/* Plankworth — marketing landing page styles
   Layout archetype: editorial / "Sunday paper" — serif headlines, generous whitespace, kraft-paper background */

:root {
  --walnut: #5d3a1f;
  --walnut-dark: #3d2614;
  --walnut-light: #8a5a35;
  --moss: #4a6741;
  --moss-dark: #2f4729;
  --amber: #d9a55a;
  --amber-dark: #b8862f;
  --paper: #f8f3e8;
  --paper-2: #f0e8d5;
  --paper-3: #e8dfc6;
  --bark: #2a1f17;
  --grain: #c9b896;

  --radius: 6px;
  --radius-lg: 12px;
  --shadow: 0 1px 3px rgba(42, 31, 23, 0.08), 0 4px 12px rgba(42, 31, 23, 0.06);
  --shadow-lg: 0 4px 16px rgba(42, 31, 23, 0.12), 0 12px 40px rgba(42, 31, 23, 0.08);

  --font-serif: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", system-ui, sans-serif;
}

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

html, body {
  background: var(--paper);
  color: var(--bark);
  font-family: var(--font-sans);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  background-image:
    radial-gradient(circle at 15% 5%, rgba(217, 165, 90, 0.08) 0%, transparent 35%),
    radial-gradient(circle at 85% 95%, rgba(74, 103, 65, 0.06) 0%, transparent 40%);
  min-height: 100vh;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 {
  font-family: var(--font-serif);
  color: var(--walnut-dark);
  letter-spacing: -0.01em;
}

h2 em, h1 em { font-style: italic; color: var(--moss); }

p { margin-bottom: 0.75rem; }
.muted { color: rgba(42, 31, 23, 0.55); }

a { color: var(--walnut); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--walnut-dark); }

/* ===== Header ===== */
.site-header {
  padding: 16px 0;
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(248, 243, 232, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--grain);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--walnut-dark);
}
.logo img { height: 32px; width: 32px; }
.logo-text {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

nav { display: flex; gap: 20px; align-items: center; }
.nav-link {
  text-decoration: none;
  color: var(--bark);
  font-size: 0.95rem;
  font-weight: 500;
}
.nav-link:hover { color: var(--walnut); }
.nav-cta {
  background: var(--walnut);
  color: var(--paper);
  padding: 9px 18px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
}
.nav-cta:hover { background: var(--walnut-dark); color: var(--paper); }

@media (max-width: 600px) {
  nav .nav-link { display: none; }
}

/* ===== Buttons ===== */
.btn-primary, .btn-secondary, .btn-link {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
  text-align: center;
}

.btn-primary {
  background: var(--walnut);
  color: var(--paper);
  box-shadow: 0 2px 8px rgba(93, 58, 31, 0.25);
}
.btn-primary:hover {
  background: var(--walnut-dark);
  transform: translateY(-1px);
  color: var(--paper);
  box-shadow: 0 4px 14px rgba(93, 58, 31, 0.35);
}

.btn-secondary {
  background: transparent;
  color: var(--walnut);
  border: 1.5px solid var(--walnut);
}
.btn-secondary:hover { background: var(--walnut); color: var(--paper); }

.btn-link {
  background: transparent;
  color: var(--moss-dark);
  padding: 12px 16px;
  text-decoration: underline;
  text-underline-offset: 4px;
}
.btn-link:hover { color: var(--walnut-dark); }

.btn-large { padding: 16px 36px; font-size: 1.05rem; }
.btn-block { width: 100%; }

/* ===== Sections ===== */
section { padding: 80px 0; }
@media (max-width: 600px) { section { padding: 56px 0; } }

.section-title {
  font-size: clamp(1.9rem, 3vw, 2.6rem);
  margin-bottom: 0.5rem;
  line-height: 1.15;
}

.section-sub {
  font-size: 1.1rem;
  color: rgba(42, 31, 23, 0.7);
  margin-bottom: 2.5rem;
}

.kicker {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--amber-dark);
  margin-bottom: 1rem;
}

/* ===== HERO ===== */
.hero {
  padding: 80px 0 64px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.7rem, 5.5vw, 4.4rem);
  line-height: 1.02;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.lede {
  font-size: 1.22rem;
  line-height: 1.55;
  max-width: 740px;
  margin: 1rem auto;
  color: rgba(42, 31, 23, 0.85);
}

.hero-cta {
  display: flex;
  gap: 8px;
  justify-content: center;
  align-items: center;
  margin: 2rem 0 0.5rem;
  flex-wrap: wrap;
}

.hero-proof {
  font-size: 0.88rem;
  color: rgba(42, 31, 23, 0.55);
  margin-top: 0.5rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 4rem;
  padding: 24px 0;
  border-top: 1px solid var(--grain);
  border-bottom: 1px solid var(--grain);
}
@media (max-width: 700px) { .hero-stats { grid-template-columns: 1fr; gap: 24px; } }

.stat { padding: 8px 16px; border-right: 1px solid var(--grain); }
.stat:last-child { border-right: none; }
@media (max-width: 700px) { .stat { border-right: none; border-bottom: 1px solid var(--grain); padding-bottom: 16px; } .stat:last-child { border-bottom: none; } }

.stat-num {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 600;
  color: var(--walnut-dark);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.85rem;
  color: rgba(42, 31, 23, 0.65);
  line-height: 1.4;
}

/* ===== THE FLIP ===== */
.flip {
  background: var(--paper-2);
  border-top: 1px solid var(--grain);
  border-bottom: 1px solid var(--grain);
}
.flip .section-title { text-align: center; margin-bottom: 3rem; }

.flip-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
@media (max-width: 800px) { .flip-grid { grid-template-columns: 1fr; } }

.flip-card {
  background: var(--paper);
  border: 1px solid var(--grain);
  border-radius: var(--radius-lg);
  padding: 36px;
}
.flip-old { opacity: 0.7; }
.flip-new {
  border-color: var(--moss);
  box-shadow: var(--shadow);
  position: relative;
}
.flip-new::before {
  content: '';
  position: absolute;
  top: -1px; left: -1px; right: -1px; height: 4px;
  background: var(--moss);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.flip-tag {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 700;
  color: var(--amber-dark);
  margin-bottom: 12px;
}
.flip-new .flip-tag { color: var(--moss-dark); }

.flip-card h3 {
  font-size: 1.35rem;
  margin-bottom: 16px;
  line-height: 1.3;
}

.flip-card ul { list-style: none; }
.flip-card li {
  padding: 8px 0 8px 24px;
  position: relative;
  color: rgba(42, 31, 23, 0.85);
}
.flip-card li::before {
  content: '·';
  position: absolute;
  left: 8px;
  font-weight: 700;
  color: var(--grain);
}
.flip-new li::before { content: '✓'; color: var(--moss); font-size: 0.85rem; top: 10px; }
.flip-new li em { color: var(--moss-dark); font-weight: 600; font-style: normal; }

/* ===== TEASER (tool preview) ===== */
.teaser { background: var(--paper); }
.teaser-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 900px) { .teaser-inner { grid-template-columns: 1fr; gap: 32px; } }

.teaser h2 { font-size: clamp(1.7rem, 2.6vw, 2.3rem); margin-bottom: 1rem; }
.teaser p { font-size: 1.05rem; color: rgba(42, 31, 23, 0.78); margin-bottom: 1.5rem; max-width: 540px; }

.teaser-mock {
  background: linear-gradient(180deg, var(--paper-2) 0%, var(--paper-3) 100%);
  border: 1px solid var(--grain);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow);
  transform: rotate(-1deg);
}

.mock-card .mock-species {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--walnut-dark);
  font-weight: 600;
  margin-bottom: 6px;
}
.mock-card .mock-confidence {
  font-size: 0.88rem;
  color: rgba(42, 31, 23, 0.65);
  margin-bottom: 24px;
}
.mock-card .mock-payout-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--moss-dark);
  margin-bottom: 4px;
  font-weight: 700;
}
.mock-card .mock-payout {
  font-family: var(--font-serif);
  font-size: 2.4rem;
  color: var(--moss-dark);
  font-weight: 600;
  line-height: 1.1;
  margin-bottom: 4px;
}
.mock-card .mock-extra {
  font-size: 0.88rem;
  color: rgba(42, 31, 23, 0.7);
  margin: 0;
}

/* ===== HOW IT WORKS ===== */
.how {
  background: var(--paper-2);
  border-top: 1px solid var(--grain);
}
.how .section-title { text-align: center; margin-bottom: 3rem; }

.how-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 800px) { .how-grid { grid-template-columns: 1fr; } }

.how-step {
  background: var(--paper);
  border: 1px solid var(--grain);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
}

.how-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--walnut);
  color: var(--paper);
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.how-step h3 { font-size: 1.3rem; margin-bottom: 10px; }
.how-step p { color: rgba(42, 31, 23, 0.78); }
.how-step em { color: var(--moss-dark); font-weight: 600; font-style: normal; }

/* ===== PRICING ===== */
.pricing { background: var(--paper); border-top: 1px solid var(--grain); text-align: center; }
.pricing .kicker { text-align: center; }
.pricing .section-title { max-width: 780px; margin: 0 auto 1rem; }
.pricing .section-sub { text-align: center; max-width: 600px; margin: 0 auto 3rem; }

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 2rem;
  text-align: left;
}
@media (max-width: 900px) { .pricing-grid { grid-template-columns: 1fr; max-width: 480px; margin: 2rem auto 0; } }

.price-card {
  background: var(--paper-2);
  border: 1px solid var(--grain);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.price-card.featured {
  background: var(--paper);
  border: 2px solid var(--walnut);
  box-shadow: var(--shadow-lg);
  transform: scale(1.02);
}
@media (max-width: 900px) { .price-card.featured { transform: none; } }

.featured-tag {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--amber);
  color: var(--walnut-dark);
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.price-card h3 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}
.price-card .price {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 600;
  color: var(--walnut-dark);
  margin-bottom: 4px;
}
.price-card .price span {
  font-size: 1rem;
  color: rgba(42, 31, 23, 0.6);
  font-family: var(--font-sans);
  font-weight: 400;
}
.price-card .price-meta {
  font-size: 0.9rem;
  color: rgba(42, 31, 23, 0.6);
  margin-bottom: 20px;
}

.price-card ul {
  list-style: none;
  flex: 1;
  margin-bottom: 24px;
}
.price-card li {
  padding: 8px 0 8px 28px;
  position: relative;
  font-size: 0.95rem;
  color: rgba(42, 31, 23, 0.85);
}
.price-card li::before {
  content: '✓';
  position: absolute;
  left: 8px;
  color: var(--moss);
  font-weight: 700;
}

/* ===== FAQ ===== */
.faq { background: var(--paper-2); border-top: 1px solid var(--grain); }
.faq .section-title { text-align: center; margin-bottom: 2.5rem; }

.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-list details {
  background: var(--paper);
  border: 1px solid var(--grain);
  border-radius: var(--radius);
  padding: 18px 22px;
  cursor: pointer;
  transition: box-shadow 0.15s ease;
}
.faq-list details[open] {
  box-shadow: var(--shadow);
  border-color: var(--walnut-light);
}

.faq-list summary {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--walnut-dark);
  list-style: none;
  position: relative;
  padding-right: 28px;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: '+';
  position: absolute;
  right: 0;
  top: -2px;
  font-size: 1.4rem;
  color: var(--walnut);
  font-weight: 400;
  transition: transform 0.2s ease;
}
.faq-list details[open] summary::after { transform: rotate(45deg); }

.faq-list details p {
  margin: 12px 0 0;
  color: rgba(42, 31, 23, 0.8);
  font-size: 0.97rem;
  line-height: 1.6;
}

/* ===== CAPTURE ===== */
.capture {
  background: var(--walnut-dark);
  color: var(--paper);
  text-align: center;
  border-top: 1px solid var(--grain);
}
.capture h2 { color: var(--paper); font-size: clamp(1.8rem, 2.8vw, 2.4rem); margin-bottom: 1rem; }
.capture p { color: rgba(248, 243, 232, 0.85); max-width: 620px; margin: 0 auto 2rem; }

.capture-form {
  display: flex;
  gap: 12px;
  max-width: 520px;
  margin: 0 auto;
  flex-wrap: wrap;
}

.capture-form input {
  flex: 1;
  min-width: 0;
  padding: 13px 16px;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: var(--font-sans);
  background: var(--paper);
  color: var(--bark);
}
.capture-form input#zip { flex: 0 0 110px; }

.capture-form .btn-primary {
  background: var(--amber);
  color: var(--walnut-dark);
  padding: 13px 28px;
}
.capture-form .btn-primary:hover { background: var(--amber-dark); transform: translateY(-1px); }

.form-status {
  margin-top: 16px;
  padding: 10px 18px;
  border-radius: var(--radius);
  display: inline-block;
}
.form-status.success { background: rgba(74, 103, 65, 0.4); color: var(--paper); }
.form-status.error { background: rgba(161, 61, 45, 0.4); color: var(--paper); }

/* ===== Footer ===== */
.site-footer {
  background: var(--bark);
  color: rgba(248, 243, 232, 0.7);
  padding: 36px 0;
  text-align: center;
  font-size: 0.9rem;
}
.site-footer a { color: var(--amber); }
.site-footer .muted { color: rgba(248, 243, 232, 0.5); margin-top: 8px; max-width: 720px; margin-left: auto; margin-right: auto; }