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

:root {
  --bg: #0d1117;
  --surface: #161b22;
  --surface-hover: #1c2333;
  --primary: #00bcd4;
  --primary-dim: rgba(0, 188, 212, 0.12);
  --secondary: #ffb74d;
  --text: #c9d1d9;
  --heading: #f0f6fc;
  --muted: #6e7681;
  --border: #30363d;
  --nav-bg: rgba(13, 17, 23, 0.92);
  --max-width: 1100px;
  --radius: 8px;
  --transition: 0.2s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--heading);
  font-weight: 600;
  line-height: 1.3;
}

h1 {
  font-size: 3rem;
  font-weight: 700;
}

h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

h3 {
  font-size: 1.25rem;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--secondary);
}

img {
  max-width: 100%;
  display: block;
}

.accent-font {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 64px;
}

.nav-brand {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--heading);
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

.logo-white {
  filter: brightness(0) invert(1);
}

.hero-logo {
  width: 300px;
  height: auto;
  margin: 0 auto 1.5rem auto;
  display: block;
}

.footer-logo {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 0.25rem;
}

.nav-link {
  display: block;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  transition: color var(--transition), background-color var(--transition);
}

.nav-link:hover {
  color: var(--heading);
  background-color: var(--surface);
}

.nav-link.active {
  color: var(--primary);
  background-color: var(--primary-dim);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  transition: color var(--transition);
  line-height: 1;
}

.nav-toggle:hover {
  color: var(--heading);
}

.hero {
  padding: 6rem 0 5rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.hero h1 {
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.hero .hero-tagline {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 600px;
  margin: 0 auto;
}

.hero .hero-accent {
  display: inline-block;
  width: 60px;
  height: 3px;
  background: var(--primary);
  margin-bottom: 1.5rem;
  border-radius: 2px;
}

.hero .hero-secondary-accent {
  background: var(--secondary);
  margin-left: 0.5rem;
}

section {
  padding: 5rem 0;
  scroll-margin-top: 80px;
}

section:nth-child(even) {
  background-color: var(--surface);
}

.section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
  display: block;
}

.mission-text {
  font-size: 1.15rem;
  max-width: 800px;
  line-height: 1.8;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.card-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--primary-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary);
}

.card h3 {
  margin-bottom: 0.25rem;
}

.card .card-role {
  font-size: 0.875rem;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.card .card-bio {
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.6;
}

.link-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.5rem;
  transition: border-color var(--transition), background-color var(--transition);
  cursor: pointer;
}

.link-card:hover {
  border-color: var(--primary);
  background-color: var(--surface-hover);
}

.link-card .link-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-dim);
  border-radius: var(--radius);
  color: var(--primary);
}

.link-card .link-info {
  flex: 1;
}

.link-card .link-info h3 {
  font-size: 1rem;
  margin-bottom: 0.15rem;
}

.link-card .link-info span {
  font-size: 0.85rem;
  color: var(--muted);
}

.link-card .link-arrow {
  color: var(--muted);
  transition: color var(--transition), transform var(--transition);
  font-size: 1.2rem;
}

.link-card:hover .link-arrow {
  color: var(--primary);
  transform: translateX(4px);
}

.link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--muted);
  margin-bottom: 0.5rem;
  letter-spacing: 0.03em;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  color: var(--heading);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-dim);
}

.form-group textarea {
  resize: vertical;
  min-height: 140px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--primary);
  color: var(--bg);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.75rem 1.75rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color var(--transition), transform var(--transition);
  letter-spacing: 0.03em;
}

.btn:hover {
  background: var(--secondary);
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.info-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  max-width: 600px;
}

.info-block p {
  font-size: 1rem;
  line-height: 1.8;
}

.info-block .info-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.founder-card {
  display: flex;
  gap: 2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  max-width: 800px;
  transition: border-color var(--transition);
  color: inherit;
  text-decoration: none;
}

.founder-card:hover {
  border-color: var(--primary);
}

.founder-avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: var(--primary-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 2rem;
  font-weight: 600;
  color: var(--primary);
}

.founder-info h3 {
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

.founder-info .founder-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--primary);
  margin-bottom: 1rem;
  letter-spacing: 0.03em;
}

.founder-info p {
  line-height: 1.7;
  color: var(--text);
}

.about-text {
  font-size: 1.1rem;
  max-width: 800px;
  line-height: 1.8;
}

.event-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}

.event-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color var(--transition);
}

.event-card:hover {
  border-color: var(--primary);
}

.event-date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--primary);
  display: block;
  margin-bottom: 0.75rem;
}

.event-card p {
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.event-link {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: color var(--transition);
}

.event-link:hover {
  color: var(--secondary);
}

footer {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: 50;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
}

body {
  padding-bottom: 80px;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-brand {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  color: var(--heading);
}

.footer-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.2rem;
}

.footer-credit {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.7rem;
  color: var(--muted);
}

.footer-credit a {
  color: var(--muted);
  display: flex;
  align-items: center;
  transition: color var(--transition);
}

.footer-credit a:hover {
  color: var(--primary);
}

.footer-credit svg {
  width: 12px;
  height: 12px;
}

.footer-accent {
  width: 40px;
  height: 2px;
  background: var(--primary);
  margin: 0.75rem auto 0;
  border-radius: 1px;
}

@media (max-width: 768px) {
  h1 {
    font-size: 2.25rem;
  }

  h2 {
    font-size: 1.6rem;
  }

  .hero {
    padding: 4rem 0 3rem;
  }

  section {
    padding: 3rem 0;
  }

  .nav-toggle {
    display: block;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--nav-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0.5rem 1rem 1rem;
    gap: 0;
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-link {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
  }

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

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

  .founder-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1rem;
  }

  .founder-info {
    text-align: center;
  }

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

  .footer-right {
    align-items: center;
  }
}