/* PN Tracker landing — matches practicenaturals.com design tokens */

:root {
  --color-primary: #57b058;
  --color-primary-dark: #489a49;
  --color-primary-light: #e8f5e9;
  --color-heading: #1a1a1a;
  --color-body: #333333;
  --color-muted: #666666;
  --color-light-bg: #f5f7f5;
  --color-dark-bg: #1a1a1a;
  --color-border: #e0e0e0;
  --color-link: #2b7bb9;
  --color-error: #c62828;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 6px 6px 18px rgba(0, 0, 0, 0.15);

  --max-width: 1200px;
  --header-height: 80px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-body);
  background: #ffffff;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--color-link); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
  color: var(--color-heading);
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: -0.01em;
}
h1 { font-size: 42px; }
h2 { font-size: 36px; margin-bottom: 16px; }
h3 { font-size: 28px; margin-bottom: 12px; }
h4 { font-size: 20px; margin-bottom: 8px; }

p { margin-bottom: 16px; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ============ Header ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.site-header .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 20px;
  color: var(--color-heading);
}
.brand img { width: 40px; height: 40px; }
.brand span { color: var(--color-primary); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  color: var(--color-body);
  font-size: 15px;
  font-weight: 500;
}
.nav-links a:hover { color: var(--color-primary-dark); text-decoration: none; }

/* ============ Buttons ============ */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 9999px;
  font-size: 16px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  text-decoration: none;
  line-height: 1;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-outline {
  background: transparent;
  color: var(--color-primary-dark);
  border-color: var(--color-primary);
}
.btn-outline:hover { background: var(--color-primary-light); }
.btn-lg { padding: 18px 40px; font-size: 18px; }

/* ============ Hero ============ */
.hero {
  padding: 80px 0 64px;
  background: linear-gradient(180deg, var(--color-primary-light) 0%, #ffffff 100%);
}
.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-eyebrow {
  display: inline-block;
  background: #fff;
  color: var(--color-primary-dark);
  padding: 6px 16px;
  border-radius: 9999px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 20px;
  border: 1px solid var(--color-primary-light);
}
.hero h1 {
  font-size: 48px;
  margin-bottom: 20px;
}
.hero h1 em {
  color: var(--color-primary-dark);
  font-style: normal;
}
.hero-sub {
  font-size: 19px;
  color: var(--color-muted);
  margin-bottom: 32px;
  max-width: 560px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-image {
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transform: rotate(-1deg);
  background: #000;
}
.hero-image img,
.hero-image video { width: 100%; height: auto; display: block; }

/* ============ Sections ============ */
section { padding: 80px 0; }
section.alt { background: var(--color-light-bg); }
.section-header { text-align: center; max-width: 720px; margin: 0 auto 64px; }
.section-eyebrow {
  display: inline-block;
  color: var(--color-primary-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-header h2 { margin-bottom: 16px; }
.section-header p { font-size: 18px; color: var(--color-muted); }

/* ============ Problem ============ */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.problem-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--shadow-sm);
}
.problem-card h4 { color: var(--color-heading); margin-bottom: 12px; }
.problem-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
  font-weight: 700;
}

/* ============ Features (screenshots) ============ */
.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 96px;
}
.feature-row:last-child { margin-bottom: 0; }
.feature-row.reverse { direction: rtl; }
.feature-row.reverse > * { direction: ltr; }
.feature-text h3 { margin-bottom: 16px; }
.feature-text p { font-size: 17px; color: var(--color-muted); margin-bottom: 16px; }
.feature-list { list-style: none; padding: 0; margin-top: 24px; }
.feature-list li {
  padding: 10px 0 10px 32px;
  position: relative;
  color: var(--color-body);
  font-size: 16px;
}
.feature-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 10px;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 18px;
  width: 24px;
  height: 24px;
  background: var(--color-primary-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.feature-screenshot {
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  background: #fff;
}
.feature-screenshot img { width: 100%; display: block; }

/* ============ Value stack ============ */
.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.value-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 28px;
  transition: transform 0.15s, box-shadow 0.15s;
}
.value-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.value-card h4 { margin-bottom: 8px; }
.value-card p { font-size: 15px; color: var(--color-muted); margin: 0; }
.value-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-weight: 700;
  font-size: 20px;
}

/* ============ Pricing ============ */
.pricing-card {
  max-width: 520px;
  margin: 0 auto;
  background: #fff;
  border: 2px solid var(--color-primary);
  border-radius: 20px;
  padding: 48px 40px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}
.price {
  font-size: 64px;
  font-weight: 700;
  color: var(--color-heading);
  line-height: 1;
  margin: 16px 0 4px;
}
.price span { font-size: 24px; color: var(--color-muted); font-weight: 500; }
.price-note { color: var(--color-muted); margin-bottom: 24px; }
.price-includes {
  list-style: none;
  padding: 0;
  text-align: left;
  max-width: 340px;
  margin: 24px auto 32px;
}
.price-includes li {
  padding: 8px 0 8px 28px;
  position: relative;
  color: var(--color-body);
}
.price-includes li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}
.price-badge {
  display: inline-block;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  padding: 4px 14px;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* ============ FAQ ============ */
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: 0;
}
.faq-item summary {
  list-style: none;
  padding: 24px 8px;
  cursor: pointer;
  font-weight: 600;
  font-size: 17px;
  color: var(--color-heading);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 24px;
  color: var(--color-primary);
  font-weight: 400;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item[open] summary { color: var(--color-primary-dark); }
.faq-body { padding: 0 8px 24px; color: var(--color-muted); }

/* ============ Waitlist form ============ */
.waitlist-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  text-align: center;
}
.waitlist-section h2 { color: #fff; }
.waitlist-section .section-header p { color: rgba(255, 255, 255, 0.9); }
.waitlist-form {
  max-width: 540px;
  margin: 0 auto;
  background: #fff;
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--shadow-lg);
  text-align: left;
  color: var(--color-body);
}
.form-row { margin-bottom: 16px; }
.form-row label {
  display: block;
  font-weight: 600;
  font-size: 14px;
  color: var(--color-heading);
  margin-bottom: 6px;
}
.form-row input,
.form-row select {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: 10px;
  font-size: 16px;
  font-family: inherit;
  color: var(--color-body);
  background: #fff;
  transition: border-color 0.15s;
}
.form-row input:focus,
.form-row select:focus {
  outline: none;
  border-color: var(--color-primary);
}
.form-row.honeypot {
  position: absolute;
  left: -9999px;
  visibility: hidden;
}
.form-submit { width: 100%; }
.form-note {
  font-size: 13px;
  color: var(--color-muted);
  text-align: center;
  margin-top: 12px;
  margin-bottom: 0;
}
.form-error {
  background: #fee;
  color: var(--color-error);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 16px;
}
.form-success {
  text-align: center;
  padding: 24px 8px;
}
.form-success .check {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin: 0 auto 20px;
}
.form-success h3 { color: var(--color-primary-dark); margin-bottom: 8px; }
.form-success p { color: var(--color-muted); font-size: 15px; }
.hidden { display: none !important; }

/* ============ Testimonial placeholder ============ */
.testimonial-placeholder {
  background: var(--color-light-bg);
  border: 2px dashed var(--color-border);
  border-radius: 16px;
  padding: 48px;
  text-align: center;
  color: var(--color-muted);
  max-width: 760px;
  margin: 0 auto;
  font-style: italic;
}

/* ============ Footer ============ */
.site-footer {
  background: var(--color-dark-bg);
  color: rgba(255, 255, 255, 0.8);
  padding: 48px 0 32px;
  font-size: 14px;
}
.site-footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.site-footer a { color: rgba(255, 255, 255, 0.9); }
.site-footer .footer-links { display: flex; gap: 24px; }
.site-footer .brand { color: #fff; font-size: 18px; }
.site-footer .brand span { color: var(--color-primary); }

/* ============ Responsive ============ */
@media (max-width: 900px) {
  h1 { font-size: 34px; }
  h2 { font-size: 28px; }
  h3 { font-size: 22px; }
  .hero { padding: 48px 0; }
  .hero .container { grid-template-columns: 1fr; gap: 40px; }
  .hero h1 { font-size: 36px; }
  .hero-sub { font-size: 17px; }
  .problem-grid { grid-template-columns: 1fr; }
  .feature-row,
  .feature-row.reverse { grid-template-columns: 1fr; direction: ltr; gap: 32px; margin-bottom: 64px; }
  .value-grid { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
  .section-header { margin-bottom: 40px; }
  .pricing-card { padding: 32px 24px; }
  .price { font-size: 48px; }
  .nav-links { display: none; }
}

@media (max-width: 540px) {
  .hero-actions .btn { flex: 1; text-align: center; }
  .site-footer .container { flex-direction: column; text-align: center; }
}