/* Kelo Web Tools - modern blue-violet gradient theme (light mode) */
:root{
  --bg:#ffffff; --text:#0f1724; --muted:#6b7280; --accent1:#6d28d9; --accent2:#0ea5e9;
  --card:#ffffff; --radius:12px; --maxw:1100px;
  --container-pad:20px;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; background:linear-gradient(180deg,#fbfdff,#ffffff); color:var(--text);
  -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
  line-height:1.5;
}
.container{max-width:var(--maxw); margin:0 auto; padding:var(--container-pad);}
.site-header{
  background:linear-gradient(90deg, rgba(109,40,217,0.06), rgba(14,165,233,0.03));
  border-bottom:1px solid rgba(14,165,233,0.06); position:sticky; top:0; z-index:50;
  backdrop-filter: blur(6px);
}
.header-inner{display:flex; align-items:center; justify-content:space-between; gap:12px; padding:14px 0;}
.brand{font-weight:800; color:var(--accent1); text-decoration:none; font-size:1.25rem; letter-spacing:0.4px;}
.main-nav a{margin-left:14px; color:var(--muted); text-decoration:none; font-weight:700;}
.main-nav a:hover{color:var(--accent1)}

.hero{display:grid; grid-template-columns:1fr 340px; gap:28px; align-items:center; padding:36px 0;}
.hero-left h1{font-size:1.95rem; margin:0 0 8px; background:linear-gradient(90deg,var(--accent1),var(--accent2)); -webkit-background-clip:text; color:transparent;}
.hero-left p{color:var(--muted); margin:0 0 16px}
.thumb-form label{display:block; font-weight:700; margin-bottom:8px;}
.thumb-form input{width:100%; padding:14px 16px; border-radius:12px; border:1px solid rgba(14,165,233,0.12); margin-bottom:10px; font-size:1rem; outline:none}
.thumb-form input:focus{box-shadow:0 6px 18px rgba(14,165,233,0.12); border-color:var(--accent2)}
.form-actions{display:flex; gap:10px}
.btn{padding:10px 14px; border-radius:10px; border:0; cursor:pointer; font-weight:800; letter-spacing:0.3px}
.btn.primary{background:linear-gradient(90deg,var(--accent1),var(--accent2)); color:#fff; box-shadow:0 8px 24px rgba(109,40,217,0.12)}
.btn.alt{background:#f3f6fb; color:var(--text)}
.hint{color:var(--muted); font-size:0.9rem; margin-top:8px}

.hero-right{display:flex; align-items:center; justify-content:center}
.hero-image{max-width:100%; border-radius:14px; border:1px solid rgba(14,165,233,0.06); box-shadow:0 12px 40px rgba(14,165,233,0.06)}

.results{margin-top:30px}
.hidden{display:none}
.thumb-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:14px; margin-top:12px}
.thumb-card{background:var(--card); border:1px solid rgba(14,165,233,0.06); padding:12px; border-radius:10px; text-align:center; transition:transform .18s ease, box-shadow .18s ease}
.thumb-card:hover{transform:translateY(-6px); box-shadow:0 20px 40px rgba(13,110,253,0.06)}
.thumb-card img{max-width:100%; border-radius:8px; display:block; margin:0 auto 8px}
.thumb-card .meta{font-size:0.9rem; color:var(--muted); margin-bottom:8px}
.thumb-card a.download{display:inline-block; padding:8px 10px; border-radius:8px; text-decoration:none; background:linear-gradient(90deg,var(--accent1),var(--accent2)); color:#fff; font-weight:800}

.how-it-works, .more-tools{margin:28px 0; padding:18px; background:linear-gradient(180deg, rgba(109,40,217,0.04), rgba(14,165,233,0.02)); border-radius:12px}
.features{display:flex; gap:14px; margin-top:12px; flex-wrap:wrap}
.feature{flex:1; padding:12px; background:linear-gradient(180deg,#fff,#fbfdff); border-radius:10px; border:1px solid rgba(14,165,233,0.04)}
.feature h4{margin:0 0 6px}

.site-footer{border-top:1px solid rgba(14,165,233,0.04); margin-top:30px; padding:18px 0; background:#fff}
.footer-inner{display:flex; justify-content:space-between; gap:12px; align-items:center}
.footer-nav a{margin-left:10px; color:var(--muted); text-decoration:none; font-weight:700}

.content{padding:30px 0}
.about-card, .contact-card, .privacy-card{background:#fff; border:1px solid rgba(14,165,233,0.04); padding:22px; border-radius:12px}
.contact-card input, .contact-card textarea{width:100%; padding:12px 14px; margin:8px 0 14px; border-radius:10px; border:1px solid rgba(14,165,233,0.06); outline:none}
.contact-card input:focus, .contact-card textarea:focus{box-shadow:0 10px 30px rgba(14,165,233,0.06)}

.small{color:var(--muted); font-size:0.9rem}
.ad{margin:18px 0; text-align:center; padding:8px}

/* Responsive */
@media (max-width:880px){
  .hero{grid-template-columns:1fr; padding:22px 0}
  .hero-right{order:-1; margin-bottom:12px}
  .header-inner{flex-direction:column; align-items:flex-start}
  .footer-inner{flex-direction:column; gap:10px; align-items:flex-start}
}