:root {
  --bg: #090a0f;
  --bg-elevated: #11131a;
  --card: #151822;
  --card-hover: #1b1f2d;
  --border: rgba(255, 255, 255, 0.09);
  --border-hover: rgba(56, 189, 248, 0.45);
  --fg: #f8fafc;
  --muted: #94a3b8;
  --muted-light: #e2e8f0;
  --accent: #38bdf8;
  --accent-glow: rgba(56, 189, 248, 0.12);
  --accent-soft: rgba(56, 189, 248, 0.08);
  --success: #34d399;
  --success-glow: rgba(52, 211, 153, 0.2);
  --line: rgba(255, 255, 255, 0.08);
  --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.6);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f8fafc;
    --bg-elevated: #ffffff;
    --card: #ffffff;
    --card-hover: #f1f5f9;
    --border: #e2e8f0;
    --border-hover: rgba(2, 132, 199, 0.45);
    --fg: #0f172a;
    --muted: #475569;
    --muted-light: #1e293b;
    --accent: #0284c7;
    --accent-glow: rgba(2, 132, 199, 0.12);
    --accent-soft: rgba(2, 132, 199, 0.06);
    --success: #059669;
    --success-glow: rgba(5, 150, 105, 0.2);
    --line: #e2e8f0;
    --shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.08);
  }
}

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

body {
  background: var(--bg);
  background-image: radial-gradient(ellipse 70% 380px at 50% 0%, var(--accent-glow) 0%, transparent 80%);
  background-repeat: no-repeat;
  color: var(--fg);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  max-width: 66rem;
  margin: 0 auto;
  padding: 4rem 1.5rem 2rem;
}

/* Status indicator badge */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.95rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 9999px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--muted);
  margin-bottom: 1.6rem;
  letter-spacing: 0.01em;
  max-width: 100%;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 0 var(--success-glow);
  animation: pulse 2.2s infinite ease-in-out;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 var(--success); }
  70% { box-shadow: 0 0 0 9px rgba(52, 211, 153, 0); }
  100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

/* Hero Typography */
.hero {
  margin-bottom: 3.5rem;
}

h1 {
  font-size: clamp(2.4rem, 6.5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.035em;
  color: var(--fg);
  margin-bottom: 0.4rem;
}

.hero .role {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: -0.01em;
  margin-bottom: 0.85rem;
}

.lead {
  font-size: 1.25rem;
  line-height: 1.5;
  color: var(--muted-light);
}

/* Rotating Lead Taglines (Pure CSS) */
.lead-rotator {
  display: grid;
  grid-template-columns: 1fr;
  max-width: 48rem;
  margin-bottom: 1.6rem;
  min-height: 3.8rem;
}

.lead-item {
  grid-area: 1 / 1;
  font-size: 1.25rem;
  line-height: 1.5;
  color: var(--muted-light);
  opacity: 0;
  transform: translateY(4px);
  animation: cycleLead 18s infinite ease-in-out;
  pointer-events: none;
}

.lead-item:nth-child(1) {
  animation-delay: 0s;
}

.lead-item:nth-child(2) {
  animation-delay: -12s;
}

.lead-item:nth-child(3) {
  animation-delay: -6s;
}

@keyframes cycleLead {
  0% {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  28% {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  33.33% {
    opacity: 0;
    transform: translateY(-4px);
    pointer-events: none;
  }
  94.5% {
    opacity: 0;
    transform: translateY(4px);
    pointer-events: none;
  }
  100% {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .lead-item {
    animation: none;
    opacity: 0;
    transform: none;
  }
  .lead-item:first-child {
    opacity: 1;
  }
}

/* Executive Credibility Grid */
.proof-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
  margin: 1.75rem 0 2rem;
}

@media (min-width: 820px) {
  .proof-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.proof-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.1rem;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.proof-item:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.proof-num {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.02em;
  display: block;
}

.proof-label {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.35;
  margin-top: 0.3rem;
  flex-grow: 1;
}

/* CTAs / Action bar */
.cta-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.65rem 1.25rem;
  border-radius: 9px;
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
  line-height: 1.2;
}

.btn-primary {
  background: var(--accent);
  color: #0b0c10;
  border: 1px solid var(--accent);
  box-shadow: 0 2px 10px var(--accent-glow);
}

.btn-primary:hover {
  background: #7dd3fc;
  border-color: #7dd3fc;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--accent-glow);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--fg);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--card-hover);
  border-color: var(--border-hover);
  color: var(--accent);
  transform: translateY(-1px);
}

/* Section Headers */
h2 {
  font-size: 0.92rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--muted);
  margin: 4.5rem 0 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

h2::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.section-lead {
  font-size: 0.95rem;
  color: var(--muted);
  margin-bottom: 1.6rem;
}

/* Featured Systems Grid */
.featured {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 28rem), 1fr));
  gap: 1.6rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: var(--border-hover);
  box-shadow: 0 16px 36px -12px rgba(0, 0, 0, 0.75);
}

.card a {
  display: flex;
  flex-direction: column;
  height: 100%;
  color: inherit;
  text-decoration: none;
}

.card a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: -3px;
  border-radius: 14px;
}

.card-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1200 / 630;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}

.card img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.card:hover img {
  transform: scale(1.025);
}

.card-content {
  padding: 1.35rem 1.4rem 1.4rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-tag {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--accent-glow);
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  margin-bottom: 0.65rem;
}

.card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 0.45rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card h3 .arrow {
  color: var(--accent);
  font-size: 1.1rem;
  transition: transform 0.2s ease;
}

.card:hover h3 .arrow {
  transform: translate(2px, -2px);
}

.card p {
  font-size: 0.94rem;
  line-height: 1.55;
  color: var(--muted);
}

/* Ventures Showcase Grid */
.ventures-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 20rem), 1fr));
  gap: 1.25rem;
  margin-top: 1rem;
}

.venture-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.venture-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-hover);
}

.venture-card.highlight {
  border-color: rgba(56, 189, 248, 0.35);
  background: linear-gradient(180deg, var(--accent-soft) 0%, var(--bg-elevated) 100%);
}

.venture-card .tag {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent);
  margin-bottom: 0.45rem;
}

.venture-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.venture-card p {
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--muted);
  flex-grow: 1;
}

.venture-card .stage {
  margin-top: 0.85rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--success);
}

/* Ecosystem / Lab Projects List */
.compact-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 30rem), 1fr));
  gap: 0.65rem;
  margin-top: 1.25rem;
}

.compact-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.85rem 1.1rem;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: all 0.2s ease;
}

.compact-item:hover {
  border-color: var(--border-hover);
  transform: translateX(2px);
  background: var(--card-hover);
}

.compact-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent);
  display: inline-block;
  margin-right: 0.45rem;
}

.compact-desc {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.45;
}

/* Freelancer Closer Card */
.closer {
  margin-top: 4.5rem;
  padding: 2.5rem 2.2rem;
  background: linear-gradient(135deg, var(--card) 0%, var(--bg-elevated) 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
  position: relative;
  overflow: hidden;
}

.closer::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.closer h2 {
  font-size: 1.15rem;
  border-top: none;
  margin: 0 0 0.6rem;
  padding: 0;
  color: var(--fg);
  text-transform: none;
  letter-spacing: -0.01em;
}

.closer h2::before {
  display: none;
}

.closer-lead {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 0.45rem;
  line-height: 1.45;
}

.closer-text {
  font-size: 0.92rem;
  color: var(--muted);
  max-width: 44rem;
  margin-bottom: 1.6rem;
  line-height: 1.55;
}

.closer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Footer */
footer {
  max-width: 66rem;
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
  color: var(--muted);
  font-size: 0.86rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  border-top: 1px solid var(--line);
}

footer a {
  color: var(--muted);
  text-decoration: none;
}

footer a:hover {
  color: var(--accent);
}

/* Mobile Responsiveness */
@media (max-width: 580px) {
  main {
    padding: 2.75rem 1rem 1.5rem;
  }
  .status-badge {
    font-size: 0.76rem;
    padding: 0.35rem 0.75rem;
    width: 100%;
  }
  .proof-grid {
    grid-template-columns: 1fr;
  }
  .cta-bar {
    flex-direction: column;
    align-items: stretch;
  }
  .btn {
    justify-content: center;
  }
  .closer {
    padding: 1.75rem 1.25rem;
  }
  .closer-actions {
    flex-direction: column;
    align-items: stretch;
  }
}