.tools-shell {
  width: min(calc(100% - 40px), 1080px);
  margin: 0 auto;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 var(--body);
  text-rendering: optimizeLegibility;
}

.tools-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.tools-header-row {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.tools-header-links {
  display: flex;
  align-items: center;
  gap: 24px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.tools-header .wordmark { color: var(--fg); text-decoration: none; }
.tools-header-links a { color: var(--fg); text-decoration: none; text-underline-offset: .3em; }
.tools-header-links a:hover { color: var(--accent-dark); }

.tools-main {
  min-height: 66vh;
  padding: clamp(56px, 8vw, 100px) 0 110px;
}

.tools-eyebrow,
.tools-card-label,
.converter-overline {
  color: var(--accent-dark);
  font: 700 11px/1.5 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.tools-eyebrow { margin: 0 0 22px; }

.tools-main h1 {
  max-width: 900px;
  margin: 0;
  font: 500 clamp(48px, 8vw, 88px)/.98 var(--display);
  letter-spacing: -.052em;
}

.tools-intro {
  max-width: 68ch;
  margin: 24px 0 0;
  color: var(--muted-strong);
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.65;
}

.tools-card {
  max-width: 760px;
  margin-top: clamp(46px, 8vw, 78px);
  padding: clamp(24px, 5vw, 42px);
  border: 1px solid var(--border);
  background: var(--surface);
  color: inherit;
  display: block;
  text-decoration: none;
  transition: border-color .16s ease, transform .16s ease;
}

.tools-card:hover { border-color: var(--accent-dark); transform: translateY(-2px); }
.tools-card:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
.tools-card-label { margin: 0; }
.tools-card h2 { margin: 15px 0 10px; font: 500 clamp(28px, 4vw, 40px)/1.1 var(--display); letter-spacing: -.035em; }
.tools-card p:last-child { margin: 0; color: var(--muted-strong); line-height: 1.65; }

.converter-main { max-width: 900px; }
.converter-overline { margin: 0 0 22px; }
.converter-overline a { color: inherit; }
.converter-main h1 { max-width: 820px; }
.converter-lead { max-width: 72ch; }
.tools-main code {
  padding: .08em .28em;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--fg);
  font-family: var(--mono);
  font-size: .9em;
}

.privacy-note {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 15px;
  align-items: start;
  margin: 32px 0 42px;
  padding: 19px 21px;
  border: 1px solid oklch(85% .065 152.83);
  background: var(--accent-pale);
  color: var(--fg);
}

.privacy-note svg { margin-top: 3px; color: var(--accent-dark); }
.privacy-note strong { display: block; font: 700 13px/1.5 var(--mono); letter-spacing: .02em; }
.privacy-note p { margin: 4px 0 0; color: var(--muted-strong); font-size: 14px; }

.converter-form { display: grid; gap: 28px; }
.direction-fieldset { min-width: 0; margin: 0; padding: 0; border: 0; }
.direction-legend,
.file-label,
.config-label { display: block; margin-bottom: 12px; font: 700 12px/1.5 var(--mono); letter-spacing: .045em; text-transform: uppercase; }

.direction-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.direction-option { position: relative; display: block; cursor: pointer; }
.direction-option input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.direction-option span {
  min-height: 82px;
  padding: 16px 18px;
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted-strong);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  transition: border-color .16s ease, background-color .16s ease, color .16s ease;
}

.direction-option input:checked + span { border-color: var(--accent-dark); background: var(--accent-pale); color: var(--fg); }
.direction-option input:focus-visible + span { outline: 3px solid var(--accent); outline-offset: 3px; }

.file-picker {
  min-height: 132px;
  padding: 26px;
  display: grid;
  align-content: center;
  gap: 7px;
  border: 1px dashed var(--muted);
  background: var(--surface);
  cursor: pointer;
}

.file-picker:hover { border-color: var(--accent-dark); }
.file-picker:focus-within { outline: 3px solid var(--accent); outline-offset: 3px; }
.file-picker strong { font-size: 16px; }
.file-picker span { color: var(--muted-strong); font-size: 14px; }
.file-picker input { width: 1px; height: 1px; position: absolute; opacity: 0; pointer-events: none; }
.input-hint { margin: 10px 0 0; color: var(--muted-strong); font-size: 13px; }

.config-choice { max-width: 520px; }
.config-choice[hidden] { display: none; }
.config-choice select {
  width: 100%;
  min-height: 48px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 0;
  background: var(--surface);
  color: var(--fg);
  font: 15px/1.4 var(--body);
}

.config-choice select:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.converter-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.converter-button {
  min-height: 48px;
  padding: 11px 20px;
  border: 1px solid var(--fg);
  background: var(--fg);
  color: white;
  font: 700 12px/1.2 var(--mono);
  letter-spacing: .04em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
}

.converter-button:hover:not(:disabled) { background: var(--accent-dark); border-color: var(--accent-dark); }
.converter-button:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.converter-button.secondary { background: transparent; color: var(--fg); }
.converter-button.secondary:hover:not(:disabled) { background: var(--accent-pale); color: var(--fg); }
.converter-button[hidden] { display: none; }
.converter-button:disabled { cursor: not-allowed; opacity: .45; }

.converter-status {
  min-height: 27px;
  margin: 0;
  color: var(--muted-strong);
  font-size: 14px;
}

.converter-status[data-state="error"] { color: oklch(48% .17 25); }
.converter-status[data-state="success"] { color: var(--accent-dark); }

.converter-privacy-details {
  max-width: 74ch;
  margin-top: 62px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.converter-privacy-details h2 { margin: 0 0 12px; font: 500 25px/1.25 var(--display); letter-spacing: -.025em; }
.converter-privacy-details p,
.converter-privacy-details li { color: var(--muted-strong); font-size: 14px; }
.converter-privacy-details ul { padding-left: 20px; }

.tools-skip {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 10;
  padding: 10px 14px;
  transform: translateY(-150%);
  background: var(--fg);
  color: white;
}

.tools-skip:focus { transform: translateY(0); }

@media (max-width: 680px) {
  .tools-header-row { min-height: 68px; gap: 12px; }
  .tools-header-links { gap: 15px; font-size: 10px; }
  .tools-header-row .wordmark-copy span { font-size: 9px; letter-spacing: .035em; }
  .tools-main { padding-top: 52px; padding-bottom: 78px; }
  .direction-options { grid-template-columns: 1fr; }
  .direction-option span { min-height: 64px; }
  .file-picker { min-height: 116px; padding: 20px; }
  .converter-actions { align-items: stretch; }
  .converter-button { flex: 1 1 auto; text-align: center; }
  .site-footer .footer-row { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 420px) {
  .tools-header-row { gap: 8px; }
  .tools-header-links { gap: 10px; font-size: 9px; letter-spacing: .02em; }
}

@media (max-width: 360px) {
  .tools-header-row .wordmark-copy span { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}