/* ==========================================================================
   HACK4GOOD 2.0 — IEEE SPS Kerala Chapter
   Dark "cosmic" theme, ported from the hack4good-2.0 Next.js build:
   deep indigo ground, purple primary, amber accent, star field, glass cards,
   Space Grotesk display type.
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root{
  /* ground */
  --bg-deep:#06071a;
  --bg-dark:#0b0d2a;
  --bg-card:#0f1135;
  --bg-card2:#121538;

  /* primary / accent */
  --purple:#7c3aed;
  --purple-light:#8b5cf6;
  --purple-dark:#5b21b6;
  --purple-glow:rgba(124,58,237,.4);
  --gold:#f59e0b;
  --gold-light:#fbbf24;
  --gold-dark:#d97706;

  /* lines */
  --border:rgba(124,58,237,.2);
  --border-soft:rgba(124,58,237,.15);
  --border-strong:rgba(124,58,237,.4);
  --border-gold:rgba(245,158,11,.3);
  --hair:rgba(255,255,255,.08);

  /* text ladder */
  --t1:#ffffff;
  --t2:rgba(255,255,255,.7);
  --t3:rgba(255,255,255,.55);
  --t4:rgba(255,255,255,.4);
  --t5:rgba(255,255,255,.3);

  --ok:#10b981;
  --warn:#f59e0b;
  --err:#ef4444;

  --r-sm:8px; --r-md:12px; --r-lg:16px; --r-xl:20px;
  --shadow-sm:0 2px 10px rgba(0,0,0,.3);
  --shadow-md:0 8px 32px rgba(124,58,237,.15);
  --shadow-lg:0 20px 60px rgba(0,0,0,.5), 0 0 40px rgba(124,58,237,.12);
  --shadow-purple:0 8px 24px var(--purple-glow);
  --shadow-gold:0 8px 24px rgba(245,158,11,.28);

  --maxw:1200px;
  --nav-h:68px;

  --f-display:'Space Grotesk','Inter',system-ui,sans-serif;
  --f-sans:'Space Grotesk','Inter',system-ui,-apple-system,sans-serif;
  --ease:cubic-bezier(.22,.8,.28,1);
}

/* SDG palette (UN official — the one thing carried over from the brief) */
.sdg-3 { --sdg:#4c9f38; }
.sdg-4 { --sdg:#c5192d; }
.sdg-6 { --sdg:#26bde2; }
.sdg-9 { --sdg:#fd6925; }
.sdg-11{ --sdg:#fd9d24; }
.sdg-13{ --sdg:#3f7e44; }
.sdg-17{ --sdg:#4f7fb0; }

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 16px)}
body{
  margin:0;font-family:var(--f-sans);color:var(--t1);background:var(--bg-deep);
  font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.15;letter-spacing:-.02em;font-weight:700;color:var(--t1);font-family:var(--f-display)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--purple-light);outline-offset:2px;border-radius:4px}
[hidden]{display:none!important}
::selection{background:var(--purple);color:#fff}

::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:var(--bg-deep)}
::-webkit-scrollbar-thumb{background:var(--purple);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--purple-light)}

/* ---------- 3. Star field ---------- */
.star-bg{position:relative;isolation:isolate}
.star-bg::before,
.section::before,
.hero::before,
.page-head::before{
  content:'';position:absolute;inset:0;pointer-events:none;z-index:-1;
  background-image:
    radial-gradient(1.5px 1.5px at 10% 15%, rgba(255,255,255,.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 25% 40%, rgba(255,255,255,.3) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 40% 10%, rgba(255,255,255,.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 55% 65%, rgba(255,255,255,.25) 0%, transparent 100%),
    radial-gradient(2px 2px at 70% 30%, rgba(255,255,255,.35) 0%, transparent 100%),
    radial-gradient(1px 1px at 80% 75%, rgba(255,255,255,.3) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 90% 20%, rgba(255,255,255,.45) 0%, transparent 100%),
    radial-gradient(1px 1px at 15% 80%, rgba(255,255,255,.2) 0%, transparent 100%),
    radial-gradient(1px 1px at 35% 90%, rgba(255,255,255,.15) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 60% 50%, rgba(255,255,255,.2) 0%, transparent 100%),
    radial-gradient(1px 1px at 75% 85%, rgba(255,255,255,.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 5% 55%, rgba(255,255,255,.25) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 45% 70%, rgba(255,255,255,.2) 0%, transparent 100%),
    radial-gradient(1px 1px at 88% 45%, rgba(255,255,255,.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 20% 25%, rgba(255,255,255,.25) 0%, transparent 100%);
}

/* ---------- 4. Layout ---------- */
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:24px;position:relative;z-index:1}
.section{
  padding:96px 0;position:relative;isolation:isolate;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(124,58,237,.12) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(245,158,11,.06) 0%, transparent 50%),
    radial-gradient(ellipse at 60% 80%, rgba(124,58,237,.08) 0%, transparent 50%),
    var(--bg-deep);
}
.section--tint{
  background:
    radial-gradient(ellipse at 75% 30%, rgba(124,58,237,.14) 0%, transparent 58%),
    radial-gradient(ellipse at 15% 70%, rgba(245,158,11,.05) 0%, transparent 52%),
    var(--bg-dark);
}
.section--navy{
  background:
    radial-gradient(ellipse at 50% 0%, rgba(124,58,237,.2) 0%, transparent 62%),
    radial-gradient(ellipse at 85% 85%, rgba(245,158,11,.07) 0%, transparent 50%),
    #080a20;
}
.section--tight{padding:64px 0}
.center{text-align:center}
.grid{display:grid;gap:22px}
.g3{grid-template-columns:repeat(auto-fit,minmax(270px,1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.stack-sm{display:flex;flex-direction:column;gap:10px}

/* section badge — gold pill above every heading */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:999px;
  font-size:.7rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--gold);border:1px solid var(--border-gold);background:rgba(245,158,11,.08);
  margin-bottom:20px;font-family:var(--f-sans);
}

h2.h-sec{font-size:clamp(2rem,4.6vw,3rem);margin-bottom:0;font-weight:700}
h2.h-sec .hi{color:var(--gold)}
.hi{color:var(--gold)}   /* amber highlight, any heading */
.sec-head h2.h-sec::after{
  content:"";display:block;width:48px;height:3px;background:var(--gold);
  border-radius:2px;margin:16px 0 0;
}
.sec-head.center h2.h-sec::after{margin-inline:auto}
.lede{color:var(--t3);font-size:1.05rem;max-width:70ch;margin-top:18px;line-height:1.7}
.sec-head{margin-bottom:52px}
.sec-head.center{display:flex;flex-direction:column;align-items:center}
.sec-head.center .lede{margin-inline:auto;text-align:center}

/* ---------- 5. Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:10px;border:2px solid transparent;
  font-weight:700;font-size:.94rem;cursor:pointer;font-family:var(--f-sans);
  transition:background .2s,color .2s,transform .2s var(--ease),box-shadow .2s,border-color .2s;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
/* purple solid — primary action */
.btn--navy{background:var(--purple);color:#fff;border-color:var(--purple)}
.btn--navy:hover{background:var(--purple-light);border-color:var(--purple-light);box-shadow:var(--shadow-purple)}
/* gold solid */
.btn--gold{background:var(--gold);color:var(--bg-deep);border-color:var(--gold);font-weight:800}
.btn--gold:hover{background:var(--gold-light);border-color:var(--gold-light);box-shadow:var(--shadow-gold)}
/* gold outline — secondary */
.btn--outline{background:transparent;color:var(--gold);border-color:var(--gold)}
.btn--outline:hover{background:var(--gold);color:var(--bg-deep)}
/* white ghost */
.btn--ghost{border-color:rgba(255,255,255,.25);color:var(--t2);background:transparent}
.btn--ghost:hover{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.5);color:#fff}
.btn--sm{padding:9px 20px;font-size:.86rem;border-radius:8px}
.btn--full{width:100%}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none!important}

/* ---------- 6. Header ---------- */
.topbar{
  background:var(--bg-deep);color:var(--t4);font-size:.72rem;letter-spacing:.06em;
  padding:8px 0;border-bottom:1px solid var(--border-soft);
}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:14px}
.topbar .org{display:flex;align-items:center;gap:10px;flex-wrap:wrap;text-transform:uppercase;font-weight:600;color:var(--t2)}
.topbar .org .sub{color:var(--t4);text-transform:none;letter-spacing:.02em;font-weight:500}
.topbar .org .presents{color:var(--gold);font-style:italic;text-transform:lowercase}
.ieee-mark{display:inline-flex;align-items:center;gap:9px;font-weight:700;letter-spacing:.12em;color:var(--t2);font-size:.7rem}
.ieee-mark .badge{
  width:30px;height:24px;border-radius:5px;display:grid;place-items:center;
  background:rgba(124,58,237,.16);border:1px solid var(--border);
  font-size:.55rem;letter-spacing:.02em;color:#fff;
}

.nav{
  position:sticky;top:0;z-index:60;
  background:rgba(6,7,26,.85);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border-soft);
  transition:box-shadow .3s,background .3s;
}
.nav.is-stuck{box-shadow:0 8px 32px rgba(0,0,0,.5);background:rgba(6,7,26,.94)}
.nav .wrap{display:flex;align-items:center;gap:16px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:12px;margin-right:auto;flex-shrink:0}
.brand-mark{
  width:44px;height:44px;flex-shrink:0;display:block;border-radius:10px;object-fit:cover;
  border:1px solid var(--border);box-shadow:0 2px 10px rgba(0,0,0,.35);
  transition:border-color .25s,transform .25s var(--ease);
}
.brand:hover .brand-mark{border-color:var(--border-gold);transform:translateY(-1px)}
.brand .txt{display:flex;flex-direction:column;line-height:1.15}
.brand .txt b{color:#fff;font-size:.95rem;letter-spacing:.01em;font-weight:700;font-family:var(--f-display)}
.brand .txt span{color:var(--t4);font-size:.63rem;letter-spacing:.13em;text-transform:uppercase}

.nav-links{display:flex;align-items:center;gap:2px}
.nav-links a{
  position:relative;padding:8px 12px;border-radius:6px;color:var(--t4);
  font-size:.85rem;font-weight:500;transition:color .2s,background .2s;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-links a.active{color:#fff}
.nav-links a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--gold);border-radius:2px;
}
.nav-cta{margin-left:10px}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:8px;border:1px solid var(--border);
  background:rgba(124,58,237,.08);cursor:pointer;place-items:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:17px;height:2px;background:#fff;border-radius:2px;transition:transform .3s var(--ease),opacity .2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 7. Hero ---------- */
.hero{
  position:relative;overflow:hidden;isolation:isolate;
  padding:80px 0 0;text-align:center;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(124,58,237,.12) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(245,158,11,.06) 0%, transparent 50%),
    radial-gradient(ellipse at 60% 80%, rgba(124,58,237,.08) 0%, transparent 50%),
    var(--bg-deep);
}
.hero::after{
  content:"";position:absolute;left:50%;top:34%;width:600px;height:600px;
  transform:translate(-50%,-50%);border-radius:50%;pointer-events:none;z-index:-1;
  background:radial-gradient(circle, rgba(124,58,237,.18) 0%, transparent 70%);
}
.hero-inner{display:flex;flex-direction:column;align-items:center;padding-bottom:72px}
.hero-chip{
  display:inline-flex;align-items:center;gap:9px;padding:6px 16px;border-radius:999px;
  font-size:.7rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--gold);border:1px solid var(--border-gold);background:rgba(245,158,11,.08);
  margin-bottom:34px;
}
.hero-chip .dot{width:8px;height:8px;border-radius:50%;background:var(--purple-light);box-shadow:0 0 6px var(--purple-light)}

/* floating wordmark card */
.logo-card{
  background:rgba(15,17,53,.9);border:1px solid var(--border-strong);border-radius:20px;
  padding:44px 56px;margin-bottom:34px;
  box-shadow:0 0 80px rgba(124,58,237,.2), inset 0 1px 0 rgba(255,255,255,.05);
  animation:floatY 7s ease-in-out infinite;
}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
.logo-card .word{
  font-family:var(--f-display);font-weight:700;line-height:1;
  font-size:clamp(2.6rem,8vw,6rem);letter-spacing:-.02em;color:#fff;
  text-shadow:0 0 40px rgba(255,255,255,.15);
}
.logo-card .word .four{color:var(--gold);text-shadow:0 0 30px rgba(245,158,11,.6)}
.logo-card .edition{
  display:flex;align-items:center;gap:14px;margin-top:14px;padding-top:14px;
  border-top:1px solid rgba(255,255,255,.1);
}
.logo-card .edition .rule{flex:1;height:1px;background:rgba(255,255,255,.15)}
.logo-card .edition span{
  color:var(--t4);font-size:.7rem;letter-spacing:.22em;text-transform:uppercase;
  font-family:ui-monospace,'SFMono-Regular',Menlo,Consolas,monospace;white-space:nowrap;
}

.hero .tagline{
  font-size:.82rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--gold);font-weight:700;margin-bottom:18px;
}
.hero h1{
  font-size:clamp(1.7rem,4.4vw,3rem);font-weight:700;color:#fff;
  max-width:24ch;margin:0 auto 18px;line-height:1.22;
}
.hero h1 .hi{color:var(--gold)}
.hero .pitch{font-size:1.02rem;color:var(--t3);max-width:62ch;margin:0 auto 32px;line-height:1.7}
.hero .pitch strong{color:#fff;font-weight:600}

.phase-pills{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:34px}
.phase-pill{
  padding:10px 22px;border-radius:999px;text-align:center;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);color:var(--t3);
  font-size:.88rem;font-weight:600;transition:all .25s var(--ease);
}
.phase-pill:hover{transform:translateY(-2px);border-color:var(--border-strong)}
.phase-pill.on{background:var(--purple);border-color:var(--purple);color:#fff}
.phase-pill small{display:block;font-size:.68rem;opacity:.7;font-weight:500}

.hero-cta{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-bottom:8px}

/* stat band under the hero */
.stat-band{background:linear-gradient(135deg,#2d1b69,#1e1050,#2d1b69);padding:34px 0}
.stat-band .row{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;max-width:960px;margin-inline:auto}
.stat-band .item{text-align:center}
.stat-band .v{
  font-family:var(--f-display);font-size:clamp(1.5rem,3.4vw,2.3rem);font-weight:700;
  color:var(--gold);line-height:1.1;margin-bottom:4px;
}
.stat-band .k{font-size:.66rem;font-weight:700;text-transform:uppercase;letter-spacing:.14em;color:rgba(255,255,255,.45)}

/* key facts strip */
.facts{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--border-soft);
  border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;width:100%;
}
.fact{background:rgba(15,17,53,.8);padding:20px;text-align:left;backdrop-filter:blur(12px)}
.fact .k{font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--t4);margin-bottom:6px;font-weight:700}
.fact .v{font-weight:700;color:#fff;font-size:1rem;line-height:1.3;font-family:var(--f-display)}
.fact .v small{display:block;font-weight:400;color:var(--t4);font-size:.76rem;margin-top:3px;font-family:var(--f-sans)}

/* ---------- 8. Glass cards ---------- */
.card{
  background:rgba(15,17,53,.8);border:1px solid rgba(124,58,237,.18);border-radius:var(--r-lg);
  padding:26px;backdrop-filter:blur(12px);position:relative;overflow:hidden;
  transition:border-color .3s,box-shadow .3s,transform .3s var(--ease);
}
.card:hover{border-color:var(--border-strong);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.card--accent::before{
  content:"";position:absolute;inset:0 0 auto 0;height:2px;
  background:linear-gradient(90deg,var(--purple),var(--gold));
  transform:scaleX(0);transform-origin:left;transition:transform .4s var(--ease);
}
.card--accent:hover::before{transform:scaleX(1)}
.card h3{font-size:1.08rem;margin-bottom:10px;color:#fff}
.card p{color:var(--t3);font-size:.92rem;line-height:1.65}
.card .ico{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:16px;
  background:rgba(124,58,237,.8);color:#fff;font-size:1.05rem;font-weight:800;font-family:var(--f-display);
}
.card ul.ticks{display:grid;gap:9px;margin-top:14px}
.card ul.ticks li{display:flex;gap:10px;font-size:.89rem;color:var(--t2);line-height:1.55}
.card ul.ticks li::before{content:"→";color:var(--gold);font-weight:700;flex-shrink:0}
/* faded giant corner number */
.card .num-bg{
  position:absolute;top:8px;right:16px;font-size:5.5rem;font-weight:800;line-height:1;
  color:rgba(124,58,237,.08);pointer-events:none;user-select:none;font-family:var(--f-display);
}

/* ---------- 9. Tables ---------- */
.table-wrap{
  overflow-x:auto;border:1px solid var(--border);border-radius:var(--r-lg);
  background:rgba(15,17,53,.8);backdrop-filter:blur(12px);-webkit-overflow-scrolling:touch;
}
table{width:100%;border-collapse:collapse;min-width:520px;font-size:.92rem}
thead th{
  background:rgba(124,58,237,.22);color:#fff;text-align:left;padding:14px 18px;
  font-size:.68rem;letter-spacing:.13em;text-transform:uppercase;font-weight:700;white-space:nowrap;
  border-bottom:1px solid var(--border);
}
tbody td{padding:14px 18px;border-top:1px solid rgba(124,58,237,.12);vertical-align:top;color:var(--t3)}
tbody tr:hover{background:rgba(124,58,237,.05)}
tbody td:first-child{color:#fff;font-weight:600}
.table-note{font-size:.82rem;color:var(--t4);margin-top:14px}
.table-note code{background:rgba(124,58,237,.14);padding:2px 6px;border-radius:4px;color:var(--gold);font-size:.9em}
.cmp td:first-child{color:var(--t4);font-weight:400}
.cmp td:last-child{color:#fff;font-weight:500}
.cmp thead th:last-child{background:rgba(245,158,11,.2);color:var(--gold-light)}

.wbar{display:flex;align-items:center;gap:12px;min-width:150px}
.wbar .rail-b{flex:1;height:6px;border-radius:99px;background:rgba(255,255,255,.08);overflow:hidden}
.wbar .fill{height:100%;border-radius:99px;background:linear-gradient(90deg,var(--purple),var(--gold));width:0;transition:width 1s var(--ease)}
.wbar b{color:var(--gold);font-size:.86rem;min-width:34px;text-align:right;font-family:var(--f-display)}

/* ---------- 10. Timeline ---------- */
.timeline{position:relative;display:grid;gap:24px}
.timeline::before{
  content:"";position:absolute;left:27px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,var(--purple),var(--gold),transparent);opacity:.35;
}
.tl-item{display:grid;grid-template-columns:56px 1fr;gap:20px;align-items:start;position:relative}
.tl-dot{
  width:56px;height:56px;border-radius:14px;display:grid;place-items:center;z-index:1;
  background:rgba(124,58,237,.8);color:#fff;font-weight:700;font-family:var(--f-display);
  border:1px solid var(--border-strong);font-size:.7rem;letter-spacing:.04em;
  line-height:1.1;text-align:center;box-shadow:0 0 24px rgba(124,58,237,.35);
}
.tl-item:nth-child(2) .tl-dot{background:rgba(245,158,11,.75);color:var(--bg-deep)}
.tl-item:nth-child(3) .tl-dot{background:rgba(16,185,129,.72)}
.tl-body{
  background:rgba(15,17,53,.8);border:1px solid rgba(124,58,237,.18);border-radius:var(--r-lg);
  padding:24px;backdrop-filter:blur(12px);transition:border-color .3s,box-shadow .3s,transform .3s var(--ease);
}
.tl-item:hover .tl-body{border-color:var(--border-strong);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.tl-body h3{font-size:1.15rem;margin-bottom:10px;color:#fff}
.tl-body p{color:var(--t3);font-size:.92rem;line-height:1.65}
.tl-body .sub-list{display:grid;gap:8px;margin-top:14px}
.tl-body .sub-list li{display:flex;gap:10px;font-size:.87rem;color:var(--t2);line-height:1.55}
.tl-body .sub-list li::before{content:"→";color:var(--gold);font-weight:700;flex-shrink:0}

.pill{
  display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:999px;
  font-size:.73rem;font-weight:600;
  background:rgba(124,58,237,.1);color:var(--t2);border:1px solid var(--border);
}
.pill--gold{background:rgba(245,158,11,.1);color:var(--gold);border-color:var(--border-gold)}
.pill--maroon{background:rgba(16,185,129,.1);color:#34d399;border-color:rgba(16,185,129,.28)}
.pill--sdg{
  background:color-mix(in srgb,var(--sdg) 20%,transparent);
  color:color-mix(in srgb,var(--sdg) 82%,#fff);
  border-color:color-mix(in srgb,var(--sdg) 35%,transparent);
}

/* ---------- 11. Pipeline + tracks ---------- */
.pipeline{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px;margin-bottom:44px}
.pipeline .node{
  padding:9px 20px;border-radius:999px;font-weight:600;font-size:.85rem;
  background:rgba(124,58,237,.1);border:1px solid var(--border);color:var(--t2);
  transition:transform .3s var(--ease),background .3s,color .3s;
}
.pipeline .node:hover{transform:translateY(-3px);background:var(--purple);color:#fff;border-color:var(--purple)}
.pipeline .arrow{color:var(--gold);font-weight:700}

.track-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:20px}
.track{
  background:rgba(15,17,53,.8);border:1px solid rgba(124,58,237,.18);border-radius:var(--r-lg);
  padding:26px;backdrop-filter:blur(12px);position:relative;overflow:hidden;
  transition:border-color .3s,box-shadow .3s,transform .3s var(--ease);
}
.track:hover{border-color:var(--border-strong);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.track .layer{font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);font-weight:700;margin-bottom:12px;max-width:74%}
.track h3{font-size:1.04rem;color:#fff;margin-bottom:10px}
.track p{color:var(--t3);font-size:.88rem;line-height:1.65}
.track .set{
  position:absolute;top:20px;right:20px;font-size:.62rem;font-weight:700;letter-spacing:.1em;
  padding:3px 10px;border-radius:999px;border:1px solid var(--border);color:var(--t4);
  background:rgba(124,58,237,.1);
}
.track .num{
  font-size:5rem;font-weight:800;color:rgba(124,58,237,.07);position:absolute;
  bottom:-6px;right:16px;line-height:1;font-family:var(--f-display);pointer-events:none;
}

/* ---------- 12. Stats ---------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:20px}
.stat{
  background:rgba(15,17,53,.6);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:26px 22px;text-align:center;transition:border-color .3s,transform .3s var(--ease);
}
.stat:hover{border-color:var(--border-strong);transform:translateY(-3px)}
.stat .n{font-size:2.6rem;font-weight:700;color:var(--gold);line-height:1;font-family:var(--f-display)}
.stat .l{font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--t4);margin-top:10px;font-weight:700}

/* ---------- 13. Pricing ---------- */
.price-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px;align-items:stretch}
.price{
  position:relative;background:rgba(15,17,53,.8);border:1px solid rgba(124,58,237,.18);
  border-radius:var(--r-xl);padding:32px 28px;display:flex;flex-direction:column;
  backdrop-filter:blur(12px);transition:border-color .3s,box-shadow .3s,transform .3s var(--ease);
}
.price:hover{border-color:var(--border-strong);box-shadow:var(--shadow-md);transform:translateY(-4px)}
.price.featured{border-color:var(--border-gold);box-shadow:0 0 40px rgba(245,158,11,.1)}
.price.featured::after{
  content:"Lowest rate";position:absolute;top:-11px;right:24px;
  background:linear-gradient(135deg,var(--gold),var(--gold-dark));color:var(--bg-deep);
  font-size:.64rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;
  padding:4px 12px;border-radius:999px;
}
.price .cat{font-size:.68rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--purple-light);margin-bottom:12px}
.price h3{font-size:1.08rem;margin-bottom:18px;color:#fff}
.price .amt{display:flex;align-items:baseline;gap:4px;margin-bottom:4px}
.price .amt .cur{font-size:1.3rem;font-weight:600;color:var(--gold)}
.price .amt .num{font-size:3rem;font-weight:700;color:var(--gold);letter-spacing:-.03em;line-height:1;font-family:var(--f-display)}
.price .per{font-size:.8rem;color:var(--t4);margin-bottom:22px}
.price ul{display:grid;gap:10px;margin-bottom:24px;flex:1}
.price li{display:flex;gap:10px;font-size:.88rem;color:var(--t2);line-height:1.55}
.price li::before{content:"→";color:var(--gold);font-weight:700;flex-shrink:0}

/* ---------- 14. Problem statements ---------- */
.filters{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:18px}
.chip{
  padding:8px 16px;border-radius:999px;border:1px solid var(--border);
  background:rgba(124,58,237,.08);font-size:.83rem;font-weight:600;color:var(--t3);cursor:pointer;
  transition:all .22s var(--ease);display:inline-flex;align-items:center;gap:8px;
}
.chip:hover{border-color:var(--border-strong);color:#fff;transform:translateY(-2px)}
.chip.active{background:var(--purple);border-color:var(--purple);color:#fff}
.chip .cnt{font-size:.72rem;opacity:.7}
.chip[data-sdg].active{background:var(--sdg);border-color:var(--sdg);color:#fff}
.chip[data-sdg] .swatch{width:9px;height:9px;border-radius:50%;background:var(--sdg)}
.chip[data-sdg].active .swatch{background:#fff}

.tool-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;margin-bottom:28px}
.searchbar{position:relative;flex:1;min-width:240px;max-width:420px}
.searchbar input{
  width:100%;padding:11px 16px 11px 42px;border-radius:8px;
  background:rgba(255,255,255,.05);border:1.5px solid rgba(124,58,237,.25);
  color:#fff;font-size:.9rem;transition:border-color .2s,box-shadow .2s;
}
.searchbar input::placeholder{color:var(--t5)}
.searchbar input:focus{outline:none;border-color:var(--purple-light);box-shadow:0 0 0 3px rgba(124,58,237,.15)}
.searchbar .ico{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--t4);font-size:.9rem}
.result-count{font-size:.83rem;color:var(--t4);font-weight:500}

.ps-grid{display:grid;gap:14px}
.ps{
  background:rgba(15,17,53,.6);border:1px solid rgba(124,58,237,.15);
  border-radius:var(--r-md);overflow:hidden;transition:background .25s,border-color .25s;
}
.ps:hover{border-color:var(--border-strong)}
.ps.is-open{background:rgba(15,17,53,.95);border-color:color-mix(in srgb,var(--sdg) 40%,transparent)}
.ps-head{width:100%;display:flex;align-items:flex-start;gap:16px;padding:20px;background:none;border:0;cursor:pointer;text-align:left;transition:background .2s}
.ps-head:hover{background:rgba(255,255,255,.02)}
.ps-num{
  flex-shrink:0;width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  background:color-mix(in srgb,var(--sdg) 20%,transparent);
  color:color-mix(in srgb,var(--sdg) 85%,#fff);
  font-weight:800;font-size:.8rem;font-family:var(--f-display);
}
.ps-title{flex:1;min-width:0}
.ps-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}
.ps-title h3{font-size:1rem;margin-bottom:6px;line-height:1.4;color:#fff;font-weight:600}
.ps-title .teaser{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  color:var(--t4);font-size:.82rem;line-height:1.5;
}
.ps.is-open .ps-title .teaser{display:none}
.ps-caret{
  flex-shrink:0;width:26px;height:26px;display:grid;place-items:center;
  color:var(--t5);transition:transform .3s var(--ease),color .2s;font-size:.7rem;
}
.ps.is-open .ps-caret{transform:rotate(180deg);color:var(--gold)}
.ps-body{display:grid;grid-template-rows:0fr;transition:grid-template-rows .4s var(--ease)}
.ps.is-open .ps-body{grid-template-rows:1fr}
.ps-body>div{overflow:hidden}
.ps-content{padding:20px;border-top:1px solid color-mix(in srgb,var(--sdg) 20%,transparent)}
.ps-block{margin-bottom:20px}
.ps-block:last-child{margin-bottom:0}
.ps-block .lbl{font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;font-weight:700;margin-bottom:8px;color:var(--sdg)}
.ps-block:nth-of-type(2) .lbl{color:var(--gold)}
.ps-block:nth-of-type(3) .lbl{color:var(--t4)}
.ps-block p{color:var(--t3);font-size:.9rem;line-height:1.7}
.ps-block ul{display:grid;gap:8px;margin-top:6px}
.ps-block li{display:flex;gap:10px;color:var(--t2);font-size:.88rem;line-height:1.6}
.ps-block li::before{content:"→";color:var(--gold);font-weight:700;flex-shrink:0}
.ps-impact{
  background:rgba(245,158,11,.08);border:1px solid var(--border-gold);border-radius:var(--r-md);
  padding:14px 16px;font-size:.87rem;color:var(--gold-light);display:flex;gap:10px;align-items:flex-start;line-height:1.6;
}
.sdg-chip{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:6px;
  font-size:.66rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;
  background:color-mix(in srgb,var(--sdg) 20%,transparent);color:color-mix(in srgb,var(--sdg) 85%,#fff);
}
.empty-state{padding:60px 20px;text-align:center;color:var(--t4)}
.empty-state strong{color:#fff}

/* ---------- 15. Tabs ---------- */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:28px}
.tab{
  padding:10px 24px;border-radius:999px;border:1px solid transparent;background:transparent;
  cursor:pointer;font-weight:600;font-size:.86rem;color:var(--t4);transition:all .2s var(--ease);
  display:flex;flex-direction:column;align-items:flex-start;gap:1px;min-width:130px;text-align:left;
}
.tab small{font-size:.68rem;font-weight:500;opacity:.75}
.tab:hover{color:#fff;background:rgba(255,255,255,.04)}
.tab.active{background:var(--purple);color:#fff;border-color:var(--purple)}
.tab.active small{color:rgba(255,255,255,.7)}
.tabpanel{display:none;animation:fadeUp .45s var(--ease)}
.tabpanel.active{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}

.stops{display:grid;gap:0;background:rgba(15,17,53,.7);border:1px solid var(--border);border-radius:var(--r-lg);padding:8px 22px;backdrop-filter:blur(12px)}
.stop{display:grid;grid-template-columns:104px 1fr;gap:20px;padding:18px 0;border-bottom:1px solid rgba(124,58,237,.12);align-items:start}
.stop:last-child{border-bottom:0}
.stop .time{font-weight:700;color:var(--gold);font-size:.88rem;display:flex;align-items:center;gap:10px;padding-top:1px;font-family:var(--f-display)}
.stop .time::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--purple);flex-shrink:0;box-shadow:0 0 8px var(--purple)}
.stop h4{font-size:.98rem;margin-bottom:4px;color:#fff;font-weight:600}
.stop p{font-size:.87rem;color:var(--t3);line-height:1.6}
.stop.is-hack .time{color:var(--purple-light)}
.stop.is-hack .time::before{background:var(--gold);box-shadow:0 0 8px var(--gold)}
.stop.is-key{background:linear-gradient(90deg,rgba(245,158,11,.09),transparent 70%);border-radius:var(--r-md);padding-inline:14px;margin-inline:-14px}
.day-note{
  margin-top:22px;padding:16px 18px;border-radius:var(--r-md);
  background:rgba(124,58,237,.08);border:1px solid var(--border);border-left:3px solid var(--gold);
  font-size:.86rem;color:var(--t3);line-height:1.65;
}

/* ---------- 16. FAQ ---------- */
.faq{display:grid;gap:12px;max-width:880px;margin-inline:auto}
.qa{background:rgba(15,17,53,.6);border:1px solid rgba(124,58,237,.15);border-radius:var(--r-md);overflow:hidden;transition:border-color .3s,background .3s}
.qa:hover{border-color:var(--border)}
.qa.is-open{border-color:var(--border-strong);background:rgba(15,17,53,.95)}
.qa-q{width:100%;display:flex;align-items:center;gap:14px;padding:18px 20px;background:none;border:0;cursor:pointer;text-align:left;font-weight:600;color:#fff;font-size:.96rem;font-family:var(--f-display)}
.qa-q .mark{
  width:26px;height:26px;border-radius:8px;flex-shrink:0;display:grid;place-items:center;
  background:rgba(245,158,11,.12);color:var(--gold);font-weight:700;
  transition:transform .35s var(--ease),background .2s,color .2s;
}
.qa.is-open .mark{transform:rotate(45deg);background:var(--gold);color:var(--bg-deep)}
.qa-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .38s var(--ease)}
.qa.is-open .qa-a{grid-template-rows:1fr}
.qa-a>div{overflow:hidden}
.qa-a p{padding:0 20px 20px 60px;color:var(--t3);font-size:.92rem;line-height:1.7}

/* ---------- 17. Forms ---------- */
.form-shell{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:28px;align-items:start}
.fieldset{
  background:rgba(15,17,53,.8);border:1px solid rgba(124,58,237,.18);border-radius:var(--r-lg);
  padding:28px;margin-bottom:22px;backdrop-filter:blur(12px);
}
.fs-head{display:flex;align-items:center;gap:12px;margin-bottom:22px;flex-wrap:wrap}
.fs-head .step{
  width:30px;height:30px;border-radius:9px;display:grid;place-items:center;flex-shrink:0;
  background:var(--purple);color:#fff;font-weight:800;font-size:.85rem;font-family:var(--f-display);
}
.fs-head h3{font-size:1.06rem;color:#fff}
.fs-head .hint{margin-left:auto;font-size:.76rem;color:var(--t4);font-weight:600}

.field{display:flex;flex-direction:column;gap:6px;margin-bottom:18px}
.field label{font-size:.78rem;font-weight:600;color:var(--t2)}
.field label .req{color:var(--err)}
.field .help{font-size:.74rem;color:var(--t4);line-height:1.55}
.field .help strong{color:var(--gold)}
.field input,.field select,.field textarea{
  width:100%;padding:11px 14px;border-radius:8px;
  background:rgba(255,255,255,.05);border:1.5px solid rgba(124,58,237,.25);
  color:#fff;font-size:.9rem;transition:border-color .2s,box-shadow .2s;
}
.field textarea{resize:vertical;min-height:90px}
.field input::placeholder{color:var(--t5)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--purple-light);box-shadow:0 0 0 3px rgba(124,58,237,.15);
}
.field select option{background:#0f1135;color:#fff}
.field.invalid input,.field.invalid select{border-color:var(--err);box-shadow:0 0 0 3px rgba(239,68,68,.12)}
.field .err-msg{font-size:.74rem;color:var(--err);font-weight:600;display:none}
.field.invalid .err-msg{display:block}
.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}

.member{
  border:1px solid rgba(124,58,237,.18);border-radius:var(--r-md);padding:22px;margin-bottom:16px;
  background:rgba(18,21,56,.6);animation:fadeUp .35s var(--ease);
}
.member-head{display:flex;align-items:center;gap:10px;margin-bottom:18px;flex-wrap:wrap}
.member-head .idx{
  width:26px;height:26px;border-radius:8px;background:rgba(124,58,237,.25);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:.78rem;font-family:var(--f-display);
}
.member-head strong{font-size:.9rem;color:#fff;font-weight:600}
.member-head .lead-tag{
  font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;color:var(--gold);
  font-weight:800;background:rgba(245,158,11,.1);border:1px solid var(--border-gold);
  padding:2px 9px;border-radius:999px;
}
.member-head .actions{margin-left:auto;display:flex;gap:8px;align-items:center}
.cat-badge{
  font-size:.65rem;font-weight:700;letter-spacing:.04em;padding:4px 11px;border-radius:999px;
  border:1px solid var(--border);background:rgba(124,58,237,.1);color:var(--t3);white-space:nowrap;
}
.cat-badge[data-cat="A"]{background:rgba(16,185,129,.12);color:#34d399;border-color:rgba(16,185,129,.3)}
.cat-badge[data-cat="B"]{background:rgba(124,58,237,.18);color:var(--purple-light);border-color:var(--border-strong)}
.cat-badge[data-cat="C"]{background:rgba(245,158,11,.1);color:var(--gold);border-color:var(--border-gold)}
.icon-btn{
  width:28px;height:28px;border-radius:8px;border:1px solid rgba(239,68,68,.3);
  background:rgba(239,68,68,.08);cursor:pointer;display:grid;place-items:center;
  color:var(--err);font-weight:700;transition:all .2s;line-height:1;
}
.icon-btn:hover{background:var(--err);color:#fff;border-color:var(--err)}

.seg{display:flex;border:1.5px solid rgba(124,58,237,.25);border-radius:8px;overflow:hidden;background:rgba(255,255,255,.05)}
.seg label{
  flex:1;cursor:pointer;text-align:center;padding:9px 6px;font-size:.8rem;font-weight:600;
  color:var(--t4);transition:background .2s,color .2s;border-right:1px solid rgba(124,58,237,.2);
}
.seg label:last-child{border-right:0}
.seg label:hover{color:#fff;background:rgba(255,255,255,.04)}
.seg label input{position:absolute;opacity:0;pointer-events:none;width:0;height:0}
.seg label.on{background:var(--purple);color:#fff}

.checkline{display:flex;gap:12px;align-items:flex-start;font-size:.86rem;color:var(--t3);margin-bottom:14px;line-height:1.6}
.checkline input{margin-top:3px;width:17px;height:17px;accent-color:var(--purple);flex-shrink:0}
.checkline a{color:var(--gold);font-weight:600;text-decoration:underline}

.notice{display:flex;gap:12px;padding:14px 16px;border-radius:var(--r-md);font-size:.85rem;border:1px solid;margin-bottom:20px;line-height:1.6}
.notice .ni{flex-shrink:0;font-size:1rem;line-height:1.4}
.notice strong{font-weight:700}
.notice--info{background:rgba(124,58,237,.09);border-color:var(--border);color:var(--t2)}
.notice--info strong{color:var(--purple-light)}
.notice--warn{background:rgba(245,158,11,.08);border-color:var(--border-gold);color:var(--t2)}
.notice--warn strong{color:var(--gold)}
.notice--err{background:rgba(239,68,68,.08);border-color:rgba(239,68,68,.3);color:var(--t2)}
.notice--err strong{color:#fca5a5}
.notice--ok{background:rgba(16,185,129,.08);border-color:rgba(16,185,129,.3);color:var(--t2)}
.notice--ok strong{color:#34d399}

.rail{position:sticky;top:calc(var(--nav-h) + 20px)}
.summary{
  background:linear-gradient(135deg,#2d1b69,#1e1050,#2d1b69);
  border:1px solid var(--border-strong);border-radius:var(--r-lg);padding:26px;
  box-shadow:var(--shadow-lg);color:var(--t2);
}
.summary h3{color:#fff;font-size:1rem;margin-bottom:4px}
.summary .sub{font-size:.76rem;color:var(--t4);margin-bottom:22px}
.sum-line{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.1);font-size:.86rem}
.sum-line .who{color:var(--t2);min-width:0}
.sum-line .who small{display:block;color:var(--t4);font-size:.72rem}
.sum-line .amt{font-weight:700;color:#fff;white-space:nowrap;font-family:var(--f-display)}
.sum-total{display:flex;justify-content:space-between;align-items:baseline;margin-top:20px;padding-top:18px;border-top:2px solid var(--border-gold)}
.sum-total .lbl{font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--t4);font-weight:700}
.sum-total .val{font-size:2rem;font-weight:700;color:var(--gold);letter-spacing:-.02em;font-family:var(--f-display)}
.summary .fine{font-size:.72rem;color:var(--t4);margin-top:16px;line-height:1.6}
.checks{display:grid;gap:10px;margin:20px 0 4px}
.check{display:flex;gap:10px;align-items:center;font-size:.8rem;color:var(--t4);transition:color .25s}
.check .box{
  width:18px;height:18px;border-radius:5px;border:1.5px solid rgba(255,255,255,.25);flex-shrink:0;
  display:grid;place-items:center;font-size:.66rem;color:transparent;transition:all .25s var(--ease);
}
.check.done{color:var(--t2)}
.check.done .box{background:var(--ok);border-color:var(--ok);color:#fff}

.success{
  max-width:680px;margin:0 auto;text-align:center;
  background:rgba(15,17,53,.9);border:1px solid var(--border-strong);
  border-radius:var(--r-xl);padding:48px 34px;box-shadow:var(--shadow-lg);backdrop-filter:blur(12px);
}
.success .tick{
  width:74px;height:74px;border-radius:50%;margin:0 auto 24px;display:grid;place-items:center;
  background:linear-gradient(140deg,#34d399,var(--ok));color:var(--bg-deep);font-size:2rem;
  box-shadow:0 0 40px rgba(16,185,129,.4);animation:pop .5s var(--ease);
}
@keyframes pop{from{transform:scale(.5);opacity:0}to{transform:scale(1);opacity:1}}
.regid{
  display:inline-block;margin:20px 0;padding:12px 24px;border-radius:var(--r-md);
  background:rgba(124,58,237,.12);border:1px dashed var(--border-strong);
  font-family:ui-monospace,'SFMono-Regular',Menlo,Consolas,monospace;font-weight:700;
  letter-spacing:.14em;color:var(--gold);font-size:1.05rem;
}
.recap{text-align:left;margin:26px 0;border:1px solid var(--border);border-radius:var(--r-md);overflow:hidden}
.recap div{display:flex;justify-content:space-between;gap:14px;padding:11px 16px;font-size:.86rem;border-bottom:1px solid rgba(124,58,237,.12)}
.recap div:last-child{border-bottom:0}
.recap div span:first-child{color:var(--t4)}
.recap div span:last-child{font-weight:600;color:#fff;text-align:right}

/* ---------- 18. People ---------- */
.people{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:20px}
.person{
  background:rgba(15,17,53,.8);border:1px solid rgba(124,58,237,.18);border-radius:var(--r-lg);
  padding:28px;text-align:center;backdrop-filter:blur(12px);
  transition:border-color .3s,box-shadow .3s,transform .3s var(--ease);
}
.person:hover{border-color:var(--border-strong);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.person .av{
  width:66px;height:66px;border-radius:50%;margin:0 auto 18px;display:grid;place-items:center;
  background:rgba(124,58,237,.8);color:#fff;font-weight:700;font-size:1.15rem;
  border:1px solid var(--border-strong);box-shadow:0 0 24px rgba(124,58,237,.3);font-family:var(--f-display);
}
.person h3{font-size:1.02rem;margin-bottom:6px;color:#fff}
.person .role{font-size:.78rem;color:var(--gold);font-weight:700;margin-bottom:14px;letter-spacing:.03em}
.person .type{font-size:.85rem;color:var(--t3);line-height:1.6}

/* ---------- 19. Sponsors ---------- */
.sponsor-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px}
.sponsor{
  background:rgba(15,17,53,.8);border:1px solid rgba(124,58,237,.18);border-radius:var(--r-lg);
  padding:26px;text-align:center;backdrop-filter:blur(12px);
  transition:border-color .3s,transform .3s var(--ease);
}
.sponsor:hover{border-color:var(--border-gold);transform:translateY(-3px)}
.sponsor .logo{
  height:58px;border-radius:var(--r-md);display:grid;place-items:center;margin-bottom:16px;
  background:rgba(124,58,237,.12);border:1px solid var(--border);
  color:#fff;font-weight:700;letter-spacing:.05em;font-size:.86rem;padding:0 10px;
  line-height:1.3;font-family:var(--f-display);
}
.sponsor h3{font-size:.95rem;margin-bottom:7px;color:#fff}
.sponsor p{font-size:.81rem;color:var(--t4);line-height:1.6}
.sponsor.placeholder .logo{border:1px dashed rgba(255,255,255,.16);background:transparent;color:var(--t5);font-weight:500}

/* ---------- 20. Footer ---------- */
.footer{background:var(--bg-deep);color:var(--t4);padding:64px 0 0;border-top:1px solid var(--border-soft)}
.f-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:44px}
.footer h4{color:#fff;font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;margin-bottom:18px}
.footer a{color:var(--t4);font-size:.88rem;transition:color .2s}
.footer a:hover{color:var(--gold)}
.f-links{display:grid;gap:10px}
.f-about p{font-size:.87rem;line-height:1.75;margin-bottom:18px;max-width:40ch;color:var(--t4)}
.f-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.f-brand b{color:#fff;font-weight:700;font-family:var(--f-display);font-size:1rem}
.socials{display:flex;gap:9px}
.socials a{
  width:36px;height:36px;border-radius:8px;border:1px solid var(--border);
  background:rgba(124,58,237,.08);display:grid;place-items:center;font-size:.7rem;
  font-weight:700;color:var(--t3);transition:all .2s;
}
.socials a:hover{background:var(--gold);border-color:var(--gold);color:var(--bg-deep);transform:translateY(-2px)}
.f-bottom{border-top:1px solid var(--border-soft);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;font-size:.8rem}
/* only the copyright line left in the bar -> centre it */
.f-bottom:has(> :only-child){justify-content:center;text-align:center}
.f-bottom .legal{display:flex;gap:20px;flex-wrap:wrap}

/* ---------- 21. Misc ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
.page-head{
  padding:64px 0 56px;position:relative;isolation:isolate;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(124,58,237,.22) 0%, transparent 60%),
    radial-gradient(ellipse at 85% 70%, rgba(245,158,11,.07) 0%, transparent 50%),
    var(--bg-deep);
  border-bottom:1px solid var(--border-soft);
}
.page-head h1{font-size:clamp(2rem,5vw,3.2rem);color:#fff;margin-bottom:16px;font-weight:700}
.page-head h1 .hi{color:var(--gold)}
.page-head p{color:var(--t3);max-width:68ch;line-height:1.7}
.crumbs{font-size:.75rem;color:var(--t4);margin-bottom:18px;letter-spacing:.04em}
.crumbs a:hover{color:var(--gold)}
.divider{height:1px;background:var(--border-soft);margin:48px 0}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.legal-body{max-width:820px}
.legal-body h2{font-size:1.35rem;margin:38px 0 14px;color:#fff}
.legal-body h3{font-size:1rem;margin:24px 0 10px;color:var(--gold)}
.legal-body p{color:var(--t3);font-size:.92rem;margin-bottom:12px;line-height:1.75}
.legal-body em{color:var(--t4)}
.legal-body li{color:var(--t3);font-size:.92rem;margin-bottom:9px;line-height:1.7}
.legal-body ul{list-style:none;padding-left:0;margin-bottom:16px;display:grid;gap:9px}
.legal-body ul li{display:flex;gap:10px}
.legal-body ul li::before{content:"→";color:var(--gold);font-weight:700;flex-shrink:0}
.legal-body strong{color:#fff}
.placeholder-flag{
  background:rgba(245,158,11,.08);border:1px dashed var(--border-gold);border-radius:var(--r-md);
  padding:16px 18px;font-size:.85rem;color:var(--gold);font-weight:600;margin-bottom:28px;line-height:1.6;
}
.to-top{
  position:fixed;right:20px;bottom:20px;width:44px;height:44px;border-radius:10px;cursor:pointer;
  border:1px solid var(--border-strong);background:rgba(15,17,53,.9);backdrop-filter:blur(12px);
  color:var(--gold);display:grid;place-items:center;z-index:50;
  opacity:0;pointer-events:none;transform:translateY(12px);transition:all .3s var(--ease);
}
.to-top.show{opacity:1;pointer-events:auto;transform:none}
.to-top:hover{background:var(--purple);color:#fff;border-color:var(--purple)}

/* ---------- 22. Responsive ---------- */
@media (max-width:1024px){
  .form-shell{grid-template-columns:1fr}
  .rail{position:static}
  .f-top{grid-template-columns:1fr 1fr}
  .facts{grid-template-columns:1fr 1fr}
  .stat-band .row{grid-template-columns:repeat(3,1fr);gap:22px}
}
@media (max-width:900px){
  .nav-toggle{display:grid}
  .nav-links{
    position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;
    background:rgba(6,7,26,.97);backdrop-filter:blur(16px);padding:14px 24px 22px;gap:2px;
    border-bottom:1px solid var(--border);box-shadow:0 20px 40px rgba(0,0,0,.6);
    transform:translateY(-14px);opacity:0;pointer-events:none;transition:all .3s var(--ease);
    max-height:70vh;overflow-y:auto;
  }
  .nav-links.open{transform:none;opacity:1;pointer-events:auto}
  .nav-links a{padding:13px 12px;font-size:.95rem}
  .nav-links a.active::after{display:none}
  .nav-cta{display:none}
  .two-col{grid-template-columns:1fr}
  .section{padding:72px 0}
  .logo-card{padding:34px 32px}
}
@media (max-width:640px){
  .wrap{padding-inline:16px}
  .facts{grid-template-columns:1fr}
  .fact{padding:16px 18px}
  .row{grid-template-columns:1fr}
  .f-top{grid-template-columns:1fr;gap:28px}
  .ps-head{padding:16px;gap:12px}
  .ps-content{padding:16px}
  .stops{padding:6px 16px}
  .stop{grid-template-columns:1fr;gap:6px}
  .timeline::before{left:19px}
  .tl-item{grid-template-columns:40px 1fr;gap:14px}
  .tl-dot{width:40px;height:40px;border-radius:11px;font-size:.58rem}
  .tl-body{padding:20px}
  .card,.price,.fieldset,.summary,.person,.sponsor,.track{padding:22px 18px}
  .topbar .org .sub{display:none}
  .tab{min-width:0;flex:1 1 44%;align-items:center;text-align:center}
  .success{padding:34px 20px}
  .section{padding:64px 0}
  .logo-card{padding:28px 22px;border-radius:16px}
  .stat-band .row{grid-template-columns:repeat(2,1fr)}
  .qa-a p{padding-left:20px}
  .hero-cta{flex-direction:column;align-items:stretch;width:100%}
  .hero-cta .btn{width:100%}
  .phase-pill{flex:1 1 100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
  .logo-card{animation:none}
}
@media print{
  .nav,.topbar,.footer,.btn,.to-top{display:none}
  body{background:#fff;color:#000}
}

/* ==========================================================================
   23. Real brand assets + legacy photo gallery
   ========================================================================== */

/* --- logos in the top bar --- */
.topbar .org{gap:12px}
.org-logo{height:30px;width:auto;max-width:130px;object-fit:contain;flex-shrink:0}
.ieee-mark img{height:22px;width:auto;max-width:90px;object-fit:contain}
.topbar .org .name{display:flex;flex-direction:column;line-height:1.25}
.topbar .org .name b{color:var(--t2);font-weight:600;letter-spacing:.06em}

/* --- the real wordmark inside the floating hero card --- */
.logo-card{padding:30px 34px}
.logo-card .mark{
  display:block;width:min(430px,72vw);height:auto;border-radius:10px;
  box-shadow:0 0 40px rgba(0,0,0,.35);
}

/* --- legacy photo gallery --- */
.gallery{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px;margin-top:8px;
}
.gallery button{
  position:relative;padding:0;border:1px solid var(--border);border-radius:var(--r-md);
  overflow:hidden;cursor:pointer;background:var(--bg-card);aspect-ratio:3/2;display:block;
  transition:border-color .3s,transform .3s var(--ease),box-shadow .3s;
}
.gallery button:hover{border-color:var(--border-gold);transform:translateY(-3px);box-shadow:var(--shadow-md)}
.gallery img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s var(--ease),opacity .3s}
.gallery button:hover img{transform:scale(1.06)}
.gallery button::after{
  content:"⤢";position:absolute;right:10px;bottom:8px;width:28px;height:28px;border-radius:8px;
  display:grid;place-items:center;background:rgba(6,7,26,.75);color:var(--gold);
  font-size:.8rem;opacity:0;transition:opacity .3s;backdrop-filter:blur(6px);
}
.gallery button:hover::after{opacity:1}

/* --- lightbox --- */
.lightbox{
  position:fixed;inset:0;z-index:200;display:none;place-items:center;
  background:rgba(3,4,14,.94);backdrop-filter:blur(8px);padding:24px;
}
.lightbox.open{display:grid;animation:fadeUp .25s var(--ease)}
.lightbox img{
  max-width:min(1180px,94vw);max-height:82vh;width:auto;height:auto;
  border-radius:var(--r-md);border:1px solid var(--border-strong);box-shadow:var(--shadow-lg);
}
.lightbox .lb-caption{
  position:absolute;left:0;right:0;bottom:26px;text-align:center;
  color:var(--t4);font-size:.82rem;letter-spacing:.04em;
}
.lightbox .lb-btn{
  position:absolute;width:46px;height:46px;border-radius:50%;cursor:pointer;
  border:1px solid var(--border-strong);background:rgba(15,17,53,.9);color:#fff;
  display:grid;place-items:center;font-size:1.1rem;transition:all .2s;
}
.lightbox .lb-btn:hover{background:var(--purple);border-color:var(--purple)}
.lightbox .lb-close{top:22px;right:22px}
.lightbox .lb-prev{left:22px;top:50%;transform:translateY(-50%)}
.lightbox .lb-next{right:22px;top:50%;transform:translateY(-50%)}
body.lb-open{overflow:hidden}

/* --- footer: organizer logo lockup + contact rows --- */
.f-logos{display:flex;align-items:center;gap:18px;margin-bottom:18px;flex-wrap:wrap}
.f-logos img{height:34px;width:auto;max-width:120px;object-fit:contain;opacity:.9;transition:opacity .2s}
.f-logos img:hover{opacity:1}
.contact-row{display:flex;gap:10px;align-items:flex-start;font-size:.88rem;color:var(--t4);margin-bottom:10px}
.contact-row .ci{color:var(--gold);flex-shrink:0;width:16px;text-align:center}
.contact-row a{font-size:.88rem}
.socials a{width:auto;min-width:36px;padding:0 11px}

@media (max-width:640px){
  .brand-mark{width:38px;height:38px;border-radius:9px}
  .org-logo{height:24px;max-width:96px}
  .ieee-mark img{height:18px}
  .logo-card{padding:22px 20px}
  .logo-card .mark{width:min(300px,74vw)}
  .gallery{grid-template-columns:1fr 1fr;gap:10px}
  .lightbox{padding:12px}
  .lightbox .lb-prev{left:8px}
  .lightbox .lb-next{right:8px}
  .lightbox .lb-close{top:10px;right:10px}
}