/* ============================================================
   YDM by QANEN — Website design system
   Palette: #D7F0C8 #A9D99F #7EC27B #5DB66A #3FA55B #2EB84A #1F6B3A
   ============================================================ */

:root {
  --g-50:  #f4faf1;
  --g-100: #e8f5e2;
  --g-200: #D7F0C8;
  --g-300: #A9D99F;
  --g-400: #7EC27B;
  --g-500: #5DB66A;
  --g-600: #3FA55B;
  --g-700: #2EB84A;   /* bright accent */
  --g-800: #1F6B3A;   /* brand dark */
  --ink:   #16281c;
  --ink-2: #40564a;
  --ink-3: #6b8073;
  --paper: #fbfdfb;
  --card:  #ffffff;
  --line:  #dcead9;
  --line-2:#c8dec4;
  --dark:  #0f2417;
  --dark-2:#16301f;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 1px 2px rgba(22,40,28,.05), 0 4px 16px rgba(22,40,28,.06);
  --shadow-lg: 0 8px 32px rgba(22,40,28,.12);
  --font: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "Cascadia Code", "SF Mono", Consolas, monospace;
  --maxw: 1120px;
  --header-h: 66px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16.5px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 { line-height: 1.22; margin: 0 0 .5em; font-weight: 700; letter-spacing: -.015em; }
h1 { font-size: clamp(2.1rem, 4.6vw, 3.3rem); }
h2 { font-size: clamp(1.55rem, 3vw, 2.15rem); }
h3 { font-size: 1.18rem; }
p { margin: 0 0 1em; }
a { color: var(--g-800); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--g-600); }
img, svg { max-width: 100%; height: auto; }
ul { padding-left: 1.2em; }
li { margin-bottom: .35em; }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--g-800); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 84px 0; }
.section-tight { padding: 56px 0; }
.section-alt { background: var(--g-50); }
.section-dark {
  background: linear-gradient(160deg, var(--dark) 0%, #143420 60%, var(--dark-2) 100%);
  color: #e9f4ea;
}
.section-dark h2, .section-dark h3 { color: #fff; }
.section-dark a { color: var(--g-300); }

.eyebrow {
  display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--g-600); margin-bottom: 14px;
}
.section-dark .eyebrow { color: var(--g-400); }
.lead { font-size: 1.16rem; color: var(--ink-2); max-width: 44em; }
.section-dark .lead { color: #c6dccc; }
.muted { color: var(--ink-3); }
.small { font-size: .875rem; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(251,253,251,.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; gap: 20px;
  height: var(--header-h); max-width: var(--maxw); margin: 0 auto; padding: 0 24px;
}
.brand { display: flex; align-items: center; gap: 11px; flex: 0 0 auto; text-decoration: none; color: var(--ink); font-weight: 700; font-size: 1rem; line-height: 1.15; }
.brand span { white-space: nowrap; }
.brand img { width: 34px; height: 34px; border-radius: 8px; }
.brand small { display: block; font-size: .68rem; font-weight: 600; color: var(--ink-3); letter-spacing: .04em; }
.main-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.main-nav a:not(.btn) {
  text-decoration: none; color: var(--ink-2); font-size: .9rem; font-weight: 600;
  padding: 8px 10px; border-radius: 8px; white-space: nowrap;
}
.main-nav a:not(.btn):hover { color: var(--ink); background: var(--g-100); }
.main-nav a[aria-current="page"]:not(.btn) { color: var(--g-800); background: var(--g-200); }
.header-cta { margin-left: 8px; }

.nav-toggle {
  display: none; margin-left: auto; background: none; border: 1px solid var(--line-2);
  border-radius: 8px; padding: 8px 10px; cursor: pointer; color: var(--ink);
}
.nav-toggle svg { display: block; }

@media (max-width: 1180px) {
  .nav-toggle { display: block; }
  .main-nav {
    display: none; position: absolute; top: var(--header-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 2px;
    background: var(--paper); border-bottom: 1px solid var(--line);
    padding: 12px 16px 16px; box-shadow: var(--shadow-lg);
  }
  .main-nav.open { display: flex; }
  .main-nav a:not(.btn) { padding: 12px 14px; font-size: 1rem; }
  .header-cta { margin: 8px 0 0; text-align: center; justify-content: center; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font: 600 .95rem var(--font); padding: 12px 22px; border-radius: 10px;
  text-decoration: none; cursor: pointer; border: 1px solid transparent;
  transition: background .15s ease, transform .15s ease, box-shadow .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--g-800); color: #fff;
  box-shadow: 0 2px 8px rgba(31,107,58,.28);
}
.btn-primary:hover { background: var(--g-600); color: #fff; }
.btn-bright {
  background: var(--g-700); color: #fff;
  box-shadow: 0 2px 10px rgba(46,184,74,.35);
}
.btn-bright:hover { background: #27a343; color: #fff; }
.btn-outline { background: transparent; color: var(--g-800); border-color: var(--g-600); }
.btn-outline:hover { background: var(--g-100); color: var(--g-800); }
.btn-ghost { background: transparent; color: #d9ecd9; border-color: #3a5c44; }
.btn-ghost:hover { background: rgba(255,255,255,.07); color: #fff; }
.btn-lg { padding: 15px 30px; font-size: 1.02rem; border-radius: 12px; }
.btn-sm { padding: 8px 15px; font-size: .86rem; }
.btn svg { flex: none; }

/* ---------- Hero ---------- */
.hero { padding: 76px 0 88px; position: relative; overflow: clip; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero h1 .accent { color: var(--g-800); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 28px 0 22px; }
.hero-note { display: flex; flex-wrap: wrap; gap: 8px 22px; color: var(--ink-3); font-size: .9rem; }
.hero-note span { display: inline-flex; align-items: center; gap: 7px; }
.hero-note svg { color: var(--g-600); flex: none; }

.hero-art { position: relative; }
.hero-art .frame {
  border-radius: 18px; border: 1px solid var(--line);
  box-shadow: var(--shadow-lg); background: var(--card); overflow: hidden;
}
.hero-caption { text-align: center; margin-top: 12px; font-size: .82rem; color: var(--ink-3); }

@media (max-width: 900px) {
  .hero { padding: 52px 0 64px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
}

/* ---------- Cards / grids ---------- */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 980px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; box-shadow: var(--shadow);
}
.card h3 { display: flex; align-items: center; gap: 10px; }
.card p:last-child { margin-bottom: 0; }
.card-icon {
  width: 42px; height: 42px; border-radius: 11px; flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--g-100); color: var(--g-800);
  margin-bottom: 14px;
}
.card-icon svg { width: 22px; height: 22px; }

.card-dark {
  background: rgba(255,255,255,.045); border-color: #2c4d37; box-shadow: none;
}
.card-dark .card-icon { background: rgba(46,184,74,.14); color: var(--g-400); }
.card-dark p { color: #c2d6c6; }

/* ---------- Steps ---------- */
.steps { counter-reset: step; display: grid; gap: 20px; }
.step { display: grid; grid-template-columns: 46px 1fr; gap: 18px; align-items: start; }
.step::before {
  counter-increment: step; content: counter(step);
  width: 42px; height: 42px; border-radius: 50%;
  background: var(--g-800); color: #fff; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.step h3 { margin-bottom: .2em; }
.step p { color: var(--ink-2); margin: 0; }

/* ---------- Download cards ---------- */
.dl-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
@media (max-width: 720px) { .dl-grid { grid-template-columns: 1fr; } }
.dl-card {
  position: relative; border: 1px solid var(--line); border-radius: 16px;
  padding: 30px; background: var(--card); box-shadow: var(--shadow);
  display: flex; flex-direction: column;
}
.dl-card.featured { border: 2px solid var(--g-600); }
.dl-badge {
  position: absolute; top: -13px; left: 26px; background: var(--g-700); color: #fff;
  font-size: .74rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  padding: 4px 12px; border-radius: 999px;
}
.dl-card h3 { font-size: 1.25rem; }
.dl-meta { list-style: none; padding: 0; margin: 14px 0 22px; color: var(--ink-2); font-size: .93rem; }
.dl-meta li { display: flex; justify-content: space-between; gap: 16px; padding: 7px 0; border-bottom: 1px dashed var(--line); margin: 0; }
.dl-meta li:last-child { border-bottom: 0; }
.dl-meta b { font-weight: 600; color: var(--ink); }

.spec-table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.spec-table th, .spec-table td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.spec-table th { color: var(--ink-2); font-weight: 600; width: 38%; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }

/* ---------- Tabs (docs) ---------- */
.tabs { border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); overflow: hidden; box-shadow: var(--shadow); }
.tab-list { display: flex; flex-wrap: wrap; gap: 2px; background: var(--g-50); border-bottom: 1px solid var(--line); padding: 8px 8px 0; }
.tab-btn {
  border: 0; background: transparent; font: 600 .92rem var(--font); color: var(--ink-2);
  padding: 11px 18px; border-radius: 9px 9px 0 0; cursor: pointer;
  border: 1px solid transparent; border-bottom: 0; margin-bottom: -1px;
}
.tab-btn:hover { color: var(--ink); }
.tab-btn[aria-selected="true"] { background: var(--card); color: var(--g-800); border-color: var(--line); }
.tab-panel { padding: 30px; }
.js .tab-panel { display: none; }
.js .tab-panel.active { display: block; }
.tab-panel h2 { margin-top: 0; }

/* ---------- FAQ ---------- */
.faq-search { position: relative; max-width: 520px; margin-bottom: 30px; }
.faq-search input {
  width: 100%; font: 400 .98rem var(--font); padding: 13px 16px 13px 44px;
  border: 1px solid var(--line-2); border-radius: 11px; background: var(--card); color: var(--ink);
}
.faq-search input:focus { outline: 2px solid var(--g-500); outline-offset: 1px; border-color: var(--g-500); }
.faq-search svg { position: absolute; left: 15px; top: 50%; transform: translateY(-50%); color: var(--ink-3); }
.faq-count { font-size: .88rem; color: var(--ink-3); margin: -16px 0 22px; }

details.faq {
  border: 1px solid var(--line); border-radius: 12px; background: var(--card);
  margin-bottom: 12px; overflow: hidden; box-shadow: var(--shadow);
}
details.faq summary {
  list-style: none; cursor: pointer; padding: 18px 22px; font-weight: 600; font-size: 1.02rem;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after {
  content: ""; flex: none; width: 10px; height: 10px;
  border-right: 2px solid var(--g-700); border-bottom: 2px solid var(--g-700);
  transform: rotate(45deg); transition: transform .18s ease; margin-top: -4px;
}
details.faq[open] summary::after { transform: rotate(225deg); margin-top: 4px; }
details.faq summary:hover { color: var(--g-800); }
.faq-body { padding: 0 22px 20px; color: var(--ink-2); }
.faq-body p:last-child { margin-bottom: 0; }
.faq-hidden { display: none !important; }

/* ---------- Callout ---------- */
.callout {
  border: 1px solid var(--line-2); border-left: 4px solid var(--g-600);
  background: var(--g-50); border-radius: 10px; padding: 18px 22px; margin: 26px 0;
}
.callout p:last-child { margin-bottom: 0; }
.callout h2, .callout h3 { margin-top: 0; }

/* ---------- CTA band ---------- */
.cta-band { text-align: center; }
.cta-band .hero-actions { justify-content: center; }

/* ---------- Footer ---------- */
.site-footer { background: var(--dark); color: #a9c4ae; padding: 56px 0 30px; font-size: .93rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px; margin-bottom: 40px; }
@media (max-width: 820px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; font-size: 1.05rem; margin-bottom: 12px; }
.footer-brand img { width: 30px; height: 30px; border-radius: 7px; }
.site-footer h3 { font-size: .82rem; text-transform: uppercase; letter-spacing: .1em; color: #6f9077; margin-bottom: 14px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 9px; }
.site-footer a { color: #b9d4be; text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.footer-legal {
  border-top: 1px solid #24402c; padding-top: 22px; display: flex; flex-wrap: wrap; gap: 10px 24px;
  justify-content: space-between; font-size: .84rem; color: #7d9a85;
}

/* ---------- Prose (docs/legal pages) ---------- */
.prose { max-width: 780px; }
.prose h2 { margin-top: 1.8em; }
.prose h3 { margin-top: 1.4em; }
.prose table { width: 100%; border-collapse: collapse; margin: 1.2em 0; font-size: .94rem; }
.prose th, .prose td { border: 1px solid var(--line); padding: 9px 12px; text-align: left; }
.prose th { background: var(--g-50); }
.prose code { font-family: var(--mono); font-size: .88em; background: var(--g-100); padding: 2px 6px; border-radius: 5px; }
kbd {
  font: 600 .82rem var(--mono); background: var(--g-50); border: 1px solid var(--line-2);
  border-bottom-width: 2px; border-radius: 6px; padding: 2px 7px;
}
.update-note { font-size: .88rem; color: var(--ink-3); }

/* copy button */
.codeblock { position: relative; }
.copy-btn {
  position: absolute; top: 10px; right: 10px; border: 1px solid var(--line-2);
  background: var(--card); border-radius: 7px; padding: 5px 10px; font: 600 .78rem var(--font);
  color: var(--ink-2); cursor: pointer;
}
.copy-btn:hover { background: var(--g-100); }

/* breadcrumbs */
.crumbs { font-size: .85rem; color: var(--ink-3); margin: 22px 0 0; }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; padding: 0; margin: 0; }
.crumbs li + li::before { content: "/"; margin-right: 6px; color: var(--line-2); }
.crumbs a { color: var(--ink-3); text-decoration: none; }
.crumbs a:hover { color: var(--g-800); }

/* misc */
.center { text-align: center; }
.mt-2 { margin-top: 12px; } .mt-4 { margin-top: 24px; } .mt-6 { margin-top: 40px; }
.pill {
  display: inline-flex; align-items: center; gap: 7px; font-size: .82rem; font-weight: 600;
  background: var(--g-100); color: var(--g-800); border-radius: 999px; padding: 5px 13px; margin: 0 6px 8px 0;
}
.check-list { list-style: none; padding: 0; }
.check-list li { display: flex; gap: 11px; margin-bottom: 12px; }
.check-list svg { flex: none; color: var(--g-600); margin-top: 4px; }