:root {
  --bg: #07090f;
  --surface: #0e1117;
  --surface-2: #141920;
  --border: #1a2230;
  --fg: #e8edf5;
  --fg-2: #8896aa;
  --fg-3: #4a5568;
  --accent: #00d4ff;
  --accent-dim: rgba(0, 212, 255, 0.12);
  --red: #ff4d6a;
  --red-dim: rgba(255, 77, 106, 0.15);
  --yellow: #ffd166;
  --yellow-dim: rgba(255, 209, 102, 0.15);
  --green: #4ade80;
  --green-dim: rgba(74, 222, 128, 0.15);
  --font-head: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* NAVBAR */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 48px;
  border-bottom: 1px solid var(--border);
}

.nav-brand { display: flex; align-items: center; gap: 8px; }
.brand-mark { font-size: 20px; color: var(--accent); }
.brand-name { font-family: var(--font-head); font-weight: 700; font-size: 18px; letter-spacing: -0.02em; }

.nav-status { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--fg-2); }
.status-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }
.status-label { font-family: var(--font-head); font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; }

/* SECTION COMMON */
.section-inner { max-width: 1160px; margin: 0 auto; padding: 0 48px; }
.section-label {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(0, 212, 255, 0.2);
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 20px;
}
.section-title {
  font-family: var(--font-head);
  font-size: clamp(26px, 3.5vw, 40px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.section-body { color: var(--fg-2); font-size: 16px; line-height: 1.7; max-width: 560px; }

/* HERO */
.hero { padding: 80px 0 96px; border-bottom: 1px solid var(--border); }
.hero-inner { max-width: 1160px; margin: 0 auto; padding: 0 48px; display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.hero-eyebrow { margin-bottom: 24px; }
.eyebrow-tag {
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(0, 212, 255, 0.2);
  padding: 5px 12px;
  border-radius: 20px;
}
.hero-headline {
  font-family: var(--font-head);
  font-size: clamp(36px, 4.5vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.04em;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #e8edf5 0%, #8896aa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-lede { color: var(--fg-2); font-size: 17px; line-height: 1.75; margin-bottom: 40px; max-width: 480px; }
.hero-stats { display: flex; align-items: center; gap: 24px; }
.stat { display: flex; flex-direction: column; }
.stat-value { font-family: var(--font-head); font-size: 20px; font-weight: 700; color: var(--accent); }
.stat-label { font-size: 12px; color: var(--fg-3); text-transform: uppercase; letter-spacing: 0.06em; }
.stat-divider { width: 1px; height: 36px; background: var(--border); }

.hero-image-wrap { position: relative; }
.hero-img { width: 100%; border-radius: 12px; border: 1px solid var(--border); display: block; }
.hero-img-overlay {
  position: absolute;
  bottom: 16px;
  left: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.pipeline-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(7, 9, 15, 0.85);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 12px;
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 600;
  backdrop-filter: blur(8px);
}
.badge-dot { width: 6px; height: 6px; border-radius: 50%; }
.badge-green { background: var(--green); }
.badge-yellow { background: var(--yellow); }

/* PIPELINE SECTION */
.pipeline { padding: 96px 0; border-bottom: 1px solid var(--border); background: linear-gradient(180deg, var(--bg) 0%, var(--surface) 100%); }
.pipeline .section-header { text-align: center; margin-bottom: 64px; }
.pipeline .section-body { margin: 0 auto; }
.pipeline-diagram { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; gap: 0; align-items: start; margin-bottom: 48px; }
.pipe-stage { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 24px 20px; text-align: center; }
.pipe-stage .stage-icon {
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
  padding: 6px 10px;
  border-radius: 6px;
  display: inline-block;
  margin-bottom: 10px;
}
.stt-icon { background: rgba(0, 212, 255, 0.15); color: var(--accent); }
.llm-icon { background: var(--red-dim); color: var(--red); }
.rag-icon { background: var(--yellow-dim); color: var(--yellow); }
.tts-icon { background: var(--green-dim); color: var(--green); }
.stage-name { font-family: var(--font-head); font-size: 13px; font-weight: 600; margin-bottom: 12px; color: var(--fg); }
.stage-failures { display: flex; flex-direction: column; gap: 6px; }
.failure-chip {
  font-size: 11px;
  color: var(--fg-3);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 8px;
}
.failure-chip.failure-red { color: var(--red); border-color: rgba(255, 77, 106, 0.3); background: var(--red-dim); }
.failure-chip.failure-yellow { color: var(--yellow); border-color: rgba(255, 209, 102, 0.3); background: var(--yellow-dim); }
.failure-chip.failure-accent { color: var(--accent); border-color: rgba(0, 212, 255, 0.3); background: var(--accent-dim); }
.pipe-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--fg-3);
  padding-top: 44px;
}
.pipeline-takeaway { text-align: center; }
.pipeline-takeaway p { font-family: var(--font-head); font-size: 15px; color: var(--fg-2); }

/* DETECTION SECTION */
.detection { padding: 96px 0; border-bottom: 1px solid var(--border); }
.detection-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.detection-img { width: 100%; border-radius: 12px; border: 1px solid var(--border); display: block; }
.feature-list { list-style: none; margin-top: 28px; display: flex; flex-direction: column; gap: 14px; }
.feature-list li { display: flex; align-items: flex-start; gap: 12px; font-size: 15px; color: var(--fg-2); }
.feature-icon { color: var(--accent); font-size: 14px; flex-shrink: 0; margin-top: 2px; }

/* REMEDIATION SECTION */
.remediation { padding: 96px 0; border-bottom: 1px solid var(--border); background: var(--surface); }
.remediation-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-bottom: 48px; }
.rem-card { padding: 28px 24px; background: var(--bg); border: 1px solid var(--border); border-radius: 12px; }
.rem-number { font-family: var(--font-head); font-size: 11px; font-weight: 700; color: var(--accent); letter-spacing: 0.1em; margin-bottom: 16px; }
.rem-card h3 { font-family: var(--font-head); font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.rem-card p { font-size: 14px; color: var(--fg-2); line-height: 1.6; }
.remediation-tagline { text-align: center; }
.remediation-tagline p { font-family: var(--font-head); font-size: 22px; font-weight: 700; color: var(--fg-2); }
.remediation-tagline strong { color: var(--accent); }

/* METRICS SECTION */
.metrics { padding: 96px 0; border-bottom: 1px solid var(--border); }
.metrics-header { text-align: center; margin-bottom: 56px; }
.metrics-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.metric-card { padding: 28px 24px; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; }
.metric-label { font-family: var(--font-head); font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-3); margin-bottom: 12px; }
.metric-value { font-family: var(--font-head); font-size: 36px; font-weight: 800; color: var(--accent); letter-spacing: -0.03em; margin-bottom: 4px; }
.metric-sub { font-size: 13px; color: var(--fg-3); }

/* CLOSING */
.closing { padding: 96px 0; }
.closing-inner { max-width: 700px; margin: 0 auto; text-align: center; }
.closing-headline {
  font-family: var(--font-head);
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 20px;
}
.closing-body { color: var(--fg-2); font-size: 17px; line-height: 1.75; margin-bottom: 32px; }
.closing-statement {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px 32px;
}
.closing-statement p { font-size: 16px; color: var(--fg-2); line-height: 1.6; }
.closing-statement strong { color: var(--accent); }

/* FOOTER */
.footer { padding: 40px 0; border-top: 1px solid var(--border); }
.footer-inner { max-width: 1160px; margin: 0 auto; padding: 0 48px; display: flex; flex-direction: column; align-items: center; gap: 8px; }
.footer-brand { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; }
.footer-tagline { font-size: 14px; color: var(--fg-3); }
.footer-copy { font-size: 12px; color: var(--fg-3); }

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero-inner, .detection-inner { grid-template-columns: 1fr; }
  .pipeline-diagram { grid-template-columns: 1fr 1fr; gap: 16px; }
  .pipe-arrow { display: none; }
  .remediation-grid { grid-template-columns: 1fr 1fr; }
  .metrics-grid { grid-template-columns: 1fr 1fr; }
  .navbar, .section-inner, .footer-inner { padding-left: 24px; padding-right: 24px; }
  .hero-inner { padding-left: 24px; padding-right: 24px; }
  .hero, .pipeline, .detection, .remediation, .metrics, .closing { padding: 64px 0; }
  .section-title { font-size: 28px; }
}
@media (max-width: 600px) {
  .pipeline-diagram { grid-template-columns: 1fr; }
  .remediation-grid { grid-template-columns: 1fr; }
  .metrics-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats { flex-wrap: wrap; gap: 16px; }
}