/* US APP TEAM — Free Tools site chrome.
   Layout, nav, footer, hub cards, tool page shell, CTA block. */

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--body);
  color: var(--ink);
  background:
    radial-gradient(1100px 600px at 85% -10%, rgba(63, 192, 224, .12), transparent 60%),
    radial-gradient(900px 560px at -5% 110%, rgba(184, 48, 111, .07), transparent 55%),
    var(--bg);
  background-attachment: fixed;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

a { color: var(--azure); }

:focus-visible {
  outline: 3px solid rgba(35, 128, 184, .55);
  outline-offset: 2px;
  border-radius: 8px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

.wrap { width: min(100% - 40px, var(--maxw)); margin-inline: auto; }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--card); color: var(--ink);
  padding: 12px 18px; border-radius: var(--r-sm); z-index: 100;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 30;
  backdrop-filter: blur(14px);
  background: rgba(246, 247, 249, .88);
  border-bottom: 1px solid var(--line);
}
.nav-in {
  display: flex; align-items: center; gap: 24px;
  min-height: 68px;
}
.nav-brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--disp); font-weight: 700; font-size: 15px;
  letter-spacing: .02em; color: var(--ink); text-decoration: none;
  white-space: nowrap;
}
.nav-brand img { width: 30px; height: 30px; display: block; }
.nav-menu {
  display: flex; align-items: center; gap: 22px;
  margin-left: auto; flex-wrap: wrap;
}
.nav-menu a {
  font-size: 14px; font-weight: 500; color: var(--slate);
  text-decoration: none; transition: color .2s var(--ease);
}
.nav-menu a:hover { color: var(--azure); }
.nav-cta {
  font-family: var(--disp); font-weight: 600; font-size: 14px;
  padding: 10px 18px; border-radius: 999px;
  background: var(--grad); color: #fff !important;
  text-decoration: none; white-space: nowrap;
  box-shadow: var(--shadow);
}
@media (max-width: 720px) {
  .nav-menu { gap: 14px; }
  .nav-menu a.hide-sm { display: none; }
}

/* ---------- generic sections ---------- */
.sec { padding: 64px 0; }
.sec-sm { padding: 40px 0; }

h1, h2, h3 { font-family: var(--disp); line-height: 1.2; color: var(--ink); }
h1 { font-size: clamp(30px, 5vw, 46px); font-weight: 700; letter-spacing: -.02em; margin: 0 0 14px; }
h2 { font-size: clamp(22px, 3.4vw, 30px); font-weight: 700; margin: 0 0 14px; }
h3 { font-size: 18px; font-weight: 600; margin: 0 0 8px; }

.lede { font-size: clamp(16px, 2.2vw, 19px); color: var(--slate); max-width: 62ch; margin: 0 0 20px; }
.eyebrow {
  font-family: var(--mono); font-size: 12px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--azure); margin: 0 0 12px;
}

/* ---------- hub ---------- */
.hub-hero { padding: 56px 0 28px; }
.search-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin: 22px 0 10px; }
.search-box {
  flex: 1 1 320px; position: relative;
}
.search-box input {
  width: 100%; font-family: var(--body); font-size: 16px;
  padding: 15px 16px 15px 46px;
  border: 1px solid var(--line-2); border-radius: 999px;
  background: var(--card); color: var(--ink);
  box-shadow: var(--shadow); transition: border-color .2s var(--ease);
}
.search-box input:focus { border-color: var(--azure); }
.search-box svg {
  position: absolute; left: 17px; top: 50%; transform: translateY(-50%);
  width: 18px; height: 18px; stroke: var(--ink-40); fill: none; stroke-width: 2;
  pointer-events: none;
}
.chips { display: flex; gap: 8px; flex-wrap: wrap; margin: 8px 0 4px; }
.chip {
  font-family: var(--body); font-size: 13px; font-weight: 500;
  padding: 8px 15px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--line-2); background: var(--card); color: var(--slate);
  transition: all .2s var(--ease);
}
.chip:hover { border-color: var(--azure); color: var(--azure); }
.chip[aria-pressed="true"] { background: var(--ink); color: #fff; border-color: var(--ink); }
.result-count { font-size: 14px; color: var(--ink-60); margin: 14px 0 0; }

.grid {
  display: grid; gap: 20px; margin: 26px 0 0;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
}
.card {
  display: flex; flex-direction: column;
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--r); overflow: hidden;
  text-decoration: none; color: inherit;
  box-shadow: var(--shadow);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); border-color: rgba(35, 128, 184, .35); }
/* display:flex above outranks the UA [hidden] rule — search filtering needs this. */
.card[hidden] { display: none; }
.card-thumb {
  aspect-ratio: 16 / 9; background: var(--grad);
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.card-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.card-thumb .glyph { font-family: var(--disp); font-weight: 700; font-size: 40px; color: rgba(255,255,255,.9); }
.card-body { padding: 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card-body h3 { margin: 0; }
.card-body p { margin: 0; font-size: 14.5px; color: var(--slate); flex: 1; }
.card-meta { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-top: 4px; }
.badge {
  font-family: var(--mono); font-size: 11px; letter-spacing: .06em; text-transform: uppercase;
  padding: 5px 10px; border-radius: 999px;
  background: var(--blue-soft); color: var(--azure);
}
.badge.free { background: rgba(31, 169, 113, .12); color: var(--green); }
.empty { padding: 40px 0; color: var(--ink-60); font-size: 15px; }

/* ---------- tool page ---------- */
.tool-hero { padding: 48px 0 24px; }
.breadcrumb { font-size: 13px; color: var(--ink-60); margin: 0 0 16px; }
.breadcrumb a { color: var(--ink-60); text-decoration: none; }
.breadcrumb a:hover { color: var(--azure); }

.tool-shell {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--r); box-shadow: var(--shadow-lift);
  padding: clamp(20px, 4vw, 34px); margin: 8px 0 44px;
}

.prose { max-width: 70ch; }
.prose p { color: var(--slate); }
.prose ol, .prose ul { color: var(--slate); padding-left: 22px; }
.prose li { margin-bottom: 8px; }

/* video */
.video-block { margin: 44px 0; }
.video-frame {
  border-radius: var(--r); overflow: hidden;
  border: 1px solid var(--line); box-shadow: var(--shadow-lift);
  background: #000; line-height: 0;
}
.video-frame video { width: 100%; height: auto; display: block; }

/* faq */
.faq-item {
  border: 1px solid var(--line); border-radius: var(--r-sm);
  background: var(--card); margin-bottom: 10px; overflow: hidden;
}
.faq-item summary {
  cursor: pointer; padding: 16px 18px; font-weight: 600;
  font-family: var(--disp); font-size: 16px; list-style: none;
  display: flex; justify-content: space-between; gap: 14px; align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; color: var(--azure); font-size: 22px; font-weight: 400; }
.faq-item[open] summary::after { content: '\2013'; }
.faq-item .faq-a { padding: 0 18px 16px; color: var(--slate); font-size: 15px; }

/* CTA block */
.cta-block {
  margin: 52px 0 20px; padding: clamp(26px, 5vw, 44px);
  border-radius: var(--r); border: 1px solid rgba(35, 128, 184, .22);
  background:
    radial-gradient(600px 300px at 90% 0%, rgba(168, 50, 104, .07), transparent 60%),
    var(--card);
  box-shadow: var(--shadow-lift);
  text-align: center;
}
.cta-block h2 { margin: 0 0 10px; }
.cta-block p { color: var(--slate); max-width: 56ch; margin: 0 auto 24px; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--disp); font-weight: 700; font-size: 17px;
  padding: 17px 34px; border-radius: 999px;
  background: var(--grad); color: #fff !important; text-decoration: none;
  box-shadow: 0 10px 26px -8px rgba(35, 128, 184, .5);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease);
  border: none; cursor: pointer;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 32px -8px rgba(35, 128, 184, .6); }
.btn-primary:active { transform: scale(.98); }
.cta-sub { display: block; margin-top: 16px; font-size: 14.5px; color: var(--ink-60); }
.cta-sub a { color: var(--azure); }

/* ---------- footer ---------- */
.foot {
  border-top: 1px solid var(--line); margin-top: 60px;
  padding: 44px 0 34px; background: rgba(255, 255, 255, .5);
}
.foot-in { display: flex; gap: 32px; flex-wrap: wrap; justify-content: space-between; }
.foot-brand { max-width: 300px; }
.foot-brand p { font-size: 14px; color: var(--ink-60); margin: 10px 0 0; }
.foot-cols { display: flex; gap: 48px; flex-wrap: wrap; }
.foot-col h4 {
  font-family: var(--mono); font-size: 11px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--ink-40); margin: 0 0 12px; font-weight: 400;
}
.foot-col a {
  display: block; font-size: 14px; color: var(--slate);
  text-decoration: none; margin-bottom: 9px;
}
.foot-col a:hover { color: var(--azure); }
.foot-legal {
  margin-top: 34px; padding-top: 20px; border-top: 1px solid var(--line);
  font-size: 13px; color: var(--ink-40);
  display: flex; gap: 16px; flex-wrap: wrap; justify-content: space-between;
}
.foot-legal a { color: var(--ink-40); text-decoration: none; }