:root {
  --bg-canvas: #1c1f24;
  --bg-surface: #292e34;
  --bg-surface-alt: #22262c;
  --text-primary: #e5e7eb;
  --text-muted: #9ca3af;
  --accent-teal: #14b8a6;
  --accent-teal-hover: #0d9488;
  --accent-teal-dark: #0f766e;
  --border-subtle: #374151;
  --border-strong: #4b5563;
  --font-stack: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --ease-kinetic: cubic-bezier(0.16, 1, 0.3, 1);
  --max-w: 1200px;
}

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

body {
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-stack);
  font-size: 1.05rem;
  line-height: 1.65;
  overflow-wrap: anywhere;
  hyphens: auto;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent-teal);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}

a:hover, a:focus-visible {
  color: #5eead4;
}

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

.site-header {
  position: relative;
  width: 100%;
  background-color: #17191d;
  border-bottom: 1px solid var(--border-subtle);
  z-index: 50;
}

.header-container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
  margin-right: auto;
}

.brand-badge {
  width: 32px;
  height: 32px;
  background-color: var(--accent-teal);
  color: #1c1f24;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 0.95rem;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  padding: 0.35rem 0.5rem;
  transition: color 0.2s ease;
}

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

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-size: 1.5rem;
  line-height: 1;
  padding: 0.4rem 0.75rem;
  border-radius: 4px;
  cursor: pointer;
}

.hero-block {
  padding: 4.5rem 1.5rem 3.5rem;
  max-width: var(--max-w);
  margin: 0 auto;
}

.hero-headline {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  max-width: 22ch;
  margin-bottom: 1.5rem;
}

.hero-lead {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 68ch;
  margin-bottom: 2rem;
  line-height: 1.55;
}

.btn-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--accent-teal);
  color: #1c1f24;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  padding: 0.85rem 1.75rem;
  border-radius: 9999px;
  border: none;
  cursor: pointer;
  transition: transform 0.2s var(--ease-kinetic), background-color 0.2s ease;
}

.btn-pill:hover, .btn-pill:focus-visible {
  background-color: #5eead4;
  color: #111827;
  transform: translateY(-2px);
}

.btn-pill-dark {
  background-color: #1c1f24;
  color: #e5e7eb;
}

.btn-pill-dark:hover, .btn-pill-dark:focus-visible {
  background-color: #292e34;
  color: var(--accent-teal);
}

.section-wrapper {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 3.5rem 1.5rem;
}

.reading-container {
  max-width: 72ch;
  margin: 0 auto;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

.lead-block {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 2.5rem;
  margin-bottom: 2.5rem;
}

.lead-block h2 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.lead-block p {
  color: var(--text-muted);
  font-size: 1.15rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.study-grid-2col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.study-panel {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 2rem;
  display: flex;
  flex-direction: column;
}

.study-panel h3 {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.study-panel p {
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.panel-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-teal);
  font-weight: 700;
  margin-top: 1rem;
}

.teal-band {
  background-color: var(--accent-teal);
  color: #1c1f24;
  padding: 4rem 1.5rem;
  margin: 3rem 0;
}

.teal-band-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.teal-band h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1rem;
  color: #111827;
}

.teal-band p {
  font-size: 1.2rem;
  color: #1f2937;
  max-width: 68ch;
  margin-bottom: 2rem;
  font-weight: 500;
}

.grid-3col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.info-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 1.75rem;
}

.info-card h3 {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 0.65rem;
  letter-spacing: -0.02em;
}

.info-card p {
  color: var(--text-muted);
  font-size: 0.98rem;
}

.media-container {
  margin: 2rem 0;
  border: 1px solid var(--border-subtle);
  background-color: var(--bg-surface-alt);
}

.media-container img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.media-caption {
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
}

.table-wrap {
  overflow-x: auto;
  margin: 2rem 0;
  border: 1px solid var(--border-subtle);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th, td {
  padding: 1rem;
  border-bottom: 1px solid var(--border-subtle);
}

th {
  background-color: var(--bg-surface-alt);
  font-weight: 700;
  color: var(--text-primary);
}

td {
  color: var(--text-muted);
  background-color: var(--bg-surface);
}

.composer-box {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 2rem;
  margin-top: 2rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-weight: 700;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  background-color: var(--bg-canvas);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  padding: 0.75rem 1rem;
  font-family: inherit;
  font-size: 1rem;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: 2px solid var(--accent-teal);
  border-color: transparent;
}

.form-textarea {
  resize: vertical;
  min-height: 130px;
}

.composer-preview {
  margin-top: 1.5rem;
  background-color: #121417;
  border: 1px solid var(--border-subtle);
  padding: 1rem;
  font-family: monospace;
  font-size: 0.9rem;
  white-space: pre-wrap;
  color: #a7f3d0;
  max-height: 200px;
  overflow-y: auto;
}

.composer-actions {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.faq-accordion details {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  margin-bottom: 1rem;
  padding: 1rem 1.25rem;
}

.faq-accordion summary {
  font-weight: 800;
  font-size: 1.15rem;
  cursor: pointer;
  letter-spacing: -0.01em;
  list-style-position: inside;
  color: var(--text-primary);
}

.faq-accordion summary:hover {
  color: var(--accent-teal);
}

.faq-accordion p {
  margin-top: 1rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.site-footer {
  background-color: #121417;
  border-top: 1px solid var(--border-subtle);
  padding: 4rem 1.5rem 2.5rem;
  margin-top: 5rem;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  display: inline-block;
  margin-bottom: 0.75rem;
}

.footer-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 42ch;
  margin-bottom: 1rem;
}

.footer-legal-entity {
  font-size: 0.85rem;
  color: #6b7280;
  line-height: 1.5;
}

.footer-heading {
  font-size: 0.9rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: var(--accent-teal);
  text-decoration: underline;
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid #1f242c;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: #6b7280;
  flex-wrap: wrap;
  gap: 1rem;
}

.scroll-reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s var(--ease-kinetic), transform 0.6s var(--ease-kinetic);
}

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

@media (max-width: 900px) {
  .study-grid-2col, .grid-3col, .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: inline-block;
  }
  
  .primary-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: #17191d;
    border-bottom: 1px solid var(--border-subtle);
    padding: 1.5rem;
    display: none;
  }

  .primary-nav.nav-open {
    display: block;
  }

  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
  }
  
  .hero-block {
    padding: 3rem 1.25rem 2.5rem;
  }
}

@media (prefers-reduced-motion: reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}