/* ==========================================================================
   SALSA 2026 Visual System
   Palette: canopy ink, chlorophyll green, field terracotta, solar ochre,
   warm paper neutrals, and soft sage surfaces.
   ========================================================================== */
:root {
  --color-bg: #f4f1e8;
  --color-bg-alt: #e9eee4;
  --color-surface: #fffaf1;
  --color-surface-2: #ebe4d6;
  --color-ink: #151d17;
  --color-heading: #102218;
  --color-muted: #5c675d;
  --color-primary: #24543a;
  --color-primary-hover: #183c2a;
  --color-secondary: #b84a2a;
  --color-secondary-hover: #8f351e;
  --color-accent: #d4a23c;
  --color-border: rgba(21, 29, 23, 0.14);
  --color-border-strong: rgba(36, 84, 58, 0.24);
  --color-dark: #101713;
  --color-dark-2: #17241b;
  --color-dark-muted: rgba(244, 241, 232, 0.7);

  --primary-color: var(--color-primary);
  --primary-color-soft: rgba(36, 84, 58, 0.1);
  --secondary-color: var(--color-secondary);
  --secondary-color-dark: var(--color-secondary-hover);
  --secondary-hover-color: var(--color-secondary-hover);
  --accent-color: var(--color-accent);
  --button-text-color: #fffaf1;
  --bg-dark: var(--color-bg);
  --bg-dark-2: var(--color-bg-alt);
  --bg-light-navy: var(--color-surface-2);
  --bg-soft: rgba(36, 84, 58, 0.08);
  --dark-bg: var(--color-bg);
  --card-dark-bg: var(--color-surface);
  --text-heading: var(--color-heading);
  --text-body: var(--color-muted);
  --text-muted: rgba(92, 103, 93, 0.82);
  --text-light: var(--color-heading);
  --text-lightest: #fffaf1;
  --border-color: var(--color-border);
  --border-color-soft: rgba(21, 29, 23, 0.08);
  --ring-color: rgba(184, 74, 42, 0.38);

  --font-main: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-alt: "Source Sans 3", Inter, ui-sans-serif, system-ui, sans-serif;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.25rem;
  --radius-full: 9999px;

  --shadow-sm: 0 8px 24px rgba(16, 23, 19, 0.08);
  --shadow-md: 0 18px 44px rgba(16, 23, 19, 0.12);
  --shadow-lg: 0 30px 72px rgba(16, 23, 19, 0.18);
  --shadow-glow: 0 18px 44px rgba(184, 74, 42, 0.18);

  --transition-speed: 180ms;
  --transition-medium: 320ms;
  --transition-smooth: cubic-bezier(0.22, 1, 0.36, 1);
  --nav-height: 4.75rem;
  --content-max: min(1240px, calc(100vw - clamp(1.5rem, 5vw, 5rem)));
  color-scheme: light;
}

html {
  scroll-padding-top: calc(var(--nav-height) + 1.25rem);
}

body {
  background:
    linear-gradient(180deg, rgba(233, 238, 228, 0.72), rgba(244, 241, 232, 0) 36rem),
    var(--color-bg);
  color: var(--text-body);
  font-family: var(--font-main);
  font-size: clamp(1rem, 0.96rem + 0.18vw, 1.08rem);
  line-height: 1.7;
  letter-spacing: 0;
}

@media (max-width: 992px) {
  body {
    background: #f7f4ed;
  }
}

body[data-nav-open="true"] {
  overflow: hidden;
}

body::-webkit-scrollbar-track {
  background: var(--color-surface-2);
}

body::-webkit-scrollbar-thumb {
  background: rgba(36, 84, 58, 0.62);
}

body::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}

h1,
h2,
h3,
h4 {
  color: var(--text-heading);
  font-family: var(--font-main);
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1.04;
  text-wrap: balance;
}

h1 {
  font-size: clamp(3rem, 7vw, 6.75rem);
}

h2 {
  font-size: clamp(2rem, 4.4vw, 4.25rem);
}

h3 {
  font-size: clamp(1.35rem, 2vw, 2rem);
}

p,
li {
  max-width: 72ch;
}

a {
  color: var(--secondary-color);
  text-decoration-color: color-mix(in srgb, var(--secondary-color) 42%, transparent);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--secondary-color-dark);
}

:focus-visible {
  outline: 3px solid var(--ring-color);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

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

.section,
.partners-section,
.orb-section {
  padding-block: clamp(4.5rem, 8vw, 8.5rem);
}

.section:nth-of-type(even),
.challenge-section,
.proof-section,
.researcher-section,
.education-section,
.cta-section {
  background:
    linear-gradient(180deg, rgba(255, 250, 241, 0.68), rgba(233, 238, 228, 0.78)),
    var(--color-bg-alt) !important;
}

.subtitle {
  color: var(--text-muted);
  font-family: var(--font-alt);
  font-size: clamp(1.05rem, 1vw + 0.85rem, 1.28rem);
  line-height: 1.65;
  max-width: 68ch;
}

.tag {
  border: 1px solid rgba(184, 74, 42, 0.28);
  background: rgba(184, 74, 42, 0.09);
  color: var(--secondary-color);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 0.34rem 0.72rem;
}

/* Navigation */
.navbar {
  background: rgba(16, 23, 19, 0.78);
  border-bottom: 1px solid rgba(255, 250, 241, 0.12);
  box-shadow: none;
  padding-block: 0.8rem;
}

.navbar.scrolled {
  background: rgba(16, 23, 19, 0.94);
  border-bottom-color: rgba(255, 250, 241, 0.16);
  box-shadow: 0 14px 36px rgba(16, 23, 19, 0.18);
  padding-block: 0.58rem;
}

.navbar-container {
  width: min(1440px, calc(100vw - clamp(1rem, 4vw, 4rem)));
  gap: var(--space-6);
}

.navbar-brand {
  color: #fffaf1;
  font-size: clamp(0.9rem, 1vw, 1.06rem);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  min-width: 0;
}

.navbar-brand img {
  height: clamp(38px, 4vw, 50px);
  filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.18));
}

.navbar-brand:hover img {
  transform: translateY(-1px) rotate(-5deg);
}

.navbar-menu {
  gap: clamp(0.65rem, 1.6vw, 1.55rem);
}

.navbar-link {
  color: rgba(255, 250, 241, 0.8);
  font-size: 0.94rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  padding: 0.65rem 0;
}

.navbar-link:hover,
.navbar-link.active,
.navbar-link[aria-current="page"] {
  color: #fffaf1;
}

.navbar-link::after {
  bottom: 0;
  height: 1px;
  background: var(--color-accent);
}

.dropdown-content {
  background: rgba(255, 250, 241, 0.96);
  border: 1px solid rgba(16, 23, 19, 0.1);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2);
}

.dropdown-content li a {
  color: var(--color-heading);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
}

.dropdown-content li a:hover {
  background: var(--color-primary);
  color: #fffaf1;
}

.mobile-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  margin-left: auto;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(255, 250, 241, 0.22);
  border-radius: var(--radius-full);
  color: #fffaf1;
  background: rgba(255, 250, 241, 0.08);
  font-size: 0;
  line-height: 1;
}

.mobile-toggle::before {
  content: "\2630";
  font-size: 1.35rem;
  line-height: 1;
}

body[data-nav-open="true"] .mobile-toggle::before {
  content: "\00d7";
  font-size: 1.7rem;
}

.mobile-toggle i {
  display: none;
}

/* Hero systems */
.hero {
  min-height: min(820px, calc(100svh - var(--nav-height)));
  padding: calc(var(--nav-height) + clamp(4rem, 8vw, 8rem)) 1rem clamp(4rem, 7vw, 7rem);
  background-color: var(--color-dark);
  background-image: linear-gradient(180deg, rgba(16, 23, 19, 0.34), rgba(16, 23, 19, 0.88));
}

.hero::before,
.hero::after {
  animation: none !important;
  background: none;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(16, 23, 19, 0.74), rgba(16, 23, 19, 0.36) 48%, rgba(16, 23, 19, 0.78)),
    linear-gradient(180deg, rgba(16, 23, 19, 0.08), rgba(16, 23, 19, 0.86)) !important;
}

.hero .container {
  max-width: 1060px;
}

.hero-headline {
  color: #fffaf1;
  font-size: clamp(3.2rem, 8vw, 7.25rem);
  letter-spacing: 0;
  line-height: 0.96;
  text-shadow: 0 22px 60px rgba(0, 0, 0, 0.42) !important;
}

.hero-subheadline {
  color: rgba(255, 250, 241, 0.84);
  font-size: clamp(1.1rem, 1.1vw + 0.88rem, 1.5rem);
  line-height: 1.55;
  max-width: 760px;
}

.typing-container {
  border: 1px solid rgba(255, 250, 241, 0.24);
  background: rgba(255, 250, 241, 0.12);
  color: #fffaf1;
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.24);
}

.hero-subpage {
  min-height: clamp(360px, 52vh, 580px) !important;
  padding: calc(var(--nav-height) + clamp(4rem, 8vw, 7rem)) 1rem clamp(4rem, 8vw, 7rem) !important;
  background-position: center !important;
  background-size: cover !important;
  isolation: isolate;
}

.hero-subpage::before {
  background:
    linear-gradient(90deg, rgba(16, 23, 19, 0.82), rgba(16, 23, 19, 0.36) 50%, rgba(16, 23, 19, 0.76)),
    linear-gradient(180deg, rgba(16, 23, 19, 0.18), rgba(16, 23, 19, 0.84)) !important;
}

.hero-subpage .hero-content {
  width: min(100%, var(--content-max));
  max-width: 960px !important;
}

.hero-subpage h1 {
  color: #fffaf1 !important;
  font-size: clamp(2.85rem, 7vw, 6rem) !important;
  letter-spacing: 0;
  line-height: 0.98;
  text-shadow: 0 18px 48px rgba(0, 0, 0, 0.36);
  overflow-wrap: break-word;
}

.page-content,
main.section {
  background: var(--color-bg) !important;
  color: var(--text-body) !important;
}

.page-content {
  padding-block: clamp(3rem, 6vw, 6rem) !important;
}

.page-content h2,
.page-content h3,
.text-block h2,
.section-header h2,
.news-header h2 {
  color: var(--text-heading) !important;
}

.page-content a:not(.navbar-link):not(.cta-button):not(.news-card):not(.researcher-card):not(.pi-profile),
.citation-link a,
sup a {
  color: var(--secondary-color) !important;
}

/* Buttons and controls */
.cta-button,
.btn,
.popup-link,
.filter-btn,
.toggle-btn,
.control-group .toggle-btn,
.diagram-point {
  min-height: 44px;
  border-radius: var(--radius-full) !important;
  font-weight: 800;
  letter-spacing: 0;
  transition:
    transform var(--transition-speed) var(--transition-smooth),
    box-shadow var(--transition-speed) var(--transition-smooth),
    background-color var(--transition-speed) var(--transition-smooth),
    border-color var(--transition-speed) var(--transition-smooth),
    color var(--transition-speed) var(--transition-smooth);
}

.cta-button,
.btn:not(.btn-secondary),
.popup-link,
.filter-btn.active,
.toggle-btn.active,
.control-group .toggle-btn.active {
  background: var(--color-secondary) !important;
  border-color: transparent !important;
  color: #fffaf1 !important;
  box-shadow: 0 10px 24px rgba(184, 74, 42, 0.16);
}

.cta-button:hover,
.btn:hover,
.popup-link:hover,
.filter-btn:hover,
.toggle-btn:hover,
.control-group .toggle-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.filter-btn,
.toggle-btn,
.btn-secondary,
.control-group .toggle-btn {
  background: rgba(255, 250, 241, 0.7) !important;
  border: 1px solid var(--color-border-strong) !important;
  color: var(--color-heading) !important;
}

.hero-video-controls {
  bottom: clamp(1rem, 3vw, 2rem) !important;
  right: clamp(1rem, 3vw, 2rem) !important;
}

.video-control-btn,
.nav-btn,
.mute-btn {
  background: rgba(255, 250, 241, 0.14) !important;
  border: 1px solid rgba(255, 250, 241, 0.26) !important;
  color: #fffaf1 !important;
  backdrop-filter: blur(16px);
}

.nav-btn {
  color: var(--color-heading) !important;
  background: var(--color-surface) !important;
  border-color: var(--color-border) !important;
}

.video-control-btn:hover,
.nav-btn:hover,
.mute-btn:hover {
  background: var(--secondary-color) !important;
  border-color: var(--secondary-color) !important;
  color: #fffaf1 !important;
}

/* Cards, media, and repeated blocks */
.news-grid,
.proof-grid,
.team-grid,
.projects-grid {
  gap: clamp(1rem, 2vw, 1.75rem) !important;
}

.news-card,
.challenge-card,
.proof-card,
.chart-card,
.researcher-card,
.pi-profile,
.project-table,
.table-container,
.leaflet-popup-content-wrapper,
.leaflet-legend {
  background: linear-gradient(180deg, rgba(255, 250, 241, 0.96), rgba(250, 245, 234, 0.94)) !important;
  border: 1px solid var(--color-border) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: var(--shadow-sm) !important;
  color: var(--text-body) !important;
}

.news-card,
.challenge-card,
.researcher-card,
.pi-profile {
  overflow: hidden;
}

.news-card:is(:hover, :focus-within),
.challenge-card:hover,
.researcher-card:hover,
.pi-profile:hover,
.partner-logo-link:hover,
.proof-card:hover {
  border-color: rgba(184, 74, 42, 0.35) !important;
  box-shadow: var(--shadow-md) !important;
  transform: translateY(-6px);
}

.news-card::after {
  display: none;
}

.news-image-wrapper {
  height: clamp(190px, 24vw, 260px) !important;
  background: var(--color-surface-2) !important;
}

.news-card img,
.content-image img,
.alternating-item__image img,
.researcher-video-wrapper,
.researcher-video,
#map,
#agrivoltaics-container,
.pillar-image,
.orb-video-wrapper {
  border-radius: var(--radius-lg) !important;
}

.content-image img,
.alternating-item__image img,
.researcher-video-wrapper,
#map,
#agrivoltaics-container,
.pillar-image {
  border: 1px solid var(--color-border) !important;
  box-shadow: var(--shadow-md) !important;
}

.news-card-content {
  padding: clamp(1.25rem, 2.4vw, 1.75rem) !important;
  gap: 0.8rem;
}

.news-card-content h3,
.challenge-card blockquote,
.researcher-card h4,
.pi-details h3,
.alternating-item__text h3,
.popup-text-content h4 {
  color: var(--text-heading) !important;
}

.news-card-content p,
.researcher-description,
.pi-description,
.popup-text-content p,
.alternating-item__text p {
  color: var(--text-muted) !important;
}

.challenge-card img {
  filter: none !important;
  opacity: 0.78;
}

.proof-card .stat-number,
.what-if-section .highlight,
.researcher-title,
.pi-title,
.alternating-item__text h3 {
  color: var(--secondary-color) !important;
}

.partners-grid {
  gap: clamp(1rem, 2vw, 1.5rem);
}

.partner-logo-link {
  width: clamp(150px, 18vw, 205px);
  height: clamp(92px, 10vw, 118px);
  background: rgba(255, 250, 241, 0.92);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  filter: grayscale(100%) opacity(74%);
}

.orb-section {
  background: var(--color-bg) !important;
}

.orb-video-wrapper {
  box-shadow: 0 22px 64px rgba(16, 23, 19, 0.18) !important;
  animation: none !important;
}

.pillars-section .container,
.researcher-section .container {
  gap: clamp(2rem, 5vw, 5rem);
}

.pillar-item {
  border-left-color: rgba(36, 84, 58, 0.2) !important;
  opacity: 0.58;
}

.pillar-item.is-visible {
  border-color: var(--secondary-color) !important;
}

.carousel-container {
  width: min(100%, 1180px);
}

.slide {
  padding-inline: clamp(0.45rem, 1.5vw, 0.9rem);
}

/* Education and content pages */
.content-flex,
.alternating-item,
.content-grid {
  gap: clamp(1.75rem, 5vw, 4rem) !important;
  align-items: center;
  margin-block: clamp(2.75rem, 5vw, 5rem) !important;
}

.content-text {
  min-width: min(100%, 18rem) !important;
}

.content-image {
  min-width: min(100%, 18rem) !important;
}

.content-text ul li::before {
  color: var(--secondary-color) !important;
}

.schools-row {
  border-bottom-color: var(--color-border) !important;
}

.schools-row,
.project-table tr {
  transition: background-color var(--transition-speed) ease;
}

.schools-row:hover,
.project-table tbody tr:hover {
  background: rgba(36, 84, 58, 0.06) !important;
}

.project-table thead th {
  background: var(--color-dark) !important;
  color: #fffaf1 !important;
}

.project-table td:nth-child(1) {
  color: var(--text-heading) !important;
}

/* Scaling diagram */
.scaling-diagram-wrapper {
  overflow-x: auto;
}

.scaling-diagram-container::before,
.scaling-diagram-container::after {
  background-color: rgba(36, 84, 58, 0.5) !important;
}

.axis-arrow.up {
  border-color: transparent transparent rgba(36, 84, 58, 0.58) transparent !important;
}

.axis-arrow.down {
  border-color: rgba(36, 84, 58, 0.58) transparent transparent transparent !important;
}

.axis-label {
  color: var(--text-heading) !important;
  background: var(--color-bg) !important;
}

.diagram-point {
  background: var(--color-primary) !important;
  color: #fffaf1 !important;
  box-shadow: var(--shadow-sm) !important;
}

.diagram-point:hover {
  background: var(--color-secondary) !important;
}

.tooltip-text {
  background: var(--color-dark) !important;
  color: #fffaf1 !important;
  box-shadow: var(--shadow-md);
}

/* Maps and 3D feature */
#map {
  height: clamp(420px, 64vh, 720px) !important;
  background: var(--color-surface-2) !important;
}

.leaflet-popup-tip,
.leaflet-popup-content-wrapper {
  background: var(--color-surface) !important;
}

.leaflet-container a.leaflet-popup-close-button,
.leaflet-container a.leaflet-popup-close-button:hover,
.leaflet-legend,
.leaflet-legend strong {
  color: var(--text-heading) !important;
}

#agrivoltaics-container {
  min-height: clamp(420px, 58vw, 620px);
}

.legend-container,
#legend-explainer {
  border-radius: var(--radius-md) !important;
  box-shadow: var(--shadow-md) !important;
}

.legend-item {
  min-height: 40px;
}

.charts-grid,
.chart-card,
.chart-section,
#yieldChart,
#productivityChart,
#photosynthesisChart,
.apexcharts-canvas,
.apexcharts-svg {
  max-width: 100% !important;
  min-width: 0 !important;
}

.apexcharts-canvas {
  margin-inline: auto;
}

.apexcharts-toolbar {
  z-index: 3 !important;
}

.apexcharts-tooltip,
.apexcharts-xaxistooltip,
.apexcharts-yaxistooltip {
  max-width: min(280px, calc(100vw - 2rem));
  white-space: normal !important;
}

.chart-section {
  border: 1px solid var(--color-border) !important;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  scroll-margin-top: calc(var(--nav-height) + 1rem);
}

.charts-grid {
  scroll-margin-top: calc(var(--nav-height) + 1rem);
}

.apexcharts-text,
.apexcharts-text tspan {
  fill: #4d594f !important;
}

.apexcharts-title-text,
.apexcharts-legend-text {
  color: #243528 !important;
  fill: #243528 !important;
}

.apexcharts-gridline {
  stroke: rgba(36, 84, 58, 0.14) !important;
}

.apexcharts-tooltip {
  color: #243528;
  border-color: rgba(36, 84, 58, 0.16) !important;
  box-shadow: 0 12px 28px rgba(16, 23, 19, 0.12) !important;
}

/* Footer */
.cta-section {
  padding-block: clamp(5rem, 9vw, 9rem);
}

.footer {
  background:
    linear-gradient(180deg, var(--color-dark-2), var(--color-dark)) !important;
  color: var(--color-dark-muted) !important;
  padding-top: clamp(4rem, 7vw, 6rem);
}

.footer-content {
  gap: clamp(2rem, 5vw, 5rem);
}

.footer h3,
.footer h4,
.footer-brand h3 {
  color: #fffaf1 !important;
}

.footer a,
.footer p,
.footer li,
.footer-bottom {
  color: var(--color-dark-muted) !important;
}

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

.footer-bottom {
  border-top-color: rgba(255, 250, 241, 0.14) !important;
}

/* Lightweight reveal polish */
.reveal {
  transform: translateY(22px);
  transition-duration: 680ms;
}

/* Responsive refinements */
@media (max-width: 1100px) {
  .navbar-menu {
    gap: 0.8rem;
  }

  .navbar-link {
    font-size: 0.86rem;
  }
}

@media (max-width: 992px) {
  :root {
    --nav-height: 4.25rem;
  }

  .navbar-container {
    gap: 0.75rem;
  }

  .navbar-menu {
    display: none;
    position: fixed;
    inset: 0;
    width: 100vw;
    max-width: 100vw;
    height: 100dvh;
    max-height: 100dvh;
    padding: calc(var(--nav-height) + 2rem) clamp(1.25rem, 6vw, 3rem) 2rem;
    justify-content: flex-start;
    align-items: stretch;
    gap: 0.35rem;
    overflow-y: auto;
    overflow-x: hidden;
    overscroll-behavior: contain;
    background:
      linear-gradient(180deg, rgba(16, 23, 19, 0.98), rgba(23, 36, 27, 0.98));
    transform: translateX(0);
    transition: transform var(--transition-medium) var(--transition-smooth);
  }

  .navbar-links.active .navbar-menu {
    display: flex;
  }

  .mobile-toggle {
    display: inline-flex;
  }

  .navbar-links {
    flex: 0 0 0;
    width: 0;
    min-width: 0;
    margin-left: 0;
  }

  .navbar-brand span {
    max-width: calc(100vw - 9.75rem);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .navbar-links.active .navbar-link,
  .navbar-link {
    font-size: clamp(1.25rem, 4.5vw, 2rem);
  }

  .navbar-menu > li {
    width: 100%;
  }

  .navbar-link {
    display: flex;
    width: 100%;
    justify-content: space-between;
    padding: 0.9rem 0;
  }

  .dropdown-content {
    position: static;
    display: none;
    width: 100%;
    margin: 0.25rem 0 0.75rem;
    opacity: 1;
    transform: none;
    pointer-events: auto;
    background: rgba(255, 250, 241, 0.08);
    border-color: rgba(255, 250, 241, 0.12);
    box-shadow: none;
  }

  .has-dropdown.open .dropdown-content,
  .has-dropdown:focus-within .dropdown-content {
    display: block;
  }

  .dropdown-content li a {
    color: rgba(255, 250, 241, 0.82);
    font-size: 1rem;
  }

  .dropdown-content li a:hover {
    background: rgba(255, 250, 241, 0.12);
  }

  .content-flex,
  .content-flex.reverse,
  .alternating-item,
  .alternating-item:nth-child(odd) .alternating-item__image {
    display: grid !important;
    grid-template-columns: 1fr !important;
    order: initial !important;
  }

  .pillars-left {
    height: auto;
  }

  .pillar-item {
    opacity: 1;
  }

  .pillar-image {
    display: block !important;
    height: min(430px, 62vw) !important;
    margin-top: 1rem !important;
  }

  .footer-content {
    text-align: left;
  }

  .footer-brand p {
    margin: 0;
  }
}

@media (max-width: 768px) {
  .container {
    width: min(100% - 1.25rem, 100%);
  }

  .section,
  .partners-section,
  .orb-section {
    padding-block: clamp(3rem, 11vw, 4.5rem);
  }

  .hero {
    min-height: 560px !important;
  }

  .hero-subpage {
    min-height: 410px !important;
    padding-top: calc(var(--nav-height) + 3.25rem) !important;
    padding-bottom: 3.75rem !important;
  }

  .hero-headline,
  .hero-subpage h1 {
    font-size: clamp(2.65rem, 14vw, 4.2rem) !important;
  }

  .typing-container {
    width: min(100%, 22rem);
    justify-content: center;
    padding: 0.65rem 1rem;
    font-size: clamp(1.35rem, 8vw, 2rem);
  }

  .hero-video-controls {
    left: 1rem;
    right: auto !important;
  }

  .news-grid,
  .proof-grid,
  .team-grid,
  .projects-grid {
    grid-template-columns: 1fr !important;
    gap: 1rem !important;
  }

  .news-card,
  .challenge-card,
  .proof-card,
  .chart-card,
  .researcher-card,
  .pi-profile {
    border-radius: 0.9rem !important;
    box-shadow: 0 6px 18px rgba(16, 23, 19, 0.06) !important;
  }

  .news-card:is(:hover, :focus-within),
  .challenge-card:hover,
  .researcher-card:hover,
  .pi-profile:hover,
  .partner-logo-link:hover,
  .proof-card:hover {
    transform: none;
    box-shadow: 0 8px 22px rgba(16, 23, 19, 0.08) !important;
  }

  .news-image-wrapper {
    height: clamp(128px, 36vw, 160px) !important;
  }

  .news-card-content {
    padding: 1rem !important;
  }

  .news-card-content h3 {
    font-size: clamp(1.05rem, 5.2vw, 1.32rem);
    line-height: 1.18;
  }

  .news-card-content p,
  .news-card-meta {
    font-size: 0.96rem !important;
    line-height: 1.55;
  }

  .tag {
    width: fit-content;
    max-width: 100%;
    border-color: transparent;
    background: rgba(36, 84, 58, 0.08);
    color: var(--color-primary);
    padding: 0.28rem 0.65rem;
  }

  .chart-section {
    padding: 1.15rem 0.7rem !important;
    border-radius: 1rem !important;
    background: rgba(255, 250, 241, 0.9) !important;
    box-shadow: 0 6px 18px rgba(16, 23, 19, 0.06);
  }

  .chart-section .section-header {
    margin-bottom: 1.25rem !important;
  }

  .chart-section .section-header h2 {
    font-size: clamp(1.65rem, 8vw, 2.1rem) !important;
  }

  .chart-section .section-header p {
    font-size: 1rem !important;
    line-height: 1.55;
  }

  .chart-card {
    padding: 1rem 0.35rem !important;
    background: rgba(255, 253, 247, 0.92) !important;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
  }

  .chart-card h3 {
    padding-inline: 0.65rem;
    font-size: 1rem !important;
  }

  #yieldChart,
  #productivityChart,
  #photosynthesisChart {
    min-height: 340px;
    overflow: visible;
  }

  .pi-profile {
    padding: 1.35rem !important;
  }

  .researcher-card {
    padding: 1.35rem !important;
  }

  .schools-row {
    display: grid !important;
    grid-template-columns: 1fr;
    gap: 0.75rem;
    text-align: left !important;
  }

  .school-item {
    padding: 0 !important;
  }

  .chart-controls,
  .control-group,
  .filters,
  .irrigation-toggle {
    width: 100%;
  }

  .control-group,
  .filters {
    align-items: stretch;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.55rem;
  }

  .filter-btn,
  .toggle-btn,
  .control-group .toggle-btn {
    flex: 1 1 auto;
    min-height: 42px;
    padding-inline: 0.8rem !important;
  }

  .control-group .toggle-btn {
    flex-basis: min(100%, 8rem);
  }

  .legend-container {
    position: absolute;
    inset: auto 1rem 1rem 1rem;
    min-width: 0;
    max-height: 42%;
    overflow-y: auto;
  }

  .three-hint {
    display: none;
  }

  .scaling-diagram-wrapper {
    justify-content: flex-start !important;
    padding-inline: 0.5rem !important;
  }

  .scaling-diagram-container {
    min-width: 560px;
  }
}

@media (max-width: 430px) {
  .navbar-container {
    width: min(100% - 1rem, 100%);
  }

  .navbar-brand {
    gap: 0.55rem;
  }

  .navbar-brand span {
    max-width: calc(100vw - 8.75rem);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .mobile-toggle {
    width: 42px;
    height: 42px;
  }

  .hero {
    min-height: 500px !important;
  }

  .hero-subpage {
    min-height: 360px !important;
    padding-top: calc(var(--nav-height) + 2.75rem) !important;
    padding-bottom: 3rem !important;
  }

  .news-card-content,
  .chart-card,
  .proof-card,
  .challenge-card {
    padding: 1.1rem !important;
  }

  .filters .filter-btn {
    flex-basis: calc(50% - 0.5rem);
  }
}

/* ==========================================================================
   Mobile Viewing System Overhaul
   This layer intentionally overrides legacy page CSS and inconsistent nav DOM
   order so every page behaves as one mobile-first interface.
   ========================================================================== */
@media (max-width: 992px) {
  :root {
    --nav-height: 4.25rem;
    --mobile-gutter: clamp(0.875rem, 4vw, 1.25rem);
    --mobile-surface: #fffdf7;
    --mobile-line: rgba(20, 31, 24, 0.11);
  }

  html,
  body {
    width: 100%;
    max-width: 100%;
    overflow-x: clip;
  }

  body {
    background: #f7f4ed !important;
    font-size: 1rem;
    line-height: 1.62;
  }

  body[data-nav-open="true"] {
    overflow: hidden !important;
    touch-action: none;
  }

  .navbar {
    position: sticky !important;
    top: 0;
    min-height: var(--nav-height);
    padding: 0 !important;
    background: rgba(18, 28, 22, 0.96) !important;
    border-bottom: 1px solid rgba(255, 250, 241, 0.12) !important;
    box-shadow: 0 8px 22px rgba(16, 23, 19, 0.12) !important;
  }

  .navbar-container {
    width: 100% !important;
    max-width: none !important;
    min-height: var(--nav-height);
    padding-inline: var(--mobile-gutter) !important;
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) auto !important;
    grid-template-areas: "brand toggle" !important;
    align-items: center !important;
    gap: 0.75rem !important;
  }

  .navbar-brand {
    grid-area: brand !important;
    min-width: 0 !important;
    max-width: 100% !important;
    gap: 0.65rem !important;
    overflow: hidden;
    color: #fffaf1 !important;
    font-size: clamp(0.86rem, 3.6vw, 1rem) !important;
    line-height: 1.05;
    letter-spacing: 0 !important;
  }

  .navbar-brand img {
    width: 42px !important;
    height: 42px !important;
    min-width: 42px !important;
    object-fit: contain;
  }

  .navbar-brand span {
    display: block;
    min-width: 0;
    max-width: 100% !important;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .mobile-toggle {
    grid-area: toggle !important;
    justify-self: end !important;
    display: inline-grid !important;
    place-items: center;
    width: 46px !important;
    height: 46px !important;
    margin: 0 !important;
    border-radius: 999px !important;
    border: 1px solid rgba(255, 250, 241, 0.2) !important;
    background: rgba(255, 250, 241, 0.08) !important;
    color: #fffaf1 !important;
    box-shadow: none !important;
    z-index: 1003;
  }

  .mobile-toggle::before {
    content: "\2630";
    font-size: 1.35rem;
    line-height: 1;
  }

  body[data-nav-open="true"] .mobile-toggle::before {
    content: "\00d7";
    font-size: 1.75rem;
  }

  .mobile-toggle i {
    display: none !important;
  }

  .navbar-links {
    grid-area: brand / brand / toggle / toggle !important;
    width: 0 !important;
    height: 0 !important;
    min-width: 0 !important;
    overflow: visible !important;
    pointer-events: none;
  }

  .navbar-links.active {
    pointer-events: auto;
  }

  .navbar-menu {
    position: fixed !important;
    inset: var(--nav-height) 0 0 0 !important;
    width: 100vw !important;
    max-width: 100vw !important;
    height: calc(100dvh - var(--nav-height)) !important;
    max-height: calc(100dvh - var(--nav-height)) !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: flex-start !important;
    align-items: stretch !important;
    gap: 0 !important;
    padding: 1rem var(--mobile-gutter) calc(1.25rem + env(safe-area-inset-bottom, 0px)) !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
    overscroll-behavior: contain;
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-0.5rem);
    background:
      linear-gradient(180deg, rgba(18, 28, 22, 0.99), rgba(22, 35, 26, 0.99)) !important;
    transition:
      opacity 180ms ease,
      transform 180ms ease,
      visibility 0s linear 180ms;
    z-index: 1001;
  }

  .navbar-links.active .navbar-menu {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
    transition:
      opacity 180ms ease,
      transform 180ms ease,
      visibility 0s;
  }

  .navbar-menu > li {
    width: 100% !important;
    border-bottom: 1px solid rgba(255, 250, 241, 0.1);
  }

  .navbar-link,
  .navbar-menu > li > a {
    min-height: 3.5rem;
    display: flex !important;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0.95rem 0 !important;
    color: rgba(255, 250, 241, 0.88) !important;
    font-size: clamp(1.08rem, 5vw, 1.42rem) !important;
    font-weight: 750 !important;
    line-height: 1.15;
    letter-spacing: 0 !important;
  }

  .has-dropdown > .navbar-link::before {
    content: "+";
    order: 2;
    font-size: 1.4rem;
    font-weight: 500;
    opacity: 0.72;
  }

  .has-dropdown.open > .navbar-link::before {
    content: "\2013";
  }

  .navbar-link::after {
    display: none !important;
  }

  .dropdown-content {
    position: static !important;
    display: grid !important;
    grid-template-rows: 0fr;
    width: 100% !important;
    min-width: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    opacity: 1 !important;
    overflow: hidden;
    pointer-events: auto;
    transform: none !important;
    border: 0 !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    background: transparent !important;
    transition: grid-template-rows 180ms ease;
  }

  .dropdown-content > li {
    overflow: hidden;
  }

  .has-dropdown.open .dropdown-content,
  .has-dropdown:focus-within .dropdown-content {
    grid-template-rows: 1fr;
    padding-bottom: 0.65rem !important;
  }

  .dropdown-content li a {
    min-height: 2.75rem;
    padding: 0.7rem 0.9rem !important;
    border-radius: 0.7rem !important;
    color: rgba(255, 250, 241, 0.76) !important;
    background: rgba(255, 250, 241, 0.055);
    font-size: 0.98rem !important;
    line-height: 1.25;
  }

  .dropdown-content li + li a {
    margin-top: 0.45rem;
  }

  .dropdown-content li a:hover,
  .dropdown-content li a:focus-visible {
    color: #fffaf1 !important;
    background: rgba(255, 250, 241, 0.11) !important;
  }

  .hero {
    min-height: clamp(500px, calc(100svh - var(--nav-height)), 620px) !important;
    padding: calc(var(--nav-height) + 2.75rem) var(--mobile-gutter) 3rem !important;
  }

  .hero-subpage {
    min-height: clamp(330px, 50svh, 430px) !important;
    padding: calc(var(--nav-height) + 2.3rem) var(--mobile-gutter) 2.75rem !important;
  }

  .hero-headline,
  .hero-subpage h1 {
    max-width: 100%;
    font-size: clamp(2.35rem, 12vw, 3.65rem) !important;
    line-height: 0.98 !important;
    overflow-wrap: anywhere;
  }

  .hero-subheadline,
  .subtitle {
    font-size: 1rem !important;
    line-height: 1.55 !important;
  }

  .container,
  .page-content > .container,
  main > .container {
    width: min(100% - calc(var(--mobile-gutter) * 2), 100%) !important;
  }

  .section,
  .page-content,
  .partners-section,
  .orb-section,
  .cta-section {
    padding-block: clamp(2.75rem, 10vw, 4.25rem) !important;
  }

  .content-flex,
  .content-flex.reverse,
  .content-grid,
  .alternating-item {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) !important;
    gap: 1.2rem !important;
    margin-block: 2rem !important;
    padding-top: 0 !important;
  }

  .content-text,
  .content-image,
  .alternating-item__text,
  .alternating-item__image {
    min-width: 0 !important;
    width: 100% !important;
  }

  .content-image img,
  .alternating-item__image img,
  .researcher-video-wrapper,
  .pillar-image,
  #map,
  #agrivoltaics-container {
    border-radius: 0.9rem !important;
    box-shadow: 0 8px 22px rgba(16, 23, 19, 0.08) !important;
  }

  .news-grid,
  .proof-grid,
  .team-grid,
  .projects-grid,
  .charts-grid {
    display: grid !important;
    grid-template-columns: minmax(0, 1fr) !important;
    gap: 1rem !important;
  }

  .news-card,
  .challenge-card,
  .proof-card,
  .chart-card,
  .researcher-card,
  .pi-profile,
  .table-container {
    width: 100% !important;
    min-width: 0 !important;
    border-radius: 0.9rem !important;
    background: var(--mobile-surface) !important;
    border: 1px solid var(--mobile-line) !important;
    box-shadow: 0 6px 18px rgba(16, 23, 19, 0.055) !important;
  }

  .news-card:is(:hover, :focus-within),
  .challenge-card:hover,
  .researcher-card:hover,
  .pi-profile:hover,
  .proof-card:hover {
    transform: none !important;
    box-shadow: 0 6px 18px rgba(16, 23, 19, 0.055) !important;
  }

  .news-image-wrapper {
    height: clamp(124px, 34vw, 158px) !important;
  }

  .news-card-content,
  .proof-card,
  .challenge-card,
  .researcher-card {
    padding: 1rem !important;
  }

  .news-card-content h3,
  .researcher-card h4,
  .pi-details h3 {
    font-size: clamp(1.05rem, 5.3vw, 1.32rem) !important;
    line-height: 1.18 !important;
  }

  .news-card-content p,
  .news-card-meta,
  .researcher-description,
  .pi-description,
  .content-text p,
  .text-block p {
    font-size: 0.98rem !important;
    line-height: 1.58 !important;
  }

  .tag {
    width: fit-content;
    max-width: 100%;
    padding: 0.26rem 0.62rem !important;
    border: 0 !important;
    background: rgba(36, 84, 58, 0.08) !important;
    color: var(--color-primary) !important;
  }

  .filter-btn,
  .toggle-btn,
  .control-group .toggle-btn,
  .cta-button,
  .btn,
  .popup-link {
    min-height: 44px !important;
    padding: 0.72rem 0.9rem !important;
    border-radius: 999px !important;
    box-shadow: none !important;
  }

  .filter-btn.active,
  .toggle-btn.active,
  .control-group .toggle-btn.active {
    background: var(--color-secondary) !important;
    color: #fffaf1 !important;
  }

  .filters,
  .chart-controls,
  .irrigation-toggle {
    display: flex !important;
    width: 100% !important;
    flex-wrap: wrap !important;
    gap: 0.55rem !important;
  }

  .filters .filter-btn,
  .irrigation-toggle .toggle-btn,
  .control-group .toggle-btn {
    flex: 1 1 calc(50% - 0.55rem) !important;
  }

  .chart-section {
    width: 100% !important;
    margin-inline: 0 !important;
    padding: 1rem 0.65rem !important;
    border-radius: 1rem !important;
    background: rgba(255, 253, 247, 0.92) !important;
    overflow: hidden !important;
    scroll-margin-top: calc(var(--nav-height) + 1rem);
  }

  .chart-section .section-header {
    margin-bottom: 1rem !important;
  }

  .chart-section .section-header h2 {
    font-size: clamp(1.55rem, 7.5vw, 2rem) !important;
    line-height: 1.08 !important;
  }

  .chart-card {
    padding: 0.9rem 0.25rem !important;
    overflow-x: auto !important;
    overflow-y: hidden !important;
    -webkit-overflow-scrolling: touch;
  }

  .chart-card h3 {
    padding-inline: 0.65rem;
    font-size: 1rem !important;
    line-height: 1.2 !important;
  }

  #yieldChart,
  #productivityChart,
  #photosynthesisChart,
  .apexcharts-canvas,
  .apexcharts-svg {
    max-width: 100% !important;
    min-width: 0 !important;
  }

  #yieldChart,
  #productivityChart,
  #photosynthesisChart {
    min-height: 340px;
  }

  .apexcharts-text,
  .apexcharts-text tspan {
    fill: #4d594f !important;
  }

  .apexcharts-legend-text {
    color: #243528 !important;
  }

  .table-container,
  .scaling-diagram-wrapper {
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch;
  }

  .project-table {
    min-width: 640px;
  }

  #map {
    height: min(62vh, 520px) !important;
    min-height: 360px !important;
  }

  #agrivoltaics-container {
    height: min(72vh, 560px) !important;
    min-height: 420px !important;
  }
}

@media (max-width: 430px) {
  .navbar-container {
    padding-inline: 0.75rem !important;
  }

  .navbar-brand img {
    width: 38px !important;
    height: 38px !important;
    min-width: 38px !important;
  }

  .mobile-toggle {
    width: 42px !important;
    height: 42px !important;
  }

  .navbar-brand span {
    max-width: calc(100vw - 8.5rem) !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}