@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;700;800&display=swap');

:root {
  --white: #ffffff;
  --off-white: #f8fafc;
  --light-gray: #e2e8f0;
  --medium: #94a3b8;
  --dark: #0f172a;
  --blue: #2563eb;
  --blue-light: #3b82f6;
  --blue-wash: rgba(37,99,235,0.06);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--off-white);
  color: var(--dark);
  line-height: 1.7;
}

.qt-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--light-gray);
}

.qt-nav {
  max-width: 1280px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.8rem 2rem;
}

.qt-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.qt-brand svg { width: 32px; height: 32px; }
.qt-brand span { font-weight: 800; font-size: 1.3rem; color: var(--dark); letter-spacing: -0.5px; }

.qt-links ul { list-style: none; display: flex; gap: 2rem; }
.qt-links a { color: var(--medium); text-decoration: none; font-size: 0.88rem; font-weight: 500; transition: color 0.2s; }
.qt-links a:hover, .qt-links a.sel { color: var(--blue); }

.qt-hb { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.qt-hb span { width: 22px; height: 2px; background: var(--dark); transition: 0.3s; }
.qt-hb.on span:first-child { transform: rotate(45deg) translate(4px,5px); }
.qt-hb.on span:nth-child(2) { opacity: 0; }
.qt-hb.on span:last-child { transform: rotate(-45deg) translate(4px,-5px); }

/* Hero */
.clean-hero {
  max-width: 1280px; margin: 0 auto;
  padding: 5rem 2rem 4rem;
  display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center;
}

.ch-text h1 {
  font-size: 3rem; font-weight: 800; line-height: 1.15;
  color: var(--dark); margin-bottom: 1.5rem; letter-spacing: -1px;
}

.ch-text h1 em { font-style: normal; color: var(--blue); }

.ch-text p { color: var(--medium); font-size: 1.05rem; margin-bottom: 2rem; }

.blue-btn {
  display: inline-block; padding: 12px 32px;
  background: var(--blue); color: var(--white);
  text-decoration: none; border-radius: 8px;
  font-weight: 600; font-size: 0.9rem;
  transition: background 0.2s;
}

.blue-btn:hover { background: var(--blue-light); }

.ch-visual {
  background: var(--blue-wash); border-radius: 16px; padding: 2rem;
  display: flex; flex-direction: column; gap: 1rem; align-items: center;
}

.ch-visual .mini-stat {
  display: flex; gap: 1.5rem;
}

.ms-item {
  background: var(--white); border-radius: 10px; padding: 1rem 1.5rem;
  text-align: center; border: 1px solid var(--light-gray);
}

.ms-item .v { font-size: 1.5rem; font-weight: 800; color: var(--blue); }
.ms-item .l { font-size: 0.72rem; color: var(--medium); text-transform: uppercase; letter-spacing: 1px; }

/* Notice strip */
.notice-strip {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
  max-width: 1280px; margin: 0 auto;
  border: 1px solid var(--light-gray); border-radius: 12px; overflow: hidden;
  margin-bottom: 3rem;
}

.ns-item {
  padding: 2rem; text-align: center;
  border-right: 1px solid var(--light-gray);
  background: var(--white);
}

.ns-item:last-child { border-right: none; }

.ns-item .ns-ico { font-size: 1.8rem; margin-bottom: 0.5rem; }
.ns-item h3 { font-size: 0.95rem; font-weight: 700; color: var(--dark); margin-bottom: 0.4rem; }
.ns-item p { color: var(--medium); font-size: 0.85rem; }

/* Game */
.game-panel {
  max-width: 1280px; margin: 0 auto; padding: 3rem 2rem; text-align: center;
}

.game-panel h2 { font-size: 1.8rem; font-weight: 800; color: var(--dark); margin-bottom: 1.5rem; }

.gp-frame {
  width: 100%; max-width: 960px; margin: 0 auto;
  aspect-ratio: 16/9; border-radius: 12px; overflow: hidden;
  border: 1px solid var(--light-gray); box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}

.gp-frame iframe { width: 100%; height: 100%; border: none; }

/* Features */
.feature-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem;
  max-width: 1280px; margin: 0 auto; padding: 2rem;
}

.fg-card {
  background: var(--white); border: 1px solid var(--light-gray);
  border-radius: 12px; padding: 2rem;
}

.fg-card h3 { font-weight: 700; color: var(--dark); margin-bottom: 0.5rem; font-size: 1rem; }
.fg-card p { color: var(--medium); font-size: 0.88rem; }

/* Text page */
.text-pg {
  max-width: 800px; margin: 0 auto; padding: 4rem 2rem;
}

.text-pg h1 { font-size: 2.2rem; font-weight: 800; color: var(--dark); margin-bottom: 1.5rem; }
.text-pg h2 { font-size: 1.2rem; font-weight: 700; color: var(--dark); margin: 2rem 0 0.6rem; }
.text-pg p { color: var(--medium); margin-bottom: 1rem; font-size: 0.95rem; }
.text-pg ul { color: var(--medium); margin: 0.5rem 0 1rem 1.5rem; }

/* Play */
.play-section { text-align: center; padding: 3rem 2rem 1rem; }
.play-section h1 { font-size: 2.2rem; font-weight: 800; color: var(--dark); margin-bottom: 1rem; }
.play-box { max-width: 700px; margin: 0 auto 2rem; background: var(--white); border-radius: 10px; padding: 1.2rem; border: 1px solid var(--light-gray); }
.play-box p { color: var(--medium); font-size: 0.88rem; }

/* Footer */
.qt-footer {
  background: var(--dark); padding: 2.5rem; text-align: center; margin-top: 3rem;
}

.qf-links { display: flex; justify-content: center; gap: 2rem; flex-wrap: wrap; margin-bottom: 1.2rem; }
.qf-links a { color: var(--medium); text-decoration: none; font-size: 0.82rem; transition: color 0.2s; }
.qf-links a:hover { color: var(--white); }

.qf-rg { margin-top: 1rem; padding-top: 1rem; border-top: 1px solid rgba(255,255,255,0.1); }
.qf-rg p { color: var(--medium); font-size: 0.78rem; margin-bottom: 0.4rem; }
.qf-rg a { color: var(--blue-light); text-decoration: none; margin: 0 0.6rem; font-size: 0.78rem; }
.qf-rg a:hover { text-decoration: underline; }
.qf-copy { margin-top: 1rem; color: var(--medium); font-size: 0.7rem; opacity: 0.5; }

/* Age */
.age-cover { position: fixed; inset: 0; background: rgba(15,23,42,0.92); z-index: 9999; display: flex; align-items: center; justify-content: center; }
.age-form { background: var(--white); border-radius: 16px; padding: 2.5rem; text-align: center; max-width: 420px; width: 90%; }
.age-form h2 { font-size: 1.5rem; font-weight: 800; color: var(--dark); margin-bottom: 0.8rem; }
.age-form p { color: var(--medium); margin-bottom: 1.8rem; font-size: 0.92rem; }
.age-acts { display: flex; gap: 1rem; justify-content: center; }
.age-acts button { padding: 10px 30px; border: none; border-radius: 8px; font-weight: 700; font-size: 0.88rem; cursor: pointer; transition: 0.2s; font-family: 'Inter', sans-serif; }
.aq-yes { background: var(--blue); color: var(--white); }
.aq-yes:hover { background: var(--blue-light); }
.aq-no { background: var(--off-white); color: var(--medium); border: 1px solid var(--light-gray) !important; }
.aq-no:hover { color: #ef4444; border-color: #ef4444 !important; }

@media (max-width: 768px) {
  .qt-hb { display: flex; }
  .qt-links ul { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; width: 100%; background: rgba(255,255,255,0.98); padding: 1rem 0; border-bottom: 1px solid var(--light-gray); }
  .qt-links ul.open { display: flex; }
  .qt-links li { text-align: center; padding: 0.6rem 0; }
  .qt-nav { position: relative; }
  .clean-hero { grid-template-columns: 1fr; padding: 3rem 2rem; }
  .ch-text h1 { font-size: 2.2rem; }
  .notice-strip { grid-template-columns: 1fr; }
  .ns-item { border-right: none; border-bottom: 1px solid var(--light-gray); }
  .feature-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) { .ch-text h1 { font-size: 1.7rem; } .ch-visual .mini-stat { flex-direction: column; } }