/* Sheaf — design tokens and components. Fingerprint: estate_design_registry "sheaf.olijammedia.co.uk"
   (manila desk, off-white sheets, carbon-copy cobalt ink, rubber-stamp red only for the stamp). */
:root {
  --desk: #EAD9B0;
  --desk-deep: #DCC690;
  --desk-line: #C9B27A;
  --sheet: #FFFDF7;
  --sheet-edge: #E8DFC8;
  --ink: #23211C;
  --ink-soft: #5E5747;
  --cobalt: #1E3A9E;
  --cobalt-deep: #152B78;
  --cobalt-wash: #E6EAF7;
  --stamp: #C2362B;
  --ok: #2F6B3A;
  --display: "Gloock", Georgia, serif;
  --body: "Atkinson Hyperlegible", system-ui, -apple-system, "Segoe UI", sans-serif;
  --r: 6px;
  --shadow: 0 1px 0 rgba(60, 45, 10, .08), 0 8px 24px -10px rgba(60, 45, 10, .35);
  --spring: cubic-bezier(.34, 1.56, .64, 1);
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--desk); color: var(--ink);
  font: 17px/1.55 var(--body); font-variant-numeric: tabular-nums;
  background-image: radial-gradient(rgba(120, 90, 30, .07) 1px, transparent 1px);
  background-size: 4px 4px;
}
a { color: var(--cobalt); text-underline-offset: 3px; }
a:hover { color: var(--cobalt-deep); }
h1, h2, h3 { font-family: var(--display); font-weight: 400; line-height: 1.08; letter-spacing: -.01em; margin: 0 0 .4em; }
h1 { font-size: clamp(2.6rem, 7vw, 4.6rem); }
h2 { font-size: clamp(1.8rem, 4.2vw, 2.6rem); }
h3 { font-size: 1.45rem; }
p { margin: 0 0 1em; }
:focus-visible { outline: 3px solid var(--cobalt); outline-offset: 2px; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; background: var(--sheet); padding: 8px 12px; z-index: 50; }

/* header */
.top { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 0; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand img { width: 34px; height: 34px; }
.brand span { font: 1.7rem/1 var(--display); }
.top nav { display: flex; gap: 18px; align-items: center; }
.top nav a { text-decoration: none; color: var(--ink); font-weight: 700; font-size: .95rem; }
.top nav a.btn { color: #fff; }
@media (max-width: 640px) { .top nav a:not(.btn) { display: none; } }

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 22px; border-radius: var(--r); border: 2px solid var(--cobalt);
  background: var(--cobalt); color: #fff; font: 700 1rem/1 var(--body); text-decoration: none; cursor: pointer;
  box-shadow: 0 3px 0 var(--cobalt-deep); transition: transform .15s var(--spring), box-shadow .15s;
}
.btn:hover { color: #fff; transform: translateY(-1px); box-shadow: 0 4px 0 var(--cobalt-deep); }
.btn:active { transform: translateY(2px); box-shadow: 0 1px 0 var(--cobalt-deep); }
.btn.ghost { background: var(--sheet); color: var(--cobalt); box-shadow: 0 3px 0 var(--desk-line); }
.btn.ghost:hover { color: var(--cobalt-deep); }
.btn.small { min-height: 40px; padding: 0 14px; font-size: .92rem; }
.btn.danger { border-color: var(--stamp); background: var(--sheet); color: var(--stamp); box-shadow: 0 3px 0 var(--desk-line); }
.btn[disabled] { opacity: .45; cursor: not-allowed; transform: none; }

/* hero: the paper stack */
.hero { display: grid; grid-template-columns: 1.05fr 1fr; gap: 40px; align-items: center; padding: 30px 0 70px; }
.hero .lede { font-size: 1.2rem; color: var(--ink-soft); max-width: 34ch; }
.hero .ctas { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 14px; }
.hero .fine { font-size: .92rem; color: var(--ink-soft); }
.stack { position: relative; aspect-ratio: 1 / 1.02; max-width: 520px; width: 100%; justify-self: center; }
.stack a { position: absolute; width: 62%; display: block; transform-origin: 50% 90%;
  transition: transform .5s var(--spring), filter .2s; filter: drop-shadow(0 10px 18px rgba(60, 45, 10, .28)); }
.stack a svg { width: 100%; height: auto; display: block; }
.stack a:nth-child(1) { left: 2%; top: 14%; transform: rotate(-11deg); }
.stack a:nth-child(2) { left: 19%; top: 4%; transform: rotate(-1deg); z-index: 3; }
.stack a:nth-child(3) { left: 38%; top: 27%; transform: rotate(9deg); z-index: 2; }
.stack a:nth-child(3) .tab { left: auto; right: 14px; }
.stack a:hover, .stack a:focus-visible { z-index: 5; filter: drop-shadow(0 18px 26px rgba(60, 45, 10, .35)); }
.stack a:nth-child(1):hover { transform: rotate(-14deg) translateY(-14px); }
.stack a:nth-child(2):hover { transform: rotate(-2deg) translateY(-16px); }
.stack a:nth-child(3):hover { transform: rotate(12deg) translateY(-14px); }
.stack .tab { position: absolute; top: -14px; left: 14px; z-index: 4; background: var(--cobalt); color: #fff;
  font: 700 .82rem/1 var(--body); padding: 7px 12px 9px; border-radius: 5px 5px 0 0; letter-spacing: .04em; }
@media (prefers-reduced-motion: no-preference) {
  .stack a { animation: fan .9s var(--spring) both; }
  .stack a:nth-child(2) { animation-delay: .08s; }
  .stack a:nth-child(3) { animation-delay: .16s; }
}
@keyframes fan { from { transform: rotate(0) translate(20%, 30px); opacity: 0; } }
@media (max-width: 820px) {
  .hero { grid-template-columns: 1fr; gap: 10px; padding-bottom: 40px; }
  .stack { max-width: 400px; order: -1; }
  .stack a:nth-child(1) { left: 8%; }
  .stack a:nth-child(3) { left: 34%; }
}

/* sections */
.band { padding: 64px 0; }
.band.sheet { background: var(--sheet); border-top: 1px solid var(--sheet-edge); border-bottom: 1px solid var(--sheet-edge); }
.kicker { font: 700 .8rem/1 var(--body); letter-spacing: .14em; text-transform: uppercase; color: var(--cobalt); margin-bottom: 14px; }
.doors { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 28px; }
.door { position: relative; background: var(--sheet); border: 1px solid var(--sheet-edge); border-radius: 2px var(--r) var(--r) var(--r);
  padding: 30px 24px 24px; box-shadow: var(--shadow); }
.door .tab { position: absolute; top: -15px; left: -1px; background: var(--sheet); border: 1px solid var(--sheet-edge); border-bottom: 0;
  padding: 5px 14px 3px; border-radius: 6px 6px 0 0; font: 700 .8rem/1.2 var(--body); color: var(--cobalt); letter-spacing: .06em; text-transform: uppercase; }
.door ol { padding-left: 1.2em; margin: 0 0 18px; color: var(--ink-soft); }
.door ol li { margin-bottom: 6px; }
@media (max-width: 820px) { .doors { grid-template-columns: 1fr; gap: 34px; } }

.ledger { width: 100%; border-collapse: collapse; margin-top: 18px; font-size: 1rem; }
.ledger th, .ledger td { text-align: left; padding: 14px 10px; border-bottom: 1px solid var(--sheet-edge); vertical-align: top; }
.ledger th { font-weight: 700; width: 22%; }
.ledger td.where { font-weight: 700; color: var(--ok); white-space: nowrap; }
.ledger td.where.server { color: var(--cobalt); }
@media (max-width: 640px) { .ledger th, .ledger td { display: block; width: auto; padding: 4px 0; border: 0; } .ledger tr { display: block; padding: 12px 0; border-bottom: 1px solid var(--sheet-edge); } }

.foot { padding: 36px 0 60px; font-size: .9rem; color: var(--ink-soft); }
.foot a { color: var(--ink-soft); }
.foot .links { display: flex; flex-wrap: wrap; gap: 18px; margin-bottom: 10px; }

/* long-form pages */
.doc { background: var(--sheet); max-width: 760px; margin: 10px auto 60px; padding: 40px clamp(20px, 5vw, 56px); box-shadow: var(--shadow); border-radius: 2px; }
.doc h2 { font-size: 1.6rem; margin-top: 1.4em; }

/* ---------- the workbench app ---------- */
.app-body { min-height: 100vh; padding-bottom: 92px; }
.bench { max-width: 860px; margin: 0 auto; padding: 0 16px 30px; }
.panel { background: var(--sheet); border: 1px solid var(--sheet-edge); border-radius: 2px var(--r) var(--r) var(--r);
  box-shadow: var(--shadow); padding: 26px clamp(16px, 4vw, 34px) 30px; }
.panel[hidden] { display: none; }
@media (prefers-reduced-motion: no-preference) { .panel.enter { animation: slideup .45s var(--spring) both; } }
@keyframes slideup { from { transform: translateY(40px); opacity: 0; } }
.panel h1 { font-size: clamp(2rem, 6vw, 2.8rem); }
.panel .sub { color: var(--ink-soft); margin-bottom: 22px; }

.dock { position: fixed; left: 0; right: 0; bottom: 0; z-index: 30; background: var(--sheet); border-top: 1px solid var(--sheet-edge);
  display: grid; grid-template-columns: repeat(3, 1fr); padding-bottom: env(safe-area-inset-bottom); box-shadow: 0 -6px 20px -12px rgba(60, 45, 10, .4); }
.dock button { border: 0; background: none; padding: 12px 6px 14px; font: 700 .95rem/1.1 var(--body); color: var(--ink-soft); cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 4px; border-top: 4px solid transparent; }
.dock button svg { width: 24px; height: 24px; }
.dock button[aria-selected="true"] { color: var(--cobalt); border-top-color: var(--cobalt); }
@media (min-width: 1000px) {
  .app-body { padding-bottom: 0; padding-left: 132px; }
  .dock { top: 0; right: auto; width: 116px; grid-template-columns: 1fr; grid-auto-rows: min-content; align-content: start; padding-top: 90px;
    border-top: 0; border-right: 1px solid var(--sheet-edge); box-shadow: 6px 0 20px -14px rgba(60, 45, 10, .4); }
  .dock button { border-top: 0; border-left: 4px solid transparent; padding: 18px 6px; }
  .dock button[aria-selected="true"] { border-left-color: var(--cobalt); }
}

.drop { border: 2px dashed var(--desk-line); border-radius: var(--r); padding: 26px 18px; text-align: center; background: #FFFBEF; }
.drop.over { border-color: var(--cobalt); background: var(--cobalt-wash); }
.drop .limits { font-size: .88rem; color: var(--ink-soft); margin-top: 10px; }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.vh { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.note { font-size: .9rem; color: var(--ink-soft); }
.row + .note { margin-top: 16px; }
.err { color: var(--stamp); font-weight: 700; }
label.field { display: block; font-weight: 700; margin: 16px 0 6px; }
input[type=text] { font: 1rem var(--body); padding: 11px 12px; border: 2px solid var(--desk-line); border-radius: var(--r); width: 100%; max-width: 420px; background: #fff; }

/* scan: page tray */
.tray { display: grid; grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 14px; margin: 20px 0; }
.thumb { position: relative; background: #fff; border: 1px solid var(--sheet-edge); box-shadow: 0 4px 10px -6px rgba(60, 45, 10, .5); }
.thumb img { width: 100%; display: block; aspect-ratio: 1 / 1.41; object-fit: contain; background: #fff; }
.thumb .n { position: absolute; left: 6px; top: 6px; background: var(--ink); color: #fff; font-size: .75rem; padding: 2px 7px; border-radius: 9px; }
.thumb .acts { display: flex; justify-content: space-between; padding: 4px; }
.thumb .acts button { border: 0; background: none; color: var(--cobalt); font: 700 .8rem var(--body); cursor: pointer; padding: 6px 4px; }
.thumb .acts button.rm { color: var(--stamp); }

/* scan: corner editor */
.editor { position: fixed; inset: 0; z-index: 60; background: rgba(35, 33, 28, .92); display: flex; flex-direction: column; }
.editor[hidden] { display: none; }
.editor .stage { flex: 1; position: relative; display: flex; align-items: center; justify-content: center; overflow: hidden; touch-action: none; }
.editor canvas { max-width: 100%; max-height: 100%; }
.editor .handle { position: absolute; width: 34px; height: 34px; margin: -17px 0 0 -17px; border-radius: 50%; background: rgba(255, 253, 247, .25);
  border: 3px solid #fff; touch-action: none; cursor: grab; }
.editor svg.quad { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.editor .bar { background: var(--sheet); padding: 14px 16px calc(14px + env(safe-area-inset-bottom)); display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between; align-items: center; }
.seg { display: inline-flex; border: 2px solid var(--cobalt); border-radius: var(--r); overflow: hidden; }
.seg button { border: 0; background: var(--sheet); color: var(--cobalt); font: 700 .9rem var(--body); padding: 10px 14px; cursor: pointer; }
.seg button[aria-pressed="true"] { background: var(--cobalt); color: #fff; }

/* sign */
.pages { display: flex; flex-direction: column; gap: 18px; margin-top: 20px; }
.pdfpage { position: relative; margin: 0 auto; box-shadow: var(--shadow); background: #fff; touch-action: pan-y; }
.pdfpage canvas { display: block; width: 100%; height: auto; }
.pdfpage.placing { cursor: crosshair; outline: 3px dashed var(--cobalt); outline-offset: 3px; }
.mark { position: absolute; border: 2px dashed var(--cobalt); touch-action: none; cursor: move; }
.mark img { width: 100%; height: 100%; display: block; pointer-events: none; }
.mark .grip { position: absolute; right: -12px; bottom: -12px; width: 24px; height: 24px; border-radius: 50%; background: var(--cobalt); border: 3px solid #fff; cursor: nwse-resize; touch-action: none; }
.mark .x { position: absolute; right: -12px; top: -12px; width: 24px; height: 24px; border-radius: 50%; background: var(--stamp); color: #fff; border: 2px solid #fff; font: 700 13px/18px var(--body); text-align: center; cursor: pointer; padding: 0; }
.sticky-tools { position: sticky; top: 0; z-index: 20; background: var(--sheet); padding: 12px 0; border-bottom: 1px solid var(--sheet-edge); }
.sigbox { background: #fff; border: 2px solid var(--desk-line); border-radius: var(--r); touch-action: none; width: 100%; height: 180px; display: block; }
dialog { border: 0; border-radius: var(--r); padding: 22px; max-width: 560px; width: calc(100% - 24px); background: var(--sheet); box-shadow: var(--shadow); }
dialog::backdrop { background: rgba(35, 33, 28, .6); }

/* the Signed stamp moment */
.stampmark { position: fixed; left: 50%; top: 40%; z-index: 80; transform: translate(-50%, -50%) rotate(-8deg); pointer-events: none;
  font: 2.4rem/1 var(--display); color: var(--stamp); border: 4px solid var(--stamp); padding: 10px 22px; border-radius: 8px; background: rgba(255, 253, 247, .85); }
@media (prefers-reduced-motion: no-preference) { .stampmark { animation: stamp .9s var(--spring) both; } }
@keyframes stamp { 0% { transform: translate(-50%, -50%) rotate(-8deg) scale(2.2); opacity: 0; } 35% { transform: translate(-50%, -50%) rotate(-8deg) scale(.92, 1.06); opacity: 1; } 55% { transform: translate(-50%, -50%) rotate(-8deg) scale(1); } 85% { opacity: 1; } 100% { opacity: 0; } }

/* shrink result */
.result { display: grid; grid-template-columns: 1fr auto; gap: 6px 16px; align-items: center; margin-top: 22px; padding: 16px; border: 1px solid var(--sheet-edge); border-radius: var(--r); background: #fff; }
.result .name { font-weight: 700; word-break: break-all; }
.result .sizes { font-size: 1.05rem; }
.result .chip { display: inline-block; padding: 3px 10px; border-radius: 12px; background: var(--cobalt-wash); color: var(--cobalt); font-weight: 700; font-size: .85rem; }
.progress { height: 6px; background: var(--sheet-edge); border-radius: 3px; overflow: hidden; margin-top: 14px; }
.progress i { display: block; height: 100%; width: 40%; background: var(--cobalt); animation: slide 1.1s ease-in-out infinite; }
@keyframes slide { from { transform: translateX(-100%); } to { transform: translateX(260%); } }