@font-face {
  font-family: "LemonMilk";
  src: url("fonts/LEMONMILK-Bold.otf") format("opentype");
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: "LemonMilk";
  src: url("fonts/LEMONMILK-Medium.otf") format("opentype");
  font-weight: 500;
  font-display: swap;
}

:root {
  color-scheme: dark;

  /* Potts Plays Games! blueprint theme — mirrors Theme.swift AppTheme */
  --bg-top: #0d2961;
  --bg-bottom: #124285;
  --card: rgba(255, 255, 255, 0.10);
  --card-border: rgba(255, 255, 255, 0.18);
  --card-active: rgba(51, 140, 242, 0.35);
  --text: #ffffff;
  --text-dim: rgba(255, 255, 255, 0.65);
  --accent: #8cd1ff;
  --danger: #ff8c73;
  --win: #ffd459;
  --success: #4dc773;

  --grid-minor: rgba(255, 255, 255, 0.07);
  --grid-major: rgba(255, 255, 255, 0.15);
  --grid-spacing: 26px;
}

* { box-sizing: border-box; }

html {
  /* Prevent iOS Safari from auto-shrinking text inside narrow flex items (e.g. the format select) */
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  padding: 0 0 3rem;
  background-color: var(--bg-bottom);
  background-image:
    repeating-linear-gradient(to right, var(--grid-major) 0 1px, transparent 1px calc(var(--grid-spacing) * 4)),
    repeating-linear-gradient(to bottom, var(--grid-major) 0 1px, transparent 1px calc(var(--grid-spacing) * 4)),
    repeating-linear-gradient(to right, var(--grid-minor) 0 1px, transparent 1px var(--grid-spacing)),
    repeating-linear-gradient(to bottom, var(--grid-minor) 0 1px, transparent 1px var(--grid-spacing)),
    linear-gradient(135deg, var(--bg-top), var(--bg-bottom));
  background-attachment: fixed;
}

header {
  padding: 1.5rem 1.25rem 0.5rem;
  text-align: center;
}

header h1 {
  margin: 0 0 0.4rem;
  font-family: "LemonMilk", -apple-system, sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 0.02em;
}
.sub, .hint { color: var(--text-dim); font-size: 0.85rem; }

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.panel {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 1rem;
  backdrop-filter: blur(6px);
}

#dropzone {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

button {
  background: var(--success);
  color: #06331a;
  border: none;
  border-radius: 10px;
  padding: 0.7rem 1.1rem;
  font-family: "LemonMilk", -apple-system, sans-serif;
  font-weight: 500;
  font-size: 0.95rem;
  cursor: pointer;
  touch-action: manipulation;
}

#chooseBtn {
  background: var(--accent);
  color: #04283f;
}

button:disabled { opacity: 0.4; cursor: default; }

.control-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.9rem;
}

.control-row label {
  min-width: 6.5rem;
  font-size: 0.9rem;
}

.control-row input[type="range"] { flex: 1; accent-color: var(--accent); }

.checkbox-row {
  flex-wrap: wrap;
}
.checkbox-row label {
  min-width: auto;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.checkbox-row input[type="checkbox"] { accent-color: var(--accent); }

.nerd-menu { margin-bottom: 0.9rem; }
.nerd-menu summary {
  cursor: pointer;
  font-family: "LemonMilk", -apple-system, sans-serif;
  font-weight: 500;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--accent);
  padding: 0.3rem 0;
  user-select: none;
  list-style: none;
}
.nerd-menu summary::-webkit-details-marker { display: none; }
.nerd-menu summary::marker { content: ""; }
.nerd-menu summary::before {
  content: "\25B8";
  display: inline-block;
  width: 1em;
  transition: transform 0.15s ease;
}
.nerd-menu[open] summary::before { transform: rotate(90deg); }
.nerd-menu .checkbox-row { margin: 0.6rem 0 0; }
.nerd-menu .scale-row {
  flex-direction: column;
  align-items: stretch;
  margin: 0.9rem 0 0;
}
.nerd-menu .scale-row label {
  min-width: auto;
  margin-bottom: 0.3rem;
}
.nerd-menu .size-row label { min-width: auto; }

.scale-buttons {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.scale-btn {
  flex: 1 1 4.5rem;
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 0.45rem 0.5rem;
  font-family: "LemonMilk", -apple-system, sans-serif;
  font-weight: 500;
  font-size: 0.78rem;
}
.scale-btn.active {
  background: var(--accent);
  color: #04283f;
  border-color: var(--accent);
}

.nerd-menu .size-row {
  flex-wrap: wrap;
  margin: 0.9rem 0 0;
}

.size-row input[type="number"] {
  width: 5.5rem;
  padding: 0.4rem;
  font-size: 1rem;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--card-border);
  border-radius: 6px;
  color: #111;
}
.size-row select {
  padding: 0.4rem;
  font-size: 1rem;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--card-border);
  border-radius: 6px;
  color: #111;
}

.download-row { margin-top: 0.25rem; margin-bottom: 0; }
.download-row #downloadBtn { flex: 1; }
.download-row select {
  padding: 0.7rem 0.5rem;
  font-size: 1rem;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  color: #111;
  flex: 0 0 6rem;
}

.preview-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 560px) {
  .preview-wrap { grid-template-columns: 1fr; }
}

.preview-box {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 0.75rem;
  text-align: center;
  backdrop-filter: blur(6px);
}
.preview-box h2 {
  font-family: "LemonMilk", -apple-system, sans-serif;
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  margin: 0 0 0.5rem;
}

canvas {
  max-width: 100%;
  height: auto;
  background: #fff;
  border-radius: 6px;
}

footer {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8rem;
  margin-top: 2rem;
}