/* EverydayUtils — shared styles */
:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --text: #1a2130;
  --muted: #5b6474;
  --border: #e3e6ec;
  --accent: #7c3aed;
  --accent-dark: #6527cf;
  --green: #148a4e;
  --green-bg: #e4f6ec;
  --red: #c23b3b;
  --red-bg: #fdecec;
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
  --radius: 12px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1420;
    --surface: #1a2130;
    --text: #eef1f6;
    --muted: #9aa4b5;
    --border: #2b3547;
    --accent: #a78bfa;
    --accent-dark: #bfa7fc;
    --green: #4cd48a;
    --green-bg: #14301f;
    --red: #ff8080;
    --red-bg: #3a1a1a;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  }
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container { max-width: 1000px; margin: 0 auto; padding: 0 1rem; }

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

/* Header */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 1rem;
  flex-wrap: wrap;
}
.logo {
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
  color: var(--text);
}
.nav-links { display: flex; gap: 1rem; flex-wrap: wrap; }
.nav-links a { text-decoration: none; color: var(--muted); font-size: 0.95rem; }
.nav-links a:hover { color: var(--accent); }

/* Hero */
main { padding: 1.5rem 0 3rem; }
h1 { font-size: 1.9rem; line-height: 1.25; margin: 0.5rem 0 0.4rem; }
.subtitle { color: var(--muted); margin: 0 0 1.2rem; max-width: 65ch; }

/* Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  margin: 1rem 0;
}

/* Toolbars & options */
.toolbar, .options {
  display: flex;
  gap: 0.5rem 0.9rem;
  flex-wrap: wrap;
  align-items: center;
}
.toolbar { margin-bottom: 1rem; }
.options { margin-top: 1rem; gap: 1.25rem; }
.opt { display: flex; align-items: center; gap: 0.45rem; font-size: 0.92rem; color: var(--muted); }
.opt select {
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
}
.opt input[type="range"] { accent-color: var(--accent); width: 140px; }
.opt input[type="number"] {
  width: 90px;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
}
.chip {
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--muted);
  border-radius: 999px;
  padding: 0.25rem 0.75rem;
  font-size: 0.85rem;
  cursor: pointer;
}
.chip.active { border-color: var(--accent); color: var(--accent); font-weight: 600; }

/* Buttons */
.btn {
  display: inline-block;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem 1rem;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  background: var(--bg);
  color: var(--text);
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: #fff; }
.btn.small { padding: 0.4rem 0.9rem; font-size: 0.88rem; flex-shrink: 0; }
#download-all { margin-top: 1rem; }

/* Dropzone (image tools) */
.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 2.5rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.dropzone:hover, .dropzone:focus-visible, .dropzone.dragover {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 6%, transparent);
  outline: none;
}
.dropzone p { margin: 0.3rem 0; }
.dropzone .hint { color: var(--muted); font-size: 0.85rem; }
.dropzone svg { width: 42px; height: 42px; color: var(--accent); }

/* Conversion results (image tools) */
.results { margin-top: 0.5rem; }
.result {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.75rem 0;
  border-top: 1px solid var(--border);
  margin-top: 0.75rem;
}
.result .thumb {
  width: 52px;
  height: 52px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  flex-shrink: 0;
}
.result .meta { flex: 1; min-width: 0; }
.result .meta strong {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 0.95rem;
}
.result .sizes { color: var(--muted); font-size: 0.85rem; }
.badge {
  display: inline-block;
  background: var(--green-bg);
  color: var(--green);
  border-radius: 999px;
  padding: 0.05rem 0.55rem;
  font-size: 0.78rem;
  font-weight: 600;
  margin-left: 0.4rem;
}
.result.error .sizes { color: var(--red); }

/* Text panes (dev tools) */
.panes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.pane label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
textarea {
  width: 100%;
  min-height: 300px;
  resize: vertical;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.88rem;
  line-height: 1.5;
}
textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

/* Status */
.status {
  margin-top: 0.75rem;
  padding: 0.5rem 0.85rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-family: var(--mono);
}
.status.ok { background: var(--green-bg); color: var(--green); }
.status.error { background: var(--red-bg); color: var(--red); }

/* Ad slots */
.ad-slot {
  min-height: 90px;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 1.5rem 0;
}

/* Content sections */
.content { margin-top: 2.5rem; }
.content h2 { font-size: 1.35rem; margin: 1.8rem 0 0.6rem; }
.content ol, .content ul { padding-left: 1.3rem; }
.content li { margin: 0.35rem 0; }
.content code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 0.08em 0.35em;
}

/* FAQ */
.faq details {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 0.75rem 1rem;
  margin: 0.6rem 0;
}
.faq summary { font-weight: 600; cursor: pointer; }
.faq details p { margin: 0.6rem 0 0.2rem; color: var(--muted); }

/* Tools grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 0.9rem;
  margin: 1rem 0;
}
.tools-grid a {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  text-decoration: none;
  color: var(--text);
  box-shadow: var(--shadow);
}
.tools-grid a:hover { border-color: var(--accent); }
.tools-grid strong { color: var(--accent); display: block; margin-bottom: 0.15rem; }
.tools-grid span { color: var(--muted); font-size: 0.87rem; }

/* Stat tiles (word counter) */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.stat {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.6rem 0.8rem;
  text-align: center;
}
.stat strong { display: block; font-size: 1.35rem; color: var(--accent); }
.stat span { color: var(--muted); font-size: 0.8rem; }
.limit-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0.2rem;
  border-top: 1px solid var(--border);
  font-size: 0.92rem;
}
.limit-row .badge.over { background: var(--red-bg); color: var(--red); }

/* Color inputs & gradient preview */
.opt input[type="color"] {
  width: 44px;
  height: 34px;
  padding: 2px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  cursor: pointer;
}
.gradient-preview {
  height: 180px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-bottom: 1rem;
}

/* Palette swatches */
.swatches { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-top: 1rem; }
.swatch {
  flex: 1 1 100px;
  min-width: 100px;
  height: 96px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  cursor: pointer;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 0.5rem;
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 600;
}
.preview-img {
  max-width: 100%;
  max-height: 260px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-top: 1rem;
}

/* Password output */
.field-lg {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  font-size: 1.05rem;
}
.strength { margin-top: 0.6rem; font-size: 0.9rem; color: var(--muted); }

/* QR canvas */
#qr-canvas {
  display: block;
  margin: 1rem auto 0;
  max-width: 280px;
  height: auto !important;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px;
}

/* Diff view (text diff checker) */
.diff-view {
  margin: 1rem 0 0;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  font-family: var(--mono);
  font-size: 0.85rem;
  line-height: 1.55;
  overflow-x: auto;
  white-space: pre;
}
.diff-view span { display: block; }
.diff-add { background: var(--green-bg); color: var(--green); }
.diff-del { background: var(--red-bg); color: var(--red); }

/* Markdown preview */
.md-preview {
  min-height: 300px;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  overflow-wrap: break-word;
}
.md-preview > :first-child { margin-top: 0; }
.md-preview h1, .md-preview h2, .md-preview h3,
.md-preview h4, .md-preview h5, .md-preview h6 { line-height: 1.25; margin: 1.1rem 0 0.5rem; }
.md-preview h1 { font-size: 1.6rem; }
.md-preview h2 { font-size: 1.35rem; }
.md-preview h3 { font-size: 1.15rem; }
.md-preview p { margin: 0.6rem 0; }
.md-preview ul, .md-preview ol { padding-left: 1.4rem; margin: 0.6rem 0; }
.md-preview li { margin: 0.2rem 0; }
.md-preview code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 0.08em 0.35em;
}
.md-preview pre {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem;
  overflow-x: auto;
}
.md-preview pre code { background: none; border: 0; padding: 0; }
.md-preview blockquote {
  margin: 0.6rem 0;
  padding: 0.2rem 0 0.2rem 1rem;
  border-left: 3px solid var(--accent);
  color: var(--muted);
}
.md-preview img { max-width: 100%; border-radius: 8px; }
.md-preview hr { border: 0; border-top: 1px solid var(--border); margin: 1.2rem 0; }
.md-preview table { border-collapse: collapse; }
.md-preview a { color: var(--accent); }

/* PDF download link */
#download-pdf { margin-top: 1rem; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding: 1.75rem 0 2.25rem;
  margin-top: 2rem;
  font-size: 0.9rem;
  color: var(--muted);
}
.site-footer nav { display: flex; gap: 0.9rem 1.2rem; flex-wrap: wrap; margin: 0.75rem 0; }
.site-footer a { color: var(--muted); }
.site-footer .privacy-note { font-weight: 600; color: var(--text); }

@media (max-width: 800px) {
  .panes { grid-template-columns: 1fr; }
  h1 { font-size: 1.5rem; }
  textarea { min-height: 200px; }
  .result .thumb { width: 42px; height: 42px; }
}