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

:root {
  --color-primary: #000000;
  --color-primary-hover: #222222;
  --color-primary-light: #F0F0F0;
  --color-bg: #FFFFFF;
  --color-text: #000000;
  --color-text-secondary: #666666;
  --color-text-tertiary: #999999;
  --color-border: #D0D0D0;
  --color-border-light: #E8E8E8;
  --color-accent: #E8734A;
  --radius-sm: 2px;
  --font: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

html {
  font-family: var(--font);
  font-size: 16px;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body { min-height: 100vh; }

/* ─── Sticky Nav ──────────────────────────────────────────── */

.hp-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border-light);
}
.hp-nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.hp-nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-text);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
}
.hp-nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}
.hp-nav-links a {
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
}
.hp-nav-link-muted { color: var(--color-text-secondary) !important; }
.hp-nav-cta {
  background: var(--color-primary);
  color: #fff !important;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
}
.hp-nav-cta:hover { background: var(--color-primary-hover); }

.hp-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hp-nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text);
  margin: 4px 0;
  transition: transform 0.2s;
}

/* ─── Buttons ─────────────────────────────────────────────── */

.hp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font);
  text-decoration: none;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.15s;
}
.hp-btn-primary { background: var(--color-primary); color: #fff; }
.hp-btn-primary:hover { background: var(--color-primary-hover); }
.hp-btn-secondary { background: var(--color-primary-light); color: var(--color-primary); }
.hp-btn-secondary:hover { background: #E0E0E0; }
.hp-btn-full { width: 100%; }

/* ─── Hero ────────────────────────────────────────────────── */

.hp-hero { padding: 80px 24px 60px; }
.hp-hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hp-hero-text h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
}
.hp-hero-sub {
  font-size: 18px;
  color: var(--color-text-secondary);
  margin-top: 16px;
  line-height: 1.6;
  max-width: 480px;
}
.hp-hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 32px;
}

/* ─── Sections ────────────────────────────────────────────── */

.hp-section { padding: 80px 24px; }
.hp-section-alt { background: #FAFAFA; }
.hp-section-inner { max-width: 1100px; margin: 0 auto; }
.hp-section-inner h2 {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -1px;
  text-align: center;
}
.hp-section-sub {
  font-size: 18px;
  color: var(--color-text-secondary);
  text-align: center;
  margin-top: 12px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* ─── Features Grid ───────────────────────────────────────── */

.hp-features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 48px;
}
.hp-feature { text-align: center; }
.hp-feature-icon { font-size: 32px; margin-bottom: 12px; }
.hp-feature h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.hp-feature p { font-size: 14px; color: var(--color-text-secondary); line-height: 1.6; }

/* ─── Pricing ─────────────────────────────────────────────── */

.hp-pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 700px;
  margin: 48px auto 0;
}
.hp-pricing-card {
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  padding: 32px 28px;
  position: relative;
}
.hp-pricing-featured {
  border-color: var(--color-primary);
  border-width: 2px;
}
.hp-pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
}
.hp-pricing-name { font-size: 20px; font-weight: 700; }
.hp-pricing-price {
  font-size: 48px;
  font-weight: 800;
  margin-top: 8px;
  letter-spacing: -1px;
}
.hp-pricing-period {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}
.hp-pricing-features {
  list-style: none;
  margin-bottom: 28px;
}
.hp-pricing-features li {
  font-size: 14px;
  padding: 6px 0;
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-text-secondary);
}
.hp-pricing-features li:last-child { border-bottom: none; }

/* ─── FAQ ─────────────────────────────────────────────────── */

.hp-faq-list {
  max-width: 700px;
  margin: 48px auto 0;
}
.hp-faq-item { border-bottom: 1px solid var(--color-border-light); }
.hp-faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 0;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  font-family: var(--font);
  color: var(--color-text);
}
.hp-faq-arrow {
  font-size: 12px;
  color: var(--color-text-tertiary);
  transition: transform 0.2s;
}
.hp-faq-arrow.open { transform: rotate(180deg); }
.hp-faq-a {
  display: none;
  padding: 0 0 18px;
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}
.hp-faq-a.open { display: block; }

/* ─── Footer ──────────────────────────────────────────────── */

.hp-footer {
  border-top: 1px solid var(--color-border-light);
  padding: 32px 24px;
}
.hp-footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.hp-footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 700;
}
.hp-footer-links { display: flex; gap: 24px; }
.hp-footer-links a {
  font-size: 13px;
  color: var(--color-text-secondary);
  text-decoration: none;
}
.hp-footer-links a:hover { color: var(--color-text); }
.hp-footer-copy {
  font-size: 12px;
  color: var(--color-text-tertiary);
}

/* ─── Interactive Widget ──────────────────────────────────── */

.hp-hero-widget {
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  overflow: hidden;
}
.hp-widget-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border-light);
}
.hp-widget-title {
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}
.hp-widget-tabs {
  display: flex;
  gap: 2px;
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  padding: 2px;
}
.hp-widget-tab {
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 500;
  font-family: var(--font);
  color: var(--color-text-secondary);
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s;
}
.hp-widget-tab:hover { color: var(--color-text); }
.hp-widget-tab.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 600;
}
.hp-widget-body { padding: 16px; }
.hp-widget-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 12px;
}
.hp-widget-stat {
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}
.hp-widget-stat-label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-tertiary);
  margin-bottom: 4px;
}
.hp-widget-stat-value { font-size: 18px; font-weight: 700; }
.hp-widget-stat-value span {
  font-size: 12px;
  font-weight: 400;
  color: var(--color-text-secondary);
}
.hp-widget-chart {
  height: 160px;
  position: relative;
}

/* ─── Responsive ──────────────────────────────────────────── */

@media (max-width: 900px) {
  .hp-hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hp-hero-text h1 { font-size: 36px; }
  .hp-hero-widget { max-width: 500px; }
  .hp-features { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .hp-nav-toggle { display: block; }
  .hp-nav-links {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border-light);
    padding: 16px 24px;
    gap: 12px;
  }
  .hp-nav-links.open { display: flex; }
  .hp-nav-cta { text-align: center; }

  .hp-hero { padding: 48px 16px 32px; }
  .hp-hero-text h1 { font-size: 30px; }
  .hp-hero-sub { font-size: 16px; }
  .hp-hero-actions { flex-direction: column; }
  .hp-hero-actions .hp-btn { width: 100%; }

  .hp-section { padding: 48px 16px; }
  .hp-section-inner h2 { font-size: 28px; }

  .hp-features { grid-template-columns: 1fr; gap: 24px; }
  .hp-pricing-grid { grid-template-columns: 1fr; }

  .hp-widget-header { flex-direction: column; gap: 8px; align-items: flex-start; }
  .hp-widget-chart { height: 120px; }

  .hp-footer-inner { flex-direction: column; text-align: center; }
}