:root {
	--bg: #0b0f1a;
	--bg-alt: #0f1524;
	--text: #e6e9f2;
	--muted: #a9b0c3;
	--primary: #6ee7ff;
	--primary-strong: #22d3ee;
	--accent: #a78bfa;
	--card: rgba(255,255,255,0.06);
	--border: rgba(255,255,255,0.12);
	--success: #22c55e;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { height: 100%; }
body {
	margin: 0;
	font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
	background: radial-gradient(1200px 800px at 80% -10%, rgba(110,231,255,0.15), transparent),
		linear-gradient(180deg, var(--bg), var(--bg-alt));
	color: var(--text);
	line-height: 1.6;
}

img { max-width: 100%; display: block; }
.container { width: min(1100px, 92%); margin: 0 auto; }
.section { padding: 72px 0; }
.section-alt { background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01)); }
.two-col { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 32px; align-items: start; }
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; } }

h1, h2, h3 { line-height: 1.2; margin: 0 0 12px; }
h1 { font-size: clamp(36px, 6vw, 56px); letter-spacing: -0.02em; }
h1 span { font-weight: 400; font-size: clamp(18px, 2.6vw, 22px); color: var(--muted); display: block; margin-top: 8px; }
h2 { font-size: clamp(26px, 3vw, 34px); }
h3 { font-size: 20px; }
.muted { color: var(--muted); font-size: 14px; }

.btn { display: inline-block; padding: 12px 18px; border-radius: 12px; border: 1px solid var(--border); color: var(--text); text-decoration: none; transition: transform .12s ease, background .2s ease, border-color .2s ease; }
.btn:hover { transform: translateY(-1px); border-color: rgba(255,255,255,0.25); }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--accent)); color: #0b0f1a; border: none; font-weight: 700; }
.btn-ghost { background: transparent; }
.btn-small { padding: 8px 12px; font-size: 14px; }

.site-header { position: sticky; top: 0; z-index: 50; backdrop-filter: saturate(140%) blur(10px); background: rgba(11,15,26,0.6); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-weight: 800; color: var(--text); text-decoration: none; letter-spacing: 0.5px; }
.nav-toggle { display: none; background: none; border: 1px solid var(--border); color: var(--text); padding: 8px 10px; border-radius: 10px; }
.nav-menu { display: flex; gap: 18px; list-style: none; margin: 0; padding: 0; align-items: center; }
.nav-menu a { color: var(--text); text-decoration: none; padding: 8px 10px; border-radius: 10px; border: 1px solid transparent; }
.nav-menu a:hover { border-color: var(--border); }
@media (max-width: 780px) {
	.nav-toggle { display: inline-block; }
	.nav-menu { position: absolute; right: 4%; top: 64px; background: rgba(15,21,36,0.95); border: 1px solid var(--border); border-radius: 12px; padding: 10px; flex-direction: column; align-items: stretch; display: none; min-width: 200px; }
	.nav-menu.open { display: flex; }
}

.hero { padding: 96px 0 72px; background: radial-gradient(800px 500px at 10% -10%, rgba(167,139,250,0.12), transparent); }
.hero-inner { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 28px; align-items: center; }
.hero-copy p { color: var(--muted); max-width: 54ch; }
.hero-cta { margin-top: 16px; display: flex; gap: 12px; flex-wrap: wrap; }
.hero-art { position: relative; height: 280px; }
.gradient-ball { position: absolute; inset: 0; background: radial-gradient(circle at 30% 30%, var(--primary) 0%, rgba(110,231,255,0.6) 22%, transparent 60%), radial-gradient(circle at 70% 70%, var(--accent) 0%, rgba(167,139,250,0.5) 22%, transparent 58%); filter: blur(6px); border-radius: 24px; opacity: 0.8; }
@media (max-width: 900px) { .hero-inner { grid-template-columns: 1fr; } .hero-art { height: 180px; } }

.card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 18px; }
.card.highlight { background: linear-gradient(180deg, rgba(110,231,255,0.08), rgba(167,139,250,0.05)); }

.checks { padding-left: 18px; }
.checks li { margin-bottom: 6px; }

.meta { list-style: none; padding: 0; margin: 0; }
.meta li { padding: 6px 0; color: var(--muted); }

.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.tag { font-size: 12px; padding: 6px 10px; border: 1px solid var(--border); border-radius: 999px; color: var(--muted); }

.speaker-card { display: grid; gap: 8px; align-content: start; text-align: center; }
.avatar { width: 100%; aspect-ratio: 1/1; border-radius: 14px; background: linear-gradient(135deg, #111827, #0b0f1a), url('https://images.unsplash.com/photo-1506794778202-cad84cf45f1d?q=80&w=800&auto=format&fit=crop') center/cover; border: 1px solid var(--border); }

.timeline { display: grid; gap: 10px; margin-top: 16px; }
.time-item { display: grid; grid-template-columns: 90px 1fr; gap: 14px; align-items: start; padding: 12px 14px; border: 1px dashed var(--border); border-radius: 12px; background: rgba(255,255,255,0.02); }
.time-item span { font-weight: 700; color: var(--primary); }

.pricing { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.price { padding: 18px; border: 1px solid var(--border); border-radius: 16px; background: rgba(255,255,255,0.03); }
.price.featured { background: linear-gradient(180deg, rgba(167,139,250,0.08), rgba(110,231,255,0.05)); border-color: rgba(255,255,255,0.24); }
.price .amount { font-size: 28px; font-weight: 800; margin: 6px 0 12px; color: var(--primary-strong); }
.price ul { padding-left: 18px; color: var(--muted); }
@media (max-width: 780px) { .pricing { grid-template-columns: 1fr; } }

.map-placeholder { height: 260px; border-radius: 16px; border: 1px dashed var(--border); background: repeating-linear-gradient(45deg, rgba(255,255,255,0.03) 0 10px, rgba(255,255,255,0.06) 10px 20px); }

.faq details { background: rgba(255,255,255,0.03); border: 1px solid var(--border); border-radius: 12px; padding: 10px 14px; margin-bottom: 10px; }
.faq summary { cursor: pointer; font-weight: 600; }

.contact .grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.contact .grid .full { grid-column: 1 / -1; }
.contact label { display: grid; gap: 6px; color: var(--muted); }
.contact input, .contact textarea { width: 100%; padding: 12px 12px; border-radius: 12px; border: 1px solid var(--border); background: rgba(2,6,23,0.4); color: var(--text); }
.contact input:focus, .contact textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(110,231,255,0.15); }

.site-footer { border-top: 1px solid var(--border); padding: 20px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.to-top { text-decoration: none; color: var(--text); border: 1px solid var(--border); padding: 8px 10px; border-radius: 10px; }

@media (max-width: 700px) { .contact .grid { grid-template-columns: 1fr; } }