:root {
  --bg: #f6f7fb;
  --surface: #ffffff;
  --ink: #121826;
  --muted: #667085;
  --line: #e4e7ec;
  --accent: #5b4cf0;
  --accent-dark: #4536d6;
  --accent-soft: #efedff;
  --cyan-soft: #e7f8fb;
  --ok: #067647;
  --ok-soft: #ecfdf3;
  --danger: #b42318;
  --shadow: 0 18px 50px rgba(27, 35, 58, 0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
.wrap { width: min(1120px, calc(100% - 40px)); margin: auto; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 100; background: var(--ink); color: #fff; padding: 10px 14px; border-radius: 8px; }
.skip-link:focus { top: 12px; }

.nav {
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(228, 231, 236, 0.9);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
}
.nav .wrap { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 9px; font-family: Inter, ui-sans-serif, system-ui, sans-serif; font-weight: 800; font-size: 21px; letter-spacing: -0.6px; }
.brand-mark { width: 31px; height: 31px; display: grid; place-items: center; border-radius: 9px; color: #fff; background: linear-gradient(145deg, #7668ff, #4737dc); font-size: 15px; box-shadow: 0 7px 16px rgba(91, 76, 240, 0.25); }
.brand span { color: var(--accent); }
.navlinks { display: flex; align-items: center; gap: 25px; color: #475467; font-size: 14px; font-weight: 600; }
.navlinks a:hover, .footer a:hover { color: var(--accent); }

.hero {
  overflow: hidden;
  padding: 84px 0 52px;
  text-align: center;
  background:
    radial-gradient(circle at 17% 15%, rgba(101, 214, 227, 0.13), transparent 25%),
    radial-gradient(circle at 83% 12%, rgba(112, 91, 240, 0.14), transparent 26%);
}
.eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 7px 11px; border: 1px solid #d9d5ff; border-radius: 999px; background: rgba(255,255,255,.75); color: var(--accent-dark); font-size: 12px; font-weight: 700; letter-spacing: .02em; }
.eyebrow-dot { width: 7px; height: 7px; border-radius: 50%; background: #18a875; box-shadow: 0 0 0 4px rgba(24,168,117,.12); }
.hero h1 { max-width: 880px; margin: 20px auto 18px; font: 800 clamp(42px, 6vw, 68px)/1.02 Inter, ui-sans-serif, system-ui, sans-serif; letter-spacing: -3px; }
.hero h1 span { color: var(--accent); }
.hero p { max-width: 690px; margin: 0 auto; color: var(--muted); font-size: 18px; line-height: 1.7; }
.hero-actions { display: flex; justify-content: center; gap: 12px; margin-top: 27px; flex-wrap: wrap; }
.hero-note { margin-top: 17px; color: #667085; font-size: 13px; }
.hero-note strong { color: var(--ok); }

.btn { border: 0; border-radius: 11px; padding: 12px 17px; background: var(--accent); color: #fff; font-weight: 700; cursor: pointer; transition: transform .15s, background .15s, box-shadow .15s; }
.btn:hover { transform: translateY(-1px); background: var(--accent-dark); box-shadow: 0 8px 20px rgba(91,76,240,.2); }
.btn:focus-visible, .drop:focus-visible, a:focus-visible { outline: 3px solid rgba(91, 76, 240, .28); outline-offset: 3px; }
.btn.secondary { background: #fff; color: var(--ink); border: 1px solid var(--line); box-shadow: none; }
.btn.secondary:hover { border-color: #c7cbd2; }
.btn.large { padding: 14px 20px; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

.section-head { display: flex; align-items: end; justify-content: space-between; gap: 20px; padding-top: 54px; }
.section-head h2 { margin: 0; font: 800 30px/1.2 Inter, ui-sans-serif, system-ui, sans-serif; letter-spacing: -.8px; }
.section-head p { margin: 8px 0 0; color: var(--muted); }
.tool-search { width: min(310px, 100%); height: 44px; border: 1px solid var(--line); border-radius: 12px; background: #fff; padding: 0 14px; color: var(--ink); box-shadow: 0 4px 14px rgba(16,24,40,.04); }
.tool-search:focus { outline: 3px solid rgba(91,76,240,.13); border-color: #a7a0f9; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; padding: 24px 0 74px; }
.card { position: relative; background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 23px; transition: transform .18s, box-shadow .18s, border-color .18s; overflow: hidden; }
.card::after { content: '→'; position: absolute; right: 20px; top: 22px; color: #98a2b3; font-size: 19px; transition: transform .18s, color .18s; }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: #d1cdfc; }
.card:hover::after { transform: translateX(3px); color: var(--accent); }
.card .icon { width: 44px; height: 44px; border-radius: 13px; background: var(--accent-soft); display: grid; place-items: center; font-size: 21px; margin-bottom: 16px; }
.card:nth-child(3n+2) .icon { background: var(--cyan-soft); }
.card h3 { margin: 0 0 8px; padding-right: 24px; font: 700 17px/1.3 Inter, ui-sans-serif, system-ui, sans-serif; }
.card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.6; }
.card[hidden] { display: none; }
.empty-search { display: none; grid-column: 1 / -1; padding: 30px; text-align: center; color: var(--muted); }

.trust-strip { background: #17152d; color: #fff; }
.trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; }
.trust-item { padding: 35px 30px; text-align: center; background: #17152d; }
.trust-item strong { display: block; font: 800 25px Inter, ui-sans-serif, system-ui, sans-serif; }
.trust-item span { display: block; margin-top: 7px; color: #b8b5d0; font-size: 14px; }

.tool-shell { max-width: 840px; margin: 48px auto 84px; padding: 0 20px; }
.crumb { font-size: 13px; color: var(--muted); margin-bottom: 22px; }
.crumb a:hover { color: var(--accent); }
.tool-head { text-align: center; margin-bottom: 27px; }
.tool-head h1 { font: 800 clamp(34px, 5vw, 45px)/1.1 Inter, ui-sans-serif, system-ui, sans-serif; margin: 0 0 13px; letter-spacing: -1.3px; }
.tool-head p { color: var(--muted); margin: 0 auto; max-width: 680px; line-height: 1.65; }
.privacy { display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; padding: 7px 11px; border-radius: 999px; background: var(--ok-soft); color: var(--ok); font-size: 12px; font-weight: 700; }
.toolbox { background: #fff; border: 1px solid var(--line); border-radius: 22px; padding: 25px; box-shadow: var(--shadow); }
.drop { border: 2px dashed #cbd0d9; border-radius: 17px; padding: 47px 18px; text-align: center; background: #fafbfc; cursor: pointer; transition: border-color .15s, background .15s, transform .15s; }
.drop:hover, .drop.drag { border-color: var(--accent); background: var(--accent-soft); transform: translateY(-1px); }
.drop strong { display: block; margin-bottom: 7px; font-weight: 700; }
.drop span { display: block; max-width: 100%; font-size: 13px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; }
input[type=file] { display: none; }
.controls { display: flex; align-items: end; gap: 12px; flex-wrap: wrap; margin-top: 18px; }
.controls label { font-size: 13px; color: var(--muted); display: grid; gap: 7px; }
.controls select, .controls input[type=number], .controls input[type=text] { height: 42px; border: 1px solid var(--line); border-radius: 10px; padding: 0 11px; background: white; min-width: 140px; color: var(--ink); }
.status { min-height: 20px; margin-top: 16px; font-size: 14px; color: var(--muted); white-space: pre-wrap; }
.status.ok { color: var(--ok); }
.status.err { color: var(--danger); }
.result { margin-top: 18px; }
.result textarea { width: 100%; min-height: 220px; resize: vertical; border: 1px solid var(--line); border-radius: 12px; padding: 14px; color: var(--ink); }
.preview { max-width: 100%; border: 1px solid var(--line); border-radius: 12px; }
.seo { margin-top: 34px; background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 28px; }
.seo h2 { margin: 28px 0 10px; font: 750 22px/1.3 Inter, ui-sans-serif, system-ui, sans-serif; letter-spacing: -.3px; }
.seo h2:first-child { margin-top: 0; }
.seo p, .seo li { color: #475467; line-height: 1.75; }
.seo a, .legal a { color: var(--accent-dark); text-decoration: underline; text-underline-offset: 3px; }

.legal { max-width: 820px; margin: 58px auto 90px; padding: 0 20px; }
.legal-card { background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: clamp(24px, 5vw, 48px); box-shadow: var(--shadow); }
.legal h1 { margin: 0 0 12px; font: 800 clamp(34px, 5vw, 46px)/1.1 Inter, ui-sans-serif, system-ui, sans-serif; letter-spacing: -1px; }
.legal h2 { margin: 32px 0 10px; font: 750 22px/1.3 Inter, ui-sans-serif, system-ui, sans-serif; }
.legal p, .legal li { color: #475467; line-height: 1.75; }
.legal .updated { color: #98a2b3; font-size: 13px; }
.notice { border-left: 4px solid var(--accent); background: var(--accent-soft); padding: 14px 16px; border-radius: 0 10px 10px 0; color: #40398a; }
.contact-box { margin-top: 25px; padding: 20px; border: 1px solid var(--line); border-radius: 14px; background: #fafbfc; }

.footer { border-top: 1px solid var(--line); padding: 34px 0 46px; color: var(--muted); font-size: 13px; background: #fff; }
.footer .wrap { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer-links { display: flex; gap: 17px; flex-wrap: wrap; }

@media (max-width: 820px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .hero { padding-top: 65px; }
  .hero h1 { letter-spacing: -2px; }
  .navlinks a:not(:first-child) { display: none; }
  .section-head { align-items: stretch; flex-direction: column; }
  .tool-search { width: 100%; }
}

@media (max-width: 560px) {
  .wrap { width: min(100% - 28px, 1120px); }
  .grid { grid-template-columns: 1fr; padding-bottom: 55px; }
  .hero { padding: 52px 0 38px; }
  .hero h1 { font-size: 40px; letter-spacing: -1.7px; }
  .hero p { font-size: 16px; }
  .trust-grid { grid-template-columns: 1fr; }
  .trust-item { padding: 23px; }
  .tool-shell { margin-top: 34px; }
  .toolbox { padding: 16px; }
  .drop { padding: 38px 12px; }
  .controls .btn { width: 100%; }
  .legal { margin-top: 34px; }
  .footer .wrap { flex-direction: column; }
}

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