/* =========================================================
   BKP INSTITUT — design tokens
   ========================================================= */
:root{
  --bg:            #0a0f1a;
  --bg-alt:        #0d1420;
  --panel:         #121b2c;
  --panel-2:       #161f33;
  --line:          #24304a;
  --line-soft:     #1a2335;
  --gold:          #cf9f45;
  --gold-bright:   #e7bd5f;
  --gold-dim:      #8a713a;
  --white:         #f4f6f9;
  --muted:         #98a5bb;
  --muted-dim:     #66748d;
  --radius-s:      6px;
  --radius-m:      12px;
  --radius-l:      20px;
  --maxw:          1180px;
  --font-display:  'Sora', sans-serif;
  --font-body:     'Inter', sans-serif;
  --font-mono:     'JetBrains Mono', monospace;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--bg);
  color:var(--white);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ font-family:var(--font-display); margin:0; font-weight:700; letter-spacing:-0.01em; }
p{ margin:0; }
button{ font-family:inherit; cursor:pointer; }

.wrap{ max-width:var(--maxw); margin:0 auto; padding:0 28px; }

.eyebrow{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--font-mono); font-size:12.5px; letter-spacing:.14em; text-transform:uppercase;
  color:var(--gold-bright);
}
.eyebrow::before{ content:""; width:22px; height:1px; background:var(--gold-bright); display:inline-block; }

.section{ padding:104px 0; position:relative; }
.section-tight{ padding:72px 0; }
.section-head{ max-width:620px; margin-bottom:52px; }
.section-head h2{ font-size:clamp(28px,3.4vw,40px); margin-top:14px; line-height:1.15; }
.section-head p{ color:var(--muted); margin-top:16px; font-size:16.5px; }

.on-dark{ background:var(--bg); }
.on-panel{ background:var(--bg-alt); border-top:1px solid var(--line-soft); border-bottom:1px solid var(--line-soft); }

/* buttons */
.btn{
  font-family:var(--font-mono); font-size:13px; letter-spacing:.06em; text-transform:uppercase;
  display:inline-flex; align-items:center; gap:10px;
  padding:15px 26px; border-radius:var(--radius-s); border:1px solid transparent;
  transition:transform .15s ease, background .15s ease, border-color .15s ease, color .15s ease;
  white-space:nowrap;
}
.btn:hover{ transform:translateY(-1px); }
.btn-gold{ background:var(--gold); color:#141017; font-weight:600; }
.btn-gold:hover{ background:var(--gold-bright); }
.btn-outline{ border-color:var(--line); color:var(--white); background:transparent; }
.btn-outline:hover{ border-color:var(--gold-bright); color:var(--gold-bright); }
.btn-ghost{ color:var(--gold-bright); padding:6px 0; }
.btn-ghost svg{ transition:transform .15s ease; }
.btn-ghost:hover svg{ transform:translateX(4px); }

/* =========================================================
   Header
   ========================================================= */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(10,15,26,.86); backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-soft);
}
.site-header .wrap{ display:flex; align-items:center; justify-content:space-between; height:82px; }
.brand{ display:flex; align-items:center; gap:12px; }
.brand-mark{
  width:38px; height:38px; border:1px solid var(--gold); border-radius:4px;
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-display); font-weight:700; color:var(--gold-bright); font-size:16px;
}
.brand-text{ display:flex; flex-direction:column; line-height:1.1; }
.brand-text strong{ font-family:var(--font-display); font-size:19px; letter-spacing:.01em; }
.brand-text span{ font-family:var(--font-mono); font-size:9.5px; letter-spacing:.16em; color:var(--muted-dim); margin-top:3px; }

.main-nav{ display:flex; align-items:center; gap:34px; }
.main-nav a{
  font-family:var(--font-mono); font-size:12.5px; letter-spacing:.08em; text-transform:uppercase;
  color:var(--muted); transition:color .15s ease; position:relative; margin-left:34px;
}
.main-nav a:first-child{ margin-left:0; }
.main-nav a:hover{ color:var(--white); }
.header-actions{ display:flex; align-items:center; gap:22px; }
.nav-toggle{ display:none; background:none; border:1px solid var(--line); border-radius:6px; padding:8px 10px; }
.nav-toggle span{ display:block; width:18px; height:1.5px; background:var(--white); margin:4px 0; }

/* =========================================================
   Hero
   ========================================================= */
.hero{
  position:relative; padding:96px 0 88px; overflow:hidden;
  background:
    radial-gradient(ellipse 900px 500px at 82% -10%, rgba(207,159,69,.14), transparent 60%),
    var(--bg);
}
.hero::before{
  content:""; position:absolute; inset:0; opacity:.5; pointer-events:none;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 900px 520px at 70% 20%, black, transparent 75%);
}
.hero .wrap{ position:relative; display:grid; grid-template-columns:1.1fr .9fr; gap:56px; align-items:start; }
.hero-copy h1{
  font-size:clamp(38px,5.4vw,64px); line-height:1.06; margin-top:22px; letter-spacing:-.015em;
}
.hero-copy h1 em{ font-style:normal; color:var(--gold-bright); }
.hero-lead{ color:var(--muted); font-size:17.5px; margin-top:26px; max-width:520px; }
.hero-actions{ display:flex; gap:14px; margin-top:36px; flex-wrap:wrap; }

.quote-card{
  border-left:2px solid var(--gold); padding:16px 0 16px 22px; margin-top:40px; max-width:480px;
}
.quote-card strong{ display:block; font-size:16px; margin-bottom:8px; }
.quote-card p{ color:var(--muted); font-size:14.5px; }

.hero-panel{
  border:1px solid var(--line); border-radius:var(--radius-l); background:var(--panel);
  padding:30px; margin-top:12px;
}
.hero-panel .eyebrow{ margin-bottom:16px; }
.hero-stat{ display:flex; align-items:baseline; gap:10px; margin-bottom:22px; }
.hero-stat .num{ font-family:var(--font-display); font-size:40px; color:var(--gold-bright); }
.hero-stat .lbl{ font-family:var(--font-mono); font-size:12px; color:var(--muted); letter-spacing:.04em; }
.hero-panel-rule{ height:1px; background:var(--line-soft); margin:22px 0; }
.hero-panel dl{ display:grid; gap:14px; }
.hero-panel dt{ font-family:var(--font-mono); font-size:11px; text-transform:uppercase; letter-spacing:.1em; color:var(--muted-dim); margin-bottom:4px; }
.hero-panel dd{ margin:0; font-size:14.5px; color:var(--white); }

/* =========================================================
   Mission / About
   ========================================================= */
.mission-grid{ display:grid; grid-template-columns:.85fr 1.15fr; gap:64px; align-items:start; }
.mission-grid h2{ font-size:clamp(26px,3vw,36px); line-height:1.2; }
.mission-copy p{ color:var(--muted); margin-bottom:18px; font-size:16px; }
.mission-copy p:last-child{ margin-bottom:0; }
.mission-tag{ font-family:var(--font-mono); font-size:10px; color:var(--gold-bright); letter-spacing:.08em; text-transform:uppercase; }

/* =========================================================
   Pillars
   ========================================================= */
.pillars{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.pillar-card{
  background:var(--panel); border:1px solid var(--line-soft); border-radius:var(--radius-m);
  padding:34px 30px 30px; display:flex; flex-direction:column; transition:border-color .2s ease, transform .2s ease;
}
.pillar-card:hover{ border-color:var(--gold-dim); transform:translateY(-3px); }
.pillar-idx{ font-family:var(--font-mono); color:var(--gold-bright); font-size:13px; letter-spacing:.08em; margin-bottom:18px; }
.pillar-card h3{ font-size:21px; margin-bottom:8px; }
.pillar-sub{ font-family:var(--font-mono); font-size:11.5px; color:var(--muted-dim); text-transform:uppercase; letter-spacing:.06em; margin-bottom:16px; }
.pillar-card > p{ color:var(--muted); font-size:14.5px; margin-bottom:22px; }
.pillar-list{ display:grid; gap:10px; margin-top:auto; }
.pillar-list li{
  font-size:13.5px; color:var(--white); padding-left:16px; position:relative; line-height:1.45;
}
.pillar-list li::before{ content:""; position:absolute; left:0; top:8px; width:5px; height:5px; background:var(--gold); border-radius:1px; }

/* =========================================================
   Conference band
   ========================================================= */
.conf-band{
  background:linear-gradient(160deg,var(--panel-2),var(--bg-alt));
  border:1px solid var(--line-soft); border-radius:var(--radius-l);
  padding:52px; position:relative; overflow:hidden;
}
.conf-top{ display:flex; justify-content:space-between; align-items:flex-end; gap:30px; flex-wrap:wrap; margin-bottom:40px; }
.conf-top h2{ font-size:clamp(26px,3.4vw,38px); margin-top:14px; max-width:520px; }
.conf-date{ font-family:var(--font-mono); color:var(--gold-bright); font-size:15px; text-align:right; white-space:nowrap; }
.conf-date .d{ font-size:22px; display:block; margin-bottom:4px; }
.conf-lead{ color:var(--muted); max-width:640px; margin-bottom:40px; font-size:16px; }
.conf-questions{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line-soft); border:1px solid var(--line-soft); border-radius:var(--radius-m); overflow:hidden; }
.conf-q{ background:var(--bg-alt); padding:26px 24px; }
.conf-q h4{ font-size:15px; margin-bottom:8px; line-height:1.35; }
.conf-q p{ color:var(--muted); font-size:13.5px; }

/* =========================================================
   Timeline rotator (signature component)
   ========================================================= */
.timeline{
  border:1px solid var(--line-soft); border-radius:var(--radius-l); overflow:hidden; background:var(--panel);
}
.timeline-head{ display:flex; align-items:center; justify-content:space-between; padding:26px 30px; border-bottom:1px solid var(--line-soft); flex-wrap:wrap; gap:16px; }
.timeline-head h2{ font-size:clamp(24px,3vw,32px); margin-top:10px; }
.timeline-tabs{ display:flex; border-bottom:1px solid var(--line-soft); }
.timeline-tab{
  flex:1; background:transparent; border:none; border-right:1px solid var(--line-soft);
  color:var(--muted-dim); font-family:var(--font-mono); padding:18px 24px; text-align:left;
  display:flex; align-items:center; justify-content:space-between; transition:background .15s ease, color .15s ease;
}
.timeline-tab:last-child{ border-right:none; }
.timeline-tab .yr{ font-size:22px; font-weight:600; }
.timeline-tab .lb{ font-size:10.5px; letter-spacing:.1em; text-transform:uppercase; }
.timeline-tab.active{ background:var(--bg-alt); color:var(--gold-bright); }
.timeline-tab:not(.active):hover{ color:var(--white); background:rgba(255,255,255,.02); }

.timeline-panels{ position:relative; }
.timeline-panel{ display:none; padding:40px; grid-template-columns:.9fr 1.1fr; gap:48px; }
.timeline-panel.active{ display:grid; animation:fadein .35s ease; }
@keyframes fadein{ from{opacity:0; transform:translateY(6px);} to{opacity:1; transform:translateY(0);} }
.tl-meta{ display:flex; align-items:flex-start; gap:20px; }
.tl-num{ font-family:var(--font-display); font-size:52px; color:var(--gold-bright); line-height:1; opacity:.85; }
.tl-meta-text h3{ font-size:20px; margin-bottom:6px; line-height:1.3; }
.tl-meta-text span{ font-family:var(--font-mono); font-size:12px; color:var(--muted-dim); letter-spacing:.06em; text-transform:uppercase; }
.tl-body p{ color:var(--muted); font-size:14.5px; margin-bottom:14px; }
.tl-body p:last-child{ margin-bottom:0; }
.tl-tag{
  display:inline-flex; align-items:center; gap:8px; margin-top:18px;
  font-family:var(--font-mono); font-size:11.5px; color:var(--gold-bright); border:1px solid var(--gold-dim);
  padding:8px 14px; border-radius:var(--radius-s); letter-spacing:.05em; text-transform:uppercase;
}

/* =========================================================
   Events carousel
   ========================================================= */
.carousel-head{ display:flex; align-items:flex-end; justify-content:space-between; margin-bottom:32px; gap:20px; flex-wrap:wrap; }
.carousel-nav{ display:flex; gap:10px; }
.car-btn{
  width:44px; height:44px; border-radius:50%; border:1px solid var(--line); background:var(--panel);
  color:var(--white); display:flex; align-items:center; justify-content:center; transition:border-color .15s ease,color .15s ease;
}
.car-btn:hover{ border-color:var(--gold-bright); color:var(--gold-bright); }
.carousel-track{
  display:flex; gap:22px; overflow-x:auto; scroll-snap-type:x mandatory; padding-bottom:8px;
  scrollbar-width:none;
}
.carousel-track::-webkit-scrollbar{ display:none; }
.event-card{
  scroll-snap-align:start; flex:0 0 300px; background:var(--panel); border:1px solid var(--line-soft);
  border-radius:var(--radius-m); overflow:hidden; display:flex; flex-direction:column;
}
.event-card .thumb{ height:180px; overflow:hidden; }
.event-card .thumb img{ width:100%; height:100%; object-fit:cover; }
.event-card .body{ padding:22px; display:flex; flex-direction:column; gap:10px; flex:1; }
.event-card h4{ font-size:16.5px; line-height:1.3; }
.event-card p{ color:var(--muted); font-size:13.5px; line-height:1.55; }
.event-card .btn-ghost{ margin-top:auto; }

/* =========================================================
   Advisory board
   ========================================================= */
.board-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:22px; }
.board-card{ background:var(--panel); border:1px solid var(--line-soft); border-radius:var(--radius-m); padding:26px 22px; display:flex; flex-direction:column; align-items:center; text-align:center; }
.board-photo{
  width:92px; height:92px; border-radius:50%; overflow:hidden; margin-bottom:18px;
  background:var(--bg-alt); border:1px solid var(--line); flex:0 0 auto;
}
.board-photo img{ width:100%; height:100%; object-fit:cover; }
.board-card h4{ font-size:16px; margin-bottom:6px; }
.board-role{ font-size:12.5px; color:var(--gold-bright); font-style:italic; line-height:1.4; margin-bottom:12px; display:block; }
.board-bio{ font-size:13px; color:var(--muted); line-height:1.55; text-align:left; }

/* =========================================================
   Partners
   ========================================================= */
.partners-block{ background:#f4f1ea; border-radius:var(--radius-l); padding:48px; }
.partner-group{ margin-bottom:36px; }
.partner-group:last-child{ margin-bottom:0; }
.partner-group-label{
  font-family:var(--font-mono); font-size:11.5px; letter-spacing:.12em; text-transform:uppercase;
  color:#7a6a45; text-align:center; margin-bottom:24px;
}
.partner-group img{ margin:0 auto; opacity:.92; filter:grayscale(0%); }

/* =========================================================
   Newsletter CTA
   ========================================================= */
.cta-band{
  background:radial-gradient(ellipse 700px 400px at 20% 0%, rgba(207,159,69,.12), transparent 65%), var(--panel);
  border:1px solid var(--line-soft); border-radius:var(--radius-l);
  padding:64px; text-align:center;
}
.cta-band h2{ font-size:clamp(26px,3.6vw,38px); margin-top:14px; }
.cta-band p{ color:var(--muted); max-width:560px; margin:20px auto 0; font-size:16px; }
.cta-band .btn{ margin-top:30px; }

/* =========================================================
   Contact
   ========================================================= */
.contact-grid{ display:grid; grid-template-columns:.8fr 1.2fr; gap:0; border:1px solid var(--line-soft); border-radius:var(--radius-l); overflow:hidden; }
.contact-info{ background:var(--panel); padding:48px 40px; }
.contact-info h2{ font-size:26px; margin-top:14px; margin-bottom:14px; }
.contact-info > p{ color:var(--muted); font-size:14.5px; margin-bottom:34px; }
.contact-item{ padding:16px 0; border-top:1px solid var(--line-soft); }
.contact-item:first-of-type{ border-top:1px solid var(--line-soft); }
.contact-item dt{ font-family:var(--font-mono); font-size:10.5px; text-transform:uppercase; letter-spacing:.1em; color:var(--muted-dim); margin-bottom:6px; }
.contact-item dd{ margin:0; font-size:15px; }
.contact-form{ background:var(--bg-alt); padding:48px 40px; }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:18px; margin-bottom:18px; }
.field label{ display:block; font-family:var(--font-mono); font-size:10.5px; text-transform:uppercase; letter-spacing:.08em; color:var(--muted-dim); margin-bottom:8px; }
.field input, .field select, .field textarea{
  width:100%; background:var(--panel); border:1px solid var(--line); border-radius:var(--radius-s);
  color:var(--white); padding:12px 14px; font-family:var(--font-body); font-size:14.5px;
}
.field textarea{ resize:vertical; min-height:110px; }
.field input:focus, .field select:focus, .field textarea:focus{ outline:none; border-color:var(--gold-bright); }
.field-full{ margin-bottom:18px; }
.check-row{ display:flex; align-items:center; gap:10px; margin-bottom:24px; }
.check-row input{ width:16px; height:16px; accent-color:var(--gold); }
.check-row label{ font-size:13px; color:var(--muted); }
.form-note{ font-size:12px; color:var(--muted-dim); margin-top:16px; line-height:1.5; }

/* =========================================================
   Footer
   ========================================================= */
.site-footer{ border-top:1px solid var(--line-soft); padding:64px 0 28px; }
.footer-top{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; margin-bottom:48px; }
.footer-brand p{ color:var(--muted-dim); font-size:13.5px; margin-top:16px; max-width:260px; }
.footer-col h5{ font-family:var(--font-mono); font-size:11px; letter-spacing:.1em; text-transform:uppercase; color:var(--gold-bright); margin-bottom:16px; }
.footer-col ul{ display:grid; gap:11px; }
.footer-col a{ color:var(--muted); font-size:14px; transition:color .15s ease; }
.footer-col a:hover{ color:var(--white); }
.footer-bottom{ border-top:1px solid var(--line-soft); padding-top:24px; display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px; }
.footer-bottom p{ color:var(--muted-dim); font-size:12.5px; }
.footer-bottom a{ color:var(--muted-dim); font-size:12.5px; }
.footer-bottom a:hover{ color:var(--gold-bright); }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width:980px){
  .hero .wrap{ grid-template-columns:1fr; }
  .mission-grid{ grid-template-columns:1fr; gap:32px; }
  .pillars{ grid-template-columns:1fr; }
  .conf-questions{ grid-template-columns:1fr; }
  .timeline-panel{ grid-template-columns:1fr; padding:28px; gap:24px; }
  .board-grid{ grid-template-columns:repeat(2,1fr); }
  .contact-grid{ grid-template-columns:1fr; }
  .form-row{ grid-template-columns:1fr; }
  .footer-top{ grid-template-columns:1fr 1fr; }
  .main-nav{ display:none; }
  .nav-toggle{ display:block; }
}
@media (max-width:600px){
  .section{ padding:64px 0; }
  .conf-band, .cta-band{ padding:32px 24px; }
  .board-grid{ grid-template-columns:1fr 1fr; }
  .footer-top{ grid-template-columns:1fr; }
  .timeline-tabs{ flex-direction:column; }
  .timeline-tab{ border-right:none; border-bottom:1px solid var(--line-soft); }
}