:root {
  --bg: #0d0f12;
  --bg-2: #15181d;
  --card: #1b1f26;
  --line: #2a2f38;
  --text: #f2f4f7;
  --muted: #9aa3b2;
  --accent: #c6ff3d;
  --accent-ink: #0d0f12;
  --danger: #ff7a7a;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body { background: var(--bg); color: var(--text); font-family: Inter, system-ui, sans-serif; line-height: 1.55; }
h1, h2, h3 { font-family: Archivo, Inter, sans-serif; line-height: 1.15; }
a { color: var(--accent); }
[hidden] { display: none !important; }

.topbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; height: 64px; padding: 0 16px; border-bottom: 1px solid var(--line); background: var(--bg); }
.logo { font-family: Archivo, sans-serif; font-weight: 900; font-size: 20px; color: var(--text); text-decoration: none; }
.logo span { color: var(--accent); }
.topbar .actions { display: flex; gap: 8px; }

.center { min-height: calc(100% - 64px); display: grid; place-items: center; padding: 32px 16px; }
.panel { width: 100%; max-width: 460px; background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 32px 28px; }
.panel.wide { max-width: 680px; }
.panel h1 { font-size: 30px; margin-bottom: 8px; }
.panel h1 span { color: var(--accent); }
.panel > p { color: var(--muted); margin-bottom: 22px; }

form { display: grid; gap: 12px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 560px) { .grid2 { grid-template-columns: 1fr; } }
label { display: grid; gap: 6px; font-size: 13px; color: var(--muted); font-weight: 500; }
input, select, textarea { width: 100%; padding: 13px 14px; border-radius: 12px; border: 1px solid var(--line); background: var(--bg-2); color: var(--text); font: inherit; font-size: 15px; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); border-color: transparent; }
input[readonly] { opacity: .75; }
textarea { min-height: 80px; resize: vertical; }

.btn { display: inline-block; padding: 13px 22px; border-radius: 999px; font: inherit; font-weight: 600; font-size: 15px; border: 0; cursor: pointer; text-align: center; text-decoration: none; }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
.btn-small { padding: 8px 14px; font-size: 13px; }
.btn:disabled { opacity: .6; cursor: wait; }

.msg { font-size: 14px; min-height: 20px; }
.msg.error { color: var(--danger); }
.msg.ok { color: var(--accent); }
.links { margin-top: 18px; font-size: 14px; color: var(--muted); display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.links button { background: none; border: 0; color: var(--accent); font: inherit; cursor: pointer; padding: 0; }

/* Chat */
.chat { display: flex; flex-direction: column; height: calc(100% - 64px); max-width: 820px; margin: 0 auto; }
.chat-head { padding: 14px 16px; border-bottom: 1px solid var(--line); display: flex; align-items: center; gap: 12px; }
.avatar { width: 40px; height: 40px; border-radius: 12px; background: rgba(198,255,61,.14); color: var(--accent); display: grid; place-items: center; font-size: 20px; flex: none; }
.chat-head strong { display: block; }
.chat-head small { color: var(--muted); }
.chat-head .live-btn { margin-left: auto; white-space: nowrap; }
@media (max-width: 520px) { .chat-head { flex-wrap: wrap; } .chat-head .live-btn { margin-left: 52px; } }
.log { flex: 1; overflow-y: auto; padding: 20px 16px; display: flex; flex-direction: column; gap: 14px; }
.bubble { max-width: 85%; padding: 12px 16px; border-radius: 18px; white-space: pre-wrap; word-wrap: break-word; font-size: 15px; }
.bubble.user { align-self: flex-end; background: var(--accent); color: var(--accent-ink); border-bottom-right-radius: 6px; }
.bubble.assistant { align-self: flex-start; background: var(--card); border: 1px solid var(--line); border-bottom-left-radius: 6px; }
.bubble.typing { color: var(--muted); font-style: italic; }
.suggestions { display: flex; flex-wrap: wrap; gap: 8px; }
.suggestions button { background: var(--bg-2); border: 1px solid var(--line); color: var(--text); border-radius: 999px; padding: 8px 14px; font: inherit; font-size: 13px; cursor: pointer; }
.composer { display: flex; gap: 10px; padding: 12px 16px calc(12px + env(safe-area-inset-bottom)); border-top: 1px solid var(--line); background: var(--bg); }
.composer textarea { min-height: 48px; max-height: 160px; resize: none; }
.composer .btn { align-self: flex-end; }
.fineprint { text-align: center; color: var(--muted); font-size: 12px; padding: 0 16px 10px; }