:root {
  --bg-1: #0f1020;
  --bg-2: #1c1f4a;
  --accent-1: #ff92c2;
  --accent-2: #ffd2e5;
  --text: #f7f7fb;
  --muted: #c8c8d9;
  --card: rgba(255, 255, 255, 0.08);
  --card-border: rgba(255, 255, 255, 0.15);
  --shadow: rgba(0, 0, 0, 0.25);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  color: var(--text);
  font-family: 'Poppins', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 800px at 20% 0%, var(--bg-2), var(--bg-1));
  overflow-x: hidden;
}

.bg-gradient::before,
.bg-gradient::after {
  content: '';
  position: fixed;
  inset: -10vh -10vw;
  background: radial-gradient(60vw 60vh at 80% 20%, rgba(255, 146, 194, 0.12), transparent),
              radial-gradient(50vw 50vh at 10% 80%, rgba(255, 210, 229, 0.08), transparent);
  pointer-events: none;
  z-index: -1;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px;
}

.center { display: grid; place-items: center; min-height: 100dvh; }

.hero { text-align: center; }
.title {
  font-family: 'Poppins', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  font-weight: 700;
  font-size: clamp(36px, 5vw, 64px);
  margin: 8px 0 8px;
  letter-spacing: 0.2px;
}
.subtitle { color: var(--muted); margin: 0 0 32px; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 14px;
  border: 1px solid var(--card-border);
  color: var(--text);
  background: rgba(255,255,255,0.04);
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}
.button:hover { transform: translateY(-2px); background: rgba(255,255,255,0.08); }
.button.primary { background: linear-gradient(135deg, var(--accent-1), var(--accent-2)); color: #20162a; border-color: transparent; }
.button.primary:hover { box-shadow: 0 6px 18px rgba(255,146,194,0.25); }
.button.disabled { pointer-events: none; opacity: 0.5; }

.footer { margin-top: 40px; color: var(--muted); }

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 18px;
  padding: 24px;
  box-shadow: 0 10px 30px var(--shadow);
}

.nav-link { color: var(--accent-2); text-decoration: none; opacity: 0.9; }
.nav-link:hover { text-decoration: underline; }

.typewriter { min-height: 160px; line-height: 1.8; font-size: 18px; }

.masonry { columns: 1 280px; column-gap: 16px; }
.masonry img { width: 100%; border-radius: 12px; margin: 0 0 16px; display: block; break-inside: avoid; cursor: zoom-in; }

.lightbox { position: fixed; inset: 0; background: rgba(0,0,0,0.7); display: grid; place-items: center; padding: 24px; }
.hidden { display: none !important; }
.lightbox img { max-width: min(92vw, 1080px); max-height: 72vh; border-radius: 12px; }
.lightbox-close { position: absolute; top: 20px; right: 20px; background: rgba(255,255,255,0.15); color: var(--text); border: none; font-size: 28px; border-radius: 10px; padding: 6px 10px; cursor: pointer; }

.quiz .q { margin: 16px 0; }
.quiz label { display: block; margin-bottom: 8px; color: var(--muted); }
.quiz input { width: 100%; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--card-border); background: rgba(255,255,255,0.06); color: var(--text); }
.success { margin-top: 10px; color: #b2ffcb; }

.letter { font-size: 18px; line-height: 1.9; white-space: pre-line; }
.confetti { position: fixed; inset: 0; pointer-events: none; }

.glow { box-shadow: 0 0 0 rgba(255, 146, 194, 0); }

.mystery { opacity: 0; filter: blur(8px); transition: opacity 800ms ease, filter 1200ms ease; }
.mystery.show { opacity: 1; filter: blur(0); }
.name { font-weight: 700; }
.hidden { display: none !important; }

/* Bottom popup and collage overlay */
.moments-popup {
  position: fixed; left: 24px; bottom: 24px;
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(6px);
  color: var(--text);
  border: 1px solid var(--card-border);
  border-radius: 14px; padding: 10px 14px;
  box-shadow: 0 10px 24px var(--shadow);
  cursor: pointer;
}

.collage-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.6); display: grid; place-items: center; padding: 24px; z-index: 20; }
.collage-content { width: min(960px, 92vw); background: var(--card); border: 1px solid var(--card-border); border-radius: 18px; padding: 20px; box-shadow: 0 20px 40px var(--shadow); }
.collage-close { position: absolute; margin-top: -8px; margin-left: calc(min(960px, 92vw) - 36px); background: rgba(255,255,255,0.15); color: var(--text); border: none; font-size: 24px; border-radius: 10px; padding: 4px 10px; cursor: pointer; }
.collage-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; margin-top: 12px; }
.collage-item { position: relative; overflow: hidden; border-radius: 12px; }
.collage-item img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.4s ease; }
.collage-item:hover img { transform: scale(1.05); }
.collage-annotation { position: absolute; left: 0; right: 0; bottom: 0; padding: 8px 10px; background: linear-gradient(180deg, rgba(0,0,0,0) 0%, rgba(0,0,0,0.45) 100%); color: #fff; font-size: 13px; opacity: 0; transform: translateY(6px); transition: opacity 0.25s ease, transform 0.25s ease; }
.collage-item:hover .collage-annotation { opacity: 1; transform: translateY(0); }


/* Results reveal styles */
.results { display: grid; gap: 12px; margin-top: 10px; }
.result-item { background: rgba(255,255,255,0.06); border: 1px solid var(--card-border); border-radius: 14px; padding: 14px 16px; }
.result-head { display: flex; align-items: center; gap: 10px; }
.result-index { font-weight: 600; background: rgba(255,255,255,0.08); border-radius: 10px; padding: 4px 8px; font-size: 12px; }
.result-question { flex: 1; margin-left: 8px; }
.badge { font-weight: 700; font-size: 12px; padding: 6px 10px; border-radius: 999px; }
.badge.ok { background: linear-gradient(135deg, #b2ffcb, #7cffb0); color: #0f2d1b; }
.badge.no { background: linear-gradient(135deg, #ffd2e5, #ff92c2); color: #20162a; }
.answer-line { display: grid; grid-template-columns: 120px 1fr; gap: 10px; margin-top: 10px; align-items: center; }
.answer-line .label { color: var(--muted); font-size: 13px; }
.answer-line .value { font-weight: 600; }
.answer-line.correct .value { color: var(--accent-2); }

.answers-more { margin-top: 8px; }
.answers-toggle { background: rgba(255,255,255,0.05); color: var(--text); border: 1px solid var(--card-border); border-radius: 999px; padding: 6px 10px; cursor: pointer; font-size: 12px; }
.answers-toggle:hover { background: rgba(255,255,255,0.1); }
.answers-all { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.pill { background: rgba(255,255,255,0.08); border: 1px solid var(--card-border); border-radius: 999px; padding: 6px 10px; font-size: 12px; }


/* SFX toggle */
.sfx-toggle {
  position: fixed; right: 24px; bottom: 24px;
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(6px);
  color: var(--text);
  border: 1px solid var(--card-border);
  border-radius: 14px; padding: 10px 12px;
  box-shadow: 0 10px 24px var(--shadow);
  cursor: pointer;
  z-index: 30;
}
.sfx-toggle:hover { background: rgba(255,255,255,0.12); }