:root {
  --bg: #09090b;
  --panel: #18181b;
  --panel-strong: #27272a;
  --border: rgba(255, 255, 255, 0.08);
  --text: #f4f4f5;
  --text-soft: #a1a1aa;
  --brand: #8865ff;
  --brand-strong: #6d49ff;
  --brand-soft: rgba(136, 101, 255, 0.12);
  --danger: #ef4444;
  --warn: #f59e0b;
  --good: #10b981;
  --info: #3b82f6;
  --font-body: 'IBM Plex Sans', -apple-system, sans-serif;
  --font-logo: 'Orbitron', sans-serif;
}

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

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  background-image: radial-gradient(circle at 15% 50%, rgba(136, 101, 255, 0.04), transparent 25%),
                    radial-gradient(circle at 85% 30%, rgba(136, 101, 255, 0.04), transparent 25%);
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 20px 0;
  background: rgba(9, 9, 11, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

.nav-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-logo {
  display: flex;
  align-items: baseline;
  letter-spacing: -0.05em;
  font-size: 28px;
}
.logo-main {
  font-family: var(--font-logo);
  font-weight: 800;
  letter-spacing: -1px;
  background: linear-gradient(135deg, #ffffff 0%, #a1a1aa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-transform: uppercase;
}
.logo-tld {
  font-family: ui-monospace, "SF Mono", "Cascadia Code", monospace;
  font-size: 14px;
  font-weight: 800;
  color: var(--danger);
  margin-left: 2px;
}
.brand-author {
  margin: 4px 0 0 2px;
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--brand);
  font-weight: 700;
  opacity: 0.8;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 12px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
  font-size: 14px;
  font-family: var(--font-body);
}

.btn-large {
  padding: 14px 28px;
  font-size: 16px;
  border-radius: 16px;
}

.btn-primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 4px 16px rgba(136, 101, 255, 0.4);
  border: 1px solid rgba(136, 101, 255, 0.6);
}

.btn-primary:hover {
  background: var(--brand-strong);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(136, 101, 255, 0.6);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.hero {
  padding: 160px 24px 80px;
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.pill-badge {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand);
  border: 1px solid rgba(136, 101, 255, 0.4);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-soft);
  margin-bottom: 40px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 16px;
}

/* Mockup */
.mockup-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 24px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.05);
  transform: rotateY(-5deg) rotateX(5deg);
  transform-style: preserve-3d;
  transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.mockup-card:hover {
  transform: rotateY(0deg) rotateX(0deg) translateY(-10px);
}

.mockup-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
}

.status-pill {
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid;
}

.tone-good { background: rgba(16, 185, 129, 0.15); color: var(--good); border-color: rgba(16, 185, 129, 0.4); }

.mockup-item {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  margin-bottom: 16px;
}

.mockup-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--danger);
  margin-bottom: 4px;
  font-weight: 700;
}

.mockup-filename {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}

.mockup-chips { display: flex; gap: 8px; }
.chip { padding: 4px 8px; border-radius: 999px; font-size: 11px; border: 1px solid var(--border); }
.chip-danger { background: rgba(239, 68, 68, 0.1); color: var(--danger); }
.chip-neutral { background: rgba(255, 255, 255, 0.05); color: var(--text-soft); }

.mockup-stats {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  margin-bottom: 16px;
}

.stat-engine {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  text-align: center;
  font-size: 11px;
  color: var(--text-soft);
}

.stat-num {
  display: block;
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 4px;
}

.text-danger { color: var(--danger); }
.text-warn { color: var(--warn); }
.text-good { color: var(--good); }

.mockup-btn {
  width: 100%;
  padding: 12px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 14px;
  border: none;
  cursor: default;
}
.btn-danger {
  background: var(--danger);
  color: #fff;
}

.features {
  padding: 100px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.section-head {
  text-align: center;
  margin-bottom: 60px;
}

.section-head h2 {
  font-size: 40px;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-head p {
  font-size: 18px;
  color: var(--text-soft);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 32px;
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), border-color 0.4s ease, box-shadow 0.4s ease;
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.feature-card::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle at top right, rgba(255,255,255,0.06), transparent 60%);
  opacity: 0;
  transition: opacity 0.4s ease;
  z-index: -1;
  pointer-events: none;
}

.feature-card:hover {
  transform: translateY(-8px) scale(1.02);
  border-color: rgba(136, 101, 255, 0.4);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.5), 0 0 24px rgba(136, 101, 255, 0.15);
  z-index: 10;
}

.feature-card:hover::after {
  opacity: 1;
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), background 0.4s ease;
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
  transform: translateY(-6px) scale(1.15);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 16px rgba(0,0,0,0.3);
}

.feature-card:hover .feature-icon svg {
  animation: svgPulseFloat 1.5s ease-in-out infinite alternate;
}

@keyframes svgPulseFloat {
  0% { transform: scale(1) translateY(0); }
  100% { transform: scale(1.1) translateY(-3px); filter: drop-shadow(0 0 6px currentColor); }
}

.feature-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.feature-card p {
  color: var(--text-soft);
  font-size: 15px;
}

.cta {
  padding: 80px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.cta-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 32px;
  padding: 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--brand), transparent);
}

.cta-card h2 {
  font-size: 36px;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.cta-card p {
  color: var(--text-soft);
  font-size: 18px;
  max-width: 500px;
  margin: 0 auto 32px;
}

footer {
  border-top: 1px solid var(--border);
  padding: 40px 24px;
  text-align: center;
  margin-top: 40px;
}

/* Animations */
.observe-fade {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.observe-fade.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 120px;
    gap: 40px;
    box-sizing: border-box;
  }
  .hero-subtitle { margin: 0 auto 40px; }
  .hero-actions { align-items: center; flex-direction: column; width: 100%; }
  .feature-grid { grid-template-columns: 1fr; }
  .mockup-card { transform: none !important; margin: 0 auto; max-width: 400px; width: 100%; box-sizing: border-box; }
}

@media (max-width: 600px) {
  .navbar { padding: 12px 16px; }
  .nav-content { flex-direction: row; justify-content: space-between; align-items: center; padding: 0; width: 100%; box-sizing: border-box; }
  .brand-logo { font-size: 16px; }
  .logo-tld { font-size: 10px; margin-left: 1px; }
  .navbar .btn { padding: 8px 12px; font-size: 11px; white-space: nowrap; flex-shrink: 0; }
  
  .hero { padding: 120px 16px 60px; box-sizing: border-box; width: 100%; overflow: hidden; }
  .hero-title { font-size: 36px; }
  .hero-subtitle { font-size: 16px; }
  .hero-actions { width: 100%; padding: 0 12px; box-sizing: border-box; }
  .btn-large { width: 100%; justify-content: center; }
  
  .mockup-card { padding: 16px; width: 100%; box-sizing: border-box; }
  .mockup-stats { grid-template-columns: 1fr; }
  
  .features { padding: 60px 16px; }
  .section-head h2 { font-size: 32px; }
  .section-head p { font-size: 16px; }
  
  .sim-stage { overflow-x: auto; padding: 0 10px; }
  .sim-arena { transform: scale(0.85); transform-origin: top center; }
  
  .pitch-banner { padding: 60px 16px; }
  .pitch-banner h2 { font-size: 32px !important; }
  .pitch-banner p { font-size: 16px !important; }
  .pitch-banner .btn-large { width: 100%; padding: 16px !important; font-size: 16px !important; }
  
  .dev-card { flex-direction: column; text-align: center !important; padding: 24px; }
  .dev-card img { width: 100px !important; height: 100px !important; }
  .dev-card div { align-items: center; display: flex; flex-direction: column; }
  .dev-card .btn { width: 100%; justify-content: center; }
}

/* Animation Stage */
.sim-stage {
  max-width: 600px;
  margin: 40px auto 0;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(0,0,0,0.5);
}

.sim-header {
  background: rgba(255,255,255,0.02);
  padding: 12px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.sim-title {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--danger);
  transition: color 0.3s ease;
}

.sim-arena {
  padding: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  position: relative;
  background: radial-gradient(circle at center, rgba(136, 101, 255, 0.05), transparent 70%);
}

.sim-browser {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 200px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.sim-browser-head {
  padding: 8px;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 6px;
}

.sim-dot {
  width: 8px; height: 8px; border-radius: 50%;
}
.bg-danger { background: #ef4444; }
.bg-warn { background: #f59e0b; }
.bg-good { background: #10b981; }

.sim-browser-body {
  padding: 24px;
  position: relative;
  display: flex;
  justify-content: center;
}

.sim-btn {
  padding: 8px 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 12px;
  color: var(--text-soft);
  transition: background 0.2s ease;
}

.sim-cursor {
  position: absolute;
  top: 50px;
  left: 120px;
  transition: transform 0.5s ease-out;
  z-index: 10;
}

.sim-transit {
  position: relative;
  height: 80px;
  width: 200px;
  display: flex;
  justify-content: center;
}

.sim-path-line {
  position: absolute;
  top: 0; left: 50%;
  width: 2px;
  height: 100%;
  background: dashed 1px var(--border);
  transform: translateX(-50%);
}

.sim-payload {
  position: absolute;
  top: -20px;
  width: 32px;
  height: 32px;
  color: var(--danger);
  opacity: 0;
  transition: opacity 0.2s ease;
  z-index: 2;
}

.sim-shield {
  position: absolute;
  top: 24px;
  width: 48px;
  height: 48px;
  opacity: 0;
  transform: scale(0.5);
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  z-index: 3;
}

.sim-os {
  width: 200px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
  color: var(--text-soft);
  transition: all 0.3s ease;
}

/* Animations */
.animate-cursor-click .sim-cursor {
  transform: translate(-30px, -20px);
}
.animate-btn-active .sim-btn {
  background: var(--danger);
  color: white;
}
.animate-payload-drop .sim-payload {
  opacity: 1;
  animation: dropPayload 1.5s linear forwards;
}

@keyframes dropPayload {
  0% { top: -20px; opacity: 1; }
  100% { top: 100px; opacity: 1; }
}

.animate-infection .sim-os {
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--danger);
  color: var(--danger);
}

/* Protected Animations */
.animate-shield-up .sim-shield {
  opacity: 1;
  transform: scale(1);
}

.animate-payload-smash .sim-payload {
  opacity: 1;
  animation: smashPayload 1s linear forwards;
}

@keyframes smashPayload {
  0% { top: -20px; opacity: 1; transform: scale(1); }
  45% { top: 20px; opacity: 1; transform: scale(1); }
  55% { top: 30px; opacity: 0; transform: scale(3) rotate(45deg); filter: blur(5px); }
  100% { top: 40px; opacity: 0; }
}

.animate-protected .sim-os {
  background: rgba(16, 185, 129, 0.1);
  border-color: var(--good);
  color: var(--good);
}