/* ============================================================
   Adaptation Forest — forest.css
   Page-specific styles for forest.html
   ============================================================ */

/* ============================================================
   Page Nav
   ============================================================ */
.page-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: 2rem;
  background: rgba(10, 10, 8, 0.94);
  border-bottom: 1px solid var(--clr-border);
  backdrop-filter: blur(20px) saturate(1.1);
  -webkit-backdrop-filter: blur(20px) saturate(1.1);
}

.page-nav__back {
  font-family: var(--ff-body);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--clr-lichen);
  transition: color var(--dur) var(--ease-out);
}

.page-nav__back:hover { color: var(--clr-amber); }

.page-nav__logo {
  font-family: var(--ff-display);
  font-size: 0.98rem;
  font-weight: 400;
  color: var(--clr-birch);
  letter-spacing: 0.04em;
  transition: color var(--dur) var(--ease-out);
}

.page-nav__logo:hover { color: var(--clr-amber); }

/* ============================================================
   Page Header
   ============================================================ */
.page-header {
  padding-top: 10rem;
  padding-bottom: 6rem;
  padding-inline: 2rem;
  background: linear-gradient(170deg, var(--clr-humus) 0%, #0c1209 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 50% at 50% 0%, rgba(45, 74, 45, 0.20) 0%, transparent 70%);
  pointer-events: none;
}

.page-header .container { position: relative; z-index: 1; }

.page-eyebrow {
  font-family: var(--ff-body);
  font-size: 0.68rem;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--clr-amber);
  margin-bottom: 1.4rem;
  opacity: 0.8;
}

.page-title {
  font-family: var(--ff-display);
  font-size: clamp(4.5rem, 10vw, 9rem);
  font-weight: 400;
  line-height: 0.95;
  color: var(--clr-birch);
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
}

.page-title em { color: #9fc49f; }

.page-subtitle {
  font-family: var(--ff-body);
  font-size: clamp(0.95rem, 1.8vw, 1.1rem);
  font-style: italic;
  color: var(--clr-lichen);
  max-width: 480px;
  margin-inline: auto;
}

/* ============================================================
   Page Sections
   ============================================================ */
.page-section {
  padding-block: 7rem 8rem;
  background: linear-gradient(180deg, #0c1209 0%, var(--clr-humus) 100%);
}

.page-section--field {
  background: var(--clr-surface);
  background-image: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 28px,
    rgba(138, 145, 122, 0.022) 28px,
    rgba(138, 145, 122, 0.022) 29px
  );
}

/* Section heading label */
.field-label {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  font-family: var(--ff-body);
  font-size: 0.68rem;
  letter-spacing: 0.45em;
  text-transform: uppercase;
  color: var(--clr-lichen);
  opacity: 0.5;
  margin-bottom: 3rem;
}

.field-label::after {
  content: '';
  flex: 1;
  max-width: 72px;
  height: 1px;
  background: var(--clr-lichen);
  opacity: 0.3;
}

/* ============================================================
   Prose Column
   ============================================================ */
.prose-column {
  max-width: 700px;
  margin-inline: auto;
  margin-bottom: 5rem;
}

.prose-column .section-lead {
  font-family: var(--ff-body);
  font-size: 1.1rem;
  font-style: italic;
  color: rgba(232, 228, 220, 0.88);
  line-height: 1.75;
  margin-bottom: 1.8rem;
}

.prose-column p {
  font-family: var(--ff-body);
  font-size: 0.96rem;
  color: rgba(232, 228, 220, 0.72);
  line-height: 1.92;
  margin-bottom: 1.4rem;
}

/* ============================================================
   Elevation Diagram
   ============================================================ */
.elevation-diagram {
  position: relative;
  max-width: 920px;
  margin-inline: auto;
}

.elevation-diagram__labels {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  padding-inline: 0.5rem;
}

.elevation-diagram__labels span {
  font-family: var(--ff-body);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--clr-lichen);
  opacity: 0.4;
}

.elevation-svg {
  width: 100%;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.2;
  color: var(--clr-moss-mid);
  overflow: visible;
}

/* ============================================================
   Species Grid
   ============================================================ */
.species-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-block: 3rem 3rem;
}

/* ============================================================
   Species Card
   ============================================================ */
.species-card {
  background: rgba(10, 10, 8, 0.6);
  border: 1px solid var(--clr-border);
  border-radius: 2px;
  cursor: pointer;
  transition:
    border-color var(--dur) var(--ease-out),
    background var(--dur) var(--ease-out);
  overflow: hidden;
}

.species-card:hover {
  border-color: rgba(138, 145, 122, 0.3);
  background: rgba(15, 15, 12, 0.85);
}

.species-card.is-expanded {
  border-color: rgba(196, 136, 58, 0.38);
}

.species-card__header {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  padding: 1.15rem 1.15rem 1rem;
  position: relative;
}

/* Leaf illustration */
.species-card__leaf {
  flex-shrink: 0;
  width: 42px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 2px;
}

.leaf-svg {
  width: 42px;
  height: auto;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1;
  color: var(--clr-moss-mid);
  overflow: visible;
  transition: color var(--dur) var(--ease-out);
}

.species-card.is-expanded .leaf-svg {
  color: rgba(196, 136, 58, 0.7);
}

/* Card meta */
.species-card__meta {
  flex: 1;
  min-width: 0;
}

.species-name {
  font-family: var(--ff-display);
  font-size: 1.08rem;
  font-weight: 400;
  color: var(--clr-birch);
  line-height: 1.2;
  margin-bottom: 0.1rem;
}

.species-latin {
  font-family: var(--ff-body);
  font-size: 0.66rem;
  font-style: italic;
  color: var(--clr-lichen);
  opacity: 0.6;
  margin-bottom: 0.55rem;
}

.species-stats-row {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 0.55rem;
}

.species-pct {
  font-family: var(--ff-display);
  font-size: 1.45rem;
  color: var(--clr-amber);
  line-height: 1;
}

/* Adaptation rating badge */
.adapt-rating {
  font-family: var(--ff-body);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 1px;
  border: 1px solid currentColor;
  line-height: 1.5;
}

.adapt-rating--good    { color: #7aab84;          border-color: rgba(122, 171, 132, 0.38); }
.adapt-rating--fair    { color: var(--clr-amber);  border-color: rgba(196, 136, 58, 0.38);  }
.adapt-rating--poor    { color: var(--clr-cardinal);border-color: rgba(139, 37, 0, 0.4);    }

/* Vulnerability icons */
.vuln-icons {
  display: flex;
  gap: 0.35rem;
  align-items: center;
}

.vuln-icon {
  width: 15px;
  height: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.vuln-icon svg {
  width: 13px;
  height: 13px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.3;
}

.vuln-icon--active { color: var(--clr-cardinal); opacity: 0.9; }
.vuln-icon--dim    { color: var(--clr-lichen);   opacity: 0.2; }

/* Toggle button */
.species-card__toggle {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  background: none;
  border: 1px solid var(--clr-border);
  border-radius: 1px;
  color: var(--clr-lichen);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    color var(--dur) var(--ease-out),
    border-color var(--dur) var(--ease-out),
    transform var(--dur) var(--ease-out);
}

.species-card.is-expanded .species-card__toggle {
  color: var(--clr-amber);
  border-color: rgba(196, 136, 58, 0.4);
  transform: rotate(45deg);
}

/* Expandable body */
.species-card__body {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  padding-inline: 1.15rem;
  padding-block: 0;
  transition:
    max-height 0.55s var(--ease-out),
    opacity 0.4s var(--ease-out),
    padding 0.35s var(--ease-out),
    border-top-color 0.35s var(--ease-out);
  border-top: 1px solid transparent;
}

.species-card.is-expanded .species-card__body {
  max-height: 700px;
  opacity: 1;
  padding-top: 1.15rem;
  padding-bottom: 1.4rem;
  border-top-color: var(--clr-border);
}

.species-card__body p {
  font-family: var(--ff-body);
  font-size: 0.875rem;
  color: rgba(232, 228, 220, 0.66);
  line-height: 1.88;
  margin-bottom: 0.85rem;
}

.species-card__body p:last-child { margin-bottom: 0; }

/* ============================================================
   Species section note
   ============================================================ */
.species-note {
  font-family: var(--ff-body);
  font-size: 0.88rem;
  font-style: italic;
  color: var(--clr-lichen);
  text-align: center;
  max-width: 520px;
  margin-inline: auto;
  padding-top: 2.2rem;
  border-top: 1px solid var(--clr-border);
  line-height: 1.7;
}

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

@media (max-width: 768px) {
  .page-header { padding-top: 7rem; padding-bottom: 4.5rem; }
  .page-section { padding-block: 5rem 6rem; }
  .species-grid { grid-template-columns: 1fr; }
  .elevation-diagram__labels { display: none; }
}

@media (max-width: 480px) {
  .page-nav { padding-inline: 1.25rem; }
  .page-nav__logo { display: none; }
}

/* ============================================================
   Climate Adaptation Strategies
   ============================================================ */
.strategies-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: start;
}

.strategy-card {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.strategy-illustration {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--clr-border);
  padding-bottom: 1.5rem;
}

.strategy-svg {
  width: 100%;
  max-width: 200px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.2;
  color: var(--clr-moss-mid);
  overflow: visible;
}

.strategy-body { display: flex; flex-direction: column; gap: 0.6rem; }

.strategy-label {
  font-family: var(--ff-display);
  font-size: 1.6rem;
  font-weight: 400;
  color: var(--clr-birch);
  line-height: 1.1;
}

.strategy-quote {
  font-family: var(--ff-body);
  font-size: 0.85rem;
  font-style: italic;
  color: var(--clr-amber);
  opacity: 0.85;
  margin-bottom: 0.4rem;
  line-height: 1.55;
}

.strategy-body p {
  font-family: var(--ff-body);
  font-size: 0.875rem;
  color: rgba(232, 228, 220, 0.68);
  line-height: 1.9;
  margin-bottom: 0.75rem;
}

/* ============================================================
   Threats
   ============================================================ */
.threats-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.threat-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 2rem;
  align-items: start;
  padding-block: 2.8rem;
  border-bottom: 1px solid var(--clr-border);
}

.threat-item:first-child { border-top: 1px solid var(--clr-border); }

.threat-icon-wrap {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 2px;
}

.threat-icon-svg {
  width: 52px;
  height: 52px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.2;
  color: var(--clr-lichen);
  opacity: 0.65;
}

.threat-name {
  font-family: var(--ff-display);
  font-size: 1.35rem;
  font-weight: 400;
  color: var(--clr-birch);
  margin-bottom: 0.9rem;
  line-height: 1.2;
}

.threat-text p {
  font-family: var(--ff-body);
  font-size: 0.9rem;
  color: rgba(232, 228, 220, 0.7);
  line-height: 1.88;
  margin-bottom: 0.85rem;
}

.threat-text p:last-child { margin-bottom: 0; }

/* ============================================================
   Carbon
   ============================================================ */
.carbon-viz {
  margin-block: 1rem 3rem;
}

.carbon-stages {
  width: 100%;
  overflow: hidden;
}

.carbon-stages-svg {
  width: 100%;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.2;
  color: var(--clr-moss-mid);
  overflow: visible;
}

.carbon-stage-labels {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1.8rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--clr-border);
}

.carbon-stage-label {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 1.2rem;
  border: 1px solid var(--clr-border);
  border-radius: 2px;
}

.carbon-stage-label--active {
  border-color: rgba(196, 136, 58, 0.3);
  background: rgba(196, 136, 58, 0.04);
}

.carbon-stage-num {
  font-family: var(--ff-display);
  font-size: clamp(2rem, 3.5vw, 3.2rem);
  color: var(--clr-lichen);
  line-height: 1;
  font-weight: 400;
}

.carbon-stage-label--active .carbon-stage-num {
  color: var(--clr-amber);
}

.carbon-stage-unit {
  font-family: var(--ff-body);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-lichen);
  opacity: 0.5;
  margin-bottom: 0.5rem;
}

.carbon-stage-name {
  font-family: var(--ff-body);
  font-size: 0.82rem;
  color: var(--clr-birch);
  opacity: 0.75;
  line-height: 1.3;
}

.carbon-stage-desc {
  font-family: var(--ff-body);
  font-size: 0.75rem;
  color: var(--clr-lichen);
  opacity: 0.55;
  line-height: 1.55;
  margin-top: 0.2rem;
}

.carbon-context {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-block: 2.5rem 0;
  padding-block: 2.5rem;
  border-block: 1px solid var(--clr-border);
}

.carbon-context-item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.carbon-context-num {
  font-family: var(--ff-display);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 400;
  color: var(--clr-amber);
  line-height: 1;
}

.carbon-context-label {
  font-family: var(--ff-body);
  font-size: 0.78rem;
  color: var(--clr-lichen);
  line-height: 1.5;
}

.carbon-close {
  margin-top: 3.5rem;
  margin-bottom: 0;
}

/* ============================================================
   Responsive additions
   ============================================================ */
@media (max-width: 1024px) {
  .strategies-grid { grid-template-columns: 1fr; gap: 4rem; }
  .strategy-card { flex-direction: row; gap: 2.5rem; }
  .strategy-illustration { width: 160px; flex-shrink: 0; border-bottom: none; border-right: 1px solid var(--clr-border); padding-bottom: 0; padding-right: 2rem; }
  .carbon-context { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .strategies-grid { gap: 3rem; }
  .strategy-card { flex-direction: column; }
  .strategy-illustration { width: 100%; border-right: none; border-bottom: 1px solid var(--clr-border); padding-right: 0; padding-bottom: 1.5rem; }
  .threat-item { grid-template-columns: 52px 1fr; gap: 1.25rem; padding-block: 2rem; }
  .carbon-stage-labels { grid-template-columns: 1fr; }
  .carbon-context { grid-template-columns: 1fr; gap: 1.5rem; }
}

@media (max-width: 480px) {
  .threat-item { grid-template-columns: 1fr; }
  .threat-icon-wrap { display: none; }
}

/* ============================================================
   Section Split — shared two-column layout
   Used by practice.html, garden.html and any future sub-page
   ============================================================ */
.section-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
  margin-top: 3rem;
}

.section-split__text {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.section-split__text p {
  font-family: var(--ff-body);
  font-size: clamp(0.9rem, 1.6vw, 1.05rem);
  color: rgba(232, 228, 220, 0.75);
  line-height: 1.9;
}

.section-split__text .section-lead {
  font-size: clamp(1rem, 1.8vw, 1.18rem);
  color: rgba(232, 228, 220, 0.9);
  font-weight: 300;
}

/* Flipped variant: SVG left, text right */
.section-split--flip {
  grid-template-columns: 1fr 1fr;
}

.section-split--flip > *:first-child { order: 1; }
.section-split--flip > *:last-child  { order: 2; }

@media (max-width: 860px) {
  .section-split {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .section-split--flip > *:first-child { order: 2; }
  .section-split--flip > *:last-child  { order: 1; }
}