:root {
  --bg: #0d141f;
  --card: #121d2b;
  --card-2: #17263a;
  --text: #eaf1ff;
  --muted: #9eb0cc;
  --accent: #2fb8ff;
  --accent-2: #59ffa3;
  --danger: #ff6e7a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  background: radial-gradient(circle at top right, #1d2d44 0%, var(--bg) 55%);
  color: var(--text);
}

.wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 24px 16px 36px;
  display: grid;
  gap: 16px;
}

.header-card,
.card {
  background: linear-gradient(160deg, var(--card), var(--card-2));
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 18px;
  padding: 18px;
}

h1,
h2 {
  margin: 0 0 10px;
}

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

.home-link {
  display: inline-block;
  margin-top: 12px;
  color: var(--accent);
  text-decoration: none;
}

form {
  display: grid;
  gap: 10px;
  margin-top: 10px;
}

label {
  font-size: 0.92rem;
  color: var(--muted);
}

input,
textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 10px;
  background: rgba(8, 14, 22, 0.8);
  color: var(--text);
  font-family: "IBM Plex Mono", monospace;
  padding: 10px 12px;
}

textarea {
  min-height: 90px;
  resize: vertical;
}

button {
  border: 0;
  border-radius: 10px;
  padding: 10px 14px;
  font-weight: 700;
  cursor: pointer;
  color: #061018;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.chat-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.messages {
  margin-top: 12px;
  display: grid;
  gap: 10px;
  max-height: 58vh;
  overflow-y: auto;
  padding-right: 6px;
}

.msg {
  border-radius: 12px;
  padding: 10px 12px;
  line-height: 1.45;
  white-space: pre-wrap;
}

.msg.user {
  background: rgba(47, 184, 255, 0.16);
  border: 1px solid rgba(47, 184, 255, 0.35);
}

.msg.assistant {
  background: rgba(89, 255, 163, 0.12);
  border: 1px solid rgba(89, 255, 163, 0.25);
}

.chat-form {
  margin-top: 12px;
}

.status {
  min-height: 20px;
  margin-top: 8px;
  color: var(--muted);
}

.status.error {
  color: var(--danger);
}

.hidden {
  display: none;
}