@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500;600&family=DM+Mono:wght@400;500&family=Fraunces:wght@700;900&display=swap');

:root {
  --bg: #fafaf9;
  --surface: #ffffff;
  --surface2: #f5f5f4;
  --border: #e7e5e4;
  --text: #1c1917;
  --text-muted: #78716c;
  --accent: #0d9488;
  --accent2: #0f766e;
  --green: #16a34a;
  --red: #dc2626;
  --blue: #2563eb;
  --shadow: 0 2px 16px rgba(0,0,0,0.06);
  --radius: 16px;
  --radius-sm: 8px;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'DM Mono', monospace;
  --font-display: 'Fraunces', serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font-body); background: var(--bg); color: var(--text); min-height: 100vh; }

.site-header { background: var(--surface); border-bottom: 1px solid var(--border); padding: 36px 24px 30px; text-align: center; }
.header-inner { max-width: 680px; margin: 0 auto; }
.badge { display: inline-block; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); border: 1.5px solid var(--accent); border-radius: 100px; padding: 3px 12px; margin-bottom: 12px; }
h1 { font-family: var(--font-display); font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 900; line-height: 1.1; }
h1 .accent { color: var(--accent); }
.subtitle { margin-top: 8px; color: var(--text-muted); font-size: 0.9rem; }
.nav-links { margin-top: 14px; font-size: 0.83rem; }
.nav-links a { color: var(--accent); text-decoration: none; font-weight: 600; }
.nav-links a:hover { text-decoration: underline; }

.container { max-width: 800px; margin: 0 auto; padding: 36px 18px 60px; display: flex; flex-direction: column; gap: 24px; }

.card { background: var(--surface); border-radius: var(--radius); border: 1px solid var(--border); padding: 32px; box-shadow: var(--shadow); position: relative; animation: fadeUp 0.4s ease both; }
.card:nth-child(2) { animation-delay: 0.1s; }
.card:nth-child(3) { animation-delay: 0.2s; }
@keyframes fadeUp { from { opacity:0; transform:translateY(14px); } to { opacity:1; transform:translateY(0); } }
.card-label { position: absolute; top: 18px; right: 22px; font-family: var(--font-display); font-size: 2.5rem; font-weight: 900; color: var(--border); user-select: none; }
.card h2 { font-family: var(--font-display); font-size: 1.35rem; font-weight: 700; margin-bottom: 5px; }
.card-desc { color: var(--text-muted); font-size: 0.87rem; margin-bottom: 20px; }

.btn-group { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }
.btn { display: inline-flex; align-items: center; gap: 7px; padding: 10px 20px; border-radius: var(--radius-sm); font-family: var(--font-body); font-size: 0.9rem; font-weight: 600; cursor: pointer; border: none; transition: transform 0.15s, box-shadow 0.15s, opacity 0.15s; }
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 2px 8px rgba(13,148,136,0.28); }
.btn-primary:hover:not(:disabled) { box-shadow: 0 4px 14px rgba(13,148,136,0.42); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--accent); border: 1.5px solid var(--accent); }
.btn-outline:hover:not(:disabled) { background: var(--accent); color: #fff; }

.model-status-grid { display: flex; gap: 12px; flex-wrap: wrap; }
.model-status-item { flex: 1; min-width: 160px; display: flex; align-items: center; gap: 12px; background: var(--surface2); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px 16px; }
.model-status-item strong { display: block; font-size: 0.88rem; }
.model-status-item small { font-size: 0.78rem; color: var(--text-muted); font-family: var(--font-mono); }
.dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.dot-grey   { background: #d1d5db; }
.dot-green  { background: var(--green); box-shadow: 0 0 6px rgba(22,163,74,0.4); }
.dot-yellow { background: #f59e0b; }

.status { margin-top: 14px; padding: 10px 14px; border-radius: var(--radius-sm); font-size: 0.87rem; font-weight: 500; border-left: 3px solid; }
.status.success { background: #f0fdf4; border-color: var(--green); color: #166534; }
.status.error   { background: #fef2f2; border-color: var(--red); color: #991b1b; }
.status.info    { background: #f0fdfa; border-color: var(--accent); color: var(--accent2); }

.input-row { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 10px; }
.input-row input { flex: 1; min-width: 160px; font-family: var(--font-mono); font-size: 1rem; padding: 10px 14px; border: 1.5px solid var(--border); border-radius: var(--radius-sm); background: var(--surface2); color: var(--text); outline: none; transition: border-color 0.15s; }
.input-row input:focus { border-color: var(--accent); }

.ideal-note { font-size: 0.83rem; color: var(--text-muted); margin-bottom: 18px; }
.mono { font-family: var(--font-mono); color: var(--accent); font-weight: 600; }

.pred-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px,1fr)); gap: 14px; animation: fadeUp 0.3s ease; }
.pred-box { border-radius: var(--radius-sm); padding: 20px 18px; border: 1px solid var(--border); }
.pred-box.saved { background: #f0fdfa; border-color: var(--accent); }
.pred-box.fresh { background: #eff6ff; border-color: var(--blue); }
.pred-box.diff  { background: var(--surface2); }
.pred-box-label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); font-weight: 600; margin-bottom: 8px; }
.pred-box-value { font-family: var(--font-display); font-size: 2rem; font-weight: 700; line-height: 1; margin-bottom: 6px; }
.pred-box.saved .pred-box-value { color: var(--accent); }
.pred-box.fresh .pred-box-value { color: var(--blue); }
.pred-box-err { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-muted); }

.batch-table-wrap { margin-top: 18px; border-radius: var(--radius-sm); border: 1px solid var(--border); overflow-x: auto; }
.batch-table { width: 100%; border-collapse: collapse; font-family: var(--font-mono); font-size: 0.82rem; }
.batch-table thead th { background: var(--surface2); padding: 9px 14px; text-align: left; font-size: 0.73rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); }
.batch-table tbody tr { border-top: 1px solid var(--border); }
.batch-table tbody tr:hover { background: var(--surface2); }
.batch-table tbody td { padding: 9px 14px; }
.batch-table .good { color: var(--green); font-weight: 600; }
.batch-table .ok   { color: #d97706; font-weight: 600; }

.site-footer { text-align: center; padding: 18px; font-size: 0.78rem; color: var(--text-muted); border-top: 1px solid var(--border); font-family: var(--font-mono); }
@media (max-width: 520px) { .card { padding: 20px 16px; } }