:root {
  --color-bg: #fdfaf6;
  --color-surface: #ffffff;
  --color-border: #e8dfd3;
  --color-text: #2f2a25;
  --color-text-muted: #6b6259;
  --color-accent: #b5563c;
  --color-accent-dark: #8f4230;
  --color-accent-light: #f3e3da;
  --color-success-bg: #eef6ec;
  --color-success-text: #3a5c33;
  --color-warning-bg: #fbf1df;
  --color-warning-text: #7a5a1e;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --max-width: 1080px;
  --radius: 10px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

a {
  color: var(--color-accent-dark);
}

a:hover {
  color: var(--color-accent);
}

img {
  max-width: 100%;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ---------- Header / nav ---------- */

.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-logo {
  font-weight: 800;
  font-size: 1.3rem;
  text-decoration: none;
  color: var(--color-text);
}

.site-logo span {
  color: var(--color-accent);
}

.site-nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  font-size: 0.95rem;
}

.site-nav a {
  text-decoration: none;
  color: var(--color-text);
  font-weight: 600;
}

.site-nav a:hover {
  color: var(--color-accent);
}

/* ---------- Layout with sidebar ad rail ---------- */

.page-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding: 2rem 0 3rem;
}

@media (min-width: 900px) {
  .page-layout.with-rail {
    grid-template-columns: minmax(0, 1fr) 300px;
  }
}

.rail {
  display: none;
}

@media (min-width: 900px) {
  .rail {
    display: block;
  }
}

/* ---------- Cards / tool box ---------- */

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.tool-card h1 {
  margin-top: 0;
  font-size: 1.6rem;
}

.tool-intro {
  color: var(--color-text-muted);
  margin-top: -0.5rem;
}

.field-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 1.25rem 0;
}

@media (min-width: 640px) {
  .field-grid.cols-2 {
    grid-template-columns: 1fr 1fr;
  }
  .field-grid.cols-3 {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
}

.hint {
  display: block;
  font-weight: 400;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  margin-top: 0.2rem;
}

input[type="number"],
select {
  width: 100%;
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 1rem;
  background: #fff;
  color: var(--color-text);
}

input[type="number"]:focus,
select:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-weight: 400;
}

.checkbox-row input {
  margin-top: 0.3rem;
}

.btn {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
}

.btn:hover {
  background: var(--color-accent-dark);
}

.result-box {
  margin-top: 1.5rem;
  padding: 1.25rem;
  border-radius: var(--radius);
  background: var(--color-success-bg);
  color: var(--color-success-text);
  display: none;
}

.result-box.visible {
  display: block;
}

.result-box .result-yardage {
  font-size: 2rem;
  font-weight: 800;
  margin: 0 0 0.25rem;
}

.result-details {
  font-size: 0.9rem;
  margin-top: 0.5rem;
  opacity: 0.9;
}

.result-warning {
  margin-top: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  background: var(--color-warning-bg);
  color: var(--color-warning-text);
  font-size: 0.9rem;
  display: none;
}

.result-warning.visible {
  display: block;
}

/* ---------- Pinterest-ready shareable image ---------- */

.pin-graphic-row {
  margin-top: 1rem;
}

.btn-secondary {
  background: transparent;
  color: var(--color-accent-dark);
  border: 1.5px solid var(--color-accent-dark);
  padding: 0.6rem 1.25rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
}

.btn-secondary:hover {
  background: var(--color-accent-light);
}

/* ---------- Ad slots ---------- */

.ad-slot {
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  background: #f6f1ea;
  color: var(--color-text-muted);
  text-align: center;
  padding: 1rem;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.ad-slot .ad-slot-inner {
  min-height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: #fff;
}

.ad-slot.ad-slot-leaderboard .ad-slot-inner {
  min-height: 90px;
}

.ad-slot.ad-slot-incontent .ad-slot-inner {
  min-height: 120px;
}

/* ---------- Content / guides ---------- */

.content-card {
  padding: 2rem;
}

.content-card h1 {
  margin-top: 0;
}

.content-card h2 {
  margin-top: 2rem;
}

.related-tools {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.related-tools ul {
  padding-left: 1.2rem;
}

.tool-index-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

@media (min-width: 700px) {
  .tool-index-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.tool-index-grid .card h3 {
  margin-top: 0;
}

.tool-index-grid .card a.btn {
  margin-top: 0.75rem;
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 2rem 0;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.site-footer nav {
  margin-top: 0.5rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.affiliate-note {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  background: var(--color-accent-light);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin: 1.5rem 0;
}

.supplies-box {
  margin-top: 1.5rem;
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #fff;
}

.supplies-box h2 {
  margin-top: 0;
  font-size: 1.1rem;
}

.supplies-box ul {
  padding-left: 1.1rem;
}