:root {
  --background: hsl(220, 20%, 6%);
  --foreground: hsl(210, 40%, 98%);
  --card: hsl(220, 20%, 10%);
  --card-foreground: hsl(210, 40%, 98%);
  --primary: hsl(185, 100%, 50%);
  --secondary: hsl(220, 20%, 14%);
  --muted: hsl(220, 15%, 18%);
  --muted-foreground: hsl(215, 20%, 65%);
  --border: hsl(220, 20%, 18%);
  --radius: 0.75rem;
  --font-sans: 'Inter', sans-serif;
  --font-display: 'Space Grotesk', sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: radial-gradient(circle at top, #0b1220, var(--background));
  color: var(--foreground);
}

a {
  color: inherit;
  text-decoration: none;
}

.header {
  position: sticky;
  top: 0;
  z-index: 10;
}

.form-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ---------- Glass / Cards ---------- */

.glass-card {
  background: hsl(220 20% 10% / 0.4);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.card {
  background: var(--card);
  color: var(--card-foreground);
  padding: 24px;
  border-radius: var(--radius);
  margin-bottom: 30px;
}

/* ---------- Branding ---------- */

.logo {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--foreground);
}

.logo span {
  color: var(--foreground);
}

.gradient-text {
  background: linear-gradient(90deg,
      var(--primary),
      var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ================= BANNER ================= */
.banner {
  padding: 70px 20px 70px;
  display: flex;
  justify-content: center;
  position: relative;
  
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  margin-bottom: 20px;
}

.hackathon-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top,
      hsl(185 100% 50% / 0.15),
      transparent 45%),
    linear-gradient(180deg,
      hsl(220 20% 6% / 0.75),
      hsl(220 20% 6% / 0.95));
}

.hackathon-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
  padding: 20px;
  text-align: center;
}

.banner h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  margin-bottom: 16px;
}


.banner h1 span {
  color: var(--primary);
}


.banner p {
  max-width: 720px;
  margin: auto;
  font-size: 1.05rem;
  color: var(--muted-foreground);
}

/* HERO */
.hero {
  padding: 10px 20px 50px;
  text-align: center;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  margin-bottom: 12px;
}

.hero span {
  color: var(--primary);
}

.hero p {
  max-width: 720px;
  margin: 0 auto;
  color: var(--muted-foreground);
  font-size: 1.05rem;
}

/* CONTENT */
.container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 32px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}

h1 {
  font-family: var(--font-display);
  color: var(--primary);
  margin-top: 0;
}

h2 {
  font-family: var(--font-display);
  color: var(--primary);
  margin-top: 0;
}

h4 {
  font-family: var(--font-display);
  color: var(--primary);
  margin-top: 0;
  margin-bottom: 5px;
}

p,
li {
  color: var(--muted-foreground);
  line-height: 1.8;
  font-size: 0.95rem;
}

ul {
  padding-left: 40px;
}