:root {
  --bg: #f6f7fb;
  --bg-soft: #f9fafc;
  --panel: #ffffff;
  --text: #0f172a;
  --muted: #5b6473;
  --border: #e5e7eb;
  --primary: #e63946;
  --primary-2: #f28b8b;
  --shadow: 0 18px 46px rgba(15, 23, 42, 0.08);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
}
.page { min-height: 100vh; background: var(--bg-soft); }
a { color: inherit; text-decoration: none; }

.nav {
  max-width: 1200px; margin: 0 auto; padding: 18px 24px;
  display: grid; grid-template-columns: auto 1fr auto;
  gap: 16px; align-items: center;
  position: sticky; top: 0; backdrop-filter: blur(12px);
  background: rgba(255,255,255,0.9); border-bottom: 1px solid var(--border); z-index: 10;
  box-shadow: 0 10px 30px rgba(15,23,42,0.08);
}
.brand { display: flex; align-items: center; gap: 12px; }
.logo { width: 44px; height: 44px; border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  display: grid; place-items: center; font-weight: 800; color: #fff; box-shadow: 0 14px 30px rgba(124,93,255,0.35);
}
.brand-name { font-weight: 800; letter-spacing: 0.02em; }
.brand-sub { color: var(--muted); font-size: 13px; }
.nav-links { display: flex; gap: 12px; flex-wrap: wrap; color: var(--muted); }
.nav-links a { padding: 8px 10px; border-radius: 12px; transition: color .15s ease, background .15s ease; }
.nav-links a:hover { background: rgba(255,255,255,0.05); color: #fff; }
.nav-actions { display: flex; gap: 10px; }
.btn {
  padding: 10px 14px; border-radius: 999px; font-weight: 700;
  border: 1px solid var(--border); cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
  display: inline-flex; gap: 8px; align-items: center;
}
.btn.primary { background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: #fff; border: none; box-shadow: 0 14px 40px rgba(230,57,70,0.2); }
.btn.ghost { background: #fff; color: var(--text); }
.btn:hover { transform: translateY(-1px); }
main { max-width: 1200px; margin: 0 auto; padding: 40px 24px 80px; display: grid; gap: 38px; }
.hero { padding: 40px 0 20px; }
.hero h1 { font-size: 38px; margin: 8px 0 12px; }
.muted { color: var(--muted); }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 16px 0 8px; }
.pill-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.pill { background: rgba(230,57,70,0.12); border: 1px solid rgba(230,57,70,0.3); padding: 8px 12px; border-radius: 999px; color: var(--text); }
.badge { display: inline-flex; gap: 6px; padding: 6px 10px; border-radius: 999px; background: rgba(0,0,0,0.04); color: var(--text); font-weight: 700; border: 1px solid var(--border); }
.badge.ghost { background: rgba(0,0,0,0.02); }
.section h2 { margin: 0 0 10px; font-size: 28px; }
.grid { display: grid; gap: 16px; align-items: start; }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid.three { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 18px; padding: 18px; box-shadow: var(--shadow); }
.bubble { padding: 10px 12px; border-radius: 12px; border: 1px solid var(--border); background: #fff; margin-top: 8px; }
.bubble.user { color: var(--primary); border-color: rgba(230,57,70,0.2); background: #fff; }
.bubble.bot { color: var(--text); background: #fff; border-color: var(--border); }
.pricing .price { font-size: 32px; font-weight: 800; margin: 6px 0; }
.list { list-style: none; padding: 0; margin: 12px 0; color: var(--muted); display: grid; gap: 6px; }
.studio-card { display: flex; justify-content: space-between; gap: 16px; align-items: center; flex-wrap: wrap; }
.footer { max-width: 1200px; margin: 0 auto; padding: 30px 24px 40px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; flex-wrap: wrap; color: var(--muted); }
.pwyw .amount-display { display: flex; justify-content: space-between; align-items: baseline; margin: 12px 0 8px; }
.pwyw .amount-display div { font-size: 34px; font-weight: 800; letter-spacing: 0.02em; }
.pwyw .range-wrap { width: 100%; padding: 10px 0 6px; }
.pwyw input[type=range] {
  width: 100%;
  appearance: none;
  margin: 0;
  height: 12px;
  border-radius: 999px;
  background:
    linear-gradient(90deg, var(--primary), var(--primary)) no-repeat,
    linear-gradient(90deg, #e9ecf3, #e9ecf3);
  background-size: var(--range-fill, 0%) 100%, 100% 100%;
  box-shadow: inset 0 1px 3px rgba(15,23,42,0.12);
  transition: box-shadow 0.15s ease, background-size 0.2s ease;
}
.pwyw input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--primary);
  box-shadow: 0 6px 12px rgba(0,0,0,0.18);
  cursor: pointer;
  margin-top: -6px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.pwyw input[type=range]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--primary);
  box-shadow: 0 6px 12px rgba(0,0,0,0.18);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.pwyw input[type=number] {
  width: 100%; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--border);
  background: #fff; color: var(--text); font-weight: 700; outline: none;
}
.pwyw input[type=number]:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(230,57,70,0.15); }
.pwyw .pwyw-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 6px 0 10px;
}
.pwyw .chip {
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  padding: 6px 10px;
  border-radius: 12px;
  cursor: pointer;
  transition: transform 0.1s ease, border 0.15s ease, background 0.15s ease;
}
.pwyw .chip:hover { transform: translateY(-1px); border-color: var(--primary); }
.pwyw button {
  width: 100%; padding: 12px 16px; border-radius: 12px; border: none;
  background: linear-gradient(120deg, var(--primary), var(--primary-2)); color: #fff; font-weight: 800;
  cursor: pointer; margin-top: 10px; transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.pwyw button:hover { transform: translateY(-1px); box-shadow: 0 10px 26px rgba(230,57,70,0.28); }
.pwyw button:disabled { opacity: 0.6; cursor: not-allowed; }
.pwyw .status { min-height: 18px; margin-top: 6px; }
.pwyw .small { font-size: 13px; color: var(--muted); }
@media (max-width: 900px) {
  .nav { grid-template-columns: 1fr; text-align: center; }
  .nav-links, .nav-actions { justify-content: center; }
  .hero h1 { font-size: 30px; }
}