/* M2 Link themes — background pattern CSS (from Odysseus style.css)
   + visual tile pickers for the Account page. */

:root { --bg-effect-intensity: 1; }

/* Canvas-based effects — single source of truth for intensity */
#synapse-canvas, #rain-canvas, #constellations-canvas,
#perlin-flow-canvas, #petals-canvas, #link-canvas,
#embers-canvas, #fireflies-canvas, #gravity-canvas,
#magnet-canvas, #warp-canvas, #ripples-canvas, #swarm-canvas,
#aurora-canvas, #matrix-canvas, #blizzard-canvas,
#koi-canvas, #lattice-canvas, #bubbles-canvas, #meteors-canvas,
#pond-canvas, #silk-canvas, #wisps-canvas, #kaleido-canvas,
#glass-canvas, #lava-canvas {
  opacity: var(--bg-effect-intensity, 1);
}

body.bg-pattern-dots {
  background-image: radial-gradient(color-mix(in srgb, var(--bg-effect-color, var(--fg)) calc(5% * var(--bg-effect-intensity, 1)), transparent) 1px, transparent 1px);
  background-size: 20px 20px; background-attachment: fixed;
}
body.bg-pattern-synapse {
  /* CSS grid as base, canvas pulses overlay */
  background-image: linear-gradient(color-mix(in srgb, var(--bg-effect-color, var(--fg)) calc(3.5% * var(--bg-effect-intensity, 1)), transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--bg-effect-color, var(--fg)) calc(3.5% * var(--bg-effect-intensity, 1)), transparent) 1px, transparent 1px);
  background-size: 24px 24px; background-attachment: fixed;
}
/* rain / constellations / perlin-flow / petals / link / embers are
   canvas-only; the themed body backdrop shows through behind them. */

/* ── Tile pickers ── */
.tile-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(72px, 1fr)); gap: 8px; }
.tile-grid button {
  width: auto; margin: 0; padding: 0; border: 1px solid var(--line);
  border-radius: var(--r-sm); box-shadow: none; font: inherit; cursor: pointer;
  transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
}
.tile-grid button:hover { filter: none; transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--fg) 30%, transparent); box-shadow: none; }
.tile-grid button:active { transform: none; }
.tile-grid button.selected, .tile-grid button.selected:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), 0 4px 14px color-mix(in srgb, var(--accent) 25%, transparent);
}

.theme-tile { display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 8px 7px 7px; }
.theme-tile .tt-panel { width: 100%; height: 30px; border-radius: 6px;
  border: 1px solid; display: flex; align-items: center; justify-content: center; gap: 5px; }
.theme-tile .tt-dot { width: 10px; height: 10px; border-radius: 50%; }
.theme-tile .tt-line { width: 18px; height: 3px; border-radius: 2px; opacity: .75; }
.theme-tile .tt-name { font-size: 9px; font-weight: 650; text-transform: uppercase;
  letter-spacing: .1em; opacity: .85; }

.pattern-tile { display: flex; flex-direction: column; align-items: center; gap: 5px;
  padding: 10px 6px 8px; background: color-mix(in srgb, var(--fg) 2%, transparent);
  color: var(--muted); }
.pattern-tile:hover { color: var(--fg); background: color-mix(in srgb, var(--fg) 4%, transparent); }
.pattern-tile.selected { color: var(--fg); }
.pattern-tile .pt-glyph { font-size: 18px; line-height: 1; }
.pattern-tile .pt-name { font-size: 9px; font-weight: 650; text-transform: uppercase;
  letter-spacing: .1em; }

/* Header quick theme picker: native popover, light dismiss for free.
   ponytail: no Popover API (pre-2023 browser) = dead button; fine for one user */
#m2-theme-pop { position: fixed; inset: 54px 12px auto auto; margin: 0;
  width: min(380px, calc(100vw - 24px)); max-height: 72vh; overflow: auto;
  padding: 14px; background: var(--panel); color: var(--fg);
  border: 1px solid var(--line); border-radius: var(--r, 12px);
  box-shadow: 0 18px 50px rgba(0, 0, 0, .45); }
#m2-theme-pop .pop-edit { display: block; margin-top: 12px; font-size: 12px;
  color: var(--muted); text-decoration: none; }
#m2-theme-pop .pop-edit:hover { color: var(--fg); }

/* Delete × on custom theme tiles */
.theme-tile { position: relative; }
.theme-tile .tt-del { position: absolute; top: 1px; right: 6px; font-size: 13px;
  line-height: 1.4; opacity: .55; }
.theme-tile .tt-del:hover { opacity: 1; }

/* ── Effect controls: swatch + step tiles (no bare inputs) ── */
.fx-row { display: flex; flex-wrap: wrap; align-items: center; gap: 7px; }
.fx-swatch { width: 28px; height: 28px; border-radius: 50%; border: 1px solid var(--line);
  margin: 0; padding: 0; box-shadow: none; cursor: pointer; flex: none; position: relative;
  transition: transform var(--ease), box-shadow var(--ease); }
.fx-swatch:hover { transform: translateY(-1px) scale(1.08); filter: none; box-shadow: none; }
.fx-swatch.selected, .fx-swatch.selected:hover {
  box-shadow: 0 0 0 2px var(--panel), 0 0 0 4px var(--accent); }
.fx-custom { display: inline-block;
  background: conic-gradient(#f00, #ff0, #0f0, #0ff, #00f, #f0f, #f00); overflow: hidden; }
.fx-custom input, .fx-custom .clr-field, .fx-custom .clr-field input,
.fx-custom .clr-field button { position: absolute; inset: 0; width: 100%; height: 100%;
  opacity: 0; padding: 0; margin: 0; border: 0; cursor: pointer; }
.fx-custom .clr-field { opacity: 1; background: none; }
.fx-range { display: block; width: 260px; max-width: 100%; margin: 2px 0 6px; }

/* ── Shared color fields: Coloris hex input + save-star (QR / bio / account) ── */
.cwrap { display: flex; align-items: center; gap: 6px; flex: none; }
.coloris { font: 13px ui-monospace, Consolas, monospace; text-transform: lowercase;
  width: 118px; min-width: 0; }
.csave { width: auto; margin: 0; padding: 5px 9px; background: none;
  border: 1px solid var(--line); border-radius: 8px; color: var(--muted); cursor: pointer;
  font-size: 13px; line-height: 1; box-shadow: none; flex: none;
  transition: color var(--ease), border-color var(--ease); }
.csave:hover { border-color: color-mix(in srgb, var(--fg) 28%, transparent); color: var(--fg);
  filter: none; box-shadow: none; }
.csave.on { color: var(--accent-hi); border-color: color-mix(in srgb, var(--accent) 45%, transparent); }
/* Coloris preview: undo the app's global pill-button styling (radius/padding/shadow
   leak in and render as a warped oval). Small centered circle with a hairline rim. */
.cwrap .clr-field button { width: 16px; height: 16px; right: 10px; padding: 0;
  border: 1px solid color-mix(in srgb, var(--fg) 30%, transparent);
  border-radius: 50%; box-shadow: none; }
.cwrap .clr-field input { padding-right: 34px; }

/* ── Custom theme editor ── */
.ct-grid { display: flex; flex-direction: column; gap: 6px; }
.ct-grid label { display: flex; align-items: center; justify-content: space-between;
  gap: 10px; margin: 0; font-size: 12px; color: var(--muted); }
.ct-chips { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.ct-chip { width: auto; margin: 0; padding: 7px 4px; font-size: 11.5px; text-align: center;
  background: color-mix(in srgb, var(--fg) 2%, transparent); color: var(--muted);
  border: 1px solid var(--line); border-radius: 999px; box-shadow: none; cursor: pointer; }
.ct-chip:hover { color: var(--fg); filter: none; box-shadow: none;
  border-color: color-mix(in srgb, var(--fg) 30%, transparent); }
.ct-chip.selected { color: var(--fg); border-color: var(--accent); }
.ct-save { display: flex; gap: 8px; margin-top: 16px; }
.ct-save input { flex: 1; min-width: 0; }
.ct-save button { width: auto; margin: 0; padding: 9px 16px; flex: none; }