/* ============== THEME ============== */
:root {
  --bubble-count: 5;
  --hub-radius: clamp(160px, 28vw, 320px);
  --bubble-size: clamp(100px, 13vw, 150px);
  /* --radius-logo: clamp(96px, 14vw, 140px); */
  --radius-logo: clamp(120px, 18vw, 200px); /* increased center bubble size */
  --bg: #0f172a; /* slate-900 */
  --bg-soft: #111827; /* gray-900 */
  --fg: #e5e7eb; /* gray-200 */
  --muted: #a1a1aa; /* zinc-400 */
  --primary: #60a5fa; /* blue-400 */
  --glow: rgba(96, 165, 250, 0.35);
  --card: #111827;
  /* opacity of section background tint (mix with transparent). Lower value = more visible */
  --section-tint-alpha: 64%;
}

body.light {
  --bg: #f8fafc; /* slate-50 */
  --bg-soft: #ffffff;
  --fg: #0f172a; /* slate-900 */
  --muted: #475569; /* slate-600 */
  --primary: #2563eb; /* blue-600 */
  --glow: rgba(37, 99, 235, 0.25);
  --card: #ffffff;
  /* light mode: keep visible but more transparent than before */
  --section-tint-alpha: 46%;
}

/* Custom properties for smooth multi-point gradient animation (circles) */
@property --x0 {
  syntax: "<percentage>";
  inherits: false;
  initial-value: 50%;
}
@property --y0 {
  syntax: "<percentage>";
  inherits: false;
  initial-value: 60%;
}
@property --r0 {
  syntax: "<percentage>";
  inherits: false;
  initial-value: 30%;
}

@property --x1 {
  syntax: "<percentage>";
  inherits: false;
  initial-value: 26%;
}
@property --y1 {
  syntax: "<percentage>";
  inherits: false;
  initial-value: 22%;
}
@property --r1 {
  syntax: "<percentage>";
  inherits: false;
  initial-value: 14%;
}

@property --x2 {
  syntax: "<percentage>";
  inherits: false;
  initial-value: 82%;
}
@property --y2 {
  syntax: "<percentage>";
  inherits: false;
  initial-value: 30%;
}
@property --r2 {
  syntax: "<percentage>";
  inherits: false;
  initial-value: 12%;
}

@property --x3 {
  syntax: "<percentage>";
  inherits: false;
  initial-value: 30%;
}
@property --y3 {
  syntax: "<percentage>";
  inherits: false;
  initial-value: 84%;
}
@property --r3 {
  syntax: "<percentage>";
  inherits: false;
  initial-value: 12%;
}

/* ============== BASE ============== */
* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
}
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto,
    Ubuntu, Cantarell, Noto Sans, sans-serif, Apple Color Emoji, Segoe UI Emoji;
  background: var(--bg);
  color: var(--fg);
  overflow: hidden;
  cursor: none; /* hide native cursor */
}

#particleCanvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100vw;
  height: 100vh;
  min-width: 100%;
  min-height: 100%;
  object-fit: cover;
}

#fluidCanvas {
  position: fixed;
  inset: 0;
  z-index: 0; /* same layer as particles; we toggle visibility */
  display: none; /* hidden by default; shown when fluid mode via .bg-mode-fluid */
  pointer-events: none; /* don't block interactions */
  /* ensure it always fills the viewport and scales cleanly */
  width: 100vw;
  height: 100vh;
  min-width: 100%;
  min-height: 100%;
  object-fit: cover;
  transform: translateZ(0); /* promote to its own layer for smoother animations */
  /* will-change: transform, opacity; */
  /* respect device safe areas (notches) */
  /* padding: env(safe-area-inset-top, 0) env(safe-area-inset-right, 0)
    env(safe-area-inset-bottom, 0) env(safe-area-inset-left, 0); */
}

/* show when fluid mode is active (keeps original toggle behavior) */
.bg-mode-fluid #fluidCanvas {
  display: block;
}

/* hide on small screens or touch devices for performance/usability */
/* @media (max-width: 500px), (pointer: coarse) {
  #fluidCanvas {
    display: none !important;
  }
} */

#custom-cursor {
  position: fixed;
  width: 25px;
  height: 25px;
  border: 2px solid var(--cursor-color, var(--primary));
  border-radius: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 9999;
  transition: width 0.25s ease, height 0.25s ease, background 0.25s ease,
    border-color 0.25s ease, transform 0.08s ease;
  backdrop-filter: blur(2px);
}

#trailCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 9998;
  /* ensure it scales with viewport */
  object-fit: cover;
}

/* Hide trail on small screens or touch devices */
@media (max-width: 500px), (pointer: coarse) {
  #trailCanvas {
    display: none;
  }
}
.cursor-hover {
  width: 35px !important;
  height: 35px !important;
  background: var(--glow);
  border-color: transparent;
}
/* Hide circle when exit X state is active */
#custom-cursor.hide-circle {
  width: 0 !important;
  height: 0 !important;
  border-width: 0 !important;
  background: transparent !important;
}

/* ============== UNIVERSE (CENTERING) ============== */
#universe {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: grid;
  place-items: center; /* ensures true centering */
  transition: transform 0.8s cubic-bezier(0.68, -0.55, 0.27, 1.55);
}

/* ============== NAVIGATION HUB ============== */
.nav-hub {
  position: relative; /* stays centered by grid parent */
  width: 1px;
  height: 1px;
  opacity: 1;
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.central-logo {
  position: absolute;
  width: var(--radius-logo);
  height: var(--radius-logo);
  border-radius: 50%;
  background: radial-gradient(
      120% 120% at 30% 30%,
      var(--bg-soft),
      transparent 70%
    ),
    var(--bg-soft);
  border: 4px solid color-mix(in oklab, var(--primary), transparent 65%);
  display: grid;
  place-items: center;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
  box-shadow: 0 0 0 8px rgba(128, 128, 128, 0.1), 0 0 40px 8px var(--glow) inset;
}
.central-logo {
  overflow: hidden;
}
/* Make logo image cover the circle neatly */
.central-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  display: block;
}
/* Disable interactions on central logo */
.central-logo {
  pointer-events: none;
}

.intro-top {
  position: absolute;
  left: 50%;
  top: calc(50% - var(--radius-logo) / 2 - 36px);
  transform: translateX(-50%);
  color: var(--fg);
  font-weight: 800;
  letter-spacing: 0.02em;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.35);
  font-size: clamp(18px, 2.6vw, 26px);
  text-wrap: nowrap;
}
.intro-banner {
  position: absolute;
  top: calc(50% + var(--radius-logo) / 2 + 18px);
  left: 50%;
  transform: translateX(-50%);
  color: var(--muted);
  text-align: center;
  width: min(92vw, 780px);
  line-height: 1.4;
}
.intro-banner p {
  margin: 0;
  font-size: clamp(12px, 1.8vw, 16px);
  white-space: normal;
}

.nav-bubble {
  position: absolute;
  width: var(--bubble-size);
  height: var(--bubble-size);
  background: linear-gradient(
    145deg,
    color-mix(in oklab, var(--bg-soft), white 6%),
    color-mix(in oklab, var(--bg-soft), black 6%)
  );
  border-radius: 50%;
  border: 4px solid color-mix(in oklab, var(--primary), transparent 65%);
  cursor: pointer;
  display: grid;
  place-items: center;
  will-change: transform;
  transition: transform 0.1s ease, box-shadow 0.3s ease, border-color 0.3s ease; /* change transform timing to adjust responsiveness*/
  --angle: calc(360deg / var(--bubble-count));
  --rotation: calc(var(--angle) * var(--i));
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(var(--rotation))
    translateX(var(--hub-radius)) rotate(calc(-1 * var(--rotation)))
    translate(var(--dx, 0px), var(--dy, 0px));
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  appearance: none;
  -webkit-appearance: none;
  border-width: 4px;
}
@media (max-width: 720px) {
  :root {
    /* 50vw is half the screen, subtract half the bubble + a little padding */
    --hub-radius: calc(50vw - var(--bubble-size) / 2 - 8px);
  }
}
.nav-bubble:hover {
  box-shadow: 0 0 0 4px var(--glow), 0 12px 28px rgba(0, 0, 0, 0.4);
  border-color: var(--primary);
}
.nav-bubble .orb {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  transition: transform 0.18s ease;
  will-change: transform;
}
.nav-bubble:hover .orb {
  transform: scale(1.08);
}
.nav-bubble-content {
  display: grid;
  place-items: center;
  gap: 6px;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  color: var(--fg);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
}
.nav-bubble-content i {
  font-size: 1.8rem;
  color: var(--primary);
  filter: drop-shadow(0 0 10px var(--glow));
}

/* ============== CONTENT SECTIONS ============== */
.content-section {
  position: absolute;
  inset: 0;
  padding: clamp(16px, 4vw, 48px);
  display: grid;
  align-content: start;
  justify-items: center;
  gap: 24px;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s ease;
  /* Animated multi-orbit with varied sizes (one large, others smaller) - circles */
  --section-tint: color-mix(
    in oklab,
    var(--primary),
    transparent var(--section-tint-alpha)
  );
  background:
        /* Large diffuse base circle */ radial-gradient(
      circle at var(--x0, 50%) var(--y0, 60%),
      var(--section-tint),
      transparent var(--r0, 34%)
    ),
    /* Medium + two small circles with varied radii */
      radial-gradient(
        circle at var(--x1, 26%) var(--y1, 22%),
        var(--section-tint),
        transparent var(--r1, 16%)
      ),
    radial-gradient(
      circle at var(--x2, 82%) var(--y2, 30%),
      var(--section-tint),
      transparent var(--r2, 14%)
    ),
    radial-gradient(
      circle at var(--x3, 30%) var(--y3, 84%),
      var(--section-tint),
      transparent var(--r3, 15%)
    );
  background-repeat: no-repeat;
  /* Independent orbits to avoid synchronized grid-like motion */
  animation: orbit0 48s ease-in-out infinite alternate,
    orbit1 31s cubic-bezier(0.36, 0, 0.64, 1) infinite alternate,
    orbit2 37s ease-in-out infinite alternate,
    orbit3 29s cubic-bezier(0.36, 0, 0.64, 1) infinite alternate;
  overflow: auto; /* allow vertical scroll when content is tall */
  overscroll-behavior: contain; /* avoid iOS pull-to-refresh/resize bumps */
}
.content-section h1 {
  font-size: clamp(28px, 4vw, 48px);
  margin: 16px 0 8px;
}
.content-section p {
  max-width: 900px;
  margin: 0 auto;
  color: var(--muted);
}

.back-btn {
  position: fixed;
  top: 20px;
  left: 20px;
  font-size: 1rem;
  cursor: pointer;
  padding: 10px 14px;
  background: var(--bg-soft);
  color: var(--fg);
  border-radius: 10px;
  border: 4px solid color-mix(in oklab, var(--primary), transparent 70%);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
  transition: background 0.25s ease, transform 0.1s ease;
  z-index: 1000;
}
.back-btn:hover {
  background: color-mix(in oklab, var(--bg-soft), white 6%);
}
.back-btn:active {
  transform: translateY(1px);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 10px;
  width: min(1100px, 92%);
  margin-top: 10px;
}
.gallery-item {
  background: var(--card);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25);
}
.gallery-item img {
  width: 100%;
  height: auto;
  display: block;
}
.gallery-item figcaption {
  padding: 10px 12px;
  font-size: 0.95rem;
  color: var(--muted);
}

.masonry {
  columns: 3 260px;
  column-gap: 16px;
  width: min(1100px, 92%);
}
.masonry img {
  width: 100%;
  margin: 0 0 16px;
  border-radius: 12px;
  display: block;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25);
}

.cards {
  list-style: none;
  padding: 0;
  margin: 10px auto 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  width: min(1100px, 92%);
}
.card {
  background: var(--card);
  border: 1px solid color-mix(in oklab, var(--primary), transparent 70%);
  border-radius: 14px;
  padding: 14px;
  text-align: left;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}
.card img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  display: block;
}
.card h3 {
  margin: 10px 0 6px;
}
.card p {
  margin: 0;
  color: var(--muted);
}

.posts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  width: min(1100px, 92%);
}
.post {
  background: var(--card);
  border-radius: 14px;
  overflow: hidden;
  text-align: left;
  border: 1px solid color-mix(in oklab, var(--primary), transparent 70%);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}
.post img {
  width: 100%;
  display: block;
}
.post h3 {
  margin: 12px 12px 6px;
}
.post p {
  margin: 0 12px 16px;
  color: var(--muted);
}

.playlist-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  width: min(1100px, 92%);
}
.playlist {
  background: var(--card);
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid color-mix(in oklab, var(--primary), transparent 70%);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}
.playlist img {
  width: 100%;
  display: block;
}
.playlist h3 {
  margin: 12px;
}

/* ============== ACTIVE STATE ============== */
/* On desktop screens the hub scales down when a section opens. Keep mobile rule separate below. */
/* Default: keep the hub visible unless a section is open */
#universe.section-active .nav-hub {
  opacity: 0;
  transform: scale(0.75);
  pointer-events: none;
}

/* Only apply the scale/zoom animation on larger (desktop) viewports to preserve
   mobile stability; mobile-specific rule below overrides transform to none. */
@media (min-width: 721px) {
  #universe.section-active .nav-hub {
    opacity: 0;
    transform: scale(0.75);
    pointer-events: none;
  }
}
/* On small screens, avoid scaling the nav-hub to keep fixed intro elements stable */
@media (max-width: 720px) {
  #universe.section-active .nav-hub {
    opacity: 0;
    transform: none; /* don't scale or shift */
    pointer-events: none;
  }
  .intro-top, .intro-banner {
    position: fixed; /* ensure they stay attached to viewport */
    z-index: 30;
    user-select: none; /* disable selection */
  }
}
.content-section.active {
  opacity: 1;
  pointer-events: auto;
}

/* Apply the scale transition to the section's visible children so the section itself
   doesn't create a containing block for fixed-position descendants (like .back-overlay).
   Exclude .back-overlay so it remains fixed to the viewport. */
.content-section > :not(.back-overlay) {
  transform: scale(0.96);
  transition: transform 0.5s ease;
  transform-origin: center center;
}
.content-section.active > :not(.back-overlay) {
  transform: scale(1);
}

/* Large diffuse base circle orbit */
@keyframes orbit0 {
  0% {
    --x0: 46%;
    --y0: 42%;
    --r0: 28%;
  }
  35% {
    --x0: 54%;
    --y0: 38%;
    --r0: 36%;
  }
  70% {
    --x0: 58%;
    --y0: 66%;
    --r0: 32%;
  }
  100% {
    --x0: 44%;
    --y0: 62%;
    --r0: 34%;
  }
}

/* Medium circle: gentle clockwise path */
@keyframes orbit1 {
  0% {
    --x1: 22%;
    --y1: 26%;
    --r1: 12%;
  }
  25% {
    --x1: 30%;
    --y1: 18%;
    --r1: 16%;
  }
  50% {
    --x1: 38%;
    --y1: 26%;
    --r1: 14%;
  }
  75% {
    --x1: 28%;
    --y1: 36%;
    --r1: 18%;
  }
  100% {
    --x1: 22%;
    --y1: 26%;
    --r1: 14%;
  }
}

/* Small circle on the right: counter-clockwise, varying radius */
@keyframes orbit2 {
  0% {
    --x2: 84%;
    --y2: 26%;
    --r2: 12%;
  }
  30% {
    --x2: 76%;
    --y2: 38%;
    --r2: 16%;
  }
  60% {
    --x2: 82%;
    --y2: 54%;
    --r2: 10%;
  }
  100% {
    --x2: 90%;
    --y2: 36%;
    --r2: 14%;
  }
}

/* Lower-left small circle: subtle drift */
@keyframes orbit3 {
  0% {
    --x3: 26%;
    --y3: 82%;
    --r3: 11%;
  }
  40% {
    --x3: 36%;
    --y3: 86%;
    --r3: 15%;
  }
  80% {
    --x3: 28%;
    --y3: 90%;
    --r3: 12%;
  }
  100% {
    --x3: 22%;
    --y3: 78%;
    --r3: 9%;
  }
}

/* Respect reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  .content-section {
    animation: none !important;
  }
}

/* Back overlay for easy return (bottom area) */
.back-overlay {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: min(20vh, 200px);
  z-index: 2;
  cursor: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="36" height="36" viewBox="0 0 24 24" fill="none" stroke="white" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><line x1="18" y1="6" x2="6" y2="18"/><line x1="6" y1="6" x2="18" y2="18"/></svg>')
      12 12,
    not-allowed;
  /* default hidden */
  opacity: 0;
  pointer-events: none;
  background: transparent;
  transition: opacity 220ms ease;
}
/* when a section is active show the overlay */
.content-section.active .back-overlay {
  pointer-events: auto;
  opacity: 1;
}

/* intensify gradient when hovering the overlay to make it more visible */
.back-overlay:hover {
  transition: opacity 220ms ease;
  background: linear-gradient(
    to top,
    rgba(55, 79, 95, 0.185) 0%,
    rgba(128, 128, 128, 0) 70%,
    transparent 100%
  );
}
/* Hide bottom-center X on PCs */
@media (hover: hover) and (pointer: fine) {
  .back-btn-mobile,
  .content-section.active .back-btn-mobile {
    display: none !important; /* fully remove */
  }
}

/* Mobile bottom-center X button to close section */
.back-btn-mobile {
  position: sticky;
  /* left: 50%; bottom: 14px; */
  top: 90%;
  transform: translateX(-50%);
  z-index: 3;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: var(--bg-soft);
  color: var(--fg);
  border: 1px solid color-mix(in oklab, var(--primary), transparent 70%);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.15s ease, background 0.25s ease;
}
.back-btn-mobile i {
  font-size: 1.2rem;
}
.content-section.active .back-btn-mobile {
  opacity: 1;
  pointer-events: auto;
}
.back-btn-mobile:active {
  transform: translateX(-50%) scale(0.98);
}

/* ============== THEME TOGGLE BUTTON ============== */
/* .theme-toggle {
    position: fixed; top: 18px; right: 18px; z-index: 10000;
    display: grid; grid-auto-flow: column; gap: 8px; place-items: center;
    padding: 10px 12px; background: var(--bg-soft); color: var(--fg);
    border: 1px solid color-mix(in oklab, var(--primary), transparent 70%);
    border-radius: 12px; cursor: pointer;
    box-shadow: 0 8px 20px rgba(0,0,0,0.25);
} */
.theme-toggle {
  position: fixed;
  z-index: 10000;
  top: 14px;
  right: 14px;
  width: clamp(44px, 6.5vw, 60px);
  height: clamp(44px, 6.5vw, 60px);
  display: grid;
  place-items: center;
  background: transparent !important; /* remove background */
  border: none !important; /* remove border */
  box-shadow: none !important; /* remove any shadow */
  color: var(--fg);
  cursor: pointer;
  border-radius: 12px; /* keep for focus ring shape */
}

.theme-toggle:hover {
  transform: scale(1.06);
}
.theme-toggle:active {
  transform: scale(0.98);
}

/* Make the icon bigger */
#theme-icon {
  font-size: clamp(22px, 3.2vw, 32px);
  line-height: 1;
}

/* Place the background toggle to the left of the theme toggle */
.bg-toggle {
  right: calc(14px + clamp(44px, 6.5vw, 60px) + 8px);
}

.settings-toggle {
  right: calc(14px + (clamp(44px, 6.5vw, 60px) + 8px) * 2);
}

#bg-icon {
  font-size: clamp(22px, 3.2vw, 32px);
  line-height: 1;
}

/* ensure settings icon matches theme/bg icons */
#settings-icon {
  font-size: clamp(22px, 3.2vw, 32px);
  line-height: 1;
}

/* Settings popover */
.settings-popover {
  position: fixed;
  z-index: 10000;
  top: calc(14px + clamp(44px, 6.5vw, 60px) + 8px);
  right: 14px;
  width: min(300px, 90vw);
  padding: 12px;
  border-radius: 12px;
  background: color-mix(in oklab, var(--bg-soft), transparent 20%);
  border: 1px solid color-mix(in oklab, var(--primary), transparent 70%);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  color: var(--fg);
  display: none;
}
.settings-popover .row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 10px;
  margin: 8px 0;
}
.settings-popover .row.chk {
  grid-template-columns: 1fr;
}
.settings-popover label {
  font-size: 0.85rem;
  color: var(--muted);
}
.settings-popover input[type="range"] {
  width: 100%;
}
.settings-popover .actions {
  display: flex;
  justify-content: flex-end;
}
.settings-popover .mini-btn {
  background: var(--bg-soft);
  color: var(--fg);
  border: 1px solid color-mix(in oklab, var(--primary), transparent 70%);
  border-radius: 8px;
  padding: 6px 8px;
  cursor: pointer;
}
.settings-popover .mini-btn:hover {
  background: color-mix(in oklab, var(--bg-soft), white 6%);
}

/* helper classes for background modes */
.bg-mode-fluid #fluidCanvas {
  display: block;
}
.bg-mode-fluid #particleCanvas {
  display: none;
}
.bg-mode-particles #fluidCanvas {
  display: none;
}
.bg-mode-particles #particleCanvas {
  display: block;
}

/* Optional accessible focus ring (still no background/border) */
.theme-toggle:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--primary), transparent 70%);
}
.theme-toggle i {
  font-size: 1.1rem;
}

/* ============== SECTION COLOR THEMES ============== */
/* Subtle backdrop color tint per section (using overlay) */
#projects {
  --primary: #60a5fa;
}
#art {
  --primary: #f472b6;
}
#learning {
  --primary: #34d399;
}
#writing {
  --primary: #f59e0b;
}
#music {
  --primary: #a78bfa;
}

/* Increase bubble size on larger screens and ensure readable labels */
@media (min-width: 900px) {
  :root {
    --bubble-size: clamp(110px, 12vw, 140px);
  }
  .nav-bubble-content {
    font-size: 0.9rem;
  }
}

/* Responsive tweaks */
@media (max-width: 720px) {
  .nav-bubble-content span {
    display: none;
  }

  /* Move intro copy away from the crowded center on phones */
  .intro-top {
    position: fixed;
    top: calc(env(safe-area-inset-top, 0px) + 12px);
    left: 16px;
    transform: none;
    z-index: 20;
    font-size: clamp(16px, 4.6vw, 20px);
    text-shadow: none;
    /* soft translucent pill for readability over canvas */
    background: color-mix(in oklab, var(--bg-soft), transparent 35%);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    padding: 6px 10px;
    border-radius: 10px;
    border: 1px solid color-mix(in oklab, var(--primary), transparent 75%);
    pointer-events: none; /* don’t block taps on bubbles */
  }

  .intro-banner {
    position: fixed;
    top: calc(env(safe-area-inset-top, 0px) + 54px);
    left: 16px;
    transform: none;
    text-align: left;
    width: calc(100vw - 32px);
    z-index: 20;
    pointer-events: none;
  }
  .intro-banner p {
    font-size: clamp(12px, 3.6vw, 14px);
  }
}

/* Touch devices: keep native cursor and hide custom cursor/trail */
@media (pointer: coarse) {
  body {
    cursor: auto;
  }
  #custom-cursor,
  #trailCanvas {
    display: none;
  }
  /* Disable the large invisible tap area on touch devices; use the button instead */
  .back-overlay {
    display: none !important;
  }
}

/* Wobble the inner orb slightly for a lively feel */
@keyframes orbWobble {
  0% {
    transform: translateY(0) scale(1);
  }
  50% {
    transform: translateY(-2px) scale(1.01);
  }
  100% {
    transform: translateY(0) scale(1);
  }
}
.nav-bubble .orb {
  animation: orbWobble 4s ease-in-out infinite;
  animation-delay: calc(var(--i) * 0.12s);
}

/* Orbits connection canvas */
#orbitsCanvas {
  /* fill its container responsively */
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

/* hide on smaller screens or touch devices for performance */
@media (max-width: 500px) {
  #orbitsCanvas {
    display: none;
  }
}

/* ============== FLOATING FOOTER (appears only while scrolling) ============== */
#page-footer {
  position: fixed;
  left: 50%;
  transform: translate(-50%, 110%); /* hidden below viewport by default */
  bottom: 18px;
  z-index: 10001;
  transition: transform 360ms cubic-bezier(0.2, 0.9, 0.2, 1), opacity 260ms ease;
  opacity: 0; /* invisible when not active */
  pointer-events: none; /* don't block interactions when hidden */
}
#page-footer .footer-inner {
  display: inline-flex;
  gap: 14px;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 12px;
  background: color-mix(in oklab, var(--bg-soft), transparent 40%);
  color: var(--fg);
  border: 1px solid color-mix(in oklab, var(--primary), transparent 70%);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}
#page-footer.visible {
  transform: translate(-50%, 0%);
  opacity: 1;
  pointer-events: auto;
}

#page-footer a {
  color: #2563eb;
  text-decoration: none;
}

/* Slightly smaller and centered on narrow screens */
@media (max-width: 640px) {
  #page-footer .footer-inner {
    width: calc(100vw - 40px);
    justify-content: space-between;
  }
}