:root {
  --ink: var(--tools-text);
  --muted: var(--tools-muted);
  --paper: var(--tools-bg);
  --surface: var(--tools-surface);
  --line: var(--tools-line);
  --green: var(--tools-green);
  --green-dark: var(--tools-green-strong);
  --green-soft: var(--tools-green-soft);
  --red: var(--tools-red);
  --shadow: var(--tools-shadow);
  color: var(--ink);
  background: var(--paper);
  font-family: var(--tools-sans);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 12% 15%, color-mix(in srgb, var(--green) 8%, transparent), transparent 25rem),
    var(--paper);
}
button, input { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .55; }
a { color: inherit; }
[v-cloak] { display: none; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  font-size: .95rem;
  font-weight: 750;
  letter-spacing: -.02em;
  text-decoration: none;
}

main {
  width: min(1040px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  max-width: 850px;
  margin: 42px auto 54px;
  text-align: center;
}

.eyebrow,
.step-label {
  margin: 0 0 12px;
  color: var(--green-dark);
  font: 700 .72rem/1.3 var(--tools-mono);
  letter-spacing: .12em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 900px;
  margin: 0 auto;
  font-family: var(--tools-serif);
  font-size: clamp(2.7rem, 6vw, 4.9rem);
  font-weight: 500;
  line-height: .98;
  letter-spacing: -.055em;
}

.hero-copy {
  max-width: 680px;
  margin: 28px auto 0;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.16rem);
  line-height: 1.75;
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 9px 20px;
  margin: 22px 0 0;
  padding: 0;
  color: var(--green-dark);
  font-size: .77rem;
  font-weight: 750;
  list-style: none;
}

.hero-proof li,
.privacy-note,
.local-note {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.hero-proof svg,
.privacy-note svg,
.local-note svg { width: 15px; height: 15px; flex: 0 0 auto; }

.workspace {
  position: relative;
  min-height: 430px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  box-shadow: var(--shadow);
  transition: border-color .2s, transform .2s;
}

.workspace.is-dragging { border-color: var(--green); transform: scale(1.005); }

.empty-state {
  min-height: 430px;
  padding: 62px clamp(24px, 7vw, 78px);
  display: grid;
  grid-template-columns: 150px 1fr;
  align-items: center;
  gap: 24px 50px;
}

.empty-visual {
  width: 150px;
  height: auto;
  grid-row: span 4;
  object-fit: contain;
}

.empty-state h2,
.form-heading h2,
.guide-heading h2 {
  margin: 0;
  font-family: var(--tools-serif);
  font-size: clamp(1.9rem, 5vw, 2.7rem);
  font-weight: 500;
  letter-spacing: -.035em;
}

.empty-state p:not(.step-label),
.guide-heading > p:last-child {
  max-width: 650px;
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.65;
}

.file-action {
  min-height: 92px;
  padding: 18px;
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--tools-on-action);
  text-align: start;
  border: 1px solid var(--tools-action);
  border-radius: 14px;
  background: var(--tools-action);
  transition: transform .18s, background .18s, box-shadow .18s;
}

.file-action > span:last-child { display: grid; gap: 4px; }
.file-action strong { font-size: .96rem; }
.file-action small { font-size: .74rem; opacity: .8; }

.action-icon {
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 11px;
}
.action-icon svg { width: 23px; height: 23px; }

.privacy-note,
.drop-hint {
  grid-column: 2;
  margin: -4px 0 0 !important;
  font-size: .74rem;
}
.privacy-note { color: var(--green-dark) !important; font-weight: 700; }
.drop-hint { margin-top: -13px !important; color: var(--muted) !important; text-align: center; }
.empty-error { grid-column: 2; margin-top: 0; }

.unlock-form { padding: clamp(26px, 6vw, 62px); }
.form-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
}
.local-note {
  max-width: 260px;
  color: var(--green-dark);
  font-size: .74rem;
  font-weight: 700;
  text-align: end;
}

.batch-toolbar {
  margin-top: 34px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.batch-toolbar > strong { font-size: .9rem; }

.file-list {
  margin-top: 18px;
  display: grid;
  gap: 14px;
}

.file-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--tools-surface-soft);
}
.file-card.is-success { border-color: color-mix(in srgb, var(--green) 35%, var(--line)); }
.file-card.is-error { border-color: color-mix(in srgb, var(--red) 30%, var(--line)); }

.file-summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
}

.pdf-icon {
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  color: var(--green-dark);
  border: 1px solid color-mix(in srgb, var(--green) 30%, var(--line));
  border-radius: 13px;
  background: var(--green-soft);
}
.pdf-icon svg { width: 25px; height: 25px; }
.file-copy { min-width: 0; display: grid; gap: 3px; }
.file-copy small { color: var(--muted); font-size: .72rem; }
.file-copy strong { overflow: hidden; font-size: .95rem; text-overflow: ellipsis; white-space: nowrap; }
.file-copy > span { color: var(--muted); font-size: .76rem; }

.remove-file {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
}
.remove-file svg { width: 18px; height: 18px; }

.password-field {
  max-width: 700px;
  margin-top: 18px;
  display: grid;
  gap: 9px;
}
.password-field > span { font-size: .84rem; font-weight: 750; }
.password-field input {
  width: 100%;
  min-height: 48px;
  padding: 0 14px;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
}
.password-field small { color: var(--muted); font-size: .75rem; line-height: 1.55; }

.button {
  min-height: 46px;
  padding: 0 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-weight: 750;
  transition: transform .18s, background .18s, box-shadow .18s;
}
.button svg { width: 18px; height: 18px; }
.button-primary { color: var(--tools-on-action); border-color: var(--tools-action); background: var(--tools-action); }
.button-secondary { color: var(--green-dark); border-color: var(--line); background: var(--surface); }

.form-actions { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 10px; }
.message {
  max-width: 760px;
  margin-top: 24px;
  padding: 15px 17px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  border: 1px solid;
  border-radius: 12px;
}
.message > svg { width: 20px; height: 20px; flex: 0 0 auto; margin-top: 1px; }
.message-copy {
  min-width: 0;
  display: grid;
  flex: 1 1 auto;
  gap: 5px;
}
.message strong { font-size: .85rem; }
.message small { overflow-wrap: anywhere; font-size: .76rem; line-height: 1.5; }
.message-error { color: var(--red); border-color: color-mix(in srgb, var(--red) 32%, var(--line)); background: color-mix(in srgb, var(--red) 8%, var(--surface)); }
.message-success { color: var(--green-dark); border-color: color-mix(in srgb, var(--green) 32%, var(--line)); background: var(--green-soft); }

.item-status {
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--green-dark);
  font-size: .8rem;
  font-weight: 700;
}
.item-message { max-width: none; margin-top: 16px; }
.item-download { margin-left: auto; flex: 0 0 auto; }
.batch-message { max-width: none; }

.progress-area {
  margin-top: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--green-dark);
  font-size: .82rem;
  font-weight: 700;
}
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid color-mix(in srgb, var(--green) 24%, transparent);
  border-top-color: var(--green);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}

.drop-overlay {
  position: absolute;
  z-index: 20;
  inset: 10px;
  display: grid;
  place-content: center;
  gap: 12px;
  color: var(--green-dark);
  text-align: center;
  border: 2px dashed var(--green);
  border-radius: 18px;
  background: color-mix(in srgb, var(--paper) 96%, transparent);
}
.drop-overlay svg { width: 44px; height: 44px; margin: auto; }

.guide { padding: 88px 0 58px; }
.guide-heading { max-width: 730px; }
.guide-grid {
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.guide-grid article {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
}
.guide-grid article > svg { width: 24px; height: 24px; color: var(--green-dark); }
.guide-grid h3 { margin: 18px 0 8px; font-size: .96rem; }
.guide-grid p,
.limits-note { margin: 0; color: var(--muted); font-size: .82rem; line-height: 1.65; }
.limits-note { margin-top: 18px; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

button:focus-visible,
input:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--green) 42%, transparent);
  outline-offset: 3px;
}

@media (hover: hover) and (pointer: fine) {
  .file-action:hover,
  .button-primary:hover { background: var(--tools-action-hover); transform: translateY(-1px); }
  .button-secondary:hover { border-color: var(--green); transform: translateY(-1px); }
}

@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 720px) {
  .empty-state { grid-template-columns: 105px 1fr; gap: 22px 28px; }
  .empty-visual { width: 105px; }
  .guide-grid { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  main { width: min(100% - 32px, 1040px); }
  .hero { margin: 34px auto 42px; }
  .hero h1 { font-size: clamp(2.5rem, 13vw, 3.8rem); }
  .workspace { min-height: 0; border-radius: 20px; }
  .empty-state { min-height: 500px; padding: 36px 22px; grid-template-columns: 1fr; text-align: center; }
  .empty-visual { width: 132px; grid-row: auto; margin: auto; }
  .file-action,
  .privacy-note,
  .drop-hint,
  .empty-error { grid-column: 1; }
  .privacy-note { justify-content: center; }
  .file-action { width: 100%; }
  .unlock-form { padding: 30px 20px; }
  .form-heading { align-items: flex-start; flex-direction: column; }
  .local-note { max-width: none; text-align: start; }
  .batch-toolbar { align-items: stretch; flex-direction: column; }
  .batch-toolbar .button { width: 100%; }
  .file-summary { grid-template-columns: auto minmax(0, 1fr); }
  .remove-file { grid-column: 1 / -1; width: 100%; }
  .item-message { flex-wrap: wrap; }
  .item-download { width: 100%; margin-left: 0; }
  .form-actions { display: grid; }
  .form-actions .button { width: 100%; }
  .guide { padding-top: 66px; }
}

@media (prefers-color-scheme: dark) {
  .workspace { background: color-mix(in srgb, var(--surface) 94%, transparent); }
  .message-success { color: var(--tools-green-text); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}