background:#1A1A1A}
.hero-band img{width:100%;height:100%;object-fit:cover}

.hero-tag{
  position:absolute;left:0;right:0;bottom:18px;z-index:2;
  color:#fff;font-size:13px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  opacity:.9;
}

/* ---------- 6. Intro ---------- */
.intro{padding:64px 0 76px}
.intro-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:56px}

.facts{margin:34px 0 0;padding:0;list-style:none}
.facts li{display:flex;gap:12px;align-items:flex-start;padding:9px 0;font-weight:600}
.facts li.hl{color:var(--brand)}
.facts img{margin-top:4px;flex:none;width:16px;height:16px}
.facts .sep{height:1px;background:var(--line);margin:16px 0;padding:0}

/* ---------- 7. Partner strip ---------- */
.strip{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--soft);overflow:hidden;
}
.strip-inner{display:flex;gap:56px;padding:26px 0;width:max-content;animation:slide 34s linear infinite}
.strip:hover .strip-inner{animation-play-state:paused}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}

.plogo{
  font-weight:800;font-size:21px;letter-spacing:-0.04em;color:#8B8580;white-space:nowrap;
  display:flex;align-items:center;gap:9px;
}
.plogo i{width:14px;height:14px;background:#C9C2BB;border-radius:4px;display:block;transform:rotate(45deg)}

@media (prefers-reduced-motion:reduce){.strip-inner{animation:none}}

/* ---------- 8. Stats ---------- */
.stats{padding:66px 0}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;background:#fff}
.stat b{
  display:block;font-size:clamp(38px,4.6vw,54px);font-weight:800;
  letter-spacing:-0.045em;line-height:1;color:var(--brand);
}
.stat span{display:block;margin-top:10px;font-size:14px;font-weight:600;color:var(--ink-2)}

/* ---------- 9. Section shell ---------- */
section{scroll-margin-top:84px}
.sec{padding:78px 0;border-top:1px solid var(--line)}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:28px;margin-bottom:44px;flex-wrap:wrap}
.sec-head p{max-width:460px;margin:14px 0 0;color:var(--ink-2)}

/* ---------- 10. Speakers ---------- */
.speakers{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.sp{background:#fff}
.sp .ph{
  aspect-ratio:1/1;border-radius:var(--radius);overflow:hidden;position:relative;
  background:linear-gradient(150deg,#FFE2D2,#FFC9AE 55%,#FFB48C);
}
.sp:nth-child(4n+2) .ph{background:linear-gradient(150deg,#E9E4DE,#D8CFC6 55%,#C9BEB2)}
.sp:nth-child(4n+3) .ph{background:linear-gradient(150deg,#FFD9C4,#F5A97F 55%,#EC8B54)}
.sp:nth-child(4n)   .ph{background:linear-gradient(150deg,#E4E7EA,#CDD3D9 55%,#B9C1C9)}
.sp .ph img{position:absolute;inset:0;width:100%;height:100%}
.sp h3{margin:16px 0 4px;font-size:19px}
.sp p{margin:0;font-size:14px;color:var(--ink-2);line-height:1.45}

/* ---------- 11. Program ---------- */
.days{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.day{
  border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px;background:#fff;
  transition:border-color .18s ease, transform .18s ease;
}
.day:hover{border-color:var(--brand);transform:translateY(-2px)}
.day .d{font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--brand);margin-bottom:14px}
.day ul{margin:18px 0 0;padding:0;list-style:none;border-top:1px solid var(--line)}
.day li{display:flex;gap:14px;padding:11px 0;border-bottom:1px solid var(--line);font-size:15px}
.day li:last-child{border-bottom:0}
.day li em{font-style:normal;font-weight:700;color:var(--ink-2);font-variant-numeric:tabular-nums;flex:none;width:52px}

/* ---------- 12. Tickets ---------- */
.tix{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;align-items:stretch}
.tk{
  border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;background:#fff;
  display:flex;flex-direction:column;height:100%;
}
.tk.feat{background:var(--ink);color:#fff;border-color:var(--ink)}
.tk .name{font-weight:800;letter-spacing:-0.02em;font-size:19px}
.tk .tagline{font-size:14px;color:var(--ink-2);margin:6px 0 20px}
.tk.feat .tagline{color:#BDB7B1}

.price{font-size:44px;font-weight:800;letter-spacing:-0.05em;color:var(--brand);line-height:1}
.price small{font-size:14px;font-weight:600;color:var(--ink-2);letter-spacing:0}
.tk.feat .price{color:#fff}
.tk.feat .price small{color:#BDB7B1}

.tk ul{list-style:none;margin:22px 0 26px;padding:0;flex:1}
.tk ul li{font-size:14.5px;padding:9px 0;border-bottom:1px solid var(--line);color:var(--ink-2)}
.tk ul li:last-child{border-bottom:0}
.tk.feat ul li{color:#CFCAC5;border-color:rgba(255,255,255,.14)}
.tk .btn{justify-content:center;width:100%}

.badge{
  display:inline-block;background:var(--brand);color:#fff;font-size:11px;font-weight:800;
  letter-spacing:.12em;text-transform:uppercase;padding:5px 10px;border-radius:999px;margin-bottom:14px;
}

/* ---------- 13. Testimonials ---------- */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.q{background:var(--soft);border-radius:var(--radius);padding:30px 28px}
.q p{font-size:17.5px;letter-spacing:-0.015em;line-height:1.5}
.q .who{display:flex;align-items:center;gap:12px;margin-top:22px}
.q .dot{width:38px;height:38px;border-radius:50%;background:linear-gradient(150deg,#FFC9AE,#F2571B);flex:none}
.q .who b{display:block;font-size:15px}
.q .who span{font-size:13px;color:var(--ink-2)}

/* ---------- 14. Call to action ---------- */
.cta{
  border-radius:20px;padding:clamp(38px,5vw,68px);color:#fff;position:relative;overflow:hidden;
  background:linear-gradient(120deg,#F2571B 0%,#FF7A3D 52%,#E0400A 100%);
}
.cta .deco{position:absolute;right:-40px;top:-40px;opacity:.22;width:320px;height:320px}
.cta h2{max-width:16ch}
.cta p{max-width:52ch;margin-top:18px;color:rgba(255,255,255,.92)}
.cta .btn{background:#fff;color:var(--ink);margin-top:12px}
.cta .btn:hover{background:#111;color:#fff}

/* ---------- 15. Footer ---------- */
footer{border-top:1px solid var(--line);padding:56px 0 40px;margin-top:78px}
.foot{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.foot h4{margin:0 0 14px;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-2)}
.foot a{display:block;text-decoration:none;padding:5px 0;font-size:15px;font-weight:600}
.foot a:hover{color:var(--brand)}
.foot .about p{color:var(--ink-2);font-size:15px;max-width:36ch}
.foot .about .logo{margin-bottom:16px}

.legal{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:var(--ink-2);
}

/* ---------- 16. Responsive ---------- */
@media (max-width:1000px){
  .intro-grid{grid-template-columns:1fr;gap:34px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .speakers{grid-template-columns:repeat(3,1fr)}
  .days{grid-template-columns:1fr}
  .tix{grid-template-columns:repeat(2,1fr)}
  .quotes{grid-template-columns:1fr}
  .foot{grid-template-columns:1fr 1fr}
}

@media (max-width:720px){
  nav.desktop{display:none}
  .menu-btn{display:grid}
  .bar .btn{padding:12px 16px;font-size:14px}
  .speakers{grid-template-columns:repeat(2,1fr)}
  .tix{grid-template-columns:1fr}
  .sec{padding:58px 0}
  .foot{grid-template-columns:1fr}
}

/* ---------- 17. Legal / text pages ---------- */
.page-head{padding:64px 0 40px;border-bottom:1px solid var(--line)}
.page-head h1{font-size:clamp(38px,6vw,72px);max-width:16ch}
.page-head .updated{margin:22px 0 0;font-size:14px;font-weight:600;color:var(--ink-2)}

.prose{padding:52px 0 20px;max-width:74ch}
.prose h2{font-size:clamp(24px,2.6vw,30px);margin:44px 0 14px}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:19px;margin:28px 0 8px}
.prose p{color:var(--ink-2)}
.prose ul{margin:0 0 20px;padding-left:22px;color:var(--ink-2)}
.prose li{margin:7px 0}
.prose a{color:var(--brand);font-weight:600}
.prose strong{color:var(--ink)}

.notice{
  background:var(--brand-tint);border:1px solid #F7C9B2;border-radius:var(--radius);
  padding:20px 22px;margin:0 0 36px;
}
.notice p{margin:0;color:#8A3A12;font-size:15px}

.back{
  display:inline-flex;align-items:center;gap:8px;margin:28px 0 0;
  font-weight:700;text-decoration:none;color:var(--brand);font-size:15px;
}
.back:hover{color:var(--brand-dark)}

.legal a{color:inherit;text-decoration:none;font-weight:600}
.legal a:hover{color:var(--brand)}