@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root{
    --bg:#07111f;
    --bg2:#0b1730;
    --surface:rgba(255,255,255,.92);
    --text:#0b1426;
    --muted:#65728a;
    --line:#dfe6f0;
    --blue:#2f7cff;
    --blue2:#6a5cff;
    --cyan:#5ee6ff;
    --green:#24c883;
    --danger:#d9485f;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    min-height:100vh;
    font-family:'Inter',system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    color:#fff;
    background:
        radial-gradient(circle at 15% 15%,rgba(47,124,255,.18),transparent 32%),
        radial-gradient(circle at 85% 20%,rgba(106,92,255,.16),transparent 30%),
        linear-gradient(145deg,var(--bg),var(--bg2));
    overflow-x:hidden;
}

.background{position:fixed;inset:0;pointer-events:none;overflow:hidden;z-index:0}
.grid{
    position:absolute;inset:0;
    background-image:
        linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
    background-size:42px 42px;
    mask-image:linear-gradient(to bottom,rgba(0,0,0,.8),transparent 86%);
}
.orb{
    position:absolute;border-radius:50%;filter:blur(20px);opacity:.55;
    animation:float 12s ease-in-out infinite alternate;
}
.orb-a{width:320px;height:320px;background:#215dff;left:-80px;top:80px}
.orb-b{width:280px;height:280px;background:#7555ff;right:-50px;top:180px;animation-delay:-4s}
.orb-c{width:220px;height:220px;background:#29c7d7;left:45%;bottom:-80px;animation-delay:-7s}
@keyframes float{
    from{transform:translate3d(0,0,0) scale(1)}
    to{transform:translate3d(30px,-28px,0) scale(1.08)}
}

.shell{
    position:relative;z-index:1;
    width:min(980px,calc(100% - 32px));
    margin:0 auto;
    padding:72px 0 90px;
}

.hero{text-align:center;max-width:860px;margin:0 auto 42px}
.date-pill{
    display:inline-flex;align-items:center;gap:10px;
    padding:9px 14px;border:1px solid rgba(255,255,255,.12);
    background:rgba(255,255,255,.07);
    border-radius:999px;font-size:14px;font-weight:700;
    backdrop-filter:blur(12px);
}
.pulse-dot{
    width:9px;height:9px;border-radius:50%;
    background:#47efaa;
    box-shadow:0 0 0 0 rgba(71,239,170,.55);
    animation:pulse 1.8s infinite;
}
@keyframes pulse{
    0%{box-shadow:0 0 0 0 rgba(71,239,170,.5)}
    70%{box-shadow:0 0 0 10px rgba(71,239,170,0)}
    100%{box-shadow:0 0 0 0 rgba(71,239,170,0)}
}

h1{
    margin:22px auto 12px;
    max-width:820px;
    font-size:clamp(42px,7vw,72px);
    line-height:1.02;
    letter-spacing:-.055em;
}
h1 span{
    background:linear-gradient(90deg,#79b5ff,#8d7cff,#55e1ff);
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
}
.venue{font-size:22px;font-weight:700;margin:0 0 16px}
.lead{
    max-width:680px;margin:0 auto;
    color:#b7c4d9;line-height:1.7;font-size:17px;
}
.meta-row{
    display:grid;grid-template-columns:repeat(3,1fr);gap:12px;
    margin-top:30px;
}
.meta-box{
    padding:16px 18px;border-radius:16px;
    background:rgba(255,255,255,.055);
    border:1px solid rgba(255,255,255,.09);
    backdrop-filter:blur(12px);
}
.meta-box span{display:block;color:#91a0b8;font-size:12px;margin-bottom:4px}
.meta-box strong{font-size:14px}

.registration{max-width:760px;margin:0 auto}
.flip-scene{perspective:1600px}
.flip-card{
    position:relative;
    min-height:560px;
    transform-style:preserve-3d;
    transition:transform .9s cubic-bezier(.2,.75,.2,1);
}
.flip-card.is-flipped{transform:rotateY(180deg)}
.card-face{
    position:absolute;inset:0;
    backface-visibility:hidden;
    border-radius:26px;
}
.card-front{
    background:rgba(255,255,255,.96);
    color:var(--text);
    padding:32px;
    box-shadow:0 34px 100px rgba(0,0,0,.28);
    border:1px solid rgba(255,255,255,.55);
}
.card-back{
    transform:rotateY(180deg);
    background:
        radial-gradient(circle at 50% 20%,rgba(94,230,255,.15),transparent 34%),
        linear-gradient(145deg,#0b1d36,#102e58);
    color:#fff;
    display:grid;
    place-items:center;
    padding:34px;
    border:1px solid rgba(255,255,255,.12);
    box-shadow:0 34px 100px rgba(0,0,0,.28);
}

.card-head{
    display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
    margin-bottom:26px;
}
.kicker,.success-kicker{
    font-size:11px;font-weight:800;letter-spacing:.14em;color:var(--blue)
}
.card-head h2{font-size:28px;letter-spacing:-.03em;margin:8px 0 0}
.step{
    width:42px;height:42px;border-radius:14px;
    display:grid;place-items:center;
    background:#eef4ff;color:var(--blue);font-weight:800;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:grid;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;font-weight:700;color:#34415a}
.input-wrap{position:relative}
.input-wrap input{
    width:100%;height:52px;
    border:1px solid var(--line);
    border-radius:12px;
    padding:0 14px;
    font:inherit;color:var(--text);
    background:#fff;
    outline:none;
    transition:.2s ease;
}
.input-wrap input:focus{
    border-color:var(--blue);
    box-shadow:0 0 0 4px rgba(47,124,255,.08);
    transform:translateY(-1px);
}
.input-wrap input::placeholder{color:#a6b0bf}

.submit-btn,.secondary-btn{
    position:relative;overflow:hidden;
    width:100%;height:56px;margin-top:22px;
    border:0;border-radius:14px;
    background:linear-gradient(135deg,var(--blue),var(--blue2));
    color:#fff;font:inherit;font-weight:800;
    cursor:pointer;
    display:flex;align-items:center;justify-content:center;gap:10px;
    transition:.2s ease;
    box-shadow:0 16px 35px rgba(47,124,255,.26);
}
.submit-btn:hover{transform:translateY(-2px);box-shadow:0 20px 42px rgba(47,124,255,.32)}
.submit-btn:disabled{opacity:.65;cursor:wait;transform:none}
.btn-arrow{font-size:20px}
.shine{
    position:absolute;top:-120%;left:-25%;
    width:35%;height:340%;
    background:linear-gradient(90deg,transparent,rgba(255,255,255,.24),transparent);
    transform:rotate(22deg);
    animation:shine 3.2s infinite;
}
@keyframes shine{
    0%,35%{left:-35%}
    60%,100%{left:120%}
}
.form-note{text-align:center;color:#8b96a8;font-size:12px;margin:12px 0 0}
.hp-field{position:absolute!important;left:-99999px!important;opacity:0!important}

.inline-message{
    margin-bottom:20px;padding:13px 15px;border-radius:12px;
    font-size:14px;line-height:1.5;
}
.inline-message.error{background:#fff0f2;color:#9e2439;border:1px solid #ffd3db}

.success-wrap{text-align:center;max-width:560px}
.success-ring{
    position:relative;width:112px;height:112px;margin:0 auto 30px;
    display:grid;place-items:center;
}
.success-check{
    width:74px;height:74px;border-radius:50%;
    display:grid;place-items:center;
    background:linear-gradient(145deg,#36e29b,#19b877);
    color:white;font-size:34px;font-weight:900;
    box-shadow:0 16px 38px rgba(25,184,119,.28);
    animation:pop .7s cubic-bezier(.2,1.4,.3,1) both;
}
.ring{
    position:absolute;inset:0;border-radius:50%;border:1px solid rgba(94,230,255,.35);
    animation:ring 2.5s infinite;
}
.ring-2{animation-delay:1.2s}
@keyframes ring{
    0%{transform:scale(.6);opacity:.8}
    100%{transform:scale(1.5);opacity:0}
}
@keyframes pop{
    from{transform:scale(.4) rotate(-20deg);opacity:0}
    to{transform:scale(1) rotate(0);opacity:1}
}
.success-kicker{color:#6de1ff}
.success-wrap h2{
    font-size:34px;line-height:1.12;letter-spacing:-.035em;
    margin:12px 0 14px;
}
.success-wrap p{color:#bfd0e8;line-height:1.7;margin:0 auto;max-width:500px}
.success-info{
    display:flex;align-items:center;justify-content:center;gap:12px;
    margin:24px 0 28px;color:#dce8f8;font-size:14px;font-weight:700;
}
.divider{width:4px;height:4px;border-radius:50%;background:#6de1ff}
.secondary-btn{
    width:auto;min-width:180px;margin:0 auto;
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.14);
    box-shadow:none;
}
.secondary-btn:hover{background:rgba(255,255,255,.13)}

.reveal{animation:reveal .8s ease both}
.delay{animation-delay:.12s}
@keyframes reveal{
    from{opacity:0;transform:translateY(22px)}
    to{opacity:1;transform:translateY(0)}
}

@media(max-width:700px){
    .shell{padding:48px 0 70px}
    h1{font-size:44px}
    .meta-row{grid-template-columns:1fr}
    .flip-card{min-height:720px}
    .form-grid{grid-template-columns:1fr}
    .field.full{grid-column:auto}
    .card-front{padding:22px}
    .card-head h2{font-size:24px}
    .card-back{padding:24px}
    .success-wrap h2{font-size:30px}
}
@media(prefers-reduced-motion:reduce){
    *,*::before,*::after{animation:none!important;transition:none!important}
}