/* ZemGuru modular styles 01/16. Original cascade order preserved. */
:root {
  --ink: #171b22;
  --muted: #6e737b;
  --soft: #f4f8f4;
  --soft-green: #eaf5ec;
  --line: #e1e6e2;
  --panel: #ffffff;
  --accent: #247338;
  --accent-hover: #1e5f30;
  --accent-2: #2e8b42;
  --accent-soft: rgba(36, 115, 56, .14);
  --accent-border: rgba(36, 115, 56, .35);
  --accent-dark: #0b1b1d;
  --accent-soft-light: #eaf5ec;
  --green: var(--accent);
  --green-dark: var(--accent-dark);
  --green-2: var(--accent-2);
  --amber: #f3a322;
  --blue: #2e78d6;
  --red: #e34c4c;
  --violet: #6b5ce7;
  --bg: #f7f8f7;
  --shadow: 0 18px 42px rgba(20, 36, 28, .07);
  --radius: 8px;
}

body[data-accent="green"] {
  --accent: #247338;
  --accent-hover: #1e5f30;
  --accent-2: #2e8b42;
  --accent-soft: rgba(36, 115, 56, .14);
  --accent-border: rgba(36, 115, 56, .35);
  --accent-dark: #0b1b1d;
  --accent-soft-light: #eaf5ec;
}

body[data-accent="luna"] {
  --accent: #54ACBF;
  --accent-hover: #26658C;
  --accent-2: #26658C;
  --accent-soft: rgba(84, 172, 191, .16);
  --accent-border: rgba(84, 172, 191, .38);
  --accent-dark: #023859;
  --accent-soft-light: #A7EBF2;
  --soft-green: #edf8fa;
}

body[data-accent="night"] {
  --accent: #5B8BC4;
  --accent-hover: #2E4A6E;
  --accent-2: #2E4A6E;
  --accent-soft: rgba(91, 139, 196, .16);
  --accent-border: rgba(91, 139, 196, .38);
  --accent-dark: #1A2940;
  --accent-soft-light: #A8C5E8;
  --soft-green: #eef3fa;
}

body[data-accent="graphite"] {
  --accent: #6B747C;
  --accent-hover: #434B52;
  --accent-2: #434B52;
  --accent-soft: rgba(107, 116, 124, .14);
  --accent-border: rgba(107, 116, 124, .34);
  --accent-dark: #2A3036;
  --accent-soft-light: #E8EAED;
  --soft-green: #f2f3f4;
}

body[data-accent="sand"] {
  --accent: #C4A574;
  --accent-hover: #8B6F47;
  --accent-2: #A68452;
  --accent-soft: rgba(196, 165, 116, .16);
  --accent-border: rgba(196, 165, 116, .38);
  --accent-dark: #5C4A32;
  --accent-soft-light: #F5EDE0;
  --soft-green: #faf6ef;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  letter-spacing: 0;
}

button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
img { max-width: 100%; display: block; }

.landing {
  --landing-earth: #0d1812;
  --landing-earth-2: #14251c;
  --landing-earth-card: rgba(10, 24, 17, .48);
  --landing-earth-card-hover: rgba(14, 32, 22, .62);
  --landing-earth-border: rgba(143, 217, 160, .32);
  --landing-glass-highlight: rgba(255, 255, 255, .1);
  --landing-glow: rgba(143, 217, 160, .24);
  --landing-text: #f2fbf4;
  --landing-muted: rgba(214, 230, 218, .82);
  min-height: 100vh;
  color: var(--landing-text);
  background: var(--landing-earth);
  overflow-x: clip;
}

.landing.landing-reduced-motion *,
.landing.landing-reduced-motion *::before,
.landing.landing-reduced-motion *::after {
  animation-duration: 0.01ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: 0.01ms !important;
}

@media (prefers-reduced-motion: reduce) {
  .landing *,
  .landing *::before,
  .landing *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

.landing-atmosphere {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
}

.landing-atmosphere-body {
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: .55;
}

.landing-depth-fog {
  position: absolute;
  inset: -10%;
  background:
    radial-gradient(circle at 18% 24%, rgba(143, 217, 160, .14), transparent 34%),
    radial-gradient(circle at 82% 72%, rgba(56, 115, 56, .16), transparent 38%),
    linear-gradient(180deg, rgba(8, 16, 12, .12), rgba(8, 16, 12, .42));
}

.landing-god-rays {
  position: absolute;
  inset: -28% -12%;
  background:
    conic-gradient(from 208deg at 74% -4%, rgba(255, 232, 170, .42) 0deg, transparent 24deg, transparent 360deg),
    linear-gradient(118deg, rgba(255, 236, 190, .24) 6%, transparent 38%),
    linear-gradient(138deg, rgba(180, 255, 200, .12) 0%, transparent 48%);
  mix-blend-mode: screen;
  filter: blur(8px);
  animation: landing-rays-shift 16s ease-in-out infinite alternate;
}

@keyframes landing-rays-shift {
  from { transform: translate3d(-1.5%, 0, 0) rotate(-1deg); opacity: .82; }
  to { transform: translate3d(1.5%, 1%, 0) rotate(1deg); opacity: 1; }
}

.landing-light-wash {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 70% 12%, rgba(255, 220, 150, .18), transparent 42%);
  mix-blend-mode: soft-light;
}

.landing-vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, transparent 42%, rgba(4, 10, 8, .58) 100%);
}

.landing-sparks {
  position: absolute;
  inset: 0;
}

.landing-spark {
  position: absolute;
  left: var(--spark-left);
  top: var(--spark-top);
  width: var(--spark-size);
  height: var(--spark-size);
  border-radius: 50%;
  background: #b8f5c7;
  box-shadow: 0 0 14px rgba(184, 245, 199, .85);
  animation: landing-spark-float 5.5s ease-in-out infinite;
  animation-delay: var(--spark-delay);
  opacity: .75;
}

@keyframes landing-spark-float {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); opacity: .45; }
  50% { transform: translate3d(0, -16px, 0) scale(1.25); opacity: .95; }
}

.landing-hero-layer {
  position: relative;
  z-index: 2;
}

.landing-hero-wrap {
  position: relative;
  overflow: hidden;
  min-height: min(100vh, 920px);
  background:
    linear-gradient(180deg, rgba(18, 28, 16, .22) 0%, rgba(12, 22, 16, .58) 55%, rgba(10, 18, 14, .82) 100%),
    var(--hero) center/cover;
  background-size: cover;
  color: #fff;
  animation: landing-hero-pan 30s ease-in-out infinite alternate;
}

@keyframes landing-hero-pan {
  from { background-position: center 44%; background-size: 104% auto; }
  to { background-position: center 56%; background-size: 111% auto; }
}

.landing-hero-item {
  animation: landing-fade-up .85s cubic-bezier(.22, 1, .36, 1) both;
}

.landing-hero-content > :nth-child(1) { animation-delay: .04s; }
.landing-hero-content > :nth-child(2) { animation-delay: .12s; }
.landing-hero-content > :nth-child(3) { animation-delay: .2s; }
.landing-hero-content > :nth-child(4) { animation-delay: .28s; }
.landing-hero-content > :nth-child(5) { animation-delay: .36s; }
.landing-hero-content > :nth-child(6) { animation-delay: .44s; }

@keyframes landing-fade-up {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.landing-hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 820px;
  margin-top: 28px;
}

.landing-stat {
  padding: 16px 18px;
  border-radius: calc(var(--radius) + 2px);
  background: linear-gradient(145deg, rgba(255, 255, 255, .1), rgba(10, 24, 17, .42));
  border: 1px solid rgba(143, 217, 160, .28);
  box-shadow:
    0 16px 40px rgba(0, 0, 0, .24),
    0 0 24px rgba(143, 217, 160, .12),
    inset 0 1px 0 rgba(255, 255, 255, .12);
  backdrop-filter: blur(14px) saturate(1.2);
  transition: transform .25s ease, background .25s ease, box-shadow .25s ease;
}

.landing-stat:hover {
  transform: translateY(-4px);
  background: linear-gradient(145deg, rgba(255, 255, 255, .14), rgba(14, 32, 22, .52));
  box-shadow:
    0 22px 48px rgba(0, 0, 0, .28),
    0 0 32px rgba(143, 217, 160, .2),
    inset 0 1px 0 rgba(255, 255, 255, .16);
}

.landing-stat strong {
  display: block;
  margin-bottom: 4px;
  font-size: 28px;
  line-height: 1;
  color: #fff;
}

.landing-stat span {
  font-size: 13px;
  line-height: 1.4;
  color: rgba(255, 255, 255, .78);
}

.landing-ticker {
  overflow: hidden;
  background: linear-gradient(90deg, var(--accent-dark), color-mix(in srgb, var(--accent-dark) 80%, var(--accent)));
  border-block: 1px solid rgba(255, 255, 255, .08);
}

.landing-ticker-track {
  display: flex;
  width: max-content;
  gap: 0;
  padding: 13px 0;
  animation: landing-ticker-scroll 48s linear infinite;
}

.landing-ticker-track span {
  position: relative;
  padding: 0 30px;
  white-space: nowrap;
  font-size: 14px;
  font-weight: 600;
  color: rgba(255, 255, 255, .9);
}

.landing-ticker-track span::after {
  content: "◆";
  position: absolute;
  right: -4px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 8px;
  color: rgba(255, 255, 255, .35);
}

@keyframes landing-ticker-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.landing-reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity .7s cubic-bezier(.22, 1, .36, 1) var(--reveal-delay, 0s),
    transform .7s cubic-bezier(.22, 1, .36, 1) var(--reveal-delay, 0s);
}

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

.landing-section-lead {
  max-width: 720px;
  margin: 10px 0 0;
  font-size: 17px;
  line-height: 1.6;
  color: var(--landing-muted);
}

.landing-prose-wide {
  max-width: 860px;
}

.landing-topic-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.landing-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.landing-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: 20px;
  border-radius: var(--radius);
  transition: transform .22s ease, border-color .22s ease;
}

.landing-step:hover {
  transform: translateX(4px);
  border-color: rgba(118, 190, 132, .42);
}

.landing-step-marker {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 800;
}

.landing-step strong {
  display: block;
  margin-bottom: 6px;
  font-size: 17px;
  line-height: 1.25;
}

.landing-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
}

.landing-path-journey {
  display: grid;
  gap: 22px;
}

.landing-path-map-stage {
  position: relative;
  min-height: clamp(280px, 42vw, 430px);
  border-radius: calc(var(--radius) + 6px);
  overflow: hidden;
  border: 1px solid var(--landing-earth-border);
  box-shadow: 0 28px 60px rgba(0, 0, 0, .32);
  background: #0f1a15;
}

.landing-path-map-bg {
  position: absolute;
  inset: -8%;
  background:
    linear-gradient(180deg, rgba(10, 20, 15, .48), rgba(10, 20, 15, .78)),
    var(--map-img) center/cover;
  animation: landing-path-map-drift 24s ease-in-out infinite alternate;
}

@keyframes landing-path-map-drift {
  from { transform: scale(1.04) translate3d(-1.2%, 0, 0); }
  to { transform: scale(1.1) translate3d(1.2%, -1.5%, 0); }
}

.landing-path-map-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(143, 217, 160, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(143, 217, 160, .08) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), rgba(0, 0, 0, .45));
  pointer-events: none;
}

.landing-path-route-svg {
  position: relative;
  z-index: 2;
  display: block;
  width: 100%;
  height: 100%;
  min-height: clamp(280px, 42vw, 430px);
}

.landing-path-route-shadow,
.landing-path-route-base,
.landing-path-route-progress {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.landing-path-route-shadow {
  stroke: rgba(0, 0, 0, .38);
  stroke-width: 10;
  vector-effect: non-scaling-stroke;
}

.landing-path-route-base {
  stroke: rgba(143, 217, 160, .28);
  stroke-width: 5;
  stroke-dasharray: 10 12;
  vector-effect: non-scaling-stroke;
}

.landing-path-route-progress {
  stroke: #8fd9a0;
  stroke-width: 5;
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  filter: drop-shadow(0 0 8px rgba(143, 217, 160, .45));
  vector-effect: non-scaling-stroke;
}

#landing-path:not(.is-playing) .landing-path-pin-pulse {
  animation-play-state: paused;
}

.landing-path-pin-pulse {
  fill: rgba(143, 217, 160, .18);
  transform-box: fill-box;
  transform-origin: center;
  opacity: 0;
}

.landing-path-pin.is-route-active .landing-path-pin-pulse {
  opacity: 1;
  animation: landing-path-pin-pulse 1.1s ease-out infinite;
}

@keyframes landing-path-pin-pulse {
  0% { transform: scale(.5); opacity: .9; }
  75% { transform: scale(1.45); opacity: 0; }
  100% { transform: scale(1.45); opacity: 0; }
}

.landing-path-pin-dot {
  fill: #1d5c34;
  stroke: #fff;
  stroke-width: 3;
  transform-box: fill-box;
  transform-origin: center;
  transition: transform .22s ease, stroke .22s ease, fill .22s ease;
}

.landing-path-pin.is-route-active .landing-path-pin-dot {
  transform: scale(1.28);
  stroke: #8fd9a0;
  stroke-width: 4;
}

.landing-path-pin-start .landing-path-pin-dot {
  fill: #247338;
}

.landing-path-pin-end .landing-path-pin-dot {
  fill: #2e8b42;
}

.landing-path-pin-label {
  fill: #fff;
  font-size: 12px;
  font-weight: 800;
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
  pointer-events: none;
}

.landing-path-traveler-halo {
  fill: rgba(143, 217, 160, .22);
  stroke: rgba(143, 217, 160, .5);
  stroke-width: 2;
}

.landing-path-traveler-core {
  fill: #8fd9a0;
  stroke: #fff;
  stroke-width: 3;
  filter: drop-shadow(0 0 10px rgba(143, 217, 160, .65));
}

.landing-path-map-legend {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 16px;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(8, 16, 12, .72);
  border: 1px solid rgba(255, 255, 255, .12);
  backdrop-filter: blur(6px);
}

.landing-path-legend-point {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .9);
  white-space: nowrap;
}

.landing-path-legend-a::before,
.landing-path-legend-b::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 8px;
  border-radius: 50%;
  vertical-align: -1px;
}

.landing-path-legend-a::before {
  background: #247338;
  box-shadow: 0 0 0 2px #fff;
}

.landing-path-legend-b::before {
  background: #8fd9a0;
  box-shadow: 0 0 0 2px #fff;
}

.landing-path-legend-line {
  flex: 1;
  height: 2px;
  background: linear-gradient(90deg, #247338, #8fd9a0);
  opacity: .85;
}

.landing-path-stops-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.landing-path-stop-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: start;
  padding: 18px;
  border-radius: var(--radius);
  background: var(--landing-earth-card);
  border: 1px solid var(--landing-earth-border);
  box-shadow: 0 14px 32px rgba(0, 0, 0, .18);
  transition: transform .24s ease, border-color .24s ease, background .24s ease, box-shadow .24s ease;
}

.landing-path-stop-card:hover {
  transform: translateY(-2px);
  border-color: rgba(118, 190, 132, .42);
  background: var(--landing-earth-card-hover);
}

.landing-path-stop-card.is-route-active {
  transform: scale(1.045);
  border-color: rgba(143, 217, 160, .72);
  background: linear-gradient(180deg, rgba(36, 115, 56, .22), rgba(14, 28, 21, .94));
  box-shadow:
    0 22px 44px rgba(56, 140, 78, .26),
    0 0 0 1px rgba(143, 217, 160, .18) inset;
  z-index: 1;
}

.landing-path-stop-card.is-route-active .landing-path-stop-num {
  background: rgba(143, 217, 160, .24);
  color: #d7f5de;
  transform: scale(1.08);
}

.landing-path-stop-num {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 11px;
  background: rgba(56, 140, 78, .18);
  color: #8fd9a0;
  font-size: 15px;
  font-weight: 800;
  transition: transform .24s ease, background .24s ease, color .24s ease;
}

.landing-path-stop-card strong {
  display: block;
  margin-bottom: 6px;
  font-size: 16px;
  line-height: 1.25;
  color: var(--landing-text);
}

.landing-path-stop-card.is-route-active strong {
  color: #f2fbf4;
}

.landing-path-stop-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
  color: var(--landing-muted);
}

.landing-path-stop-card.is-route-active p {
  color: rgba(226, 240, 230, .9);
}

.landing-insight-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.landing-insight {
  padding: 22px;
  border-radius: var(--radius);
  transition: transform .22s ease;
}

.landing-insight:hover {
  transform: translateY(-3px);
}

.landing-insight strong {
  display: block;
  margin-bottom: 8px;
  font-size: 17px;
}

.landing-insight p {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
}

.landing-card {
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease, background .22s ease;
}

.landing-card:hover {
  transform: translateY(-3px);
  border-color: rgba(118, 190, 132, .42);
  background: var(--landing-earth-card-hover);
}

.landing-cta-inner {
  position: relative;
  overflow: hidden;
  animation: landing-cta-glow 8s ease-in-out infinite alternate;
}

.landing-cta-inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(8, 18, 14, .82), rgba(12, 28, 20, .78)),
    var(--scene-mountains) center/cover;
  opacity: .42;
  z-index: 0;
}

.landing-cta-inner > * {
  position: relative;
  z-index: 1;
}

@keyframes landing-cta-glow {
  from { box-shadow: 0 18px 48px rgba(11, 27, 29, .18); }
  to { box-shadow: 0 22px 56px rgba(36, 115, 56, .22); }
}

@media (prefers-reduced-motion: reduce) {
  .landing-hero-wrap,
  .landing-ticker-track,
  .landing-cta-inner,
  .landing-hero-item,
  .landing-about-visual,
  .landing-nature-panel,
  .landing-path-map-bg,
  .landing-god-rays,
  .landing-spark {
    animation: none !important;
  }

  [data-landing-parallax] {
    transform: none !important;
  }

  #landing-path.is-playing .landing-path-stop-card {
    animation: none;
  }

  .landing-path-stop-card.is-route-active {
    transform: none;
  }

  .landing-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

.landing-hero-wrap header,
.landing-hero-wrap .hero {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
}

.landing-hero-wrap header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 0;
}

.landing-tagline {
  display: inline-block;
  margin: 0 0 16px;
  padding: 8px 14px;
  border-radius: 999px;
  background: linear-gradient(145deg, rgba(255, 255, 255, .12), rgba(10, 24, 17, .38));
  border: 1px solid rgba(143, 217, 160, .32);
  box-shadow: 0 0 24px rgba(143, 217, 160, .14);
  backdrop-filter: blur(12px);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .02em;
  color: rgba(255, 255, 255, .94);
}

.hero-lead {
  max-width: 720px;
  margin: 0 0 28px;
  font-size: clamp(17px, 2.2vw, 20px);
  line-height: 1.6;
  color: rgba(255, 255, 255, .9);
}

.landing-author-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  align-items: start;
  max-width: 820px;
  margin: 0 0 30px;
  padding: 20px 22px;
  border-radius: calc(var(--radius) + 4px);
  background: linear-gradient(145deg, rgba(255, 255, 255, .11), rgba(10, 24, 17, .46));
  border: 1px solid rgba(143, 217, 160, .34);
  box-shadow:
    0 24px 56px rgba(0, 0, 0, .28),
    0 0 36px rgba(143, 217, 160, .14),
    inset 0 1px 0 rgba(255, 255, 255, .14);
  backdrop-filter: blur(18px) saturate(1.25);
}

.landing-author-avatar {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border-radius: 18px;
  background: linear-gradient(145deg, #38a84c, #154c2b);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: .04em;
  color: #fff;
  box-shadow: inset 0 -8px 16px rgba(0, 0, 0, .16);
}

.landing-author-card strong {
  display: block;
  margin-bottom: 4px;
  font-size: 20px;
  color: #fff;
}

.landing-author-card > div > span {
  display: block;
  margin-bottom: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, .78);
}

.landing-author-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
  color: rgba(255, 255, 255, .86);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.landing-btn-ghost {
  color: #fff !important;
  border-color: rgba(255, 255, 255, .28) !important;
  background: rgba(255, 255, 255, .06) !important;
}

.landing-btn-ghost:hover {
  background: rgba(255, 255, 255, .12) !important;
}

.landing-nature-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  min-height: 240px;
}

.landing-nature-panel {
  position: relative;
  min-height: 240px;
  margin: 0;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(8, 16, 12, .15), rgba(8, 16, 12, .82)),
    var(--nature-img) center/cover;
  transition: background-size .6s ease;
  background-size: 108% auto;
}

.landing-nature-panel:hover {
  background-size: 115% auto;
}

.landing-nature-panel figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 18px 20px;
  font-size: 14px;
  line-height: 1.45;
  font-weight: 600;
  color: rgba(255, 255, 255, .92);
  background: linear-gradient(0deg, rgba(6, 14, 10, .88), transparent);
}

.landing-body {
  position: relative;
  background:
    linear-gradient(180deg, rgba(14, 24, 18, .94), rgba(10, 18, 14, .98)),
    radial-gradient(circle at 20% 10%, rgba(255, 210, 140, .08), transparent 36%),
    radial-gradient(circle at 80% 88%, rgba(56, 110, 72, .12), transparent 34%);
}

.landing-body > .landing-section,
.landing-body > .landing-atmosphere + .landing-section {
  position: relative;
  z-index: 2;
}

.landing-body::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 12% 18%, rgba(56, 110, 72, .18), transparent 34%),
    radial-gradient(circle at 88% 72%, rgba(36, 78, 52, .16), transparent 30%);
  pointer-events: none;
}

.landing-about-split {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, .9fr);
  gap: 28px;
  align-items: stretch;
}

.landing-about-visual {
  position: relative;
  min-height: 420px;
  border-radius: calc(var(--radius) + 6px);
  overflow: hidden;
  border: 1px solid rgba(143, 217, 160, .34);
  background:
    linear-gradient(180deg, rgba(8, 16, 12, .08), rgba(8, 16, 12, .72)),
    var(--scene-visual) center/cover;
  box-shadow:
    0 28px 64px rgba(0, 0, 0, .34),
    0 0 36px rgba(143, 217, 160, .16);
  animation: landing-visual-breathe 18s ease-in-out infinite alternate;
}

@keyframes landing-visual-breathe {
  from { background-size: 108% auto; background-position: center 42%; }
  to { background-size: 116% auto; background-position: center 58%; }
}

.landing-visual-badge {
  position: absolute;
  left: 18px;
  bottom: 18px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(8, 16, 12, .72);
  border: 1px solid rgba(255, 255, 255, .14);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .9);
}

.landing-section-alt::before {
  content: "";
  position: absolute;
  inset: 0;
  left: 50%;
  width: 100vw;
  transform: translateX(-50%);
  background:
    linear-gradient(180deg, rgba(10, 22, 16, .86), rgba(12, 26, 19, .82)),
    var(--section-scene, var(--scene-forest)) center/cover;
  z-index: 0;
}

.landing-section-scene-forest { --section-scene: var(--scene-forest); }
.landing-section-scene-mountains { --section-scene: var(--scene-mountains); }
.landing-section-scene-land { --section-scene: var(--scene-land); }
.landing-section-scene-hills { --section-scene: var(--scene-hills); }

.landing-section-scene-land::after,
.landing-section-scene-mountains::after {
  content: "";
  position: absolute;
  inset: 0;
  left: 50%;
  width: 100vw;
  transform: translateX(-50%);
  background:
    linear-gradient(90deg, rgba(12, 22, 17, .94), rgba(12, 22, 17, .72)),
    var(--section-scene) center/cover;
  opacity: .22;
  z-index: 0;
  pointer-events: none;
}

.landing-section {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 64px 0;
}

.landing-section-alt {
  position: relative;
}

.landing-section-alt > * {
  position: relative;
  z-index: 1;
}

.landing-section-head {
  margin-bottom: 24px;
}

.landing-section-head h2 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--landing-text);
}

.landing-prose {
  max-width: 760px;
}

.landing-prose p {
  margin: 0 0 16px;
  font-size: 17px;
  line-height: 1.65;
  color: var(--landing-muted);
}

.landing-prose p:last-child {
  margin-bottom: 0;
}

.landing-checklist {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px 18px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.landing-checklist li {
  position: relative;
  padding-left: 22px;
  font-size: 16px;
  line-height: 1.45;
  color: var(--landing-text);
}

.landing-topic-num {
  position: absolute;
  left: 18px;
  top: 20px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
  color: #8fd9a0;
}

.landing-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .55em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.landing-card-grid {
  display: grid;
  gap: 16px;
}

.landing-card-grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.landing-feature-grid {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.landing-topic-card {
  position: relative;
  min-height: 0;
  padding: 0;
  overflow: hidden;
  border-radius: calc(var(--radius) + 2px);
  background: var(--landing-earth-card);
  border: 1px solid var(--landing-earth-border);
  box-shadow: 0 18px 42px rgba(0, 0, 0, .22);
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}

.landing-topic-card:hover {
  transform: translateY(-4px);
  border-color: rgba(118, 190, 132, .42);
  box-shadow: 0 22px 48px rgba(0, 0, 0, .28);
}

.landing-topic-visual {
  height: 132px;
  background:
    linear-gradient(180deg, rgba(8, 16, 12, .04), rgba(8, 16, 12, .72)),
    var(--topic-visual) center/cover;
  transition: transform .45s ease;
}

.landing-topic-card:hover .landing-topic-visual {
  transform: scale(1.05);
}

.landing-topic-body {
  position: relative;
  padding: 20px 22px 22px 58px;
}

.landing-topic-card h3,
.landing-card h3,
.landing-feature-card h3,
.landing-step strong,
.landing-insight strong {
  color: var(--landing-text);
  margin: 0 0 10px;
  font-size: 18px;
  line-height: 1.25;
}

.landing-topic-card p,
.landing-card p,
.landing-feature-card p,
.landing-step p,
.landing-insight p {
  color: var(--landing-muted);
}

.landing-card,
.landing-feature-card,
.landing-step,
.landing-insight,
.landing-topic-card,
.landing-audience-card,
.landing-path-stop-card {
  background: linear-gradient(155deg, rgba(255, 255, 255, .1), var(--landing-earth-card));
  border: 1px solid var(--landing-earth-border);
  box-shadow:
    0 22px 50px rgba(0, 0, 0, .28),
    0 0 28px var(--landing-glow),
    inset 0 1px 0 var(--landing-glass-highlight);
  backdrop-filter: blur(16px) saturate(1.22);
}

.landing-path-map-stage {
  border: 1px solid rgba(143, 217, 160, .34);
  box-shadow:
    0 28px 60px rgba(0, 0, 0, .32),
    0 0 36px rgba(143, 217, 160, .14);
}

.landing-audience-card {
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: 0;
  overflow: hidden;
}

.landing-audience-visual {
  flex: 0 0 112px;
  height: 112px;
  background:
    linear-gradient(180deg, rgba(8, 16, 12, .08), rgba(8, 16, 12, .72)),
    var(--card-visual) center/cover;
  transition: transform .45s ease;
}

.landing-audience-card:hover .landing-audience-visual {
  transform: scale(1.04);
}

.landing-audience-body {
  padding: 20px 22px 22px;
}

.landing-audience-body h3 {
  margin: 0 0 10px;
}

.landing-audience-body p {
  margin: 0;
}

.landing-insight {
  background: linear-gradient(180deg, rgba(143, 217, 160, .14), rgba(10, 24, 17, .52));
}

.landing-card:hover,
.landing-feature-card:hover,
.landing-topic-card:hover,
.landing-audience-card:hover,
.landing-step:hover {
  border-color: rgba(143, 217, 160, .52);
  box-shadow:
    0 28px 60px rgba(0, 0, 0, .32),
    0 0 40px rgba(143, 217, 160, .26),
    inset 0 1px 0 rgba(255, 255, 255, .16);
}

.landing-feature-icon,
.landing-step-marker {
  background: rgba(56, 140, 78, .18);
  color: #8fd9a0;
}

.landing-card,
.landing-feature-card {
  min-height: 132px;
  padding: 22px;
  border-radius: var(--radius);
  text-align: left;
}

.landing-feature-card {
  display: grid;
  gap: 8px;
  width: 100%;
  appearance: none;
  font: inherit;
  color: inherit;
  cursor: pointer;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.landing-feature-card:hover {
  transform: translateY(-2px);
  border-color: rgba(118, 190, 132, .42);
  box-shadow: 0 18px 42px rgba(0, 0, 0, .28);
  background: var(--landing-earth-card-hover);
}

.landing-card:hover {
  background: var(--landing-earth-card-hover);
}

.landing-feature-icon {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 18px;
  transition: transform .25s ease;
}

.landing-feature-card:hover .landing-feature-icon {
  transform: scale(1.08) rotate(-4deg);
}

.landing-cta {
  padding-bottom: 80px;
}

.landing-cta-inner {
  padding: 42px 28px;
  border-radius: calc(var(--radius) + 6px);
  background: linear-gradient(145deg, rgba(255, 255, 255, .08), rgba(10, 28, 18, .72));
  border: 1px solid rgba(143, 217, 160, .34);
  color: #fff;
  text-align: center;
  box-shadow:
    0 28px 64px rgba(0, 0, 0, .34),
    0 0 42px rgba(143, 217, 160, .18);
  backdrop-filter: blur(14px) saturate(1.2);
}

.landing-cta-inner h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 4vw, 38px);
  line-height: 1.15;
  color: #fff;
}

.landing-cta-inner p {
  max-width: 640px;
  margin: 0 auto 24px;
  font-size: 17px;
  line-height: 1.6;
  color: rgba(255, 255, 255, .86);
}

.landing-cta-actions {
  justify-content: center;
}

.landing-btn-ghost-light {
  color: #fff !important;
  border-color: rgba(255, 255, 255, .28) !important;
  background: rgba(255, 255, 255, .08) !important;
}

@media (max-width: 1024px) {
  .landing-card-grid-4,
  .landing-topic-grid,
  .landing-insight-grid,
  .landing-path-stops-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .landing-checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .landing-hero-wrap header {
    flex-direction: column;
    align-items: flex-start;
  }

  .landing-hero-wrap .nav-links {
    width: 100%;
  }

  .landing-author-card {
    grid-template-columns: 1fr;
  }

  .landing-about-split {
    grid-template-columns: 1fr;
  }

  .landing-about-visual {
    min-height: 260px;
  }

  .landing-nature-strip {
    grid-template-columns: 1fr;
  }

  .landing-nature-panel {
    min-height: 180px;
  }

  .landing-section {
    padding: 48px 0;
  }

  .landing-card-grid-4,
  .landing-checklist,
  .landing-topic-grid,
  .landing-steps,
  .landing-path-stops-list,
  .landing-insight-grid,
  .landing-hero-stats {
    grid-template-columns: 1fr;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  position: relative;
  width: 54px;
  height: 54px;
  border-radius: 16px 16px 22px 22px;
  background: linear-gradient(145deg, #38a84c, #154c2b);
  box-shadow: inset 0 -10px 18px rgba(0,0,0,.18);
  overflow: hidden;
}

.brand-mark::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 10px;
  width: 28px;
  height: 18px;
  background: #f7faf8;
  clip-path: polygon(0 100%, 30% 30%, 54% 58%, 75% 0, 100% 100%);
}

.brand-mark .ridge {
  position: absolute;
  left: 5px;
  right: 5px;
  bottom: 10px;
  height: 16px;
  border: 3px solid rgba(5, 30, 14, .72);
  border-top: 0;
  border-radius: 0 0 32px 32px;
  transform: rotate(10deg);
}

.brand-mark .leaf {
  position: absolute;
  right: 8px;
  bottom: 7px;
  width: 20px;
  height: 10px;
  background: #7bd36f;
  border-radius: 20px 0 20px 0;
  transform: rotate(-8deg);
}

.brand-text {
  display: grid;
  line-height: 1;
}

.brand-text small {
  font-size: 12px;
  letter-spacing: 1.8px;
  color: rgba(255,255,255,.9);
}

.brand-text strong {
  font-size: 34px;
  letter-spacing: 0;
  color: #fff;
}

.brand-text em {
  font-style: normal;
  color: #45b854;
  font-size: 15px;
  justify-self: end;
}

.nav-links, .row-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.nav-links button {
  border: 0;
  background: transparent;
  color: #fff;
}

.hero {
  min-height: 70vh;
  display: grid;
  align-content: center;
  padding: 42px 0 86px;
}

.landing-hero-wrap .hero h1 {
  max-width: 820px;
  margin: 0 0 18px;
  font-size: clamp(32px, 4.8vw, 56px);
  line-height: 1.08;
}

.hero h1 {
  max-width: 780px;
  margin: 0 0 18px;
  font-size: clamp(40px, 6vw, 76px);
  line-height: 1.02;
}

.hero p {
  max-width: 690px;
  margin: 0 0 28px;
  font-size: 20px;
  line-height: 1.55;
  color: rgba(255,255,255,.9);
}

.public-section {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-bottom: 40px;
}

.public-card {
  min-height: 132px;
  padding: 22px;
  border-radius: var(--radius);
  background: rgba(255,255,255,.94);
  color: var(--ink);
}

.btn {
  min-height: 42px;
  border: 1px solid transparent;
  border-radius: 7px;
  padding: 10px 18px;
  background: linear-gradient(color-mix(in srgb, var(--accent-2) 88%, white), var(--accent));
  color: #fff;
  font-weight: 700;
  box-shadow: 0 1px 0 rgba(255,255,255,.14) inset;
}

.btn.secondary {
  background: #fff;
  color: var(--green);
  border-color: var(--line);
  box-shadow: none;
}

.btn.ghost {
  background: transparent;
  color: var(--green);
  border-color: var(--line);
  box-shadow: none;
}

.btn.dark {
  background: rgba(8, 17, 18, .72);
  border-color: rgba(255,255,255,.32);
}

.btn.full { width: 100%; justify-content: center; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.link-btn, .section-title button, .link-wide {
  border: 0;
  background: transparent;
  color: var(--green);
  font-weight: 700;
}

.link-wide {
  width: 100%;
  padding: 12px;
  border-top: 1px solid var(--line);
}

.login-panel {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 50;
  padding: 20px;
  background: rgba(6, 19, 18, .68);
}

.login-card {
  width: min(460px, 100%);
  padding: 26px;
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  box-shadow: var(--shadow);
}

.field {
  display: grid;
  gap: 7px;
  margin: 13px 0;
}

.field label {
  color: #303944;
  font-weight: 700;
  font-size: 13px;
}

.field input, .field select, .field textarea, .search, .top-search input, .filters input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
  color: var(--ink);
  padding: 11px 13px;
}

.field textarea { min-height: 94px; resize: vertical; }

.course-modal .field.field-invalid label,
.lesson-modal .field.field-invalid label {
  color: #b42318;
}

.course-modal .field.field-invalid input,
.course-modal .field.field-invalid select,
.course-modal .field.field-invalid textarea,
.lesson-modal .field.field-invalid input,
.lesson-modal .field.field-invalid select,
.lesson-modal .field.field-invalid textarea {
  border-color: #d92d20;
  box-shadow: 0 0 0 1px rgba(217, 45, 32, 0.12);
}

.course-modal .field-error-note,
.lesson-modal .field-error-note,
.topic-modal .field-error-note {
  display: block;
  margin-top: 4px;
  color: #b42318;
  font-size: 12px;
}

body[data-theme="dark"] .course-modal .field.field-invalid label,
body[data-theme="dark"] .course-modal .field-error-note,
body[data-theme="dark"] .lesson-modal .field.field-invalid label,
body[data-theme="dark"] .lesson-modal .field-error-note,
body[data-theme="dark"] .topic-modal .field.field-invalid label,
body[data-theme="dark"] .topic-modal .field-error-note,
body[data-theme="dark"] .topic-form-error-note {
  color: #ff8a80;
}

body[data-theme="dark"] .course-modal .field.field-invalid input,
body[data-theme="dark"] .course-modal .field.field-invalid select,
body[data-theme="dark"] .course-modal .field.field-invalid textarea,
body[data-theme="dark"] .lesson-modal .field.field-invalid input,
body[data-theme="dark"] .lesson-modal .field.field-invalid select,
body[data-theme="dark"] .lesson-modal .field.field-invalid textarea,
body[data-theme="dark"] .topic-modal .field.field-invalid input,
body[data-theme="dark"] .topic-modal .field.field-invalid select,
body[data-theme="dark"] .topic-modal .field.field-invalid textarea {
  border-color: rgba(255, 138, 128, 0.72);
  box-shadow: 0 0 0 1px rgba(255, 138, 128, 0.18);
}

.shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 270px minmax(0, 1fr);
}

.shell.compact-sidebar {
  grid-template-columns: 88px minmax(0, 1fr);
}

.shell.compact-sidebar .sidebar {
  padding: 18px 10px;
}

.shell.compact-sidebar .brand-text,
.shell.compact-sidebar .role-switch,
.shell.compact-sidebar .help-card {
  display: none;
}

.shell.compact-sidebar .brand {
  margin-bottom: 8px;
}

.shell.compact-sidebar .menu button {
  grid-template-columns: 1fr;
  justify-items: center;
  padding: 12px 8px;
}

.shell.compact-sidebar .menu button span:not(.icon),
.shell.compact-sidebar .menu-dot {
  display: none;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 18px;
  overflow: auto;
  padding: 22px 14px 18px;
  background:
    radial-gradient(circle at 65% 8%, rgba(43, 130, 65, .22), transparent 26%),
    linear-gradient(180deg, #071315, #0b1b1e 56%, #071214);
  color: #edf5ef;
}

.sidebar .brand {
  justify-content: center;
  margin: 0 4px 6px;
}

.role-switch { padding: 0 8px; }
.role-switch select {
  width: 100%;
  border: 1px solid rgba(255,255,255,.14);
  border-radius: 7px;
  color: #dce9df;
  background: rgba(255,255,255,.06);
  padding: 9px 10px;
}

.role-note {
  display: block;
  margin-top: 8px;
  color: rgba(255,255,255,.62);
  font-size: 12px;
}

.role-switch-locked {
  display: grid;
  gap: 6px;
}

.role-badge {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,.1);
  color: #eef6f0;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .02em;
}

.login-error {
  margin: 0 0 12px;
  padding: 10px 12px;
  border-radius: 8px;
  background: #fff1f0;
  color: #9f2d1f;
  font-size: 13px;
  font-weight: 700;
}

.login-hints {
  display: grid;
  gap: 4px;
  margin: 8px 0 14px;
  padding: 12px;
  border-radius: 10px;
  background: #f6faf7;
  font-size: 13px;
}

.login-hints p {
  margin: 0;
}