:root {
  --bg: #0e1116;
  --bg-soft: #161b23;
  --panel: #1b212b;
  --panel-2: #20283340;
  --border: #2a323e;
  --text: #e6ebf2;
  --muted: #8d99a8;
  --accent: #4f8cff;
  --accent-2: #6ee7b7;
  --go: #34d399;
  --wait: #fbbf24;
  --stop: #f87171;
  --content: #f472b6;
  --consulting: #38bdf8;
  --product: #818cf8;
  --investment: #34d399;
  --ecommerce: #fb923c;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  font-synthesis: none;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(1200px 600px at 80% -10%, #1d2a44 0%, transparent 55%),
    radial-gradient(900px 500px at -10% 10%, #15242a 0%, transparent 50%),
    var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { width: min(1080px, 92vw); margin: 0 auto; }

/* Topbar */
.topbar {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(14, 17, 22, 0.72);
  border-bottom: 1px solid var(--border);
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 62px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { font-size: 26px; }
.brand-title { font-weight: 700; font-size: 17px; letter-spacing: 0.2px; }
.brand-sub { font-size: 11px; color: var(--muted); letter-spacing: 1.5px; text-transform: uppercase; }
.ghost-link { color: var(--muted); text-decoration: none; font-size: 14px; }
.ghost-link:hover { color: var(--text); }

/* Hero */
.hero { padding: 48px 0 22px; }
.hero h1 { font-size: clamp(26px, 5vw, 42px); line-height: 1.25; margin: 0 0 16px; font-weight: 800; }
.hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, var(--content), var(--product), var(--investment), var(--ecommerce));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lede { font-size: clamp(15px, 2.1vw, 18px); color: #c4ccd6; max-width: 760px; margin: 0; }
.lede strong { color: var(--text); }

/* Workbench */
.workbench {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
  margin-top: 26px; align-items: start;
}
.panel {
  background: linear-gradient(180deg, var(--panel), #161b23);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 18px; border-bottom: 1px solid var(--border);
}
.panel-head h2 { font-size: 15px; margin: 0; font-weight: 700; }
.panel-actions { display: flex; gap: 8px; }

textarea#input {
  width: 100%; min-height: 320px; resize: vertical;
  border: none; outline: none; background: transparent;
  color: var(--text); padding: 16px 18px; font-size: 14.5px; line-height: 1.7;
  font-family: inherit;
}
textarea#input::placeholder { color: #5e6b7a; }
.input-foot {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 18px; border-top: 1px solid var(--border);
}

/* Buttons */
.btn {
  border: 1px solid transparent; border-radius: 10px; cursor: pointer;
  font-size: 13.5px; font-weight: 600; padding: 9px 16px; font-family: inherit;
  transition: transform 0.06s ease, background 0.15s ease, border-color 0.15s ease, opacity 0.15s;
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 6px 18px rgba(79, 140, 255, 0.35); }
.btn-primary:hover { background: #6a9cff; }
.btn-soft { background: #263041; color: var(--text); border-color: var(--border); }
.btn-soft:hover { background: #2e3a4d; }
.btn-ghost { background: transparent; color: var(--muted); border-color: var(--border); }
.btn-ghost:hover { color: var(--text); }
.muted { color: var(--muted); font-size: 13px; }

/* Summary */
.summary { padding: 16px 18px; border-bottom: 1px solid var(--border); }
.summary-row { display: flex; flex-wrap: wrap; gap: 10px; }
.stat {
  display: flex; align-items: center; gap: 8px;
  background: var(--panel-2); border: 1px solid var(--border);
  padding: 7px 12px; border-radius: 999px; font-size: 13px;
}
.stat b { font-size: 15px; }
.stat .dot { width: 9px; height: 9px; }
.dir-bars { margin-top: 14px; display: grid; gap: 7px; }
.dir-bar { display: grid; grid-template-columns: 96px 1fr 28px; align-items: center; gap: 10px; font-size: 12.5px; }
.dir-bar .track { height: 8px; background: #222b36; border-radius: 999px; overflow: hidden; }
.dir-bar .fill { height: 100%; border-radius: 999px; }

/* Results */
.results { padding: 14px 18px 18px; display: grid; gap: 12px; max-height: 70vh; overflow-y: auto; }
.empty-state { text-align: center; color: var(--muted); padding: 48px 12px; }
.empty-emoji { font-size: 40px; margin-bottom: 8px; }

.card {
  border: 1px solid var(--border); border-radius: 12px;
  background: #171d26; padding: 14px 15px;
  border-left: 4px solid var(--product);
  animation: pop 0.25s ease both;
}
@keyframes pop { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.card-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 8px; }
.tag { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600;
  padding: 4px 10px; border-radius: 999px; background: var(--panel-2); border: 1px solid var(--border); }
.verdict { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: 999px; }
.verdict.go { background: rgba(52, 211, 153, 0.14); color: var(--go); }
.verdict.wait { background: rgba(251, 191, 36, 0.14); color: var(--wait); }
.verdict.stop { background: rgba(248, 113, 113, 0.14); color: var(--stop); }
.card-text { font-size: 14.5px; margin: 0 0 10px; }
.score-line { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.score-track { flex: 1; height: 6px; background: #222b36; border-radius: 999px; overflow: hidden; }
.score-fill { height: 100%; border-radius: 999px; }
.score-num { font-size: 12px; color: var(--muted); width: 52px; text-align: right; }
.card-meta { display: grid; gap: 7px; font-size: 13px; }
.meta-row { display: flex; gap: 8px; }
.meta-row .k { color: var(--muted); flex-shrink: 0; width: 56px; }
.meta-row .v { color: #d4dbe4; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.chip { font-size: 11px; color: var(--muted); background: #1f2731; border: 1px solid var(--border); padding: 2px 8px; border-radius: 6px; }

.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; }
.dot.go { background: var(--go); }
.dot.wait { background: var(--wait); }
.dot.stop { background: var(--stop); }

.dir-content { color: var(--content); }
.dir-consulting { color: var(--consulting); }
.dir-product { color: var(--product); }
.dir-investment { color: var(--investment); }
.dir-ecommerce { color: var(--ecommerce); }
.bl-content { border-left-color: var(--content); }
.bl-consulting { border-left-color: var(--consulting); }
.bl-product { border-left-color: var(--product); }
.bl-investment { border-left-color: var(--investment); }
.bl-ecommerce { border-left-color: var(--ecommerce); }

/* How */
.how { padding: 56px 0 20px; }
.how h2 { font-size: 22px; margin: 0 0 20px; }
.how-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.how-card { background: var(--bg-soft); border: 1px solid var(--border); border-radius: 12px; padding: 18px 20px; }
.how-card h3 { margin: 0 0 8px; font-size: 15px; }
.how-card p, .how-card li { color: #bcc5d0; font-size: 13.5px; }
.how-card ul { margin: 6px 0 0; padding-left: 18px; }
.how-card li { margin-bottom: 4px; }
.loop-card { background: linear-gradient(160deg, #15202e, #161b23); }

/* Footer */
.footer { border-top: 1px solid var(--border); margin-top: 48px; padding: 22px 0 40px; }
.footer p { color: var(--muted); font-size: 12.5px; text-align: center; margin: 0; }

/* Toast */
.toast {
  position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%);
  background: #222c3a; color: var(--text); border: 1px solid var(--border);
  padding: 10px 18px; border-radius: 10px; font-size: 13.5px; box-shadow: var(--shadow);
  z-index: 50; transition: opacity 0.2s, transform 0.2s;
}
.hidden { display: none; }

@media (max-width: 820px) {
  .workbench { grid-template-columns: 1fr; }
  .how-grid { grid-template-columns: 1fr; }
  .hero { padding: 32px 0 16px; }
  textarea#input { min-height: 220px; }
  .results { max-height: none; }
}