:root {
  --geo-canvas: #f8fafc;
  --geo-surface: #f1f5f9;
  --geo-surface-high: #ffffff;
  --geo-ink: #0f172a;
  --geo-muted: #475569;
  --geo-stroke: #cbd5e1;
  --geo-signal: #0d9488;
  --geo-signal-hover: #0f766e;
  --geo-signal-soft: #ccfbf1;
  --geo-signal-dark: #134e4a;
  --geo-amber: #d97706;
  --geo-dark-slab: #090d16;
  --geo-dark-text: #e2e8f0;
  --font-display: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-code: 'JetBrains Mono', monospace;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--geo-canvas);
  color: var(--geo-ink);
}

body {
  font-family: var(--font-body);
  line-height: 1.6;
  background-color: var(--geo-canvas);
  color: var(--geo-ink);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

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

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.alt-code-badge {
  font-family: var(--font-code);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--geo-signal-dark);
  background-color: var(--geo-signal-soft);
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 0.75rem;
}

/* Announcement Top Bar */
.alt-alert-strip {
  background-color: var(--geo-signal-dark);
  color: #f0fdfa;
  padding: 0.55rem 1.25rem;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: var(--font-code);
  letter-spacing: 0.02em;
}

.alt-alert-strip a {
  color: #5eead4;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: color 0.2s;
}

.alt-alert-strip a:hover {
  color: #ffffff;
  text-decoration: underline;
}

/* Header */
.alt-masthead {
  background-color: var(--geo-surface-high);
  border-bottom: 1px solid var(--geo-stroke);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.alt-masthead-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.alt-brand-anchor {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.22rem;
  color: var(--geo-signal);
  letter-spacing: -0.01em;
}

.alt-brand-anchor svg {
  width: 28px;
  height: 28px;
  fill: var(--geo-signal);
}

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

.alt-nav-link {
  font-family: var(--font-display);
  font-variant: small-caps;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  font-weight: 600;
  color: var(--geo-ink);
  transition: color 0.2s;
  padding: 0.4rem 0.2rem;
}

.alt-nav-link:hover,
.alt-nav-link.active {
  color: var(--geo-signal);
}

.alt-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  color: var(--geo-ink);
}

.alt-action-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.8rem 1.6rem;
  border-radius: 6px;
  background-color: var(--geo-signal);
  color: #ffffff;
  border: 1px solid var(--geo-signal);
  cursor: pointer;
  transition: all 0.2s ease;
}

.alt-action-button:hover {
  background-color: var(--geo-signal-hover);
  border-color: var(--geo-signal-hover);
}

.alt-ghost-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.8rem 1.6rem;
  border-radius: 6px;
  background-color: transparent;
  color: #ffffff;
  border: 1.5px solid #ffffff;
  cursor: pointer;
  transition: all 0.2s ease;
}

.alt-ghost-button:hover {
  background-color: #ffffff;
  color: var(--geo-signal-dark);
}

/* Split-Screen Hero Preset B */
.alt-stage-split {
  display: flex;
  min-height: 600px;
  border-bottom: 1px solid var(--geo-stroke);
  background-color: var(--geo-surface);
}

.alt-stage-copy {
  flex: 0 0 55%;
  padding: 4.5rem 3.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background-color: var(--geo-surface);
}

.alt-stage-copy h1 {
  font-size: clamp(2.1rem, 3.8vw, 3.2rem);
  color: var(--geo-ink);
  margin-bottom: 1.25rem;
}

.alt-stage-lead {
  font-size: 1.1rem;
  color: var(--geo-muted);
  line-height: 1.65;
  margin-bottom: 2rem;
  max-width: 580px;
}

.alt-stage-media {
  flex: 0 0 45%;
  position: relative;
  overflow: hidden;
  background-color: #000;
}

.alt-stage-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Editorial 3-Col Section */
.alt-editorial-block {
  max-width: 1240px;
  margin: 0 auto;
  padding: 5rem 1.5rem 3.5rem;
}

.alt-editorial-header {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 3.5rem;
}

.alt-editorial-header h2 {
  font-size: clamp(1.8rem, 2.8vw, 2.5rem);
  margin-bottom: 0.9rem;
}

.alt-editorial-header p {
  color: var(--geo-muted);
  font-size: 1.05rem;
}

.alt-editorial-trio {
  columns: 3;
  column-gap: 2.5rem;
}

.alt-editorial-item {
  break-inside: avoid;
  margin-bottom: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  background: var(--geo-surface-high);
  padding: 2rem;
  border: 1px solid var(--geo-stroke);
  border-radius: 8px;
}

.alt-editorial-item h3 {
  font-size: 1.25rem;
  color: var(--geo-ink);
}

.alt-editorial-item p {
  color: var(--geo-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.alt-editorial-icon {
  margin-top: 1rem;
  display: inline-flex;
  width: 36px;
  height: 36px;
  border-radius: 6px;
  background-color: var(--geo-signal-soft);
  align-items: center;
  justify-content: center;
  color: var(--geo-signal-dark);
}

.alt-panorama-strip {
  width: 100%;
  height: 40vh;
  min-height: 280px;
  max-height: 480px;
  overflow: hidden;
  border-top: 1px solid var(--geo-stroke);
  border-bottom: 1px solid var(--geo-stroke);
}

.alt-panorama-strip img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Masonry Features Preset B */
.alt-mosaic-area {
  max-width: 1240px;
  margin: 0 auto;
  padding: 5rem 1.5rem;
}

.alt-mosaic-columns {
  columns: 3 320px;
  column-gap: 1.5rem;
}

.alt-mosaic-card {
  break-inside: avoid;
  background-color: var(--geo-surface);
  border: 1px solid var(--geo-stroke);
  border-radius: 8px;
  padding: 1.8rem;
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.alt-mosaic-card.alt-mosaic-card--highlight {
  position: relative;
  background: none;
  padding: 0;
  overflow: hidden;
  min-height: 380px;
  border: none;
}

.alt-mosaic-card--highlight img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.alt-mosaic-card--highlight .alt-highlight-overlay {
  position: relative;
  z-index: 2;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.3) 0%, rgba(15, 23, 42, 0.92) 100%);
  color: #ffffff;
  padding: 2.2rem;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.alt-highlight-overlay h3 {
  font-size: 1.45rem;
  margin-bottom: 0.5rem;
  color: #ffffff;
}

.alt-highlight-overlay p {
  color: #cbd5e1;
  font-size: 0.92rem;
}

.alt-mosaic-card svg {
  width: 32px;
  height: 32px;
  color: var(--geo-signal);
  margin-bottom: 0.3rem;
}

/* Steps Chain Horizontal Track */
.alt-sprint-sequence {
  background-color: var(--geo-surface-high);
  border-top: 1px solid var(--geo-stroke);
  border-bottom: 1px solid var(--geo-stroke);
  padding: 5rem 1.5rem;
}

.alt-sprint-wrap {
  max-width: 1240px;
  margin: 0 auto;
}

.alt-track-nodes {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 3.5rem;
  position: relative;
}

.alt-track-nodes::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 5%;
  width: 90%;
  border-top: 2px dashed var(--geo-stroke);
  z-index: 1;
}

.alt-track-unit {
  position: relative;
  z-index: 2;
  background-color: var(--geo-surface-high);
  padding: 1.5rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--geo-stroke);
}

.alt-track-unit .alt-code-badge {
  margin-bottom: 1rem;
}

.alt-track-unit h3 {
  font-size: 1.15rem;
  margin-bottom: 0.6rem;
}

.alt-track-unit p {
  font-size: 0.9rem;
  color: var(--geo-muted);
}

/* Big CTA Strip */
.alt-beacon-strip {
  background-color: var(--geo-signal-dark);
  color: #ffffff;
  padding: 4.5rem 1.5rem;
  text-align: center;
}

.alt-beacon-box {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.alt-beacon-box h2 {
  font-size: clamp(2rem, 3.2vw, 2.8rem);
  color: #ffffff;
}

.alt-beacon-box p {
  color: #ccfbf1;
  font-size: 1.1rem;
  max-width: 650px;
}

/* Expert / Mentor Page */
.alt-mentor-split {
  max-width: 1240px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
  display: flex;
  gap: 3.5rem;
  align-items: center;
}

.alt-mentor-narrative {
  flex: 1 1 50%;
}

.alt-mentor-media {
  flex: 1 1 50%;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--geo-stroke);
}

.alt-mentor-media img {
  width: 100%;
  height: 480px;
  object-fit: cover;
}

.alt-metric-deck {
  max-width: 1240px;
  margin: 0 auto 4rem;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.alt-metric-tile {
  background: var(--geo-surface);
  border: 1px solid var(--geo-stroke);
  border-radius: 8px;
  padding: 1.8rem;
  text-align: center;
}

.alt-metric-tile strong {
  font-family: var(--font-display);
  font-size: 2.3rem;
  display: block;
  color: var(--geo-signal-dark);
  margin-bottom: 0.3rem;
}

.alt-metric-tile span {
  font-size: 0.9rem;
  color: var(--geo-muted);
}

.alt-accordion-dossier {
  max-width: 1000px;
  margin: 0 auto 5rem;
  padding: 0 1.5rem;
}

.alt-accordion-item {
  background: var(--geo-surface-high);
  border: 1px solid var(--geo-stroke);
  border-radius: 8px;
  margin-bottom: 1.25rem;
  padding: 1.5rem 1.8rem;
}

.alt-accordion-item summary {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--geo-ink);
}

.alt-accordion-item summary::-webkit-details-marker {
  display: none;
}

.alt-accordion-item summary::after {
  content: '↓';
  font-family: var(--font-code);
  font-size: 1.1rem;
  color: var(--geo-signal);
}

.alt-accordion-item[open] summary::after {
  content: '↑';
}

.alt-accordion-content {
  margin-top: 1rem;
  color: var(--geo-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* Reserve Page (2 columns: info left / form right) */
.alt-dispatch-hub {
  max-width: 1200px;
  margin: 3.5rem auto 5rem;
  padding: 0 1.5rem;
}

.alt-hub-heading {
  margin-bottom: 2.5rem;
}

.alt-hub-heading h1 {
  font-size: clamp(2rem, 3vw, 2.7rem);
  margin-bottom: 0.75rem;
}

.alt-hub-heading p {
  color: var(--geo-muted);
  font-size: 1.05rem;
}

.alt-split-dispatch {
  display: flex;
  gap: 3rem;
  align-items: flex-start;
}

.alt-brief-sidebar {
  flex: 0 0 42%;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.alt-brief-card {
  background-color: var(--geo-surface);
  border: 1px solid var(--geo-stroke);
  border-radius: 8px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.alt-brief-card svg {
  width: 26px;
  height: 26px;
  color: var(--geo-signal);
}

.alt-brief-card h3 {
  font-size: 1.1rem;
}

.alt-brief-card p {
  font-size: 0.9rem;
  color: var(--geo-muted);
}

.alt-intake-module {
  flex: 0 0 calc(58% - 3rem);
  background-color: var(--geo-surface-high);
  border: 1px solid var(--geo-stroke);
  border-radius: 8px;
  padding: 2.5rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
}

.alt-input-field {
  margin-bottom: 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.alt-input-field label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--geo-ink);
}

.alt-input-field input[type="text"],
.alt-input-field input[type="email"],
.alt-input-field textarea {
  width: 100%;
  padding: 0.8rem 0.95rem;
  border: 1px solid var(--geo-stroke);
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  background-color: var(--geo-canvas);
  color: var(--geo-ink);
  transition: border-color 0.2s;
}

.alt-input-field input:focus,
.alt-input-field textarea:focus {
  outline: none;
  border-color: var(--geo-signal);
  background-color: #ffffff;
}

.alt-check-inline {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  margin-bottom: 1.5rem;
  font-size: 0.85rem;
  color: var(--geo-muted);
}

.alt-check-inline input {
  margin-top: 0.2rem;
  accent-color: var(--geo-signal);
}

.alt-check-inline a {
  color: var(--geo-signal-dark);
  text-decoration: underline;
}

.alt-form-notice {
  margin-top: 1.25rem;
  font-size: 0.8rem;
  color: var(--geo-muted);
  border-top: 1px solid var(--geo-stroke);
  padding-top: 1rem;
}

/* Thank You and Legal Pages */
.alt-doc-article {
  max-width: 860px;
  margin: 3.5rem auto 5rem;
  padding: 0 1.5rem;
  min-height: 60vh;
}

.alt-doc-article h1 {
  font-size: 2.4rem;
  margin-bottom: 1.5rem;
  color: var(--geo-ink);
}

.alt-doc-article h2 {
  font-size: 1.4rem;
  margin: 2rem 0 0.8rem;
  color: var(--geo-ink);
}

.alt-doc-article p {
  color: var(--geo-muted);
  margin-bottom: 1.2rem;
  font-size: 1rem;
  line-height: 1.7;
}

.alt-doc-article ul {
  margin-left: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--geo-muted);
}

.alt-doc-article li {
  margin-bottom: 0.5rem;
}

.alt-gratitude-slab {
  max-width: 900px;
  margin: 4rem auto 6rem;
  padding: 0 1.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.alt-gratitude-slab img {
  width: 100%;
  max-height: 380px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--geo-stroke);
  margin-bottom: 1rem;
}

/* Footer */
.alt-base-footer {
  background-color: var(--geo-dark-slab);
  color: var(--geo-dark-text);
  padding: 4rem 1.5rem 2rem;
  margin-top: auto;
  border-top: 1px solid #1e293b;
}

.alt-footer-matrix {
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.alt-footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 2rem;
}

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

.alt-footer-links a {
  color: #94a3b8;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.alt-footer-links a:hover {
  color: #ffffff;
}

.alt-footer-notice {
  color: #94a3b8;
  font-size: 0.82rem;
  border-top: 1px solid #1e293b;
  border-bottom: 1px solid #1e293b;
  padding: 1.2rem 0;
  line-height: 1.6;
}

.alt-footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.82rem;
  color: #64748b;
  font-family: var(--font-code);
}

/* Cookie Notice Banner */
.alt-cookie-panel {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--geo-surface-high);
  border-top: 2px solid var(--geo-signal);
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.12);
  padding: 1.25rem 1.5rem;
  z-index: 9999;
  display: none;
}

.alt-cookie-panel.is-visible {
  display: block;
}

.alt-cookie-box {
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.alt-cookie-text {
  font-size: 0.9rem;
  color: var(--geo-muted);
  flex: 1 1 500px;
}

.alt-cookie-text a {
  color: var(--geo-signal-dark);
  text-decoration: underline;
}

.alt-cookie-actions {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.alt-cookie-btn-accept {
  background-color: var(--geo-signal);
  color: #ffffff;
  border: none;
  padding: 0.55rem 1.25rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
}

.alt-cookie-btn-decline {
  background-color: var(--geo-surface);
  color: var(--geo-muted);
  border: 1px solid var(--geo-stroke);
  padding: 0.55rem 1.25rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
}

/* Responsive adjustments */
@media (max-width: 960px) {
  .alt-stage-split {
    flex-direction: column;
  }
  .alt-stage-copy {
    flex: 1 1 auto;
    padding: 3rem 1.5rem;
  }
  .alt-stage-media {
    flex: 1 1 320px;
    min-height: 300px;
  }
  .alt-editorial-trio {
    columns: 1;
  }
  .alt-track-nodes {
    grid-template-columns: 1fr 1fr;
  }
  .alt-track-nodes::before {
    display: none;
  }
  .alt-mentor-split {
    flex-direction: column;
  }
  .alt-metric-deck {
    grid-template-columns: repeat(2, 1fr);
  }
  .alt-split-dispatch {
    flex-direction: column;
  }
  .alt-brief-sidebar,
  .alt-intake-module {
    flex: 1 1 100%;
    width: 100%;
  }
}

@media (max-width: 680px) {
  .alt-menu-toggle {
    display: block;
  }
  .alt-nav-group {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--geo-surface-high);
    border-bottom: 1px solid var(--geo-stroke);
    flex-direction: column;
    padding: 1.5rem;
    gap: 1rem;
    box-shadow: 0 10px 20px rgba(0,0,0,0.06);
  }
  .alt-nav-group.is-open {
    display: flex;
  }
  .alt-mosaic-columns {
    columns: 1;
  }
  .alt-track-nodes {
    grid-template-columns: 1fr;
  }
  .alt-metric-deck {
    grid-template-columns: 1fr;
  }
}