/* Green Mountain Apps — one stylesheet, no build step. */

:root {
  --cream:   #FBFAF6;
  --surface: #FFFFFF;
  --ink:     #12281D;
  --ink-2:   #4C6659;
  --line:    rgba(26, 92, 59, .14);

  --g-100: #EDF8F1;
  --g-200: #CFEBDB;
  --g-300: #A3D8BB;
  --g-500: #3C9767;
  --g-600: #2A7E53;
  --g-700: #1A5C3B;
  --g-900: #0E3B26;
  --sun:   #F2B544;

  /* Always-dark slab, for panels that stay dark in both themes. */
  --slab:     #0E3B26;
  --slab-ink: #FFFFFF;

  --shadow:    0 1px 2px rgba(14, 59, 38, .06), 0 8px 24px -12px rgba(14, 59, 38, .18);
  --shadow-lg: 0 2px 4px rgba(14, 59, 38, .06), 0 20px 40px -18px rgba(14, 59, 38, .28);

  --radius: 16px;
  --wrap:   1080px;
  --serif:  Iowan Old Style, Palatino, Georgia, "Times New Roman", serif;
  --sans:   system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono:   ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --cream:   #0D1A13;
    --surface: #13251B;
    --ink:     #E8F3EC;
    --ink-2:   #9DBCAC;
    --line:    rgba(163, 216, 187, .18);

    --g-100: #17301F;
    --g-200: #1D4030;
    --g-300: #2A7E53;
    --g-500: #5DBE8B;
    --g-600: #7CC29B;
    --g-700: #A3D8BB;
    --g-900: #CFEBDB;

    --slab: #10321F;

    --shadow:    0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px -12px rgba(0, 0, 0, .6);
    --shadow-lg: 0 2px 4px rgba(0, 0, 0, .3), 0 20px 40px -18px rgba(0, 0, 0, .7);
  }
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font: 17px/1.65 var(--sans);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main { flex: 1; }

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -.015em;
  margin: 0 0 .5em;
  text-wrap: balance;
}

h1 { font-size: clamp(2.1rem, 1.3rem + 3.4vw, 3.4rem); }
h2 { font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2rem); }
h3 { font-size: 1.15rem; }

p { margin: 0 0 1.1em; text-wrap: pretty; }
p:last-child { margin-bottom: 0; }

a { color: var(--g-600); text-decoration-color: var(--g-300); text-underline-offset: 3px; }
a:hover { color: var(--g-700); }

img, svg { max-width: 100%; }
code { font: .9em var(--mono); background: var(--g-100); padding: .15em .4em; border-radius: 5px; }

:focus-visible { outline: 2.5px solid var(--g-500); outline-offset: 3px; border-radius: 4px; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: 20px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip {
  position: absolute; left: 12px; top: -60px; z-index: 20;
  background: var(--surface); padding: 10px 16px; border-radius: 10px;
  box-shadow: var(--shadow); transition: top .15s;
}
.skip:focus { top: 12px; }

/* ---------- header ---------- */

.site-head {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--cream) 85%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s, box-shadow .2s;
}
.site-head.is-stuck { border-bottom-color: var(--line); box-shadow: 0 4px 20px -16px rgba(14, 59, 38, .5); }

.head-inner { display: flex; align-items: center; gap: 16px; min-height: 68px; }

.brand {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--ink); text-decoration: none; font-weight: 600;
  margin-right: auto;
}
.brand-mark { border-radius: 10px; transition: transform .3s cubic-bezier(.34, 1.56, .64, 1); }
.brand:hover .brand-mark { transform: translateY(-2px) rotate(-4deg); }
.brand-name { font-family: var(--serif); font-size: 1.12rem; letter-spacing: -.01em; }

.nav { display: flex; align-items: center; gap: 6px; }
.nav a {
  color: var(--ink-2); text-decoration: none; font-size: .95rem; font-weight: 500;
  padding: 8px 12px; border-radius: 999px; transition: background .15s, color .15s;
}
.nav a:hover { background: var(--g-100); color: var(--g-700); }
.nav a[aria-current="page"] { color: var(--g-700); background: var(--g-100); }

.nav .nav-cta {
  background: var(--g-700); color: #fff; padding-inline: 16px;
  box-shadow: var(--shadow);
}
.nav .nav-cta:hover { background: var(--g-900); color: #fff; }
@media (prefers-color-scheme: dark) {
  .nav .nav-cta { color: var(--cream); }
  .nav .nav-cta:hover { color: var(--cream); }
}

.nav-toggle {
  display: none; order: 2; width: 42px; height: 42px; padding: 0;
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px; cursor: pointer;
}
.nav-toggle-bars, .nav-toggle-bars::before, .nav-toggle-bars::after {
  display: block; width: 18px; height: 2px; border-radius: 2px; background: var(--ink);
  margin-inline: auto; content: ""; transition: transform .2s, opacity .2s;
}
.nav-toggle-bars::before { transform: translateY(-6px); }
.nav-toggle-bars::after  { transform: translateY(4px); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before { transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after  { transform: translateY(-2px) rotate(-45deg); }

@media (max-width: 680px) {
  .nav-toggle { display: block; }
  .nav {
    position: absolute; inset: 68px 12px auto; flex-direction: column; align-items: stretch;
    gap: 2px; padding: 10px; background: var(--surface); border: 1px solid var(--line);
    border-radius: var(--radius); box-shadow: var(--shadow-lg);
  }
  .nav[hidden] { display: none; }
  .nav a { padding: 12px 14px; border-radius: 10px; }
  .nav .nav-cta { text-align: center; margin-top: 4px; }
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: 999px; border: 1px solid transparent;
  font: 500 .98rem/1 var(--sans); text-decoration: none; cursor: pointer;
  transition: transform .15s, box-shadow .15s, background .15s;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--g-700); color: #fff; box-shadow: var(--shadow); }
.btn-primary:hover { background: var(--g-900); color: #fff; box-shadow: var(--shadow-lg); }

.btn-ghost { background: var(--surface); color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { color: var(--g-700); border-color: var(--g-300); }

@media (prefers-color-scheme: dark) {
  .btn-primary, .btn-primary:hover { color: var(--cream); }
  /* The CTA slab stays dark in both themes, so its button keeps its own colours. */
  .cta .btn-primary, .cta .btn-primary:hover { color: var(--slab); }
}

/* ---------- hero ---------- */

.hero { position: relative; overflow: hidden; padding: clamp(48px, 7vw, 96px) 0 0; }

.hero-sun {
  position: absolute; top: -60px; right: -40px; width: 300px; height: 300px; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, color-mix(in srgb, var(--sun) 45%, transparent), transparent 68%);
  pointer-events: none;
}
@media (prefers-color-scheme: dark) { .hero-sun { opacity: .45; } }

.hero-inner { position: relative; max-width: 720px; }
.hero p.lede { font-size: clamp(1.05rem, .98rem + .4vw, 1.25rem); color: var(--ink-2); max-width: 56ch; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .8rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
  color: var(--g-600); background: var(--g-100); border-radius: 999px;
  padding: 6px 14px; margin-bottom: 20px;
}
.eyebrow::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--g-500);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--g-500) 60%, transparent);
  animation: pulse 2.6s ease-out infinite;
}
@keyframes pulse {
  70%  { box-shadow: 0 0 0 9px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}
@media (prefers-reduced-motion: reduce) { .eyebrow::before { animation: none; } }

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.hero-ridge { display: block; width: 100%; height: clamp(90px, 13vw, 150px); margin-top: clamp(32px, 5vw, 56px); }
.hero-ridge .ridge-far  { fill: var(--g-300); }
.hero-ridge .ridge-mid  { fill: var(--g-500); }
.hero-ridge .ridge-near { fill: var(--g-700); }

/* ---------- sections ---------- */

.section { padding: clamp(48px, 6vw, 80px) 0; }
.section + .section:not(.section-tint) { padding-top: 0; }
.section-tint { background: var(--g-100); }

.section-head { max-width: 60ch; margin-bottom: 32px; }
.section-head p { color: var(--ink-2); margin-bottom: 0; }

/* ---------- app cards ---------- */

.cards { display: grid; gap: 18px; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); }

.card {
  position: relative; display: flex; flex-direction: column;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow);
  transition: transform .18s, box-shadow .18s, border-color .18s;
  overflow: hidden;
}
.card::before {
  content: ""; position: absolute; inset: 0 0 auto; height: 4px;
  background: linear-gradient(90deg, var(--g-300), var(--g-500), var(--g-700));
  opacity: 0; transition: opacity .18s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--g-300); }
.card:hover::before { opacity: 1; }

.card h3 { margin-bottom: .35em; }
.card h3 a { color: inherit; text-decoration: none; }
.card h3 a::after { content: ""; position: absolute; inset: 0; }
.card p { color: var(--ink-2); font-size: .96rem; }

.card-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 18px; }

.pill {
  font-size: .76rem; font-weight: 600; letter-spacing: .02em;
  padding: 4px 10px; border-radius: 999px;
  background: var(--g-100); color: var(--g-700);
}
.pill-live   { background: color-mix(in srgb, var(--g-500) 18%, transparent); }
.pill-free   { background: color-mix(in srgb, var(--sun) 24%, transparent); color: var(--ink); }
.pill-muted  { background: transparent; border: 1px solid var(--line); color: var(--ink-2); font-weight: 500; }

.card-link {
  display: inline-flex; align-items: center; gap: 5px;
  margin-top: 14px; font-size: .92rem; font-weight: 500; text-decoration: none;
}
.card-link span { transition: transform .18s; }
.card:hover .card-link span { transform: translateX(3px); }

/* ---------- value props ---------- */

.props { display: grid; gap: 28px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.prop h3 { display: flex; align-items: center; gap: 10px; }
.prop p { color: var(--ink-2); margin: 0; font-size: .96rem; }
.prop-mark { flex: none; width: 34px; height: 34px; color: var(--g-500); }

/* ---------- prose ---------- */

.prose { max-width: 68ch; }
.prose h2 { margin-top: 1.8em; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin-top: 1.6em; }
.prose ul { padding-left: 1.2em; margin: 0 0 1.1em; }
.prose li { margin-bottom: .45em; }
.prose li::marker { color: var(--g-500); }

.page-head { padding: clamp(40px, 5vw, 64px) 0 0; }
.page-head p { color: var(--ink-2); font-size: 1.08rem; max-width: 60ch; }

.panel {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(22px, 3vw, 32px); box-shadow: var(--shadow);
}

.note {
  border-left: 3px solid var(--g-300); background: var(--g-100);
  padding: 16px 20px; border-radius: 0 12px 12px 0; font-size: .95rem;
}

.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer; padding: 18px 0; font-weight: 600; font-family: var(--serif);
  font-size: 1.05rem; list-style: none; display: flex; justify-content: space-between; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--g-500); font-size: 1.3rem; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details > p { padding-bottom: 18px; color: var(--ink-2); margin: 0; max-width: 68ch; }

/* ---------- contact form ---------- */

.contact-grid { display: grid; gap: 32px; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); align-items: start; }
@media (max-width: 780px) { .contact-grid { grid-template-columns: 1fr; } }

.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 600; font-size: .92rem; margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; font: inherit; font-size: .97rem;
  color: var(--ink); background: var(--cream);
  border: 1px solid var(--line); border-radius: 12px;
  transition: border-color .15s, box-shadow .15s;
}
.field textarea { min-height: 150px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--g-500);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--g-500) 22%, transparent);
}
.field-error input, .field-error select, .field-error textarea { border-color: #C0392B; }
.field-note { font-size: .84rem; color: var(--ink-2); margin: 6px 0 0; }
.field-note-error { color: #C0392B; }

.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.alert { padding: 16px 20px; border-radius: 12px; margin-bottom: 24px; font-size: .96rem; }
.alert-ok   { background: color-mix(in srgb, var(--g-500) 16%, transparent); color: var(--g-900); }
.alert-bad  { background: color-mix(in srgb, #C0392B 12%, transparent); color: #92271A; }
@media (prefers-color-scheme: dark) {
  .alert-ok  { color: var(--ink); }
  .alert-bad { background: rgba(192, 57, 43, .22); color: #FFB3A7; }
}

.panel-title { font-size: 1.1rem; }
.stack-top { margin-top: 32px; }

.contact-aside dt { font-weight: 600; margin-top: 18px; }
.contact-aside dt:first-child { margin-top: 0; }
.contact-aside dd { margin: 2px 0 0; color: var(--ink-2); font-size: .95rem; }

/* ---------- CTA band ---------- */

.cta {
  background: var(--slab); color: var(--slab-ink); border-radius: 24px;
  padding: clamp(32px, 5vw, 56px); text-align: center; position: relative; overflow: hidden;
}
.cta h2 { color: var(--slab-ink); }
.cta p { color: color-mix(in srgb, var(--slab-ink) 78%, transparent); max-width: 52ch; margin-inline: auto; }
.cta .btn-primary { background: var(--slab-ink); color: var(--slab); margin-top: 24px; }
.cta .btn-primary:hover { background: #D8EFE3; color: var(--slab); }
.cta::after {
  content: ""; position: absolute; width: 260px; height: 260px; border-radius: 50%;
  right: -80px; bottom: -140px;
  background: radial-gradient(circle, color-mix(in srgb, var(--sun) 30%, transparent), transparent 70%);
}

/* ---------- footer ---------- */

.site-foot { margin-top: clamp(56px, 8vw, 96px); color: var(--ink-2); font-size: .93rem; }
.foot-ridge { display: block; width: 100%; height: 70px; color: var(--g-100); margin-bottom: -1px; }
.foot-body, .foot-legal-band { background: var(--g-100); }
.foot-legal-band { border-top: 1px solid var(--line); }

.foot-inner {
  display: grid; gap: 32px; grid-template-columns: minmax(0, 1.2fr) minmax(0, 2fr);
  padding-block: 12px 36px;
}
@media (max-width: 760px) { .foot-inner { grid-template-columns: 1fr; } }

.foot-about p { max-width: 40ch; margin-top: 12px; }
.brand-foot { margin-right: 0; }

.foot-nav { display: grid; gap: 24px; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.foot-nav h2 {
  font-family: var(--sans); font-size: .78rem; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: var(--ink); margin-bottom: 12px;
}
.foot-nav a { display: block; padding: 4px 0; color: var(--ink-2); text-decoration: none; }
.foot-nav a:hover { color: var(--g-700); text-decoration: underline; }

.foot-legal {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px;
  padding-block: 18px; font-size: .86rem;
}
.foot-legal p { margin: 0; }

/* ---------- scroll reveal ---------- */

@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
  .reveal.is-in { opacity: 1; transform: none; }
}