:root {
  --ink:     #0D0D0C;
  --ink-90:  #1A1A18;
  --ink-80:  #2E2E2A;
  --ink-60:  #5A5A52;
  --ink-40:  #8A8A82;
  --ink-20:  #BFBDB5;
  --ink-10:  #D8D3CB;
  --cream:   #EDE8E0;
  --white:   #F8F6F1;
  --accent:  #C4773C;
  --accent-h:#E8944A;
  --sans: 'DM Sans', 'Noto Sans KR', sans-serif;
  --mono: 'IBM Plex Mono', monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-smooth: cubic-bezier(0.25, 0.1, 0.25, 1);
}

/* ── LIGHT THEME ── */
[data-theme="light"] {
  --ink:     #F8F6F1;
  --ink-90:  #EFEDE8;
  --ink-80:  #D8D3CB;
  --ink-60:  #BFBDB5;
  --ink-40:  #5A5A52;
  --ink-20:  #2E2E2A;
  --ink-10:  #1A1A18;
  --cream:   #0D0D0C;
  --white:   #FFFFFF;
}
[data-theme="light"] .grain { opacity: 0.015; }
[data-theme="light"] .cursor-glow {
  background: radial-gradient(circle, rgba(196,119,60,0.08) 0%, transparent 70%);
}
[data-theme="light"] .pg-header {
  background: linear-gradient(to bottom, var(--ink) 60%, transparent);
}
[data-theme="light"] .pg-cell {
  background: rgba(0,0,0,0.02);
  border-color: rgba(0,0,0,0.07);
}
[data-theme="light"] .pg-cell:hover { border-color: rgba(196,119,60,0.2); }
[data-theme="light"] .pg-ctrl input[type="range"] {
  background: rgba(0,0,0,0.12);
}
[data-theme="light"] ::selection { background: var(--accent); color: #fff; }

/* ── THEME TOGGLE ── */
.theme-toggle {
  width: 36px; height: 36px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  cursor: pointer; transition: all 0.4s var(--ease);
}
.theme-toggle:hover { background: rgba(255,255,255,0.12); }
.theme-toggle svg { width: 16px; height: 16px; fill: var(--cream); transition: fill 0.3s, transform 0.4s var(--ease); }
.theme-toggle:hover svg { transform: rotate(30deg); }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme="light"] .theme-toggle {
  background: rgba(0,0,0,0.05);
  border-color: rgba(0,0,0,0.1);
}
[data-theme="light"] .theme-toggle:hover { background: rgba(0,0,0,0.1); }
[data-theme="light"] .theme-toggle .icon-sun { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body {
  background: var(--ink);
  color: var(--cream);
  font-family: var(--sans);
  min-height: 100vh;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }

.grain {
  position: fixed; inset: 0; pointer-events: none; z-index: 9998;
  background: url("data:image/svg+xml,%3CsvgviewBox='0 0 200 200'xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise'baseFrequency='0.65'numOctaves='3'stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25'height='100%25'filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.03;
}
.cursor-glow {
  position: fixed; width: 400px; height: 400px; border-radius: 50%;
  background: radial-gradient(circle, rgba(196,119,60,0.06) 0%, transparent 70%);
  pointer-events: none; z-index: 9997;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s;
}

.pg-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; gap: 24px;
  padding: 20px clamp(24px, 4vw, 48px);
  background: linear-gradient(to bottom, var(--ink) 60%, transparent);
}
.pg-header__logo {
  font-size: 22px; font-weight: 900; letter-spacing: -0.03em;
  transition: color 0.3s;
}
.pg-header__logo:hover { color: var(--accent); }
.pg-header__title {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--ink-40);
}
.pg-header__back {
  margin-left: auto;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--ink-40);
  transition: color 0.3s;
}
.pg-header__back:hover { color: var(--accent); }

.pg-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(10px, 1.2vw, 20px);
  padding: clamp(10px, 1.5vw, 24px);
  padding-top: 72px;
}

.pg-cell {
  background: rgba(255,255,255,0.015);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 6px;
  padding: clamp(10px, 1vw, 16px);
  display: flex;
  flex-direction: column;
  min-height: 0;
  position: relative;
  transition: border-color 0.4s var(--ease);
  overflow: hidden;
  aspect-ratio: 4 / 3;
}
.pg-cell:hover { border-color: rgba(196,119,60,0.15); }

.pg-cell__label {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--ink-40); margin-bottom: 6px;
  display: flex; align-items: baseline; gap: 8px; flex-shrink: 0;
}
.pg-cell__label-kr {
  font-family: 'Noto Sans KR', sans-serif; font-size: 9px;
  letter-spacing: 0.05em; text-transform: none; color: var(--ink-60);
}
.pg-cell__canvas-wrap {
  flex: 1; min-height: 0; position: relative; border-radius: 4px; overflow: hidden;
}
.pg-cell__canvas-wrap canvas {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  display: block;
}
.pg-cell__metrics {
  font-family: var(--mono); font-size: 9px; color: var(--ink-40);
  letter-spacing: 0.06em; margin-top: 6px; white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis; flex-shrink: 0;
}
.pg-cell__hint {
  font-family: var(--mono); font-size: 8px; color: var(--ink-60);
  letter-spacing: 0.04em; margin-top: 3px; line-height: 1.5; flex-shrink: 0;
}
.pg-cell__hint .accent { color: var(--accent); }

.pg-upload-btn {
  display: inline-block; cursor: pointer;
  border: 1px solid rgba(196,119,60,0.4); border-radius: 3px;
  padding: 2px 8px; margin-left: 6px;
  font-family: var(--mono); font-size: 8px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--accent);
  transition: all 0.3s var(--ease);
}
.pg-upload-btn:hover { background: rgba(196,119,60,0.1); border-color: var(--accent); }

.pg-action-btn {
  display: inline-block; cursor: pointer;
  border: 1px solid rgba(196,119,60,0.4); border-radius: 3px;
  padding: 2px 8px; margin-left: 6px; background: transparent;
  font-family: var(--mono); font-size: 8px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--accent);
  transition: all 0.3s var(--ease);
}
.pg-action-btn:hover { background: rgba(196,119,60,0.15); border-color: var(--accent); }
.pg-action-btn:active { background: rgba(196,119,60,0.25); }
[data-theme="light"] .pg-action-btn { border-color: rgba(196,119,60,0.5); }

.pg-ctrl {
  display: inline-flex; align-items: center; gap: 4px; margin-left: 6px;
}
.pg-ctrl input[type="range"] {
  width: 60px; height: 3px; -webkit-appearance: none; appearance: none;
  background: rgba(255,255,255,0.15); border-radius: 2px; outline: none;
  cursor: pointer;
}
.pg-ctrl input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 10px; height: 10px; border-radius: 50%;
  background: var(--accent); cursor: pointer;
}

@media (max-width: 860px) {
  .pg-grid { grid-template-columns: 1fr 1fr; }
  .pg-cell__hint { display: none; }
  .cursor-glow { display: none; }
  .pg-header { padding: 14px 16px; }
}
@media (max-width: 600px) {
  .pg-grid { grid-template-columns: 1fr; }
}