/* =========================================================
   GhostShrinkr — Apple-inspired theme
   Light by default, dark via data-theme="dark" on <html>.
   ========================================================= */

:root,
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #fbfbfd;
  --surface: #ffffff;
  --surface-2: #f5f5f7;
  --surface-hover: #ececf0;
  --fg: #1d1d1f;
  --fg-soft: #424245;
  --muted: #86868b;
  --border: rgba(0, 0, 0, 0.08);
  --border-strong: rgba(0, 0, 0, 0.14);
  --accent: #0071e3;
  --accent-hover: #0077ed;
  --accent-fg: #ffffff;
  --warn: #ff9f0a;
  --danger: #ff3b30;
  --ok: #34c759;
  --type-jpg: #0071e3;
  --type-pdf: #c4610a;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #000000;
  --surface: #1c1c1e;
  --surface-2: #2c2c2e;
  --surface-hover: #3a3a3c;
  --fg: #f5f5f7;
  --fg-soft: #d1d1d6;
  --muted: #98989d;
  --border: rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.18);
  --accent: #0a84ff;
  --accent-hover: #409cff;
  --accent-fg: #ffffff;
  --warn: #ff9f0a;
  --danger: #ff453a;
  --ok: #30d158;
  --type-jpg: #64b5ff;
  --type-pdf: #ffb340;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.5), 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.6), 0 2px 6px rgba(0, 0, 0, 0.4);
}

* { box-sizing: border-box; }
*::selection { background: color-mix(in srgb, var(--accent) 30%, transparent); }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display",
    "Helvetica Neue", Helvetica, Arial, system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.47;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  transition: background-color .25s ease, color .25s ease;
}

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 1.25rem 5rem;
}

header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2.5rem;
}
header .title h1 {
  margin: 0 0 .35rem;
  font-size: 2.1rem;
  font-weight: 600;
  letter-spacing: -0.022em;
  color: var(--fg);
}
header .title p {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  letter-spacing: -0.01em;
}

.theme-toggle {
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  padding: 0;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--fg-soft);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, background .2s, color .2s, border-color .2s;
}
.theme-toggle:hover { background: var(--surface-hover); color: var(--fg); }
.theme-toggle:active { transform: scale(0.94); }

/* ---------- drop zone ---------- */
#dropzone {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
  box-shadow: var(--shadow-sm);
  transition: border-color .2s ease, background .2s ease,
    color .2s ease, box-shadow .25s ease, transform .2s ease;
}
#dropzone:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}
#dropzone.dragging {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 6%, var(--surface));
  color: var(--fg);
  box-shadow: var(--shadow-lg);
  transform: translateY(-1px);
}
#dropzone.loading {
  border-color: var(--accent);
  color: var(--fg);
  pointer-events: none;
  position: relative;
}
#dropzone.loading::after {
  content: "Reading files…";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border-radius: inherit;
  font-size: .9rem;
  color: var(--fg);
  animation: fade-in .15s ease-out;
}
@keyframes fade-in { from { opacity: 0; } }
#dropzone strong {
  display: block;
  color: var(--fg);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
#dropzone .sub {
  display: block;
  margin-top: .4rem;
  font-size: .9rem;
  color: var(--muted);
}
#dropzone small {
  display: block;
  margin-top: 1rem;
  font-size: .75rem;
  color: var(--muted);
  opacity: .8;
}

/* ---------- file list ---------- */
#file-list {
  margin-top: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: .9rem 1rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s ease, border-color .2s ease, background .2s ease;
}
.card:hover { box-shadow: var(--shadow-md); }
.card.processing { border-color: color-mix(in srgb, var(--warn) 45%, var(--border)); }
.card.error { border-color: color-mix(in srgb, var(--danger) 45%, var(--border)); }

.card-row {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.type-tag {
  flex: 0 0 auto;
  font-size: .62rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 2px 6px;
  border-radius: 5px;
  line-height: 1.4;
  text-transform: uppercase;
}
.type-tag.type-jpg {
  color: var(--type-jpg);
  background: color-mix(in srgb, var(--type-jpg) 14%, transparent);
}
.type-tag.type-pdf {
  color: var(--type-pdf);
  background: color-mix(in srgb, var(--type-pdf) 16%, transparent);
}

.info {
  flex: 1 1 auto;
  min-width: 0;
}
.info .name-row {
  display: flex;
  align-items: center;
  gap: .5rem;
  min-width: 0;
}
.info .status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex: 0 0 auto;
  background: var(--muted);
  opacity: .45;
}
.card.processing .status-dot { background: var(--warn); opacity: 1; animation: pulse 1.4s ease-in-out infinite; }
.card.done .status-dot { background: var(--ok); opacity: 1; }
.card.error .status-dot { background: var(--danger); opacity: 1; }
@keyframes pulse { 50% { opacity: .35; } }

.info .name {
  font-weight: 500;
  font-size: .95rem;
  color: var(--fg);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: -0.005em;
}
.info .meta {
  margin-top: .2rem;
  font-size: .8rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.003em;
}
.info .meta .saved { color: var(--ok); font-weight: 500; margin-left: .15rem; }
.info .meta .pending-download { color: var(--accent); font-weight: 500; }
.info .progress {
  margin-top: .55rem;
  height: 3px;
  background: var(--surface-2);
  border-radius: 999px;
  overflow: hidden;
}
.info .progress > div {
  height: 100%;
  background: var(--warn);
  width: 0;
  border-radius: inherit;
  transition: width .2s;
}

/* ---------- buttons ---------- */
.actions {
  display: flex;
  gap: .4rem;
  flex: 0 0 auto;
  position: relative;
}
.actions .burger {
  display: none;
  padding: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  font-size: 1.1rem;
  line-height: 1;
  align-items: center;
  justify-content: center;
}
.actions-menu {
  display: flex;
  gap: .4rem;
}

button {
  font: inherit;
  font-size: .875rem;
  font-weight: 500;
  letter-spacing: -0.005em;
  background: var(--surface-2);
  color: var(--fg);
  border: 1px solid transparent;
  border-radius: 980px;
  padding: .5rem 1rem;
  cursor: pointer;
  transition: background .15s, color .15s, transform .12s, box-shadow .15s;
}
button:hover:not(:disabled) { background: var(--surface-hover); }
button:active:not(:disabled) { transform: scale(0.97); }
button:disabled { opacity: .35; cursor: not-allowed; }

button.primary {
  background: var(--accent);
  color: var(--accent-fg);
  font-weight: 600;
  padding: .55rem 1.25rem;
  box-shadow: 0 1px 2px color-mix(in srgb, var(--accent) 40%, transparent);
}
button.primary:hover:not(:disabled) {
  background: var(--accent-hover);
  box-shadow: 0 4px 12px color-mix(in srgb, var(--accent) 35%, transparent);
}

button.icon {
  padding: .45rem .75rem;
  font-size: .85rem;
}
button.gear {
  padding: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  font-size: 1rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
button.gear.active { background: color-mix(in srgb, var(--accent) 14%, var(--surface-2)); color: var(--accent); }
button.danger:hover:not(:disabled) { color: var(--danger); background: color-mix(in srgb, var(--danger) 10%, var(--surface-2)); }

/* ---------- card settings ---------- */
.card-settings {
  margin-top: .9rem;
  padding-top: .9rem;
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: .55rem 1rem;
  align-items: center;
  font-size: .8rem;
  color: var(--muted);
}
.card-settings label {
  white-space: nowrap;
  font-weight: 500;
  color: var(--fg-soft);
}
.card-settings input[type=range] {
  width: 100%;
  accent-color: var(--accent);
}
.card-settings .val {
  font-variant-numeric: tabular-nums;
  min-width: 3.2rem;
  text-align: right;
  color: var(--fg);
  font-weight: 500;
}
.card-settings-reset {
  grid-column: 1 / -1;
  display: flex;
  justify-content: flex-end;
  margin-top: .3rem;
}
.card-settings-reset button {
  font-size: .75rem;
  color: var(--muted);
  background: transparent;
  padding: .35rem .75rem;
}
.card-settings-reset button:hover:not(:disabled) {
  color: var(--fg);
  background: var(--surface-2);
}

/* ---------- settings popover ---------- */
.header-actions {
  display: flex;
  align-items: flex-start;
  gap: .5rem;
  flex: 0 0 auto;
}
.settings-wrap { position: relative; }

.settings-popover {
  position: absolute;
  top: calc(100% + .5rem);
  right: 0;
  width: min(360px, calc(100vw - 2rem));
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  padding: 1rem 1.1rem 1.1rem;
  z-index: 100;
  display: grid;
  gap: 1rem;
  animation: popover-in .18s ease-out;
}
@keyframes popover-in {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

#settings-toggle[aria-expanded="true"] {
  background: var(--surface-hover);
  color: var(--fg);
  border-color: var(--border-strong);
}

.popover-close {
  position: absolute;
  top: .55rem;
  right: .55rem;
  width: 26px;
  height: 26px;
  padding: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.popover-close:hover:not(:disabled) {
  background: var(--surface-2);
  color: var(--fg);
}

.popover-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: .2rem;
  padding-top: .9rem;
  border-top: 1px solid var(--border);
}
.popover-footer button {
  font-size: .8rem;
  color: var(--muted);
  background: transparent;
}
.popover-footer button:hover:not(:disabled) {
  color: var(--fg);
  background: var(--surface-2);
}

.page-footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--muted);
  letter-spacing: -0.003em;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .35rem;
}
.page-footer .motto {
  font-size: .82rem;
  font-style: italic;
  letter-spacing: -0.005em;
  color: var(--fg-soft);
}
.page-footer .credit {
  font-size: .75rem;
}
.page-footer a {
  color: var(--muted);
  text-decoration: none;
  transition: color .15s;
}
.page-footer a:hover {
  color: var(--accent);
}

.setup-group {
  display: grid;
  gap: .55rem;
}
.setup-group-title {
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
.setup-row {
  display: grid;
  grid-template-columns: 6.5rem 1fr 3.2rem;
  align-items: center;
  gap: .9rem;
  font-size: .85rem;
}
.setup-row label {
  color: var(--fg-soft);
  font-weight: 500;
}
.setup-row label.with-check {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  cursor: pointer;
}
.setup-row label.with-check input[type="checkbox"] {
  margin: 0;
  accent-color: var(--accent);
  cursor: pointer;
}
.setup-row input[type=text]:disabled {
  opacity: .4;
  cursor: not-allowed;
}
.setup-row input[type=range] {
  width: 100%;
  accent-color: var(--accent);
}
.setup-row .val {
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--fg);
  font-weight: 500;
}
.setup-row input[type=text] {
  background: var(--surface-2);
  color: var(--fg);
  border: 1px solid transparent;
  border-radius: 8px;
  padding: .45rem .7rem;
  font: inherit;
  font-size: .85rem;
  transition: border-color .15s, background .15s;
  grid-column: 2 / span 2;
}
.setup-row input[type=text]:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--surface);
}

/* ---------- action bar ---------- */
#action-bar {
  margin-top: .6rem;
  display: flex;
  align-items: center;
  gap: .85rem;
  padding: 1rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-sm);
}
#stats {
  flex: 1 1 auto;
  color: var(--muted);
  font-size: .88rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.005em;
}
#stats .saved { color: var(--ok); font-weight: 600; }

/* ---------- toasts ---------- */
#toasts {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: .5rem;
  z-index: 1000;
  pointer-events: none;
}
.toast {
  background: var(--surface);
  color: var(--fg);
  border: 1px solid var(--border);
  padding: .7rem 1rem;
  border-radius: 12px;
  font-size: .85rem;
  max-width: 340px;
  box-shadow: var(--shadow-lg);
  animation: slidein .25s ease-out;
}
.toast::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--warn);
  margin-right: .55rem;
  vertical-align: middle;
}
.toast.error::before { background: var(--danger); }
@keyframes slidein {
  from { transform: translateX(12px); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

.hidden { display: none !important; }

/* ---------- responsive ---------- */
@media (max-width: 520px) {
  main { padding: 2rem 1rem 4rem; }
  header { margin-bottom: 1.75rem; }
  header .title h1 { font-size: 1.7rem; }
  #dropzone { padding: 2.2rem 1rem; border-radius: 16px; }
  .card { padding: .75rem .85rem; border-radius: 12px; }
  .card-row { gap: .75rem; }

  /* Burger menu: show the ⋯ button, collapse the action row into a popover */
  .actions .burger {
    display: inline-flex;
  }
  .actions-menu {
    display: none;
    position: absolute;
    top: calc(100% + .35rem);
    right: 0;
    flex-direction: column;
    gap: .25rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: .4rem;
    box-shadow: var(--shadow-lg);
    z-index: 50;
    min-width: 160px;
    animation: popover-in .15s ease-out;
  }
  .actions.open .actions-menu {
    display: flex;
  }
  .actions-menu button {
    justify-content: flex-start;
    text-align: left;
    padding: .55rem .75rem;
    border-radius: 8px;
    width: 100%;
  }
  .actions-menu button.gear {
    width: 100%;
    height: auto;
    border-radius: 8px;
  }

  #action-bar { flex-wrap: wrap; padding: .85rem 1rem; }
  #stats { flex-basis: 100%; margin-bottom: .5rem; }
}
