/* ===== COMMON / RESET ===== */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --accent:#f59e0b;
  --accent-dark:#d97706;
  --purple:#7c3aed;
  --bg:#ffffff;
  --bg-surface:#f8fafc;
  --text:#1e293b;
  --text-light:#64748b;
  --text-lighter:#94a3b8;
  --card:#ffffff;
  --border:#e2e8f0;
  --success:#10b981;
  --radius:16px;
  --shadow-sm:0 1px 3px rgba(0,0,0,.06);
  --shadow:0 4px 24px rgba(0,0,0,.08);
  --shadow-lg:0 12px 40px rgba(0,0,0,.12);
}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','Hiragino Sans','Hiragino Kaku Gothic ProN',sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.8;
  overflow-x:hidden;
  min-height:100vh;
}
img{max-width:100%;height:auto}
a{color:inherit;text-decoration:none}

/* ===== UTILITY ===== */
.container{max-width:800px;margin:0 auto;padding:0 20px}
.section{padding:80px 0}
.section-title{
  font-size:clamp(24px,5vw,32px);
  font-weight:800;
  text-align:center;
  margin-bottom:12px;
  line-height:1.4;
}
.section-sub{
  font-size:15px;
  color:var(--text-light);
  text-align:center;
  margin-bottom:48px;
  line-height:1.8;
}
.highlight{background:linear-gradient(transparent 60%,#fef08a 60%)}
.text-gradient{
  background:linear-gradient(135deg,var(--primary),var(--purple));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.text-accent{color:var(--accent)}

/* ===== CTA BUTTONS ===== */
.cta-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  background:linear-gradient(135deg,var(--primary),var(--purple));
  color:#fff;border:none;font-size:18px;font-weight:700;
  padding:18px 48px;border-radius:60px;cursor:pointer;
  transition:all .3s;box-shadow:0 8px 32px rgba(37,99,235,.35);
  text-decoration:none;position:relative;overflow:hidden;
}
.cta-btn:hover{transform:translateY(-3px);box-shadow:0 12px 40px rgba(37,99,235,.45)}
.cta-btn::after{
  content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;
  background:linear-gradient(45deg,transparent,rgba(255,255,255,.15),transparent);
  transform:rotate(45deg);transition:all .5s;
}
.cta-btn:hover::after{left:100%}
.cta-btn-secondary{background:linear-gradient(135deg,var(--accent),var(--accent-dark));box-shadow:0 8px 32px rgba(245,158,11,.35)}
.cta-btn-secondary:hover{box-shadow:0 12px 40px rgba(245,158,11,.45)}
.cta-wrap{text-align:center;margin-top:40px}
.cta-note{font-size:12px;color:var(--text-lighter);margin-top:12px;text-align:center}

/* ===== ANIMATIONS ===== */
.fade-up{opacity:0;transform:translateY(24px);transition:all .6s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}

/* ===== FOOTER ===== */
footer{
  text-align:center;padding:32px 20px;
  font-size:12px;color:var(--text-lighter);
  border-top:1px solid var(--border);
}

/* ===== RESPONSIVE BASE ===== */
@media(max-width:600px){
  .section{padding:60px 0}
  .container{padding:0 16px}
}