:root {
  --bg: #0f172a;
  --panel: #111827;
  --card: #0b1221;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --accent: #22d3ee;
  --accent-2: #a855f7;
  --border: #1f2937;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at 20% 20%, rgba(34, 211, 238, 0.08), transparent 25%),
    radial-gradient(circle at 80% 0%, rgba(168, 85, 247, 0.08), transparent 25%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
}

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

a:hover {
  color: var(--accent-2);
}

header.hero {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  padding: 72px min(8vw, 96px) 32px;
  align-items: start;
}

.hero__content h1 {
  margin: 0;
  font-size: clamp(36px, 5vw, 56px);
}

.subtitle {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.5;
  max-width: 640px;
}

.eyebrow {
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--accent);
  margin: 0 0 8px;
  font-size: 12px;
}

.cta-row {
  display: flex;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 12px;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #0b1221;
  font-weight: 700;
  border: 1px solid transparent;
  box-shadow: var(--shadow);
  transition: transform 120ms ease, box-shadow 120ms ease, opacity 120ms ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(34, 211, 238, 0.25);
  opacity: 0.95;
}

.btn.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: none;
}

.btn-small {
  padding: 10px 14px;
  font-size: 14px;
}

.hero__card {
  background: linear-gradient(160deg, rgba(34, 211, 238, 0.07), rgba(12, 18, 32, 0.9));
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  box-shadow: var(--shadow);
}

.hero__card h3 {
  margin: 8px 0 6px;
}

.hero__card p {
  margin: 0;
  color: var(--muted);
}

.label {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 6px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  padding: 0 min(8vw, 96px) 48px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 20px;
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.card h2 {
  margin: 0 0 8px;
}

.card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.chips {
  list-style: none;
  padding: 0;
  margin: 8px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chips li {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 12px;
  font-weight: 600;
}

.timeline {
  list-style: none;
  padding: 0;
  margin: 8px 0 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.timeline__title {
  font-weight: 700;
}

.timeline__meta {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 4px;
}

.contact {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 16px;
  align-items: start;
}

.chat {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
  display: grid;
  gap: 10px;
  min-height: 260px;
}

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

.chat__log {
  background: #0a1020;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  height: 220px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.message {
  padding: 10px 12px;
  border-radius: 12px;
  max-width: 80%;
  line-height: 1.4;
  word-break: break-word;
}

.message.user {
  align-self: flex-end;
  background: linear-gradient(140deg, rgba(34, 211, 238, 0.2), rgba(168, 85, 247, 0.2));
  border: 1px solid var(--border);
}

.message.bot {
  align-self: flex-start;
  background: #0f1a30;
  border: 1px solid var(--border);
}

.chat__form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
}

#chat-input {
  background: #0b1221;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  color: var(--text);
  font-size: 15px;
}

#chat-input:focus {
  outline: 2px solid var(--accent);
}

.chat__note {
  color: var(--muted);
  font-size: 12px;
  margin: 0;
}

.footer {
  padding: 32px;
  text-align: center;
  color: var(--muted);
}

@media (max-width: 900px) {
  header.hero {
    grid-template-columns: 1fr;
    padding: 48px 24px 16px;
  }

  .grid {
    padding: 0 24px 32px;
  }

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