/* ============================================================
   YOUR ONLINE TOOLS — style.css
   All design tokens, reset, layout, and component styles.
   Edit colors/fonts here — they apply everywhere.
============================================================ */

/* ============================================================
   DESIGN TOKENS
   Change these to retheme the entire site in one place.
============================================================ */
:root {
  --color-navy:       #0F1F3D;
  --color-navy-mid:   #1A3260;
  --color-accent:     #2563EB;
  --color-accent-h:   #1D4ED8;
  --color-white:      #FFFFFF;
  --color-surface:    #F5F7FA;
  --color-border:     #DDE3EF;
  --color-text:       #1C2B4A;
  --color-text-mid:   #4A5878;
  --color-text-muted: #7A88A8;
  --color-card-bg:    #FFFFFF;

  --font-display: 'Sora', sans-serif;
  --font-body:    'Inter', sans-serif;

  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;

  --shadow-card:   0 1px 4px rgba(15,31,61,.07), 0 4px 16px rgba(15,31,61,.06);
  --shadow-card-h: 0 4px 12px rgba(15,31,61,.10), 0 8px 28px rgba(15,31,61,.09);

  --max-w:  1200px;
  --gutter: clamp(1rem, 4vw, 2rem);
}

/* ============================================================
   RESET & BASE
============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-surface);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

a { color: var(--color-accent); text-decoration: none; }
a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 3px;
}

/* Screen-reader only utility */
.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;
}

/* ============================================================
   LAYOUT
============================================================ */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ============================================================
   SKIP LINK — accessibility
============================================================ */
.skip-link {
  position: absolute;
  top: -999px;
  left: 1rem;
  background: var(--color-accent);
  color: #fff;
  padding: .5rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: .875rem;
  z-index: 9999;
}
.skip-link:focus { top: 1rem; }

/* ============================================================
   HEADER
============================================================ */
.site-header {
  background: var(--color-navy);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,.07);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  height: 60px;
}

/* Wordmark */
.site-logo {
  display: flex;
  align-items: center;
  gap: .55rem;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--color-accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.logo-icon svg { display: block; }

.logo-text {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -.01em;
  line-height: 1.2;
}
.logo-text span {
  color: rgba(255,255,255,.5);
  font-weight: 600;
}

/* Nav */
.site-nav {
  display: flex;
  align-items: center;
  gap: .25rem;
}
.site-nav a {
  font-size: .875rem;
  font-weight: 500;
  color: rgba(255,255,255,.72);
  padding: .4rem .75rem;
  border-radius: var(--radius-sm);
  transition: color .15s, background .15s;
  text-decoration: none;
}
.site-nav a:hover {
  color: #fff;
  background: rgba(255,255,255,.08);
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: .4rem;
  border-radius: var(--radius-sm);
  color: rgba(255,255,255,.8);
  line-height: 1;
}
.nav-toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ============================================================
   HERO / SEARCH SECTION
============================================================ */
.hero {
  background: var(--color-navy);
  padding: clamp(2.5rem, 6vw, 5rem) 0 clamp(2rem, 5vw, 4rem);
  text-align: center;
}

.hero-eyebrow {
  display: inline-block;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.2;
  letter-spacing: -.02em;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: .75rem;
}

.hero-sub {
  font-size: clamp(.9rem, 2vw, 1.05rem);
  color: rgba(255,255,255,.55);
  max-width: 480px;
  margin-inline: auto;
  margin-bottom: 2rem;
}

/* Search bar */
.search-form {
  max-width: 560px;
  margin-inline: auto;
  position: relative;
}
.search-wrap {
  display: flex;
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0,0,0,.18);
}
.search-icon {
  display: flex;
  align-items: center;
  padding: 0 1rem 0 1.1rem;
  color: var(--color-text-muted);
  pointer-events: none;
  flex-shrink: 0;
}
#tool-search {
  flex: 1;
  border: none;
  outline: none;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
  padding: .85rem .5rem;
  background: transparent;
  min-width: 0;
}
#tool-search::placeholder { color: var(--color-text-muted); }

.search-btn {
  background: var(--color-accent);
  border: none;
  color: #fff;
  width: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background .15s;
  flex-shrink: 0;
}
.search-btn:hover { background: var(--color-accent-h); }
.search-btn:focus-visible {
  outline: 3px solid rgba(255,255,255,.6);
  outline-offset: -2px;
}

/* Stats bar */
.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}
.hero-stat {
  font-size: .82rem;
  color: rgba(255,255,255,.45);
  display: flex;
  align-items: center;
  gap: .4rem;
}
.hero-stat svg { flex-shrink: 0; }

/* ============================================================
   TOOLS SECTION
============================================================ */
.tools-section {
  flex: 1;
  padding: clamp(2rem, 5vw, 3.5rem) 0 clamp(2.5rem, 6vw, 5rem);
}

/* Section header */
.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.section-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -.01em;
}
.section-count {
  font-size: .8rem;
  color: var(--color-text-muted);
}

/* Filter bar */
.filter-bar {
  display: flex;
  gap: .5rem;
  margin-bottom: 1.75rem;
  overflow-x: auto;
  padding-bottom: .25rem;
  -ms-overflow-style: none;
  scrollbar-width: none;
}
.filter-bar::-webkit-scrollbar { display: none; }

.filter-btn {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  color: var(--color-text-mid);
  font-family: var(--font-body);
  font-size: .8rem;
  font-weight: 500;
  padding: .38rem .85rem;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
  transition: background .12s, border-color .12s, color .12s;
}
.filter-btn:hover {
  background: var(--color-surface);
  border-color: var(--color-text-muted);
  color: var(--color-text);
}
.filter-btn.active {
  background: var(--color-navy);
  border-color: var(--color-navy);
  color: #fff;
}
.filter-btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Tool grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.125rem;
}

/* Tool card */
.tool-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.35rem 1.35rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: .75rem;
  text-decoration: none;
  color: inherit;
  transition: box-shadow .18s, transform .18s, border-color .18s;
  box-shadow: var(--shadow-card);
}
.tool-card:hover {
  box-shadow: var(--shadow-card-h);
  transform: translateY(-2px);
  border-color: rgba(37,99,235,.25);
}
.tool-card:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.card-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.card-body { flex: 1; }

.card-title {
  font-family: var(--font-display);
  font-size: .95rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -.01em;
  margin-bottom: .25rem;
  line-height: 1.3;
}

.card-desc {
  font-size: .825rem;
  color: var(--color-text-mid);
  line-height: 1.5;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: .6rem;
  border-top: 1px solid var(--color-border);
}

.card-tag {
  font-size: .72rem;
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: .04em;
  text-transform: uppercase;
}

.card-arrow {
  color: var(--color-accent);
  display: flex;
  align-items: center;
}

/* Empty state */
.tools-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem 1rem;
}
.tools-empty-icon {
  margin-inline: auto;
  margin-bottom: 1rem;
  color: var(--color-border);
}
.tools-empty h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text-mid);
  margin-bottom: .4rem;
}
.tools-empty p {
  font-size: .875rem;
  color: var(--color-text-muted);
  max-width: 320px;
  margin-inline: auto;
}

/* No results */
.no-results {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3rem 1rem;
}
.no-results p {
  font-size: .9rem;
  color: var(--color-text-mid);
}
.no-results strong { color: var(--color-text); }

/* ============================================================
   FOOTER
============================================================ */
.site-footer {
  background: var(--color-navy);
  border-top: 1px solid rgba(255,255,255,.06);
  padding: clamp(2rem, 4vw, 3rem) 0 clamp(1.25rem, 3vw, 2rem);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem 3rem;
  align-items: start;
}

.footer-brand .logo-text { font-size: 1rem; }

.footer-tagline {
  font-size: .82rem;
  color: rgba(255,255,255,.38);
  margin-top: .45rem;
  max-width: 280px;
  line-height: 1.6;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  list-style: none;
}
.footer-links a {
  font-size: .825rem;
  color: rgba(255,255,255,.5);
  text-decoration: none;
  transition: color .15s;
}
.footer-links a:hover { color: rgba(255,255,255,.85); }

.footer-bottom {
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255,255,255,.07);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: .775rem;
  color: rgba(255,255,255,.28);
}

.footer-note {
  font-size: .775rem;
  color: rgba(255,255,255,.28);
}

/* ============================================================
   RESPONSIVE
============================================================ */
@media (max-width: 680px) {
  .site-nav {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--color-navy-mid);
    padding: .75rem var(--gutter);
    flex-direction: column;
    align-items: stretch;
    border-bottom: 1px solid rgba(255,255,255,.08);
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: .65rem .75rem; }
  .nav-toggle { display: flex; align-items: center; }
  .site-header { position: relative; }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .footer-links { gap: 1rem; }
}

@media (max-width: 440px) {
  .tools-grid { grid-template-columns: 1fr; }
  .hero-stats  { gap: 1.25rem; }
}

/* ============================================================
   REDUCED MOTION
============================================================ */
@media (prefers-reduced-motion: reduce) {
  .tool-card { transition: none; }
  html        { scroll-behavior: auto; }
}