:root{--ink:#0f172a;--ink-soft:#334155;--paper:#f8fafc;--raised:#fff;--line:#dbe4f0;--muted:#64748b;--accent:#2563eb;--accent-dark:#1d4ed8;--accent-soft:#eef4ff;--cyan:#06b6d4;--signal:#f59e0b;--danger:#dc2626;--radius:14px;--shadow:0 16px 42px rgba(37,99,235,.11)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}a{color:var(--accent-dark);text-decoration-thickness:.08em;text-underline-offset:.16em}a:hover{text-decoration-thickness:.14em}button,input,textarea,select{font:inherit}button,.button{border:1px solid var(--accent);background:var(--accent);color:#fff;padding:.78rem 1.15rem;border-radius:10px;font-weight:800;cursor:pointer;text-decoration:none;transition:background .18s,transform .18s,box-shadow .18s}button:hover,.button:hover{background:var(--accent-dark);box-shadow:0 9px 22px rgba(37,99,235,.26)}button.secondary{background:#fff;color:var(--accent-dark);border-color:#bfcef0}button.secondary:hover{background:var(--accent-soft)}button:disabled,.button[aria-disabled="true"]{cursor:not-allowed;opacity:.52;box-shadow:none}:focus-visible{outline:3px solid var(--signal);outline-offset:3px}.wrap{width:min(1180px,calc(100% - 2rem));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.nav{min-height:72px;display:flex;align-items:center;gap:1.4rem}.brand{font:900 1.3rem/1 'Space Grotesk',system-ui;color:var(--ink);text-decoration:none;display:flex;align-items:center;white-space:nowrap}.brand-mark{display:inline-grid;place-items:center;width:38px;height:38px;margin-right:.65rem;background:var(--accent);color:#fff;border-radius:10px;font-size:1.2rem}.nav-links{display:flex;gap:1.2rem;margin-left:auto;align-items:center;font-weight:700}.nav-links a{color:var(--ink-soft);text-decoration:none}.nav-links a:hover{color:var(--accent)}.search{width:min(280px,27vw);padding:.72rem .9rem;border:1px solid var(--line);border-radius:10px;background:#f4f6f7}.menu-button{display:none;padding:.52rem .8rem}
.hero{padding:5.2rem 0 3.5rem;text-align:center}.hero-copy{max-width:900px;margin:auto}.kicker{font:800 .78rem/1.2 'IBM Plex Mono',ui-monospace,monospace;color:var(--accent);letter-spacing:.1em;text-transform:uppercase}h1,h2,h3{font-family:'Space Grotesk',ui-sans-serif,system-ui;line-height:1.12}h1{font-size:clamp(2.8rem,6vw,5rem);letter-spacing:-.055em;margin:.7rem 0 1rem}h2{font-size:clamp(1.65rem,3vw,2.35rem);letter-spacing:-.035em;margin:0 0 1rem}.lead{font-size:1.18rem;color:var(--muted);max-width:65ch}.hero .lead{margin:0 auto 1.8rem;font-size:1.25rem}.hero-search{max-width:780px;margin:2rem auto 1.2rem;background:#fff;border:1px solid #d5dce1;border-radius:16px;padding:.55rem;display:flex;gap:.5rem;box-shadow:var(--shadow)}.hero-search input{flex:1;min-width:0;border:0;outline:0;background:transparent;padding:.8rem 1rem;font-size:1.08rem}.hero-search button{padding-inline:1.5rem}.trust-line{display:flex;justify-content:center;gap:1.4rem;flex-wrap:wrap;color:var(--muted);font-size:.9rem;margin-top:1rem}.trust-line span:before{content:"✓";color:var(--accent);font-weight:900;margin-right:.4rem}.category-pills,.filters{display:flex;gap:.55rem;flex-wrap:wrap;justify-content:center;margin:1.7rem 0}.category-pill,.filter{display:inline-flex;align-items:center;background:#fff;color:var(--ink);border:1px solid var(--line);border-radius:999px;padding:.58rem 1rem;font-weight:750;text-decoration:none}.category-pill:hover,.filter:hover{background:var(--accent-soft);border-color:#b7d4c5;text-decoration:none}.filter.active{background:var(--ink);border-color:var(--ink);color:#fff}
.section{padding:3.4rem 0}.section-soft{background:#fff;border-block:1px solid var(--line)}.section-head{display:flex;justify-content:space-between;align-items:end;gap:1rem;margin-bottom:1.2rem}.section-head p{margin:.3rem 0 0;color:var(--muted)}.section-head>a{font-weight:800;white-space:nowrap}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}.card{position:relative;display:block;background:var(--raised);border:1px solid var(--line);border-radius:var(--radius);padding:1.25rem;color:var(--ink);text-decoration:none;min-height:175px;transition:transform .18s,box-shadow .18s,border-color .18s}.card:hover{border-color:#b6c8be;transform:translateY(-4px);box-shadow:var(--shadow);text-decoration:none}.tool-icon{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:var(--accent-soft);color:var(--accent-dark);font:850 .72rem/1 'IBM Plex Mono',monospace;margin-bottom:1.2rem}.card h2,.card h3{margin:.45rem 0 .45rem;font-size:1.08rem;letter-spacing:-.01em}.card p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.5}.tag{font:750 .7rem/1.2 'IBM Plex Mono',monospace;color:var(--accent);text-transform:uppercase;letter-spacing:.05em}.home-category{padding:3rem 0}.home-category+.home-category{border-top:1px solid var(--line)}.home-close{max-width:850px;text-align:center;margin:auto;padding:4.5rem 0}.home-close .lead{margin:0 auto 1.5rem}
.directory-hero{text-align:center;padding:4.5rem 0 1.3rem}.directory-hero .lead{margin:.7rem auto}.directory-search{max-width:760px;margin:1.8rem auto .5rem;background:#fff;border:1px solid #d5dce1;border-radius:16px;padding:.5rem;box-shadow:var(--shadow)}.directory-search input{width:100%;border:0;outline:0;padding:.85rem 1rem;font-size:1.08rem;background:transparent}.directory-count{text-align:center;color:var(--muted);font-size:.9rem}.directory-tools{margin:1.3rem 0 4rem}
.breadcrumbs{font-size:.88rem;color:var(--muted);padding:1.1rem 0}.breadcrumbs a{color:var(--muted)}.tool-layout{display:grid;grid-template-columns:minmax(0,1fr) 275px;gap:2rem;align-items:start}.tool-main{min-width:0}.tool-intro{text-align:center;max-width:820px;margin:2rem auto 2.2rem}.tool-intro .lead{margin:.7rem auto 0}.tool-title{font-size:clamp(2.5rem,5vw,4.2rem);margin:.55rem 0;letter-spacing:-.05em}.tool-free{display:flex;justify-content:center;gap:1rem;flex-wrap:wrap;margin-top:1.15rem;color:var(--muted);font-size:.88rem}.tool-free span:before{content:"✓";color:var(--accent);font-weight:900;margin-right:.35rem}.tool-panel{position:relative;background:var(--raised);border:1px solid var(--line);border-radius:18px;padding:1.5rem;box-shadow:0 10px 32px rgba(28,40,55,.06)}.tool-main>.tool-panel{padding:clamp(1.25rem,3vw,2rem)}.action-first .tool-main>.tool-panel{border-top:5px solid var(--accent);box-shadow:var(--shadow)}.action-first .file-input{min-height:92px;padding:2rem 1rem;border:2px dashed #95b5a4;border-radius:14px;background:var(--accent-soft);text-align:center;font-weight:700;cursor:pointer}label{display:block;font-weight:750;margin:.8rem 0 .38rem}.field,textarea,select,input[type=number],input[type=date],input[type=text],input[type=url],input[type=password],input[type=color]{width:100%;border:1px solid #aebac2;background:#fff;padding:.78rem .82rem;border-radius:10px}textarea{min-height:180px;resize:vertical;font-family:'IBM Plex Mono',ui-monospace,monospace}.controls{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}.actions{display:flex;gap:.7rem;flex-wrap:wrap;margin-top:1.2rem}.result{margin-top:1.2rem;padding:1rem;border-left:4px solid var(--accent);border-radius:0 10px 10px 0;background:#eef7f2;white-space:pre-wrap;overflow:auto}.error{border-color:var(--danger);background:#faeeee;color:#7d2d1d}
.stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-top:1rem}.stat{padding:.85rem;border-right:1px solid var(--line);background:#fff}.stat:last-child{border:0}.stat strong{display:block;font:850 1.4rem/1.2 'Space Grotesk',system-ui}.stat span{font-size:.8rem;color:var(--muted)}.sidebar{position:sticky;top:95px;box-shadow:none}.sidebar h2{font-size:1.25rem}.link-list{list-style:none;padding:0;margin:0}.link-list li{border-bottom:1px solid var(--line)}.link-list li:last-child{border:0}.link-list a{display:block;padding:.72rem 0;font-weight:700;text-decoration:none}.link-list a:hover{color:var(--accent)}.content{max-width:800px}.tool-main .content{margin-top:1rem;padding:3rem 0}.content p,.content li{color:var(--ink-soft)}.content h2{margin-top:2rem}.content h2:first-child{margin-top:0}.content table{width:100%;border-collapse:collapse;margin:1rem 0;font-size:.92rem}.content th,.content td{border:1px solid var(--line);padding:.6rem .7rem;text-align:left;vertical-align:top}.content th{background:#f3f6f4;font-weight:800}.content ul{color:var(--ink-soft)}.faq{margin-top:2.5rem}.faq details{border-top:1px solid var(--line);padding:1rem 0}.faq summary{font-weight:800;cursor:pointer}.notice{background:#fff8e8;border:1px solid #efd29a;padding:.9rem 1rem;border-radius:10px}.hidden{display:none!important}.site-footer{background:#fff;border-top:1px solid var(--line);margin-top:4rem;padding:3rem 0}.footer-grid{display:grid;grid-template-columns:2fr repeat(2,1fr);gap:2.5rem}.footer-grid p{color:var(--muted)}
@media(max-width:980px){.grid{grid-template-columns:repeat(3,1fr)}.nav-links{gap:.8rem}.tool-layout{grid-template-columns:minmax(0,1fr) 240px}}
@media(max-width:820px){.grid{grid-template-columns:repeat(2,1fr)}.menu-button{display:block;margin-left:auto}.nav-links{display:none;width:100%;order:4;flex-direction:column;align-items:stretch;border-top:1px solid var(--line);padding:.7rem 0}.nav-links.open{display:flex}.nav-links a{display:block!important;padding:.3rem}.search{width:100%;order:5}.nav{flex-wrap:wrap;padding:.65rem 0}.tool-layout{grid-template-columns:1fr}.sidebar{position:static}.footer-grid{grid-template-columns:1fr}.controls{grid-template-columns:1fr}.hero{padding-top:4rem}}
@media(max-width:540px){.wrap{width:min(100% - 1.2rem,1180px)}.grid{grid-template-columns:1fr}.hero{padding:3.2rem 0 2rem}.hero-search{flex-direction:column}.hero-search button{width:100%}.category-pills,.filters{justify-content:flex-start;overflow-x:auto;flex-wrap:nowrap;padding-bottom:.4rem}.category-pill,.filter{white-space:nowrap}.section{padding:2.5rem 0}.section-head{align-items:start}.section-head p{display:none}.tool-intro{margin:1.2rem auto 1.5rem}.tool-title{font-size:2.5rem}.tool-panel{padding:1rem}.stats{grid-template-columns:repeat(2,1fr)}.stat:nth-child(2){border-right:0}.trust-line{gap:.6rem 1rem}.site-footer{margin-top:2rem}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* Cobalt, cyan, and amber interface system */
.hero{padding-inline:1rem;background:linear-gradient(135deg,#eef4ff 0%,#ecfeff 100%);border:1px solid #dbeafe;border-radius:0 0 30px 30px}
.card{--card-color:var(--accent);border-top:3px solid var(--card-color)}
.card:hover{border-color:var(--card-color);box-shadow:0 16px 38px color-mix(in srgb,var(--card-color) 18%,transparent)}
.card .tool-icon{background:color-mix(in srgb,var(--card-color) 12%,white);color:var(--card-color)}
.card[data-category="pdf"]{--card-color:#ef4444}.card[data-category="image"]{--card-color:#8b5cf6}.card[data-category="text"]{--card-color:#2563eb}.card[data-category="media"]{--card-color:#ec4899}.card[data-category="calculators"]{--card-color:#f59e0b}.card[data-category="developer"]{--card-color:#06b6d4}.card[data-category="generators"]{--card-color:#14b8a6}.card[data-category="productivity"]{--card-color:#6366f1}.card[data-category="seo"]{--card-color:#0ea5e9}
.result{background:#eef4ff}