/* ============================================================
   freetoolzhub — shared design system
   Glassmorphism · soft gradients · spec palette
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@500;600;700;800&family=Inter:wght@400;500;600;700&display=swap');

:root {
  /* brand palette */
  --blue:    #2563EB;
  --blue-600:#1d4ed8;
  --sky:     #0EA5E9;
  --teal:    #14B8A6;
  --grad: linear-gradient(120deg, #2563EB 0%, #0EA5E9 55%, #14B8A6 100%);
  --grad-soft: linear-gradient(120deg, rgba(37,99,235,.14), rgba(14,165,233,.10) 55%, rgba(20,184,166,.12));

  /* light surfaces */
  --bg:        #F4F7FC;
  --bg-2:      #EAF1FB;
  --ink:       #0F1B2D;
  --ink-soft:  #41526B;
  --ink-mute:  #6C7C95;
  --line:      rgba(15,27,45,.09);
  --card:      rgba(255,255,255,.72);
  --card-solid:#ffffff;
  --glass:     rgba(255,255,255,.55);
  --glass-brd: rgba(255,255,255,.7);
  --shadow-sm: 0 2px 8px rgba(20,40,80,.06);
  --shadow:    0 14px 40px -12px rgba(20,50,110,.20);
  --shadow-lg: 0 30px 70px -20px rgba(20,50,110,.30);
  --ring: 0 0 0 4px rgba(37,99,235,.14);

  --r-sm: 12px;
  --r:    18px;
  --r-lg: 26px;
  --r-xl: 34px;

  --maxw: 1200px;
  --nav-h: 74px;

  --font: 'Inter', system-ui, sans-serif;
  --display: 'Poppins', system-ui, sans-serif;
}

[data-theme="dark"] {
  --bg:        #0A1120;
  --bg-2:      #0E1830;
  --ink:       #EAF1FF;
  --ink-soft:  #AFC0DC;
  --ink-mute:  #7388A8;
  --line:      rgba(255,255,255,.10);
  --card:      rgba(22,33,57,.62);
  --card-solid:#141d33;
  --glass:     rgba(20,30,52,.55);
  --glass-brd: rgba(255,255,255,.10);
  --shadow-sm: 0 2px 10px rgba(0,0,0,.30);
  --shadow:    0 18px 50px -14px rgba(0,0,0,.55);
  --shadow-lg: 0 34px 80px -24px rgba(0,0,0,.65);
  --grad-soft: linear-gradient(120deg, rgba(37,99,235,.20), rgba(14,165,233,.12) 55%, rgba(20,184,166,.16));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background .4s ease, color .3s ease;
}

/* aurora background blobs */
.aurora { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; }
.aurora::before, .aurora::after {
  content: ""; position: absolute; border-radius: 50%;
  filter: blur(90px); opacity: .55;
}
.aurora::before {
  width: 620px; height: 620px; top: -220px; left: -120px;
  background: radial-gradient(circle, #2563EB, transparent 65%);
}
.aurora::after {
  width: 560px; height: 560px; top: 8%; right: -160px;
  background: radial-gradient(circle, #14B8A6, transparent 65%);
}
.aurora i {
  position: absolute; width: 480px; height: 480px; border-radius: 50%;
  filter: blur(100px); opacity: .4; left: 40%; top: 40%;
  background: radial-gradient(circle, #0EA5E9, transparent 65%);
}
[data-theme="dark"] .aurora::before { opacity: .35; }
[data-theme="dark"] .aurora::after { opacity: .3; }
[data-theme="dark"] .aurora i { opacity: .28; }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.sr-only { position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0,0,0,0); }

/* ---------- typography ---------- */
h1,h2,h3 { font-family: var(--display); font-weight: 700; line-height: 1.08; letter-spacing: -.02em; margin: 0; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 12.5px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--blue);
}
[data-theme="dark"] .eyebrow { color: var(--sky); }
.gradient-text {
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font-family: var(--font); font-weight: 700; font-size: 15px;
  padding: 13px 22px; border-radius: 999px; border: 1px solid transparent;
  cursor: pointer; transition: transform .18s ease, box-shadow .25s ease, background .2s; white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 12px 26px -8px rgba(37,99,235,.55); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 34px -8px rgba(37,99,235,.6); }
.btn-ghost { background: var(--glass); border-color: var(--line); color: var(--ink); backdrop-filter: blur(10px); }
.btn-ghost:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.btn-lg { padding: 16px 30px; font-size: 16.5px; }

/* ---------- glass primitives ---------- */
.glass {
  background: var(--card);
  border: 1px solid var(--glass-brd);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow);
}
.chip {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 13px; border-radius: 999px; font-size: 13px; font-weight: 600;
  background: var(--glass); border: 1px solid var(--line); color: var(--ink-soft);
}

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: sticky; top: 0; z-index: 80;
  height: var(--nav-h); display: flex; align-items: center;
  background: var(--glass);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; gap: 22px; }
.brand { display: flex; align-items: center; gap: 11px; font-family: var(--display); font-weight: 800; font-size: 19px; letter-spacing: -.02em; }
.brand .logo {
  width: 38px; height: 38px; border-radius: 11px; background: #fff; overflow: hidden;
  display: block; box-shadow: 0 6px 16px -6px rgba(37,99,235,.5), 0 0 0 1px var(--line);
  flex: none;
}
.brand .logo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.brand b { color: var(--ink); }
.brand .tld { color: var(--blue); }
[data-theme="dark"] .brand .tld { color: var(--sky); }

.nav-links { display: flex; align-items: center; gap: 4px; margin-left: 6px; }
.nav-links a, .nav-links button {
  font-family: var(--font); font-weight: 600; font-size: 14.5px; color: var(--ink-soft);
  padding: 9px 13px; border-radius: 10px; background: none; border: none; cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px; transition: background .18s, color .18s;
}
.nav-links a:hover, .nav-links button:hover { background: var(--glass); color: var(--ink); }
.nav-links a.active { color: var(--blue); }
[data-theme="dark"] .nav-links a.active { color: var(--sky); }
.nav-links .caret { width: 14px; height: 14px; transition: transform .2s; }
.nav-links button[aria-expanded="true"] .caret { transform: rotate(180deg); }

.nav-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }

/* search */
.search {
  display: flex; align-items: center; gap: 9px; height: 42px; padding: 0 14px;
  border-radius: 999px; background: var(--glass); border: 1px solid var(--line);
  color: var(--ink-mute); min-width: 220px; transition: box-shadow .2s, border-color .2s;
}
.search:focus-within { border-color: var(--blue); box-shadow: var(--ring); }
.search svg { width: 17px; height: 17px; flex: none; }
.search input { border: none; background: none; outline: none; font-family: var(--font); font-size: 14.5px; color: var(--ink); width: 100%; }
.search input::placeholder { color: var(--ink-mute); }
.search kbd {
  font-family: var(--font); font-size: 11px; font-weight: 700; color: var(--ink-mute);
  border: 1px solid var(--line); border-radius: 6px; padding: 2px 6px; background: var(--bg);
}

.icon-btn {
  width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center;
  background: var(--glass); border: 1px solid var(--line); color: var(--ink); cursor: pointer;
  transition: transform .18s, box-shadow .2s;
}
.icon-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.icon-btn svg { width: 19px; height: 19px; }
.icon-btn .moon { display: none; }
[data-theme="dark"] .icon-btn .sun { display: none; }
[data-theme="dark"] .icon-btn .moon { display: block; }

.hamburger { display: none; }

/* mega menu */
.mega {
  position: absolute; left: 50%; top: calc(var(--nav-h) - 6px); transform: translateX(-50%) translateY(8px);
  width: min(960px, 94vw); padding: 22px; z-index: 90;
  opacity: 0; visibility: hidden; transition: opacity .2s, transform .2s;
}
.mega.open { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.mega-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.mega-col h4 { font-family: var(--display); font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-mute); margin: 6px 8px 8px; }
.mega-col a {
  display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 12px;
  font-size: 14px; font-weight: 600; color: var(--ink-soft); transition: background .15s, color .15s;
}
.mega-col a:hover { background: var(--grad-soft); color: var(--ink); }
.mega-col a .mi { width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; flex: none; }
.mega-col a .mi svg { width: 16px; height: 16px; }
.mega-foot { margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; font-size: 13.5px; color: var(--ink-mute); }
.mega-foot a { color: var(--blue); font-weight: 700; }

/* ---------- tints for tool icons ---------- */
.t-pdf { background: rgba(239,68,68,.14); color: #ef4444; }
.t-img { background: rgba(14,165,233,.14); color: #0EA5E9; }
.t-vid { background: rgba(139,92,246,.15); color: #8b5cf6; }
.t-aud { background: rgba(245,158,11,.16); color: #f59e0b; }
.t-ai  { background: rgba(20,184,166,.15); color: #14B8A6; }
.t-off { background: rgba(37,99,235,.14); color: #2563EB; }
.t-dev { background: rgba(99,102,241,.15); color: #6366f1; }
.t-util{ background: rgba(236,72,153,.14); color: #ec4899; }

/* ============================================================
   AD SLOTS
   ============================================================ */
.ad {
  position: relative; display: grid; place-items: center; text-align: center;
  border: 1px dashed var(--line); border-radius: var(--r);
  background: repeating-linear-gradient(45deg, transparent, transparent 11px, rgba(37,99,235,.04) 11px, rgba(37,99,235,.04) 22px);
  color: var(--ink-mute); overflow: hidden;
}
.ad::before { content: "Advertisement"; position: absolute; top: 8px; left: 12px; font-size: 10px; letter-spacing: .14em; text-transform: uppercase; font-weight: 700; opacity: .7; }
.ad .ad-body { font-family: 'Manrope', monospace; font-size: 13px; font-weight: 600; }
.ad .ad-body span { display: block; font-size: 11px; opacity: .65; margin-top: 2px; font-weight: 500; }
.ad-leaderboard { height: 96px; }
.ad-banner { height: 120px; }
.ad-square { height: 280px; }
.ad-sticky { position: sticky; top: 92px; }

/* ============================================================
   SECTIONS / cards shared
   ============================================================ */
.section { padding: 78px 0; }
.section-head { max-width: 640px; margin-bottom: 38px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { font-size: clamp(28px, 4vw, 42px); margin: 12px 0 12px; }
.section-head p { color: var(--ink-soft); font-size: 17px; margin: 0; }

.tool-card {
  position: relative; padding: 20px; border-radius: var(--r); cursor: pointer;
  background: var(--card); border: 1px solid var(--glass-brd);
  backdrop-filter: blur(14px); box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .25s ease, border-color .2s;
  display: flex; flex-direction: column; gap: 12px; min-height: 150px;
}
.tool-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: rgba(37,99,235,.3); }
.tool-card .ic { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; }
.tool-card .ic svg { width: 24px; height: 24px; }
.tool-card h3 { font-family: var(--display); font-size: 16.5px; font-weight: 700; }
.tool-card p { font-size: 13.5px; color: var(--ink-mute); margin: 0; line-height: 1.45; }
.tool-card .go { margin-top: auto; font-size: 13px; font-weight: 700; color: var(--blue); display: inline-flex; align-items: center; gap: 6px; opacity: 0; transform: translateX(-6px); transition: .2s; }
.tool-card:hover .go { opacity: 1; transform: translateX(0); }
[data-theme="dark"] .tool-card .go { color: var(--sky); }
.tool-badge { position: absolute; top: 16px; right: 16px; font-size: 10.5px; font-weight: 800; letter-spacing: .04em; padding: 4px 9px; border-radius: 999px; background: var(--grad); color: #fff; }
.tool-badge.hot { background: linear-gradient(120deg,#f59e0b,#ef4444); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { margin-top: 40px; border-top: 1px solid var(--line); background: var(--glass); backdrop-filter: blur(16px); }
.footer-top { display: grid; grid-template-columns: 1.6fr repeat(4, 1fr); gap: 30px; padding: 56px 0 40px; }
.footer .brand { margin-bottom: 14px; }
.footer-about p { color: var(--ink-soft); font-size: 14.5px; max-width: 320px; }
.footer-col h5 { font-family: var(--display); font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--ink); margin: 0 0 14px; }
.footer-col a { display: block; font-size: 14px; color: var(--ink-soft); padding: 5px 0; transition: color .15s, transform .15s; }
.footer-col a:hover { color: var(--blue); transform: translateX(3px); }
[data-theme="dark"] .footer-col a:hover { color: var(--sky); }
.footer-socials { display: flex; gap: 10px; margin-top: 18px; }
.footer-socials a { width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center; background: var(--bg); border: 1px solid var(--line); color: var(--ink-soft); transition: .2s; }
.footer-socials a:hover { color: #fff; background: var(--grad); transform: translateY(-3px); border-color: transparent; }
.footer-socials svg { width: 18px; height: 18px; }
.footer-bottom { border-top: 1px solid var(--line); padding: 22px 0; display: flex; justify-content: space-between; align-items: center; gap: 14px; flex-wrap: wrap; font-size: 13.5px; color: var(--ink-mute); }
.footer-bottom .pills { display: flex; gap: 8px; flex-wrap: wrap; }

/* promise bar */
.promise {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;
}
.promise .chip { background: var(--card); }
.promise .chip svg { width: 15px; height: 15px; color: var(--teal); }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* responsive */
@media (max-width: 980px) {
  .nav-links, .search kbd { display: none; }
  .hamburger { display: grid; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-about { grid-column: 1 / -1; }
}
@media (max-width: 620px) {
  .wrap { padding: 0 16px; }
  .section { padding: 56px 0; }
  .search { min-width: 0; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

/* ---------- search overlay ---------- */
.search-overlay { position: fixed; inset: 0; z-index: 100; display: grid; align-items: start; justify-items: center; padding-top: 12vh; background: rgba(8,15,30,.55); backdrop-filter: blur(6px); opacity: 0; visibility: hidden; transition: .22s; }
.search-overlay.open { opacity: 1; visibility: visible; }
.search-panel { width: min(660px, 92vw); padding: 14px; transform: translateY(-12px); transition: transform .25s; }
.search-overlay.open .search-panel { transform: none; }
.search-big { display: flex; align-items: center; gap: 12px; padding: 6px 8px 14px; border-bottom: 1px solid var(--line); }
.search-big svg { width: 22px; height: 22px; color: var(--ink-mute); flex: none; }
.search-big input { flex: 1; border: none; background: none; outline: none; font-family: var(--display); font-size: 19px; color: var(--ink); }
.search-results { max-height: 50vh; overflow-y: auto; margin-top: 10px; display: flex; flex-direction: column; gap: 4px; }
.sr-item { display: flex; align-items: center; gap: 14px; padding: 11px 12px; border-radius: 14px; transition: background .15s; }
.sr-item:hover { background: var(--grad-soft); }
.sr-item .ic { width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; flex: none; }
.sr-item .ic svg { width: 21px; height: 21px; }
.sr-txt { display: flex; flex-direction: column; flex: 1; }
.sr-txt strong { font-family: var(--display); font-size: 15px; }
.sr-txt span { font-size: 13px; color: var(--ink-mute); }
.sr-cat { font-size: 12px; font-weight: 700; color: var(--ink-mute); padding: 4px 10px; border-radius: 999px; background: var(--bg); }
.sr-empty { padding: 30px; text-align: center; color: var(--ink-mute); }

/* mobile drawer */
.drawer-backdrop { position: fixed; inset: 0; background: rgba(8,15,30,.5); backdrop-filter: blur(4px); z-index: 95; opacity: 0; visibility: hidden; transition: .25s; }
.drawer-backdrop.open { opacity: 1; visibility: visible; }
.drawer {
  position: fixed; top: 0; right: 0; height: 100%; width: min(340px, 88vw); z-index: 96;
  background: var(--bg); border-left: 1px solid var(--line); padding: 22px;
  transform: translateX(100%); transition: transform .3s cubic-bezier(.4,0,.2,1); overflow-y: auto;
}
.drawer.open { transform: none; }
.drawer .d-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.drawer nav a { display: block; padding: 13px 12px; border-radius: 12px; font-weight: 600; color: var(--ink-soft); }
.drawer nav a:hover { background: var(--glass); color: var(--ink); }