@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --ink: #090D13;
  --panel: #10161F;
  --panel-raised: #141B26;
  --line: #1E2733;
  --signal: #3DDC97;
  --signal-dim: #1F5A44;
  --alert: #FF6B4A;
  --alert-dim: #6B3324;
  --warn: #F5B942;
  --paper: #E8ECEF;
  --dim: #7C8A9A;
  --faint: #4A5764;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  min-height: 100vh;
  position: relative;
}

/* faint grid texture, network-topology flavored */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.12;
  pointer-events: none;
  z-index: 0;
}

a { color: inherit; }

.wrap {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------------- top bar ---------------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.01em;
}

.brand .dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 10px var(--signal);
}

.brand .sub {
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  margin-left: 6px;
}

.topbar-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--faint);
}

/* ---------------- beta banner ---------------- */
.beta-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
  padding: 12px 16px;
  background: rgba(245, 185, 66, 0.08);
  border: 1px solid #6B5324;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--dim);
  line-height: 1.5;
}

.beta-tag {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--warn);
  background: rgba(245, 185, 66, 0.15);
  border: 1px solid #6B5324;
  border-radius: 4px;
  padding: 3px 8px;
}

/* ---------------- hero / upload ---------------- */
.hero {
  padding: 88px 0 64px;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--signal);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--signal);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(34px, 5vw, 54px);
  line-height: 1.08;
  font-weight: 600;
  margin: 0 0 20px;
  max-width: 780px;
  letter-spacing: -0.01em;
}

.hero h1 em {
  font-style: normal;
  color: var(--signal);
}

.hero p.lede {
  color: var(--dim);
  font-size: 16.5px;
  line-height: 1.6;
  max-width: 560px;
  margin: 0 0 44px;
}

/* drop zone: terminal-styled ingestion point */
.dropzone {
  position: relative;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel) 0%, var(--ink) 100%);
  border-radius: 10px;
  padding: 0;
  overflow: hidden;
  max-width: 720px;
}

.dz-titlebar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--faint);
}

.dz-titlebar .tl-dot { width: 8px; height: 8px; border-radius: 50%; }
.tl-dot.r { background: #FF6B4A; }
.tl-dot.y { background: #F5B942; }
.tl-dot.g { background: #3DDC97; }
.dz-titlebar .path { margin-left: 8px; }

.dz-body {
  padding: 40px 32px 36px;
  text-align: center;
  cursor: pointer;
  transition: background 0.15s ease;
}

.dz-body.drag-over {
  background: rgba(61, 220, 151, 0.06);
}

.dz-icon {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--signal);
  margin-bottom: 18px;
  min-height: 18px;
}

.dz-icon .cursor {
  display: inline-block;
  width: 8px;
  height: 14px;
  background: var(--signal);
  margin-left: 2px;
  animation: blink 1.1s steps(1) infinite;
  vertical-align: -2px;
}

@keyframes blink { 50% { opacity: 0; } }

.dz-body h3 {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 600;
  margin: 0 0 8px;
}

.dz-body p {
  color: var(--dim);
  font-size: 13.5px;
  margin: 0 0 22px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--signal);
  color: #06110C;
  border: none;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  padding: 12px 22px;
  border-radius: 7px;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.btn:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(61, 220, 151, 0.25); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; box-shadow: none; }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--paper);
}
.btn-ghost:hover { border-color: var(--signal); box-shadow: none; }

.dz-hint {
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--faint);
}

.file-chip {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--panel-raised);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--paper);
  margin-bottom: 18px;
}

.file-chip .x {
  color: var(--faint);
  cursor: pointer;
}

.error-banner {
  max-width: 720px;
  margin-top: 16px;
  border: 1px solid var(--alert-dim);
  background: rgba(255, 107, 74, 0.08);
  color: #FFB6A3;
  font-family: var(--font-mono);
  font-size: 12.5px;
  padding: 12px 16px;
  border-radius: 7px;
  display: none;
}

/* trust strip */
.trust {
  display: flex;
  gap: 36px;
  margin-top: 56px;
  flex-wrap: wrap;
}
.trust-item {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--faint);
}
.trust-item strong {
  color: var(--paper);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 13px;
}

/* ---------------- loading state ---------------- */
.loading-panel {
  display: none;
  max-width: 720px;
  padding: 40px 0;
}
.loading-panel .bar-track {
  height: 3px;
  background: var(--line);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 14px;
}
.loading-panel .bar-fill {
  height: 100%;
  width: 30%;
  background: var(--signal);
  animation: scan 1.2s ease-in-out infinite;
}
@keyframes scan {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(340%); }
}
.loading-panel p {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--dim);
}

/* ---------------- footer ---------------- */
.footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 60px;
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 11.5px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

/* ================= DASHBOARD ================= */

.dash { display: none; }

.dash-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 40px 0 28px;
  flex-wrap: wrap;
  gap: 20px;
}

.dash-header h2 {
  font-family: var(--font-display);
  font-size: 26px;
  margin: 0 0 6px;
}

.dash-header .filename {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--dim);
}

/* risk gauge - signature element */
.risk-panel {
  display: flex;
  align-items: center;
  gap: 28px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 26px 32px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.gauge-wrap { position: relative; width: 132px; height: 132px; flex-shrink: 0; }
.gauge-wrap svg { transform: rotate(-90deg); }
.gauge-bg { fill: none; stroke: var(--line); stroke-width: 10; }
.gauge-fill {
  fill: none;
  stroke-width: 10;
  stroke-linecap: round;
  transition: stroke-dashoffset 1.1s cubic-bezier(.4,0,.2,1), stroke 0.3s ease;
}
.gauge-center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.gauge-center .score {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
}
.gauge-center .max { font-family: var(--font-mono); font-size: 11px; color: var(--faint); margin-top: 2px; }

.risk-info { flex: 1; min-width: 240px; }
.risk-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 5px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.risk-badge.LOW { background: rgba(61,220,151,0.12); color: var(--signal); border: 1px solid var(--signal-dim); }
.risk-badge.MEDIUM { background: rgba(245,185,66,0.12); color: var(--warn); border: 1px solid #6B5324; }
.risk-badge.HIGH { background: rgba(255,107,74,0.12); color: var(--alert); border: 1px solid var(--alert-dim); }

.risk-info p { color: var(--dim); font-size: 14px; line-height: 1.6; margin: 0; max-width: 620px; }

/* stat cards */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}
.stat-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px 20px;
}
.stat-card .label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--faint);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 10px;
}
.stat-card .value {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 600;
}
.stat-card .value.signal { color: var(--signal); }
.stat-card .value.alert { color: var(--alert); }

/* chart panels */
.chart-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
@media (max-width: 860px) { .chart-grid { grid-template-columns: 1fr; } }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 22px 24px;
}
.panel h3 {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 4px;
}
.panel .panel-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--faint);
  margin-bottom: 18px;
}
.panel canvas { max-height: 260px; }

/* findings/recs list */
.list-panel { margin-bottom: 16px; }
.list-row {
  display: flex;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
  line-height: 1.5;
}
.list-row:last-child { border-bottom: none; }
.list-row .bar { width: 3px; border-radius: 2px; flex-shrink: 0; align-self: stretch; }
.list-row.finding .bar { background: var(--alert); }
.list-row.rec .bar { background: var(--signal); }
.list-row .n {
  font-family: var(--font-mono);
  color: var(--faint);
  font-size: 12px;
  flex-shrink: 0;
  width: 20px;
}

/* feature detection grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
}
.feature-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--panel-raised);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 13px;
}
.feature-item .fstat {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 12px;
  text-transform: uppercase;
}
.fstat.on { background: rgba(61,220,151,0.12); color: var(--signal); }
.fstat.off { background: rgba(124,138,154,0.12); color: var(--faint); }

.section-title {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 34px 0 12px;
}

.reset-row {
  display: flex;
  justify-content: flex-end;
  padding: 24px 0 60px;
}