/*
Theme Name: ProToolHub USA
Theme URI: https://protoolhub.in/
Author: ProToolHub
Description: iLovePDF-inspired premium tools theme. Existing calculators stay active via ProToolHub Tools plugin.
Version: 3.2.1
Text Domain: protoolhub-usa
*/

:root {
  --pth-red: #e5322d;
  --pth-red-dark: #c42824;
  --pth-blue: #2563eb;
  --pth-text: #33333b;
  --pth-muted: #6b7280;
  --pth-border: #e8e8ef;
  --pth-bg: #ffffff;
  --pth-soft: #f7f7fb;
  --pth-card-shadow: 0 2px 12px rgba(40,40,60,.06);
  --pth-radius: 16px;
  --pth-font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --pth-max: 1180px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--pth-font);font-size:16px;line-height:1.55;color:var(--pth-text);background:#fff;-webkit-font-smoothing:antialiased}
a{color:var(--pth-blue);text-decoration:none}
a:hover{color:var(--pth-red)}
img{max-width:100%;height:auto}
h1,h2,h3{line-height:1.2;margin:0 0 .45em;color:var(--pth-text)}
p{margin:0 0 1em}
.pth-container{max-width:var(--pth-max);margin:0 auto;padding:0 20px}

/* Header — iLovePDF style */
.pth-header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid var(--pth-border)}
.pth-header-inner{display:flex;align-items:center;gap:20px;min-height:64px}
.pth-logo{display:flex;align-items:center;gap:8px;font-weight:800;font-size:1.35rem;color:var(--pth-text);white-space:nowrap}
.pth-logo .mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--pth-red),#ff6b66);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:800}
.pth-logo em{font-style:normal;color:var(--pth-red)}
.pth-nav{margin-left:12px;flex:1}
.pth-nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:2px;align-items:center}
.pth-nav a{display:block;padding:8px 12px;font-size:.875rem;font-weight:600;color:#4b5563;border-radius:8px;text-transform:uppercase;letter-spacing:.02em}
.pth-nav a:hover{background:var(--pth-soft);color:var(--pth-red)}
.pth-header-actions{margin-left:auto;display:flex;gap:8px;align-items:center}
.pth-btn-sm{padding:8px 14px;border-radius:8px;font-weight:700;font-size:.875rem;border:1px solid var(--pth-border);background:#fff;color:var(--pth-text);cursor:pointer}
.pth-btn-sm.primary{background:var(--pth-red);border-color:var(--pth-red);color:#fff}
.pth-btn-sm.primary:hover{background:var(--pth-red-dark);color:#fff}
.pth-menu-toggle{display:none;border:1px solid var(--pth-border);background:#fff;border-radius:8px;padding:8px 12px;cursor:pointer;font-weight:600}

/* Hero */
.pth-hero{text-align:center;padding:52px 0 28px;background:radial-gradient(ellipse 80% 60% at 50% -10%,#ffe8e6 0%,#fff 55%)}
.pth-hero h1{font-size:clamp(1.7rem,4vw,2.55rem);font-weight:800;letter-spacing:-.03em;max-width:720px;margin:0 auto 14px}
.pth-hero .sub{color:var(--pth-muted);font-size:1.05rem;max-width:620px;margin:0 auto 22px}
.pth-hero-search{max-width:520px;margin:0 auto;display:flex;border:1px solid var(--pth-border);border-radius:999px;overflow:hidden;background:#fff;box-shadow:var(--pth-card-shadow)}
.pth-hero-search input{flex:1;border:0;padding:14px 20px;font-size:1rem;outline:none}
.pth-hero-search button{border:0;background:var(--pth-red);color:#fff;padding:0 22px;font-weight:700;cursor:pointer}
.pth-filters{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin:22px 0 8px}
.pth-filter{padding:8px 16px;border-radius:999px;font-size:.875rem;font-weight:600;border:1px solid var(--pth-border);background:#fff;color:#4b5563;cursor:pointer}
.pth-filter:hover,.pth-filter.active{background:#33333b;color:#fff;border-color:#33333b}

/* Tool cards — iLovePDF style */
.pth-section{padding:28px 0 40px}
.pth-section-title{font-size:1.15rem;font-weight:800;margin:0 0 16px;display:flex;align-items:center;gap:10px}
.pth-tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:14px}
.pth-tool-card{background:#fff;border:1px solid var(--pth-border);border-radius:var(--pth-radius);padding:22px 16px 18px;text-align:center;box-shadow:var(--pth-card-shadow);transition:transform .15s,box-shadow .15s;display:flex;flex-direction:column;align-items:center;min-height:180px}
.pth-tool-card:hover{transform:translateY(-3px);box-shadow:0 8px 28px rgba(40,40,60,.1)}
.pth-tool-card .icon{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:12px;background:#f3f4f6}
.pth-tool-card .icon.pdf{background:#ffe8e6}
.pth-tool-card .icon.img{background:#e8f0fe}
.pth-tool-card .icon.calc{background:#e8f8ef}
.pth-tool-card .icon.ai{background:#f3e8ff}
.pth-tool-card .icon.conv{background:#fff4e5}
.pth-tool-card .icon.sec{background:#e8eef8}
.pth-tool-card .icon.dev{background:#eef2ff}
.pth-tool-card .icon.net{background:#e0f2fe}
.pth-tool-card h3{font-size:.95rem;font-weight:700;margin:0 0 6px}
.pth-tool-card h3 a{color:var(--pth-text)}
.pth-tool-card h3 a:hover{color:var(--pth-red)}
.pth-tool-card p{font-size:.78rem;color:var(--pth-muted);margin:0;line-height:1.4;flex:1}

/* Footer */
.pth-footer{background:#1f1f27;color:#9ca3af;padding:48px 0 24px;margin-top:24px}
.pth-footer a{color:#d1d5db}
.pth-footer a:hover{color:#fff}
.pth-footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:28px;margin-bottom:28px}
.pth-footer h4{color:#fff;font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;margin:0 0 12px}
.pth-footer ul{list-style:none;margin:0;padding:0}
.pth-footer li{margin-bottom:8px;font-size:.875rem}
.pth-footer-brand{font-size:1.25rem;font-weight:800;color:#fff;margin-bottom:8px}
.pth-footer-brand em{font-style:normal;color:#ff6b66}
.pth-footer-bottom{border-top:1px solid #33333b;padding-top:18px;font-size:.8rem;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between}

/* Content pages */
.pth-content{padding:28px 0 48px}
.pth-content .entry-title{font-size:1.75rem;font-weight:800}
.pth-breadcrumb{font-size:.85rem;color:var(--pth-muted);margin-bottom:12px}
.pth-ad-slot{margin:18px 0;display:flex;justify-content:center}

/* Drop zone for PDF/Image tools */
.pth-drop{border:2px dashed #d1d5db;border-radius:14px;padding:36px 20px;text-align:center;background:#fafafa;cursor:pointer;transition:border-color .15s,background .15s}
.pth-drop:hover,.pth-drop.drag{border-color:var(--pth-red);background:#fff5f5}
.pth-drop strong{display:block;margin-bottom:6px}
.pth-drop span{font-size:.875rem;color:var(--pth-muted)}
.pth-core-wrap{max-width:560px;margin:0 auto 24px;background:#fff;border:1px solid var(--pth-border);border-radius:16px;padding:24px;box-shadow:var(--pth-card-shadow)}
.pth-core-btn{display:inline-block;width:100%;padding:12px;background:var(--pth-red);color:#fff;border:none;border-radius:10px;font-weight:700;font-size:1rem;cursor:pointer;margin-top:8px}
.pth-core-btn:hover{background:var(--pth-red-dark)}
.pth-core-btn:disabled{opacity:.5;cursor:not-allowed}
.pth-core-row{margin-bottom:12px}
.pth-core-row label{display:block;font-size:.85rem;font-weight:600;margin-bottom:5px}
.pth-core-row input,.pth-core-row select,.pth-core-row textarea{width:100%;padding:10px 12px;border:1px solid #d1d5db;border-radius:8px;font:inherit}
.pth-core-result{margin-top:14px;padding:12px;background:var(--pth-soft);border-radius:10px;display:none}
.pth-file-list{text-align:left;margin:12px 0;font-size:.875rem}
.pth-file-list div{padding:6px 0;border-bottom:1px solid var(--pth-border)}

@media(max-width:900px){
  .pth-nav{display:none}
  .pth-nav.is-open{display:block;position:absolute;left:0;right:0;top:64px;background:#fff;border-bottom:1px solid var(--pth-border);padding:12px 16px}
  .pth-nav.is-open ul{flex-direction:column;align-items:stretch}
  .pth-menu-toggle{display:block}
  .pth-header-actions .pth-btn-sm:not(.primary){display:none}
  .pth-footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
  .pth-footer-grid{grid-template-columns:1fr}
  .pth-tools-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .pth-tool-card{min-height:150px;padding:16px 10px}
}

/* Tool page layout + AdSense-safe spacing */
.pth-tool-layout{display:grid;grid-template-columns:1fr;gap:28px;align-items:start}
.pth-tool-layout.has-sidebar{grid-template-columns:minmax(0,1fr) 300px}
.pth-tool-lead{color:var(--pth-muted);font-size:1.05rem;margin:0 0 16px}
.pth-tool-ui{margin-bottom:8px}
.pth-ad-slot{margin:20px 0;min-height:0;text-align:center}
.pth-ad-above-tool{margin-bottom:16px}
.pth-ad-below-tool{margin-top:20px}
.pth-tool-info{margin-top:32px;padding-top:24px;border-top:1px solid var(--pth-border)}
.pth-tool-info h2{font-size:1.15rem;margin:20px 0 10px}
.pth-steps{padding-left:1.2em;color:var(--pth-muted)}
.pth-steps li{margin-bottom:6px}
.pth-related{margin-top:36px}
.pth-related h2{font-size:1.2rem;margin-bottom:14px}
.pth-related-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
.pth-tool-faq{margin-top:28px;max-width:720px}
.pth-tool-sidebar{position:sticky;top:80px}

/* Mobile fixes */
@media(max-width:900px){
  .pth-tool-layout.has-sidebar{grid-template-columns:1fr}
  .pth-tool-sidebar{position:static}
  .pth-header-inner{flex-wrap:wrap;min-height:56px;padding:8px 0}
  .pth-logo{font-size:1.15rem}
  .pth-hero{padding:36px 0 20px}
  .pth-hero-search{border-radius:12px}
  .pth-hero-search input{padding:12px 14px;font-size:16px} /* prevent iOS zoom */
  .pth-filters{gap:6px;overflow-x:auto;flex-wrap:nowrap;justify-content:flex-start;padding-bottom:6px}
  .pth-filter{flex:0 0 auto}
}
@media(max-width:600px){
  .pth-tools-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .pth-tool-card{min-height:140px;padding:14px 10px}
  .pth-tool-card h3{font-size:.88rem}
  .pth-tool-card p{font-size:.72rem}
  .pth-content{padding:20px 0 36px}
  .pth-content .entry-title{font-size:1.4rem}
  .pth-btn-sm.primary{padding:8px 12px}
  input,select,textarea,button{font-size:16px} /* iOS */
}

/* ========== Blog listing (card grid) ========== */
.pth-blog-page .pth-blog-header{margin-bottom:1.75rem}
.pth-blog-page .pth-blog-header .entry-title{margin-bottom:.4rem}
.pth-blog-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
  margin-top:.5rem;
}
.pth-blog-card{
  background:#fff;
  border:1px solid var(--pth-border);
  border-radius:14px;
  overflow:hidden;
  box-shadow:var(--pth-card-shadow);
  transition:transform .18s ease,box-shadow .18s ease;
  margin:0;
  padding:0;
  text-align:left;
  min-height:0;
  display:block;
}
.pth-blog-card:hover{
  transform:translateY(-4px);
  box-shadow:0 12px 32px rgba(40,40,60,.12);
}
.pth-blog-card-link{
  display:flex;
  flex-direction:column;
  height:100%;
  color:inherit;
  text-decoration:none;
}
.pth-blog-card-media{
  position:relative;
  aspect-ratio:16/10;
  background:linear-gradient(145deg,#e8eef8,#f3f4f6);
  overflow:hidden;
}
.pth-blog-card-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
  transition:transform .25s ease;
}
.pth-blog-card:hover .pth-blog-card-media img{transform:scale(1.04)}
.pth-blog-card-media.is-placeholder{
  display:flex;
  align-items:center;
  justify-content:center;
}
.pth-blog-placeholder-icon{font-size:2.5rem;opacity:.55}
.pth-blog-card-body{
  padding:14px 16px 16px;
  display:flex;
  flex-direction:column;
  gap:8px;
  flex:1;
}
.pth-blog-card-title{
  font-size:1.02rem;
  font-weight:700;
  line-height:1.35;
  margin:0;
  color:var(--pth-text);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.pth-blog-card:hover .pth-blog-card-title{color:var(--pth-red)}
.pth-blog-card-meta{
  font-size:.8rem;
  color:var(--pth-muted);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
  margin-top:auto;
}
.pth-blog-author{font-weight:500;color:#4b5563}
.pth-blog-dot{opacity:.6}
.pth-blog-pagination{
  margin-top:2rem;
  display:flex;
  justify-content:center;
}
.pth-blog-pagination .nav-links{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.pth-blog-pagination .page-numbers{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:36px;
  height:36px;
  padding:0 10px;
  border:1px solid var(--pth-border);
  border-radius:8px;
  font-size:.9rem;
  font-weight:600;
  color:var(--pth-text);
  background:#fff;
  text-decoration:none;
}
.pth-blog-pagination .page-numbers.current,
.pth-blog-pagination .page-numbers:hover{
  background:var(--pth-red);
  border-color:var(--pth-red);
  color:#fff;
}
.pth-blog-empty{color:var(--pth-muted);padding:1rem 0}

@media(max-width:960px){
  .pth-blog-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
}
@media(max-width:600px){
  .pth-blog-grid{grid-template-columns:1fr;gap:14px}
  .pth-blog-card-title{font-size:.98rem;-webkit-line-clamp:2}
  .pth-blog-card-body{padding:12px 14px 14px}
}