/* magazine/retro — 회고 (3컬럼: Keep/Problem/Try, 1920x1080) */
:root {
  --color-primary: {{tk_primary}};
  --color-secondary: {{tk_secondary}};
  --color-accent: {{tk_accent}};
  --color-bg: {{tk_background}};
  --color-text: {{tk_text_primary}};
  --color-muted: {{tk_text_secondary}};
  --grid: 16px;
  --radius: {{tk_radius}};
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { width: 1920px; height: 1080px; }
body {
  font-family: 'Pretendard', 'Noto Sans KR', sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
}
.slide { width: 1920px; height: 1080px; display: flex; flex-direction: column; }
.slide__inner {
  flex: 1;
  padding: calc(var(--grid) * 5) calc(var(--grid) * 6);
  display: flex;
  flex-direction: column;
  gap: calc(var(--grid) * 3);
}
.retro__header { display: flex; flex-direction: column; gap: var(--grid); }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  font-weight: 600;
  font-size: 20px;
}
.retro__title {
  font-size: 72px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-primary);
}
.retro__columns {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: calc(var(--grid) * 2);
}
.retro__col {
  background: var(--color-bg);
  border: 1px solid var(--color-muted);
  border-radius: var(--radius);
  padding: calc(var(--grid) * 2.5);
  display: flex;
  flex-direction: column;
  gap: calc(var(--grid) * 1.5);
}
.retro__col h2 {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.01em;
  padding-bottom: var(--grid);
  border-bottom: 3px solid var(--color-accent);
}
.retro__col--keep h2 { color: #2b8a3e; }
.retro__col--problem h2 { color: #c92a2a; }
.retro__col--try h2 { color: var(--color-accent); }
.retro__col ul { list-style: none; display: flex; flex-direction: column; gap: var(--grid); }
.retro__col li {
  font-size: 24px;
  line-height: 1.5;
  color: var(--color-text);
  padding-left: calc(var(--grid) * 1.5);
  position: relative;
}
.retro__col li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}