:root {
  --bg: #f8f7ef;
  --surface: #ffffff;
  --ink: #10222d;
  --muted: #4d5e68;
  --accent: #ef6f3d;
  --accent-2: #0f8b8d;
  --ring: rgba(15, 139, 141, 0.22);
  --shadow: 0 18px 40px rgba(16, 34, 45, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Manrope", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 80% 0%, rgba(239, 111, 61, 0.16), transparent 30%),
    radial-gradient(circle at 0% 30%, rgba(15, 139, 141, 0.15), transparent 35%),
    var(--bg);
  line-height: 1.6;
}

.hero {
  position: relative;
  min-height: 92vh;
  padding: 1.25rem clamp(1rem, 2vw, 2rem) 5rem;
  display: grid;
  align-content: space-between;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: -40vmax;
  background:
    conic-gradient(from 120deg, rgba(239, 111, 61, 0.12), rgba(15, 139, 141, 0.06), rgba(16, 34, 45, 0.03), rgba(239, 111, 61, 0.12));
  animation: spin 30s linear infinite;
  z-index: 0;
}

@keyframes spin {
  to {
    transform: rotate(1turn);
  }
}

.top-nav,
.hero-content {
  position: relative;
  z-index: 1;
}

.top-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(16, 34, 45, 0.08);
  border-radius: 999px;
  padding: 0.65rem 1.1rem;
  backdrop-filter: blur(8px);
}

.brand {
  text-decoration: none;
  color: var(--ink);
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  gap: clamp(0.75rem, 1.6vw, 1.5rem);
}

.nav-links a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 600;
}

.hero-content {
  max-width: 760px;
  margin-top: 4rem;
}

.eyebrow {
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--accent-2);
  margin-bottom: 1rem;
}

h1,
h2,
h3 {
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  line-height: 1.2;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 6vw, 4.4rem);
}

h1 span {
  display: block;
  color: var(--accent);
}

.lead {
  font-size: clamp(1rem, 2.2vw, 1.35rem);
  color: var(--muted);
  margin: 1.2rem 0 2rem;
}

.btn {
  display: inline-block;
  padding: 0.85rem 1.3rem;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 700;
  background: linear-gradient(140deg, var(--accent), #f79b2e);
  color: #fff;
  box-shadow: 0 8px 24px rgba(239, 111, 61, 0.35);
  transform: translateY(0);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(239, 111, 61, 0.4);
}

main {
  width: min(1100px, 92vw);
  margin: -3rem auto 0;
  position: relative;
  z-index: 2;
}

.panel {
  background: var(--surface);
  border: 1px solid rgba(16, 34, 45, 0.08);
  border-radius: 20px;
  box-shadow: var(--shadow);
  padding: clamp(1.2rem, 3vw, 2.2rem);
  margin-bottom: 1.4rem;
}

.cards,
.functions-grid {
  display: grid;
  gap: 1rem;
}

.cards {
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
}

.card {
  border-radius: 16px;
  border: 1px solid rgba(16, 34, 45, 0.08);
  background: linear-gradient(160deg, #fff, #f2f7f8);
  padding: 1rem;
}

.split {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: 1.2fr 1fr;
}

.value-list {
  margin: 0;
  padding-left: 1.2rem;
}

.value-list li {
  margin-bottom: 0.7rem;
}

.value-list span {
  font-weight: 700;
}

.functions-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.functions-grid article {
  border: 1px solid rgba(16, 34, 45, 0.08);
  border-radius: 14px;
  padding: 1rem;
  background: #fbfcff;
}

.sponsor-panel {
  text-align: center;
}

.sponsor-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 1rem;
}

.sponsor-links a {
  text-decoration: none;
  color: #fff;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-2), #0c6f74);
  padding: 0.75rem 1rem;
  border-radius: 999px;
  box-shadow: 0 10px 22px rgba(15, 139, 141, 0.3);
}

.footer {
  width: min(1100px, 92vw);
  margin: 0 auto 2rem;
  padding: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
}

.footer a {
  color: var(--accent-2);
  text-decoration-thickness: 2px;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--ring);
  outline-offset: 3px;
}

@media (max-width: 840px) {
  .top-nav {
    border-radius: 18px;
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-links {
    flex-wrap: wrap;
  }

  .hero {
    min-height: 72vh;
    padding-bottom: 3rem;
  }

  .split {
    grid-template-columns: 1fr;
  }

  .footer {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }
}