@import url('https://fonts.googleapis.com/css2?family=Roboto+Serif:ital,opsz,wght@0,8..144,100..900;1,8..144,100..900&family=Roboto:ital,wght@0,100..900;1,100..900&display=swap');

/* ═══════════════════════════════════════════════════════════════════
     REV.IO SUMMIT 2026 — Full Page
     ───────────────────────────────────────────────────────────────────
     Sections:
       1. Summit nav (sticky)
       2. Hero (aurora mountains + animated starfield)
       3. About (01 / About)
       4. Agenda (02 / Agenda) — skeleton, content pending
       5. Speakers (03 / Speakers) — placeholder grid, content pending
       6. Sponsors (04 / Sponsors) — placeholder grid, content pending
       7. Venue (05 / Venue)
       8. Register (06 / Register) — CTA → reviosummit.com/en/registration-form
       9. FAQ (07 / FAQ)
      10. Summit footer
     ───────────────────────────────────────────────────────────────────
     External assets (for agency handoff — replace src paths with your CDN):
       • assets/summit-cover-soft.png    (hero background)
       • assets/logo-full.svg            (nav logo)
     ═══════════════════════════════════════════════════════════════════ */

  :root{
    --ink-900: #0a141f;
    --ink-850: #0c1925;
    --ink-800: #0f1b2a;
    --ink-700: #15283f;
    --ink-600: #1d3756;
    --ink-500: #294b72;
    --cyan-500: #34bde5;
    --cyan-400: #5cc9ea;
    --cyan-300: #7fd9ef;
    --cyan-100: #c7eef8;
    --aurora-teal: #4fd1c5;
    --aurora-lime: #c6f178;
    --text-hi: #f5f9ff;
    --text-mid: #b9c7d6;
    --text-dim: #8ea3b9;
    --line: rgba(255,255,255,0.10);
    --line-strong: rgba(255,255,255,0.18);
    --pill-bg: rgba(10,20,31,0.45);
  }

  *{ box-sizing:border-box; }
  html{ scroll-behavior:smooth; }
  html,body{
    margin:0; padding:0;
    background:var(--ink-900); color:var(--text-hi);
    font-family:'Roboto', system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
  }
  a{ color:inherit; }
  img{ max-width:100%; display:block; }

  .clearfix:before, .clearfix:after, .dl-horizontal dd:before, .dl-horizontal dd:after, .container:before, .container:after, .container-fluid:before, .container-fluid:after, .row:before, .row:after, .form-horizontal .form-group:before, .form-horizontal .form-group:after, .btn-toolbar:before, .btn-toolbar:after, .btn-group-vertical>.btn-group:before, .btn-group-vertical>.btn-group:after, .nav:before, .nav:after, .navbar:before, .navbar:after, .navbar-header:before, .navbar-header:after, .navbar-collapse:before, .navbar-collapse:after, .pager:before, .pager:after, .panel-body:before, .panel-body:after, .modal-footer:before, .modal-footer:after {
    content:unset;
  }

  .container{ max-width:1320px; margin:0 auto; padding:0 72px; }
  @media (min-width: 1440px) { .container { max-width:1320px !important; margin:0 auto !important; padding:0 72px !important; width: 100% !important; } }
  @media (max-width:900px){ .container{ padding:0 24px; } }

  .header-content > .container { width: 100% !important; max-width: 100% !important; padding: 0 !important; }

  /* Shared section chrome ─────────────────────────────────────────── */
  section[id]{ scroll-margin-top: 80px; }
  .section{ padding: 120px 0; position:relative; }
  .section--dark{ background: var(--ink-900); }
  .section--darker{ background: var(--ink-850); }
  .section--deepest{ background: #060e18; }

  .section.registration-form { padding: 0; }
  .page-heading { display: none; }

  .sec__eyebrow{
    font-size:11px; letter-spacing:0.22em; text-transform:uppercase;
    color: var(--text-dim); font-weight:500;
    display:flex; align-items:center; gap:14px;
    margin-bottom: 32px;
  }
  .sec__eyebrow .num{
    color: var(--cyan-500); font-weight:700;
    font-variant-numeric: tabular-nums;
  }
  .sec__eyebrow::after{
    content:""; flex:1; max-width:120px; height:1px;
    background: var(--line);
  }
  .sec__title{
    font-weight:300;
    font-size: clamp(44px, 5.5vw, 80px);
    line-height: 1.02;
    letter-spacing: -0.02em;
    margin: 0 0 24px;
    text-wrap: balance;
  }
  .sec__title em{
    font-family:'Roboto Serif', 'Roboto', serif;
    font-style: italic; font-weight:500;
    color: var(--cyan-300);
  }
  .sec__lede{
    font-size:18px; line-height:1.6;
    color: #ffffff;
    max-width: 680px;
    text-wrap: pretty;
  }

  /* ═══════════════════════════════════════════════════════════════════
     1. NAV
     ═══════════════════════════════════════════════════════════════════ */
  .nav,.header-content{
    position:sticky; top:0; z-index:50;
    height:72px; padding:0 48px;
    display:flex; align-items:center; justify-content:space-between;
    /* background: rgba(10,20,31,0.88); */
    /* backdrop-filter: blur(14px); */
    /* border-bottom:1px solid var(--line); */
  }
  .header-content .nav{ padding:0 48px !important; }
    .header-content{ padding: 0px !important; background: rgba(10,20,31,1); backdrop-filter: blur(14px);border-bottom:1px solid var(--line);}
    .homepage-body .header-content{background: rgba(10,20,31,0.88);}
  .nav__brand{ display:flex; align-items:center; gap:20px; }
  .nav__logo{ height:26px; display:block; }
  .nav__tag{
    font-size:11px; letter-spacing:0.22em; text-transform:uppercase;
    color:var(--text-mid); padding-left:20px; border-left:1px solid var(--line-strong);
    font-weight:500;
    font-family: 'Roboto', system-ui, sans-serif;
  }
  .nav__links{ display:flex; gap:40px; }
  .nav__links a{
    color:var(--text-hi); text-decoration:none; font-size:14px; font-weight:400;
    opacity:0.85; transition: opacity 160ms, color 160ms;
    font-family: 'Roboto', system-ui, sans-serif;
  }
  .nav__links a:hover{ opacity:1; color:var(--cyan-300); }
  .btn{
    display:inline-flex; align-items:center; gap:8px;
    background:var(--cyan-500); color:#062030;
    border:none; border-radius:999px;
    padding:12px 26px; font-weight:700; font-size:14px; cursor:pointer;
    font-family:inherit; text-decoration:none;
    transition: background 160ms ease, transform 160ms ease;
  }
  .btn:hover{ background:var(--cyan-300); transform: translateY(-1px); }
  .btn--lg{ padding:16px 34px; font-size:15px; }
  .btn--ghost{
    background: transparent; color: var(--text-hi);
    border:1px solid var(--line-strong);
  }
  .btn--ghost:hover{ background: rgba(255,255,255,0.05); transform: translateY(-1px); }

  .header-content .btn {
    padding: 12px 26px !important;
    background: var(--cyan-500) !important;
    font-size: 14px;
    cursor: pointer;
    border-radius: 999px;
    font-weight: 700;
    font-family: 'Roboto', system-ui, sans-serif;
}
  @media (max-width:900px){
    .header-content .nav{ padding: 0 20px !important; height:64px; }
    .nav__links{ display:none; }
    .nav__tag{ display:none; }
  }

  /* ═══════════════════════════════════════════════════════════════════
     COUNTDOWN BAR
     ═══════════════════════════════════════════════════════════════════ */
  .countdown{
    position: relative; z-index: 1;
    background: #060e18;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    padding: 28px 48px;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 32px;
    color: var(--text-hi);
  }
  .countdown__label{
    font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--text-dim); font-weight: 500; line-height: 1.5;
  }
  .countdown__clock{
    display: flex; gap: 40px; align-items: flex-end; justify-content: center;
  }
  .countdown__unit{
    text-align: center;
  }
  .countdown__num{
    font-weight: 300;
    font-size: 44px; line-height: 1;
    letter-spacing: 0.02em;
    color: var(--text-hi);
    font-variant-numeric: tabular-nums;
  }
  .countdown__unit-label{
    margin-top: 8px;
    font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--text-dim); font-weight: 500;
  }
  .countdown__venue{
    text-align: right;
    font-size: 13px; line-height: 1.5;
    color: var(--text-mid);
  }
  @media (max-width: 900px){
    .countdown{
      grid-template-columns: 1fr;
      gap: 16px; padding: 20px;
    }
    .countdown__label, .countdown__venue{ text-align: center; }
    .countdown__clock{ gap: 24px; }
    .countdown__num{ font-size: 32px; }
  }

  /* ═══════════════════════════════════════════════════════════════════
     2. HERO
     ═══════════════════════════════════════════════════════════════════ */
  .hero{
    position:relative;
    min-height: 720px; height: calc(100vh - 72px);
    overflow:hidden; isolation:isolate;
    background:#0a141f;
  }
  .hero__bg{
    position:absolute; inset:0; z-index:1;
    background-image: url('https://vepimg.b8cdn.com/uploads/vjfnew//content/files/1777018219summit-cover-soft-png1777018219.png');
    background-size: cover; background-position: center bottom;
  }
  .hero__stars{
    position:absolute; inset:0; z-index:2;
    pointer-events:none; mix-blend-mode: screen; opacity: 0.95;
    -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 50%, transparent 62%);
            mask-image: linear-gradient(180deg, #000 0%, #000 50%, transparent 62%);
  }
  .hero__aurora{
    position:absolute; inset:-10% -10% 35% -10%; z-index:3;
    pointer-events:none; mix-blend-mode: screen; opacity: 0.8;
    filter: blur(60px);
  }
  .hero__aurora::before,
  .hero__aurora::after{ content:""; position:absolute; inset:0; }
  .hero__aurora::before{
    background:
      radial-gradient(60% 40% at 20% 30%, rgba(79,209,197,0.55), transparent 60%),
      radial-gradient(50% 35% at 75% 20%, rgba(52,189,229,0.45), transparent 60%);
    animation: auroraDrift 22s ease-in-out infinite alternate;
  }
  .hero__aurora::after{
    background:
      radial-gradient(45% 30% at 55% 10%, rgba(198,241,120,0.30), transparent 60%),
      radial-gradient(50% 30% at 90% 35%, rgba(127,217,239,0.35), transparent 60%);
    animation: auroraDrift2 28s ease-in-out infinite alternate;
  }
  @keyframes auroraDrift  { 0%{ transform: translate3d(-3%,-1%,0) scale(1.00);} 100%{ transform: translate3d(4%,2%,0) scale(1.08);} }
  @keyframes auroraDrift2 { 0%{ transform: translate3d(2%,1%,0) scale(1.05);} 100%{ transform: translate3d(-4%,-2%,0) scale(1.00);} }

  .hero__vignette{
    position:absolute; inset:0; z-index:6; pointer-events:none;
    background:
      linear-gradient(180deg, rgba(10,20,31,0) 0%, rgba(10,20,31,0) 55%, rgba(10,20,31,0.35) 85%, rgba(10,20,31,0.7) 100%),
      linear-gradient(90deg, rgba(10,20,31,0.55) 0%, rgba(10,20,31,0) 45%);
  }
  .hero__content{
    position:relative; z-index:7;
    max-width: 1320px; margin: 0 auto;
    padding: 88px 72px 64px;
    height:100%;
    display:flex; flex-direction:column; justify-content:space-between;
    min-height: 720px;
  }
  .datepill{
    display:inline-flex; align-items:center; gap:10px;
    padding:8px 18px 8px 14px;
    border:1px solid rgba(127,217,239,0.5);
    border-radius:999px;
    background: var(--pill-bg); backdrop-filter: blur(6px);
    font-size:11px; letter-spacing:0.18em; text-transform:uppercase;
    color:var(--cyan-100); font-weight:500; width:fit-content;
  }
  .datepill__dot{
    width:10px; height:10px; border-radius:50%;
    background: var(--cyan-500);
    box-shadow: 0 0 0 3px rgba(52,189,229,0.25), 0 0 12px rgba(52,189,229,0.8);
    animation: pulse 2.4s ease-in-out infinite;
  }
  @keyframes pulse{
    0%,100%{ box-shadow:0 0 0 3px rgba(52,189,229,0.25), 0 0 10px rgba(52,189,229,0.6);}
    50%    { box-shadow:0 0 0 5px rgba(52,189,229,0.10), 0 0 18px rgba(52,189,229,0.95);}
  }
  .hero__headline{
    margin: 28px 0 0;
    font-weight:300;
    font-size: clamp(64px, 8vw, 128px);
    line-height: 0.96; letter-spacing: -0.02em;
    color: var(--text-hi);
    text-shadow: 0 2px 24px rgba(6,20,36,0.5);
    font-family: 'Roboto';
  }
  .hero__headline { text-align: left; }
  .hero__headline em{
    display:block;
    font-family:'Roboto Serif', 'Roboto', serif;
    font-style: italic; font-weight: 500;
    color: var(--cyan-300); letter-spacing: -0.01em;
  }
  .hero__lede{
    margin-top: 36px; max-width: 560px;
    font-size: 17px; line-height: 1.6;
    color: #ffffff; text-wrap: pretty;
  }
  .hero__meta{ display:flex; gap: 72px; margin-top: 56px; padding-top: 24px; }
  .meta__label{
    font-size:11px; letter-spacing:0.18em; text-transform:uppercase;
    color: var(--text-dim); font-weight:500; margin-bottom:8px;
  }
  .meta__value{ font-size:18px; font-weight:400; color:var(--text-hi); }
  @media (max-width:900px){
    .hero__content{ padding: 56px 24px 40px; }
    .hero__meta{ flex-direction:column; gap:20px; }
  }

  /* ═══════════════════════════════════════════════════════════════════
     3. ABOUT
     ═══════════════════════════════════════════════════════════════════ */
  .about__grid{
    display:grid; grid-template-columns: 1.1fr 1fr; gap: 80px; align-items:start;
  }
  .about__stats{
    display:grid; grid-template-columns: 1fr 1fr; gap: 24px;
    margin-top: 48px;
  }
  .stat{
    border:1px solid var(--line);
    border-radius: 14px;
    padding: 28px 28px 26px;
    background: rgba(255,255,255,0.02);
  }
  .stat__num{
    font-weight:300;
    font-size: 54px; line-height:1;
    color: var(--cyan-300);
    font-family: 'Roboto Serif', 'Roboto', serif;
    font-style: italic;
  }
  .stat__label{
    margin-top: 14px;
    font-size: 12px; letter-spacing:0.16em; text-transform:uppercase;
    color: var(--text-mid); font-weight:500;
  }
  @media (max-width: 900px){
    .about__grid{ grid-template-columns: 1fr; gap:40px;  grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr)); }
    .about__stats{ grid-template-columns: 1fr 1fr;         grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr)); }
  }

  /* ═══════════════════════════════════════════════════════════════════
     4. AGENDA
     ═══════════════════════════════════════════════════════════════════ */
  .agenda__tabs{
    display:flex; gap: 8px;
    margin-top: 48px; margin-bottom: 32px;
    border-bottom: 1px solid var(--line);
  }
  .agenda__tab{
    padding: 16px 24px; border:none; background:transparent;
    color: var(--text-mid); font-family:inherit;
    font-size: 14px; letter-spacing: 0.08em; text-transform: uppercase;
    cursor: pointer; font-weight: 500;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: color 160ms, border-color 160ms;
  }
  .agenda__tab .num{ color: var(--cyan-500); font-weight:700; margin-right:8px; }
  .agenda__tab.is-active{ color: var(--text-hi); border-bottom-color: var(--cyan-500); }
  .agenda__tab:hover{ color: var(--text-hi); }

  .agenda__filters{
    display:flex; flex-wrap: wrap; gap: 10px;
    align-items: center;
    margin-bottom: 40px;
  }
  .agenda__filters-label{
    font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--text-dim); font-weight: 500;
    margin-right: 8px;
  }
  .chip{
    border: 1px solid var(--line);
    color: var(--text-mid); background: transparent;
    border-radius: 999px;
    padding: 8px 16px; font-size: 12px; font-family: inherit;
    cursor: pointer; transition: all 160ms;
  }
  .chip.is-active, .chip:hover{
    background: var(--cyan-500); color:#062030; border-color: var(--cyan-500);
  }

  .agenda__placeholder{
    border:1px dashed var(--line);
    border-radius: 14px;
    padding: 72px 48px;
    text-align:center;
    background: rgba(255,255,255,0.02);
  }
  .agenda__placeholder h3{
    font-weight: 400; font-size: 22px; margin: 0 0 10px;
    color: var(--text-hi);
  }
  .agenda__placeholder p{
    color: var(--text-mid); margin: 0;
    font-size: 15px;
  }

  /* ═══════════════════════════════════════════════════════════════════
     5. SPEAKERS
     ═══════════════════════════════════════════════════════════════════ */
  .speakers__grid{
    margin-top: 48px;
    display:grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  }
  .speaker{
    border: 1px solid var(--line);
    border-radius: 14px;
    overflow: hidden;
    background: rgba(255,255,255,0.02);
  }
  .speaker__photo{
    aspect-ratio: 1 / 1;
    background:
      linear-gradient(135deg, rgba(52,189,229,0.18), rgba(79,209,197,0.18)),
      #11253a;
    position:relative;
  }
  .speaker__photo::after{
    content:""; position:absolute; inset:0;
    background-image:
      radial-gradient(circle at 30% 30%, rgba(255,255,255,0.06) 0 2px, transparent 3px),
      radial-gradient(circle at 70% 60%, rgba(255,255,255,0.04) 0 2px, transparent 3px);
    background-size: 60px 60px, 80px 80px;
  }
  .speaker__meta{ padding: 20px 22px 24px; }
  .speaker__name{
    font-size: 16px; font-weight: 500; color: var(--text-hi);
    margin: 0 0 4px;
  }
  .speaker__title{
    font-size: 13px; color: var(--text-dim);
    letter-spacing: 0.04em;
  }
  .speakers__note{
    margin-top: 40px; text-align:center;
    color: var(--text-dim); font-size: 14px;
  }
  @media (max-width: 1100px){ .speakers__grid{ grid-template-columns: repeat(3, 1fr);} }
  @media (max-width: 800px){ .speakers__grid{ grid-template-columns: repeat(2, 1fr);} }

  /* ═══════════════════════════════════════════════════════════════════
     6. SPONSORS
     ═══════════════════════════════════════════════════════════════════ */
  .sponsors__tier{
    margin-top: 48px;
  }
  .sponsors__tier + .sponsors__tier{ margin-top: 56px; }
  .sponsors__tier-label{
    font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--text-dim); font-weight: 500;
    margin-bottom: 20px;
  }
  .sponsors__grid{
    display:grid; gap: 16px;
  }
  .sponsors__grid--3{ grid-template-columns: repeat(3, 1fr); }
  .sponsors__grid--4{ grid-template-columns: repeat(4, 1fr); }
  .sponsors__grid--5{ grid-template-columns: repeat(5, 1fr); }
  .sponsor-slot{
    aspect-ratio: 16 / 9;
    border: 1px dashed var(--line);
    border-radius: 10px;
    display:flex; align-items:center; justify-content:center;
    color: var(--text-dim); font-size: 12px;
    background: rgba(255,255,255,0.02);
    letter-spacing: 0.04em;
  }
  @media (max-width: 800px){
    .sponsors__grid--3, .sponsors__grid--4, .sponsors__grid--5{ grid-template-columns: repeat(2, 1fr); }
  }

  /* ═══════════════════════════════════════════════════════════════════
     7. VENUE
     ═══════════════════════════════════════════════════════════════════ */
  .venue__grid{
    margin-top: 48px;
    display:grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: center;
  }
  .venue__img{
    aspect-ratio: 4 / 3;
    border-radius: 16px;
    border: 1px solid var(--line);
    position: relative; overflow: hidden;
    background:
      radial-gradient(120% 80% at 50% 50%, #0b1a2a 0%, #060e18 85%);
  }
  /* Stylized street-map grid */
  .venue__map{
    position:absolute; inset:0;
    background-image:
      /* horizontal streets */
      linear-gradient(180deg, transparent 0, transparent calc(32% - 1px), rgba(255,255,255,0.10) 32%, rgba(255,255,255,0.10) calc(32% + 1px), transparent calc(32% + 1px)),
      linear-gradient(180deg, transparent 0, transparent calc(68% - 1px), rgba(255,255,255,0.07) 68%, rgba(255,255,255,0.07) calc(68% + 1px), transparent calc(68% + 1px)),
      /* vertical streets */
      linear-gradient(90deg, transparent 0, transparent calc(28% - 1px), rgba(255,255,255,0.10) 28%, rgba(255,255,255,0.10) calc(28% + 1px), transparent calc(28% + 1px)),
      linear-gradient(90deg, transparent 0, transparent calc(52% - 1px), rgba(255,255,255,0.14) 52%, rgba(255,255,255,0.14) calc(52% + 1px), transparent calc(52% + 1px)),
      linear-gradient(90deg, transparent 0, transparent calc(78% - 1px), rgba(255,255,255,0.08) 78%, rgba(255,255,255,0.08) calc(78% + 1px), transparent calc(78% + 1px));
  }
  /* Building blocks scattered across grid */
  .venue__block{
    position:absolute;
    background: rgba(255,255,255,0.025);
    border: 1px solid rgba(255,255,255,0.04);
    border-radius: 3px;
  }
  .venue__frame{
    position:absolute; inset: 14px;
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 10px;
    pointer-events:none;
  }
  /* Pin marker */
  .venue__pin{
    position:absolute;
    left: 50%; top: 48%;
    transform: translate(-50%, -50%);
    display:flex; align-items:center; gap: 12px;
    z-index: 3;
  }
  .venue__pin-box{
    width: 44px; height: 44px;
    border: 2px solid var(--cyan-500);
    border-radius: 4px;
    display:flex; align-items:center; justify-content:center;
    background: rgba(10,20,31,0.55);
    box-shadow: 0 0 24px rgba(52,189,229,0.35);
    flex-shrink: 0;
  }
  .venue__pin-box::after{
    content:""; width: 10px; height: 10px; border-radius: 50%;
    background: var(--cyan-500);
    box-shadow: 0 0 0 3px rgba(52,189,229,0.25), 0 0 12px rgba(52,189,229,0.9);
    animation: pulse 2.4s ease-in-out infinite;
  }
  .venue__pin-label{
    font-family: 'Roboto Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 11px; letter-spacing: 0.14em;
  }
  .venue__pin-label .name{
    color: var(--cyan-300); text-transform: uppercase; font-weight: 500;
    display:block; margin-bottom: 3px;
  }
  .venue__pin-label .coord{
    color: var(--text-dim); font-size: 10px;
  }
  .venue__info h3{
    font-weight: 400; font-size: 24px; margin: 0 0 6px; color: var(--text-hi);
  }
  .venue__info .addr{
    color: var(--text-mid); font-size: 15px; line-height: 1.6;
    margin-bottom: 32px;
  }
  .venue__list{
    list-style:none; padding:0; margin: 0;
    display:grid; grid-template-columns: 1fr 1fr; gap: 14px 24px;
  }
  .venue__list li{
    color: var(--text-mid); font-size: 14px;
    padding-left: 22px; position:relative;
  }
  .venue__list li::before{
    content: ""; position: absolute; left: 0; top: 7px;
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--cyan-500);
    box-shadow: 0 0 10px rgba(52,189,229,0.8);
  }
  @media (max-width: 900px){
    .venue__grid{ grid-template-columns: 1fr; gap:32px; }
    .venue__list{ grid-template-columns: 1fr; }
  }

  /* ═══════════════════════════════════════════════════════════════════
     8. REGISTER
     ═══════════════════════════════════════════════════════════════════ */
  .register{
    position: relative; overflow:hidden;
    padding: 160px 0;
    background: var(--ink-900);
    isolation: isolate;
  }
  .register::before{
    content: ""; position: absolute; inset: 0;
    z-index: 0;
    background:
      radial-gradient(50% 60% at 50% 40%, rgba(79,209,197,0.22), transparent 65%),
      radial-gradient(50% 60% at 70% 60%, rgba(52,189,229,0.18), transparent 65%),
      radial-gradient(40% 50% at 30% 70%, rgba(198,241,120,0.10), transparent 65%);
    filter: blur(40px);
  }
  .register__inner{
    position: relative; z-index: 1;
    text-align: center;
    max-width: 840px; margin: 0 auto;
  }
  .register__title{
    font-weight: 300; font-size: clamp(48px, 6vw, 92px); line-height: 1.02;
    letter-spacing: -0.02em; margin: 0 0 24px;
  }
  .register__title em{
    font-family: 'Roboto Serif', 'Roboto', serif;
    font-style: italic; font-weight: 500; color: var(--cyan-300);
  }
  .register__lede{
    font-size: 19px; line-height: 1.6; color: var(--text-mid);
    max-width: 620px; margin: 0 auto 48px;
    text-wrap: pretty;
  }
  .register__meta{
    display: flex; gap: 32px; justify-content: center; align-items: center;
    margin-top: 40px;
    color: var(--text-dim); font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase;
  }
  .register__meta span{ display:inline-flex; align-items:center; }
  .register__meta span::before{
    content: ""; display:inline-block;
    width: 4px; height: 4px; border-radius: 50%;
    background: var(--cyan-500); margin-right: 10px; vertical-align: middle;
  }
  @media (max-width:700px){
    .register{ padding: 100px 0; }
    .register__meta{ flex-direction:column; gap: 10px; }
  }

  /* ═══════════════════════════════════════════════════════════════════
     9. FAQ
     ═══════════════════════════════════════════════════════════════════ */
  .faq__list{
    margin-top: 48px;
    max-width: 880px;
  }
  .faq__item{
    border-bottom: 1px solid var(--line);
  }
  .faq__item summary{
    list-style: none; cursor: pointer;
    padding: 28px 0; display: flex; justify-content: space-between; align-items: center;
    gap: 24px;
    font-size: 19px; font-weight: 400; color: var(--text-hi);
    transition: color 160ms;
  }
  .faq__item summary::-webkit-details-marker{ display:none; }
  .faq__item summary:hover{ color: var(--cyan-300); }
  .faq__item summary .icon{
    width: 32px; height: 32px; border-radius: 50%;
    border: 1px solid var(--line-strong);
    display: flex; align-items:center; justify-content:center;
    flex-shrink: 0;
    transition: transform 240ms, border-color 160ms, background 160ms;
  }
  .faq__item[open] summary .icon{
    transform: rotate(45deg);
    background: var(--cyan-500); border-color: var(--cyan-500); color: #062030;
  }
  .faq__item .answer{
    padding: 0 0 28px; max-width: 720px;
    color: var(--text-mid); font-size: 15px; line-height: 1.7;
  }

  /* ═══════════════════════════════════════════════════════════════════
     10. FOOTER (Summit-specific)
     ═══════════════════════════════════════════════════════════════════ */
  .sfoot{
    background: #050b12;
    border-top: 1px solid var(--line);
    padding: 64px 0 40px;
  }
  .sfoot__top{
    display:grid; grid-template-columns: 1.2fr 1fr 1fr 1fr; gap: 48px;
    margin-bottom: 56px;
  }
  .sfoot__brand .nav__logo{ height: 28px; margin-bottom: 20px; }
  .sfoot__tagline{ color: var(--text-mid); font-size: 14px; max-width: 280px; line-height: 1.6; }
  .sfoot__col h4{
    font-size: 11px; letter-spacing: 0.22em; text-transform:uppercase;
    color: var(--text-dim); font-weight: 500; margin: 0 0 16px;
  }
  .sfoot__col ul{ list-style:none; padding:0; margin:0; }
  .sfoot__col li{ margin-bottom: 10px; }
  .sfoot__col a{
    color: var(--text-mid); text-decoration:none; font-size: 14px;
    transition: color 160ms;
  }
  .sfoot__col a:hover{ color: var(--cyan-300); }
  .sfoot__bottom{
    padding-top: 32px; border-top: 1px solid var(--line);
    display:flex; justify-content: space-between; align-items: center;
    color: var(--text-dim); font-size: 12px;
  }
  @media (max-width: 900px){
    .sfoot__top{ grid-template-columns: 1fr 1fr; }
    .sfoot__bottom{ flex-direction:column; gap:12px; text-align:center; }
  }