:root {
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  color: #0f172a;
}
body { margin: 0; background: #f5f7fb; line-height: 1.7; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 18px; }
.hero { background: linear-gradient(120deg, #0f6efc, #5b1bff); color: #fff; padding: 56px 0 48px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 26px; align-items: center; }
.eyebrow { letter-spacing: 0.2em; text-transform: uppercase; font-size: 0.78rem; margin: 0 0 8px; }
.hero h1 { margin: 0 0 12px; font-size: clamp(2.1rem, 4vw, 3rem); }
.subtitle { margin: 0 0 12px; opacity: 0.95; }
.hero-bullets { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.hero-bullets span { padding: 8px 12px; border-radius: 999px; background: rgba(255, 255, 255, 0.16); font-weight: 700; }
.hero-card { background: rgba(255, 255, 255, 0.12); border: 1px solid rgba(255, 255, 255, 0.25); border-radius: 20px; padding: 22px; box-shadow: 0 18px 44px rgba(0, 0, 0, 0.18); }
.badge { display: inline-block; background: rgba(255, 255, 255, 0.2); padding: 6px 12px; border-radius: 12px; font-weight: 700; }
.main { padding: 34px 0 60px; }
.grid { display: grid; gap: 18px; }
.card { background: #fff; border-radius: 18px; padding: 20px; box-shadow: 0 18px 44px rgba(15, 23, 42, 0.08); border: 1px solid #e2e8f0; }
.card-head { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; flex-wrap: wrap; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { padding: 6px 10px; border-radius: 999px; background: #eef2ff; color: #1d4ed8; font-weight: 700; font-size: 0.9rem; }
.layout { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr); gap: 16px; margin-top: 14px; }
.input-col textarea { width: 100%; min-height: 200px; border: 1px solid #d6d9e8; border-radius: 12px; padding: 12px; font-size: 1rem; resize: vertical; }
.label-row { display: flex; justify-content: space-between; align-items: center; font-weight: 700; }
.muted { color: #64748b; }
.toolbar { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.toolbar label { display: inline-flex; align-items: center; gap: 6px; }
.cta-row { display: flex; gap: 10px; flex-wrap: wrap; }
.primary-btn, .secondary-btn, .ghost-btn { border: none; border-radius: 12px; padding: 10px 14px; font-weight: 800; cursor: pointer; transition: transform 0.15s ease, box-shadow 0.15s ease; }
.secondary-btn { background: #f8fafc; border: 1px solid #dbeafe; color: #0f172a; }
.ghost-btn { background: #fff; border: 1px solid #dbeafe; color: #0f6efc; }
.metrics { display: grid; gap: 12px; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.stat { background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 12px; padding: 10px; }
.stat strong { display: block; }
.readability { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; }
.readability .stat { background: #eef2ff; border-color: #dbeafe; }
.breakdown { margin-top: 16px; }
.breakdown-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; }
.legend { display: flex; gap: 6px; }
.pill { padding: 6px 10px; border-radius: 999px; font-weight: 700; color: #0f172a; }
.pill.short { background: #dcfce7; }
.pill.normal { background: #e0f2fe; }
.pill.long { background: #fee2e2; }
.table { border: 1px solid #e2e8f0; border-radius: 12px; overflow: hidden; }
.table-row { display: grid; grid-template-columns: 60px 1fr 80px 110px; gap: 8px; padding: 10px; border-bottom: 1px solid #e2e8f0; }
.table-row.head { background: #f8fafc; font-weight: 700; }
.table-row:last-child { border-bottom: none; }
.diff-short { background: #f0fdf4; }
.diff-normal { background: #eff6ff; }
.diff-long { background: #fef2f2; }
.history-list { display: grid; gap: 10px; }
.history-item { padding: 12px; border-radius: 12px; border: 1px solid #e2e8f0; background: #f8fafc; display: grid; gap: 6px; }
.info { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 12px; }
.info-card { background: #fff; border-radius: 16px; padding: 16px; border: 1px solid #e2e8f0; box-shadow: 0 12px 28px rgba(15, 23, 42, 0.06); }
.accordion details { border: 1px solid #e2e8f0; border-radius: 12px; padding: 10px 12px; margin-bottom: 10px; background: #fff; transition: transform 0.15s ease, box-shadow 0.15s ease; }
.accordion summary { cursor: pointer; font-weight: 700; }
.accordion details:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08); }

@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } .layout { grid-template-columns: 1fr; } .table-row { grid-template-columns: 50px 1fr 60px 90px; } }