/* InMetis Research Labs — Design System */

:root {
  --bg: #000000;
  --bg-elevated: #0a0a0a;
  --text: #e8e8e8;
  --text-muted: #888888;
  --text-dim: #555555;
  --accent: #c8ff00;
  --accent-dim: rgba(200, 255, 0, 0.15);
  --border: #1a1a1a;
  --border-light: #2a2a2a;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --grid-size: 80px;
  --nav-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ── Grid Background ── */
.grid-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
}

.grid-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 100%, rgba(200,255,0,0.04) 0%, transparent 70%);
}

/* ── Globe Canvas ── */
#globe-canvas {
  position: fixed;
  bottom: -10%;
  left: 50%;
  transform: translateX(-50%);
  width: min(900px, 120vw);
  height: min(900px, 120vw);
  z-index: 0;
  pointer-events: none;
  opacity: 0.35;
}

/* ── Layout ── */
.page-wrapper {
  position: relative;
  z-index: 1;
}

.container {
  width: min(1400px, 100%);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
}

/* ── Navigation ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.nav-logo-icon {
  color: var(--accent);
  font-size: 1.3rem;
  line-height: 1;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0;
}

.nav-cluster {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-cluster + .nav-cluster {
  margin-left: 2.5rem;
  padding-left: 2.5rem;
  border-left: none;
  position: relative;
}

.nav-cluster + .nav-cluster::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--accent);
}

.nav-cluster:first-child::before {
  content: '';
  position: absolute;
  left: -1.25rem;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--accent);
}

.nav-cluster:first-child {
  position: relative;
}

.nav-link {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color 0.2s;
}

.nav-link:hover {
  color: var(--text);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-shrink: 0;
}

.nav-login {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color 0.2s;
}

.nav-login:hover {
  color: var(--text);
}

.btn-demo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--accent);
  color: #000;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.65rem 1rem 0.65rem 1.25rem;
  border: none;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.2s;
}

.btn-demo:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn-demo-icon {
  width: 14px;
  height: 14px;
  background: #000;
  flex-shrink: 0;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text);
  transition: transform 0.3s, opacity 0.3s;
}

.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding-top: var(--nav-height);
  position: relative;
}

.hero-headline {
  padding: clamp(3rem, 8vh, 6rem) 0 clamp(2rem, 4vh, 3rem);
}

.hero-headline h1 {
  font-size: clamp(3.5rem, 11vw, 9.5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.95;
  color: var(--text);
}

.hero-headline h1 .accent {
  color: var(--accent);
}

.hero-bottom {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  padding-bottom: clamp(3rem, 6vh, 5rem);
  align-items: end;
}

.hero-cta h2 {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 500;
  color: var(--text);
  margin-bottom: 1rem;
  max-width: 420px;
  line-height: 1.4;
}

.hero-cta p {
  font-size: 0.875rem;
  color: var(--text-muted);
  max-width: 400px;
  margin-bottom: 1.75rem;
  line-height: 1.7;
}

.bracket-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  transition: gap 0.2s;
}

.bracket-link:hover {
  gap: 0.75rem;
}

.bracket-link .arrow {
  font-size: 0.9rem;
}

/* Featured box */
.featured-box {
  border: 1px solid var(--border-light);
  padding: 1.5rem;
  max-width: 480px;
  justify-self: end;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
}

.featured-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.featured-label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.featured-nav {
  display: flex;
  gap: 0.5rem;
}

.featured-nav button {
  background: none;
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  width: 28px;
  height: 28px;
  cursor: pointer;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, color 0.2s;
}

.featured-nav button:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.featured-item {
  display: none;
}

.featured-item.active {
  display: block;
}

.featured-item-header {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.featured-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  flex-shrink: 0;
  margin-top: 0.45rem;
}

.featured-item h3 {
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.45;
  color: var(--text);
}

/* ── Section shared ── */
.section {
  padding: clamp(5rem, 10vh, 8rem) 0;
  border-top: 1px solid var(--border);
  position: relative;
}

.section-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.section-label::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--accent);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1.25rem;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 560px;
  line-height: 1.75;
}

/* ── Services ── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  margin-top: 3.5rem;
  border: 1px solid var(--border);
}

.service-card {
  background: var(--bg);
  padding: 2rem;
  transition: background 0.3s;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s;
}

.service-card:hover {
  background: var(--bg-elevated);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
  color: var(--accent);
}

.service-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.service-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.service-tag {
  display: inline-block;
  margin-top: 1.25rem;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.8;
}

/* ── Think Tank ── */
.think-tank {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.think-tank-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.stat-item {
  background: var(--bg);
  padding: 2rem;
  text-align: center;
}

.stat-number {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.think-tank-content .pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 2rem;
}

.pill {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.4rem 0.85rem;
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  transition: border-color 0.2s, color 0.2s;
}

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

/* ── Research Publications ── */
.publications-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3.5rem;
}

.pub-card {
  border: 1px solid var(--border);
  padding: 1.75rem;
  transition: border-color 0.3s, transform 0.3s;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.pub-card:hover {
  border-color: var(--border-light);
  transform: translateY(-3px);
}

.pub-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pub-type {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.pub-date {
  font-size: 0.7rem;
  color: var(--text-dim);
}

.pub-card h3 {
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.45;
  flex: 1;
}

.pub-card p {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── About ── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.about-values {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.value-item {
  background: var(--bg);
  padding: 1.5rem 1.75rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.value-num {
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.1em;
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.value-item h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.value-item p {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── Contact ── */
.contact-section {
  border-top: 1px solid var(--border);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.contact-info-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1.75rem;
}

.contact-info-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  flex-shrink: 0;
  margin-top: 0.5rem;
}

.contact-info-item h4 {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.contact-info-item p {
  font-size: 0.9rem;
  color: var(--text);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-elevated);
  border: 1px solid var(--border-light);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.875rem;
  padding: 0.75rem 1rem;
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group select option {
  background: var(--bg);
}

.btn-submit {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--accent);
  color: #000;
  font-family: var(--font);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.85rem 1.5rem;
  border: none;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.2s;
  margin-top: 0.5rem;
}

.btn-submit:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  font-size: 0.75rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

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

/* ── Animations ── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ── Responsive ── */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .publications-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .think-tank,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links,
  .nav-actions {
    display: none;
  }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(16px);
    padding: 2rem;
    border-bottom: 1px solid var(--border);
    gap: 0;
  }

  .nav-links.open .nav-cluster {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
    margin: 0;
    padding: 0;
    border: none;
  }

  .nav-links.open .nav-cluster::before,
  .nav-links.open .nav-cluster:first-child::before {
    display: none;
  }

  .nav-links.open .nav-cluster + .nav-cluster {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
  }

  .nav-actions.open {
    display: flex;
    position: fixed;
    top: calc(var(--nav-height) + 200px);
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    padding: 0 2rem 2rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-bottom {
    grid-template-columns: 1fr;
  }

  .featured-box {
    justify-self: start;
    max-width: 100%;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .publications-grid {
    grid-template-columns: 1fr;
  }

  .think-tank-stats {
    grid-template-columns: 1fr 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}