/* PocketPDF — Apple-tech light UI: Inter type, PDF-red accent, sand-fog
   (frosted) glass controls. Red is used sparingly for key actions only; the rest
   stays neutral white glass so the red reads premium, not loud.
   All selectors/ids preserved. */

@font-face {
  font-family: "Inter Variable";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../../fonts/Inter-variable.woff2") format("woff2");
}

:root {
  --bg-top: #fbfbfd;
  --bg-bottom: #eceef1;
  --surface: #ffffff;
  --ink: #1d1d1f;
  --ink-2: #3a3a3d;
  --muted: #6e6e73;
  --line: rgba(0, 0, 0, 0.08);
  --line-strong: rgba(0, 0, 0, 0.16);

  /* PDF red — the single accent */
  --red-hi: #f0594f;
  --red: #e0322a;
  --red-deep: #c0271f;
  --accent-soft: rgba(224, 50, 42, 0.1);
  --ring: rgba(224, 50, 42, 0.55);

  /* sand-fog glass */
  --glass: rgba(255, 255, 255, 0.55);
  --glass-strong: rgba(255, 255, 255, 0.72);
  --glass-brd: rgba(255, 255, 255, 0.85);
  --glass-blur: saturate(180%) blur(20px);

  --neutral-bg: rgba(0, 0, 0, 0.05);
  --warn-ink: #8a5300;
  --warn-bg: rgba(255, 196, 84, 0.16);
  --err-ink: #c0362c;
  --err-bg: rgba(255, 84, 70, 0.12);

  --r-card: 18px;
  --r-btn: 980px;
  --shadow-1: 0 1px 1px rgba(0, 0, 0, 0.04), 0 4px 14px rgba(0, 0, 0, 0.06);
  --shadow-2: 0 2px 8px rgba(0, 0, 0, 0.07), 0 22px 50px rgba(0, 0, 0, 0.12);
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --spring: cubic-bezier(0.34, 1.4, 0.5, 1);
  --font: "Inter Variable", -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui,
    "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}
[hidden] {
  display: none !important;
}

html,
body {
  margin: 0;
  min-height: 100%;
  color: var(--ink);
  background: linear-gradient(180deg, var(--bg-top) 0%, var(--bg-bottom) 100%) fixed;
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  letter-spacing: -0.011em;
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,
h2 {
  letter-spacing: -0.025em;
}

/* --------------------------------------------------------------- top bar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 22px;
  background: rgba(251, 251, 253, 0.7);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 13px;
}

.app-icon {
  width: 40px;
  height: 40px;
  flex: none;
  display: grid;
  place-items: center;
  border-radius: 11px;
  color: #fff;
  background: linear-gradient(155deg, #f5685e 0%, #e0322a 60%, #b41d15 100%);
  box-shadow: 0 4px 13px rgba(199, 38, 30, 0.42), inset 0 1px 0 rgba(255, 255, 255, 0.4),
    inset 0 -2px 4px rgba(120, 10, 5, 0.4);
}
.app-icon svg {
  width: 23px;
  height: 23px;
}
.logo {
  display: none;
}

.brand strong {
  display: block;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.018em;
}
.brand .sub {
  color: var(--muted);
  font-size: 12.5px;
}

.privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--glass);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  color: var(--ink-2);
  padding: 7px 13px;
  border-radius: var(--r-btn);
  font-size: 13px;
  font-weight: 550;
  white-space: nowrap;
  box-shadow: inset 0 0 0 1px var(--glass-brd), var(--shadow-1);
}

/* --------------------------------------------------------------- toolbar */
.toolbar {
  position: sticky;
  top: 66px;
  z-index: 9;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 22px;
  background: rgba(255, 255, 255, 0.62);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--line);
}
.spacer {
  flex: 1;
}
.count {
  color: var(--muted);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

/* --------------------------------------------------------------- buttons */
.btn {
  appearance: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: none;
  border-radius: var(--r-btn);
  padding: 9px 17px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 550;
  letter-spacing: -0.01em;
  color: var(--ink);
  background: var(--glass);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: inset 0 0 0 1px var(--glass-brd), inset 0 1px 0 rgba(255, 255, 255, 0.9),
    var(--shadow-1);
  transition: transform 0.18s var(--spring), background 0.18s var(--ease),
    box-shadow 0.18s var(--ease), opacity 0.18s var(--ease), filter 0.18s var(--ease);
}
.btn svg {
  width: 16px;
  height: 16px;
}
.btn-ghost {
  color: var(--ink-2);
}
.btn-ghost:hover:not(:disabled) {
  background: var(--glass-strong);
  transform: translateY(-1px);
}
.btn-primary {
  color: #fff;
  background: linear-gradient(180deg, var(--red-hi), var(--red));
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.28), 0 1px 2px rgba(150, 20, 12, 0.25),
    0 9px 22px rgba(224, 50, 42, 0.34);
}
.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  filter: brightness(1.06);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.3), 0 2px 4px rgba(150, 20, 12, 0.28),
    0 13px 30px rgba(224, 50, 42, 0.42);
}
.btn:active:not(:disabled) {
  transform: scale(0.97);
}
.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
label.btn {
  display: inline-flex;
  align-items: center;
}
:focus-visible {
  outline: 3px solid var(--ring);
  outline-offset: 2px;
}

/* --------------------------------------------------------------- layout */
#main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 30px 22px 10px;
  min-height: 56vh;
}

/* --------------------------------------------------------------- dropzone */
.dropzone {
  display: block;
  cursor: pointer;
  text-align: center;
  border: 1.5px dashed var(--line-strong);
  border-radius: 26px;
  background: var(--glass);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  padding: 72px 28px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7), var(--shadow-1);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease),
    transform 0.25s var(--spring), box-shadow 0.25s var(--ease);
}
.dropzone:hover {
  border-color: var(--red);
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
}
.dropzone.drag {
  border-color: var(--red);
  border-style: solid;
  background: rgba(255, 248, 247, 0.85);
  transform: scale(1.012);
  box-shadow: 0 0 0 4px var(--accent-soft), var(--shadow-2);
}
.dz-inner {
  max-width: 480px;
  margin: 0 auto;
}
.dz-icon {
  width: 76px;
  height: 76px;
  margin: 0 auto 18px;
  display: grid;
  place-items: center;
  border-radius: 22px;
  color: var(--red);
  background: var(--glass-strong);
  box-shadow: inset 0 0 0 1px var(--glass-brd), inset 0 1px 0 rgba(255, 255, 255, 0.9),
    0 8px 20px rgba(224, 50, 42, 0.16);
  transition: transform 0.3s var(--spring);
}
.dropzone:hover .dz-icon {
  transform: translateY(-3px) scale(1.04);
}
.dz-icon svg {
  width: 38px;
  height: 38px;
}
.dropzone h2 {
  margin: 0 0 6px;
  font-size: 23px;
  font-weight: 600;
}
.dropzone p {
  margin: 0 auto;
  max-width: 420px;
  color: var(--muted);
  font-size: 14.5px;
}
.dz-cta {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin: 20px 0 6px;
  padding: 11px 26px;
  border-radius: var(--r-btn);
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(180deg, var(--red-hi), var(--red));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.28), 0 1px 2px rgba(150, 20, 12, 0.25),
    0 9px 22px rgba(224, 50, 42, 0.34);
  transition: transform 0.18s var(--spring), filter 0.18s var(--ease);
}
.dropzone:hover .dz-cta {
  filter: brightness(1.06);
}
.dz-privacy {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 18px !important;
  color: var(--ink-2) !important;
  font-weight: 550;
  font-size: 13px !important;
}
.dz-privacy svg {
  width: 15px;
  height: 15px;
  color: var(--muted);
}

/* --------------------------------------------------------------- grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(176px, 1fr));
  gap: 18px;
  padding-top: 4px;
}

.page-card {
  position: relative;
  background: var(--surface);
  border-radius: var(--r-card);
  box-shadow: inset 0 0 0 1px var(--line), var(--shadow-1);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  cursor: grab;
  transition: transform 0.2s var(--spring), box-shadow 0.2s var(--ease), opacity 0.15s var(--ease);
}
.page-card:hover {
  transform: translateY(-4px);
  box-shadow: inset 0 0 0 1px var(--line), var(--shadow-2);
}
.page-card:active {
  cursor: grabbing;
}
.page-card.dragging {
  opacity: 0.35;
  transform: scale(0.96);
}
.page-card.drop-target {
  box-shadow: 0 0 0 2.5px var(--red), var(--shadow-2);
}

.thumb {
  height: 186px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  background: repeating-conic-gradient(#eef0f3 0% 25%, #f9fafb 0% 50%) 50% / 16px 16px;
  overflow: hidden;
}
.thumb img {
  max-width: 100%;
  max-height: 100%;
  border-radius: 3px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.16), 0 6px 16px rgba(0, 0, 0, 0.1);
  transition: transform 0.25s var(--spring);
  background: #fff;
}
.thumb .placeholder {
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  text-align: center;
}

.meta {
  padding: 9px 12px 0;
  font-size: 11.5px;
  font-weight: 500;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.actions {
  display: flex;
  gap: 2px;
  padding: 7px;
}
.actions button {
  flex: 1;
  display: grid;
  place-items: center;
  border: none;
  background: transparent;
  color: var(--muted);
  padding: 7px 0;
  border-radius: 9px;
  cursor: pointer;
  transition: background 0.15s var(--ease), color 0.15s var(--ease), transform 0.15s var(--spring);
}
.actions button svg {
  width: 16px;
  height: 16px;
}
.actions button:hover {
  background: var(--accent-soft);
  color: var(--red);
  transform: translateY(-1px);
}
.actions button:active {
  transform: scale(0.9);
}
.actions button.del:hover {
  color: var(--err-ink);
  background: var(--err-bg);
}

/* --------------------------------------------------------------- status */
.status {
  max-width: 1120px;
  margin: 14px auto 0;
  padding: 11px 17px;
  border-radius: 14px;
  font-size: 13.5px;
  font-weight: 600;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}
.status.ok {
  background: var(--neutral-bg);
  color: var(--ink-2);
}
.status.warn {
  background: var(--warn-bg);
  color: var(--warn-ink);
}
.status.err {
  background: var(--err-bg);
  color: var(--err-ink);
}

/* --------------------------------------------------------------- footer */
.footer {
  max-width: 1120px;
  margin: 32px auto 0;
  padding: 22px;
  display: flex;
  gap: 26px;
  justify-content: space-between;
  align-items: start;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
  border-top: 1px solid var(--line);
}
.footer strong {
  color: var(--ink);
}
.footer a {
  color: var(--red);
  text-decoration: none;
  font-weight: 600;
}
.footer a:hover {
  text-decoration: underline;
}
.footer-links {
  white-space: nowrap;
}

body.busy {
  cursor: progress;
}

@media (max-width: 640px) {
  .topbar {
    padding: 11px 15px;
  }
  .brand .sub {
    display: none;
  }
  .toolbar {
    top: 62px;
    padding: 10px 15px;
    flex-wrap: wrap;
  }
  #main {
    padding: 20px 15px 10px;
  }
  .dropzone {
    padding: 52px 20px;
  }
  .grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 13px;
  }
  .footer {
    flex-direction: column;
    gap: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}