/* ===== RESET & BASE ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#f7f8fc;--surface:#ffffff;--border:#e5e7eb;
  --text:#1a1a2e;--muted:#4b5563;--accent:#6366f1;
  --accent-hover:#4f46e5;--accent-light:#eef2ff;
  --success:#10b981;--danger:#ef4444;
  --warning:#f59e0b;--radius:16px;--radius-sm:10px;
  --gradient:linear-gradient(135deg,#6366f1 0%,#8b5cf6 50%,#a855f7 100%);
  --shadow-sm:0 1px 3px rgba(0,0,0,.06);
  --shadow:0 4px 20px rgba(0,0,0,.08);
  --shadow-lg:0 10px 40px rgba(0,0,0,.12);
}
html{font-size:15px;scroll-behavior:smooth;overscroll-behavior:none}
@font-face{font-family:'Inter-Fallback';src:local('Arial');ascent-override:90%;descent-override:22%;line-gap-override:0%;size-adjust:107%}
body{font-family:'Inter','Inter-Fallback',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh;display:flex;flex-direction:column}
a{color:var(--accent);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent-hover)}

/* ===== NAVBAR ===== */
.navbar{background:rgba(255,255,255,.9);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:0 2rem;display:flex;align-items:center;gap:1.5rem;flex-wrap:wrap;position:sticky;top:0;z-index:100;min-height:60px}
.navbar .logo{font-size:1.35rem;font-weight:800;color:var(--text);white-space:nowrap;padding:1rem 0;letter-spacing:-.03em;display:flex;align-items:center;gap:.5rem}
.navbar .logo span{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.nav-links{display:flex;gap:4px;flex-wrap:wrap;align-items:center;margin-left:.5rem}
.nav-links a{padding:.6rem 1rem;border-radius:var(--radius-sm);font-size:.875rem;font-weight:500;color:var(--muted);transition:all .2s ease;display:inline-flex;align-items:center;gap:.4rem}
.nav-links a .nav-icon{display:none}
.nav-links a:hover{background:var(--accent-light);color:var(--accent)}
.nav-links a.active{background:var(--gradient);color:#fff;box-shadow:0 2px 10px rgba(99,102,241,.3)}

/* ===== LAYOUT ===== */
.container{max-width:1200px;margin:0 auto;padding:2rem;flex:1;width:100%}
.tool-header{text-align:center;margin-bottom:2rem}
.tool-header h1{font-size:2rem;font-weight:800;margin-bottom:.5rem;letter-spacing:-.03em}
.tool-header p{color:var(--muted);max-width:600px;margin:0 auto;font-size:1rem}

/* ===== PANELS ===== */
.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;margin-bottom:1rem;transition:all .3s ease}
.panel:hover{box-shadow:var(--shadow);border-color:transparent;transform:translateY(-2px)}
body.dark .panel:hover,html.dark .panel:hover{box-shadow:0 4px 20px rgba(0,0,0,.25)}
.panel-header{display:flex;align-items:center;justify-content:space-between;padding:.65rem 1rem;background:linear-gradient(to right,#f8fafc,#f1f5f9);border-bottom:1px solid var(--border);font-size:.85rem;font-weight:600;color:var(--muted)}
.panel-body{padding:0}
.panel-body .CodeMirror{height:450px;font-size:.9rem}

/* ===== BUTTONS ===== */
.btn-row{display:flex;gap:.6rem;flex-wrap:wrap;margin:.85rem 0;padding:.85rem 0;position:sticky;top:60px;z-index:50;background:var(--bg);border-bottom:1px solid transparent;transition:border-color .2s}
.btn-row.stuck{border-color:var(--border);box-shadow:var(--shadow-sm)}
body.dark .btn-row.stuck,html.dark .btn-row.stuck{box-shadow:0 2px 8px rgba(0,0,0,.3)}
.btn{padding:.65rem 1.25rem;border:none;border-radius:var(--radius-sm);cursor:pointer;font-size:.875rem;font-weight:600;transition:all .2s ease;display:inline-flex;align-items:center;gap:.4rem}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--gradient);color:#fff;box-shadow:0 2px 10px rgba(99,102,241,.25)}
.btn-primary:hover{box-shadow:0 4px 16px rgba(99,102,241,.4);transform:translateY(-1px)}
.btn-success{background:linear-gradient(135deg,#10b981,#059669);color:#fff;box-shadow:0 2px 10px rgba(16,185,129,.25)}
.btn-success:hover{box-shadow:0 4px 16px rgba(16,185,129,.4)}
.btn-danger{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;box-shadow:0 2px 10px rgba(239,68,68,.25)}
.btn-danger:hover{box-shadow:0 4px 16px rgba(239,68,68,.4)}
.btn-outline{background:var(--surface);border:2px solid var(--border);color:var(--text)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-light)}

/* ===== STATUS BAR ===== */
.status{padding:.65rem 1rem;font-size:.875rem;border-radius:var(--radius-sm);margin:.6rem 0;display:none;font-weight:500}
.status.ok{display:block;background:linear-gradient(135deg,rgba(16,185,129,.1),rgba(5,150,105,.1));color:#047857;border:1px solid rgba(16,185,129,.2)}
.status.err{display:block;background:linear-gradient(135deg,rgba(239,68,68,.1),rgba(220,38,38,.1));color:#b91c1c;border:1px solid rgba(239,68,68,.2)}

/* ===== GRID LAYOUTS ===== */
.split{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.25rem}

/* ===== TABLE ===== */
.table-wrap{overflow-x:auto;margin:.85rem 0;border-radius:var(--radius-sm);border:1px solid var(--border)}
.table-wrap table{width:100%;border-collapse:collapse;font-size:.875rem}
.table-wrap th,.table-wrap td{padding:.6rem .85rem;border-bottom:1px solid var(--border);text-align:left}
.table-wrap th{background:linear-gradient(to right,#f8fafc,#f1f5f9);color:var(--muted);font-weight:600;position:sticky;top:0}
.table-wrap td{color:var(--text)}
.table-wrap tr:last-child td{border-bottom:none}

/* ===== DIFF HIGHLIGHTS ===== */
.diff-added{background:rgba(16,185,129,.15) !important}
.diff-removed{background:rgba(239,68,68,.15) !important}
.diff-changed{background:rgba(245,158,11,.15) !important}
.diff-legend{display:flex;gap:1.25rem;font-size:.8rem;color:var(--muted);margin:.6rem 0}
.diff-legend span{display:flex;align-items:center;gap:.35rem}
.diff-legend .swatch{width:16px;height:16px;border-radius:4px;display:inline-block}

/* ===== FAQ ===== */
.faq{margin-top:2.5rem}
.faq h2{font-size:1.35rem;margin-bottom:1rem;font-weight:700}
.faq details{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:.65rem;transition:all .2s}
.faq details:hover{box-shadow:var(--shadow-sm)}
.faq details[open]{box-shadow:var(--shadow-sm)}
.faq summary{padding:.85rem 1rem;cursor:pointer;font-weight:600;font-size:.95rem;list-style:none;display:flex;align-items:center;justify-content:space-between}
.faq summary::after{content:'＋';font-size:1.1rem;color:var(--accent);transition:transform .2s}
.faq details[open] summary::after{content:'－'}
.faq details[open] summary{border-bottom:1px solid var(--border)}
.faq p{padding:1rem;font-size:.95rem;color:var(--muted);line-height:1.7}

/* ===== EXAMPLE ===== */
.example-section{margin-top:2rem}
.example-section h2{font-size:1.2rem;margin-bottom:.65rem;font-weight:700}
.example-box{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:1rem;font-family:'Fira Code',monospace;font-size:.85rem;white-space:pre-wrap;overflow-x:auto;color:var(--muted);max-height:220px;overflow-y:auto}

/* ===== FOOTER ===== */
.site-footer{background:var(--surface);border-top:1px solid var(--border);margin-top:auto;padding:0}
.footer-grid{max-width:1200px;margin:0 auto;padding:3rem 2rem 2rem;display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:2.5rem}
.footer-col h3{font-size:.95rem;font-weight:700;color:var(--text);margin-bottom:1rem;display:flex;align-items:center;gap:.45rem}
.footer-col p{font-size:.85rem;color:var(--muted);line-height:1.7;margin-bottom:.6rem}
.footer-col a{display:block;font-size:.85rem;color:var(--muted);padding:.3rem 0;transition:all .2s ease}
.footer-col a:hover{color:var(--accent);transform:translateX(4px)}
.footer-brand .logo{font-size:1.35rem;font-weight:800;color:var(--text);display:inline-block;margin-bottom:.75rem}
.footer-brand .logo span{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.footer-social{display:flex;gap:.65rem;margin-top:1rem}
.footer-social a{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:var(--accent-light);color:var(--accent);font-size:1rem;transition:all .25s ease;padding:0}
.footer-social a:hover{background:var(--gradient);color:#fff;transform:translateY(-3px);box-shadow:0 4px 12px rgba(99,102,241,.35)}
.footer-bottom{max-width:1200px;margin:0 auto;padding:1rem 2rem;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:.6rem}
.footer-bottom p{font-size:.8rem;color:var(--muted)}
.footer-bottom a{font-size:.8rem;color:var(--muted)}
.footer-bottom a:hover{color:var(--accent)}
body.dark .site-footer,html.dark .site-footer{background:#0f1117}
@media(max-width:768px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:2rem}
}
@media(max-width:480px){
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
}

/* ===== FILE INPUT ===== */
.file-input-wrap{position:relative;display:inline-block}
.file-input-wrap input[type=file]{position:absolute;opacity:0;width:100%;height:100%;cursor:pointer;left:0;top:0}

/* ===== DARK MODE ===== */
html.dark,body.dark{--bg:#0a0b0f;--surface:#13151c;--border:#1e2028;--text:#e8eaed;--muted:#9ca3af;--accent-light:rgba(99,102,241,.15)}
html.dark body,body.dark{background:var(--bg);color:var(--text)}
body.dark .navbar,html.dark .navbar{background:rgba(19,21,28,.9);border-color:var(--border)}
body.dark .navbar::after,html.dark .navbar::after{display:none}
body.dark .panel,html.dark .panel{background:var(--surface);border-color:var(--border)}
body.dark .panel-header,html.dark .panel-header{background:rgba(0,0,0,.3);border-color:var(--border)}
body.dark .faq details,html.dark .faq details{background:var(--surface);border-color:var(--border)}
body.dark .example-box,html.dark .example-box{background:var(--surface);border-color:var(--border);color:#b0b4c3}
body.dark .table-wrap,html.dark .table-wrap{border-color:var(--border)}
body.dark .table-wrap th,html.dark .table-wrap th{background:rgba(0,0,0,.3)}
body.dark .footer-bottom,html.dark .footer-bottom{border-color:var(--border)}
body.dark .nav-more-menu,html.dark .nav-more-menu{box-shadow:0 8px 24px rgba(0,0,0,.5)}

/* ===== THEME TOGGLE ===== */
.theme-toggle{margin-left:auto;background:var(--surface);border:2px solid var(--border);color:var(--muted);padding:.5rem .85rem;border-radius:var(--radius-sm);cursor:pointer;font-size:.85rem;font-weight:600;transition:all .2s ease;white-space:nowrap}
.theme-toggle:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-light)}

/* ===== DRAG & DROP ZONE ===== */
.drop-zone{border:2px dashed var(--border);border-radius:var(--radius);padding:2rem;text-align:center;color:var(--muted);font-size:.9rem;transition:.25s;cursor:pointer;margin-bottom:1rem;background:linear-gradient(135deg,rgba(99,102,241,.02),rgba(139,92,246,.02))}
.drop-zone.dragover{border-color:var(--accent);background:var(--accent-light);color:var(--accent)}
.drop-zone input[type=file]{display:none}

/* ===== LOADING SPINNER ===== */
.loading{display:none;align-items:center;gap:.6rem;font-size:.875rem;color:var(--muted);margin:.6rem 0}
.loading.active{display:flex}
.spinner{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .6s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ===== JSON TREE VIEW ===== */
.tree{font-family:'Fira Code',monospace;font-size:.875rem;line-height:1.8;padding:1rem}
.tree ul{list-style:none;padding-left:1.35rem}
.tree li{position:relative}
.tree .toggle{cursor:pointer;user-select:none;display:inline-block;width:1.1rem;text-align:center;color:var(--accent);font-weight:700}
.tree .toggle:hover{color:var(--accent-hover)}
.tree .key{color:#d97706}
.tree .str{color:#059669}
.tree .num{color:#4f46e5}
.tree .bool{color:#dc2626}
.tree .null{color:var(--muted);font-style:italic}
.tree .highlight{background:rgba(245,158,11,.25);border-radius:4px;padding:0 3px}
.tree-search{display:flex;gap:.6rem;margin-bottom:1rem}
.tree-search input{flex:1;padding:.55rem .85rem;background:var(--surface);border:2px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:.875rem;outline:none;transition:all .2s}
.tree-search input:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(99,102,241,.1)}
.tree-search .count{font-size:.82rem;color:var(--muted);align-self:center;white-space:nowrap}

/* ===== MODE TABS ===== */
.mode-tabs{display:flex;gap:0;margin-bottom:1.5rem;border:2px solid var(--border);border-radius:var(--radius);overflow:hidden;max-width:480px;margin-left:auto;margin-right:auto;background:var(--surface)}
.mode-tab{flex:1;padding:.75rem 1.25rem;text-align:center;font-size:.95rem;font-weight:600;cursor:pointer;background:transparent;color:var(--muted);border:none;transition:.25s;border-right:1px solid var(--border)}
.mode-tab:last-child{border-right:none}
.mode-tab:hover{color:var(--text);background:var(--accent-light)}
.mode-tab.active{background:var(--gradient);color:#fff}
.mode-section{display:none}
.mode-section.active{display:block}

/* ===== NAV DROPDOWN ===== */
.nav-dropdown{position:relative;display:inline-flex;align-items:center}
.nav-dropdown-btn{padding:.6rem 1rem;border-radius:var(--radius-sm);font-size:.875rem;font-weight:500;color:var(--muted);background:transparent;border:none;cursor:pointer;transition:all .2s ease;font-family:inherit;display:inline-flex;align-items:center;gap:.4rem}
.nav-dropdown-btn .nav-icon{display:none}
.nav-dropdown-btn:hover{background:var(--accent-light);color:var(--accent)}
.nav-dropdown-btn.has-active{background:var(--gradient);color:#fff;box-shadow:0 2px 10px rgba(99,102,241,.3)}
.nav-dropdown-btn .chevron{font-size:.9rem;transition:transform .25s}
.nav-dropdown.open .chevron{transform:rotate(180deg)}
.nav-dropdown-menu{display:none;position:absolute;top:calc(100% + 8px);left:50%;transform:translateX(-50%);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);min-width:240px;z-index:200;box-shadow:var(--shadow-lg);padding:.6rem;animation:dropIn .2s ease}
@keyframes dropIn{from{opacity:0;transform:translateX(-50%) translateY(-8px)}to{opacity:1;transform:translateX(-50%) translateY(0)}}
.nav-dropdown.open .nav-dropdown-menu{display:block}
.nav-dropdown-menu a{display:flex;align-items:center;gap:.65rem;padding:.65rem .85rem;font-size:.875rem;color:var(--text);border-radius:var(--radius-sm);transition:all .2s ease;font-weight:500}
.nav-dropdown-menu a .nav-icon{font-size:1.1rem;width:1.5rem;text-align:center}
.nav-dropdown-menu a:hover{background:var(--accent-light);color:var(--accent);transform:translateX(3px)}
.nav-dropdown-menu a.active{background:var(--gradient);color:#fff}
body.dark .nav-dropdown-menu,html.dark .nav-dropdown-menu{box-shadow:0 10px 40px rgba(0,0,0,.5)}

/* Mobile menu */
.mobile-menu{display:none}
.mobile-menu-btn{padding:.6rem 1rem;border-radius:var(--radius);font-size:.95rem;color:var(--muted);background:var(--accent-light);border:2px solid transparent;cursor:pointer;transition:all .25s ease;display:inline-flex;align-items:center;gap:.4rem}
.mobile-menu-btn:hover{background:var(--gradient);color:#fff;box-shadow:0 4px 12px rgba(99,102,241,.3)}
.mobile-menu-panel{display:none;position:absolute;top:calc(100% + 8px);right:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);min-width:260px;z-index:200;box-shadow:var(--shadow-lg);padding:.6rem;animation:dropIn .2s ease}
.mobile-menu.open .mobile-menu-panel{display:block}
.mobile-menu-panel .menu-group-label{display:block;padding:.6rem .85rem .3rem;font-size:.72rem;font-weight:700;color:var(--accent);text-transform:uppercase;letter-spacing:.08em}
.mobile-menu-panel a{display:flex;align-items:center;gap:.65rem;padding:.65rem .85rem;font-size:.875rem;color:var(--text);border-radius:var(--radius-sm);transition:all .2s ease;font-weight:500}
.mobile-menu-panel a .nav-icon{font-size:1.1rem;width:1.5rem;text-align:center}
.mobile-menu-panel a:hover{background:var(--accent-light);color:var(--accent);transform:translateX(3px)}
.mobile-menu-panel a.active{background:var(--gradient);color:#fff}
.mobile-menu-panel .menu-divider{height:1px;background:var(--border);margin:.4rem .6rem}

/* ===== SPLIT VIEW (Formatter) ===== */
.split-view{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}
.split-view .panel{margin-bottom:0}
.split-view .panel-body .CodeMirror{height:500px}
.view-toggle{display:inline-flex;align-items:center;gap:.4rem;padding:.4rem .85rem;border-radius:var(--radius);font-size:.8rem;font-weight:600;cursor:pointer;background:var(--accent-light);border:2px solid transparent;color:var(--accent);transition:all .25s;margin-left:auto}
.view-toggle:hover{background:var(--gradient);color:#fff;border-color:transparent}
.view-toggle.active{background:var(--gradient);color:#fff}

/* ===== AUTO-FORMAT TOGGLE ===== */
.auto-format-toggle{display:inline-flex;align-items:center;gap:.5rem;font-size:.85rem;color:var(--muted);cursor:pointer;user-select:none}
.auto-format-toggle input{accent-color:var(--accent);width:16px;height:16px;cursor:pointer}

/* ===== LOAD SAMPLE BUTTON ===== */
.btn-ghost{background:transparent;border:2px dashed var(--border);color:var(--muted);padding:.5rem 1rem;border-radius:var(--radius-sm);cursor:pointer;font-size:.85rem;font-weight:600;transition:all .25s}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);border-style:solid;background:var(--accent-light)}

/* ===== EDITOR META ===== */
.editor-meta{display:flex;align-items:center;gap:.85rem;font-size:.78rem;color:var(--muted);padding:.35rem 1rem;border-top:1px solid var(--border);background:linear-gradient(to right,#f8fafc,#f1f5f9)}
body.dark .editor-meta,html.dark .editor-meta{background:rgba(0,0,0,.2)}

/* ===== HOMEPAGE HERO ===== */
.hero{text-align:center;padding:4rem 1.5rem 3rem;background:linear-gradient(180deg,rgba(99,102,241,.03) 0%,transparent 100%)}
.hero h1{font-size:2.75rem;font-weight:800;margin-bottom:.75rem;letter-spacing:-.04em;line-height:1.15}
.hero h1 span{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{color:var(--muted);max-width:560px;margin:0 auto 1rem;font-size:1.15rem;line-height:1.6}
.hero-badges{display:flex;justify-content:center;gap:.65rem;flex-wrap:wrap;margin-top:1rem}
.hero-badge{display:inline-flex;align-items:center;gap:.4rem;padding:.45rem .85rem;border-radius:var(--radius);font-size:.8rem;font-weight:600;background:var(--surface);border:1px solid var(--border);color:var(--muted);box-shadow:var(--shadow-sm)}
.hero-badge .badge-icon{font-size:.9rem}

/* Hero Quick Paste */
.hero-paste{max-width:720px;margin:2rem auto 0;position:relative}
.hero-paste textarea{width:100%;height:140px;padding:1rem 1.25rem;border:2px solid var(--border);border-radius:var(--radius);background:var(--surface);color:var(--text);font-family:'Fira Code',monospace;font-size:.9rem;resize:none;outline:none;transition:all .25s;box-shadow:var(--shadow-sm)}
.hero-paste textarea:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(99,102,241,.1),var(--shadow)}
.hero-paste-actions{display:flex;gap:.65rem;margin-top:.85rem;justify-content:center}

/* Homepage Tool Cards - iLoveIMG Style */
.section-title{font-size:1.5rem;font-weight:800;margin-top:3rem;margin-bottom:1.25rem;color:var(--text);letter-spacing:-.02em}
.tool-card{text-decoration:none;display:block;transition:all .3s ease;border-radius:var(--radius);overflow:hidden}
.tool-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:transparent}
body.dark .tool-card:hover,html.dark .tool-card:hover{box-shadow:0 8px 32px rgba(0,0,0,.3)}
.tool-card .panel-header{font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--accent);background:linear-gradient(135deg,var(--accent-light),rgba(139,92,246,.08))}
.tool-card .card-content{padding:1.5rem}
.tool-card .card-icon{font-size:2.25rem;margin-bottom:.85rem;display:block}
.tool-card .card-badge{display:inline-block;padding:.25rem .65rem;border-radius:var(--radius);font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;margin-bottom:.65rem}
.card-badge.popular{background:linear-gradient(135deg,rgba(99,102,241,.15),rgba(139,92,246,.15));color:#4f46e5}
.card-badge.new{background:linear-gradient(135deg,rgba(16,185,129,.15),rgba(5,150,105,.15));color:#047857}
.card-badge.hot{background:linear-gradient(135deg,rgba(239,68,68,.15),rgba(220,38,38,.15));color:#b91c1c}
.tool-card h2{font-size:1.15rem;font-weight:700;margin-bottom:.45rem;color:var(--text);letter-spacing:-.01em}
.tool-card p{color:var(--muted);font-size:.9rem;line-height:1.6;margin:0}

/* Category Filter Tabs */
.category-tabs{display:flex;gap:.5rem;flex-wrap:wrap;justify-content:center;margin:2rem 0 1.5rem;padding:0 1rem}
.category-tab{padding:.6rem 1.25rem;border-radius:var(--radius);font-size:.9rem;font-weight:600;cursor:pointer;background:var(--surface);border:2px solid var(--border);color:var(--muted);transition:all .25s}
.category-tab:hover{border-color:var(--accent);color:var(--accent)}
.category-tab.active{background:var(--gradient);color:#fff;border-color:transparent;box-shadow:0 4px 12px rgba(99,102,241,.3)}

/* Trust Badges */
.trust-section{display:flex;justify-content:center;gap:2rem;flex-wrap:wrap;margin:3rem 0;padding:2rem;background:var(--surface);border-radius:var(--radius);border:1px solid var(--border)}
.trust-badge{display:flex;align-items:center;gap:.65rem;color:var(--muted);font-size:.9rem;font-weight:500}
.trust-badge-icon{font-size:1.5rem}

/* ===== URL IMPORT ===== */
.url-import{display:flex;gap:.65rem;margin-bottom:1rem;align-items:center}
.url-import input{flex:1;padding:.65rem 1rem;border:2px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);color:var(--text);font-size:.9rem;outline:none;transition:all .25s}
.url-import input:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(99,102,241,.1)}
.url-import button{padding:.65rem 1.25rem;border:none;border-radius:var(--radius-sm);background:var(--gradient);color:#fff;font-size:.875rem;font-weight:600;cursor:pointer;white-space:nowrap;transition:all .25s;box-shadow:0 2px 10px rgba(99,102,241,.25)}
.url-import button:hover{box-shadow:0 4px 16px rgba(99,102,241,.4);transform:translateY(-1px)}
.url-import button:active{transform:scale(.97)}

/* ===== TOAST NOTIFICATION ===== */
.toast{position:fixed;bottom:1.75rem;right:1.75rem;padding:.75rem 1.25rem;border-radius:var(--radius-sm);font-size:.9rem;font-weight:600;z-index:9999;animation:toastIn .35s ease;box-shadow:var(--shadow-lg)}
.toast.ok{background:linear-gradient(135deg,#10b981,#059669);color:#fff}
.toast.err{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff}
@keyframes toastIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}

/* ===== EDITOR TOOLBAR ===== */
.editor-toolbar{display:flex;align-items:center;gap:.6rem;padding:.45rem 1rem;border-bottom:1px solid var(--border);background:linear-gradient(to right,#f8fafc,#f1f5f9);flex-wrap:wrap}
body.dark .editor-toolbar,html.dark .editor-toolbar{background:rgba(0,0,0,.25)}
.editor-toolbar .toolbar-group{display:inline-flex;align-items:center;gap:.35rem}
.toolbar-btn{padding:.3rem .6rem;border:2px solid var(--border);border-radius:8px;background:var(--surface);color:var(--muted);font-size:.75rem;font-weight:600;cursor:pointer;transition:all .2s;line-height:1}
.toolbar-btn:hover{border-color:var(--accent);color:var(--accent)}
.toolbar-btn.active{background:var(--gradient);color:#fff;border-color:transparent}
.toolbar-sep{width:1px;height:18px;background:var(--border);margin:0 .35rem}
.toolbar-label{font-size:.75rem;color:var(--muted);font-weight:600}

/* ===== FULLSCREEN MODE ===== */
.fullscreen-editor{position:fixed!important;top:0;left:0;right:0;bottom:0;z-index:9998;background:var(--bg);margin:0;border-radius:0;border:none;display:flex;flex-direction:column}
.fullscreen-editor .panel-header{border-radius:0}
.fullscreen-editor .panel-body .CodeMirror{height:calc(100vh - 90px)!important}
.fullscreen-editor .editor-toolbar{border-radius:0}
.fullscreen-editor .editor-meta{border-radius:0}

/* ===== HISTORY DROPDOWN ===== */
.history-dropdown{position:relative;display:inline-block}
.history-btn{padding:.5rem .85rem;border:2px dashed var(--border);border-radius:var(--radius-sm);background:transparent;color:var(--muted);font-size:.85rem;font-weight:600;cursor:pointer;transition:all .25s;display:inline-flex;align-items:center;gap:.35rem}
.history-btn:hover{border-color:var(--accent);color:var(--accent);border-style:solid}
.history-panel{display:none;position:absolute;top:calc(100% + 6px);left:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);min-width:300px;max-height:320px;overflow-y:auto;z-index:200;box-shadow:var(--shadow-lg);padding:.5rem;animation:dropIn .2s ease}
.history-dropdown.open .history-panel{display:block}
.history-item{display:flex;align-items:center;gap:.6rem;padding:.55rem .75rem;border-radius:var(--radius-sm);cursor:pointer;transition:all .2s;font-size:.85rem;color:var(--text)}
.history-item:hover{background:var(--accent-light);color:var(--accent)}
.history-item .history-preview{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-family:'Fira Code',monospace;font-size:.75rem;color:var(--muted)}
.history-item .history-time{font-size:.72rem;color:var(--muted);white-space:nowrap}
.history-empty{padding:1rem;text-align:center;font-size:.85rem;color:var(--muted)}

/* ===== KEYBOARD SHORTCUT HINTS ===== */
.kbd-hint{display:none;margin-left:.4rem;padding:.15rem .45rem;border-radius:6px;font-size:.68rem;font-weight:600;background:rgba(0,0,0,.06);color:var(--muted);font-family:monospace}
@media(min-width:769px){
  .kbd-hint{display:inline-block}
}
body.dark .kbd-hint,html.dark .kbd-hint{background:rgba(255,255,255,.1)}

/* ===== SHARE BUTTON ===== */
.share-modal{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.6);backdrop-filter:blur(4px);z-index:9999;display:flex;align-items:center;justify-content:center;animation:fadeIn .25s ease}
.share-modal-content{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.75rem;max-width:520px;width:90%;box-shadow:var(--shadow-lg)}
.share-modal-content h3{margin-bottom:1rem;font-size:1.1rem;font-weight:700}
.share-modal-content input{width:100%;padding:.65rem 1rem;border:2px solid var(--border);border-radius:var(--radius-sm);background:var(--bg);color:var(--text);font-size:.875rem;font-family:monospace;margin-bottom:1rem}
.share-modal-content .share-actions{display:flex;gap:.65rem;justify-content:flex-end}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}

/* ===== COOKIE CONSENT BANNER ===== */
.cookie-banner{position:fixed;bottom:0;left:0;right:0;background:var(--surface);border-top:1px solid var(--border);padding:1.25rem 2rem;display:flex;align-items:center;justify-content:space-between;gap:1.25rem;z-index:9998;box-shadow:0 -4px 20px rgba(0,0,0,.1);animation:slideUp .35s ease;flex-wrap:wrap}
.cookie-banner p{font-size:.9rem;color:var(--muted);flex:1;min-width:200px}
.cookie-banner a{color:var(--accent);font-weight:600}
.cookie-actions{display:flex;gap:.65rem}
@keyframes slideUp{from{transform:translateY(100%)}to{transform:translateY(0)}}
body.dark .cookie-banner,html.dark .cookie-banner{background:var(--surface);border-color:var(--border)}

/* ===== ACCESSIBILITY ===== */
.skip-link{position:absolute;top:-100px;left:0;background:var(--gradient);color:#fff;padding:.6rem 1.25rem;z-index:9999;font-size:.9rem;font-weight:600;border-radius:0 0 var(--radius-sm) 0;transition:top .25s}
.skip-link:focus{top:0}

:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.btn:focus-visible,.toolbar-btn:focus-visible,.theme-toggle:focus-visible,.nav-dropdown-btn:focus-visible,.mobile-menu-btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px;box-shadow:0 0 0 5px rgba(99,102,241,.2)}
.nav-links a:focus-visible,.nav-dropdown-menu a:focus-visible,.mobile-menu-panel a:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

.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}

.toast-region{position:fixed;bottom:1.75rem;right:1.75rem;z-index:9999;pointer-events:none}
.toast-region .toast{pointer-events:auto}

.noscript-msg{text-align:center;padding:4rem 2rem;max-width:640px;margin:0 auto}
.noscript-msg h1{font-size:1.75rem;margin-bottom:1.25rem;color:var(--text)}
.noscript-msg p{color:var(--muted);font-size:1.05rem;line-height:1.75}

/* ===== RESPONSIVE ===== */
@media(max-width:768px){
  .split{grid-template-columns:1fr}
  .tools-grid{grid-template-columns:1fr}
  .split-view{grid-template-columns:1fr}
  .split-view .panel-body .CodeMirror{height:280px}
  .navbar{gap:1rem;padding:0 1.25rem}
  .nav-links{display:none}
  .mobile-menu{display:inline-block;position:relative}
  .panel-body .CodeMirror{height:280px}
  .tool-header h1{font-size:1.5rem}
  .hero h1{font-size:2rem}
  .hero p{font-size:1rem}
  .hero-badges{gap:.5rem}
  .btn-row{top:56px}
  .url-import{flex-direction:column}
  .url-import button{width:100%}
  .container{padding:1.25rem}
  .section-title{font-size:1.25rem}
}