/* turingtest.club */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { background: #FFFFFF; color: #1A1A1A; font-family: 'Work Sans', sans-serif; font-weight: 400; line-height: 1.6; }
.section-heading { font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 1.5rem; color: #1A1A1A; text-align: center; margin-bottom: 1.5rem; letter-spacing: -0.02em; }
.shape { position: absolute; pointer-events: none; }
.shape-tri { width: 60px; top: 10%; left: 5%; transform: rotate(15deg); }
.shape-circle { width: 40px; top: 20%; right: 10%; }
.shape-sq { width: 35px; bottom: 15%; left: 15%; transform: rotate(-10deg); }
.shape-zig { width: 100px; bottom: 25%; right: 8%; transform: rotate(5deg); }
.hero { position: relative; padding: 4rem 2rem; text-align: center; overflow: hidden; }
.hero-inner { position: relative; z-index: 1; max-width: 700px; margin: 0 auto; }
.hero-title { font-family: 'Montserrat', sans-serif; font-weight: 900; font-size: 3.5rem; letter-spacing: -0.02em; margin-bottom: 0.5rem; }
.c-pink { color: #FF3366; }
.c-blue { color: #3366FF; }
.c-yellow { color: #FFCC00; }
.hero-sub { font-size: 1.05rem; color: #1A1A1A; margin-bottom: 1rem; }
.score-ticker { font-family: 'Fira Mono', monospace; font-size: 0.85rem; color: #1A1A1A; margin-bottom: 1.25rem; }
.score-ticker strong { color: #00CC99; }
.play-btn { display: inline-block; background: #FF3366; color: #FFFFFF; font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 1rem; padding: 0.75rem 2rem; border-radius: 12px; text-decoration: none; }
.challenges { max-width: 800px; margin: 0 auto; padding: 2rem; }
.tab-bar { display: flex; justify-content: center; gap: 0.5rem; margin-bottom: 1.5rem; }
.tab { font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 0.8rem; padding: 0.4rem 1rem; border-radius: 8px; background: #F5F5F5; color: #1A1A1A; cursor: pointer; }
.tab.active { background: #3366FF; color: #FFFFFF; }
.challenge-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.challenge-card { background: #F5F5F5; border: 4px solid #FFCC00; padding: 1.25rem; border-radius: 12px; position: relative; }
.challenge-label { font-family: 'Fira Mono', monospace; font-size: 0.7rem; color: #8E8E93; display: block; margin-bottom: 0.5rem; }
.challenge-sample { font-size: 0.9rem; color: #1A1A1A; margin-bottom: 1rem; font-style: italic; }
.choice-btns { display: flex; gap: 0.5rem; }
.btn-human { flex: 1; background: #3366FF; color: #FFFFFF; font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 0.85rem; padding: 0.5rem; border: none; border-radius: 8px; cursor: pointer; }
.btn-ai { flex: 1; background: #FF3366; color: #FFFFFF; font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 0.85rem; padding: 0.5rem; border: none; border-radius: 8px; cursor: pointer; }
.results { max-width: 800px; margin: 0 auto; padding: 0 2rem 2rem; }
.results-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.75rem; }
.result-card { background: #F5F5F5; padding: 1rem; border-radius: 12px; text-align: center; }
.result-title { font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 0.9rem; margin-bottom: 0.5rem; }
.accuracy-bar { height: 10px; background: #E0E0E0; border-radius: 5px; margin-bottom: 0.25rem; }
.accuracy-fill { height: 100%; background: #3366FF; border-radius: 5px; }
.accuracy-fill.pink { background: #FF3366; }
.accuracy-fill.yellow { background: #FFCC00; }
.accuracy-fill.green { background: #00CC99; }
.accuracy-label { font-family: 'Fira Mono', monospace; font-size: 0.7rem; color: #1A1A1A; }
.leaderboard { max-width: 500px; margin: 0 auto; padding: 0 2rem 2rem; }
.leader-list { }
.leader-item { display: flex; align-items: center; gap: 1rem; padding: 0.5rem 0; border-bottom: 2px solid #F5F5F5; }
.leader-rank { font-family: 'Montserrat', sans-serif; font-weight: 900; font-size: 1.2rem; color: #FFCC00; min-width: 30px; }
.leader-name { font-weight: 500; flex: 1; }
.leader-score { font-family: 'Fira Mono', monospace; font-weight: 500; color: #00CC99; }
.footer { padding: 2rem; text-align: center; background: #F5F5F5; }
.footer-inner { max-width: 800px; margin: 0 auto; }
.footer-joke { font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 1rem; color: #FF3366; margin-bottom: 0.75rem; }
.footer-links { display: flex; justify-content: center; gap: 1.5rem; margin-bottom: 0.75rem; }
.flink { font-size: 0.85rem; color: #3366FF; text-decoration: none; }
.footer-copy { font-size: 0.75rem; color: #8E8E93; }
@media (max-width: 640px) { .challenge-grid { grid-template-columns: 1fr; } .results-grid { grid-template-columns: 1fr 1fr; } .hero-title { font-size: 2.2rem; } }
.fade-in { opacity: 0; transform: translateY(12px); transition: opacity 0.5s ease, transform 0.5s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }