/* NNGen — TEXT to NEURAL NETWORK GENERATOR */
:root {
  --bg: #0d1117;
  --panel: #161b22;
  --panel2: #1c2330;
  --border: #2d333d;
  --text: #e6edf3;
  --muted: #9aa7b4;
  --accent: #58d5a9;   /* weights green */
  --accent2: #7aa2ff;  /* text blue */
  --warn: #f0b429;
  --error: #ff6b6b;
}
* { box-sizing: border-box; }
body {
  margin: 0 auto; max-width: 1080px; padding: 0 20px 40px;
  background: var(--bg); color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent2); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2 { line-height: 1.2; }
h1 { font-size: 2.3rem; margin: 0.4em 0; }
h2 { font-size: 1.35rem; margin: 1.6em 0 0.5em; }
code, pre { background: #0a0e14; border: 1px solid var(--border); border-radius: 6px; }
code { padding: 1px 6px; font-size: 0.9em; }
pre { padding: 14px; overflow-x: auto; font-size: 0.85em; line-height: 1.5; }
table { border-collapse: collapse; width: 100%; margin: 12px 0; font-size: 0.95em; }
th, td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; vertical-align: top; }
th { background: var(--panel2); color: var(--accent); }

header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 0; border-bottom: 1px solid var(--border);
}
.brand a { font-size: 1.5rem; font-weight: 800; color: var(--text); letter-spacing: 0.5px; }
.brand a:hover { text-decoration: none; color: var(--accent); }
.brand .tag {
  margin-left: 10px; font-size: 0.68rem; font-weight: 700; letter-spacing: 1.5px;
  color: var(--accent); border: 1px solid var(--accent); border-radius: 4px; padding: 3px 8px;
  vertical-align: middle; white-space: nowrap;
}
nav a { margin-left: 22px; color: var(--muted); font-weight: 500; }
nav a:hover { color: var(--text); text-decoration: none; }

.hero { text-align: center; padding: 54px 0 30px; }
.kicker {
  display: inline-block; font-size: 0.8rem; font-weight: 800; letter-spacing: 3px;
  color: var(--accent); border: 1px solid var(--accent);
  border-radius: 999px; padding: 6px 18px; margin-bottom: 18px;
  background: rgba(88, 213, 169, 0.07);
}
.lead { font-size: 1.15rem; color: var(--muted); max-width: 760px; margin: 0 auto; }
.cta { margin-top: 26px; }
.button {
  display: inline-block; background: var(--accent); color: #06281c; font-weight: 700;
  padding: 12px 26px; border-radius: 8px; font-size: 1.02rem; border: none; cursor: pointer;
}
.button:hover { filter: brightness(1.1); text-decoration: none; }
.button:disabled { opacity: 0.5; cursor: wait; }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 800px) { .grid2 { grid-template-columns: 1fr; } }
.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  padding: 18px 22px; margin: 10px 0;
}
.card h2 { margin-top: 0.2em; }
.card ul { padding-left: 20px; }
.card li { margin: 6px 0; }

.novelty {
  background: linear-gradient(135deg, rgba(122, 162, 255, 0.08), rgba(88, 213, 169, 0.08));
  border: 1px solid var(--accent); border-radius: 12px; padding: 20px 26px; margin: 26px 0;
}
.novelty h2 { margin-top: 0.2em; color: var(--accent); }
.compare th:first-child, .compare td:first-child { color: var(--muted); white-space: nowrap; }

.demo-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 18px; align-items: start; }
@media (max-width: 900px) { .demo-grid { grid-template-columns: 1fr; } }
.form-card label { display: block; margin: 12px 0 4px; color: var(--muted); font-size: 0.9em; }
.form-card select, .form-card textarea, .form-card input {
  width: 100%; background: #0a0e14; color: var(--text);
  border: 1px solid var(--border); border-radius: 6px; padding: 9px 10px; font: inherit;
}
.form-card textarea { resize: vertical; }
.form-card .row { display: flex; gap: 12px; margin-top: 6px; }
.form-card .row > div { flex: 1; }
.form-card .button { margin-top: 16px; width: 100%; }
.hint { color: var(--muted); font-size: 0.85em; }
.status { font-size: 0.95em; }
.status.ok { color: var(--accent); }
.status.warn { color: var(--warn); }
.error { color: var(--error); background: rgba(255, 107, 107, 0.08); border: 1px solid var(--error); border-radius: 8px; padding: 12px 16px; }
.placeholder {
  color: var(--muted); border: 2px dashed var(--border); border-radius: 10px;
  padding: 40px 20px; text-align: center;
}
.progress { display: flex; align-items: center; gap: 14px; padding: 20px 4px; }
.spinner {
  width: 26px; height: 26px; border: 3px solid var(--border); border-top-color: var(--accent);
  border-radius: 50%; animation: spin 1s linear infinite; flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }
.resline { margin: 8px 0; }
.resline .ok { color: var(--accent); font-weight: 700; }
.resline .warn { color: var(--warn); font-weight: 700; }
.artifact { width: 100%; border: 1px solid var(--border); border-radius: 8px; margin-top: 10px; background: #0a0e14; }

footer { border-top: 1px solid var(--border); margin-top: 50px; padding: 18px 0; color: var(--muted); font-size: 0.88em; }