:root,
[data-theme="light"] {
  color-scheme: light;
  --paper: #f6f1e6;
  --card: #fffdf8;
  --surface: #fffaf3;
  --ink: #1b2430;
  --ink-soft: #5c6570;
  --line: #eadcc8;
  --line-strong: #d7c4aa;
  --teal: #0c6a66;
  --bar: #0c6a66;
  --on-bar: #f4fffd;
  --link: #0c5f78;
  --mark: #e07a3d;
  --chip: #f8ecdc;
  --hot: #e7f6f3;
  --danger: #8a3d32;
  --ok: #1d5c38;
  --print: #fff;
  --shadow: 0 16px 40px rgba(28, 72, 74, 0.08);
}

[data-theme="dark"] {
  color-scheme: dark;
  --paper: #101820;
  --card: #182430;
  --surface: #203040;
  --ink: #f6f1e8;
  --ink-soft: #c5d0d8;
  --line: #314556;
  --line-strong: #456070;
  --teal: #7ee0d2;
  --bar: #7ee0d2;
  --on-bar: #10211f;
  --link: #9ad7ea;
  --mark: #ffb07a;
  --chip: #2a3b4a;
  --hot: #1a3336;
  --danger: #f0b2a8;
  --ok: #b7e0c6;
  --print: #f7f3ec;
  --shadow: 0 18px 44px rgba(0, 0, 0, 0.35);
}

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

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  background:
    radial-gradient(720px 420px at 0% -10%, color-mix(in srgb, var(--teal) 22%, transparent), transparent 70%),
    radial-gradient(680px 460px at 100% -8%, color-mix(in srgb, var(--mark) 28%, transparent), transparent 68%),
    var(--paper);
  color: var(--ink);
  font-family: Nunito, "Segoe UI", sans-serif;
  font-size: 1.0625rem;
  line-height: 1.5;
}

body::before {
  content: "";
  display: block;
  height: 7px;
  background: linear-gradient(90deg, var(--teal), var(--mark));
}

.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 5;
  padding: 0.4rem 0.7rem;
  border-radius: 8px;
  background: var(--bar);
  color: var(--on-bar);
}

.skip:focus {
  top: 0.6rem;
}

.wrap {
  width: min(980px, calc(100% - 2rem));
  margin: 0 auto;
}

.site {
  padding-top: 0.35rem;
}

.mast {
  display: flex;
  justify-content: flex-end;
  width: min(980px, calc(100% - 2rem));
  margin: 0 auto;
  padding-top: 0.85rem;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: 0.92rem;
  padding: 0.35rem 0.85rem 0.35rem 0.55rem;
  cursor: pointer;
}

.theme-toggle::before {
  content: "";
  width: 0.72rem;
  height: 0.72rem;
  border-radius: 50%;
  background: var(--mark);
}

.theme-toggle:hover {
  border-color: var(--line-strong);
}

.header-copy {
  text-align: center;
  padding-top: 0.2rem;
}

.brand {
  margin: 0;
  font-family: Newsreader, Georgia, serif;
  font-size: 2.15rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
}

.brand span {
  color: var(--teal);
  font-style: italic;
}

a.brand {
  color: inherit;
  text-decoration: none;
}

.tools {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.45rem;
  margin: 1rem 0 0;
}

.tools a {
  display: inline-flex;
  align-items: center;
  padding: 0.38rem 0.78rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--card) 86%, transparent);
  color: var(--ink);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 700;
}

.tools a:hover {
  border-color: var(--line-strong);
}

.tools a[aria-current="page"] {
  background: var(--bar);
  border-color: var(--bar);
  color: var(--on-bar);
}

[data-theme="dark"] .tools a[aria-current="page"],
[data-theme="dark"] .choices button[aria-checked="true"] {
  background: var(--bar);
  border-color: var(--bar);
  color: var(--on-bar);
}

h1 {
  max-width: 16ch;
  margin: 1rem auto 0.7rem;
  font-family: Newsreader, Georgia, serif;
  font-weight: 700;
  font-size: clamp(2.5rem, 6vw, 4rem);
  letter-spacing: -0.045em;
  line-height: 0.98;
}

.lede {
  max-width: 40rem;
  margin: 0 auto;
  color: var(--ink-soft);
  font-size: 1.08rem;
}

.rule {
  width: 5.5rem;
  height: 5px;
  margin: 1.2rem auto 1.45rem;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--teal), var(--mark));
}

.tool {
  position: relative;
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 1rem;
  box-shadow: var(--shadow);
}

.tool::before {
  content: "";
  display: block;
  height: 6px;
  margin: -1rem -1rem 1rem;
  background: linear-gradient(90deg, var(--teal), var(--mark));
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  margin-bottom: 0.9rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-left: auto;
}

.btn {
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: 0.95rem;
  font-weight: 800;
  padding: 0.48rem 0.95rem;
  cursor: pointer;
}

.btn:hover:not(:disabled) {
  border-color: var(--ink-soft);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-primary {
  border-color: var(--bar);
  background: var(--bar);
  color: var(--on-bar);
}

.quality,
.field {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.quality input[type="range"] {
  width: 8.5rem;
  accent-color: var(--teal);
}

#quality-value {
  min-width: 2.6rem;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.choices {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.choices button {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: 0.92rem;
  padding: 0.32rem 0.7rem;
  cursor: pointer;
}

.choices button[aria-checked="true"] {
  background: var(--bar);
  border-color: var(--bar);
  color: var(--on-bar);
  font-weight: 800;
}

input[type="number"],
select {
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: 0.95rem;
  padding: 0.35rem 0.5rem;
}

input[type="number"] {
  width: 6rem;
}

.drop {
  position: relative;
  display: grid;
  place-items: center;
  gap: 0.35rem;
  min-height: 15rem;
  padding: 1.6rem 1rem 1.4rem;
  border: 2px dashed color-mix(in srgb, var(--teal) 62%, var(--line-strong));
  border-radius: 22px;
  background:
    radial-gradient(420px 180px at 50% 0%, color-mix(in srgb, var(--teal) 16%, transparent), transparent 70%),
    var(--surface);
  text-align: center;
  cursor: pointer;
}

.drop::before {
  content: "";
  width: 4.4rem;
  height: 4.4rem;
  border-radius: 1.2rem;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f4fffd' stroke-width='1.8' stroke-linejoin='round'%3E%3Cpath d='M4.5 8.2h3.1l1.4-2h6l1.4 2h3.1v10.2h-15z'/%3E%3Ccircle cx='12' cy='13' r='3.1'/%3E%3C/svg%3E") center 58% / 2.15rem no-repeat,
    var(--teal);
  box-shadow: 0 10px 22px color-mix(in srgb, var(--teal) 28%, transparent);
}

[data-theme="dark"] .drop::before {
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2310211f' stroke-width='1.8' stroke-linejoin='round'%3E%3Cpath d='M4.5 8.2h3.1l1.4-2h6l1.4 2h3.1v10.2h-15z'/%3E%3Ccircle cx='12' cy='13' r='3.1'/%3E%3C/svg%3E") center 58% / 2.15rem no-repeat,
    var(--teal);
}

.drop:hover,
.drop.is-hot {
  border-color: var(--mark);
  background:
    radial-gradient(420px 180px at 50% 0%, color-mix(in srgb, var(--mark) 18%, transparent), transparent 70%),
    var(--hot);
}

.drop input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.drop-title {
  font-family: Newsreader, Georgia, serif;
  font-size: 1.7rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.drop-hint {
  color: var(--ink-soft);
}

.summary {
  min-height: 1.5rem;
  margin: 0.85rem 0 0;
  color: var(--ink-soft);
}

.results:empty {
  display: none;
}

.file {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr) auto;
  gap: 0.85rem;
  align-items: center;
  padding: 0.8rem 0;
  border-top: 1px solid var(--line);
}

.file img,
.file .thumb {
  width: 76px;
  height: 76px;
  border-radius: 8px;
  border: 4px solid var(--print);
  background: var(--chip);
  object-fit: cover;
  box-shadow: 0 8px 16px rgba(16, 40, 48, 0.16);
}

.file h2,
.file p {
  margin: 0;
}

.file h2 {
  font-family: Nunito, "Segoe UI", sans-serif;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.file .meta,
.file .note {
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.file .note {
  margin-top: 0.15rem;
}

.file.is-error h2 {
  color: var(--danger);
}

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

.notes,
.related,
.page {
  width: min(42rem, calc(100% - 2rem));
  margin: 1.15rem auto 0;
  padding: 1.3rem 1.45rem 1.2rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.notes {
  border-top: 5px solid var(--teal);
}

.related {
  margin-bottom: 1rem;
}

.notes h2,
.related h2,
.page h2 {
  margin: 1.2rem 0 0.35rem;
  font-family: Newsreader, Georgia, serif;
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.notes h2:first-child,
.related h2:first-child,
.page h1 {
  margin-top: 0;
}

.page h1 {
  max-width: none;
  margin-bottom: 0.8rem;
  font-size: clamp(2rem, 4vw, 2.7rem);
  text-align: center;
}

.notes ol,
.notes ul,
.page ul {
  margin: 0.5rem 0 0;
  padding-left: 1.2rem;
}

.notes li + li,
.page li + li {
  margin-top: 0.35rem;
}

.notes p,
.notes li,
.related a,
.page p,
.page li,
.site-foot p {
  color: var(--ink-soft);
}

.faq {
  margin: 0.4rem 0 0;
}

.faq dt {
  margin-top: 0.8rem;
  font-weight: 600;
  color: var(--ink);
}

.faq dd {
  margin: 0.2rem 0 0;
  color: var(--ink-soft);
}

.related ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.8rem;
  margin: 0.7rem 0 0;
  padding: 0;
  list-style: none;
}

.notes a,
.related a,
.page a,
.file a {
  color: var(--link);
}

.site-foot {
  padding: 1.2rem 0 2rem;
  text-align: center;
}

.foot-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem 1.1rem;
  margin: 0 0 0.7rem;
}

.foot-nav a {
  color: var(--ink-soft);
}

.site-foot p {
  margin: 0.2rem 0 0;
  font-size: 0.92rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 2px;
}

::selection {
  background: color-mix(in srgb, var(--mark) 35%, white);
  color: var(--ink);
}

@media (max-width: 720px) {
  h1 {
    font-size: 2.45rem;
  }

  .drop-title {
    font-size: 1.35rem;
  }

  .actions {
    margin-left: 0;
  }

  .file {
    grid-template-columns: 64px minmax(0, 1fr);
  }

  .file .btn {
    grid-column: 2;
    justify-self: start;
  }

  .file img,
  .file .thumb {
    width: 64px;
    height: 64px;
  }
}