/*
 * main.css — DevConvert
 *
 * A single stylesheet, no build step, no framework. Colours are defined once as
 * custom properties on :root and re-declared for dark mode, so every component
 * below is written against tokens rather than literal colours.
 *
 * Accessibility notes baked in here:
 *  - focus is always visible (:focus-visible outline, never outline:none)
 *  - diff and error states carry a glyph as well as a colour
 *  - every animation is disabled under prefers-reduced-motion
 *  - text/background pairs are chosen for at least 4.5:1 contrast
 */

/* ------------------------------------------------------------------ *
 * Tokens
 * ------------------------------------------------------------------ */

:root {
  color-scheme: light dark;

  --bg: #f6f7f9;
  --bg-raised: #ffffff;
  --bg-sunken: #eceef2;
  --bg-inset: #f9fafb;
  --border: #d5d9e0;
  --border-strong: #b6bcc7;

  --text: #16181d;
  --text-muted: #5b616e;
  --text-faint: #7c828f;

  --accent: #1f5fd0;
  --accent-hover: #174aa6;
  --accent-contrast: #ffffff;
  --accent-soft: #e5edfb;

  --success: #0f6f45;
  --success-soft: #e2f4ec;
  --warning: #8a5300;
  --warning-soft: #fbf0dd;
  --danger: #ab2020;
  --danger-soft: #fbe6e6;

  --add-bg: #e3f6e9;
  --add-border: #7bbf95;
  --remove-bg: #fce8e8;
  --remove-border: #d79797;
  --mark-bg: #ffe9a8;
  --mark-text: #3d2c00;

  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 2px rgb(15 20 30 / 8%), 0 8px 24px rgb(15 20 30 / 8%);
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #12141a;
    --bg-raised: #1a1d25;
    --bg-sunken: #0e1015;
    --bg-inset: #16191f;
    --border: #2c313c;
    --border-strong: #3f4655;

    --text: #e8eaee;
    --text-muted: #a3a9b6;
    --text-faint: #858c9a;

    --accent: #6ea3ff;
    --accent-hover: #8ab6ff;
    --accent-contrast: #0d1017;
    --accent-soft: #1c2740;

    --success: #4fc48c;
    --success-soft: #16291f;
    --warning: #e0a54a;
    --warning-soft: #2b2114;
    --danger: #ef7d7d;
    --danger-soft: #2d1717;

    --add-bg: #14301f;
    --add-border: #3f7d57;
    --remove-bg: #331818;
    --remove-border: #8a4a4a;
    --mark-bg: #4d3c00;
    --mark-text: #ffeeb4;

    --shadow: 0 1px 2px rgb(0 0 0 / 40%), 0 8px 24px rgb(0 0 0 / 35%);
  }
}

:root[data-theme="dark"] {
  --bg: #12141a;
  --bg-raised: #1a1d25;
  --bg-sunken: #0e1015;
  --bg-inset: #16191f;
  --border: #2c313c;
  --border-strong: #3f4655;

  --text: #e8eaee;
  --text-muted: #a3a9b6;
  --text-faint: #858c9a;

  --accent: #6ea3ff;
  --accent-hover: #8ab6ff;
  --accent-contrast: #0d1017;
  --accent-soft: #1c2740;

  --success: #4fc48c;
  --success-soft: #16291f;
  --warning: #e0a54a;
  --warning-soft: #2b2114;
  --danger: #ef7d7d;
  --danger-soft: #2d1717;

  --add-bg: #14301f;
  --add-border: #3f7d57;
  --remove-bg: #331818;
  --remove-border: #8a4a4a;
  --mark-bg: #4d3c00;
  --mark-text: #ffeeb4;

  --shadow: 0 1px 2px rgb(0 0 0 / 40%), 0 8px 24px rgb(0 0 0 / 35%);
}

/* ------------------------------------------------------------------ *
 * Base
 * ------------------------------------------------------------------ */

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

/*
 * The `hidden` attribute must win.
 *
 * The UA stylesheet gives [hidden] `display: none`, but any class rule that
 * sets `display` outranks it on specificity — so `.field { display: flex }`
 * silently re-showed every option the format selectors had just hidden. One
 * rule here beats hunting that down per component.
 */
[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.55;
}

body.has-dialog { overflow: hidden; }

h1, h2, h3 { line-height: 1.25; margin: 0 0 .4em; }
h1 { font-size: 1.6rem; letter-spacing: -.015em; }
h2 { font-size: 1.1rem; }
h3 { font-size: .82rem; }
p { margin: 0 0 .8em; }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--accent-hover); }

code, kbd, pre, .mono, textarea.editor { font-family: var(--mono); font-size: .86em; }

kbd {
  border: 1px solid var(--border-strong);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: .05em .38em;
  background: var(--bg-inset);
  color: var(--text-muted);
  font-size: .74rem;
  white-space: nowrap;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 3px;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--accent);
  color: var(--accent-contrast);
  padding: .6em 1em;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

/* ------------------------------------------------------------------ *
 * Header
 * ------------------------------------------------------------------ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--bg-raised);
  border-bottom: 1px solid var(--border);
}

.site-header__inner {
  max-width: 1500px;
  margin: 0 auto;
  padding: .55rem 1rem;
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: .45rem;
  font-weight: 650;
  font-size: 1.02rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -.01em;
}
.brand__mark { color: var(--accent); font-size: 1.15rem; }

.search-trigger {
  flex: 1 1 200px;
  max-width: 340px;
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .38rem .6rem;
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font: inherit;
  font-size: .85rem;
  cursor: pointer;
}
.search-trigger:hover { border-color: var(--border-strong); color: var(--text); }
.search-trigger__label { flex: 1; text-align: left; }
.search-trigger__kbd {
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0 .3em;
  font-size: .7rem;
}

.privacy-badge {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .22rem .6rem;
  border-radius: 999px;
  background: var(--success-soft);
  color: var(--success);
  font-size: .78rem;
  font-weight: 600;
  border: 1px solid color-mix(in srgb, var(--success) 30%, transparent);
}
.privacy-badge__dot {
  width: .5em; height: .5em;
  border-radius: 50%;
  background: currentcolor;
}

.site-header__actions { display: flex; gap: .35rem; margin-left: auto; }

/* ------------------------------------------------------------------ *
 * Layout
 * ------------------------------------------------------------------ */

.layout {
  flex: 1;
  width: 100%;
  max-width: 1500px;
  margin: 0 auto;
  padding: 1.1rem 1rem 2rem;
  display: grid;
  grid-template-columns: 232px minmax(0, 1fr);
  gap: 1.4rem;
  align-items: start;
}

.tool-nav {
  position: sticky;
  top: 4.2rem;
  max-height: calc(100vh - 5.5rem);
  overflow-y: auto;
  padding-right: .3rem;
}
.tool-nav__title { font-size: .74rem; text-transform: uppercase; letter-spacing: .09em; color: var(--text-faint); }
.tool-nav__group { margin-bottom: 1rem; }
.tool-nav__heading {
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-faint);
  margin: 0 0 .3rem;
}
.tool-nav__list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 1px; }
.tool-nav__list a {
  display: block;
  padding: .3rem .55rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  text-decoration: none;
  font-size: .87rem;
  border-left: 2px solid transparent;
}
.tool-nav__list a:hover { background: var(--bg-sunken); color: var(--text); }
.tool-nav__list a[aria-current="page"] {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
  border-left-color: var(--accent);
}

.workspace { min-width: 0; }

/* ------------------------------------------------------------------ *
 * Tool head
 * ------------------------------------------------------------------ */

.tool-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .5rem 1rem;
  margin-bottom: .9rem;
}
.tool-head__title { flex: 0 0 auto; margin: 0; }
.tool-head__description { flex: 1 1 300px; margin: 0; color: var(--text-muted); font-size: .92rem; }
.tool-head__swap { flex: 0 0 auto; text-decoration: none; }

.banner {
  margin: 0 0 .9rem;
  padding: .6rem .8rem;
  border-radius: var(--radius-sm);
  border-left: 3px solid;
  font-size: .88rem;
}
.banner--warning { background: var(--warning-soft); border-color: var(--warning); color: var(--warning); }
.banner--info { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }

/* ------------------------------------------------------------------ *
 * Options
 * ------------------------------------------------------------------ */

.options { margin-top: 1rem; }
.options__wrapper {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.options__wrapper > summary {
  cursor: pointer;
  padding: .5rem .8rem;
  font-weight: 600;
  font-size: .85rem;
  list-style-position: inside;
}
.options__form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: .7rem .9rem;
  padding: 0 .8rem .8rem;
}
.options__empty { color: var(--text-faint); font-size: .85rem; margin: 0; }

.field { display: flex; flex-direction: column; gap: .22rem; min-width: 0; }
.field > label { font-size: .78rem; font-weight: 600; color: var(--text-muted); }
.field--checkbox { justify-content: flex-end; }
.field--checkbox > label { font-weight: 500; color: var(--text); display: flex; align-items: center; gap: .1rem; }
.field__help { font-size: .74rem; color: var(--text-faint); }

.field__group {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .4rem .6rem .5rem;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: .15rem;
}
.field__group legend { font-size: .78rem; font-weight: 600; color: var(--text-muted); padding: 0 .3em; }
.field__group--inline { flex-direction: row; flex-wrap: wrap; gap: .1rem .7rem; }
.field__choice { font-size: .85rem; display: flex; align-items: center; gap: .15rem; }
.field__choice--flag { font-family: var(--mono); }

input[type="text"],
input[type="number"],
input[type="search"],
select,
textarea {
  font: inherit;
  color: var(--text);
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .34rem .5rem;
  min-width: 0;
}
input[type="text"]:hover, select:hover { border-color: var(--border-strong); }
input[type="checkbox"] { accent-color: var(--accent); width: 1em; height: 1em; }

/* ------------------------------------------------------------------ *
 * Buttons
 * ------------------------------------------------------------------ */

.button {
  font: inherit;
  font-size: .85rem;
  font-weight: 550;
  line-height: 1.3;
  padding: .38rem .8rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-raised);
  color: var(--text);
  cursor: pointer;
  white-space: nowrap;
  transition: background-color .12s ease, border-color .12s ease;
}
.button:hover { background: var(--bg-sunken); border-color: var(--border-strong); }
.button:active { transform: translateY(1px); }
.button[aria-busy="true"] { opacity: .65; cursor: progress; }

.button--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast);
  padding-inline: 1.2rem;
}
.button--primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }

.button--ghost { background: transparent; border-color: transparent; color: var(--text-muted); }
.button--ghost:hover { background: var(--bg-sunken); color: var(--text); border-color: var(--border); }

.button--small { font-size: .78rem; padding: .22rem .55rem; }
.button--tiny { font-size: .72rem; padding: .15rem .45rem; border-color: transparent; background: transparent; color: var(--text-muted); }
.button--tiny:hover { border-color: var(--border); }
.button--icon { padding: .2rem .5rem; background: transparent; border-color: transparent; font-size: 1rem; }
.button--danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, transparent); background: transparent; }
.button--danger:hover { background: var(--danger-soft); }

/* ------------------------------------------------------------------ *
 * Panes
 * ------------------------------------------------------------------ */

.panes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}
/*
 * Three-pane tools (diff) put the two inputs side by side and give the result
 * the full width underneath: a diff table squeezed into a third of the screen
 * wraps every line and becomes unreadable.
 */
.panes--three { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.panes--three .pane--output { grid-column: 1 / -1; }

.pane {
  display: flex;
  flex-direction: column;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  min-width: 0;
}
.pane.is-dropping { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.app-root.is-dropping { outline: 2px dashed var(--accent); outline-offset: 6px; border-radius: var(--radius); }

.pane__head {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .45rem .6rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-inset);
}
.pane__title { margin: 0; font-size: .82rem; font-weight: 650; letter-spacing: .01em; }
.pane__tools { margin-left: auto; display: flex; gap: .2rem; }

.pane__foot {
  display: flex;
  gap: .8rem;
  padding: .3rem .6rem;
  border-top: 1px solid var(--border);
  background: var(--bg-inset);
  font-size: .74rem;
  color: var(--text-faint);
}
.pane__meta { white-space: nowrap; }

.detection { margin-left: auto; font-weight: 600; color: var(--text-muted); }

/* ------------------------------------------------------------------ *
 * Format selectors — the pane headers double as the format pickers
 * ------------------------------------------------------------------ */

.format-select { display: flex; align-items: center; }

/* Same resting chrome as the Example/Upload buttons beside it, so the pane
   header reads as one row of controls rather than a label that happens to
   open a menu. */
.format-select__control {
  font: inherit;
  font-size: .82rem;
  font-weight: 650;
  letter-spacing: .01em;
  padding: .22rem 1.5rem .22rem .5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background-color: var(--bg-raised);
  color: var(--text);
  cursor: pointer;
  transition: background-color .12s ease, border-color .12s ease;
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, currentcolor 50%),
                    linear-gradient(135deg, currentcolor 50%, transparent 50%);
  background-position: right .7rem center, right .44rem center;
  background-size: .3rem .3rem, .3rem .3rem;
  background-repeat: no-repeat;
}
.format-select__control:hover {
  background-color: var(--bg-sunken);
  border-color: var(--border-strong);
}

.editor,
.output {
  min-height: 340px;
  max-height: 62vh;
  overflow: auto;
  padding: .6rem .7rem;
  background: var(--bg-raised);
  border: 0;
  border-radius: 0;
  resize: vertical;
  line-height: 1.5;
  tab-size: 2;
}
.editor { white-space: pre; }
.editor:focus-visible { outline-offset: -2px; }

.output { white-space: pre; }
.output--wrap, .output--wrap .output__text { white-space: pre-wrap; word-break: break-word; }
.output__text { margin: 0; font-family: var(--mono); }
.output__placeholder { color: var(--text-faint); font-style: italic; margin: 0; }

.suggestion {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .4rem;
  padding: .4rem .6rem;
  border-top: 1px solid var(--border);
  background: var(--accent-soft);
  font-size: .82rem;
  color: var(--text);
}

/* ------------------------------------------------------------------ *
 * Run bar & status
 * ------------------------------------------------------------------ */

.run-bar {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin: .9rem 0 .6rem;
  flex-wrap: wrap;
}
.run-bar__kbd { font-size: .72rem; }
.run-bar .status { flex: 1 1 16rem; margin: 0; }

.status {
  border-radius: var(--radius-sm);
  padding: .55rem .75rem;
  font-size: .85rem;
  border-left: 3px solid var(--border-strong);
  background: var(--bg-raised);
  min-height: 2.4rem;
}
.status--success { border-color: var(--success); background: var(--success-soft); color: var(--success); }
.status--warning { border-color: var(--warning); background: var(--warning-soft); color: var(--warning); }
.status--error { border-color: var(--danger); background: var(--danger-soft); color: var(--danger); }
.status--info { color: var(--text-muted); }
.status__message { margin: 0; font-weight: 600; }
.status__detail { margin: .2rem 0 0; font-weight: 400; }
.status__icon { font-weight: 700; }
.related { margin-top: 1.2rem; font-size: .88rem; }
.related h2 { font-size: .82rem; text-transform: uppercase; letter-spacing: .07em; color: var(--text-faint); }
.related ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .3rem .8rem; }


/* ------------------------------------------------------------------ *
 * Details output (timestamp, case converter, JWT claims)
 * ------------------------------------------------------------------ */

.details { margin: 0; display: grid; grid-template-columns: auto minmax(0, 1fr); gap: .25rem .9rem; }
.details dt { font-size: .78rem; font-weight: 650; color: var(--text-muted); padding-top: .12rem; }
.details dd { margin: 0; display: flex; align-items: center; gap: .4rem; min-width: 0; }
.details__value {
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: .05rem .35rem;
  overflow-wrap: anywhere;
}

/* ------------------------------------------------------------------ *
 * Regex output
 * ------------------------------------------------------------------ */

.regex__summary { font-weight: 600; margin: 0 0 .5rem; font-size: .85rem; }
.regex__highlight {
  margin: 0 0 .8rem;
  padding: .5rem .6rem;
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  white-space: pre-wrap;
  word-break: break-word;
  font-family: var(--mono);
  max-height: 30vh;
  overflow: auto;
}
.regex__match {
  background: var(--mark-bg);
  color: var(--mark-text);
  border-radius: 2px;
  padding: 0 1px;
  /* Underline so a match is identifiable without relying on colour. */
  text-decoration: underline;
  text-decoration-thickness: 2px;
}

.regex__table, .diff__table { width: 100%; border-collapse: collapse; font-size: .8rem; }
.regex__table th, .diff__table th {
  text-align: left;
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-faint);
  border-bottom: 1px solid var(--border);
  padding: .25rem .4rem;
}
.regex__table td { padding: .25rem .4rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.regex__groups { list-style: none; margin: 0; padding: 0; }

/* ------------------------------------------------------------------ *
 * Diff output
 * ------------------------------------------------------------------ */

.diff__stats { display: flex; gap: .8rem; font-size: .8rem; margin: 0 0 .6rem; font-weight: 600; }
.diff__stat--add { color: var(--success); }
.diff__stat--remove { color: var(--danger); }

.diff__table { font-family: var(--mono); table-layout: fixed; }
.diff__num {
  width: 3.2em;
  text-align: right;
  padding: .05rem .4rem;
  color: var(--text-faint);
  user-select: none;
  font-size: .75rem;
  border-right: 1px solid var(--border);
}
.diff__cell {
  padding: .05rem .4rem;
  white-space: pre-wrap;
  word-break: break-word;
  vertical-align: top;
}
.diff__cell--add { background: var(--add-bg); border-left: 2px solid var(--add-border); }
.diff__cell--remove { background: var(--remove-bg); border-left: 2px solid var(--remove-border); }
.diff__cell--empty { background: var(--bg-sunken); }
.diff__marker { font-weight: 700; margin-right: .35em; }

.diff__unified { margin: 0; font-family: var(--mono); white-space: pre-wrap; word-break: break-word; }
.diff__line { display: block; }
.diff__line--add { background: var(--add-bg); }
.diff__line--remove { background: var(--remove-bg); }

/* ------------------------------------------------------------------ *
 * Command palette
 * ------------------------------------------------------------------ */

.palette, .drawer { position: fixed; inset: 0; z-index: 50; }
.palette__backdrop, .drawer__backdrop {
  position: absolute;
  inset: 0;
  background: rgb(8 10 15 / 45%);
}

.palette__panel {
  position: relative;
  max-width: 560px;
  margin: 8vh auto 0;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.palette__input {
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  padding: .8rem 1rem;
  font-size: 1rem;
  background: var(--bg-raised);
}
.palette__results {
  list-style: none;
  margin: 0;
  padding: .3rem;
  max-height: 52vh;
  overflow-y: auto;
}
.palette__item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0 .6rem;
  padding: .45rem .6rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.palette__item.is-active { background: var(--accent-soft); }
.palette__item-label { font-weight: 600; font-size: .9rem; }
.palette__item-category { font-size: .72rem; color: var(--text-faint); align-self: center; }
.palette__item-description { grid-column: 1 / -1; font-size: .78rem; color: var(--text-muted); }
.palette__empty { padding: .8rem; color: var(--text-faint); }
.palette__hint { margin: 0; padding: .4rem .8rem; border-top: 1px solid var(--border); font-size: .74rem; color: var(--text-faint); }

/* ------------------------------------------------------------------ *
 * Drawers
 * ------------------------------------------------------------------ */

.drawer__panel {
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: min(460px, 100%);
  background: var(--bg-raised);
  border-left: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}
.drawer__head {
  display: flex;
  align-items: center;
  padding: .7rem 1rem;
  border-bottom: 1px solid var(--border);
}
.drawer__head h2 { margin: 0; font-size: 1rem; }
.drawer__head .button--icon { margin-left: auto; }
.drawer__note { padding: .6rem 1rem 0; margin: 0; font-size: .8rem; color: var(--text-muted); }
.drawer__body { flex: 1; overflow-y: auto; padding: .8rem 1rem; }
.drawer__foot { padding: .7rem 1rem; border-top: 1px solid var(--border); }

.empty { color: var(--text-faint); font-style: italic; }

.history, .presets { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .7rem; }
.history__item, .presets__item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .5rem .65rem;
  display: flex;
  flex-direction: column;
  gap: .25rem;
  background: var(--bg-inset);
}
.history__head { display: flex; justify-content: space-between; gap: .5rem; align-items: baseline; font-size: .85rem; }
.history__time { font-size: .72rem; color: var(--text-faint); }
.history__preview {
  margin: 0;
  max-height: 5.4em;
  overflow: hidden;
  font-size: .75rem;
  color: var(--text-muted);
  white-space: pre-wrap;
  word-break: break-word;
}
.history__note { margin: 0; font-size: .72rem; color: var(--text-faint); }
.history__actions, .presets__actions { display: flex; gap: .3rem; }
.presets__tool, .presets__summary { font-size: .75rem; color: var(--text-faint); }

.preset-form { padding: .6rem 1rem 0; }
.preset-form label { font-size: .78rem; font-weight: 600; color: var(--text-muted); }
.preset-form__row { display: flex; gap: .4rem; margin-top: .2rem; }
.preset-form__row input { flex: 1; }

.settings { display: flex; flex-direction: column; gap: .8rem; }
.settings__row { display: flex; flex-direction: column; gap: .2rem; }
.settings__row > label { font-size: .88rem; display: flex; align-items: center; gap: .3rem; }
.settings__footprint { margin-top: 1rem; font-size: .78rem; color: var(--text-faint); }

/* ------------------------------------------------------------------ *
 * Toast
 * ------------------------------------------------------------------ */

.toast {
  position: fixed;
  left: 50%;
  bottom: 1.5rem;
  transform: translate(-50%, 1rem);
  z-index: 60;
  background: var(--text);
  color: var(--bg);
  padding: .5rem .9rem;
  border-radius: var(--radius-sm);
  font-size: .85rem;
  box-shadow: var(--shadow);
  opacity: 0;
  transition: opacity .18s ease, transform .18s ease;
  pointer-events: none;
}
.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }

/* ------------------------------------------------------------------ *
 * Static content (home + SEO shells)
 * ------------------------------------------------------------------ */

.intro { max-width: 62ch; }
.intro__lead { font-size: 1.02rem; color: var(--text-muted); }
.intro__privacy {
  padding: .6rem .8rem;
  background: var(--success-soft);
  border-left: 3px solid var(--success);
  border-radius: var(--radius-sm);
  color: var(--success);
  font-size: .9rem;
}
.intro__grid { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .35rem; }
.seo-body { max-width: 68ch; margin-top: 1.4rem; font-size: .92rem; color: var(--text-muted); }
.seo-body h2 { color: var(--text); margin-top: 1.2rem; }
.seo-body h3 { color: var(--text); font-size: .82rem; margin: 0 0 .3rem; }

/* Side-by-side sample input and output on the static landing pages. It has to
   collapse on a phone and never push the page sideways. */
.seo-example {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
  gap: .8rem;
  margin-top: .6rem;
}
.seo-example pre {
  margin: 0;
  padding: .6rem .7rem;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow-x: auto;
  font-size: .8rem;
  line-height: 1.45;
}
.seo-example code { font-family: var(--mono); }

.breadcrumb { margin-bottom: .7rem; font-size: .8rem; color: var(--text-faint); }
.breadcrumb ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .3rem;
}
.breadcrumb li + li::before { content: "›"; margin-right: .3rem; color: var(--text-faint); }
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--text); }
.breadcrumb [aria-current="page"] { color: var(--text); }

.legal { max-width: 70ch; margin: 2rem auto; padding: 0 1rem 3rem; }
.legal h1 { margin-bottom: .2em; }
.legal__template {
  background: var(--warning-soft);
  border-left: 3px solid var(--warning);
  color: var(--warning);
  padding: .7rem .9rem;
  border-radius: var(--radius-sm);
  font-size: .88rem;
}

/* ------------------------------------------------------------------ *
 * Footer
 * ------------------------------------------------------------------ */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-raised);
  margin-top: auto;
}
.site-footer__inner {
  max-width: 1500px;
  margin: 0 auto;
  padding: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: .8rem 2rem;
  align-items: start;
  font-size: .82rem;
  color: var(--text-muted);
}
.site-footer__privacy { flex: 1 1 460px; margin: 0; }
.site-footer__links { display: flex; gap: 1rem; flex-wrap: wrap; }

/* ------------------------------------------------------------------ *
 * Responsive
 * ------------------------------------------------------------------ */

@media (max-width: 1080px) {
  .layout { grid-template-columns: 1fr; }
  .tool-nav {
    position: static;
    max-height: none;
    border-bottom: 1px solid var(--border);
    padding-bottom: .8rem;
  }
  .tool-nav__list { flex-direction: row; flex-wrap: wrap; gap: .25rem; }
  .tool-nav__list a { border-left: 0; border: 1px solid var(--border); }
}

@media (max-width: 760px) {
  body { font-size: 15px; }
  .panes, .panes--three { grid-template-columns: 1fr; }
  .editor, .output { min-height: 220px; }
  .site-header__inner { padding: .5rem .7rem; }
  .search-trigger { order: 3; max-width: none; flex-basis: 100%; }
  .privacy-badge { font-size: .72rem; }
  .layout { padding: .8rem .7rem 2rem; }
  .options__form { grid-template-columns: 1fr; }
  .drawer__panel { width: 100%; }
  .details { grid-template-columns: 1fr; gap: .1rem; }
  .details dd { margin-bottom: .4rem; }
}

/* ------------------------------------------------------------------ *
 * Reduced motion
 * ------------------------------------------------------------------ */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .button:active { transform: none; }
  .toast { transform: translate(-50%, 0); }
}

/* ------------------------------------------------------------------ *
 * Print
 * ------------------------------------------------------------------ */

@media print {
  .site-header, .tool-nav, .run-bar, .pane__tools, .site-footer { display: none; }
  .panes { grid-template-columns: 1fr; }
  .editor, .output { max-height: none; }
}