/* Layout: slim top bar, compact hero with search, filterable tool grid; tool pages = file canvas left, options rail right */
:root{
  --bg:#f5f6fa; --surface:#ffffff; --sunk:#eceef5; --ink:#161b2e; --muted:#5a6079; --line:#dfe2ec;
  --accent:#f0a11c; --accent-ink:#1b1608; --link:#3442c4;
  --c-organize:#4655d6; --c-optimize:#1f9d6b; --c-convert:#d98a0b; --c-edit:#c2417f; --c-security:#178a97;
  --danger:#c8352b; --ok:#1f8a5b;
  --f-display:"Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --f-body:"Instrument Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  --f-mono:"IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --shadow:0 1px 2px rgba(22,27,46,.06), 0 6px 20px rgba(22,27,46,.06);
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#0f1220; --surface:#171b2c; --sunk:#1e2337; --ink:#eef0f8; --muted:#9ba2bd; --line:#2a3048;
  --accent:#f5b23a; --accent-ink:#1b1608; --link:#9aa4ff;
  --c-organize:#8f9bff; --c-optimize:#4fcf98; --c-convert:#f3b448; --c-edit:#ee7fb3; --c-security:#4cc5d3;
  --danger:#ff7a6e; --ok:#58d39a; --shadow:0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.25); color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0f1220; --surface:#171b2c; --sunk:#1e2337; --ink:#eef0f8; --muted:#9ba2bd; --line:#2a3048;
  --accent:#f5b23a; --accent-ink:#1b1608; --link:#9aa4ff;
  --c-organize:#8f9bff; --c-optimize:#4fcf98; --c-convert:#f3b448; --c-edit:#ee7fb3; --c-security:#4cc5d3;
  --danger:#ff7a6e; --ok:#58d39a; --shadow:0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.25); color-scheme:dark}
*{box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:15px;line-height:1.55}
.wrap{max-width:1180px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
a{color:var(--link)}
button,input,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--link);outline-offset:2px}
h1,h2,h3{font-family:var(--f-display);text-wrap:balance;margin:0;letter-spacing:-.01em}

/* top bar */
.bar{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:10;background:var(--bg)}
.bar .wrap{display:flex;align-items:center;gap:20px;padding-block:12px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:var(--f-display);font-weight:800;font-size:22px}
.logo .mark{width:30px;height:34px;position:relative}
.logo .mark i{position:absolute;inset:0;border-radius:4px 10px 4px 4px;background:var(--accent)}
.logo .mark i:nth-child(1){transform:translate(-4px,3px) rotate(-8deg);background:var(--sunk);border:1px solid var(--line)}
.logo .mark i:nth-child(2){display:grid;place-items:center;font-size:13px;color:var(--accent-ink);font-style:normal}
.bar nav{display:flex;gap:4px;margin-left:auto;flex-wrap:wrap}
.bar nav a{text-decoration:none;color:var(--muted);font-weight:500;padding:6px 10px;border-radius:8px;font-size:14px}
.bar nav a:hover{color:var(--ink);background:var(--sunk)}
@media (max-width:640px){.bar nav{display:none}}

/* home */
.hero{padding-block:56px 28px;display:grid;gap:18px}
.hero h1{font-size:clamp(34px,6vw,60px);font-weight:800;line-height:1.02;max-width:15ch}
.hero h1 em{font-style:normal;background:linear-gradient(transparent 62%,color-mix(in srgb,var(--accent) 55%,transparent) 62%)}
.hero p{color:var(--muted);font-size:17px;max-width:58ch;margin:0}
.facts{display:flex;flex-wrap:wrap;gap:8px 22px;font-family:var(--f-mono);font-size:12.5px;color:var(--muted)}
.facts span::before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--ok);margin-right:8px;vertical-align:1px}
.controls{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;padding-block:8px 18px}
.tabs{display:flex;flex-wrap:wrap;gap:6px}
.tabs button{border:1px solid var(--line);background:var(--surface);padding:7px 14px;border-radius:999px;cursor:pointer;font-weight:500;font-size:14px;color:var(--muted)}
.tabs button[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.search{position:relative;flex:0 1 280px;min-width:0}
.search input{width:100%;padding:9px 14px 9px 36px;border-radius:10px;border:1px solid var(--line);background:var(--surface)}
.search svg{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px;padding-bottom:40px}
.tool{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;text-decoration:none;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px;transition:transform .15s,box-shadow .15s,border-color .15s}
.tool:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:color-mix(in srgb,var(--cc) 40%,var(--line))}
.tool .ic{grid-row:span 2;width:42px;height:42px;border-radius:10px;display:grid;place-items:center;color:var(--cc);background:color-mix(in srgb,var(--cc) 13%,transparent)}
.tool h3{font-size:17px;font-weight:600;align-self:end}
.tool p{margin:0;color:var(--muted);font-size:13.5px;line-height:1.45}
.empty{color:var(--muted);padding:30px 0}
.privacy{border-top:1px solid var(--line);padding-block:36px;display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:24px}
.privacy h2{font-size:16px;margin-bottom:6px}
.privacy p{margin:0;color:var(--muted);font-size:14px}
footer{border-top:1px solid var(--line);padding-block:22px;color:var(--muted);font-size:13px}
footer .wrap{display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between}

/* tool page */
.tp-head{padding-block:34px 18px;display:grid;gap:8px}
.back{font-size:14px;text-decoration:none;color:var(--muted);width:max-content}
.back:hover{color:var(--ink)}
.tp-head h1{font-size:clamp(28px,4.5vw,42px);font-weight:800;display:flex;align-items:center;gap:14px}
.tp-head h1 .ic{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;color:var(--cc);background:color-mix(in srgb,var(--cc) 14%,transparent);flex:none}
.tp-head p{color:var(--muted);margin:0;max-width:62ch}
.drop{border:2px dashed color-mix(in srgb,var(--cc) 45%,var(--line));background:var(--surface);border-radius:18px;padding:52px 20px;display:grid;place-items:center;gap:12px;text-align:center;transition:background .15s}
.drop.over{background:color-mix(in srgb,var(--cc) 8%,var(--surface))}
.drop small{color:var(--muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:11px;padding:12px 22px;font-weight:600;cursor:pointer;text-decoration:none;font-size:15px}
.btn-main{background:var(--accent);color:var(--accent-ink)}
.btn-main:hover{filter:brightness(1.05)}
.btn-big{padding:16px 34px;font-size:17px;border-radius:13px}
.btn-ghost{background:var(--sunk);color:var(--ink)}
.btn:disabled{opacity:.55;cursor:not-allowed}
.ws{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:18px;align-items:start;padding-bottom:40px}
@media (max-width:860px){.ws{grid-template-columns:minmax(0,1fr)}}
.canvas{background:var(--sunk);border-radius:16px;padding:16px;min-width:0}
.canvas-top{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:12px;font-size:13.5px;color:var(--muted)}
.rail{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px;display:grid;gap:16px;position:sticky;top:calc(env(safe-area-inset-top,0px) + 76px)}
@media (max-width:860px){.rail{position:static}}
.rail h2{font-size:18px}
.field{display:grid;gap:6px}
.field label,.lbl{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.field input[type=text],.field input[type=number],.field select{padding:9px 11px;border-radius:9px;border:1px solid var(--line);background:var(--bg);width:100%}
.field input[type=range]{width:100%;accent-color:var(--accent)}
.field input[type=color]{width:48px;height:34px;border:1px solid var(--line);border-radius:8px;background:none;padding:2px}
.seg{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;background:var(--sunk);border-radius:10px;padding:3px;gap:3px}
.seg label{text-align:center;padding:7px 4px;border-radius:8px;cursor:pointer;font-size:13.5px;font-weight:500;color:var(--muted);text-transform:none;letter-spacing:0}
.seg input{position:absolute;opacity:0;pointer-events:none}
.seg label:has(input:checked){background:var(--surface);color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.12)}
.seg label:has(input:focus-visible){outline:2px solid var(--link)}
.check{display:flex;gap:8px;align-items:center;font-size:14px}
.check input{accent-color:var(--accent);width:16px;height:16px}
.hint{font-size:12.5px;color:var(--muted);margin:0}
.posgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;width:132px;aspect-ratio:3/4;max-width:100%;background:var(--sunk);padding:6px;border-radius:8px;border:1px solid var(--line)}
.posgrid label{border-radius:5px;cursor:pointer;display:grid;place-items:center}
.posgrid label:has(input:checked)::after{content:"";width:60%;height:5px;border-radius:3px;background:var(--accent)}
.posgrid label:hover{background:var(--surface)}
.posgrid input{position:absolute;opacity:0}
.go{width:100%}

/* file list */
.flist{display:grid;gap:10px}
.fitem{display:grid;grid-template-columns:56px minmax(0,1fr) auto;gap:12px;align-items:center;background:var(--surface);border-radius:12px;padding:10px;border:1px solid var(--line)}
.fitem .th{width:56px;height:72px;background:var(--sunk);border-radius:6px;overflow:hidden;display:grid;place-items:center}
.fitem .th canvas,.fitem .th img{max-width:100%;max-height:100%;display:block}
.fitem .nm{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.fitem .meta{font-family:var(--f-mono);font-size:12px;color:var(--muted)}
.ibtns{display:flex;gap:4px}
.ib{width:32px;height:32px;border-radius:8px;border:1px solid var(--line);background:var(--bg);display:grid;place-items:center;cursor:pointer;color:var(--muted)}
.ib:hover{color:var(--ink)}
.ib.del:hover{color:var(--danger)}
.addmore{border:1.5px dashed var(--line);background:transparent;border-radius:12px;padding:12px;cursor:pointer;color:var(--muted);font-weight:500}
.addmore:hover{color:var(--ink);border-color:var(--muted)}

/* pages */
.pages{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:14px}
.pg{position:relative;background:var(--surface);border:2px solid transparent;border-radius:10px;padding:8px 8px 6px;display:grid;gap:6px;justify-items:center;cursor:pointer;user-select:none}
.pg .sheet{width:100%;aspect-ratio:3/4;display:grid;place-items:center;overflow:hidden}
.pg canvas{max-width:100%;max-height:100%;box-shadow:0 1px 3px rgba(0,0,0,.18);background:#fff;transition:transform .2s}
.pg .no{font-family:var(--f-mono);font-size:12px;color:var(--muted)}
.pg.sel{border-color:var(--cc)}
.pg.sel::after{content:"✓";position:absolute;top:6px;right:6px;width:22px;height:22px;border-radius:50%;background:var(--cc);color:#fff;display:grid;place-items:center;font-size:12px;font-weight:700}
.pg.cut{opacity:.38}
.pg.cut .sheet{background:repeating-linear-gradient(45deg,transparent 0 8px,color-mix(in srgb,var(--danger) 15%,transparent) 8px 10px)}
.pg .tools{display:flex;gap:3px}
.pg .tools .ib{width:26px;height:26px;border-radius:6px}
.pg.dragging{opacity:.4}
.pg.dropto{border-color:var(--accent)}
.single{display:grid;grid-template-columns:minmax(0,180px) minmax(0,1fr);gap:20px;align-items:center}
@media (max-width:520px){.single{grid-template-columns:minmax(0,1fr)}}
.single .sheet{background:var(--surface);border-radius:10px;padding:12px;display:grid;place-items:center}
.single canvas{max-width:100%;box-shadow:0 1px 4px rgba(0,0,0,.2);background:#fff}
.single dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:6px 16px;font-size:14px}
.single dt{color:var(--muted)}
.single dd{margin:0;font-family:var(--f-mono);font-size:13px;overflow-wrap:anywhere}

/* signature */
.sigpad{background:#fff;border:1px solid var(--line);border-radius:10px;width:100%;height:140px;touch-action:none;cursor:crosshair;display:block}
.sigrow{display:flex;justify-content:space-between;align-items:center}
.linkbtn{background:none;border:0;color:var(--link);cursor:pointer;padding:0;font-size:13px}

/* busy + result */
.progress{height:6px;border-radius:3px;background:var(--sunk);overflow:hidden}
.progress i{display:block;height:100%;width:0;background:var(--accent);transition:width .2s}
.busytxt{font-size:13px;color:var(--muted);font-family:var(--f-mono)}
.result{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:40px 22px;display:grid;justify-items:center;text-align:center;gap:14px;margin-bottom:40px}
.result .okic{width:58px;height:58px;border-radius:50%;background:color-mix(in srgb,var(--ok) 15%,transparent);color:var(--ok);display:grid;place-items:center}
.result h2{font-size:28px}
.result .fn{font-family:var(--f-mono);font-size:13.5px;color:var(--muted);overflow-wrap:anywhere}
.savings{display:flex;gap:16px;align-items:center;font-family:var(--f-mono);font-size:14px;flex-wrap:wrap;justify-content:center}
.savings b{font-size:20px;color:var(--ok)}
.next{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:10px}
.next a{font-size:13.5px;text-decoration:none;color:var(--ink);background:var(--sunk);padding:7px 12px;border-radius:999px}
.next a:hover{background:var(--line)}
.toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:11px 18px;border-radius:10px;font-size:14px;z-index:50;max-width:calc(100% - 32px);box-shadow:var(--shadow)}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

.seo{border-top:1px solid var(--line);padding-block:40px;display:grid;gap:28px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.seo h2{font-size:22px;margin-bottom:12px}
.seo ol{margin:0;padding-inline-start:22px;display:grid;gap:8px}
.seo details{border-bottom:1px solid var(--line);padding-block:12px}
.seo summary{cursor:pointer;font-weight:600}
.seo details p{margin:8px 0 0;color:var(--muted);max-width:65ch}
.seo .intro{grid-column:1/-1;color:var(--muted);max-width:75ch;margin:0}
.flinks{display:flex;flex-wrap:wrap;gap:6px 16px;width:100%;padding-bottom:10px;border-bottom:1px solid var(--line);margin-bottom:6px}
.flinks a{color:var(--muted);text-decoration:none;font-size:13px}
.flinks a:hover,.flinks a[aria-current]{color:var(--ink)}
.langsw{margin-inline-start:8px;padding:6px 8px;border-radius:8px;border:1px solid var(--line);background:var(--surface);font-size:13px;max-width:150px}
@media (max-width:640px){.bar .langsw{margin-inline-start:auto}}
[dir=rtl] .search svg{left:auto;right:11px}
[dir=rtl] .search input{padding:9px 36px 9px 14px}
[dir=rtl] .bar nav{margin-left:0;margin-right:auto}
[dir=rtl] .tp-head h1,[dir=rtl] .hero h1{letter-spacing:0}