/* =============================================================
   Compare JSON Online — stylesheet
   ============================================================= */

:root{
  --bg:#f6f7fb;
  --bg-alt:#ffffff;
  --bg-raised:#ffffff;
  --text:#171a23;
  --text-muted:#5a5f72;
  --border:#e3e5ee;
  --border-strong:#cdd0e0;

  --accent:#4d5bf9;
  --accent-dark:#3a45d1;
  --accent-contrast:#ffffff;

  --code-bg:#0f1220;
  --code-text:#e6e8f5;

  --added-bg:#e6f7ee;
  --added-fg:#0c7a43;
  --removed-bg:#fdecec;
  --removed-fg:#c22b2b;
  --changed-bg:#fff5e0;
  --changed-fg:#a86500;
  --unchanged-fg:#5a5f72;

  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:22px;
  --shadow-sm:0 1px 3px rgba(20,22,40,.06);
  --shadow-md:0 8px 30px rgba(20,22,40,.08);
  --font-display:'Outfit', sans-serif;
  --font-body:'Inter', sans-serif;
  --header-h:68px;
}

[data-theme="dark"]{
  --bg:#0d0f18;
  --bg-alt:#12141f;
  --bg-raised:#171a28;
  --text:#eceeff;
  --text-muted:#9a9fc0;
  --border:#262a3d;
  --border-strong:#333852;

  --accent:#7c86ff;
  --accent-dark:#6069f2;
  --accent-contrast:#0d0f18;

  --code-bg:#080a12;
  --code-text:#e6e8f5;

  --added-bg:rgba(24,163,101,.15);
  --added-fg:#3ddc8a;
  --removed-bg:rgba(226,64,64,.15);
  --removed-fg:#ff6b6b;
  --changed-bg:rgba(230,160,20,.15);
  --changed-fg:#ffc861;
  --unchanged-fg:#9a9fc0;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important; transition-duration:.001ms !important;}
}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  max-width:100vw;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{font-family:var(--font-display); line-height:1.15; margin:0 0 .5em; font-weight:700;}
p{margin:0 0 1em;color:var(--text-muted);}
ul{list-style:none;margin:0;padding:0;}
button{font-family:inherit;}

.skip-link{position:absolute;left:-999px;top:0;background:var(--accent);color:#fff;padding:.6em 1em;z-index:999;border-radius:0 0 8px 0;}
.skip-link:focus{left:0;}

.section-inner{max-width:1180px;margin:0 auto;padding:0 20px;}
.section-inner.narrow{max-width:820px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  padding:.75em 1.4em;border-radius:999px;border:1px solid transparent;
  font-weight:600;font-size:.95rem;cursor:pointer;transition:transform .15s ease, box-shadow .15s ease, background .15s ease, opacity .15s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn:focus-visible{outline:3px solid var(--accent);outline-offset:2px;}
.btn-primary{background:var(--accent);color:var(--accent-contrast);box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--accent-dark);}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--border-strong);}
.btn-ghost:hover{background:var(--bg-alt);}
.btn-outline{background:transparent;color:var(--accent);border-color:var(--accent);}
.btn-outline:hover{background:var(--accent);color:var(--accent-contrast);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-outline-light:hover{background:rgba(255,255,255,.15);}
.btn-danger{background:transparent;color:var(--removed-fg);border-color:var(--removed-fg);}
.btn-danger:hover{background:var(--removed-fg);color:#fff;}
.btn-lg{padding:.95em 1.9em;font-size:1.02rem;}
.btn-sm{padding:.5em 1em;font-size:.85rem;}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:color-mix(in srgb, var(--bg-alt) 88%, transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
  height:var(--header-h);
}
.header-inner{
  max-width:1280px;margin:0 auto;padding:0 20px;height:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.brand{display:flex;align-items:center;gap:.55em;font-family:var(--font-display);font-weight:700;font-size:1.1rem;flex-shrink:0;}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:9px;background:var(--accent);color:#fff;
  font-family:'JetBrains Mono', monospace;font-weight:700;font-size:.95rem;flex-shrink:0;
}
.main-nav{flex:1;display:flex;justify-content:center;}
.main-nav ul{display:flex;align-items:center;gap:4px;}
.main-nav a, .nav-drop-btn{
  display:inline-flex;align-items:center;gap:.3em;
  padding:.6em .9em;border-radius:999px;font-weight:500;font-size:.93rem;color:var(--text-muted);
  background:transparent;border:none;cursor:pointer;transition:background .15s, color .15s;
}
.main-nav a:hover, .nav-drop-btn:hover{background:var(--bg-alt);color:var(--text);}
.main-nav a.active{background:var(--accent);color:var(--accent-contrast);}
.chev{transition:transform .2s;}
.has-dropdown{position:relative;}
.has-dropdown.open .chev{transform:rotate(180deg);}
.dropdown-panel{
  position:absolute;top:100%;left:50%;transform:translateX(-50%);
  margin-top:8px;
  width:340px;max-height:min(60vh,460px);overflow:auto;
  background:var(--bg-raised);border:1px solid var(--border);border-radius:var(--radius-md);
  box-shadow:var(--shadow-md);
  display:grid;grid-template-columns:1fr 1fr;gap:2px;padding:10px;
  opacity:0;visibility:hidden;transform:translateX(-50%) translateY(6px);
  transition:opacity .15s ease, transform .15s ease, visibility .15s;
  z-index:70;
}
.has-dropdown.open .dropdown-panel{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0);}
.dropdown-panel a{padding:.55em .6em;font-size:.83rem;border-radius:8px;color:var(--text-muted);}
.dropdown-panel a:hover{background:var(--bg);color:var(--accent);}

.header-actions{display:flex;align-items:center;gap:8px;flex-shrink:0;}
.icon-btn{
  width:40px;height:40px;border-radius:999px;border:1px solid var(--border);background:var(--bg-alt);
  color:var(--text);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
}
.icon-btn:hover{border-color:var(--border-strong);}
.icon-moon{display:none;}
[data-theme="dark"] .icon-sun{display:none;}
[data-theme="dark"] .icon-moon{display:block;}

.nav-toggle{display:none;flex-direction:column;gap:4px;padding:0;}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;transition:transform .2s, opacity .2s;}
.nav-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.mobile-nav{
  display:none;flex-direction:column;
  position:fixed;top:var(--header-h);left:0;right:0;bottom:0;
  background:var(--bg-alt);z-index:59;overflow-y:auto;padding:10px 16px 30px;
  transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .18s ease, transform .18s ease;
}
.mobile-nav.open{opacity:1;transform:translateY(0);pointer-events:auto;}
.mobile-nav a, .mobile-drop-btn{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 10px;border-bottom:1px solid var(--border);font-weight:500;
  background:none;border-left:none;border-right:none;border-top:none;width:100%;text-align:left;color:var(--text);font-size:1rem;
}
.mobile-nav a.active{color:var(--accent);}
.mobile-drop-panel{display:none;flex-direction:column;padding-left:12px;background:var(--bg);border-radius:8px;margin:4px 0;}
.mobile-drop-panel.open{display:flex;}
.mobile-drop-panel a{border-bottom:1px dashed var(--border);font-size:.9rem;padding:12px 10px;}

/* ---------- Breadcrumb ---------- */
.breadcrumb-nav{max-width:1180px;margin:0 auto;padding:14px 20px 0;}
.breadcrumb-nav ol{display:flex;flex-wrap:wrap;gap:6px;font-size:.85rem;color:var(--text-muted);}
.breadcrumb-nav li:not(:last-child)::after{content:"/";margin-left:6px;color:var(--border-strong);}
.breadcrumb-nav a{color:var(--text-muted);}
.breadcrumb-nav a:hover{color:var(--accent);}
.breadcrumb-nav li[aria-current="page"]{color:var(--text);font-weight:600;}

/* ---------- Hero ---------- */
.hero{padding:56px 0 40px;}
.hero-inner{max-width:820px;margin:0 auto;padding:0 20px;text-align:center;}
.eyebrow{color:var(--accent);font-weight:700;font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;margin-bottom:.8em;}
.hero h1{font-size:clamp(2rem,5vw,3.1rem);letter-spacing:-.02em;}
.hero-sub{font-size:1.08rem;max-width:640px;margin:0 auto 1.6em;}
.hero-cta{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-bottom:2.4em;}
.hero-stats{display:flex;justify-content:center;gap:36px;flex-wrap:wrap;}
.hero-stats div{display:flex;flex-direction:column;align-items:center;}
.hero-stats strong{font-family:var(--font-display);font-size:1.5rem;color:var(--accent);}
.hero-stats span{font-size:.8rem;color:var(--text-muted);}

/* ---------- Tool section ---------- */
.tool-section{padding:24px 0 56px;}
.section-lead{max-width:640px;}
.toolbar{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  background:var(--bg-alt);border:1px solid var(--border);border-radius:var(--radius-md);
  padding:14px 16px;margin-bottom:18px;
}
.toolbar-group{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.toolbar-right{margin-left:auto;}
.opt{display:inline-flex;align-items:center;gap:.5em;font-size:.86rem;color:var(--text-muted);cursor:pointer;user-select:none;}
.opt input{width:16px;height:16px;accent-color:var(--accent);cursor:pointer;}

.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.json-panel{
  background:var(--bg-alt);border:1px solid var(--border);border-radius:var(--radius-md);
  padding:14px;display:flex;flex-direction:column;box-shadow:var(--shadow-sm);
  min-width:0;
}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px;flex-wrap:wrap;}
.panel-head label{font-weight:700;font-family:var(--font-display);}
.panel-tag{font-size:.7rem;font-weight:600;color:var(--text-muted);background:var(--bg);border:1px solid var(--border);padding:2px 8px;border-radius:999px;margin-left:6px;}
.panel-head-actions{display:flex;gap:6px;flex-wrap:wrap;}
.chip-btn{
  font-size:.78rem;padding:.4em .75em;border-radius:8px;border:1px solid var(--border-strong);
  background:var(--bg);color:var(--text-muted);cursor:pointer;
}
.chip-btn:hover{color:var(--accent);border-color:var(--accent);}
.file-btn{display:inline-flex;align-items:center;}

.dropzone{position:relative;border-radius:10px;}
.dropzone.dragover{outline:2px dashed var(--accent);outline-offset:3px;background:color-mix(in srgb, var(--accent) 8%, transparent);}
textarea{
  width:100%;min-height:260px;resize:vertical;
  background:var(--code-bg);color:var(--code-text);
  border:1px solid var(--border);border-radius:10px;
  padding:14px;font-family:'JetBrains Mono', ui-monospace, Menlo, Consolas, monospace;
  font-size:.86rem;line-height:1.55;tab-size:2;
}
textarea:focus-visible{outline:2px solid var(--accent);outline-offset:1px;}
.field-status{display:flex;align-items:center;gap:.5em;margin-top:8px;font-size:.8rem;color:var(--text-muted);}
.field-status .dot{width:8px;height:8px;border-radius:50%;background:var(--border-strong);flex-shrink:0;}
.field-status.valid .dot{background:var(--added-fg);}
.field-status.invalid .dot{background:var(--removed-fg);}
.field-status.empty .dot{background:var(--border-strong);}
.field-error{color:var(--removed-fg);font-size:.8rem;margin:6px 0 0;min-height:1em;}

.compare-actions{grid-column:1/-1;display:flex;gap:12px;justify-content:center;padding-top:6px;flex-wrap:wrap;}

/* ---------- Results ---------- */
.results-section{padding:10px 0 60px;}
.summary-bar{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:16px;}
.summary-card{
  flex:1 1 110px;background:var(--bg-alt);border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:12px 14px;text-align:center;
}
.summary-card strong{display:block;font-family:var(--font-display);font-size:1.5rem;}
.summary-card span{font-size:.75rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;}
.summary-card.added strong{color:var(--added-fg);}
.summary-card.removed strong{color:var(--removed-fg);}
.summary-card.changed strong{color:var(--changed-fg);}
.summary-card.unchanged strong{color:var(--unchanged-fg);}
.summary-status{
  flex:2 1 240px;background:var(--bg-alt);border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:12px 16px;font-weight:600;text-align:center;
}
.results-toolbar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:14px;}
.diff-legend{display:flex;flex-wrap:wrap;gap:16px;font-size:.8rem;color:var(--text-muted);margin-bottom:14px;}
.diff-legend span{display:inline-flex;align-items:center;gap:6px;}
.sw{width:12px;height:12px;border-radius:3px;display:inline-block;}
.sw-added{background:var(--added-fg);}
.sw-removed{background:var(--removed-fg);}
.sw-changed{background:var(--changed-fg);}
.sw-unchanged{background:var(--border-strong);}

.diff-tree{
  background:var(--code-bg);border:1px solid var(--border);border-radius:var(--radius-md);
  padding:16px;font-family:'JetBrains Mono', ui-monospace, Menlo, Consolas, monospace;font-size:.85rem;
  overflow-x:auto;color:var(--code-text);
}
.node{margin:0;}
.node-row{display:flex;align-items:flex-start;gap:6px;padding:2px 4px;border-radius:6px;flex-wrap:wrap;}
.node-row:hover{background:rgba(255,255,255,.04);}
.node-toggle{
  background:none;border:none;color:inherit;cursor:pointer;font-size:.8em;width:16px;flex-shrink:0;
  opacity:.6;padding:0;
}
.node-toggle:hover{opacity:1;}
.node-key{color:#9db4ff;flex-shrink:0;}
.node-children{margin-left:18px;border-left:1px dashed var(--border);padding-left:10px;}
.node-children.collapsed{display:none;}
.tag{font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.03em;padding:1px 6px;border-radius:5px;flex-shrink:0;}
.tag-added{background:var(--added-bg);color:var(--added-fg);}
.tag-removed{background:var(--removed-bg);color:var(--removed-fg);}
.tag-changed{background:var(--changed-bg);color:var(--changed-fg);}
.val{word-break:break-word;}
.val-old{color:var(--removed-fg);text-decoration:line-through;opacity:.85;}
.val-new{color:var(--added-fg);}
.val-unchanged{color:var(--code-text);opacity:.7;}
.empty-diff{padding:30px;text-align:center;color:var(--text-muted);}

/* ---------- More tools / grid ---------- */
.more-tools-section,.features-section,.how-section,.content-section,.faq-section{padding:56px 0;}
.more-tools-section{background:var(--bg-alt);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:10px;margin-top:20px;}
.tools-grid a{
  background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:12px 14px;font-size:.85rem;font-weight:500;
  color:var(--text-muted);transition:border-color .15s, color .15s, transform .15s;
}
.tools-grid a:hover{color:var(--accent);border-color:var(--accent);transform:translateY(-2px);}

/* ---------- Features ---------- */
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin-top:24px;}
.feature-card{background:var(--bg-alt);border:1px solid var(--border);border-radius:var(--radius-md);padding:22px;}
.feature-icon{font-size:1.6rem;margin-bottom:10px;}
.feature-card h3{font-size:1.02rem;margin-bottom:.4em;}
.feature-card p{font-size:.88rem;margin:0;}

/* ---------- How it works ---------- */
.how-section{background:var(--bg-alt);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.steps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin-top:24px;}
.step-card{position:relative;padding-top:6px;}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:11px;
  background:var(--accent);color:var(--accent-contrast);font-family:var(--font-display);font-weight:700;margin-bottom:12px;
}
.step-card h3{font-size:1rem;}
.step-card p{font-size:.88rem;}

/* ---------- Content ---------- */
.content-section h2{margin-bottom:.7em;}
.content-section p{font-size:.98rem;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:10px;margin-top:20px;}
.faq-item{
  background:var(--bg-alt);border:1px solid var(--border);border-radius:var(--radius-md);padding:16px 18px;
}
.faq-item summary{cursor:pointer;font-weight:600;font-family:var(--font-display);list-style:none;display:flex;justify-content:space-between;align-items:center;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-size:1.3rem;color:var(--accent);transition:transform .2s;}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item p{margin-top:12px;font-size:.92rem;}

/* ---------- CTA ---------- */
.cta-section{
  padding:64px 0;background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff;text-align:center;
}
.cta-inner h2{color:#fff;}
.cta-inner p{color:rgba(255,255,255,.85);max-width:560px;margin-left:auto;margin-right:auto;}
.cta-buttons{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:20px;}

/* ---------- Share bar ---------- */
.share-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:26px 20px;}
.share-bar span{font-size:.85rem;color:var(--text-muted);font-weight:600;}
.share-btn{
  width:36px;height:36px;border-radius:999px;border:1px solid var(--border);background:var(--bg-alt);
  display:inline-flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700;color:var(--text-muted);cursor:pointer;
}
.share-btn:hover{color:var(--accent);border-color:var(--accent);}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg-alt);border-top:1px solid var(--border);padding:48px 0 0;margin-top:20px;}
.footer-inner{max-width:1180px;margin:0 auto;padding:0 20px 32px;display:grid;grid-template-columns:1.6fr repeat(4,1fr);gap:24px;}
.footer-col h4{font-size:.85rem;text-transform:uppercase;letter-spacing:.04em;margin-bottom:12px;color:var(--text-muted);}
.footer-col a{display:block;padding:5px 0;font-size:.88rem;color:var(--text-muted);}
.footer-col a:hover{color:var(--accent);}
.footer-col.brand-col p{font-size:.85rem;margin-top:10px;}
.footer-bottom{border-top:1px solid var(--border);padding:18px 20px;text-align:center;font-size:.78rem;color:var(--text-muted);}
.footer-bottom .disclaimer{max-width:820px;margin:0 auto 10px;}

/* ---------- Cookie banner ---------- */
.cookie-banner{
  position:fixed;left:16px;right:16px;bottom:16px;z-index:80;
  background:var(--bg-raised);border:1px solid var(--border);border-radius:var(--radius-md);
  box-shadow:var(--shadow-md);padding:16px 18px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  max-width:640px;margin:0 auto;transform:translateY(140%);transition:transform .3s ease;
}
.cookie-banner.show{transform:translateY(0);}
.cookie-banner p{margin:0;font-size:.85rem;flex:1 1 260px;}
.cookie-banner a{color:var(--accent);text-decoration:underline;}

/* ---------- Toast ---------- */
.toast{
  position:fixed;left:50%;bottom:24px;transform:translate(-50%,20px);
  background:var(--text);color:var(--bg);padding:10px 18px;border-radius:999px;font-size:.85rem;font-weight:600;
  opacity:0;pointer-events:none;transition:opacity .2s ease, transform .2s ease;z-index:90;
}
.toast.show{opacity:1;transform:translate(-50%,0);}

/* ---------- Responsive ---------- */
@media (max-width:980px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .mobile-nav{display:flex;}
  .footer-inner{grid-template-columns:1fr 1fr;}
}
@media (max-width:760px){
  .compare-grid{grid-template-columns:1fr;}
  .hero-stats{gap:22px;}
  .footer-inner{grid-template-columns:1fr;}
}
@media (max-width:520px){
  .header-inner{padding:0 14px;}
  .brand-text{display:none;}
  .section-inner,.breadcrumb-nav{padding-left:14px;padding-right:14px;}
  .toolbar{flex-direction:column;align-items:stretch;}
  .toolbar-right{margin-left:0;}
  .dropdown-panel{width:min(90vw,340px);}
  .cookie-banner{left:10px;right:10px;bottom:10px;}
}