:root{
  --ink:#1a2e2b;
  --paper:#f7f9f8;
  --panel:#ffffff;
  --line:#e5ebe9;
  --teal:#058F7A;
  --teal-d:#046B5A;
  --teal-soft:rgba(5,143,122,.08);
  --rust:#FF5A5A;
  --muted:#5a6e6a;
  --radius:12px;
  --radius-sm:8px;
  --shadow:0 2px 12px rgba(26,46,43,.06);
  --shadow-hover:0 8px 28px rgba(26,46,43,.1);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --ink:#e8f0ee; --paper:#0f1a18; --panel:#162422; --line:#2a3d39;
    --muted:#8aa09a; --teal-soft:rgba(5,143,122,.15);
    --shadow:0 2px 12px rgba(0,0,0,.3); --shadow-hover:0 8px 28px rgba(0,0,0,.4);
  }
}
:root[data-theme="dark"]{
  --ink:#e8f0ee; --paper:#0f1a18; --panel:#162422; --line:#2a3d39;
  --muted:#8aa09a; --teal-soft:rgba(5,143,122,.15);
  --shadow:0 2px 12px rgba(0,0,0,.3); --shadow-hover:0 8px 28px rgba(0,0,0,.4);
}
*{box-sizing:border-box;}
html{scroll-padding-top:env(safe-area-inset-top,0px);}
body{
  margin:0; background:var(--paper); color:var(--ink);
  font-family:'IBM Plex Sans',system-ui,sans-serif; -webkit-font-smoothing:antialiased;
  min-height:100vh; display:flex; flex-direction:column;
}
a{color:var(--teal); text-decoration:none;}
a:hover{text-decoration:underline;}

/* ---- Top bar ---- */
.topbar{
  background:var(--teal); color:#fff;
  padding:.85rem 1.5rem;
  display:flex; align-items:center; justify-content:space-between; gap:1rem;
  position:sticky; top:0; z-index:30;
  flex-shrink:0;
}
.topbar a.logo{
  color:#fff; text-decoration:none; font-family:'Source Serif 4',Georgia,serif;
  font-weight:700; font-size:1.35rem; letter-spacing:-.01em;
  display:flex; align-items:center; gap:.5rem;
}
.topbar a.logo:hover{text-decoration:none; opacity:.92;}
.topbar-actions{display:flex; align-items:center; gap:.6rem;}
.theme-btn{
  width:2.2rem; height:2.2rem; border-radius:50%;
  border:1px solid rgba(255,255,255,.35); background:rgba(255,255,255,.12);
  color:#fff; cursor:pointer; display:flex; align-items:center; justify-content:center;
  font-size:1rem; transition:background .15s;
}
.theme-btn:hover{background:rgba(255,255,255,.22);}
.theme-btn:focus-visible{outline:2px solid #fff; outline-offset:2px;}
.back-link{
  color:#fff; font-size:.88rem; font-weight:500; text-decoration:none;
  opacity:.9; display:flex; align-items:center; gap:.3rem;
}
.back-link:hover{opacity:1; text-decoration:none;}

/* ---- Home hero ---- */
.hero{
  max-width:1100px; margin:0 auto; padding:2.8rem 1.5rem 1.5rem; text-align:center;
}
.hero h1{
  font-family:'Source Serif 4',Georgia,serif; font-weight:700; font-size:clamp(1.9rem,4vw,2.6rem);
  margin:0 0 .5rem; color:var(--rust); letter-spacing:-.02em; line-height:1.2;
}
.hero p{
  margin:0 auto; color:var(--teal); font-size:1.05rem; max-width:48ch; line-height:1.55;
}

/* ---- Card grid ---- */
.cards{
  max-width:1100px; margin:0 auto; padding:1rem 1.5rem 3.5rem;
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(200px, 1fr));
  gap:1.1rem;
}
.card{
  background:var(--panel); border:1.5px solid var(--line); border-radius:var(--radius);
  padding:1.4rem 1.2rem 1.3rem; text-decoration:none; color:inherit;
  display:flex; flex-direction:column; gap:.55rem;
  transition:border-color .18s, box-shadow .18s, transform .15s;
  box-shadow:var(--shadow); min-height:160px;
}
.card:hover{
  border-color:var(--teal); box-shadow:var(--shadow-hover);
  transform:translateY(-2px); text-decoration:none; color:inherit;
}
.card:focus-visible{outline:2px solid var(--teal); outline-offset:2px;}
.card-icon{
  width:42px; height:42px; border-radius:10px;
  display:flex; align-items:center; justify-content:center;
  font-size:1.25rem; flex-shrink:0;
}
.card-icon.teal{background:var(--teal-soft); color:var(--teal);}
.card-icon.coral{background:rgba(255,90,90,.1); color:var(--rust);}
.card-icon.blue{background:rgba(59,130,246,.1); color:#3b82f6;}
.card-icon.purple{background:rgba(139,92,246,.1); color:#8b5cf6;}
.card-icon.amber{background:rgba(245,158,11,.12); color:#d97706;}
.card-icon.green{background:rgba(34,197,94,.1); color:#16a34a;}
.card h3{
  margin:0; font-size:1.02rem; font-weight:600; color:var(--ink);
  font-family:'IBM Plex Sans',system-ui,sans-serif;
}
.card p{
  margin:0; font-size:.82rem; color:var(--muted); line-height:1.45; flex:1;
}

/* ---- Tool page layout ---- */
.tool-wrap{
  max-width:720px; margin:0 auto; padding:1.8rem 1.5rem 4rem; flex:1; width:100%;
}
.tool-wrap h1{
  font-family:'Source Serif 4',Georgia,serif; font-weight:700; font-size:1.7rem;
  margin:0 0 .35rem; color:var(--ink);
}
.tool-wrap > .desc{
  color:var(--muted); font-size:.95rem; margin:0 0 1.4rem; line-height:1.5;
}

/* ---- Shared form UI ---- */
.drop{
  border:1.5px dashed var(--line); border-radius:var(--radius-sm); padding:1.7rem;
  text-align:center; cursor:pointer; background:var(--panel);
  transition:border-color .15s, background .15s;
}
.drop:hover, .drop.drag{
  border-color:var(--teal);
  background:color-mix(in srgb, var(--teal) 6%, var(--panel));
}
.drop input{display:none;}
.drop .label{font-weight:500; font-size:.95rem;}
.drop .sub{color:var(--muted); font-size:.82rem; margin-top:.25rem;}
ul.files{list-style:none; margin:1rem 0 0; padding:0; display:flex; flex-direction:column; gap:.4rem;}
ul.files li{
  display:flex; align-items:center; gap:.6rem; background:var(--panel);
  border:1px solid var(--line); border-radius:var(--radius-sm);
  padding:.55rem .75rem; font-size:.88rem;
}
ul.files li .name{flex:1; overflow:hidden; text-overflow:ellipsis; white-space:nowrap;}
ul.files li .size{color:var(--muted); font-size:.78rem; white-space:nowrap;}
ul.files li button{
  background:none; border:1px solid var(--line); border-radius:6px; color:var(--muted);
  cursor:pointer; font-size:.78rem; padding:.15rem .45rem; font-family:inherit;
}
ul.files li button:hover{color:var(--rust); border-color:var(--rust);}
ul.files li .order{display:flex; gap:.2rem;}
.field{margin-top:1rem;}
.field label{display:block; font-size:.85rem; font-weight:500; margin-bottom:.3rem;}
.field input[type=text], .field input[type=password], .field input[type=number], .field select, .field textarea{
  width:100%; padding:.6rem .7rem; border:1px solid var(--line); border-radius:var(--radius-sm);
  background:var(--panel); color:var(--ink); font-family:'IBM Plex Sans',sans-serif; font-size:.9rem;
}
.field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible{
  outline:2px solid var(--teal); outline-offset:1px;
}
.row{display:flex; gap:.8rem; flex-wrap:wrap;}
.row > .field{flex:1; min-width:120px;}
.actions{margin-top:1.4rem; display:flex; align-items:center; gap:.8rem; flex-wrap:wrap;}
button.primary{
  background:var(--teal); color:#fff; border:none; border-radius:999px;
  padding:.7rem 1.5rem; font-size:.92rem; font-weight:600; cursor:pointer;
  font-family:'IBM Plex Sans',sans-serif;
  box-shadow:0 2px 8px color-mix(in srgb, var(--teal) 25%, transparent);
  transition:background .15s, box-shadow .15s, transform .1s;
}
button.primary:hover{background:var(--teal-d); box-shadow:0 3px 12px color-mix(in srgb, var(--teal) 35%, transparent);}
button.primary:active{transform:translateY(1px);}
button.primary:disabled{opacity:.45; cursor:not-allowed; box-shadow:none;}
button.primary:focus-visible{outline:2px solid var(--teal); outline-offset:2px;}
button.ghost{
  background:none; border:1px solid var(--line); border-radius:999px;
  padding:.6rem 1.2rem; font-size:.88rem; color:var(--muted); cursor:pointer;
  font-family:inherit;
}
button.ghost:hover{border-color:var(--teal); color:var(--teal);}
.status{font-size:.85rem; color:var(--muted); min-height:1.2em;}
.status.err{color:var(--rust);}
.status.ok{color:var(--teal);}
.progress-wrap{
  display:none; margin-top:.8rem; height:6px; background:var(--line);
  border-radius:3px; overflow:hidden;
}
.progress-wrap.visible{display:block;}
.progress-bar{height:100%; width:0%; background:var(--teal); border-radius:3px; transition:width .2s ease;}
.warn{font-size:.82rem; color:var(--rust); margin-top:.5rem;}

/* ---- Thumbnails / redact ---- */
.thumb-grid{
  display:grid; grid-template-columns:repeat(auto-fill,minmax(108px,1fr)); gap:.7rem; margin-top:1rem;
}
.thumb{
  background:var(--panel); border:1px solid var(--line); border-radius:var(--radius-sm);
  padding:.4rem; text-align:center; cursor:grab; user-select:none;
  transition:opacity .15s, border-color .15s;
}
.thumb.dragover{border-color:var(--teal);}
.thumb.deleted{opacity:.35;}
.thumb canvas{max-width:100%; display:block; margin:0 auto .3rem; border:1px solid var(--line); background:#fff;}
.thumb .pnum{font-size:.75rem; color:var(--muted); margin-bottom:.3rem;}
.thumb .tbtns{display:flex; gap:.3rem; justify-content:center;}
.thumb .tbtns button{
  background:none; border:1px solid var(--line); border-radius:6px; color:var(--muted);
  cursor:pointer; font-size:.72rem; padding:.15rem .4rem; font-family:inherit;
}
.thumb .tbtns button:hover{color:var(--teal); border-color:var(--teal);}
.redact-wrap{position:relative; display:inline-block; margin-bottom:1.2rem; max-width:100%;}
.redact-wrap canvas{display:block; max-width:100%; height:auto; border:1px solid var(--line); cursor:crosshair;}
.redact-sel{position:absolute; border:1px solid var(--rust); background:rgba(255,90,90,.3); pointer-events:none;}
.redact-label{display:flex; align-items:center; justify-content:space-between; margin-bottom:.3rem;}
.redact-label span{font-size:.82rem; color:var(--muted);}
.redact-label button{
  background:none; border:1px solid var(--line); border-radius:6px; color:var(--muted);
  cursor:pointer; font-size:.76rem; padding:.15rem .5rem; font-family:inherit;
}

footer{
  text-align:center; color:var(--muted); font-size:.78rem;
  padding:1.2rem; background:var(--panel); border-top:1px solid var(--line); margin-top:auto;
}
::-webkit-scrollbar{height:6px; width:6px;}
::-webkit-scrollbar-thumb{background:var(--line); border-radius:3px;}

@media (max-width:520px){
  .cards{grid-template-columns:1fr 1fr; gap:.8rem;}
  .card{min-height:140px; padding:1.1rem .9rem;}
  .hero{padding:2rem 1.2rem 1rem;}
}

/* ---- Tool layout with sidebar ---- */
.layout{
  display:flex; flex:1; width:100%; min-height:0;
}
.sidebar{
  width:220px; flex-shrink:0;
  background:var(--panel); border-right:1px solid var(--line);
  padding:1rem 0 2rem;
  position:sticky; top:52px; align-self:flex-start;
  height:calc(100vh - 52px); overflow-y:auto;
}
.sidebar-title{
  font-size:.72rem; font-weight:600; text-transform:uppercase;
  letter-spacing:.06em; color:var(--muted);
  padding:.4rem 1.1rem .6rem;
}
.sidebar a{
  display:flex; align-items:center; gap:.55rem;
  padding:.55rem 1.1rem; font-size:.88rem; font-weight:500;
  color:var(--ink); text-decoration:none;
  border-left:3px solid transparent;
  transition:background .12s, color .12s, border-color .12s;
}
.sidebar a:hover{background:var(--teal-soft); color:var(--teal); text-decoration:none;}
.sidebar a.active{
  background:var(--teal-soft); color:var(--teal);
  border-left-color:var(--teal); font-weight:600;
}
.sidebar a .si{
  width:1.4rem; text-align:center; font-size:.95rem; flex-shrink:0; opacity:.85;
}
.layout > .tool-wrap{
  flex:1; min-width:0; width:100%;
  max-width:none; margin:0;
  padding:1.8rem 1.5rem 4rem;
  display:flex; flex-direction:column; align-items:center;
}
.layout > .tool-wrap > *{
  width:100%; max-width:680px;
}
.layout > .tool-wrap > .thumb-grid,
.layout > .tool-wrap > #redact-pages{
  max-width:900px;
}

/* Mobile drawer */
.sidebar-backdrop{
  display:none; position:fixed; inset:0; background:rgba(0,0,0,.35);
  z-index:40;
}
.sidebar-backdrop.open{display:block;}
.menu-btn{
  display:none;
  width:2.2rem; height:2.2rem; border-radius:8px;
  border:1px solid rgba(255,255,255,.35); background:rgba(255,255,255,.12);
  color:#fff; cursor:pointer; align-items:center; justify-content:center;
  font-size:1.15rem; padding:0;
}
.menu-btn:hover{background:rgba(255,255,255,.22);}

@media (max-width:860px){
  .menu-btn{display:flex;}
  .sidebar{
    position:fixed; left:0; top:0; bottom:0; z-index:50;
    height:100vh; width:min(280px, 85vw);
    transform:translateX(-105%);
    transition:transform .25s ease;
    box-shadow:4px 0 24px rgba(0,0,0,.15);
    padding-top:env(safe-area-inset-top, 0);
  }
  .sidebar.open{transform:translateX(0);}
  .sidebar-close{
    display:flex; align-items:center; justify-content:space-between;
    padding:.9rem 1.1rem; border-bottom:1px solid var(--line); margin-bottom:.4rem;
  }
  .sidebar-close span{font-weight:600; font-size:.95rem;}
  .sidebar-close button{
    background:none; border:none; font-size:1.3rem; cursor:pointer;
    color:var(--muted); padding:.2rem .4rem; line-height:1;
  }
  .layout > .tool-wrap{padding:1.4rem 1.2rem 3.5rem;}
}
@media (min-width:861px){
  .sidebar-close{display:none;}
}

/* SVG icons */
.svg-icon, .card-icon svg, .si.svg-icon svg{
  width:1.25rem; height:1.25rem; display:block;
}
.card-icon{
  width:44px; height:44px; border-radius:11px;
  display:flex; align-items:center; justify-content:center;
}
.card-icon svg{ width:22px; height:22px; }
.si.svg-icon{
  width:1.4rem; height:1.4rem; display:inline-flex;
  align-items:center; justify-content:center; opacity:.9;
}
.si.svg-icon svg{ width:1.05rem; height:1.05rem; }

/* Privacy strip */
.privacy-strip{
  max-width:1100px; margin:0 auto; padding:0 1.5rem 1.2rem;
  display:flex; flex-wrap:wrap; gap:.6rem 1.4rem; justify-content:center;
  font-size:.82rem; color:var(--muted);
}
.privacy-strip span{
  display:inline-flex; align-items:center; gap:.35rem;
}
.privacy-strip strong{ color:var(--teal); font-weight:600; }

/* Recent tools */
.recent-wrap{
  max-width:1100px; margin:0 auto; padding:0 1.5rem 0.4rem;
  display:none;
}
.recent-wrap.visible{ display:block; }
.recent-wrap h2{
  font-size:.78rem; font-weight:600; text-transform:uppercase;
  letter-spacing:.05em; color:var(--muted); margin:0 0 .7rem;
}
.recent-row{
  display:flex; flex-wrap:wrap; gap:.5rem; margin-bottom:.8rem;
}
.recent-chip{
  display:inline-flex; align-items:center; gap:.4rem;
  padding:.4rem .75rem; border-radius:999px;
  background:var(--panel); border:1px solid var(--line);
  color:var(--ink); text-decoration:none; font-size:.82rem; font-weight:500;
  transition:border-color .15s, color .15s;
}
.recent-chip:hover{ border-color:var(--teal); color:var(--teal); text-decoration:none; }
.recent-chip .svg-icon svg{ width:.95rem; height:.95rem; }

/* Cancel button */
button.cancel-btn{
  background:none; border:1px solid var(--line); border-radius:999px;
  padding:.65rem 1.2rem; font-size:.88rem; font-weight:500;
  color:var(--muted); cursor:pointer; font-family:inherit;
}
button.cancel-btn:hover{ border-color:var(--rust); color:var(--rust); }
button.cancel-btn[hidden]{ display:none; }

.size-result{
  margin-top:.8rem; font-size:.9rem; color:var(--muted);
  padding:.65rem .85rem; background:var(--panel); border:1px solid var(--line);
  border-radius:var(--radius-sm); display:none;
}
.size-result.visible{ display:block; }
.size-result strong{ color:var(--teal); }
.size-result .saved{ color:var(--teal); font-weight:600; }