:root {
  --bg: #0a0a0f;
  --surface: #111118;
  --border: #2a2a3a;
  --accent: #00ff88;
  --accent2: #ff6b35;
  --text: #e8e8f0;
  --muted: #888899;
  --font-display: 'Syne', sans-serif;
  --font-mono: 'Space Mono', monospace;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

.noise {
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

header {
  position: relative;
  z-index: 1;
  padding: 60px 40px 40px;
  border-bottom: 1px solid var(--border);
  animation: fadeDown 0.8s ease both;
}

.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 4px 12px;
  margin-bottom: 20px;
  border-radius: 2px;
}

h1 {
  font-family: var(--font-display);
  font-size: clamp(48px, 8vw, 96px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -2px;
  background: linear-gradient(
    135deg,
    #ffffff 0%,
    var(--accent) 60%,
    var(--accent2) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 24px;
}

.student-info {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--muted);
}

.student-info span b {
  color: var(--text);
}

main {
  position: relative;
  z-index: 1;
  max-width: 860px;
  margin: 0 auto;
  padding: 60px 40px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 40px;
  position: relative;
  animation: fadeUp 0.7s ease both;
  transition: border-color 0.3s;
}

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

.card:nth-child(1) {
  animation-delay: 0.1s;
}
.card:nth-child(2) {
  animation-delay: 0.2s;
}
.card:nth-child(3) {
  animation-delay: 0.3s;
}

.card-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 4px;
  margin-bottom: 12px;
}

h2 {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 16px;
  color: #fff;
}

p {
  font-size: 14px;
  line-height: 1.9;
  color: #bbbbc8;
}

p strong {
  color: var(--accent);
  font-weight: 700;
}

/* Pipeline Flow */
.pipeline-flow {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.step {
  background: #1a1a28;
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 8px 16px;
  font-size: 13px;
  color: var(--text);
  font-family: var(--font-mono);
  transition: all 0.3s;
}

.step:last-child {
  border-color: var(--accent);
  color: var(--accent);
}

.arrow {
  color: var(--muted);
  font-size: 18px;
}

/* Button */
button {
  margin-top: 20px;
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 14px;
  padding: 12px 28px;
  cursor: pointer;
  border-radius: 3px;
  transition: all 0.25s;
  letter-spacing: 1px;
}

button:hover {
  background: var(--accent);
  color: #000;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 255, 136, 0.2);
}

button:active {
  transform: translateY(0);
}

#status-box {
  margin-top: 16px;
  min-height: 36px;
}

#msg {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  opacity: 0;
  transition: opacity 0.4s;
}

#msg.visible {
  opacity: 1;
}

footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 32px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* Animations */
@keyframes fadeDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 600px) {
  header,
  main {
    padding: 32px 20px;
  }
  h1 {
    font-size: 48px;
  }
  .pipeline-flow {
    flex-direction: column;
    align-items: flex-start;
  }
  .arrow {
    transform: rotate(90deg);
  }
}