:root {
  --orange: #f28c28;
  --orange-dark: #d96f00;
  --blue: #0057a8;
  --blue-dark: #003a70;
  --sky: #eaf5ff;
  --white: #ffffff;
  --text: #1f2a37;
  --muted: #637083;
  --shadow: 0 20px 50px rgba(0, 57, 112, 0.15);
  --radius: 28px;
  
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Montserrat', sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
.section-padding { padding: 90px 7%; }
.section-light { background: linear-gradient(135deg, #fff7ed, var(--sky)); }

.site-header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(16px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.06);
}
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 7%;
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; color: var(--blue); }
.brand-mark {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--orange), var(--blue));
  color: white;
  letter-spacing: 1px;
}
.nav-links { display: flex; gap: 28px; font-weight: 600; color: var(--blue-dark); }
.nav-links a:hover { color: var(--orange-dark); }
.menu-toggle { display: none; border: 0; background: var(--blue); color: white; padding: 8px 12px; border-radius: 10px; font-size: 20px; }

.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 50px;
  align-items: center;
  padding-top: 140px;
  background:
    radial-gradient(circle at top left, rgba(242,140,40,0.22), transparent 35%),
    radial-gradient(circle at bottom right, rgba(0,87,168,0.2), transparent 36%),
    #ffffff;
}
.eyebrow { color: var(--orange-dark); font-weight: 800; text-transform: uppercase; letter-spacing: 2px; margin-bottom: 12px; }
h1 { font-size: clamp(2.8rem, 7vw, 5.8rem); line-height: 0.95; color: var(--blue-dark); margin-bottom: 24px; }
h2 { font-size: clamp(2rem, 4vw, 3.2rem); color: var(--blue-dark); line-height: 1.1; margin-bottom: 16px; }
.hero-text { max-width: 720px; color: var(--muted); font-size: 1.15rem; margin-bottom: 30px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 35px; }
.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  border-radius: 999px;
  padding: 14px 28px;
  font-weight: 800;
  transition: 0.25s ease;
  cursor: pointer;
  border: none;
}
.btn-primary { background: linear-gradient(135deg, var(--orange), var(--orange-dark)); color: white; box-shadow: 0 12px 25px rgba(242,140,40,0.35); }
.btn-outline { border: 2px solid var(--blue); color: var(--blue); background: white; }
.btn:hover { transform: translateY(-3px); }
.event-info { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.event-info div {
  padding: 18px;
  border-radius: 20px;
  background: white;
  box-shadow: var(--shadow);
}
.event-info strong { display: block; color: var(--blue); }
.event-info span { color: var(--muted); font-size: 0.95rem; }

.hero-card {
  position: relative;
  overflow: hidden;
  padding: 42px;
  border-radius: var(--radius);
  background: linear-gradient(145deg, var(--blue), var(--blue-dark));
  color: white;
  box-shadow: var(--shadow);
}
.hero-card h2 { color: white; font-size: 5rem; }
.hero-card p { font-weight: 800; margin-bottom: 20px; color: #ffe3bf; }
.hero-card ul { list-style: none; display: grid; gap: 12px; position: relative; z-index: 2; }
.hero-card li::before { content: '✓'; color: var(--orange); margin-right: 10px; font-weight: 800; }
.circle { position: absolute; border-radius: 50%; opacity: 0.28; }
.circle.one { width: 180px; height: 180px; background: var(--orange); top: -55px; right: -45px; }
.circle.two { width: 120px; height: 120px; background: #fff; bottom: -40px; left: -30px; }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; background: var(--blue-dark); }
.stat {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 24px;
  padding: 30px;
  color: white;
  text-align: center;
}
.stat strong { display: block; font-size: 3rem; color: var(--orange); }

.section-title { text-align: center; max-width: 780px; margin: 0 auto 45px; }
.section-title p:last-child { color: var(--muted); }
.company-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.company-card {
  background: white;
  border-radius: 24px;
  padding: 28px;
  box-shadow: var(--shadow);
  border-top: 6px solid var(--orange);
}
.company-card span { color: var(--orange); font-weight: 800; font-size: 1.5rem; }
.company-card h3 { color: var(--blue); margin: 12px 0; }
.company-card p { color: var(--muted); }

.agenda { background: white; }
.timeline { max-width: 900px; margin: auto; display: grid; gap: 18px; }
.timeline-item {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 22px;
  align-items: start;
  background: #f8fbff;
  border-radius: 22px;
  padding: 24px;
  border-left: 6px solid var(--blue);
}
.timeline-item span { color: var(--orange-dark); font-size: 1.3rem; font-weight: 800; }
.timeline-item h3 { color: var(--blue-dark); }
.timeline-item p { color: var(--muted); }

.registration { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 40px; align-items: center; }
.notice { margin-top: 20px; padding: 18px; border-radius: 20px; background: var(--blue); color: white; font-weight: 700; }
.contact-form {
  background: white;
  padding: 34px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: grid;
  gap: 18px;
}
.contact-form label { display: grid; gap: 8px; font-weight: 700; color: var(--blue-dark); }
input, select, textarea {
  width: 100%;
  border: 1px solid #d8e1ec;
  border-radius: 16px;
  padding: 14px 16px;
  font: inherit;
  color: var(--text);
  background: #fbfdff;
}
textarea { min-height: 120px; resize: vertical; }

.footer {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  padding: 45px 7%;
  background: var(--blue-dark);
  color: white;
}
.footer h2 { color: white; }
.footer p { color: #d7ecff; }

.reveal { opacity: 0; transform: translateY(24px); transition: 0.7s ease; }
.reveal.active { opacity: 1; }

@media (max-width: 980px) {
  .hero, .registration { grid-template-columns: 1fr; }
  .company-grid { grid-template-columns: repeat(2, 1fr); }
  .event-info, .stats { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .section-padding { padding: 70px 6%; }
  .nav-links {
    display: none;
    position: absolute;
    top: 86px;
    left: 6%;
    right: 6%;
    background: white;
    padding: 20px;
    border-radius: 18px;
    box-shadow: var(--shadow);
    flex-direction: column;
  }
  .nav-links.show { display: flex; }
  .menu-toggle { display: block; }
  .company-grid { grid-template-columns: 1fr; }
  .timeline-item { grid-template-columns: 1fr; }
  .footer { flex-direction: column; }
}