/* PROJECT: Freelance_USA / PRODUCT: CSV Fixer — tool page styling */

:root {
  color-scheme: light dark;

  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #555555;
  --border: #cccccc;
  --panel-bg: #f7f7f7;
  --dropzone-bg: #fafafa;
  --dropzone-border: #999999;
  --dropzone-drag-bg: #e8f0fe;
  --dropzone-drag-border: #3367d6;
  --changed-bg: #fff3cd;
  --changed-fg: #1a1a1a;
  --ad-bg: #f0f0f0;
  --ad-border: #e0e0e0;
  --link: #1a5fb4;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16181c;
    --fg: #e6e6e6;
    --muted: #a3a3a3;
    --border: #3a3d44;
    --panel-bg: #1e2127;
    --dropzone-bg: #1b1e24;
    --dropzone-border: #5a5f68;
    --dropzone-drag-bg: #24303f;
    --dropzone-drag-border: #6a9cff;
    --changed-bg: #4a3f1a;
    --changed-fg: #ffe9a8;
    --ad-bg: #22252b;
    --ad-border: #30333a;
    --link: #7aa7ff;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html, body { max-width: 100%; overflow-x: hidden; }

body {
  font: 16px/1.5 system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  overflow-wrap: break-word;
}

#app {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px;
}

@media (max-width: 400px) {
  #app { padding: 16px; }
}

h1 { margin: 0 0 8px; }

.blurb {
  margin: 0 0 20px;
  color: var(--muted);
  max-width: 60ch;
}

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

/* --- Reserved ad slots: keep height so layout does not jump later --- */
.ad {
  min-height: 90px;
  margin: 16px 0;
  background: var(--ad-bg);
  border: 1px dashed var(--ad-border);
  border-radius: 6px;
}

/* --- Dropzone --- */
#dropzone {
  border: 2px dashed var(--dropzone-border);
  border-radius: 8px;
  background: var(--dropzone-bg);
  padding: 40px 24px;
  text-align: center;
  cursor: pointer;
  color: var(--muted);
  transition: background 0.12s ease, border-color 0.12s ease;
}

#dropzone:hover,
#dropzone:focus-visible {
  border-color: var(--dropzone-drag-border);
  outline: none;
}

#dropzone.dragover {
  background: var(--dropzone-drag-bg);
  border-style: solid;
  border-color: var(--dropzone-drag-border);
  color: var(--fg);
}

/* --- Detected info line --- */
#detected {
  margin: 16px 0;
  padding: 10px 12px;
  background: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  color: var(--fg);
}

/* --- Preview table --- */
.scroll {
  overflow-x: auto;
  max-width: 100%;
  margin: 16px 0;
}

#preview:empty { display: none; }

#preview table {
  border-collapse: collapse;
  white-space: nowrap;
  font: 13px/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

#preview th,
#preview td {
  border: 1px solid var(--border);
  padding: 4px 8px;
  text-align: left;
}

#preview th {
  background: var(--panel-bg);
  position: sticky;
  top: 0;
}

#preview td.changed {
  background: var(--changed-bg);
  color: var(--changed-fg);
}

/* --- Fixes panel --- */
#fixes {
  margin: 16px 0;
}

#fixes fieldset {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  margin: 0 0 16px;
  min-width: 0;
}

#fixes legend {
  padding: 0 6px;
  font-weight: 600;
}

#fixes label {
  display: block;
  margin: 8px 0;
}

#zeros-opts,
#date-order {
  margin: 8px 0 8px 24px;
  padding: 8px 12px;
  background: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
}

#zeros-opts label,
#date-order label {
  margin: 6px 0;
}

#date-order > span {
  display: block;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 14px;
}

#opts label {
  display: block;
  margin: 10px 0;
}

#opts select,
#zeros-col,
#zeros-width {
  margin-left: 6px;
  max-width: 100%;
}

/* --- Actions --- */
#actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 16px 0;
}

button {
  font: inherit;
  padding: 10px 18px;
  border: 1px solid var(--dropzone-drag-border);
  border-radius: 6px;
  background: var(--dropzone-drag-border);
  color: #ffffff;
  cursor: pointer;
}

button:hover:not(:disabled) { filter: brightness(1.08); }

/* --- Disabled controls look disabled --- */
button:disabled,
input:disabled,
select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

#fixes label:has(input:disabled) {
  opacity: 0.5;
  cursor: not-allowed;
}

/* --- Safety note --- */
#safety {
  margin: 24px 0 0;
  padding: 12px 16px;
  background: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  color: var(--fg);
  max-width: 60ch;
}

/* --- "Common CSV problems" list on the tool page --- */
#problems {
  margin: 24px 0 0;
  font-size: 14px;
}

#problems h2 {
  font-size: 1.1rem;
  margin: 0 0 8px;
}

#problems ul {
  margin: 0;
  padding-left: 20px;
}

#problems li { margin: 4px 0; }

/* --- SEO helper articles (site/fix/*.html) --- */
.article {
  max-width: 700px;
  margin: 0 auto;
  padding: 24px;
  line-height: 1.7;
}

@media (max-width: 400px) {
  .article { padding: 16px; }
}

.article h1 {
  line-height: 1.25;
  margin: 0 0 16px;
}

.article h2 {
  margin: 32px 0 8px;
  font-size: 1.2rem;
}

.article p { margin: 0 0 16px; }

.article ol,
.article ul { margin: 0 0 16px; padding-left: 22px; }

.article li { margin: 6px 0; }

.article code {
  font: 0.95em ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 5px;
}

.article .example {
  margin: 16px 0;
  padding: 12px 16px;
  background: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  font: 14px/1.6 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  overflow-x: auto;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.article .cta {
  margin: 24px 0;
  padding: 16px;
  background: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.article .cta p { margin: 0; }

.article .cta-button {
  display: inline-block;
  margin-top: 12px;
  padding: 10px 18px;
  border: 1px solid var(--dropzone-drag-border);
  border-radius: 6px;
  background: var(--dropzone-drag-border);
  color: #ffffff;
  text-decoration: none;
}

.article .cta-button:hover { filter: brightness(1.08); }

.article .back {
  margin: 24px 0 0;
  font-size: 14px;
}

.article .related {
  margin: 24px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  font-size: 14px;
}

.article .related strong { display: block; margin-bottom: 6px; }
.article .related ul { margin: 0; padding-left: 20px; }
.article .related li { margin: 4px 0; }