/**
 * Unlock PDF — workspace styles
 * ─────────────────────────────────────────────────────────────────────
 * Renders after a file is selected (inside #workspace-page).
 * Scoped under .up-workspace so it never leaks into other tool pages.
 * Uses the shared design tokens from assets/css/variables.min.css so it
 * automatically follows the site's light/dark theme.
 */

.up-workspace,
.up-workspace *,
.up-workspace *::before,
.up-workspace *::after { box-sizing: border-box; }
.up-workspace { font-family: var(--font-base); color: var(--color-text); }
.up-workspace button,
.up-workspace input { font-family: inherit; }

.up-layout {
  display: flex;
  align-items: stretch;
  min-height: calc(100vh - var(--header-height, 68px));
  background: var(--color-bg);
}

.up-main {
  flex: 1;
  padding: 28px 32px;
  min-width: 0;
}
.up-main-title {
  font-size: .92rem;
  font-weight: 700;
  color: var(--color-text-muted);
  margin-bottom: 22px;
  word-break: break-word;
}

/* ── Settings block ── */
.up-settings {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 22px;
}
.up-settings.is-desktop { display: flex; flex-direction: column; gap: 16px; margin-bottom: 20px; }

.up-setting-card {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: var(--transition-fast);
}
.up-setting-card:hover { box-shadow: var(--shadow-sm); }
.up-setting-label {
  font-size: .8rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: .5px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.up-setting-label small { text-transform: none; font-weight: 600; color: var(--color-text-muted); opacity: .7; font-size: .72rem; }

/* password input */
.up-pw-row { position: relative; display: flex; align-items: center; }
.up-pw-input {
  width: 100%;
  padding: 12px 44px 12px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: .95rem;
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-surface);
  transition: var(--transition-fast);
  outline: none;
}
.up-pw-input:focus { border-color: var(--color-primary); }
.up-pw-input:disabled { opacity: .55; cursor: not-allowed; }
.up-pw-toggle {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  width: 32px; height: 32px; border: none; background: transparent; border-radius: 8px;
  display: flex; align-items: center; justify-content: center; cursor: pointer;
  color: var(--color-text-muted);
}
.up-pw-toggle:hover { background: var(--color-bg); }
.up-pw-toggle svg { width: 17px; height: 17px; }

.up-fmt-hint { font-size: .72rem; color: var(--color-text-muted); font-weight: 600; }
.up-wrong-pw-text { font-size: .75rem; font-weight: 700; color: var(--color-primary); display: none; }
.up-wrong-pw-text.show { display: block; }

@media (max-width: 480px) {
  .up-settings:not(.is-desktop) { grid-template-columns: 1fr; }
}

/* ── Document info ── */
.up-info-section { margin-top: 0; }
.up-section-title { font-size: .92rem; font-weight: 700; color: var(--color-text-muted); margin-bottom: 16px; }
.up-stats-row { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 14px; }
.up-stat-card { background: var(--color-surface); border: 1.5px solid var(--color-border); border-radius: 14px; padding: 16px; text-align: center; }
.up-stat-val { font-size: 1.15rem; font-weight: 900; word-break: break-word; }
.up-stat-label { font-size: .68rem; color: var(--color-text-muted); font-weight: 600; margin-top: 4px; text-transform: uppercase; letter-spacing: .4px; }

/* ── Notice banners ── */
.up-notice { margin-top: 18px; border-radius: 14px; padding: 16px; display: none; gap: 12px; align-items: flex-start; }
.up-notice.show { display: flex; }
.up-notice svg { width: 20px; height: 20px; margin-top: 2px; flex-shrink: 0; }
.up-notice p { font-size: .86rem; font-weight: 600; line-height: 1.5; }
.up-notice.is-warning { background: var(--amber-light); border: 1.5px solid var(--amber); }
.up-notice.is-warning svg, .up-notice.is-warning p { color: var(--orange); }
.up-notice.is-info { background: var(--blue-light); border: 1.5px solid var(--blue); }
.up-notice.is-info svg, .up-notice.is-info p { color: var(--blue); }
.up-notice.is-success { background: var(--green-light); border: 1.5px solid var(--green); }
.up-notice.is-success svg, .up-notice.is-success p { color: var(--green); }

/* ── What unlocking does ── */
.up-whatnext-section { margin-top: 24px; }
.up-whatnext-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.up-whatnext-card {
  background: var(--color-surface); border: 1.5px solid var(--color-border); border-radius: var(--radius-md);
  padding: 16px 18px; display: flex; gap: 12px; align-items: flex-start;
}
.up-whatnext-card svg { width: 20px; height: 20px; color: var(--color-primary); margin-top: 2px; flex-shrink: 0; }
.up-whatnext-title { font-size: .88rem; font-weight: 700; margin-bottom: 2px; }
.up-whatnext-desc { font-size: .76rem; color: var(--color-text-muted); font-weight: 600; line-height: 1.5; }

.up-error {
  margin-top: 18px;
  background: var(--color-primary-light);
  border: 1px solid var(--color-primary);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--color-primary-dark);
  font-size: .85rem;
  font-weight: 600;
  display: none;
}

/* ── Sidebar ── */
.up-sidebar {
  width: 420px;
  background: var(--color-surface);
  border-left: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}
.up-sidebar-top { flex: 1; overflow-y: auto; padding: 26px 22px 20px; }
.up-sidebar-title { font-size: 1.5rem; font-weight: 900; margin-bottom: 18px; }

.up-info-box { background: var(--blue-light); border: 1px solid var(--blue); border-radius: 12px; padding: 14px; display: flex; gap: 10px; margin-bottom: 16px; }
.up-info-box svg { width: 16px; height: 16px; color: var(--blue); flex-shrink: 0; margin-top: 2px; }
.up-info-text { font-size: .82rem; line-height: 1.6; color: var(--blue); }

.up-progress { margin-top: 18px; display: none; }
.up-progress-bar-wrap { width: 100%; height: 8px; border-radius: 999px; background: var(--color-border); overflow: hidden; margin-bottom: 8px; }
.up-progress-bar { height: 100%; width: 0; background: var(--color-primary); border-radius: 999px; transition: width .3s; }
.up-progress-text { font-size: .8rem; color: var(--color-text-muted); }

.up-success { margin-top: 18px; background: var(--color-surface); border: 1px solid var(--green); border-radius: 14px; padding: 18px; text-align: center; display: none; }
.up-success h3 { font-size: 1.05rem; }
.up-success-icon { width: 48px; height: 48px; border-radius: 50%; background: var(--green-light); display: flex; align-items: center; justify-content: center; margin: 0 auto 12px; color: var(--green); }
.up-success-icon svg { width: 22px; height: 22px; }
.up-success-desc { font-size: .85rem; color: var(--color-text-muted); margin-top: 6px; }
.up-btn-again { margin-top: 12px; background: none; border: none; color: var(--color-primary); cursor: pointer; font-weight: 700; display: block; width: 100%; padding: 6px; }

.up-sidebar-bottom { position: sticky; bottom: 0; background: var(--color-surface); border-top: 1px solid var(--color-border); padding: 18px; z-index: 100; }
.up-btn-unlock {
  width: 100%;
  height: 64px;
  border: none;
  border-radius: 18px;
  background: var(--color-primary);
  color: #fff;
  font-size: 1.1rem;
  font-weight: 900;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  transition: var(--transition-fast);
  box-shadow: 0 10px 25px rgba(229, 50, 45, .25);
}
.up-btn-unlock:hover:not(:disabled) { background: var(--color-primary-dark); }
.up-btn-unlock:disabled { opacity: .5; cursor: not-allowed; }
.up-btn-unlock.is-download { background: var(--green); box-shadow: 0 10px 25px rgba(46, 125, 50, .25); }
.up-btn-unlock.is-download:hover:not(:disabled) { filter: brightness(0.92); }
.up-btn-icon { width: 34px; height: 34px; border-radius: 50%; background: rgba(255,255,255,.2); display: flex; align-items: center; justify-content: center; }
.up-btn-icon svg { width: 18px; height: 18px; }
.up-privacy-note { margin-top: 10px; text-align: center; font-size: .7rem; color: var(--color-text-muted); }
.up-privacy-note svg { width: 12px; height: 12px; vertical-align: -2px; margin-right: 3px; }

/* ── Full-screen processing overlay (mobile + desktop) ── */
.up-processing-overlay {
  display: none; position: fixed; inset: 0; background: var(--color-overlay); backdrop-filter: blur(3px);
  z-index: 2000; align-items: center; justify-content: center; padding: 20px;
}
.up-processing-overlay.show { display: flex; }
.up-processing-card { background: var(--color-surface); border-radius: 22px; padding: 34px 28px; max-width: 360px; width: 100%; text-align: center; box-shadow: var(--shadow-lg); }
.up-processing-spinner {
  width: 56px; height: 56px; border-radius: 50%; border: 5px solid var(--color-primary-light);
  border-top-color: var(--color-primary); margin: 0 auto 18px; animation: up-spin .9s linear infinite;
}
@keyframes up-spin { to { transform: rotate(360deg); } }
.up-processing-title { font-size: 1.05rem; font-weight: 800; margin-bottom: 6px; }
.up-processing-stage { font-size: .86rem; color: var(--color-text-muted); font-weight: 600; min-height: 20px; margin-bottom: 16px; }
.up-processing-bar-wrap { width: 100%; height: 10px; border-radius: 999px; background: var(--color-border); overflow: hidden; margin-bottom: 8px; }
.up-processing-bar-fill { height: 100%; width: 0; background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark)); border-radius: 999px; transition: width .3s ease; }
.up-processing-pct { font-size: .78rem; color: var(--color-text-muted); font-weight: 700; }

/* ── Responsive ── */
@media (max-width: 1100px) {
  .up-sidebar { width: 360px; }
  .up-main { padding: 24px; }
}
@media (max-width: 768px) {
  .up-layout { flex-direction: column; min-height: 0; }
  .up-main { width: 100%; padding: 16px 14px 130px; }
  .up-sidebar {
    position: fixed; left: 0; bottom: 0; top: auto; width: 100%; height: auto;
    border-left: none; border-top: 1px solid var(--color-border);
    z-index: 999; box-shadow: 0 -5px 20px rgba(0,0,0,.08);
  }
  .up-sidebar-top { display: none; }
  .up-sidebar-bottom { padding: 12px 14px calc(12px + env(safe-area-inset-bottom)); border-top: none; }
  .up-btn-unlock { height: 58px; border-radius: 16px; font-size: 1rem; }
  .up-privacy-note { display: none; }
}
@media (max-width: 480px) {
  .up-stats-row { grid-template-columns: 1fr 1fr; }
  .up-btn-unlock { height: 54px; font-size: .95rem; }
}