:root {
  --bg: #f8fafc;
  --bg-alt: #eef4ff;
  --surface: #ffffff;
  --surface-2: rgba(255, 255, 255, 0.72);
  --text: #0f172a;
  --text-soft: #475569;
  --muted: #64748b;
  --line: rgba(148, 163, 184, 0.24);
  --line-strong: rgba(37, 99, 235, 0.16);
  --primary: #2563eb;
  --primary-2: #38bdf8;
  --primary-dark: #1d4ed8;
  --success: #0f766e;
  --warning: #b45309;
  --shadow-sm: 0 10px 30px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 24px 60px rgba(15, 23, 42, 0.1);
  --shadow-lg: 0 30px 80px rgba(37, 99, 235, 0.16);
  --radius-sm: 14px;
  --radius-md: 20px;
  --radius-lg: 28px;
  --container: 1180px;
  --header-height: 82px;
  --transition: 180ms ease;
}

* { 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;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.18), transparent 34%),
    radial-gradient(circle at top right, rgba(37, 99, 235, 0.12), transparent 28%),
    linear-gradient(180deg, #f8fbff 0%, #f8fafc 35%, #f8fafc 100%);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { cursor: pointer; }
:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.3);
  outline-offset: 2px;
}
.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-link {
  position: absolute;
  left: 1rem;
  top: -100%;
  z-index: 1000;
  padding: 0.75rem 1rem;
  background: var(--text);
  color: #fff;
  border-radius: 999px;
}
.skip-link:focus { top: 1rem; }
.container {
  width: min(calc(100% - 2rem), var(--container));
  margin-inline: auto;
}
[id] { scroll-margin-top: calc(var(--header-height) + 1rem); }
.section {
  padding: clamp(3.5rem, 5vw, 6rem) 0;
}
.section--compact { padding-top: 1.5rem; }
.section--alt {
  background: linear-gradient(180deg, rgba(239, 246, 255, 0.7), rgba(255, 255, 255, 0.92));
  border-block: 1px solid var(--line);
}
.section-heading {
  display: grid;
  gap: 1rem;
  margin-bottom: 2rem;
  max-width: 70rem;
}
.section-heading--row {
  grid-template-columns: 1.2fr 1fr;
  align-items: end;
}
.section-heading h1,
.section-heading h2,
.section-heading h3,
.hero h1,
.legal-page h1,
.not-found-page h1 {
  margin: 0;
  line-height: 1.1;
  letter-spacing: -0.03em;
}
.hero h1 { font-size: clamp(2.35rem, 5vw, 4.5rem); }
.section-heading h2,
.legal-page h1,
.not-found-page h1 { font-size: clamp(1.8rem, 3vw, 3rem); }
.section-heading p,
.hero__lead,
.content-card p,
.legal-page p,
.tool-category__header p,
.site-footer__text { color: var(--text-soft); }
.section-kicker,
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  width: fit-content;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 0.875rem;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(180%) blur(18px);
  background: rgba(248, 250, 252, 0.82);
  border-bottom: 1px solid rgba(148, 163, 184, 0.14);
}
.site-header__inner {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  line-height: 0;
}
.brand__logo {
  display: block;
  width: clamp(150px, 15vw, 220px);
  max-width: 100%;
  height: auto;
}
.brand__logo--footer {
  width: min(220px, 100%);
}
.tool-card__icon svg,
.feature-card__icon svg,
.category-card__icon svg,
.hero-panel__icon svg,
.tool-category__icon svg,
.search-field__icon svg,
.contact-card__icon svg,
.empty-state__icon svg {
  width: 1.4rem;
  height: 1.4rem;
}
.site-nav ul,
.footer-links,
.hero__stats,
.category-grid,
.feature-grid,
.content-grid,
.faq-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.site-nav ul {
  display: flex;
  gap: clamp(0.8rem, 1.2vw, 1.25rem);
  align-items: center;
}
.site-nav a {
  display: block;
  color: var(--text-soft);
  font-weight: 600;
  font-size: 0.97rem;
  transition: color var(--transition);
}
.site-nav a:hover,
.site-nav a:focus-visible,
.footer-links a:hover,
.footer-links a:focus-visible { color: var(--primary); }
.nav-toggle {
  display: none;
  width: 3rem;
  height: 3rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.75);
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  flex-direction: column;
}
.nav-toggle span:not(.sr-only) {
  width: 1.15rem;
  height: 2px;
  background: var(--text);
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(4px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-4px) rotate(-45deg); }
.hero {
  padding: clamp(2rem, 4vw, 3.5rem) 0 clamp(3rem, 7vw, 6rem);
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}
.hero__lead {
  font-size: clamp(1rem, 1.4vw, 1.18rem);
  max-width: 42rem;
  margin: 0;
}
.hero__content {
  display: grid;
  gap: 1.4rem;
}
.hero__content,
.hero-panel,
.hero-panel__card > div,
.tool-category__header > * { min-width: 0; }
.hero__actions {
  display: flex;
  gap: 0.85rem;
  flex-wrap: wrap;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.9rem 1.25rem;
  border-radius: 16px;
  font-weight: 700;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}
.button:hover { transform: translateY(-1px); }
.button--primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  box-shadow: 0 18px 36px rgba(37, 99, 235, 0.22);
}
.button--secondary {
  background: rgba(255, 255, 255, 0.72);
  color: var(--text);
  border: 1px solid var(--line);
}
.hero__stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  max-width: 44rem;
}
.hero__stats li,
.hero-panel__card,
.category-card,
.feature-card,
.content-card,
.contact-card,
.legal-page__container,
.not-found-page__container {
  border: 1px solid var(--line);
  background: var(--surface-2);
  box-shadow: var(--shadow-sm);
}
.hero__stats li {
  padding: 1rem;
  border-radius: 18px;
}
.hero__stats strong {
  display: block;
  font-size: 1.2rem;
  letter-spacing: -0.03em;
}
.hero__stats span { color: var(--muted); font-size: 0.92rem; }
.hero-panel {
  display: grid;
  gap: 1rem;
}
.hero-panel__card {
  padding: 1.15rem;
  border-radius: 24px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
}
.hero-panel__icon,
.feature-card__icon,
.tool-category__icon,
.search-field__icon,
.contact-card__icon,
.empty-state__icon {
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
  border-radius: 16px;
  color: var(--primary-dark);
  background: rgba(37, 99, 235, 0.1);
}
.hero-panel__card h2,
.feature-card h3,
.tool-category__header h3,
.content-card h2,
.contact-card h2,
.legal-page h2,
.empty-state h3 { margin: 0 0 0.35rem; }
.category-grid,
.feature-grid,
.content-grid {
  display: grid;
  gap: 1.2rem;
}
.category-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.feature-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.content-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.category-card,
.feature-card,
.content-card,
.contact-card,
.legal-page__container,
.not-found-page__container {
  border-radius: 24px;
}
.category-card,
.feature-card,
.content-card { padding: 1.35rem; }
.category-card {
  display: grid;
  gap: 0.75rem;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.category-card:hover,
.category-card:focus-visible,
.tool-card:hover,
.tool-card:focus-within,
.feature-card:hover,
.content-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--line-strong);
}
.category-card__icon,
.tool-card__icon {
  width: 3.25rem;
  height: 3.25rem;
  display: grid;
  place-items: center;
  border-radius: 18px;
  color: var(--primary-dark);
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.12), rgba(56, 189, 248, 0.12));
}
.category-card strong,
.tool-card__title { font-size: 1.1rem; letter-spacing: -0.025em; }
.category-card p,
.category-card span,
.tool-card__description,
.tool-card__keywords,
.feature-card p,
.contact-card p,
.legal-page .muted,
.empty-state p { color: var(--text-soft); }
.tool-explorer { padding-top: 1rem; }
.toolbar {
  position: sticky;
  top: calc(var(--header-height) + 0.85rem);
  z-index: 20;
  display: grid;
  gap: 1rem;
  padding: 1rem;
  margin-bottom: 2rem;
  background: rgba(248, 250, 252, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 24px;
  backdrop-filter: blur(12px);
}
.search-field {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 0.9rem;
  min-height: 3.75rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
}
.search-field input {
  border: 0;
  background: transparent;
  color: var(--text);
  width: 100%;
}
.search-field input::placeholder { color: var(--muted); }
.toolbar__meta { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.toolbar__meta p { margin: 0; color: var(--text-soft); font-weight: 600; }
.chip-row {
  display: flex;
  gap: 0.7rem;
  overflow: auto hidden;
  padding-bottom: 0.25rem;
  scrollbar-width: thin;
}
.chip {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.9);
  color: var(--text);
  border-radius: 999px;
  min-height: 2.75rem;
  padding: 0.55rem 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  white-space: nowrap;
  font-weight: 700;
}
.chip strong {
  padding: 0.18rem 0.45rem;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.08);
  font-size: 0.86rem;
}
.chip.is-active {
  border-color: transparent;
  color: #fff;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}
.chip.is-active strong {
  background: rgba(255, 255, 255, 0.16);
}
.tool-category {
  display: grid;
  gap: 1.2rem;
  margin-bottom: 3rem;
}
.tool-category__header {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 1rem;
}
.tool-category__header > div {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
}
.tool-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.tool-grid--featured { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.tool-card {
  position: relative;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 24px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.tool-card__link {
  display: grid;
  gap: 0.85rem;
  padding: 1.2rem;
  min-height: 100%;
}
.tool-card__badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  background: rgba(15, 118, 110, 0.12);
  color: var(--success);
  font-weight: 700;
  font-size: 0.78rem;
}
.tool-card__title { margin: 0; }
.tool-card__description { margin: 0; font-size: 0.95rem; }
.tool-card__keywords {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
}
.tool-card__action {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--primary);
  font-weight: 700;
}
.tool-card__action::after {
  content: '→';
  transition: transform var(--transition);
}
.tool-card:hover .tool-card__action::after,
.tool-card:focus-within .tool-card__action::after { transform: translateX(4px); }
.tool-card--disabled {
  opacity: 0.8;
  background: linear-gradient(180deg, #fff, #f8fafc);
}
.tool-card--disabled .tool-card__action { color: var(--warning); }
.feature-card { display: grid; gap: 0.75rem; }
.content-card p:last-child,
.legal-page section:last-child p:last-child { margin-bottom: 0; }
.faq-list {
  display: grid;
  gap: 0.9rem;
}
.faq-item {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.88);
  padding: 0.2rem 1rem;
}
.faq-item summary {
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  padding: 1rem 0;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item p { margin: 0 0 1rem; color: var(--text-soft); }
.site-footer {
  padding: 2.5rem 0 1.4rem;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.8);
}
.site-footer__grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1.3fr 1fr 1fr 1.1fr;
}
.brand--footer { margin-bottom: 1rem; }
.site-footer__title {
  margin: 0 0 0.75rem;
  font-size: 1rem;
}
.footer-links { display: grid; gap: 0.6rem; }
.site-footer__bottom {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding-top: 1.5rem;
  margin-top: 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.94rem;
}
.legal-page,
.not-found-page { padding: 3rem 0 5rem; }
.legal-page__container,
.not-found-page__container {
  padding: clamp(1.5rem, 3vw, 2.5rem);
  max-width: 52rem;
}
.legal-page section + section { margin-top: 1.6rem; }
.contact-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
  padding: 1.2rem;
  margin: 2rem 0;
}
.not-found-page__container { text-align: center; margin-inline: auto; }
.empty-state {
  text-align: center;
  display: grid;
  gap: 0.75rem;
  place-items: center;
  padding: 3rem 1rem 2rem;
}
.hidden { display: none !important; }

@media (max-width: 1100px) {
  .hero__grid,
  .section-heading--row,
  .tool-category__header,
  .feature-grid,
  .category-grid,
  .tool-grid,
  .tool-grid--featured {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .site-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero__grid,
  .section-heading--row,
  .tool-category__header {
    display: grid;
    align-items: start;
  }
}

@media (max-width: 820px) {
  :root { --header-height: 74px; }
  .site-header__inner { min-height: var(--header-height); }
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: calc(100% + 0.5rem);
    display: none;
    padding: 1rem;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: var(--shadow-md);
    max-height: 70vh;
    overflow-y: auto;
  }
  .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; align-items: flex-start; gap: 0.4rem; }
  .site-nav a { width: 100%; padding: 0.65rem 0; }
  .hero__grid,
  .section-heading--row,
  .tool-category__header,
  .hero__stats,
  .feature-grid,
  .content-grid,
  .category-grid,
  .tool-grid,
  .tool-grid--featured,
  .site-footer__grid { grid-template-columns: 1fr; }
  .hero { padding: 1.5rem 0 3rem; }
  .toolbar {
    position: static;
    top: auto;
    backdrop-filter: none;
  }
  .hero-panel__card {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 0.75rem;
  }
  .hero-panel__icon {
    margin: 0 auto;
  }
}

@media (max-width: 560px) {
  .container { width: min(calc(100% - 1rem), var(--container)); }
  .site-header__inner { gap: 0.65rem; }
  .brand__logo { width: min(170px, 100%); }
  .brand__logo--footer { width: min(200px, 100%); }
  .hero h1 { font-size: clamp(2rem, 11vw, 2.85rem); }
  .hero__actions,
  .site-footer__bottom { flex-direction: column; align-items: stretch; }
  .button { width: 100%; }
  .hero__stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero__stats li { min-height: 5.25rem; }
  .hero-panel__card { padding: 1rem; border-radius: 20px; }
  .section-heading,
  .hero__content { gap: 1rem; }
  .toolbar { padding: 0.85rem; border-radius: 20px; }
  .search-field { min-height: 3.35rem; padding-inline: 0.85rem; }
  .tool-card__link,
  .category-card,
  .feature-card,
  .content-card,
  .contact-card { padding: 1rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}