:root {
  --ink: #edf2f7;
  --muted: #9ca8b7;
  --bg: #070b10;
  --panel: #101721;
  --panel-2: #141e2a;
  --line: #253241;
  --accent: #ef3340;
  --accent-2: #ff5964;
  --green: #38c58b;
  --amber: #f4b740;
  --red: #ff5964;
}

* { box-sizing: border-box; }
html { color-scheme: dark; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 88% 4%, rgba(239, 51, 64, .12), transparent 30rem),
    linear-gradient(180deg, #080d13 0%, var(--bg) 100%);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

a { color: inherit; }
.topbar {
  min-height: 76px;
  padding: 14px clamp(20px, 5vw, 72px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255,255,255,.08);
  background: rgba(7, 11, 16, .9);
}
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; line-height: 1; }
.brand-logo { width: 46px; height: 52px; object-fit: contain; }
.brand-copy { display: inline-flex; flex-direction: column; }
.brand-main { font-size: 25px; font-weight: 900; letter-spacing: .16em; }
.brand-sub { margin-top: 6px; color: var(--muted); font-size: 9px; letter-spacing: .17em; }
.shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: 56px 0; }
.footer { padding: 26px 20px; text-align: center; color: #718093; font-size: 12px; border-top: 1px solid rgba(255,255,255,.06); }

h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 820px; margin-bottom: 14px; font-size: clamp(34px, 5vw, 62px); line-height: 1.04; letter-spacing: -.04em; }
h2 { margin-bottom: 8px; font-size: 24px; }
h3 { margin-bottom: 8px; }
.kicker { margin-bottom: 14px; color: var(--accent-2); font-size: 12px; font-weight: 800; letter-spacing: .18em; }
.muted { color: var(--muted); }
.hero { display: flex; align-items: flex-end; justify-content: space-between; gap: 28px; margin-bottom: 32px; }
.hero p:not(.kicker) { max-width: 720px; color: var(--muted); font-size: 17px; }
.status-pill { flex: 0 0 auto; padding: 8px 13px; border: 1px solid rgba(56,197,139,.3); border-radius: 999px; color: #a5e8cd; font-size: 12px; background: rgba(56,197,139,.08); }
.status-pill span { display: inline-block; width: 7px; height: 7px; margin-right: 8px; border-radius: 50%; background: var(--green); }

.panel { border: 1px solid var(--line); border-radius: 16px; background: linear-gradient(145deg, rgba(20,30,42,.96), rgba(12,18,26,.96)); box-shadow: 0 18px 60px rgba(0,0,0,.18); }
.upload-panel { padding: clamp(24px, 4vw, 42px); }
.upload-panel form { display: grid; grid-template-columns: minmax(220px, 1fr) 220px auto; align-items: end; gap: 18px; margin-top: 28px; }
label { display: block; margin-bottom: 8px; color: #cbd4df; font-size: 13px; font-weight: 700; }
input, select {
  width: 100%; min-height: 48px; border: 1px solid #344356; border-radius: 9px; padding: 11px 13px;
  color: var(--ink); background: #0b1119; font: inherit; outline: none;
}
input:focus, select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(239,51,64,.15); }
input[type="file"] { padding: 10px; }
input[type="file"]::file-selector-button { margin-right: 10px; border: 0; border-radius: 6px; padding: 7px 10px; color: var(--ink); background: #253241; }
.button { display: inline-flex; min-height: 44px; align-items: center; justify-content: center; border: 1px solid transparent; border-radius: 9px; padding: 10px 17px; color: white; font: inherit; font-size: 14px; font-weight: 750; text-decoration: none; cursor: pointer; }
.button-primary { background: var(--accent); }
.button-primary:hover { background: var(--accent-2); }
.button-secondary { border-color: #3a485a; background: #172231; }
.button-secondary:hover { border-color: #65768a; }
.button-quiet { min-height: 36px; border-color: #303b48; color: var(--muted); background: transparent; }
.button-full { width: 100%; margin-top: 10px; }

.guidance-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 18px; }
.guidance { padding: 24px; }
.guidance p { margin-bottom: 0; color: var(--muted); font-size: 14px; }
.step { display: inline-block; margin-bottom: 22px; color: var(--accent-2); font-size: 12px; font-weight: 800; letter-spacing: .12em; }
.disclaimer { margin: 24px 2px 0; color: #8f9bad; font-size: 13px; }

.auth-layout { min-height: 560px; display: grid; grid-template-columns: 1.25fr .75fr; align-items: center; gap: clamp(40px, 8vw, 110px); }
.auth-copy p:not(.kicker) { max-width: 670px; color: var(--muted); font-size: 17px; }
.auth-logo { width: 92px; height: 105px; margin-bottom: 24px; object-fit: contain; }
.feature-list { margin: 28px 0 0; padding: 0; list-style: none; color: #c6d0dc; }
.feature-list li { margin: 12px 0; }
.feature-list li::before { content: "✓"; margin-right: 10px; color: var(--green); font-weight: 900; }
.auth-panel { padding: 34px; }
.auth-panel label { margin-top: 18px; }
.notice { margin-bottom: 24px; border: 1px solid; border-radius: 9px; padding: 13px 16px; }
.notice-error { border-color: rgba(255,89,100,.42); color: #ffc1c6; background: rgba(255,89,100,.1); }

.result-hero h1 { font-size: clamp(28px, 4vw, 46px); overflow-wrap: anywhere; }
.score-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 18px; }
.score-card { padding: 24px; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); }
.score-card span, .score-card small { display: block; color: var(--muted); }
.score-card strong { display: block; margin: 10px 0 4px; font-size: 34px; line-height: 1; }
.score-main { border-color: rgba(239,51,64,.45); background: linear-gradient(145deg, rgba(239,51,64,.12), var(--panel)); }
.risk-critical, .risk-high { color: var(--red); }
.risk-medium { color: var(--amber); }
.risk-low { color: var(--green); }
.downloads { display: flex; align-items: center; justify-content: space-between; gap: 22px; margin-bottom: 18px; padding: 24px; }
.downloads p { margin-bottom: 0; }
.download-actions { display: flex; flex-wrap: wrap; gap: 9px; }
.section-heading { padding: 26px 28px 12px; }
.result-list { padding: 10px 18px 22px; }
.result-item { margin: 8px 0; border: 1px solid var(--line); border-left: 3px solid; border-radius: 10px; overflow: hidden; background: #0b1119; }
.result-item.passed { border-left-color: var(--green); }
.result-item.failed { border-left-color: var(--red); }
.result-item summary { display: grid; grid-template-columns: 84px 70px 1fr 90px; gap: 12px; align-items: center; padding: 15px 16px; cursor: pointer; }
.status, .severity { font-size: 11px; font-weight: 850; text-transform: uppercase; letter-spacing: .04em; }
.failed .status, .severity-critical, .severity-high { color: var(--red); }
.passed .status, .severity-low { color: var(--green); }
.severity-medium { color: var(--amber); }
.rule-id { color: #8f9bad; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.rule-title { font-weight: 700; }
.result-detail { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; padding: 20px; border-top: 1px solid var(--line); background: var(--panel-2); }
.result-detail strong { display: block; margin-bottom: 4px; color: #8f9bad; font-size: 11px; text-transform: uppercase; letter-spacing: .07em; }
.result-detail p { margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.result-detail .wide { grid-column: 1 / -1; }
.error-page { padding: 60px; text-align: center; }
.error-code { color: var(--accent); font-size: 72px; font-weight: 900; }
.error-page h1 { margin: 0 auto 30px; font-size: 28px; }

@media (max-width: 900px) {
  .upload-panel form { grid-template-columns: 1fr; }
  .guidance-grid, .score-grid { grid-template-columns: repeat(2, 1fr); }
  .auth-layout { grid-template-columns: 1fr; }
  .auth-copy { padding-top: 20px; }
  .downloads, .hero { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 620px) {
  .shell { width: min(100% - 28px, 1180px); padding: 34px 0; }
  .topbar { padding: 12px 16px; }
  .brand-logo { width: 40px; height: 46px; }
  .brand-main { font-size: 20px; }
  .brand-sub { font-size: 7px; }
  .guidance-grid, .score-grid, .result-detail { grid-template-columns: 1fr; }
  .result-item summary { grid-template-columns: 70px 1fr; }
  .rule-title { grid-column: 1 / -1; }
  .severity { text-align: right; }
  .result-detail .wide { grid-column: auto; }
  .auth-panel { padding: 24px; }
}