/*
  sunflower-golden-angle app styles.
  Colors come from the variables below, set per omg theme
  (html[data-theme] is set by setTheme in omg.js). The canvas reads them too.
*/

:root {
  /* dark (default theme) */
  --sf-canvas: #141a24;
  --sf-panel: var(--card-bg, #2d3848);
  --sf-line: var(--card-border, #3c4a5f);
  --sf-muted: var(--card-foot, #b7c4d6);
  --sf-strong: var(--card-strong, white);
  --sf-gold: #ffb74d;
  --sf-gold-deep: #e08a00;
  --sf-mono: "Overpass Mono", ui-monospace, Menlo, monospace;
}
html[data-theme="light"] {
  --sf-canvas: #ffffff;
  --sf-panel: #f4f6f9;
  --sf-gold: #e0a526;
  --sf-gold-deep: #a86f0c;
}
html[data-theme="evol-blue"] {
  --sf-canvas: rgba(1, 60, 110, 0.35);
  --sf-panel: rgba(255, 255, 255, 0.12);
  --sf-line: rgba(255, 255, 255, 0.35);
  --sf-gold: #ffb74d;
  --sf-gold-deep: #e08a00;
}

.content {
  max-width: 1120px;
}
.tagline {
  max-width: 62ch;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 28px;
  align-items: start;
}
@media (max-width: 820px) {
  .layout {
    grid-template-columns: 1fr;
  }
}

.canvas-box {
  position: relative;
  width: 100%;
  max-width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--sf-canvas);
  border: 1px solid var(--sf-line);
  border-radius: 10px;
  overflow: hidden;
}
.canvas-box[data-bg="dark"] {
  background: #1a212d;
}
.canvas-box[data-bg="light"] {
  background: #fbf6ea;
}
/* transparent: a checkerboard so it reads as "no background" */
.canvas-box.clear {
  background-color: var(--sf-canvas);
  background-image: conic-gradient(rgba(128, 128, 128, 0.14) 25%, transparent 0 50%, rgba(128, 128, 128, 0.14) 0 75%, transparent 0);
  background-size: 24px 24px;
}
.canvas-box canvas {
  display: block;
  width: 100%;
  height: 100%;
}
.readout {
  position: absolute;
  left: 12px;
  bottom: 10px;
  font-family: var(--sf-mono);
  font-size: 12px;
  color: #9aa3b2;
  font-variant-numeric: tabular-nums;
  pointer-events: none;
}

.side {
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.ctl {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.ctl-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}
.ctl-label {
  font-size: 0.72em;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sf-muted);
}
.val {
  font-family: var(--sf-mono);
  font-variant-numeric: tabular-nums;
  color: var(--sf-strong);
}

.side input[type="range"] {
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  accent-color: var(--sf-gold);
}
.side input[type="checkbox"] {
  padding: 0;
  width: 16px;
  height: 16px;
  accent-color: var(--sf-gold);
}
.opt {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ctl > .ctl-label + .chips + .ctl-label {
  margin-top: 6px;
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.chips button {
  margin: 0;
  padding: 4px 12px;
  border-radius: 999px;
  font-family: var(--sf-mono);
  font-size: 0.72em;
  color: var(--sf-strong);
  background: var(--sf-panel);
  border: 1px solid var(--sf-line);
}
.chips button:hover,
.chips button:focus {
  background: var(--sf-panel);
  border-color: var(--sf-gold);
}
.chips button[aria-pressed="true"] {
  background: var(--sf-gold);
  border-color: var(--sf-gold);
  color: #1a212d;
}
.side button:focus-visible,
.side input:focus-visible {
  outline: 2px solid var(--sf-gold);
  outline-offset: 2px;
}
#grow {
  margin: 0;
  align-self: flex-start;
}

.note {
  font-size: 0.85em;
  background: var(--sf-panel);
  border: 1px solid var(--sf-line);
  border-radius: 10px;
  padding: 12px 14px;
  min-height: 5em;
  margin: 0;
}

.explain {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  margin-top: 40px;
}
@media (max-width: 820px) {
  .explain {
    grid-template-columns: 1fr;
    gap: 18px;
  }
}
.explain h3 {
  margin: 0 0 6px;
}
.explain p {
  margin: 0;
  color: var(--sf-muted);
}
.explain code {
  font-family: var(--sf-mono);
  font-size: 0.9em;
  color: var(--sf-strong);
}

/* Save buttons: PNG in the theme's button style, SVG as an outline */
.btns {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.btns button {
  margin: 0;
}
.btns button.ghost {
  background-color: transparent;
  color: inherit;
  border: 2px solid var(--sf-line);
}
.btns button.ghost:hover,
.btns button.ghost:focus {
  background-color: var(--sf-panel);
  border-color: var(--sf-gold);
}