:root{
  --bg:#07101d;--bg2:#0b1424;--surface:#101c2e;--surface2:#142238;--line:#243652;
  --text:#f7fbff;--muted:#9fb0c8;--blue:#5b7cff;--cyan:#39d7ff;--lime:#a9f65b;--violet:#9a7cff;
  --shadow:0 24px 80px rgba(0,0,0,.28);--radius:24px;--max:1240px;
}
html[data-theme="light"]{
  --bg:#f5f7fb;--bg2:#eef2f8;--surface:#fff;--surface2:#f8fbff;--line:#dbe4f0;
  --text:#0d1726;--muted:#5d6d82;--shadow:0 20px 60px rgba(25,45,80,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.55}
body:before{content:"";position:fixed;inset:0;pointer-events:none;background:
radial-gradient(900px 460px at 15% -10%,rgba(91,124,255,.20),transparent 65%),
radial-gradient(800px 500px at 95% 5%,rgba(57,215,255,.10),transparent 60%);z-index:-1}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit}
button{cursor:pointer}
img{max-width:100%}
.shell{width:min(var(--max),calc(100% - 40px));margin-inline:auto}
.shell.narrow{width:min(880px,calc(100% - 40px))}
.skip-link{position:absolute;left:-9999px;top:10px;background:#fff;color:#000;padding:10px;z-index:9999}
.skip-link:focus{left:10px}
.site-header{position:sticky;top:0;z-index:1000;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.nav-shell{width:min(var(--max),calc(100% - 40px));margin:auto;min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;min-width:max-content}
.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,var(--blue),var(--cyan));color:white;font-weight:900;font-size:22px;box-shadow:0 10px 30px rgba(91,124,255,.3)}
.brand strong{display:block;font-size:17px;line-height:1}
.brand small{display:block;margin-top:4px;color:var(--muted);font-size:12px}
.main-nav{display:flex;align-items:center;gap:8px}
.main-nav>a,.main-nav>button{border:1px solid transparent;background:transparent;color:var(--muted);padding:10px 13px;border-radius:999px;font-weight:750}
.main-nav>a:hover,.main-nav>button:hover{color:var(--text);border-color:var(--line);background:var(--surface)}
.main-nav .kofi-link{color:var(--text);border-color:var(--line)}
.nav-toggle{display:none;background:var(--surface);color:var(--text);border:1px solid var(--line);padding:10px 14px;border-radius:12px}
.hero{padding:92px 0 72px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:58px;align-items:center}
.eyebrow{display:inline-block;color:var(--cyan);font-size:12px;font-weight:900;letter-spacing:.18em;margin-bottom:14px}
.hero h1,.page-hero h1,.tool-hero h1{font-size:clamp(52px,7vw,96px);line-height:.95;letter-spacing:-.065em;margin:0}
.hero h1 span,.page-hero h1 span{background:linear-gradient(90deg,var(--blue),var(--cyan),var(--lime));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lede,.page-hero p,.tool-hero p{color:var(--muted);font-size:clamp(18px,2vw,22px);max-width:780px;margin:28px 0 0}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);background:var(--surface);color:var(--text);padding:12px 18px;border-radius:14px;font-weight:850;transition:.2s}
.btn:hover{transform:translateY(-1px);border-color:color-mix(in srgb,var(--blue),var(--line))}
.btn.primary{background:linear-gradient(135deg,var(--blue),#4666ff);border-color:transparent;color:white;box-shadow:0 12px 30px rgba(91,124,255,.28)}
.btn.xl{padding:15px 21px;border-radius:16px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:30px;color:var(--muted);font-size:14px;font-weight:700}
.smart-drop-card,.tool-workspace,.aside-card,.tool-card,.guide-card,.category-card{background:linear-gradient(180deg,color-mix(in srgb,var(--surface) 96%,white 4%),var(--surface));border:1px solid var(--line);box-shadow:var(--shadow)}
.smart-drop-card{padding:18px;border-radius:30px}
.smart-top,.workspace-topline{display:flex;align-items:center;gap:10px;padding:4px 4px 16px;color:var(--muted);font-size:13px}
.smart-top strong,.workspace-topline strong{color:var(--text)}
.pulse-dot,.status-dot{width:9px;height:9px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 6px rgba(169,246,91,.10)}
.privacy-chip{margin-left:auto;border:1px solid var(--line);border-radius:999px;padding:5px 9px}
.dropzone{display:flex;min-height:290px;align-items:center;justify-content:center;flex-direction:column;text-align:center;border:1.5px dashed color-mix(in srgb,var(--blue) 70%,var(--line));border-radius:24px;padding:28px;background:linear-gradient(180deg,rgba(91,124,255,.08),rgba(57,215,255,.025));transition:.2s}
.dropzone.dragover{border-color:var(--cyan);transform:translateY(-2px);background:rgba(57,215,255,.08)}
.drop-icon{font-size:40px;line-height:1;color:var(--cyan);margin-bottom:14px}
.dropzone strong{font-size:22px}
.dropzone small{color:var(--muted);margin-top:7px}
.fake-button{margin-top:18px;background:var(--text);color:var(--bg);padding:11px 15px;border-radius:12px;font-weight:900}
.smart-suggestions{display:flex;flex-wrap:wrap;gap:8px;padding:16px 4px 2px}
.smart-suggestions span,.smart-suggestions a{font-size:12px;font-weight:850;border:1px solid var(--line);padding:7px 10px;border-radius:999px;color:var(--muted)}
.section{padding:78px 0}
.section.alt{background:color-mix(in srgb,var(--bg2) 78%,transparent);border-block:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:28px}
.section-head h2,.split-feature h2,.prose>h2{margin:0;font-size:clamp(34px,4vw,56px);line-height:1;letter-spacing:-.045em}
.section-head>a{color:var(--cyan);font-weight:850}
.tool-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.tool-card{border-radius:20px;padding:20px;min-height:220px;display:flex;flex-direction:column;transition:.2s}
.tool-card:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--blue) 70%,var(--line))}
.tool-icon{display:grid;place-items:center;width:48px;height:48px;border-radius:15px;background:rgba(91,124,255,.12);border:1px solid rgba(91,124,255,.35);font-size:11px;font-weight:950;color:var(--cyan)}
.tool-card h2,.tool-card h3{font-size:21px;line-height:1.1;margin:22px 0 8px;letter-spacing:-.025em}
.tool-card p{color:var(--muted);margin:0;font-size:14px}
.card-arrow{margin-top:auto;padding-top:20px;font-size:13px;font-weight:900;color:var(--cyan)}
.split-feature{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:start}
.split-feature>div>p{color:var(--muted);font-size:18px}
.feature-stack{display:grid;gap:12px}
.feature-stack article{display:grid;grid-template-columns:58px 1fr;gap:14px;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:18px}
.feature-stack article>strong{font-size:28px;color:var(--blue)}
.feature-stack h3{margin:0;font-size:18px}.feature-stack p{color:var(--muted);margin:5px 0 0;font-size:14px}
.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.category-card{border-radius:24px;padding:28px;min-height:260px}
.category-card>span{font-size:12px;font-weight:950;letter-spacing:.12em}
.category-card h3{font-size:30px;margin:40px 0 8px;letter-spacing:-.035em}
.category-card p{color:var(--muted)}.category-card b{display:block;margin-top:24px}
.category-card.violet{background:linear-gradient(145deg,rgba(154,124,255,.16),var(--surface))}
.category-card.cyan{background:linear-gradient(145deg,rgba(57,215,255,.13),var(--surface))}
.category-card.lime{background:linear-gradient(145deg,rgba(169,246,91,.12),var(--surface))}
.guide-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.guide-card{padding:26px;border-radius:22px}
.guide-card>span{font-size:11px;font-weight:950;letter-spacing:.16em;color:var(--cyan)}
.guide-card h2,.guide-card h3{font-size:26px;letter-spacing:-.03em;margin:18px 0 10px}
.guide-card p{color:var(--muted)}.guide-card b{color:var(--cyan)}
.page-hero,.tool-hero{padding:78px 0 48px}
.page-hero.compact{padding-bottom:28px}
.page-hero h1,.tool-hero h1{font-size:clamp(48px,6vw,78px)}
.breadcrumbs{display:flex;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:13px;margin-bottom:24px}
.breadcrumbs a:hover{color:var(--cyan)}
.search-box{max-width:680px;display:flex;align-items:center;gap:10px;margin-top:30px;background:var(--surface);border:1px solid var(--line);border-radius:17px;padding:0 16px}
.search-box input{width:100%;padding:16px 0;background:transparent;border:0;outline:0;color:var(--text);font-size:16px}
.no-results{text-align:center;color:var(--muted);padding:40px}
.tool-workspace-section{padding:18px 0 64px}
.tool-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:20px;align-items:start}
.tool-workspace{border-radius:26px;padding:20px}
.tool-workspace .dropzone{min-height:260px}
.tool-aside{display:grid;gap:14px;position:sticky;top:94px}
.aside-card{border-radius:20px;padding:22px}
.aside-card h2{font-size:26px;line-height:1.05;margin:12px 0}.aside-card p{color:var(--muted);font-size:14px}
.mini-label{color:var(--cyan);font-size:10px;letter-spacing:.16em;font-weight:950}
.muted{color:var(--muted)}
.file-list{margin:16px 0;display:grid;gap:8px}
.file-item{display:flex;justify-content:space-between;gap:10px;background:var(--bg2);border:1px solid var(--line);border-radius:13px;padding:11px 13px;font-size:13px}
.file-item span:last-child{color:var(--muted)}
.tool-options{display:grid;gap:14px;margin:18px 0}
.field{display:grid;gap:8px}.field>span{font-size:13px;font-weight:800;color:var(--muted)}
.field input,.field select{width:100%;background:var(--bg2);border:1px solid var(--line);color:var(--text);border-radius:12px;padding:12px 13px}
.field input[type=range]{padding:0}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.process-button{width:100%;padding:15px;font-size:16px}
.tool-status{min-height:24px;margin-top:14px;color:var(--muted);font-size:14px}
.tool-status.error{color:#ff8d8d}.tool-status.success{color:var(--lime)}
.tool-result{margin-top:14px;background:var(--bg2);border:1px solid var(--line);border-radius:16px;padding:16px}
.result-row{display:flex;align-items:center;justify-content:space-between;gap:16px}
.result-meta{display:grid;gap:3px}.result-meta small{color:var(--muted)}
.preview-image{max-height:240px;border-radius:12px;display:block;margin:0 auto 14px}
.content-section{padding-top:60px}
.prose{font-size:17px}.prose p{color:var(--muted);line-height:1.8}.prose a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.prose section+section{margin-top:36px}
.steps{padding:0;list-style:none;display:grid;gap:12px}
.steps li{display:grid;grid-template-columns:42px 1fr;gap:12px;align-items:start;border:1px solid var(--line);background:var(--surface);padding:15px;border-radius:16px}
.steps li>span{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:rgba(91,124,255,.14);color:var(--cyan);font-weight:900}
.steps p{margin:3px 0!important}
.faq-list{display:grid;gap:10px}
.faq-list details{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:0 17px}
.faq-list summary{padding:16px 0;cursor:pointer;font-weight:850}.faq-list details p{margin-top:0}
.article-prose h2{font-size:34px;letter-spacing:-.03em;margin-bottom:10px}
.callout{margin-top:34px;padding:20px;border:1px solid rgba(57,215,255,.28);border-radius:18px;background:rgba(57,215,255,.06)}
.site-footer{border-top:1px solid var(--line);padding:58px 0 20px;background:var(--bg2)}
.footer-grid{width:min(var(--max),calc(100% - 40px));margin:auto;display:grid;grid-template-columns:2fr repeat(3,1fr);gap:34px}
.footer-grid h2{font-size:13px;letter-spacing:.12em;text-transform:uppercase}
.footer-grid>div>a:not(.brand){display:block;color:var(--muted);padding:5px 0;font-size:14px}
.footer-grid>div>p{color:var(--muted);max-width:420px;font-size:14px}
.footer-bottom{width:min(var(--max),calc(100% - 40px));margin:38px auto 0;border-top:1px solid var(--line);padding-top:18px;display:flex;justify-content:space-between;color:var(--muted);font-size:12px}

@media (max-width:1050px){
  .tool-grid{grid-template-columns:repeat(3,1fr)}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-copy{max-width:840px}
  .smart-drop-card{max-width:760px}
}
@media (max-width:820px){
  .nav-toggle{display:block}
  .main-nav{display:none;position:absolute;top:68px;left:20px;right:20px;flex-direction:column;align-items:stretch;background:var(--surface);border:1px solid var(--line);padding:10px;border-radius:18px;box-shadow:var(--shadow)}
  .main-nav.open{display:flex}
  .main-nav>a,.main-nav>button{text-align:left}
  .tool-grid{grid-template-columns:repeat(2,1fr)}
  .category-grid,.split-feature,.tool-layout,.footer-grid{grid-template-columns:1fr}
  .tool-aside{position:static}
  .guide-grid{grid-template-columns:1fr}
  .footer-grid{gap:20px}
  .hero{padding-top:62px}
}
@media (max-width:560px){
  .shell,.shell.narrow,.nav-shell,.footer-grid,.footer-bottom{width:min(100% - 24px,var(--max))}
  .site-header .brand small{display:none}
  .hero{padding:48px 0}
  .hero h1,.page-hero h1,.tool-hero h1{font-size:clamp(42px,14vw,64px)}
  .hero-lede,.page-hero p,.tool-hero p{font-size:17px}
  .tool-grid{grid-template-columns:1fr}
  .section{padding:54px 0}
  .section-head{align-items:flex-start;flex-direction:column}
  .dropzone{min-height:230px}
  .field-row{grid-template-columns:1fr}
  .result-row{align-items:flex-start;flex-direction:column}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* ===== PHASE 2 — BIG FILE TOOL ECOSYSTEM ===== */
.four-categories{grid-template-columns:repeat(4,minmax(0,1fr))}
.category-card.orange{background:linear-gradient(145deg,rgba(255,159,67,.14),var(--surface))}
.category-launch .category-card{min-height:320px;position:relative;overflow:hidden}
.category-launch .category-card:after{content:"";position:absolute;width:180px;height:180px;border-radius:50%;right:-80px;bottom:-90px;background:rgba(255,255,255,.035)}
.other-strip{margin-top:16px;display:flex;align-items:center;justify-content:space-between;gap:22px;padding:24px 26px;border:1px solid var(--line);background:var(--surface);border-radius:22px}
.other-strip h3{font-size:26px;margin:4px 0 2px;letter-spacing:-.03em}.other-strip p{margin:0;color:var(--muted)}
.quick-filter-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:24px}
.quick-filter-row a{border:1px solid var(--line);background:var(--surface);padding:9px 13px;border-radius:999px;color:var(--muted);font-weight:800;font-size:13px}.quick-filter-row a:hover{color:var(--text);border-color:var(--cyan)}
.text-input-wrap{display:grid;gap:12px}.text-input-wrap textarea,.result-text{width:100%;resize:vertical;background:var(--bg2);border:1px solid var(--line);color:var(--text);border-radius:16px;padding:15px 16px;font:500 14px/1.55 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;outline:0}.text-input-wrap textarea:focus,.result-text:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(91,124,255,.10)}
.mini-file-picker{display:inline-flex;width:max-content;padding:9px 12px;border:1px solid var(--line);border-radius:11px;background:var(--surface2);font-size:13px;font-weight:800;color:var(--muted);cursor:pointer}.mini-file-picker:hover{color:var(--text)}
.field input[type=color]{min-height:46px;padding:5px}.field output{font-size:12px;color:var(--cyan);font-weight:800}.field-grid-four{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.check-field{display:flex;align-items:center;gap:10px;min-height:46px;padding:11px 13px;border-radius:12px;background:var(--bg2);border:1px solid var(--line);font-size:13px;font-weight:800;color:var(--muted)}.check-field input{width:18px;height:18px}.advanced-options{border:1px solid var(--line);border-radius:14px;padding:0 14px;background:var(--bg2)}.advanced-options summary{padding:13px 0;cursor:pointer;font-weight:850}.advanced-options>div{padding:0 0 14px}
.warning-chip{padding:12px 14px;border-radius:13px;border:1px solid rgba(255,190,92,.30);background:rgba(255,190,92,.07);color:var(--muted);font-size:13px;line-height:1.55}
.result-text-head{display:flex;justify-content:space-between;gap:14px;align-items:center;margin-bottom:12px}.result-text-head>div{display:flex;gap:8px}.info-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin:14px 0 0}.info-grid>div{padding:12px;border:1px solid var(--line);background:var(--surface);border-radius:12px;min-width:0}.info-grid dt{font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:900}.info-grid dd{margin:5px 0 0;word-break:break-word;font:600 12px/1.45 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.extract-list{display:grid;gap:9px;margin-top:14px}.compact-row{padding:10px;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
.tool-workspace[data-mode="image-studio"],.tool-workspace[data-mode="pdf-studio"]{border-color:color-mix(in srgb,var(--cyan) 45%,var(--line));box-shadow:0 24px 90px rgba(57,215,255,.08)}
.tool-workspace[data-mode="media-convert"] .status-dot{background:#ff9f43;box-shadow:0 0 0 6px rgba(255,159,67,.10)}
.tool-icon{min-width:48px}
.tool-card .tool-icon:has(+h3),.tool-card .tool-icon:has(+h2){letter-spacing:.04em}

@media (max-width:1100px){.four-categories{grid-template-columns:repeat(2,1fr)}}
@media (max-width:820px){.other-strip{align-items:flex-start;flex-direction:column}.field-grid-four{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.four-categories{grid-template-columns:1fr}.category-launch .category-card{min-height:250px}.field-grid-four,.info-grid{grid-template-columns:1fr}.result-text-head{align-items:flex-start;flex-direction:column}.result-text-head>div{width:100%}.result-text-head .btn{flex:1}}


/* ===== PHASE 3 — SEARCH/REFERENCE/PWA POLISH ===== */
.tool-fact-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:18px 0 30px}
.tool-fact-grid article{border:1px solid var(--line);background:var(--surface);border-radius:16px;padding:16px}
.tool-fact-grid span{display:block;color:var(--cyan);font-size:11px;font-weight:900;letter-spacing:.12em;margin-bottom:7px}
.tool-fact-grid h3{font-size:17px;line-height:1.35;margin:0;letter-spacing:-.015em}
.use-case-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;list-style:none;padding:0;margin:14px 0 32px}
.use-case-list li{border:1px solid var(--line);background:var(--surface);border-radius:14px;padding:14px;color:var(--muted);font-weight:700}
@media (max-width:720px){.tool-fact-grid,.use-case-list{grid-template-columns:1fr}}