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@charset "UTF-8";
*,
:before,
::before,
:after,
::after {
  box-sizing: border-box;
}

* {
  border: 0;
  border-radius: 0;
  margin: 0;
  outline: 0;
  padding: 0;
}

a,
blockquote,
button,
code,
div,
figcaption,
h1,
h2,
h3,
input[type=email],
input[type=text],
input[type=password],
li,
ol,
option,
p,
pre,
select,
span,
strong,
sub,
sup,
td,
textarea,
th,
ul {
  color: #1f1f1f;
}

a,
blockquote,
body,
br,
button,
code,
div,
figure,
figcaption,
h1,
h2,
h3,
html,
iframe,
img,
input,
li,
ol,
option,
p,
pre,
select,
span,
strong,
sub,
sup,
table,
tbody,
td,
th,
thead,
tr,
ul {
  -webkit-appearance: none;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  font-size: 100%;
  vertical-align: baseline;
}

html,
body {
  overflow: hidden;
}

body {
  font-family: "JetBrains Mono", "SF Mono", "Fira Code", monospace;
  font-size: 0;
  line-height: 1;
  -webkit-text-size-adjust: 100%;
}

a {
  background: transparent;
  font-size: 0;
  margin: 0;
  padding: 0;
  text-decoration: none;
  vertical-align: baseline;
}

p a {
  font-size: 100%;
  font-weight: bold;
}

strong {
  font-size: 100%;
  vertical-align: baseline;
}

sub,
sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sub {
  bottom: -0.25em;
}

sup {
  top: -0.5em;
}

img {
  font-size: 0;
  max-width: 100%;
}

svg {
  border: 0;
  stroke-width: 0;
}

ol,
ul {
  list-style: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

td,
th {
  text-align: left;
  white-space: nowrap;
  word-break: break-all;
}

th {
  font-weight: bold;
}

blockquote {
  quotes: none;
}

blockquote::after,
blockquote::before {
  content: "";
}

pre code {
  font-family: ui-monospace, "SFMono-Regular", "SF Mono", Consolas, Menlo, "Liberation Mono", monospace;
}

input[type=text] {
  background-color: transparent;
}

input[type=file],
input[type=checkbox] {
  display: none;
}

textarea {
  background-color: transparent;
  resize: vertical;
  text-rendering: optimizeLegibility;
  width: 100%;
  overflow-y: scroll;
  overflow-anchor: none;
}

button {
  cursor: pointer;
  background-color: transparent;
  font-family: inherit;
}

::-webkit-scrollbar {
  display: none;
}

::-webkit-calendar-picker-indicator {
  display: none;
}

::-webkit-resizer {
  display: none;
}

iframe {
  display: block;
  max-width: 100%;
}

.calculator-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 420px;
  margin: auto;
  padding: 16px 0;
}

.calculator {
  width: 100%;
  max-width: 420px;
  border-radius: 12px;
  overflow: hidden;
  background: #1a1a1e;
  color: #e8e8ec;
  font-family: "JetBrains Mono", "SF Mono", "Fira Code", monospace;
}

.calculator__mode-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
}

.calculator__mode-button {
  flex: none;
  padding: 4px 12px;
  border: none;
  border-radius: 4px;
  background: #22222a;
  color: #888890;
  font-family: "JetBrains Mono", "SF Mono", "Fira Code", monospace;
  font-size: 0.8rem;
  cursor: pointer;
}

.calculator__mode-button--active {
  background: #c46a10;
  color: #ffffff;
}

.calculator__angle-button {
  flex: none;
  padding: 4px 10px;
  border: none;
  border-radius: 4px;
  background: #22222a;
  color: #888890;
  font-family: "JetBrains Mono", "SF Mono", "Fira Code", monospace;
  font-size: 0.75rem;
  cursor: pointer;
}

.calculator__angle-button--active {
  background: #2a4a6b;
  color: #a0d0ff;
}

.calculator__list-button {
  flex: none;
  margin-left: auto;
  padding: 4px 12px;
  border: none;
  border-radius: 4px;
  background: #22222a;
  color: #888890;
  font-family: "JetBrains Mono", "SF Mono", "Fira Code", monospace;
  font-size: 0.8rem;
  cursor: pointer;
}

.calculator__memory-indicator {
  color: #c46a10;
  font-size: 0.7rem;
  font-weight: bold;
}

.calculator__display {
  padding: 16px 20px 12px;
  background: #0f0f12;
  text-align: right;
}

.calculator__history {
  min-height: 1.2em;
  margin-bottom: 4px;
  color: #666670;
  font-size: 0.85rem;
}

.calculator__value {
  overflow-x: auto;
  color: #e8e8ec;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: -0.5px;
  white-space: nowrap;
}

.calculator__value--small {
  font-size: 2rem;
}

.calculator__value--medium {
  font-size: 2.4rem;
}

.calculator__value--large {
  font-size: 3rem;
}

.calculator__scientific {
  padding: 6px 8px 2px;
}

.calculator__row {
  display: flex;
  gap: 4px;
  margin-bottom: 4px;
}

.calculator__main {
  padding: 6px 8px 8px;
}

.calculator-links {
  width: 100%;
  margin-top: 12px;
  padding: 12px 14px 14px;
  border-radius: 12px;
  background: #1a1a1e;
  font-family: "JetBrains Mono", "SF Mono", "Fira Code", monospace;
}

.calculator-links__title {
  margin-bottom: 10px;
  color: #888890;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
}

.calculator-links__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.calculator-links__item {
  padding: 6px 10px;
  border-radius: 4px;
  background: #22222a;
  color: #e8e8ec;
  font-size: 0.8rem;
  line-height: 1.4;
}

.calculator-links__all {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 9px 0;
  border-radius: 4px;
  background: #c46a10;
  color: #ffffff;
  font-family: "JetBrains Mono", "SF Mono", "Fira Code", monospace;
  font-size: 0.8rem;
  cursor: pointer;
}

.calculator-links__count {
  color: #ffffff;
  font-size: 0.7rem;
  opacity: 0.75;
}

.calculator__button {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px 0;
  border: none;
  border-radius: 8px;
  font-family: "JetBrains Mono", "SF Mono", "Fira Code", monospace;
  font-size: 1.15rem;
  line-height: 1.5;
  cursor: pointer;
  user-select: none;
  transition: background 0.12s, transform 0.08s;
}

.calculator__button--digit {
  background: #2a2a30;
  color: #e8e8ec;
  font-size: 1.5rem;
  font-weight: 500;
}

.calculator__button--operator {
  background: #c46a10;
  color: #ffffff;
  font-size: 1.3rem;
  font-weight: bold;
}

.calculator__button--clear {
  background: #6b2028;
  color: #ffbdc4;
  font-weight: 600;
}

.calculator__button--equals {
  background: #2a6b3a;
  color: #c0ffd0;
  font-size: 1.3rem;
  font-weight: bold;
}

.calculator__button--memory {
  padding: 10px 0;
  background: #22222a;
  color: #888890;
  font-size: 0.9rem;
}

.calculator__button--modifier {
  background: #22222a;
  color: #888890;
}

.calculator__button--function {
  padding: 10px 0;
  background: #22222a;
  color: #888890;
  font-size: 0.9rem;
}

.calculator__button--function-active {
  padding: 10px 0;
  background: #3a3a50;
  color: #a0a0ff;
  font-size: 0.9rem;
}

.calculator__button--constant {
  padding: 8px 0;
  background: #22222a;
  color: #888890;
  font-size: 0.95rem;
}

.calculator__tool {
  width: 100%;
  max-width: 560px;
}

.calculator__tool-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.calculator__tool-back,
.calculator__tool-list {
  padding: 8px 16px;
  border: 1px solid #1f1a14;
  background: transparent;
  user-select: none;
  transition: background 120ms ease;
}
.calculator__tool-back:hover,
.calculator__tool-list:hover {
  background: #1f1a14;
}
.calculator__tool-back > span,
.calculator__tool-list > span {
  color: #1f1a14;
  font-family: "JetBrains Mono", monospace;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.32em;
  transition: color 120ms ease;
}
.calculator__tool-back:hover > span,
.calculator__tool-list:hover > span {
  color: #fbf6e7;
}

.calculator__tool-title {
  margin-bottom: 12px;
  color: #1f1a14;
  font-family: "Fraunces", Georgia, serif;
  font-size: 28px;
  font-weight: 500;
  line-height: 1.4;
}

.calculator__tool-description {
  margin-bottom: 24px;
  color: #2b241b;
  font-family: "Fraunces", Georgia, serif;
  font-size: 16px;
  line-height: 1.75;
}

.calculator__tool-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 22px;
  border: 1px solid #1f1a14;
  background: #fbf6e7;
  box-shadow: 6px 6px 0 0 #1f1a14, inset 0 0 0 1px #fbf6e7;
}

.calculator__tool-field {
  position: relative;
  border: 1px solid #1f1a14;
  background: #fffcf1;
}
.calculator__tool-field::before {
  content: attr(data-label);
  position: absolute;
  top: -1px;
  left: -1px;
  padding: 4px 10px;
  background: #1f1a14;
  color: #fbf6e7;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
}

.calculator__tool-textarea {
  display: block;
  width: 100%;
  min-height: 110px;
  padding: 30px 14px 14px;
  background: transparent;
  color: #1f1a14;
  font-family: "JetBrains Mono", monospace;
  font-size: 14px;
  line-height: 1.7;
  resize: vertical;
}
.calculator__tool-textarea::placeholder {
  color: #9c8c73;
  font-style: italic;
}
.calculator__tool-textarea:focus {
  background: #fffae3;
}
.calculator__tool-textarea[readonly] {
  background: #f4ebd0;
  cursor: default;
}

.calculator__tool-button {
  padding: 14px 16px;
  border: 1px solid #1f1a14;
  background: #1f1a14;
  text-align: center;
  user-select: none;
  transition: transform 80ms ease, background 120ms ease;
}
.calculator__tool-button:hover {
  background: #6e2a1f;
}
.calculator__tool-button:active {
  transform: translate(2px, 2px);
}
.calculator__tool-button > span {
  color: #fbf6e7;
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.32em;
}
.calculator__tool-button > span::before {
  content: "▸  ";
  opacity: 0.7;
}

.calculator__article {
  margin-top: 44px;
  padding-top: 30px;
  border-top: 1px solid #1f1a14;
  font-size: 16px;
  line-height: 28px;
}

.calculator__article-label {
  margin-bottom: 24px;
  color: #6e5f49;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.32em;
}

.calculator__article-heading {
  position: relative;
  margin: 36px 0 14px;
  padding-left: 14px;
  color: #1f1a14;
  font-family: "Fraunces", Georgia, serif;
  font-size: 21px;
  font-weight: 500;
  line-height: 1.5;
}
.calculator__article-heading::before {
  content: "";
  position: absolute;
  top: 4px;
  bottom: 4px;
  left: 0;
  width: 1px;
  background-color: #1f1a14;
}

.calculator__article-subheading {
  margin: 28px 0 10px;
  color: #1f1a14;
  font-family: "Fraunces", Georgia, serif;
  font-size: 17px;
  font-weight: 500;
  line-height: 1.5;
}

.calculator__article-body {
  margin-bottom: calc(20px - 6px);
  color: #2b241b;
  font-family: "Fraunces", Georgia, serif;
  font-size: 16px;
  line-height: 28px;
}

.calculator__article-list {
  margin-bottom: 20px;
  padding-left: 0;
  list-style: none;
}
.calculator__article-list > li {
  position: relative;
  padding-left: 16px;
  color: #2b241b;
  font-family: "Fraunces", Georgia, serif;
  font-size: 16px;
  line-height: 28px;
}
.calculator__article-list > li::before {
  content: "";
  position: absolute;
  top: 13px;
  left: 2px;
  width: 2px;
  height: 2px;
  background-color: #6e5f49;
  border-radius: 50%;
}

ol.calculator__article-list {
  counter-reset: article-item;
}
ol.calculator__article-list > li {
  counter-increment: article-item;
}
ol.calculator__article-list > li::before {
  content: counter(article-item) ".";
  top: 0;
  left: 0;
  width: auto;
  height: auto;
  background-color: transparent;
  color: #6e5f49;
  font-family: "JetBrains Mono", monospace;
  font-size: 13px;
  border-radius: 0;
}

.calculator__article-math {
  overflow-x: auto;
  overflow-y: hidden;
  margin: 22px 0;
  padding: 18px 14px;
  border: 1px solid rgba(31, 26, 20, 0.08);
  background: #fffcf1;
  color: #1f1a14;
  font-size: 16px;
  line-height: normal;
}

.calculator__modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(31, 26, 20, 0.55);
}

.calculator__modal-content {
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 760px;
  height: 480px;
  max-height: 80vh;
  overflow: hidden;
  border: 1px solid #1f1a14;
  background: #fbf6e7;
  box-shadow: 6px 6px 0 0 #1f1a14;
}

.calculator__modal-header {
  display: flex;
  align-items: center;
  padding: 10px 12px;
  border-bottom: 1px solid #1f1a14;
  background: #f4ebd0;
}

.calculator__modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 1px solid #1f1a14;
  background: #fbf6e7;
  color: #1f1a14;
  font-family: "JetBrains Mono", monospace;
  font-size: 18px;
  line-height: 1;
  user-select: none;
}
.calculator__modal-close:hover {
  background: #1f1a14;
  color: #fbf6e7;
}

.calculator__modal-main {
  display: flex;
  flex: 1;
  min-height: 0;
}

.calculator__modal-column {
  display: flex;
  flex: 1 1 0;
  flex-direction: column;
  min-width: 0;
  overflow-y: auto;
  border-right: 1px solid #1f1a14;
}
.calculator__modal-column:last-child {
  border-right: none;
}

.calculator__modal-column-header {
  position: sticky;
  top: 0;
  padding: 12px 14px 8px;
  border-bottom: 1px solid rgba(31, 26, 20, 0.15);
  background: #f4ebd0;
  color: #6e5f49;
  font-family: "JetBrains Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.2em;
}

.calculator__modal-item {
  display: block;
  width: 100%;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(31, 26, 20, 0.08);
  color: #1f1a14;
  font-family: "Fraunces", Georgia, serif;
  font-size: 15px;
  text-align: left;
  user-select: none;
}
.calculator__modal-item:hover {
  background: rgba(31, 26, 20, 0.06);
}

.calculator__modal-item--selected,
.calculator__modal-item--selected:hover {
  background: #1f1a14;
  color: #fbf6e7;
}

@media (max-width: 600px) {
  .calculator__modal-item {
    padding: 10px 10px;
    font-size: 13px;
  }
  .calculator__modal-column-header {
    padding: 10px 10px 6px;
    font-size: 9px;
  }
}
body {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  min-height: 100vh;
  overflow-y: auto;
  background: #0f0f12;
}

body[data-calculator-slug] {
  align-items: flex-start;
  height: 100vh;
  overflow-y: auto;
  padding: 40px 24px 80px;
  background: radial-gradient(1200px 600px at 80% -10%, #f6efdd 0%, transparent 60%), radial-gradient(900px 500px at -10% 110%, #eadfc6 0%, transparent 55%), #efe7d4;
  color: #1f1a14;
  font-family: "Fraunces", Georgia, serif;
  font-optical-sizing: auto;
}