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

:root {
  --bg: #ffffff;
  --text: #020617;
  --card: #ffffff;
  --border: rgba(0,0,0,0.08);
}

body.dark {
  --bg: #020617;
  --text: #e5e7eb;
  --card: rgba(2,6,23,.7);
  --border: rgba(255,255,255,.08);
}

*{
  margin:0;
  padding:0;
  box-sizing:border-box;
}

body{
  font-family:'Inter',sans-serif;
  background: var(--bg);
  color: var(--text);
  transition: background .3s ease, color .3s ease;
}

/* NAVBAR */
.navbar{
  position:sticky;
  top:0;
  z-index:50;
  display:flex;
  justify-content:space-between;
  padding:16px 28px;
  background:rgba(255,255,255,0.75);
  backdrop-filter:blur(16px);
}

body.dark .navbar{
  background:rgba(15,23,42,0.8);
}


.logo{
  font-family:'Space Grotesk',sans-serif;
  font-weight:700;
}

.navbar button{
  background:#020617;
  border:none;
  padding:8px 12px;
  border-radius:50%;
  cursor:pointer;
  color:#fff;
}

/* HERO */
.hero{
  text-align:center;
  padding:70px 20px 50px;
}

.hero span{
  background:linear-gradient(135deg,#38bdf8,#a78bfa);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
}

.hero p{
  margin:16px auto 28px;
  max-width:600px;
  opacity:.8;
}

/* SEARCH */
.search-wrapper{
  max-width:500px;
  margin:auto;
  position:relative;
}

.search-wrapper input{
  width:100%;
  padding:16px 22px 16px 50px;
  border-radius:999px;
  border:none;
  background: var(--bg);
  color: var(--text);
}

body.dark .search-wrapper input{
  background:#020617;
}


.search-icon{
  position:absolute;
  left:18px;
  top:50%;
  transform:translateY(-50%);
  opacity:.6;
}

/* APP */
.app{
  display:flex;
  max-width:1600px;
  margin:auto;
}

/* SIDEBAR */
.sidebar{
  width:240px;
  padding:40px 24px;
}

.sidebar ul{ list-style:none; }

.sidebar li{
  padding:10px 18px;
  border-radius:999px;
  margin-bottom:8px;
  cursor:pointer;
}

.sidebar li.active,
.sidebar li:hover{
  background:linear-gradient(135deg,#38bdf8,#22d3ee);
  color:#020617;
}

/* MAIN */
main{ flex:1; }

.result-count{
  padding-left:30px;
  font-size:.8rem;
  opacity:.7;
}

/* GRID */
.masonry{
  column-count:4;
  column-gap:24px;
  padding:30px;
}

/* TOOL CARD — CLICK SAFE */
.tool-card{
  position:relative;
  isolation:isolate;
  break-inside:avoid;
  margin-bottom:24px;
  padding:22px;
  border-radius:22px;
  background: var(--card);
  border: 1px solid var(--border);
  transition:.3s;
}

.tool-card:hover{
  transform:translateY(-6px);
  box-shadow:0 20px 40px rgba(56,189,248,.25);
}

/* animated border */
.tool-card::before{
  content:"";
  position:absolute;
  inset:0;
  padding:1.5px;
  border-radius:22px;
  background:linear-gradient(120deg,#38bdf8,#22d3ee,#a78bfa);
  background-size:300% 300%;
  animation:borderFlow 6s linear infinite;
  opacity:0;
  pointer-events:none;
  z-index:0;
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;
          mask-composite:exclude;
}

.tool-card:hover::before{ opacity:1; }

@keyframes borderFlow{
  0%{background-position:0% 50%}
  50%{background-position:100% 50%}
  100%{background-position:0% 50%}
}

.tool-card h3{ margin-bottom:8px; }

.tool-card p{
  font-size:.8rem;
  opacity:.8;
}

/* VISIT BUTTON — GUARANTEED CLICKABLE */
.visit-btn{
  display:inline-block;
  margin-top:12px;
  padding:8px 16px;
  border-radius:999px;
  background:linear-gradient(135deg,#38bdf8,#22d3ee);
  color:#020617;
  text-decoration:none;
  font-size:.75rem;
  font-weight:600;
  position:relative;
  z-index:10;
  cursor:pointer;
}

.tag{
  display:inline-block;
  margin:6px 6px 0 0;
  font-size:.65rem;
  opacity:.6;
}

/* FOOTER */
.footer{
  text-align:center;
  padding:36px 20px;
  opacity:.7;
}

/* BACK TO TOP */
#backToTop{
  position:fixed;
  bottom:26px;
  right:26px;
  width:46px;
  height:46px;
  border-radius:50%;
  border:none;
  background:linear-gradient(135deg,#38bdf8,#22d3ee);
  cursor:pointer;
  display:none;
}




/* =========================================
   FLUID SAME-EXPERIENCE RESPONSIVE ADD-ON
   (Safe for live deployment)
   ========================================= */

/* 1. Fluid typography (same hierarchy everywhere) */
body {
  font-size: clamp(14px, 1.1vw, 16px);
}

.hero h1 {
  font-size: clamp(1.6rem, 2.8vw, 2.4rem);
}

.hero p {
  font-size: clamp(0.9rem, 1.1vw, 1rem);
}

/* 2. Keep sidebar SAME, just scale it */
@media (max-width: 1024px) {
  .sidebar {
    width: 210px;
  }
}

@media (max-width: 768px) {
  .sidebar {
    width: 180px;
    padding: 24px 14px;
  }

  .sidebar li {
    font-size: 0.85rem;
    padding: 8px 12px;
  }
}

/* 3. Same grid, adaptive density (not layout change) */
@media (max-width: 1024px) {
  .masonry { column-count: 3; }
}

@media (max-width: 768px) {
  .masonry { column-count: 2; }
}

@media (max-width: 480px) {
  .masonry { column-count: 1; }
}

/* 4. Touch = hover equivalent (same feedback) */
.tool-card {
  transition: transform .25s ease, box-shadow .25s ease;
}

.tool-card:active {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(56,189,248,.25);
}

/* 5. Invisible touch target improvements */
.sidebar li,
.visit-btn,
#backToTop {
  min-height: 44px;
}

/* 6. Search focus clarity (same UX, better feedback) */
.search-wrapper input:focus {
  outline: none;
  box-shadow: 0 0 0 2px rgba(56,189,248,.35);
}

/* 7. Navbar scaling without redesign */
@media (max-width: 480px) {
  .navbar {
    padding: 14px 18px;
  }
}

/* 8. Back-to-top thumb comfort (same control) */
@media (max-width: 480px) {
  #backToTop {
    width: 52px;
    height: 52px;
    bottom: 20px;
    right: 20px;
  }
}

/* 9. Reduce motion for accessibility (professional polish) */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}