:root {
  --gray-0: #fff; --gray-50: #f9f9f9; --gray-75: #f3f3f3; --gray-100: #ededed;
  --gray-150: #dfdfdf; --gray-200: #cdcdcd; --gray-300: #afafaf; --gray-400: #8f8f8f;
  --gray-500: #5d5d5d; --gray-600: #414141; --gray-700: #303030; --gray-800: #212121;
  --gray-900: #181818; --gray-1000: #0d0d0d;
  --green-500: #00a240; --red-300: #ff6764; --red-500: #e02e2a; --blue-500: #0169cc;
  --surface: var(--gray-0); --surface-secondary: var(--gray-50); --surface-tertiary: var(--gray-75);
  --text-primary: var(--gray-1000); --text-secondary: var(--gray-500); --text-tertiary: var(--gray-400);
  --border: rgba(0,0,0,0.1); --bg-hover: rgba(0,0,0,0.04); --bg-active: rgba(0,0,0,0.07);
  --radius-md: 0.5rem; --radius-lg: 0.75rem; --radius-full: 999px;
  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --shadow-pop: 0 0 0 1px rgba(0,0,0,0.05), 0 8px 24px rgba(0,0,0,0.12), 0 2px 6px rgba(0,0,0,0.08);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body { font-family: var(--font-sans); background: var(--surface); color: var(--text-primary); font-size: 14px; line-height: 1.45; -webkit-font-smoothing: antialiased; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
a { color: inherit; text-decoration: none; }
svg { display: block; }
input, select, textarea { font-family: inherit; font-size: 14px; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; height: 36px; padding: 0 14px; border-radius: var(--radius-full); font-size: 14px; font-weight: 600; letter-spacing: -0.01em; transition: background 0.12s, opacity 0.12s; white-space: nowrap; }
.btn-primary { background: var(--gray-1000); color: var(--gray-0); }
.btn-primary:hover { background: var(--gray-800); }
.btn-outline { border: 1px solid var(--border); background: var(--surface); }
.btn-outline:hover { background: var(--bg-hover); }
.btn-ghost { color: var(--text-secondary); }
.btn-ghost:hover { background: var(--bg-hover); color: var(--text-primary); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; }
.field input, .field select { width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--surface); outline: none; transition: border-color 0.12s; }
.field input:focus, .field select:focus { border-color: var(--gray-400); }

.auth-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; background: var(--surface-secondary); padding: 24px; }
.auth-card { width: 100%; max-width: 380px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow-pop); }
.auth-brand { display: flex; align-items: center; gap: 8px; margin-bottom: 24px; }
.auth-mark { width: 28px; height: 28px; border-radius: 8px; background: var(--gray-1000); color: var(--gray-0); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 15px; }
.brand-img { display: block; border-radius: 7px; }
.auth-title { font-size: 18px; font-weight: 600; letter-spacing: -0.01em; }
.auth-h1 { font-size: 22px; font-weight: 600; letter-spacing: -0.02em; }
.auth-sub { font-size: 14px; color: var(--text-secondary); margin: 4px 0 20px; }
.auth-error { background: #fdecec; color: var(--red-500); font-size: 13px; padding: 8px 12px; border-radius: var(--radius-md); margin-bottom: 16px; }
.auth-foot { font-size: 12px; color: var(--text-tertiary); text-align: center; margin-top: 16px; }
.auth-alt { display: block; text-align: center; font-size: 13px; color: var(--text-secondary); margin-top: 14px; }
.auth-alt a { color: var(--text-primary); font-weight: 600; }
.auth-back { display: block; text-align: center; font-size: 13px; color: var(--text-secondary); margin-top: 10px; }
.auth-back:hover { color: var(--text-primary); }

.lp-nav { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between; height: 64px; padding: 0 32px; background: rgba(255,255,255,0.85); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); }
.lp-brand { display: flex; align-items: center; gap: 10px; }
.lp-brand .auth-mark { width: 30px; height: 30px; }
.lp-brand-name { font-size: 17px; font-weight: 600; letter-spacing: -0.01em; }
.lp-nav-actions { display: flex; align-items: center; gap: 8px; }

.lp-hero { max-width: 880px; margin: 0 auto; padding: 120px 32px 80px; text-align: center; }
.lp-eyebrow { display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-secondary); border: 1px solid var(--border); border-radius: var(--radius-full); padding: 5px 12px; margin-bottom: 28px; }
.lp-hero h1 { font-size: 64px; line-height: 1.02; font-weight: 600; letter-spacing: -0.03em; }
.lp-hero p { font-size: 19px; color: var(--text-secondary); max-width: 620px; margin: 24px auto 36px; line-height: 1.5; }
.lp-cta { display: flex; align-items: center; justify-content: center; gap: 12px; }
.lp-cta .btn { height: 46px; padding: 0 22px; font-size: 15px; }

.lp-section { max-width: 1080px; margin: 0 auto; padding: 56px 32px; }
.lp-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.lp-feature { border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; background: var(--surface); transition: border-color 0.16s, transform 0.16s; }
.lp-feature:hover { border-color: var(--gray-300); transform: translateY(-2px); }
.lp-feature-mark { width: 36px; height: 36px; border-radius: var(--radius-md); background: var(--gray-1000); color: var(--gray-0); display: flex; align-items: center; justify-content: center; font-weight: 700; margin-bottom: 16px; }
.lp-feature h3 { font-size: 16px; font-weight: 600; letter-spacing: -0.01em; }
.lp-feature p { font-size: 14px; color: var(--text-secondary); margin-top: 8px; line-height: 1.5; }

.lp-strip { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--surface-secondary); }
.lp-strip-inner { max-width: 1080px; margin: 0 auto; padding: 40px 32px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; text-align: center; }
.lp-stat-value { font-size: 34px; font-weight: 600; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.lp-stat-label { font-size: 13px; color: var(--text-secondary); margin-top: 4px; }

.lp-foot { max-width: 1080px; margin: 0 auto; padding: 40px 32px 64px; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--border); color: var(--text-secondary); font-size: 13px; }

@media (max-width: 860px) {
  .lp-hero h1 { font-size: 44px; }
  .lp-grid, .lp-strip-inner { grid-template-columns: 1fr; }
  .lp-foot { flex-direction: column; gap: 12px; }
}

.lp-hero-sub { font-size: 13px; color: var(--text-tertiary); margin-top: 16px; }
.lp-section-head { text-align: center; max-width: 640px; margin: 0 auto 40px; }
.lp-section-head h2 { font-size: 34px; font-weight: 600; letter-spacing: -0.02em; }
.lp-section-head p { font-size: 16px; color: var(--text-secondary); margin-top: 10px; }
.lp-grid { grid-template-columns: repeat(3, 1fr); }
.lp-feature-mark { font-size: 18px; }

.lp-how { background: var(--surface-secondary); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.lp-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: 1080px; margin: 0 auto; }
.lp-step { text-align: center; padding: 8px; }
.lp-step-num { width: 44px; height: 44px; border-radius: var(--radius-full); background: var(--gray-1000); color: var(--gray-0); display: flex; align-items: center; justify-content: center; font-size: 18px; font-weight: 700; margin: 0 auto 16px; }
.lp-step h3 { font-size: 17px; font-weight: 600; }
.lp-step p { font-size: 14px; color: var(--text-secondary); margin-top: 8px; line-height: 1.5; }

.lp-price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; max-width: 1000px; margin: 0 auto; }
.lp-price-card { position: relative; border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px 24px; display: flex; flex-direction: column; gap: 14px; background: var(--surface); }
.lp-price-card.featured { border-color: var(--gray-1000); box-shadow: var(--shadow-pop); }
.lp-price-badge { position: absolute; top: -11px; left: 24px; background: var(--gray-1000); color: var(--gray-0); font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: var(--radius-full); }
.lp-price-name { font-size: 15px; font-weight: 600; color: var(--text-secondary); }
.lp-price-amt { font-size: 36px; font-weight: 700; letter-spacing: -0.02em; }
.lp-price-amt span { font-size: 15px; font-weight: 500; color: var(--text-secondary); }
.lp-price-feats { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.lp-price-feats li { font-size: 14px; color: var(--text-secondary); padding-left: 20px; position: relative; }
.lp-price-feats li::before { content: '✓'; position: absolute; left: 0; color: var(--green-500); font-weight: 700; }
.lp-price-card .btn { width: 100%; }

.lp-cta-band { text-align: center; padding: 80px 32px; max-width: 720px; margin: 0 auto; }
.lp-cta-band h2 { font-size: 32px; font-weight: 600; letter-spacing: -0.02em; }
.lp-cta-band p { font-size: 16px; color: var(--text-secondary); margin: 12px 0 28px; }

@media (max-width: 860px) {
  .lp-grid, .lp-steps, .lp-price-grid { grid-template-columns: 1fr; }
  .lp-section-head h2 { font-size: 26px; }
}