:root {
  --bg-top: #0b1222;
  --bg-bottom: #030711;
  --accent-1: #7c5cff;
  --accent-2: #00d4ff;
  --accent-3: #00ffa3;
  --text-1: #e7ecf3;
  --text-2: #a8b0bf;
  --glass: rgba(255, 255, 255, 0.06);
  --glass-stroke: rgba(255, 255, 255, 0.18);
  --shadow-1: 0 10px 40px rgba(0, 0, 0, 0.45);
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, 'Helvetica Neue', Arial, 'Noto Sans', 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';
  color: var(--text-1);
  background: linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
  overflow-x: hidden;
}
#bg-canvas {
  position: fixed; inset: 0; width: 100%; height: 100%; z-index: -1;
  background:
    radial-gradient(1200px 600px at 70% 10%, rgba(124, 92, 255, 0.15), transparent 60%),
    radial-gradient(900px 500px at 20% 80%, rgba(0, 212, 255, 0.12), transparent 60%);
}
.site-header { width: 100%; padding: 22px 28px; display: flex; align-items: center; justify-content: center; }
.brand { display: inline-flex; gap: 12px; text-decoration: none; align-items: center; }
.brand-logo { width: 36px; height: 36px; }
.brand-name { font-weight: 800; letter-spacing: 0.5px; color: var(--text-1); }
.hero { max-width: 1120px; margin: 0 auto; padding: 18px 18px 72px; display: grid; gap: 18px; }
.card { position: relative; border-radius: 18px; padding: 28px; box-shadow: var(--shadow-1); }
.glass { background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03)); backdrop-filter: blur(14px); border: 1px solid var(--glass-stroke); }
.brand-mark { display: flex; justify-content: center; margin-bottom: 10px; }
.brand-mark img { width: 72px; height: 72px; filter: drop-shadow(0 6px 24px rgba(124, 92, 255, 0.45)); }
.card h1 { margin: 10px 0 6px; font-size: 36px; line-height: 1.15; text-align: center; }
.tagline { margin: 0 auto 18px; text-align: center; color: var(--text-2); }
.email-row { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; align-items: center; margin: 16px 0 10px; }
.email-link {
  color: var(--text-1); text-decoration: none; padding: 10px 14px; border-radius: 12px;
  border: 1px dashed rgba(255, 255, 255, 0.18); background: rgba(255, 255, 255, 0.03);
}
.btn {
  appearance: none; border: none; padding: 12px 18px; border-radius: 12px;
  font-weight: 600; cursor: pointer; transition: transform .12s, box-shadow .12s, background .2s, color .2s;
}
.btn:active { transform: translateY(1px); }
.btn.primary {
  color: #0a0f1c; background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  box-shadow: 0 10px 30px rgba(124, 92, 255, 0.35), 0 6px 20px rgba(0, 212, 255, 0.25);
}
.btn.ghost { color: var(--text-1); background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.22); }
.btn.icon {
  display: inline-flex; align-items: center; gap: 8px; color: var(--text-1);
  background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.22);
}
.icon-copy {
  width: 16px; height: 16px; background: linear-gradient(135deg, var(--accent-2), var(--accent-3));
  -webkit-mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="%23000" d="M16 1H4c-1.1 0-2 .9-2 2v12h2V3h12V1zm3 4H8c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h11c1.1 0 2-.9 2-2V7c0-1.1-.9-2-2-2zm0 16H8V7h11v14z"/></svg>') center / contain no-repeat;
          mask: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path fill="%23000" d="M16 1H4c-1.1 0-2 .9-2 2v12h2V3h12V1zm3 4H8c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h11c1.1 0 2-.9 2-2V7c0-1.1-.9-2-2-2zm0 16H8V7h11v14z"/></svg>') center / contain no-repeat;
}
.actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin: 8px 0 6px; }
.btn.chat {
  color: var(--text-1);
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.18), rgba(0, 255, 163, 0.18));
  border: 1px solid rgba(0, 212, 255, 0.35);
  box-shadow: 0 8px 24px rgba(0, 212, 255, 0.18);
}
.chat-note {
  margin: 12px auto 0;
  max-width: 36rem;
  text-align: center;
  color: var(--text-2);
  font-size: 14px;
}
.highlights {
  margin: 18px 0 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap;
  gap: 12px 18px; justify-content: center; color: var(--text-2);
}
.highlights span { color: var(--text-1); }
.form-section { background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.04)); }
.form-section.hidden { display: none; }
.form-section h2 { margin: 0 0 14px; }
.grid { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 720px) { .grid { grid-template-columns: 1fr 1fr; }
}
.field { display: grid; gap: 8px; }
.field span { color: var(--text-2); font-size: 14px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.18); background: rgba(8, 12, 24, 0.6); color: var(--text-1);
}
.field input::placeholder, .field textarea::placeholder { color: #6d7686; }
.form-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.hint { margin: 10px 0 0; color: var(--text-2); font-size: 13px; }
.site-footer { text-align: center; color: var(--text-2); padding: 24px 18px 40px; }
.toast {
  position: fixed; left: 50%; bottom: 22px; transform: translateX(-50%) translateY(20px);
  background: rgba(255, 255, 255, 0.1); border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--text-1); padding: 12px 16px; border-radius: 12px; box-shadow: var(--shadow-1);
  opacity: 0; pointer-events: none; transition: opacity .2s ease, transform .2s ease;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.hp { display: none; }