/* GolfTechReady — sample site
   Paper, forest, hairline. Consulting, not SaaS. */

:root {
  --forest: #1E3D24;
  --deep: #142818;
  --accent: #3D6B45;
  --cream: #F4F0E6;
  --ink: #1A1F1A;
  --muted: #5C665C;
  --card: #FFFCF6;
  --hairline: #C9C2B2;
  --white: #FFFEFA;
  --focus: #1E3D24;
  --danger: #7A2E24;
  --display: "Fraunces", "Iowan Old Style", "Palatino Linotype", Palatino, serif;
  --sans: "Source Sans 3", "Source Sans Pro", "Segoe UI", sans-serif;
  --measure: 38rem;
  --wide: 70rem;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --radius: 2px;
  --header-h: 4.25rem;
  --shadow: 0 1px 0 rgba(26, 31, 26, 0.06);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: light;
}

html:focus-within { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--cream);
  background-image:
    radial-gradient(ellipse 120% 80% at 50% -10%, rgba(30, 61, 36, 0.035), transparent 50%),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(26, 31, 26, 0.012) 2px,
      rgba(26, 31, 26, 0.012) 3px
    );
  min-height: 100%;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: var(--forest); text-underline-offset: 0.18em; }
a:hover { color: var(--deep); }

:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -4rem;
  z-index: 100;
  background: var(--forest);
  color: var(--cream);
  padding: 0.5rem 0.85rem;
  text-decoration: none;
  font-weight: 600;
}
.skip-link:focus { top: 0.5rem; }

/* —— Notice —— */
.notice {
  background: var(--deep);
  color: #E8E2D4;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: center;
  padding: 0.4rem var(--gutter);
  font-weight: 600;
}
.notice strong { font-weight: 700; color: #FFFCF6; }

/* —— Header —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(244, 240, 230, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hairline);
}
.site-header.is-stuck { box-shadow: 0 8px 24px rgba(20, 40, 24, 0.06); }

.header-inner {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 0.7rem var(--gutter);
  display: flex;
  align-items: center;
  gap: 1.25rem;
  min-height: var(--header-h);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--forest);
  flex-shrink: 0;
}
.brand:hover { color: var(--deep); }
.brand-mark {
  width: 42px;
  height: 42px;
  overflow: hidden;
  border: 1px solid var(--hairline);
  background: var(--card);
  flex-shrink: 0;
}
.brand-mark img {
  width: 100%;
  height: 142%;
  object-fit: cover;
  object-position: center 8%;
  transform: scale(1.18);
  transform-origin: center 20%;
}
.wordmark {
  font-family: var(--sans);
  font-weight: 650;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  line-height: 1;
}

.nav-toggle {
  display: none;
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--hairline);
  color: var(--forest);
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.4rem 0.7rem;
  cursor: pointer;
}

.nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.15rem 1.15rem;
}
.nav > ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 0.15rem 1.15rem;
}
.nav a, .nav .nav-btn {
  font-size: 0.95rem;
  font-weight: 550;
  color: var(--ink);
  text-decoration: none;
  background: none;
  border: 0;
  font-family: inherit;
  cursor: pointer;
  padding: 0.25rem 0;
}
.nav a:hover, .nav .nav-btn:hover,
.nav a.is-active, .nav .nav-btn[aria-expanded="true"] {
  color: var(--forest);
}
.nav a.is-active { box-shadow: inset 0 -2px 0 var(--forest); }

.has-sub { position: relative; }
.nav-sub {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0.45rem 0;
  position: absolute;
  top: calc(100% + 0.55rem);
  left: 0;
  min-width: 17.5rem;
  background: var(--card);
  border: 1px solid var(--hairline);
  box-shadow: 0 12px 32px rgba(20, 40, 24, 0.08);
  z-index: 20;
}
.has-sub.is-open .nav-sub,
.has-sub:hover .nav-sub,
.has-sub:focus-within .nav-sub { display: block; }
.nav-sub a {
  display: block;
  padding: 0.5rem 0.95rem;
  font-weight: 500;
  box-shadow: none;
}
.nav-sub a:hover { background: rgba(30, 61, 36, 0.05); }
.nav-sub small {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 400;
}

.header-cta { margin-left: 0.5rem; }

/* —— Buttons —— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1.2;
  text-decoration: none;
  border: 1px solid transparent;
  padding: 0.72rem 1.15rem;
  cursor: pointer;
  border-radius: var(--radius);
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn-primary {
  background: var(--forest);
  color: #F7F2E6;
  border-color: var(--forest);
}
.btn-primary:hover { background: var(--deep); color: #FFFCF6; border-color: var(--deep); }
.btn-ghost {
  background: transparent;
  color: var(--forest);
  border-color: var(--forest);
}
.btn-ghost:hover { background: var(--forest); color: #F7F2E6; }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.7rem; }

/* —— Layout —— */
.wrap {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.section { padding: 4.5rem 0; }
.section + .section { border-top: 1px solid var(--hairline); }
.section-tight { padding: 3.25rem 0; }

.kicker {
  font-size: 0.75rem;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.75rem;
}
h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 0.85rem;
}
h1 { font-size: clamp(2.15rem, 5vw, 3.4rem); font-weight: 500; }
h2 { font-size: clamp(1.65rem, 3.2vw, 2.25rem); }
h3 { font-size: 1.28rem; font-weight: 550; }
.lede {
  font-size: 1.2rem;
  line-height: 1.55;
  color: var(--muted);
  max-width: 40rem;
  margin: 0 0 1.5rem;
}
.prose { max-width: var(--measure); }
.prose p, .prose ul, .prose ol { margin: 0 0 1.1rem; }
.prose ul { padding-left: 1.2rem; }
.prose li { margin-bottom: 0.4rem; }
.muted { color: var(--muted); }
.rule { border: 0; border-top: 1px solid var(--hairline); margin: 2rem 0; }

/* —— Hero —— */
.hero {
  padding: 4.75rem 0 4rem;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: end;
}
.hero-art {
  border: 1px solid var(--hairline);
  background: var(--card);
  padding: 1.75rem 1.5rem 1.4rem;
}
.hero-art figcaption {
  margin-top: 0.85rem;
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

/* —— Problem strip —— */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--hairline);
  background: var(--card);
}
.problem {
  padding: 1.4rem 1.25rem 1.5rem;
  border-right: 1px solid var(--hairline);
}
.problem:last-child { border-right: 0; }
.problem .num {
  font-family: var(--display);
  font-style: italic;
  color: var(--accent);
  font-size: 1.1rem;
  display: block;
  margin-bottom: 0.45rem;
}
.problem h3 { font-size: 1.1rem; margin-bottom: 0.4rem; }
.problem p { margin: 0; color: var(--muted); font-size: 0.95rem; }

/* —— Cards —— */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.15rem;
}
.card {
  background: var(--card);
  border: 1px solid var(--hairline);
  padding: 1.45rem 1.35rem 1.4rem;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  min-height: 100%;
}
a.card:hover { border-color: var(--forest); }
.card h3 { margin-bottom: 0.5rem; }
.card p { color: var(--muted); margin: 0 0 1rem; flex: 1; }
.card .more {
  font-weight: 650;
  font-size: 0.9rem;
  color: var(--forest);
}
.who-grid .card { min-height: 0; }

.badge, .model-badge, .field-badge, .coming-badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.18rem 0.45rem;
  border: 1px solid var(--forest);
  color: var(--forest);
  margin-bottom: 0.7rem;
  width: fit-content;
}
.field-badge { border-color: var(--hairline); color: var(--muted); }
.coming-badge { border-style: dashed; color: var(--muted); border-color: var(--muted); }

/* —— Proof / letter —— */
.proof-card {
  background: var(--card);
  border: 1px solid var(--hairline);
  padding: 1.75rem 1.75rem 1.5rem;
}
.letter {
  background: var(--card);
  border: 1px solid var(--hairline);
  padding: 2rem 2.1rem 1.6rem;
  max-width: 40rem;
}
.letter p {
  font-family: var(--display);
  font-size: 1.2rem;
  line-height: 1.5;
  font-weight: 400;
  margin: 0 0 1.1rem;
}
.letter footer {
  font-family: var(--sans);
  font-size: 0.92rem;
  color: var(--muted);
  font-style: normal;
}

/* —— Steps —— */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  counter-reset: step;
}
.step {
  border-top: 1px solid var(--forest);
  padding-top: 0.9rem;
}
.step::before {
  counter-increment: step;
  content: "0" counter(step);
  font-family: var(--display);
  font-style: italic;
  color: var(--accent);
  display: block;
  margin-bottom: 0.4rem;
}
.step h3 { font-size: 1.15rem; }
.step p { margin: 0; color: var(--muted); font-size: 0.95rem; }

/* —— Two col —— */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}
.split-wide { grid-template-columns: 1.15fr 0.85fr; }

/* —— Article —— */
.article-hero { padding: 3.5rem 0 1.5rem; }
.article { padding-bottom: 4rem; }
.article .prose { font-size: 1.08rem; }
.article h2 { margin-top: 2.2rem; }
.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 1.1rem;
}
.share-draft {
  margin-top: 3rem;
  padding: 1.4rem 1.4rem 1.2rem;
  border: 1px dashed var(--hairline);
  background: rgba(255, 252, 246, 0.6);
}
.share-draft h3 { font-size: 1.05rem; }
.share-block {
  margin: 0 0 1rem;
  padding: 0.85rem 1rem;
  background: var(--card);
  border: 1px solid var(--hairline);
  font-size: 0.95rem;
}
.share-block strong {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.4rem;
}

/* —— ROI calc —— */
.calc {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: start;
}
.calc-panel {
  background: var(--card);
  border: 1px solid var(--hairline);
  padding: 1.5rem 1.4rem;
}
.calc-out { position: sticky; top: calc(var(--header-h) + 2.2rem); }
.field {
  display: grid;
  gap: 0.3rem;
  margin-bottom: 0.95rem;
}
.field label {
  font-size: 0.88rem;
  font-weight: 650;
  color: var(--ink);
}
.field .hint { font-size: 0.8rem; color: var(--muted); font-weight: 400; }
.field input, .field select, .field textarea {
  font: inherit;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--hairline);
  padding: 0.55rem 0.7rem;
  width: 100%;
  border-radius: var(--radius);
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--forest);
}
.mix-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.6rem;
}
.stat {
  border-bottom: 1px solid var(--hairline);
  padding: 0.85rem 0;
}
.stat:last-child { border-bottom: 0; }
.stat dt {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 650;
  margin: 0 0 0.25rem;
}
.stat dd {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.35rem, 2.4vw, 1.85rem);
  color: var(--forest);
  letter-spacing: -0.02em;
}
.stat .range-note { font-family: var(--sans); font-size: 0.85rem; color: var(--muted); margin-top: 0.25rem; }
.assumptions {
  margin-top: 1rem;
  font-size: 0.88rem;
  color: var(--muted);
}
.assumptions summary {
  cursor: pointer;
  font-weight: 650;
  color: var(--forest);
  margin-bottom: 0.5rem;
}
.assumptions ul { margin: 0.4rem 0 0; padding-left: 1.1rem; }

/* —— Forms —— */
.form-grid { display: grid; gap: 0.15rem; max-width: 36rem; }
.form-note { font-size: 0.85rem; color: var(--muted); margin: 0.4rem 0 1rem; }
.thanks-state {
  display: none;
  background: var(--card);
  border: 1px solid var(--hairline);
  padding: 1.75rem 1.6rem;
  max-width: 36rem;
}
.thanks-state.is-visible { display: block; }
form.is-hidden { display: none; }

/* —— Empty —— */
.empty-state {
  border: 1px dashed var(--hairline);
  background: rgba(255, 252, 246, 0.55);
  padding: 3rem 1.75rem;
  text-align: center;
  max-width: 36rem;
  margin: 0 auto;
}

/* —— Footer —— */
.site-footer {
  border-top: 1px solid var(--hairline);
  padding: 2.75rem 0 2rem;
  background: #EFE9DA;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2rem;
}
.site-footer .wordmark { color: var(--forest); display: inline-block; margin-bottom: 0.6rem; }
.site-footer p { color: var(--muted); margin: 0 0 0.8rem; font-size: 0.95rem; }
.site-footer h4 {
  font-family: var(--sans);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 0 0.7rem;
  font-weight: 700;
}
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 0.35rem; }
.site-footer a { text-decoration: none; color: var(--ink); font-weight: 500; }
.site-footer a:hover { color: var(--forest); text-decoration: underline; }
.footer-mark {
  margin-top: 2rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--hairline);
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 0.82rem;
  color: var(--muted);
}
.footer-mark img {
  width: 52px;
  height: 52px;
  object-fit: contain;
  border: 1px solid var(--hairline);
  background: var(--card);
}

/* —— Campaign —— */
.campaign-hero {
  padding: 4rem 0 2.5rem;
  border-bottom: 1px solid var(--hairline);
}

/* —— Diagrams —— */
.diagram { width: 100%; height: auto; color: var(--forest); }
.diagram .ghost { stroke: var(--hairline); fill: none; }
.diagram .ink { stroke: var(--forest); fill: none; }
.diagram .fill { fill: var(--forest); }
.diagram .accent { fill: var(--accent); stroke: var(--accent); }

/* —— Utilities —— */
.mb0 { margin-bottom: 0; }
.mt2 { margin-top: 1.5rem; }
.center { text-align: center; }
.center .lede { margin-left: auto; margin-right: auto; }
.tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tag {
  font-size: 0.75rem;
  border: 1px solid var(--hairline);
  padding: 0.15rem 0.45rem;
  color: var(--muted);
}

@media (max-width: 980px) {
  .hero-grid, .calc, .split, .split-wide, .footer-grid { grid-template-columns: 1fr; }
  .card-grid, .problem-grid, .steps { grid-template-columns: 1fr 1fr; }
  .problem { border-right: 0; border-bottom: 1px solid var(--hairline); }
  .calc-out { position: static; }
}

@media (max-width: 720px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    display: none;
    position: absolute;
    left: 0; right: 0;
    top: 100%;
    background: var(--cream);
    border-bottom: 1px solid var(--hairline);
    padding: 0.75rem var(--gutter) 1.1rem;
    flex-direction: column;
    align-items: stretch;
    margin: 0;
  }
  .site-header.is-open .nav { display: flex; }
  .nav > ul { flex-direction: column; align-items: stretch; gap: 0; }
  .nav > ul > li { border-bottom: 1px solid var(--hairline); }
  .nav a, .nav .nav-btn { display: block; width: 100%; text-align: left; padding: 0.7rem 0; }
  .header-cta { margin: 0.75rem 0 0; }
  .nav-sub {
    position: static;
    display: none;
    border: 0;
    box-shadow: none;
    background: transparent;
    padding: 0 0 0.5rem 0.6rem;
  }
  .has-sub.is-open .nav-sub { display: block; }
  .card-grid, .problem-grid, .steps, .mix-row { grid-template-columns: 1fr; }
  .hero { padding: 2.75rem 0 2.4rem; }
  .section { padding: 3rem 0; }
  .letter { padding: 1.4rem 1.2rem 1.2rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}

@media (min-width: 721px) { .card-grid.two-up { grid-template-columns: 1fr 1fr; } }