:root {
  --radius: 18px;
  --shadow: 0 14px 40px rgba(15, 23, 42, 0.13);
  --focus: 0 0 0 4px rgba(37, 99, 235, 0.25);
}

body[data-theme="light"] {
  --bg: #f8fafc;
  --bg-accent: #e0f2fe;
  --card: #ffffff;
  --card-soft: #eef6ff;
  --text: #111827;
  --muted: #334155;
  --border: #cbd5e1;
  --primary: #1d4ed8;
  --primary-strong: #1e3a8a;
  --primary-text: #ffffff;
  --success: #047857;
  --warning: #92400e;
  --danger: #b91c1c;
  --chip: #dbeafe;
  --chip-text: #1e3a8a;
  --input: #ffffff;
  --table-head: #e2e8f0;
}

body[data-theme="dark"] {
  --bg: #05070d;
  --bg-accent: #0f172a;
  --card: #111827;
  --card-soft: #0b1220;
  --text: #f8fafc;
  --muted: #cbd5e1;
  --border: #475569;
  --primary: #93c5fd;
  --primary-strong: #bfdbfe;
  --primary-text: #07111f;
  --success: #86efac;
  --warning: #fde68a;
  --danger: #fca5a5;
  --chip: #1e3a8a;
  --chip-text: #eff6ff;
  --input: #0f172a;
  --table-head: #1e293b;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, var(--bg-accent), var(--bg) 32rem);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.55;
}

a { color: var(--primary-strong); font-weight: 700; }
body[data-theme="dark"] a { color: var(--primary); }
a:hover { text-decoration-thickness: 3px; }

.skip-link {
  position: absolute; top: -40px; left: 8px; background: var(--primary); color: var(--primary-text);
  padding: 10px 12px; border-radius: 10px; z-index: 1000;
}
.skip-link:focus { top: 8px; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: color-mix(in srgb, var(--card) 88%, transparent);
  border-bottom: 1px solid var(--border);
}
.nav-wrap {
  max-width: 1220px;
  margin: auto;
  padding: 12px 18px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 16px;
}
.brand { display: flex; gap: 12px; align-items: center; color: var(--text); text-decoration: none; }
.logo {
  width: 46px; height: 46px; display: grid; place-items: center; border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong)); color: var(--primary-text);
  font-size: 1.45rem; box-shadow: var(--shadow);
}
.brand-title { font-weight: 900; letter-spacing: -0.04em; line-height: 1.0; }
.brand-subtitle { color: var(--muted); font-size: 0.84rem; font-weight: 650; }
.navlinks { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; align-items: center; }
.navlinks a, .theme-toggle, .button, button, input[type="submit"] {
  border: 1px solid var(--border); background: var(--card); color: var(--text); border-radius: 999px;
  padding: 10px 14px; text-decoration: none; font-weight: 800; cursor: pointer;
  min-height: 42px;
  display: inline-flex; align-items: center; justify-content: center;
  max-width: 100%; white-space: normal; text-align: center; line-height: 1.2;
}
.navlinks a:hover, .theme-toggle:hover, .button:hover, button:hover, input[type="submit"]:hover {
  transform: translateY(-1px); border-color: var(--primary); box-shadow: 0 10px 24px rgba(15, 23, 42, 0.12);
}
button.primary, .button.primary, input.primary { background: var(--primary); color: var(--primary-text); border-color: var(--primary); }
button.danger, .button.danger { background: transparent; color: var(--danger); border-color: var(--danger); }
button.success, .button.success { background: transparent; color: var(--success); border-color: var(--success); }

.container { max-width: 1220px; margin: 0 auto; padding: 28px 18px 64px; }
.hero {
  display: grid; grid-template-columns: 1.25fr 0.75fr; gap: 24px; align-items: stretch;
}
.hero-panel, .card, .auth-card {
  border: 1px solid var(--border); background: color-mix(in srgb, var(--card) 94%, transparent); border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero-panel { padding: clamp(22px, 5vw, 44px); }
.hero h1 { font-size: clamp(2.1rem, 5vw, 4.9rem); line-height: 0.96; margin: 0 0 16px; letter-spacing: -0.08em; }
.hero p { font-size: 1.1rem; color: var(--muted); max-width: 70ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.action-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 10px 0 14px; overflow: visible; }
.action-row .button, .action-row button, .action-row input[type="submit"] { flex: 0 1 auto; }
.dashboard-actions { align-items: flex-start; }
.dashboard-actions .button { min-width: max-content; }
.badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.badge, .chip { background: var(--chip); color: var(--chip-text); border: 1px solid var(--border); border-radius: 999px; padding: 7px 10px; font-weight: 850; font-size: 0.84rem; }
.grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 18px; }
.card { padding: 20px; }
.span-3 { grid-column: span 3; }
.span-4 { grid-column: span 4; }
.span-5 { grid-column: span 5; }
.span-6 { grid-column: span 6; }
.span-7 { grid-column: span 7; }
.span-8 { grid-column: span 8; }
.span-9 { grid-column: span 9; }
.span-12 { grid-column: span 12; }
.stat { font-size: 2rem; font-weight: 950; letter-spacing: -0.05em; }
.kicker { color: var(--primary-strong); text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.12em; font-weight: 950; }
body[data-theme="dark"] .kicker { color: var(--primary); }
.muted { color: var(--muted); }
.section-title { margin: 34px 0 14px; font-size: clamp(1.5rem, 3vw, 2.4rem); letter-spacing: -0.05em; }

.auth-shell { max-width: 510px; margin: 42px auto; }
.auth-card { padding: 26px; }
label { display: block; font-weight: 850; margin: 12px 0 7px; }
input, select, textarea {
  width: 100%; border: 1px solid var(--border); background: var(--input); color: var(--text);
  border-radius: 14px; min-height: 44px; padding: 10px 12px; font: inherit;
}
textarea { min-height: 110px; resize: vertical; }
input:focus, select:focus, textarea:focus, button:focus, a:focus { outline: none; box-shadow: var(--focus); }
.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.form-row-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.inline-form { display: inline; }
.filters { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; align-items: end; }

.flash { margin: 12px 0; padding: 12px 14px; border: 1px solid var(--border); border-radius: 14px; background: var(--card-soft); font-weight: 800; }
.flash.success { border-color: var(--success); color: var(--success); }
.flash.error { border-color: var(--danger); color: var(--danger); }
.flash.info { border-color: var(--primary); color: var(--primary-strong); }
body[data-theme="dark"] .flash.info { color: var(--primary); }

.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table { border-collapse: collapse; width: 100%; min-width: 720px; }
th, td { padding: 12px 14px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
th { background: var(--table-head); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; }
tr:last-child td { border-bottom: none; }

.case-card { display: flex; flex-direction: column; gap: 10px; min-height: 100%; }
.case-card h3 { margin: 0; }
.case-meta { display: flex; flex-wrap: wrap; gap: 8px; }
.score-ring {
  width: 120px; height: 120px; border-radius: 999px; display: grid; place-items: center;
  background: conic-gradient(var(--primary) calc(var(--score, 0) * 1%), var(--border) 0);
  margin: 10px auto;
}
.score-ring span { background: var(--card); border-radius: 999px; width: 88px; height: 88px; display: grid; place-items: center; font-size: 1.7rem; font-weight: 950; }
.footer-note { margin-top: 38px; padding: 18px; border-top: 1px solid var(--border); color: var(--muted); font-size: 0.95rem; }
pre, code { background: var(--card-soft); color: var(--text); border-radius: 10px; padding: 2px 5px; }
pre { overflow-x: auto; padding: 14px; }
.callout { border-left: 6px solid var(--primary); padding: 14px 16px; background: var(--card-soft); border-radius: 12px; }
.disclaimer { border-left: 6px solid var(--warning); padding: 14px 16px; background: var(--card-soft); border-radius: 12px; }

@media (max-width: 560px) {
  .action-row { flex-direction: column; align-items: stretch; }
  .action-row .button, .action-row button, .action-row input[type="submit"] { width: 100%; min-width: 0; }
}

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .span-3, .span-4, .span-5, .span-6, .span-7, .span-8, .span-9 { grid-column: span 12; }
  .form-row, .form-row-3, .filters { grid-template-columns: 1fr; }
  .nav-wrap { grid-template-columns: 1fr; }
  .navlinks { justify-content: flex-start; }
}

.knowledge-card h2 { font-size: 1.15rem; line-height: 1.2; margin-top: 0; }
.knowledge-card p { margin-bottom: 0; }
.card > .table-wrap { margin-top: 12px; }
td code { white-space: nowrap; }
@media (max-width: 760px) {
  td code { white-space: normal; }
}