/* ============================================================
   CURSOR SYSTEM
   A point, a follower, a label and a media well — four parts
   that recombine into a different personality per context.
   Only ever enabled for real pointing devices.
   ============================================================ */

.cursor-layer { display: none; }

@media (hover: hover) and (pointer: fine) {
  html.has-cursor, html.has-cursor * { cursor: none; }
  /* Text entry keeps a real caret — never sacrifice usability */
  html.has-cursor input,
  html.has-cursor textarea,
  html.has-cursor [contenteditable] { cursor: text; }

  .cursor-layer {
    display: block;
    position: fixed; inset: 0;
    z-index: var(--z-cursor);
    pointer-events: none;
  }

  /* ---- The point: sharp, near-zero latency ---------------- */
  .cursor-dot {
    position: absolute; top: 0; left: 0;
    width: 6px; height: 6px;
    margin: -3px 0 0 -3px;
    border-radius: 50%;
    background: var(--world-accent);
    transform: translate3d(-100px, -100px, 0);
    transition: width var(--t-ui) var(--e-out),
                height var(--t-ui) var(--e-out),
                margin var(--t-ui) var(--e-out),
                opacity var(--t-micro) linear,
                background-color var(--world-shift) var(--e-glide);
    will-change: transform;
  }

  /* ---- The follower: inertial, expressive ----------------- */
  .cursor-ring {
    position: absolute; top: 0; left: 0;
    width: 40px; height: 40px;
    margin: -20px 0 0 -20px;
    border-radius: 50%;
    border: 1px solid color-mix(in srgb, var(--world-fg) 42%, transparent);
    transform: translate3d(-100px, -100px, 0);
    transition: width 480ms var(--e-out), height 480ms var(--e-out),
                margin 480ms var(--e-out),
                background-color var(--t-ui) var(--e-out),
                border-color var(--t-ui) var(--e-out),
                opacity var(--t-ui) linear;
    will-change: transform;
    display: grid; place-items: center;
    overflow: hidden;
  }

  .cursor-label {
    font-family: var(--f-mono);
    font-size: 9px; letter-spacing: 0.22em; text-transform: uppercase;
    color: var(--obsidian);
    opacity: 0;
    transform: translateY(6px);
    transition: opacity var(--t-micro) linear, transform var(--t-ui) var(--e-out);
    white-space: nowrap;
    mix-blend-mode: normal;
  }

  /* ---- Media well: a project frame carried by the cursor --- */
  .cursor-media {
    position: absolute; top: 0; left: 0;
    width: 230px; height: 300px;
    margin: -150px 0 0 -115px;
    transform: translate3d(-400px, -400px, 0) scale(0.82);
    opacity: 0;
    overflow: hidden;
    transition: opacity 420ms var(--e-out), transform 620ms var(--e-out);
    will-change: transform, opacity;
    clip-path: inset(0 0 100% 0);
    background: var(--obsidian);
  }
  .cursor-media img {
    width: 100%; height: 100%; object-fit: cover;
    opacity: 0; transition: opacity 340ms var(--e-out);
    transform: scale(1.06);
  }
  .cursor-media img.is-on { opacity: 1; }
  .cursor-media::after {           /* film-gate edge */
    content: ''; position: absolute; inset: 0;
    border: 1px solid color-mix(in srgb, var(--gold) 55%, transparent);
    mix-blend-mode: screen;
  }

  /* ========================================================
     STATES
     ======================================================== */

  /* LINK — ring tightens onto the target, dot dims */
  .cur-link .cursor-ring {
    width: 62px; height: 62px; margin: -31px 0 0 -31px;
    background: color-mix(in srgb, var(--world-accent) 16%, transparent);
    border-color: color-mix(in srgb, var(--world-accent) 70%, transparent);
  }
  .cur-link .cursor-dot { opacity: 0.35; }

  /* READ — press items: ring becomes a solid gold chip w/ label */
  .cur-read .cursor-ring {
    width: 84px; height: 84px; margin: -42px 0 0 -42px;
    background: var(--gold); border-color: var(--gold);
  }
  .cur-read .cursor-label { opacity: 1; transform: translateY(0); }
  .cur-read .cursor-dot { opacity: 0; }

  /* PROJECT — the frame opens and rides with the pointer */
  .cur-project .cursor-ring {
    width: 0; height: 0; margin: 0; opacity: 0;
  }
  .cur-project .cursor-dot {
    width: 10px; height: 10px; margin: -5px 0 0 -5px;
    background: var(--gold-pale);
  }
  .cur-project .cursor-media {
    opacity: 1; clip-path: inset(0 0 0 0);
    transform: translate3d(var(--cm-x, 0), var(--cm-y, 0), 0) scale(1);
  }

  /* LENS — over photography: ring becomes an aperture */
  .cur-lens .cursor-ring {
    width: 132px; height: 132px; margin: -66px 0 0 -66px;
    border-color: color-mix(in srgb, var(--gold) 62%, transparent);
    background: color-mix(in srgb, var(--cream) 5%, transparent);
    backdrop-filter: saturate(1.35) contrast(1.06) brightness(1.04);
  }
  .cur-lens .cursor-label { opacity: 0.9; transform: translateY(0); color: var(--cream); }
  .cur-lens .cursor-dot { opacity: 0; }

  /* SOUND — over music: the ring breathes on a loop */
  .cur-sound .cursor-ring {
    width: 76px; height: 76px; margin: -38px 0 0 -38px;
    border-color: var(--gold-pale);
    animation: cursor-pulse 1.6s var(--e-glide) infinite;
  }
  .cur-sound .cursor-label { opacity: 1; transform: translateY(0); color: var(--cream); }
  .cur-sound .cursor-dot { opacity: 0; }

  @keyframes cursor-pulse {
    0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--gold) 34%, transparent); }
    55%      { box-shadow: 0 0 0 16px transparent; }
  }

  /* PRESSED — everything contracts, decisively */
  .cur-down .cursor-ring { transform: translate3d(var(--r-x,0), var(--r-y,0), 0) scale(0.84); }
  .cur-down .cursor-dot  { opacity: 1; }

  /* HIDDEN — off-window */
  .cur-hidden .cursor-dot,
  .cur-hidden .cursor-ring,
  .cur-hidden .cursor-media { opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html.has-cursor, html.has-cursor * { cursor: auto; }
  .cursor-layer { display: none !important; }
}