/* Image Metadata Cleaner — PWA styles
   No webfonts (offline + strict CSP), system font stack only. */

:root {
  --bg: #0b0f14;
  --surface: #131a23;
  --surface-2: #1b2430;
  --surface-3: #232f3d;
  --text: #e8eef6;
  --muted: #93a4b8;
  --border: #26313d;
  --accent: #4cc9a0;
  --accent-ink: #04231a;
  --danger: #ff5c6c;
  --danger-bg: #2a1218;
  --warn: #ffb020;
  --ok: #4cc9a0;
  --info: #59a7ff;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Tahoma, "Noto Sans", Arial, sans-serif;
  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-2: #eef3f9;
  --surface-3: #e2eaf3;
  --text: #101822;
  --muted: #5a6b7d;
  --border: #d3dee9;
  --accent: #0d8f6c;
  --accent-ink: #ffffff;
  --danger: #d3273c;
  --danger-bg: #fdeaed;
  --warn: #a86a00;
  --ok: #0d8f6c;
  --info: #1a6fd4;
  --shadow: 0 10px 26px rgba(16, 24, 34, 0.12);
  color-scheme: light;
}

@media (prefers-color-scheme: light) {
  :root[data-theme="auto"] {
    --bg: #f4f7fb;
    --surface: #ffffff;
    --surface-2: #eef3f9;
    --surface-3: #e2eaf3;
    --text: #101822;
    --muted: #5a6b7d;
    --border: #d3dee9;
    --accent: #0d8f6c;
    --accent-ink: #ffffff;
    --danger: #d3273c;
    --danger-bg: #fdeaed;
    --warn: #a86a00;
    --ok: #0d8f6c;
    --info: #1a6fd4;
    --shadow: 0 10px 26px rgba(16, 24, 34, 0.12);
    color-scheme: light;
  }
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  overflow-wrap: anywhere;
}

.wrap { max-width: 1060px; margin: 0 auto; padding: 0 16px 64px; }

a { color: var(--info); }

/* ---------------------------------------------------------------- header */
.top {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.top-inner {
  max-width: 1060px;
  margin: 0 auto;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.brand { display: flex; align-items: center; gap: 10px; margin-inline-end: auto; }
.brand img { width: 30px; height: 30px; }
.brand b { font-size: 1.02rem; letter-spacing: -0.01em; }
.brand span { color: var(--muted); font-size: 0.78rem; display: block; }

.spacer { flex: 1 1 auto; }

button, select, input[type="text"], input[type="number"], input[type="search"] {
  font: inherit;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
}

input[type="range"] { accent-color: var(--accent); width: 100%; }
input[type="text"] { width: 100%; }
input[type="file"] { display: none; }

button { cursor: pointer; transition: background 0.15s, transform 0.05s; }
button:hover { background: var(--surface-3); }
button:active { transform: translateY(1px); }

button.primary {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: transparent;
  font-weight: 650;
}
button.primary:hover { filter: brightness(1.07); }
button.ghost { background: transparent; }
button:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---------------------------------------------------------------- blocks */
.hero {
  margin: 22px 0 18px;
  padding: 22px;
  background: linear-gradient(160deg, var(--surface), var(--surface-2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

h1 { font-size: clamp(1.4rem, 3.4vw, 2rem); margin: 0 0 6px; letter-spacing: -0.02em; }
h2 { font-size: 1.1rem; margin: 26px 0 10px; }
h3 { font-size: 0.98rem; margin: 0 0 8px; }
p { margin: 0 0 10px; }
.lead { color: var(--muted); margin: 0; }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.76rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--muted);
}
.pill.ok { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 45%, var(--border)); }
.pill.bad { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 45%, var(--border)); }
.pill.info { color: var(--info); border-color: color-mix(in srgb, var(--info) 45%, var(--border)); }
.pill.warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 45%, var(--border)); }

.pills { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 14px;
  box-shadow: var(--shadow);
}

/* --------------------------------------------------------------- dropzone */
.drop {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 34px 18px;
  text-align: center;
  background: var(--surface);
  transition: border-color 0.15s, background 0.15s;
}
.drop.hot { border-color: var(--accent); background: var(--surface-2); }
.drop .big { font-size: 1.05rem; font-weight: 650; margin-bottom: 6px; }
.drop .hint { color: var(--muted); font-size: 0.86rem; }
.drop .actions { margin-top: 14px; display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }

/* ---------------------------------------------------------------- options */
details.options > summary {
  cursor: pointer;
  font-weight: 650;
  padding: 4px 0;
  list-style: none;
}
details.options > summary::-webkit-details-marker { display: none; }
details.options > summary::before { content: "▸ "; color: var(--muted); }
details.options[open] > summary::before { content: "▾ "; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(215px, 1fr));
  gap: 14px;
  margin-top: 12px;
}

.field { display: flex; flex-direction: column; gap: 6px; }
.field > label { font-size: 0.82rem; color: var(--muted); font-weight: 600; }
.field .value { font-family: var(--mono); font-size: 0.8rem; color: var(--text); }
.row { display: flex; gap: 8px; align-items: center; }
.check { display: flex; align-items: center; gap: 8px; font-size: 0.86rem; }
.check input { width: 16px; height: 16px; accent-color: var(--accent); }

/* ---------------------------------------------------------------- warning */
.alert {
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin: 0 0 12px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  font-size: 0.9rem;
}
.alert.danger {
  background: var(--danger-bg);
  border-color: color-mix(in srgb, var(--danger) 50%, var(--border));
  color: var(--text);
}
.alert.danger strong { color: var(--danger); }
.alert.warn { border-color: color-mix(in srgb, var(--warn) 50%, var(--border)); }
.alert.ok { border-color: color-mix(in srgb, var(--ok) 45%, var(--border)); }
.alert .coords {
  font-family: var(--mono);
  font-size: 1.02rem;
  font-weight: 700;
  display: inline-block;
  margin-top: 4px;
  word-break: break-all;
}

/* ------------------------------------------------------------------ table */
table.meta { width: 100%; border-collapse: collapse; font-size: 0.84rem; }
table.meta th, table.meta td {
  text-align: start;
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
table.meta th { color: var(--muted); font-weight: 600; width: 42%; word-break: break-word; }
table.meta td { font-family: var(--mono); font-size: 0.79rem; word-break: break-word; }
table.meta tr.sensitive th { color: var(--danger); }
table.meta tr.tech th { color: var(--muted); opacity: 0.85; }

/* ------------------------------------------------------------------- file */
.file-head {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.file-head .name { font-weight: 650; word-break: break-all; }
.file-head .size { color: var(--muted); font-size: 0.8rem; font-family: var(--mono); }

/* -------------------------------------------------------- before / after */
.compare {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-2);
  touch-action: pan-y;
  user-select: none;
  --pos: 50%;
  max-height: 460px;
}
.compare img, .compare canvas {
  display: block;
  width: 100%;
  height: auto;
  max-height: 460px;
  object-fit: contain;
  background: var(--surface-2);
}
.compare .after {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  clip-path: inset(0 0 0 var(--pos));
}
:root[dir="rtl"] .compare .after { clip-path: inset(0 var(--pos) 0 0); }
.compare .cmp-range { width: 100%; margin-top: 10px; }
.compare .handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--pos);
  width: 3px;
  background: var(--accent);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.4);
  pointer-events: none;
}
:root[dir="rtl"] .compare .handle { left: auto; right: var(--pos); }
.compare .tag {
  position: absolute;
  top: 8px;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  pointer-events: none;
}
.compare .tag.before { inset-inline-start: 8px; }
.compare .tag.after { inset-inline-end: 8px; }
.compare.inert { cursor: default; }

.file-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.muted { color: var(--muted); font-size: 0.84rem; }
.mono { font-family: var(--mono); font-size: 0.8rem; }
.sr {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

/* ---------------------------------------------------------------- summary */
.summary-line {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

/* ---------------------------------------------------------------- toolbars */
.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.toolbar.sticky-bottom {
  position: sticky;
  bottom: 0;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--border);
  padding: 10px 0;
  margin-top: 18px;
  z-index: 10;
}

/* ------------------------------------------------------------------ proof */
.proof {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 12px;
}
.proof .card { margin: 0; }
.proof h3 { display: flex; align-items: center; gap: 8px; }

pre.code {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-family: var(--mono);
  font-size: 0.74rem;
  overflow-x: auto;
  margin: 8px 0 0;
  white-space: pre-wrap;
  word-break: break-all;
}

footer {
  margin-top: 34px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.84rem;
}
footer ul { padding-inline-start: 20px; margin: 8px 0; }

[hidden] { display: none !important; }

@media (max-width: 520px) {
  .wrap { padding: 0 12px 48px; }
  .card { padding: 13px; }
  .brand span { display: none; }
}