/* Program Productions — AI Systems commercial site */

:root {
  --bg-deep: #06060b;
  --bg-card: #0e0e16;
  --bg-elevated: #14141f;
  --border: rgba(155, 109, 255, 0.18);
  --text: #e8e6f0;
  --text-muted: #9490a8;
  --accent: #9b6dff;
  --accent-dim: #7c5cbf;
  --accent-glow: rgba(155, 109, 255, 0.35);
  --success: #4ade80;
  --font-sans: "DM Sans", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", monospace;
  --nav-h: 72px;
  --section-pad: clamp(4rem, 8vw, 7rem);
  --container: min(1120px, 92vw);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg-deep);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
}

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

a:hover {
  color: #c4a8ff;
}

.container {
  width: var(--container);
  margin-inline: auto;
}

/* Nav */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: rgba(6, 6, 11, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  width: 100%;
  max-width: none;
  margin-inline: 0;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
  box-sizing: border-box;
}

.brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  color: var(--text);
}

.brand img {
  height: 40px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
}

.nav-cta {
  padding: 0.55rem 1.1rem;
  background: var(--accent);
  color: #fff !important;
  border-radius: 6px;
  font-weight: 600;
}

.nav-cta:hover {
  background: #b08aff;
  color: #fff !important;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem;
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

#intelligence-graph {
  width: 100%;
  height: 100%;
  display: block;
  opacity: 0.55;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 40%, transparent 0%, var(--bg-deep) 75%);
  z-index: 1;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: var(--container);
  margin-inline: auto;
  padding: 3rem 0 5rem;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.15;
  max-width: 18ch;
  margin: 0 0 1.25rem;
  letter-spacing: -0.02em;
}

.hero-lead {
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  color: var(--text-muted);
  max-width: 52ch;
  margin: 0 0 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.2s, background 0.2s;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 24px var(--accent-glow);
}

.btn-primary:hover {
  background: #b08aff;
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.hero-proof {
  font-size: 0.85rem;
  color: var(--text-muted);
  max-width: 55ch;
}

.hero-proof strong {
  color: var(--text);
  font-weight: 500;
}

/* Sections */
.section {
  padding: var(--section-pad) 0;
  border-top: 1px solid var(--border);
}

.section-header {
  margin-bottom: 3rem;
}

.section-header.center {
  text-align: center;
}

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.section h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  font-weight: 700;
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}

.section-intro {
  color: var(--text-muted);
  max-width: 60ch;
  margin: 0;
}

.section-header.center .section-intro {
  margin-inline: auto;
}

/* Pillars strip */
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 0;
  padding: 2rem 0;
  background: var(--bg-elevated);
  border-block: 1px solid var(--border);
}

.pillar {
  padding: 1rem 1.25rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  border-left: 2px solid var(--accent-dim);
}

.pillar strong {
  display: block;
  color: var(--text);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

/* Platform cards */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.platform-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.platform-card:hover {
  border-color: var(--accent-dim);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.platform-card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.35rem;
  color: var(--accent);
}

.platform-tagline {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0 0 1.25rem;
  font-weight: 500;
}

.pio {
  margin: 0.75rem 0;
  font-size: 0.88rem;
}

.pio-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 0.2rem;
}

/* Service cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
}

.service-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.service-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Skills */
.skills-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

@media (max-width: 768px) {
  .skills-layout {
    grid-template-columns: 1fr;
  }
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-tag {
  padding: 0.4rem 0.85rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Consulting offers */
.offer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.offer-card {
  background: linear-gradient(145deg, var(--bg-card) 0%, var(--bg-elevated) 100%);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
}

.offer-card.featured {
  border-color: var(--accent-dim);
  box-shadow: 0 0 40px rgba(155, 109, 255, 0.08);
}

.offer-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
}

.offer-card .offer-desc {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin: 0 0 1.25rem;
  flex-grow: 1;
}

.offer-card ul {
  margin: 0 0 1.5rem;
  padding-left: 1.1rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.offer-card li {
  margin-bottom: 0.35rem;
}

/* Case studies */
.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.case-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
}

.case-card h3 {
  margin: 0 0 0.75rem;
  font-size: 1.05rem;
}

.case-card ul {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.case-card li {
  margin-bottom: 0.3rem;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

@media (max-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
}

.about-copy p {
  color: var(--text-muted);
  margin: 0 0 1rem;
}

.credentials {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

.credential {
  font-size: 0.78rem;
  padding: 0.35rem 0.7rem;
  background: var(--bg-elevated);
  border-radius: 4px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.about-visual {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.about-visual img {
  display: block;
  width: 100%;
  object-fit: cover;
}

/* Tech stack */
.tech-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
}

.tech-item {
  padding: 0.45rem 0.9rem;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
}

/* Final CTA */
.cta-band {
  text-align: center;
  padding: var(--section-pad) 0;
  background: linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-elevated) 50%, var(--bg-deep) 100%);
  border-top: 1px solid var(--border);
}

.cta-band h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0 0 0.75rem;
}

.cta-band p {
  color: var(--text-muted);
  max-width: 45ch;
  margin: 0 auto 1.75rem;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

/* Footer */
.site-footer {
  padding: 3rem 0 2rem;
  border-top: 1px solid var(--border);
  background: var(--bg-card);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-grid h4 {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
}

.footer-grid p,
.footer-grid a {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin: 0.25rem 0;
  display: block;
}

.footer-bottom {
  text-align: center;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 0.5rem;
}

.social-links a {
  color: var(--text-muted);
}

.social-links a:hover {
  color: var(--accent);
}

/* Graph legend */
.graph-legend {
  position: absolute;
  bottom: 2rem;
  right: max(4vw, 1rem);
  z-index: 3;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  text-align: right;
  line-height: 1.8;
}

.graph-legend span {
  color: var(--accent);
}

/* Mobile nav */
@media (max-width: 900px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg-deep);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem;
    gap: 1rem;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.25s, opacity 0.25s;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .graph-legend {
    display: none;
  }
}