/* ============================================
   BIRCHLINE — Birch Forest Website
   ============================================ */

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

:root {
  --white: #faf9f7;
  --off-white: #f5f3ef;
  --light-grey: #e8e5e0;
  --mid-grey: #b8b3ab;
  --dark-grey: #6b6560;
  --charcoal: #3a3632;
  --near-black: #2a2725;
  --blue-accent: #7d95aa;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Jost', 'Inter', -apple-system, sans-serif;

  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: #fff;
  color: var(--charcoal);
  overflow: auto;
}

/* ---- Preloader ---- */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.preloader-inner {
  text-align: center;
}

.preloader-line {
  width: 60px;
  height: 1px;
  background: var(--mid-grey);
  margin: 0 auto 20px;
  transform-origin: left;
  animation: preloaderLine 1.5s var(--ease-in-out) infinite;
}

@keyframes preloaderLine {
  0% { transform: scaleX(0); opacity: 0.3; }
  50% { transform: scaleX(1); opacity: 1; }
  100% { transform: scaleX(0); opacity: 0.3; transform-origin: right; }
}

.preloader-text {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--dark-grey);
  text-transform: uppercase;
}

/* ---- Audio Toggle ---- */
.audio-toggle {
  position: fixed;
  bottom: 28px;
  left: 28px;
  z-index: 200;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(184, 179, 171, 0.15);
  border-radius: 50%;
  color: var(--dark-grey);
  transition: all 0.3s ease;
  opacity: 0;
  pointer-events: none;
}

.audio-toggle.is-visible {
  opacity: 0.45;
  pointer-events: auto;
}

.audio-toggle.is-visible:hover {
  opacity: 1;
}

.audio-toggle:hover {
  background: rgba(255, 255, 255, 0.95);
  border-color: var(--mid-grey);
  color: var(--charcoal);
  transform: scale(1.05);
}

.audio-toggle.is-playing {
  border-color: rgba(184, 179, 171, 0.25);
}

/* ---- Mute Indicator ---- */
.audio-icon--off {
  position: relative;
}

.mute-slash {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 22px;
  height: 1.5px;
  background: var(--dark-grey);
  transform: translate(-50%, -50%) rotate(-45deg);
  border-radius: 1px;
}

/* ---- EQ Bars ---- */
.eq-bars {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 16px;
}

.eq-bars span {
  display: block;
  width: 2px;
  background: var(--dark-grey);
  border-radius: 1px;
}

/* Muted: short static bars */
.eq-bars--muted span:nth-child(1) { height: 4px; }
.eq-bars--muted span:nth-child(2) { height: 7px; }
.eq-bars--muted span:nth-child(3) { height: 4px; }

/* Playing: animated bars */
.eq-bars--playing span {
  animation: eqBounce 0.8s ease-in-out infinite alternate;
}

.eq-bars--playing span:nth-child(1) {
  height: 6px;
  animation-delay: 0s;
}

.eq-bars--playing span:nth-child(2) {
  height: 12px;
  animation-delay: 0.2s;
}

.eq-bars--playing span:nth-child(3) {
  height: 8px;
  animation-delay: 0.4s;
}

@keyframes eqBounce {
  0% { transform: scaleY(0.4); }
  100% { transform: scaleY(1); }
}

/* ---- Top Nav ---- */
.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 28px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  width: 100%;
}

.nav-logo {
  height: 65px;
  user-select: none;
}

.nav-tagline {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 300;
  letter-spacing: 0.08em;
  color: var(--dark-grey);
  border-left: 1px solid var(--mid-grey);
  padding-left: 22px;
}

/* ---- Hamburger Menu ---- */
.hamburger {
  position: fixed;
  top: 28px;
  right: 28px;
  z-index: 300;
  width: 44px;
  height: 44px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  padding: 0;
}

.hamburger-line {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--charcoal);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger.is-open .hamburger-line:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.hamburger.is-open .hamburger-line:nth-child(2) {
  opacity: 0;
}

.hamburger.is-open .hamburger-line:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

.nav-menu {
  position: fixed;
  top: 0;
  right: 0;
  z-index: 250;
  width: 280px;
  height: 100vh;
  background: rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 48px;
  transform: translateX(100%);
  transition: transform 0.4s var(--ease-out-expo);
}

.nav-menu.is-open {
  transform: translateX(0);
}

.nav-link {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--charcoal);
  text-decoration: none;
  padding: 18px 0;
  transition: color 0.3s ease, transform 0.3s ease;
  border-bottom: 1px solid var(--light-grey);
}

.nav-link:first-child {
  border-top: 1px solid var(--light-grey);
}

.nav-link:hover {
  color: var(--dark-grey);
  transform: translateX(6px);
  letter-spacing: 0.2em;
}

/* ---- Custom Cursor ---- */

/* ---- Cursor / Mycelium Canvas ---- */
.mycelium {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 9999;
  pointer-events: none;
  background: transparent;
}

/* ---- Scene ---- */
.scene {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  background: #fff;
  visibility: hidden;
}

.scene.is-ready {
  visibility: visible;
}

/* ---- Mist / Fog Layers ---- */
.mist {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  overflow: hidden;
}

.mist-layer {
  position: absolute;
  inset: 0;
  opacity: 0;
}

.mist-layer--1 {
  background: radial-gradient(
    ellipse 120% 30% at 20% 40%,
    rgba(240, 238, 235, 0.6) 0%,
    rgba(240, 238, 235, 0.2) 40%,
    transparent 70%
  );
  animation: mistDrift1 22s ease-in-out infinite alternate;
}

.mist-layer--2 {
  background: radial-gradient(
    ellipse 100% 25% at 75% 50%,
    rgba(245, 243, 240, 0.55) 0%,
    rgba(245, 243, 240, 0.15) 45%,
    transparent 70%
  );
  animation: mistDrift2 28s ease-in-out infinite alternate;
}

.mist-layer--3 {
  background: radial-gradient(
    ellipse 80% 15% at 50% 60%,
    rgba(248, 246, 243, 0.45) 0%,
    rgba(248, 246, 243, 0.1) 50%,
    transparent 70%
  );
  animation: mistDrift3 18s ease-in-out infinite alternate;
}

.mist-layer--4 {
  background: radial-gradient(
    ellipse 140% 20% at 30% 70%,
    rgba(235, 232, 228, 0.35) 0%,
    rgba(235, 232, 228, 0.1) 50%,
    transparent 70%
  );
  animation: mistDrift4 25s ease-in-out infinite alternate;
}

.mist-layer--ground {
  background: linear-gradient(
    0deg,
    rgba(245, 243, 240, 0.8) 0%,
    rgba(245, 243, 240, 0.4) 10%,
    rgba(245, 243, 240, 0.15) 22%,
    transparent 40%
  );
}

@keyframes mistDrift1 {
  0%   { transform: translateX(-6%) scaleX(1); }
  100% { transform: translateX(6%) scaleX(1.08); }
}
@keyframes mistDrift2 {
  0%   { transform: translateX(5%) scaleX(1.05); }
  100% { transform: translateX(-7%) scaleX(0.95); }
}
@keyframes mistDrift3 {
  0%   { transform: translateX(-3%) translateY(-2%); }
  100% { transform: translateX(4%) translateY(2%); }
}
@keyframes mistDrift4 {
  0%   { transform: translateX(4%) scaleX(1.02); }
  100% { transform: translateX(-5%) scaleX(0.98); }
}

/* ---- Trees (Photo-based) ---- */
.trees {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  align-items: stretch;
  justify-content: center;
  margin-left: -2%;
}

.tree {
  position: relative;
  flex: 1;
  outline: none;
  display: flex;
  align-items: stretch;
  justify-content: center;
  opacity: 0;
  padding-top: 5%;
}

.tree--left {
  padding-left: 3%;
}

.tree--left .tree-label {
  left: calc(50% + 8px);
}

.tree--middle {
  padding-top: 0%;
}

.tree-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: bottom;
  user-select: none;
  pointer-events: auto;
  transition: transform 0.8s var(--ease-out-expo), filter 0.6s ease;
  mask-image: linear-gradient(to bottom, black 70%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 70%, transparent 100%);
}

/* Subtle forward motion on hover */
.tree.is-hovered .tree-img,
.tree:focus-visible .tree-img {
  transform: scale(1.06) translateY(-8px);
  filter: brightness(0.97) contrast(1.05);
}

/* Glow */
.tree-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 50% 60% at 50% 45%,
    rgba(255, 255, 255, 0.2) 0%,
    transparent 70%
  );
  opacity: 0;
  transition: opacity 0.6s ease;
  pointer-events: none;
  z-index: 2;
}

.tree.is-hovered .tree-glow,
.tree:focus-visible .tree-glow {
  opacity: 1;
}

/* Labels — below each tree */
.tree-label {
  position: absolute;
  bottom: 6%;
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  z-index: 5;
  pointer-events: none;
  text-align: center;
  opacity: 0;
  transition: opacity 0.4s ease, transform 0.4s var(--ease-out-expo);
}

.tree-label-text {
  display: block;
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--charcoal);
  white-space: nowrap;
  padding: 10px 24px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--charcoal);
}

.tree.is-hovered .tree-label,
.tree:focus-visible .tree-label {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}


/* ---- Mobile Single Tree ---- */
.mobile-tree {
  display: none;
}

/* ---- Scroll hint (hidden by default, shown via media queries) ---- */
.mobile-scroll-hint {
  display: none;
}

/* ---- Back to top ---- */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 200;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(184, 179, 171, 0.15);
  border-radius: 50%;
  color: var(--dark-grey);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.back-to-top.is-visible {
  opacity: 0.45;
  pointer-events: auto;
}

.back-to-top.is-visible:hover {
  opacity: 1;
}

.back-to-top:hover {
  background: rgba(255, 255, 255, 0.7);
  transform: scale(1.05);
}

.back-to-top:active {
  transform: scale(0.92);
}

/* ---- Scroll Hint ---- */
.scroll-hint {
  position: absolute;
  bottom: 4%;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  z-index: 10;
  pointer-events: none;
}

.scroll-hint span {
  display: block;
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--dark-grey);
  opacity: 0.5;
  margin-bottom: 8px;
}

.scroll-hint-dots {
  display: flex;
  gap: 6px;
  justify-content: center;
}

.scroll-hint-dots span {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--mid-grey);
  opacity: 0.4;
  animation: dotPulse 2s ease-in-out infinite;
}

.scroll-hint-dots span:nth-child(2) { animation-delay: 0.3s; }
.scroll-hint-dots span:nth-child(3) { animation-delay: 0.6s; }

@keyframes dotPulse {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.3); }
}

/* ---- Sections Container ---- */
.sections {
  position: relative;
  z-index: 50;
  pointer-events: auto;
  opacity: 1;
  overflow: visible;
}

/* ---- Section Transitions ---- */
.section-transition {
  position: relative;
  height: 150px;
  pointer-events: none;
  overflow: hidden;
}

.section-transition::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('images/Textures/BirchBark.png');
  background-size: 400px;
  background-repeat: repeat;
  opacity: 0.06;
}

.section-transition--forest-services {
  background: linear-gradient(to bottom, #fff 0%, var(--off-white) 100%);
}

.section-transition--services-about {
  background: linear-gradient(to bottom, var(--off-white) 0%, #fff 50%, var(--off-white) 100%);
}

.section-transition--about-contact {
  background: linear-gradient(to bottom, var(--off-white) 0%, var(--light-grey) 50%, var(--off-white) 100%);
}

/* ---- Base Section ---- */
.section {
  position: relative;
  overflow: hidden;
}

.section-label {
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  font-weight: 300;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--charcoal);
  margin-bottom: 18px;
  display: block;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.5vw, 1.8rem);
  font-weight: 300;
  color: var(--charcoal);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0;
}

/* ---- Decorative Birch Trees ---- */
.section-deco {
  position: absolute;
  z-index: 0;
  pointer-events: none;
  user-select: none;
  height: 110%;
  width: auto;
  top: -5%;
  object-fit: contain;
  will-change: transform;
}

.section-deco--services {
  right: -2%;
  opacity: 0.04;
}

.section-deco--about {
  left: -2%;
  opacity: 0.035;
}

.section-deco--contact {
  right: -2%;
  opacity: 0.03;
}

/* ---- Scroll Reveal ---- */
[data-reveal] {
  opacity: 0;
  transform: translateY(40px);
}

[data-reveal].is-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Back Button (hidden — continuous scroll) ---- */
.back-btn {
  display: none !important;
}

/* ===========================================
   SERVICES / "The Work"
   =========================================== */
.section--services {
  background: var(--off-white);
  padding-bottom: clamp(60px, 8vh, 100px);
}

/* Texture wash */
.section--services::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('images/Textures/BirchBark.png');
  background-size: 400px;
  background-repeat: repeat;
  opacity: 0.03;
  pointer-events: none;
}

.services-hero {
  position: relative;
  z-index: 1;
  padding: clamp(80px, 10vh, 140px) clamp(48px, 8vw, 120px) clamp(50px, 6vh, 80px);
}

.services-hero .section-label {
  margin-bottom: 28px;
}

.services-hero-text {
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  font-weight: 300;
  line-height: 1.4;
  color: var(--charcoal);
  letter-spacing: -0.01em;
  max-width: 900px;
}

/* 2x2 Services Grid */
.services-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 clamp(48px, 8vw, 120px);
}

.services-item {
  padding: clamp(32px, 4vh, 56px) clamp(28px, 3vw, 48px);
  border-bottom: 1px solid var(--light-grey);
  border-right: 1px solid var(--light-grey);
  transition: background 0.3s ease;
}

.services-item:nth-child(2n) {
  border-right: none;
}

.services-item:nth-child(n+3) {
  border-bottom: none;
}

.services-item:hover {
  background: rgba(255, 255, 255, 0.5);
}

.services-item-num {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 300;
  color: var(--light-grey);
  line-height: 1;
  margin-bottom: 20px;
  display: block;
}

.services-item-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--charcoal);
  margin-bottom: 12px;
}

.services-item-desc {
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--dark-grey);
  font-weight: 300;
  max-width: 400px;
}

/* Philosophy quote */
.services-philosophy {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: clamp(60px, 8vh, 100px) clamp(48px, 8vw, 120px) 0;
  max-width: 700px;
  margin: 0 auto;
}

.services-philosophy-label {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--mid-grey);
  margin-bottom: 24px;
  display: block;
}

.services-philosophy-quote {
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  font-weight: 300;
  font-style: italic;
  line-height: 1.75;
  color: var(--charcoal);
  letter-spacing: 0.01em;
}

/* ===========================================
   ABOUT / "Our Roots"
   =========================================== */
.section--about {
  background: var(--off-white);
  padding: clamp(80px, 10vh, 140px) clamp(48px, 8vw, 120px);
}

/* Texture wash */
.section--about::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('images/Textures/BirchTreesLinedUp.png');
  background-size: 600px;
  background-repeat: repeat;
  opacity: 0.03;
  pointer-events: none;
}

.about-header {
  position: relative;
  z-index: 1;
  margin-bottom: 40px;
}

.about-pullquote {
  position: relative;
  z-index: 1;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  font-weight: 300;
  line-height: 1.55;
  color: var(--charcoal);
  letter-spacing: 0.01em;
  max-width: 800px;
  margin-bottom: clamp(40px, 6vh, 70px);
}

.about-body {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(48px, 6vw, 100px);
  align-items: start;
}

.about-text {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.about-text p {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--dark-grey);
  font-weight: 300;
  margin-bottom: 22px;
}

.about-text strong {
  color: var(--charcoal);
  font-weight: 400;
}

.about-quote {
  padding-top: 8px;
}

.about-quote blockquote {
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  font-weight: 300;
  line-height: 1.75;
  color: var(--dark-grey);
  letter-spacing: 0.02em;
  padding-left: 28px;
  border-left: 2px solid var(--mid-grey);
}

.about-quote blockquote cite {
  display: block;
  margin-top: 22px;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-style: normal;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--mid-grey);
}

/* ===========================================
   CONTACT / "Let's Grow"
   =========================================== */
.section--contact {
  background: var(--off-white);
  padding: clamp(80px, 10vh, 140px) clamp(48px, 8vw, 120px);
  text-align: center;
}

/* Texture wash */
.section--contact::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('images/Textures/BirchBark.png');
  background-size: 400px;
  background-repeat: repeat;
  opacity: 0.025;
  pointer-events: none;
}

.contact-header {
  position: relative;
  z-index: 1;
  margin-bottom: clamp(40px, 5vh, 60px);
}

.contact-intro {
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.4vw, 1.1rem);
  line-height: 1.75;
  color: var(--dark-grey);
  font-weight: 300;
  letter-spacing: 0.01em;
  margin-top: 16px;
}

.contact-form {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  max-width: 560px;
  margin: 0 auto;
  text-align: left;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.form-group { margin-bottom: 24px; }

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mid-grey);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 0;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--charcoal);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--light-grey);
  border-radius: 0;
  outline: none;
  transition: border-color 0.4s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--charcoal);
}

.form-group textarea {
  resize: none;
  min-height: 80px;
  border-bottom: 1px solid var(--light-grey);
  padding: 12px 0;
}

.submit-btn {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 0;
  margin-top: 8px;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--charcoal);
  background: none;
  border: none;
  transition: all 0.4s ease;
}

.submit-btn:hover {
  letter-spacing: 0.5em;
}

.submit-btn svg {
  width: 16px;
  height: 16px;
  stroke: var(--charcoal);
  stroke-width: 1;
  transition: transform 0.4s ease;
}
.submit-btn:hover svg { transform: translateX(8px); }

/* Contact details */
.contact-details {
  position: relative;
  z-index: 1;
  display: flex;
  gap: clamp(40px, 6vw, 80px);
  margin-top: clamp(50px, 6vh, 80px);
  padding-top: clamp(40px, 5vh, 60px);
  border-top: 1px solid var(--light-grey);
}

.contact-detail h4 {
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--mid-grey);
  margin-bottom: 10px;
}

.contact-detail p {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 300;
  letter-spacing: 0.03em;
  color: var(--charcoal);
}

.maple-leaf {
  display: inline-block;
  vertical-align: -3px;
  margin-right: 4px;
  opacity: 0.4;
}

/* ===========================================
   FOOTER
   =========================================== */
.site-footer {
  text-align: center;
  padding: 40px 24px;
  background: var(--off-white);
  border-top: 1px solid var(--light-grey);
}

.footer-copy {
  font-family: var(--font-sans);
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--mid-grey);
}

/* ---- Responsive ---- */

/* 900px: About body → single column */
@media (max-width: 900px) {
  .about-body {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  /* --- Top nav --- */
  .top-nav {
    padding: 20px 20px;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .nav-logo {
    height: 69px;
  }

  .nav-tagline {
    font-size: 1.04rem;
    border-left: none;
    padding-left: 12px;
  }

  /* --- Hamburger --- */
  .hamburger {
    top: 20px;
    right: 20px;
  }

  .nav-menu {
    width: 100%;
    padding: 0;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    align-items: center;
  }

  .nav-link {
    border-bottom: none;
    padding: 14px 0;
  }

  .nav-link:first-child {
    border-top: none;
  }
}

/* 768px: Single columns, hide deco trees, stack contact details */
@media (max-width: 768px) {
  .scene {
    height: 100vh;
    height: 100svh;
  }

  .top-nav {
    padding-right: 72px;
  }

  .hamburger {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 8px;
    width: 48px;
    height: 48px;
  }

  /* Forest scene mobile */
  .trees { display: none; }

  .mobile-tree {
    display: flex;
    position: absolute;
    top: 100px;
    left: 0;
    right: 0;
    bottom: 48px;
    z-index: 2;
    align-items: center;
    justify-content: center;
    pointer-events: none;
  }

  .mobile-tree-img {
    width: auto;
    max-height: 100%;
    max-width: 80%;
    object-fit: contain;
    user-select: none;
    opacity: 0;
    mask-image: linear-gradient(to bottom, black 70%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, black 70%, transparent 100%);
  }

  .mobile-scroll-hint {
    display: flex;
    position: absolute;
    bottom: 16px;
    right: 20px;
    z-index: 20;
    pointer-events: none;
    transition: opacity 0.4s ease;
    color: var(--mid-grey);
  }

  .mobile-scroll-hint .scroll-dot {
    animation: scrollDotMove 1.8s ease-in-out infinite;
  }

  @keyframes scrollDotMove {
    0% { opacity: 1; transform: translateY(0); }
    50% { opacity: 0.3; transform: translateY(3px); }
    100% { opacity: 1; transform: translateY(0); }
  }

  .back-to-top {
    bottom: 20px;
    right: 20px;
  }

  .audio-toggle {
    bottom: 16px;
    left: 16px;
    width: 38px;
    height: 38px;
  }

  /* Hide decorative trees on mobile */
  .section-deco {
    display: none;
  }

  /* Section transitions smaller */
  .section-transition {
    height: 80px;
  }

  /* Services */
  .services-grid {
    grid-template-columns: 1fr;
    padding: 0 clamp(24px, 5vw, 48px);
  }

  .services-item {
    border-right: none !important;
    border-bottom: 1px solid var(--light-grey);
  }

  .services-item:last-child {
    border-bottom: none;
  }

  .services-hero {
    padding: 40px 24px 32px;
  }

  .services-hero-text {
    font-size: 1.3rem;
  }

  .services-item {
    padding: 28px 24px;
  }

  .services-item-num {
    font-size: 2rem;
  }

  /* About */
  .section--about {
    padding: 50px 24px;
  }

  .about-pullquote {
    font-size: 1.2rem;
  }

  .about-text p {
    font-size: 0.84rem;
    line-height: 1.75;
  }

  .about-quote blockquote {
    font-size: 0.95rem;
    line-height: 1.7;
  }

  /* Contact */
  .section--contact {
    padding: 50px 24px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .contact-details {
    flex-direction: column;
    align-items: center;
    gap: 28px;
  }

  .contact-detail {
    text-align: center;
  }

  .contact-detail h4 { font-size: 0.48rem; }
  .contact-detail p { font-size: 0.88rem; }

  .form-group input,
  .form-group textarea {
    font-size: 0.85rem;
  }
}

/* 480px: Tighter padding, smaller fonts */
@media (max-width: 480px) {
  .top-nav {
    padding: 16px 16px;
    gap: 4px;
  }

  .nav-logo { height: 50px; }
  .nav-tagline { font-size: 1.04rem; }

  .hamburger {
    top: 14px;
    right: 16px;
  }

  .tree-label { bottom: 10%; }
  .tree-label-text {
    font-size: 0.5rem;
    padding: 6px 10px;
    letter-spacing: 0.15em;
  }

  .section-label {
    font-size: 0.6rem;
    letter-spacing: 0.35em;
    margin-bottom: 12px;
  }

  .section-title { font-size: 1rem; }

  .section-transition { height: 60px; }

  .services-hero {
    padding: 32px 20px 24px;
  }

  .services-hero-text { font-size: 1.15rem; }

  .services-item {
    padding: 22px 20px;
  }

  .services-item-num { font-size: 1.6rem; margin-bottom: 14px; }
  .services-item-title { font-size: 0.68rem; margin-bottom: 8px; }
  .services-item-desc { font-size: 0.8rem; }

  .services-philosophy {
    padding: 40px 20px 0;
  }

  .section--about {
    padding: 40px 20px;
  }

  .about-pullquote { font-size: 1.05rem; }

  .about-text p {
    font-size: 0.8rem;
    margin-bottom: 16px;
  }

  .about-quote blockquote {
    font-size: 0.85rem;
    padding-left: 18px;
  }

  .section--contact {
    padding: 40px 20px;
  }

  .contact-intro { font-size: 0.88rem; }

  .contact-details {
    gap: 22px;
  }

  .form-group {
    margin-bottom: 20px;
  }

  .form-group label { font-size: 0.6rem; }

  .site-footer {
    padding: 32px 20px;
  }
}

/* ---- Accessibility ---- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .mist-layer { display: none; }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
}

.tree:focus-visible {
  outline: 2px solid var(--blue-accent);
  outline-offset: -4px;
  border-radius: 4px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ---- Hide system cursor globally — desktop only (must be last rule) ---- */
@media (pointer: fine) {
  html, body, *, *::before, *::after,
  a, button, input, textarea, select,
  [role="button"], .hamburger, .hamburger-line, .nav-link,
  .tree, .tree-img, .tree-label, .tree-label-text, .tree-glow,
  .back-btn, .back-btn span, .back-btn svg,
  .audio-toggle, .audio-toggle svg,
  .submit-btn, .submit-btn span, .submit-btn svg,
  .services-item, .services-item h3, .services-item p,
  .nav-logo, .nav-tagline, .preloader,
  .section, .section-title, .section-label,
  .section-transition, .section-deco, .site-footer,
  .about-text, .about-quote, .about-pullquote, .contact-form,
  .contact-details, .contact-detail, .contact-intro,
  label, blockquote, cite, h2, h3, h4, p, span, div, img, svg {
    cursor: url('images/blank.png') 0 0, url('images/blank.gif') 0 0, none !important;
  }
}

/* ---- Restore normal cursor on touch devices ---- */
@media (pointer: coarse) {
  html, body, *, *::before, *::after {
    cursor: auto !important;
  }
  a, button, [role="button"], .tree, .tree-img,
  .hamburger, .nav-link, .back-btn, .audio-toggle,
  .submit-btn, .services-item {
    cursor: pointer !important;
  }
  .mycelium {
    display: none;
  }
}