/* ===== CSS RESET E FUNDAMENTOS ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  scroll-behavior: smooth;
}
fieldset{border:none}

* {
  scrollbar-color: var(--scrollbar-color-1) var(--scrollbar-color-2);
  scrollbar-width: thin;
}

/* ===== VARIÁVEIS CSS ORGANIZADAS ===== */
:root {
  /* Typography */
  --primary-font: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  --base-font-size: 1rem;
  
  /* Colors - Background */
  --main-background-color: #2e471a;
  --wrapper-background-color: #ffffff;
  --calculator-background-color: #f8fdf5;
  --header-background-color: #1f3b0a;
  --footer-background-color: #1f3b0a;
  --table-header-background-color: #c5d6b5;
  --tab-button-background-color: #6b8f4d;
  --odd-row-background-color: #f8fdf5;
  --even-row-background-color: #ffffff;
  --code-background-color: #e8f5e0;
  --formula-background-color: #e8f5e0;
  --controls-background-color: #ffffff;
  --verbose-background-color: #ffffff;
  --destacado-background-color: #ffffff;
  --tooltip-background-color: #ffffff;
  --selection-background-color: #b8d4a2;
  --hlp-background-color: #6b8f4d;
  --highlight-background-color: #e8f5e0;
  
  /* Colors - Text */
  --text-color-main: #1a1a1a;
  --text-color-secondary: #2d2d2d;
  --table-header-color: #1a2e1a;
  --footer-text-color: #9fc478;
  --logo-color: #9fc478;
  --top-answer-color: #2e5a0d;
  --controls-color: #1a3d06;
  --destacado-color: #2e5a0d;
  --hlp-color: #ffffff;
  --highlight-text-color: #cc4400;
  --code-color: #cc0000;
  
  /* Colors - Interactive */
  --link-color: #2e5a0d;
  --link-hover-color: #6b8f4d;
  --button-background-color: #6b8f4d;
  --button-color: #ffffff;
  --button-hover-background-color: #5a7d3f;
  --button-disabled-color: #666666;

  /* Colors - Borders */
  --border-color: #b8d4a2;
  --calculator-border-color: #a8a8a8;
  --controls-border-color: #a8a8a8;
  --formula-border-color: #5a7d3f;
  --input-border-color: #d0d0d0;
  --input-focus-border-color: #6b8f4d;
  --select-focus-border-color: #6b8f4d;
  --tooltip-border-color: #6b8f4d;
  
  /* Scrollbar */
  --scrollbar-color-1: #6b8f4d;
  --scrollbar-color-2: #666666;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  
  /* Border Radius */
  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 0.75rem;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.6s ease;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);
}

/* ===== MODO ESCURO E TEMA ALTERNATIVO ===== */
@media (prefers-color-scheme: dark) {
  :root {
    --main-background-color: #262626;
    --wrapper-background-color: #1a1a1a;
    --calculator-background-color: #262626;
    --text-color-main: #e8e8e8;
    --text-color-secondary: #d0d0d0;
    --controls-color: #b8d4a2;
    --destacado-color: #9fc478;
    --link-color: #9fc478;
    --link-hover-color: #b8d4a2;
    --table-header-background-color: #3d4f33;
    --table-header-color: #e8e8e8;
    --odd-row-background-color: #262626;
    --even-row-background-color: #2a2a2a;
    --code-background-color: #2d3830;
    --formula-background-color: #2d3830;
    --controls-background-color: #1a1a1a;
    --verbose-background-color: #1a1a1a;
    --border-color: #3d4f33;
    --calculator-border-color: #666666;
    --controls-border-color: #666666;
    --input-border-color: #666666;
    --tooltip-background-color: #1a1a1a;
    --tab-button-background-color: #5a7d3f;
  }
  
  ::placeholder {
    color: #a0a0a0;
  }
}


/* ===== RESET E BASE ===== */

body {
  font-family: var(--primary-font);
  background-color: var(--main-background-color);
  color: var(--text-color-main);
  margin: 0;
/*    line-height: 1.6;
 min-height: 100vh; */
}

/* ===== SELEÇÃO E PLACEHOLDERS ===== */
::selection {
  background: var(--selection-background-color);
  color: var(--text-color-main);
}

::placeholder {
  color: #666666;
  font-family: var(--primary-font);
  font-stretch: condensed;
  font-size: 0.875rem;
  font-weight: 500;
}

/* ===== TIPOGRAFIA ===== */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-color-main);
  margin: var(--spacing-sm) 0 var(--spacing-sm) var(--spacing-xs);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

h1 { font-size: clamp(1.3rem, 4vw, 1.8rem); }
h2 { font-size: clamp(1.1rem, 3vw, 1.4rem); }
h3 { font-size: clamp(1rem, 2.5vw, 1.2rem); }
h4 { font-size: 1.1rem; }
h5 { font-size: 1rem; }


p {
  margin: var(--spacing-sm) 0 var(--spacing-sm) var(--spacing-xs);
  padding: 0 var(--spacing-xs);
}

.small, small { font-size: 0.875rem; }
.x-small { font-size: 0.75rem !important; }

/* ===== LINKS ===== */
a {
  text-decoration: none;
  color: var(--link-color);
  transition: color var(--transition-fast);
}

a:hover,
a:focus {
  color: var(--link-hover-color);
}

/* ===== LAYOUT E ESTRUTURA ===== */
#wrapper {
  background: var(--wrapper-background-color);
  max-width: 768px;
  margin: 0 auto;
  padding: 0;
}

#content {
  clear: both;
  padding: 0 var(--spacing-xs);
}

#header {
  background: var(--header-background-color);
  height: 35px;
  width: 100%;
  position: sticky;
  top: 0;
  z-index: 100;
  padding-left: 5px;
}
.logo{
    color:var(--logo-color);
}
#footer {
  clear: both;
  padding: var(--spacing-xs);
  background: var(--footer-background-color);
  color: var(--footer-text-color);
}

#footer a {
  color: var(--footer-text-color);
}

/* ===== SISTEMA DE LAYOUT ORIGINAL PRESERVADO ===== */
.blockcontainer {
  position: relative;
}

.block0 {
  padding: 0 var(--spacing-xs);
}

.block,
.blockul,
.block2,
.block3,
.block4,
.block5,
.block6,
.block10,
.half-w,
.menu-block {
  display: inline-block;
  vertical-align: top;
  margin: 0;
}

.block,
.block2 {
  min-width: 42%;
  padding: 0 var(--spacing-xs);
}

.block3 {
  width: 31%;
}

.block4 {
  width: 23.7%;
  padding: 0;
}

.block6 {
  width: 16%;
}

.block10 {
  width: 9.1%;
  padding: 0;
}

.blockul {
  min-height: 110px;
  border-radius: 0;
  width: 30.5%;
}

.menu-block {
  min-height: 125px;
  width: 32.8%;
}

.half-w {
  width: 50%;
}

.flex {
  display: inline-flex;
}

.clearfix::after {
  content: "";
  display: table;
  clear: both;
  position: absolute;
}

.group-container {
  display: flex;
  margin: var(--spacing-xs) 0;
}

/* Layout responsivo desktop - duas colunas */
@media only screen and (min-width: 780px) {
  .block:nth-child(1) {
    width: 53.5%;
  }
  .block:nth-child(2),
  .half-w:nth-child(2) {
    width: 44.2%;
  }
}

/* ===== FORMULÁRIOS ===== */
input,
select {
  max-width: 160px;
}

input,
select,
textarea {
  font-size: 1rem;
  min-height: 44px;
  color: var(--text-color-main);
  background: var(--controls-background-color);
  border: 1px solid var(--input-border-color);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-xs);
  margin: var(--spacing-sm) var(--spacing-xs);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--input-focus-border-color);
  box-shadow: 0 0 0 3px rgba(107, 143, 77, 0.3);
}

input:disabled,
select:disabled,
textarea:disabled {
  background-color: var(--calculator-background-color);
  color: var(--text-color-main);
  cursor: not-allowed;
}

select {
  cursor: pointer;
}

select option {
  color: var(--text-color-main);
  background: var(--controls-background-color);
}

select option:checked,
select option[selected] {
  background-color: var(--calculator-background-color) !important;
  color: var(--button-color) !important;
}

/* Para navegadores WebKit */
select option:hover {
  background: linear-gradient(var(--calculator-background-color) , var(--calculator-background-color) ) !important;
}

/* Usando as variáveis do seu CSS */
select option:hover {
  background-color: var(--calculator-background-color) !important;
  color: var(--button-color) !important;
}

label {
  font-size: var(--base-font-size);
  line-height: 1.4;
  margin-bottom: var(--spacing-xs);
  display: inline-block;
  color: var(--text-color-main);
  font-weight: 500;
}

label.disabled {
  color: var(--button-disabled-color);
  cursor: not-allowed;
}

/* Checkboxes e radios modernos */
input[type="checkbox"],
input[type="radio"] {
  appearance: none;
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid var(--text-color-main);
  border-radius: var(--border-radius-sm);
  position: relative;
  cursor: pointer;
  margin: 0 var(--spacing-xs) 0 0;
  min-height: auto;
  background: var(--controls-background-color);
}

input[type="radio"] {
  border-radius: 50%;
}

input[type="checkbox"]:checked, input[type="radio"]:checked {
  background: var(--button-background-color);
  border-color: var(--button-background-color);
}

input[type="checkbox"]:checked::before {
  content: "✓";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--button-color);
  font-weight: bold;
  font-size: 0.875rem;
}

input[type="radio"]:checked::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 0.625rem;
  height: 0.625rem;
  background: var(--button-color);
  border-radius: 50%;
}

input[type="checkbox"]:focus,
input[type="radio"]:focus {
  outline: 2px solid var(--button-background-color);
  outline-offset: 2px;
}

/* ===== LISTAS ===== */
li {
  margin-left: -1.5em;
  list-style: none;
  padding: 0.3em 0.1em 0 0.4em;
}

li a {
  color: inherit;
  margin: 0;
  border-bottom: none;
}

.bullet::before,
.bulletCalc::before,
.bulletConv::before {
  content: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs+9AAAAMUlEQVQoU2NkIBIwgtStfZnxH5/6YPEZjKQpJMZ2sIm+vr5gqzdv3syIi02awkFuNQD6BTgLU7Dm+wAAAABJRU5ErkJggg==');
  margin: 0.2em 0.2em 0 -0.2em;
}

/* ===== BOTÕES ===== */
.btn,
button {
  font-family: var(--primary-font);
  color: var(--button-color);
  background: var(--button-background-color);
  border: none;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  padding: var(--spacing-sm) var(--spacing-md);
  margin: var(--spacing-xs);
  font-size: var(--base-font-size);
  font-weight: 600;
  transition: all var(--transition-fast);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  text-decoration: none;
}

.btn:hover,
button:hover {
  background: var(--button-hover-background-color);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn:focus,
button:focus {
  outline: 3px solid var(--button-background-color);
  outline-offset: 2px;
}

.btn:active,
button:active {
  transform: translateY(0);
}

.btn:disabled,
button:disabled {
  background-color: #cccccc;
  color: #666666;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn:disabled:hover,
button:disabled:hover {
  background-color: #cccccc;
  transform: none;
}

/* ===== CALCULADORA ===== */
.calculator {
  min-width: 280px;
  border-radius: var(--border-radius-md);
  background-color: var(--calculator-background-color);
  padding: var(--spacing-sm);
  border: 1px solid var(--calculator-border-color);
  box-shadow: var(--shadow-md);
}

.calculator-tabbed {
  margin: 45px 0 var(--spacing-md) 0;
}

.calculator-tab {
  margin: -65px 0 var(--spacing-xs) 0;
}

.calculator-tab button {
  background-color: var(--tab-button-background-color);
  color: var(--button-color);
  border: none;
  margin: 13.5px 0 var(--spacing-xs) 0;
  border-radius: var(--border-radius-md) var(--border-radius-md) 0 0;
  cursor: pointer;
  padding: var(--spacing-xs) 0.15em;
  transition: all var(--transition-normal);
  font-weight: 400;
  font-size: 0.85rem;
  letter-spacing: -0.035em;
  line-height: 30px;
}

.calculator-tab button:hover {
  background: var(--button-hover-background-color);
  color: var(--button-color);
}

.calculator-tab button.active {
  background-color: var(--calculator-background-color);
  color: var(--text-color-main);
  cursor: default;
  border: 1px solid var(--calculator-border-color);
  border-bottom: none;
}

.calculator table.lin1 td, table.lin1 th {
    padding: 0.15em;
}

/* ===== TABELAS ===== */
table {
  border-collapse: collapse;
  border-spacing: 0;
  width: 100%;
}

table.lin1 {
  max-width: 768px;
  margin: var(--spacing-lg) 0;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  line-break: anywhere;
}

table.lin1 th {
  padding: var(--spacing-sm);
  font-weight: 600;
  color: var(--table-header-color);
  background: var(--table-header-background-color);
  text-align: left;
}

table.lin1 td {
  padding: var(--spacing-sm);
  border-bottom: 1px solid var(--border-color);
}

table.lin1 tr:nth-child(odd) {
  background: var(--odd-row-background-color);
}

table.lin1 tr:nth-child(even) {
  background: var(--even-row-background-color);
}

table.lin1 tr:last-child td {
  border-bottom: none;
}

/* ===== UTILITÁRIOS ===== */
.centered {
  text-align: center;
}

.right-aligned {
  text-align: right;
}

.left-aligned {
  text-align: left;
}

.hidden {
  visibility: hidden;
}

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

.destacado {
  color: var(--destacado-color);
  font-weight: 700;
}

.destacado2 {
  color: var(--destacado-color);
  font-weight: 700;
  background-color: var(--destacado-background-color);
  padding: 0.1em 0.3em;
  border-radius: var(--border-radius-sm);
}

.destacado3 {
  color: var(--destacado-color);
  font-weight: 600;
}

.big {
  font-size: 1.1em;
  color: var(--destacado-color);
  font-weight: 600;
}

.bigdestacado,
.bigtext {
  color: var(--destacado-color);
  font-weight: 700;
  font-size: 1.5em;
}

.bigtext {
  border-radius: var(--border-radius-md);
  color: var(--destacado-color);
  font-size: 1.2em;
  text-align: center;
  font-weight: 600;
  padding: var(--spacing-sm);
}

.disabled {
  color: #666666;
  cursor: not-allowed;
}

/* ===== NAVEGAÇÃO ===== */
.nav {
  font-family: inherit;
  font-size: 1em;
  height: 100%;
  position: fixed;
  top: 0;
  bottom: 0;
  transition: visibility 0.7s;
  visibility: hidden;
  width: inherit;
  z-index: 10000;
}

.nav ul {
  padding-left: 0;
  margin-bottom: 16px;
  list-style-type: none;
}

.nav ul:last-of-type {
  margin-bottom: 20px;
}

.nav li {
  list-style: none;
}

.nav a {
  background-color: transparent;
  color: var(--text-color-main);
}

.nav a.active,
.nav a:focus,
.nav a:hover {
  border-bottom: none;
  color: var(--link-hover-color);
}

.nav h2 {
  margin-bottom: 15px;
  margin-top: 0;
  font-size: 1.4em;
  color: var(--text-color-main);
}

.nav-button {
  height: 35px;
  position: absolute;
  outline: none !important;
  transition: background-color 200ms, transform 0.5s;
  white-space: nowrap;
  z-index: 100000;
  background-color: var(--header-background-color);
  padding: 0 0 0 40px;
}

.nav-button .nav-icon {
  background-color: var(--logo-color);
  bottom: auto;
  height: 4px;
  left: 50%;
  position: absolute;
  right: auto;
  top: 50%;
  transform: translateX(-50%) translateY(-50%);
  transition: 0.5s;
  width: 35px;
}

.nav-button:focus .nav-icon,
.nav-button:hover .nav-icon {
  outline: 0;
  color: var(--logo-color);
}

.nav-button .nav-icon::after,
.nav-button .nav-icon::before {
  backface-visibility: hidden;
  background-color: inherit;
  content: '';
  height: 100%;
  right: 0;
  position: absolute;
  top: 0;
  transform: translateZ(0);
  transition: transform 0.5s, width 0.5s, top 0.3s;
  width: 100%;
}

.nav-button .nav-icon::before {
  transform: translateY(-9px);
}

.nav-button .nav-icon::after {
  transform: translateY(9px);
}

.nav .nav-wrapper {
  border-bottom: 1px solid var(--border-color);
  max-width: 768px;
  background-color: var(--wrapper-background-color);
  height: 100%;
  overflow-y: auto;
  transform: translate(0, 100%);
  transition: transform 0.7s;
  margin-left: 0;
  width: 100%;
}

.nav-wrapper {
  position: fixed;
  margin: 25px 0;
  padding-top: 0.5em;
  margin-top: 40px;
}

.nav--open .nav .nav-wrapper,
.nav--open .nav-icon::after,
.nav--open .nav-icon::before {
  transition: transform 0.5s;
}

.nav--open .nav .nav-wrapper {
  transform: translateX(0);
}

.nav--open .nav {
  transition: visibility 0.5s;
  visibility: visible;
}

.nav--open .nav-icon::after,
.nav--open .nav-icon::before {
  background-color: var(--logo-color);
}

.nav--open .nav-icon::before {
  transform: rotate(45deg);
}

.nav--open .nav-icon::after {
  transform: rotate(-45deg);
}

.nav--open .nav-button:focus .nav-icon,
.nav--open .nav-button:hover .nav-icon,
.nav--open .nav-icon {
  background-color: transparent;
}

/* ===== COMPONENTES AVANÇADOS ===== */
.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip .tooltiptext {
  visibility: hidden;
  font-size: small;
  background-color: var(--tooltip-background-color);
  color: var(--text-color-main);
  text-align: left;
  padding: var(--spacing-sm);
  border-radius: var(--border-radius-md);
  position: absolute;
  z-index: 1000;
  border: 1px solid var(--tooltip-border-color);
  box-shadow: var(--shadow-lg);
  min-width: 210px;
  right: -5.4rem;
  bottom: 1.5rem;
  transform: translateX(-50%);
  opacity: 0;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.tooltip:hover .tooltiptext {
  visibility: visible;
  opacity: 1;
}
.hlp {
  padding: 0.1em 0.55em 0.1em 0.55em;
  color: var(--hlp-color);
  border-radius: 50%;
  background-color: var(--hlp-background-color);
  /* font-size: 14px; */
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  text-align: center;
  -ms-overflow-style: none;
  overflow: -moz-scrollbars-none;
}


/* Jump Menu */
.jump-menu {
  background: var(--calculator-background-color);
  padding: 10px 20px;
  margin: 20px 0;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
}

.jump-menu ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
}

.jump-menu li {
  margin: 0;
}

.jump-menu a {
  color: var(--controls-color);
  text-decoration: none;
  font-weight: 600;
}

.jump-menu a:hover {
  text-decoration: underline;
}

/* Accordion FAQ */
.faq-section .faq-item {
  margin-bottom: var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  overflow: hidden;
}

.faq-section .faq-item h3 {
  cursor: pointer;
  padding: var(--spacing-md);
  margin: 0;
  background: var(--calculator-background-color);
  transition: background-color var(--transition-fast);
  position: relative;
}

.faq-section .faq-item h3:hover {
  background: var(--table-header-background-color);
}

.faq-section .faq-item h3::after {
  content: '+';
  position: absolute;
  right: var(--spacing-md);
  font-size: 1.25rem;
  transition: transform var(--transition-fast);
}

.faq-section .faq-item.open h3::after {
  content: '−';
  transform: rotate(180deg);
}

.faq-section .faq-item .faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.faq-section .faq-item.open .faq-content {
  max-height: 500px;
}

.faq-section .faq-item p {
  padding: var(--spacing-md);
  margin: 0;
}

/* Floating back to top */
.floating-back-to-top {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  width: 3rem;
  height: 3rem;
  background-color: var(--button-background-color);
  color: var(--button-color);
  text-align: center;
  line-height: 3rem;
  border-radius: 50%;
  font-size: 1.25rem;
  font-weight: bold;
  text-decoration: none;
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  transition: all var(--transition-normal);
  opacity: 0;
  visibility: hidden;
}

.floating-back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.floating-back-to-top:hover {
  background-color: var(--button-hover-background-color);
  transform: translateY(-2px) scale(1.05);
}

/* ===== TREE VIEW E NAVEGAÇÃO HIERÁRQUICA ===== */
#myUL {
  margin: 0 0 0 0.6em;
  padding: 0;
  background: transparent;
  margin-bottom: 115px;
  font-family: 'Arial Narrow', var(--primary-font);
  font-stretch: condensed;
  font-weight: 300;
  list-style-type: none;
}

#myUL li {
  margin: 0.5em;
}

.caret {
  cursor: pointer;
  user-select: none;
  appearance: none;
  min-height: 20px;
  padding: 5px;
  font-weight: 600;
  font-size: 18px;
  color: var(--text-color-main);
  background: transparent;
  border: none;
  transition: color var(--transition-fast);
}

.caret:hover {
  color: var(--link-hover-color);
}

.caret::before {
  content: "\25B7";
  color: var(--destacado-color);
  display: inline-block;
  margin-right: 5px;
  font-size: 18px;
  font-weight: 600;
  transition: transform var(--transition-fast);
}

.caret-down::before {
  transform: rotate(90deg);
}

.nested {
  display: none;
  margin: 0 5px 10px 20px;
}

.nested ul > li:last-child {
  margin-bottom: -20px !important;
}

.caret-active {
  display: block;
}

/* ===== CLASSES ESPECÍFICAS E COMPONENTES ===== */

/* Cabeçalhos e botões com ícones */
.calcHeader{
  display: block;
  border-radius: var(--border-radius-md);
  color: var(--text-color-main) !important;
  background: var(--table-header-background-color);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  min-height: 20px;
  padding: 7px 6px;
  color: #e9f0f3;
  font-weight: 600;
  font-size: 1.2em;
  margin: -5px -5px 0.25em;
  letter-spacing: -0.03em;
}

.calcHeader::before {
  content: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA0AAAAUCAYAAABWMrcvAAAABHNCSVQICAgIfAhkiAAAAFpJREFUOI1jbGho+M9AImBhYGBgUAj7QrSGB6t4GJhItYWBgWGwa2JhYIB4juY2MTQ0NPxHBjD+v3//UPjI8nCb/v8nPo7hmhgZGVEk0PkocuQko1E/DQ0/AQCVk6E9ELLsjwAAAABJRU5ErkJggg==');
  display: inline-block;
  width: 18px;
}

.copy-button::before {
  content: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABQAAAAUAQMAAAC3R49OAAAABlBMVEUAAAD///+l2Z/dAAAAAXRSTlMAQObYZgAAAENJREFUCNdjYP/HwMDCzsDAw9rAYMPSwJDD5sDgw/yAwYchAYgVwDjnH4Lt8w8qBpIHYvf/BxgSmBkYEpgYGOz/MQAASrsPv8WC2wkAAAAASUVORK5CYII=');
  display: inline-block;
  width: 18px;
  margin-right: 5px;
}

.ok-btn::before {
  content: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABQAAAAUAQMAAAC3R49OAAAABlBMVEUAAAD///+l2Z/dAAAAAXRSTlMAQObYZgAAADhJREFUCNdjQAUFQPyBgYHxAQMD8wEGBvYGBgZ+oJAcA4ODDQPDgwqgCqC0JVBaHijND5RmRzUAAHdxCXudC3IgAAAAAElFTkSuQmCC');
  display: inline-block;
  width: 18px;
  margin-right: 5px;
}

.reload-btn::before {
  content: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABQAAAAUAQMAAAC3R49OAAAABlBMVEUAAAD///+l2Z/dAAAAAXRSTlMAQObYZgAAAD5JREFUCNcdyFENACEMBNG5VEDPAQhBFBKQhpRKQAAhbJnN+1kyW+AbyoHmP11HCk9BmHzyVunwNCkDfIKJulFhE3xuiU5TAAAAAElFTkSuQmCC');
  display: inline-block;
  width: 18px;
  margin-right: 5px;
}

/* Área verbose para resultados detalhados */
#verbose,
.verbose {
  background: var(--verbose-background-color);
  font-size: var(--base-font-size);
  min-height: 36px;
  border-radius: var(--border-radius-md);
  margin: var(--spacing-xs) 0;
  padding: var(--spacing-xs);
  overflow: auto;
  word-break: normal;
  overflow-wrap: anywhere;
}

#verbose h3,
.verbose h3 {
  margin: var(--spacing-xs) 0 0 var(--spacing-xs);
  font-size: 1.1em;
}

#verbose table {
  width: 98%;
}

/* Menu de propriedades */
#propertyMenu {
  max-width: 300px !important;
}

/* Fórmulas matemáticas */
#formula,
.formula {
  padding: var(--spacing-sm);
  margin: var(--spacing-xs) var(--spacing-xs) var(--spacing-xs) var(--spacing-sm);
  color: var(--text-color-main);
  background: var(--code-background-color);
  border-left: 4px solid var(--formula-border-color);
  width: fit-content;
  line-height: normal;
  display: inline-block;
  border-radius: var(--border-radius-sm);
}

.verbose #formula,
#verbose .formula {
  border: none;
}

/* Cabeçalho HR */
.HrHeader {
  appearance: none;
  text-align: left;
  color: var(--text-color-main);
}

/* Elementos de conversão */
#switch,
.equal,
.switch {
  color: var(--destacado-color);
  font-size: 1.2em;
  font-weight: bold;
  text-align: center;
  cursor: pointer;
  user-select: none;
  transition: color var(--transition-fast);
}

#switch:hover,
.equal:hover,
.switch:hover {
  color: var(--link-hover-color);
}

/* Campos de conversão */
#converted,
#from,
#from_val,
#fromval,
#q,
#to,
#to_val,
#toval,
.from,
.to {
  font-size: var(--base-font-size);
  max-width: 150px;
}

#from,
#fromval,
#q,
.from {
  float: right;
}

#converted,
#to,
#toval,
.to {
  float: left;
}

/* Frações matemáticas */
.fraction {
  display: inline-block;
  text-align: center;
  vertical-align: middle;
  font-size: 0.9em;
  margin: 0 0.1em;
  line-height: 1em;
}

.top {
  line-height: normal;
  font-size: 75%;
}

.bottom {
  border-top: 1px solid var(--text-color-main);
  display: block;
  margin: 0 0 0.2em;
  font-size: 75%;
}

/* Calendário */
.estiloMes {
  font-weight: 600;
  color: var(--text-color-secondary);
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.estiloDia,
.estiloSemana {
  border-collapse: collapse;
  text-align: center;
  border: 1px solid var(--border-color);
}

.estiloSemana {
  font-size: 0.9em;
  background-color: var(--table-header-background-color);
  font-weight: 600;
  padding: var(--spacing-xs) 0;
  color: var(--text-color-main);
}

.estiloDia {
  background-color: var(--odd-row-background-color);
  width: 30px;
  font-size: 14px;
  padding: 2px;
  color: var(--text-color-main);
}

/* Mídia e imagens */
audio,
canvas,
iframe,
img,
svg,
video {
  vertical-align: middle;
}

img {
  border: 0;
  max-width: 100%;
  height: auto;
}

.responsive-image {
  height: auto;
  width: 100%;
}

.videoWrapper {
  position: relative;
  padding-bottom: 56.25%;
  padding-top: 25px;
  height: 0;
  border-radius: var(--border-radius-md);
  overflow: hidden;
}

.videoWrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* Equações */
.equation {
  height: 58px;
  margin-bottom: 2em;
  padding: 4px;
  text-align: center;
}

/* Links externos */
.extlink {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' height='11' width='11' viewBox='0 0 11 11' stroke-width='1' stroke='%2300a300' stroke-linejoin='round' stroke-linecap='round'%3E%3Cpath d='m6 1h4v4' /%3E%3Cpath d='m10 1-5 5' /%3E%3Cpath d='m3 3h-2v7h7v-2' /%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 0 5px;
  padding: 0 0 5px 15px;
  list-style: none;
  font-size: var(--base-font-size);
}

/* SVG e gráficos */
#svg {
  text-align: center;
}

svg:not(:root) {
  overflow: hidden;
}

.svg-area {
  fill: var(--highlight-background-color);
}

.params-line {
  stroke: var(--text-color-secondary);
  fill: var(--text-color-secondary);
}

.main-line {
  stroke: var(--text-color-secondary);
  stroke-width: 2px;
  fill: none;
}

svg text {
  stroke: var(--highlight-text-color);
  stroke-width: 1px;
  fill: none;
}

.svg-surface {
  fill: var(--calculator-background-color);
}

/* Utilitário */
.no-border {
  border: 0 !important;
}

/* ===== RESPONSIVE DESIGN ===== */
@media only screen and (max-width: 480px) {
  input, select {
    max-width: 135px;
  }
  
  #converted, #from, #from_val, #fromval, #q, #to, #to_val, #toval, .from, .to {
    max-width: 130px;
  }
  
  .block,
  .blockul,
  .block2,
  .block3,
  .block4,
  .block5,
  .block6,
  .block10,
  .half-w,
  .menu-block,
  .block:nth-child(2),
  .half-w:nth-child(2) {
    width: 100%;
  }
  li {
    padding: 0.3em 0.3em 0.5em 0em;
  }
}

@media only screen and (max-width: 361px) {
  input, select {
    max-width: 125px !important;
  }
}

@media only screen and (max-width: 321px) {
  .calculator-tab button {
    font-size: 14px;
  }
  
  .unitMenu {
    max-width: 124px !important;
  }
  
  input, select {
    max-width: 110px !important;
  }
}

@media only screen and (max-width: 301px) {
  .logo {
    font-size: 15px;
  }
  
  #converted, #from, #from_val, #fromval, #q, #to, #to_val, #toval, .from, .to {
    max-width: 80px;
  }
  
  .calculator-tab button {
    letter-spacing: 0;
  }
  
  .unitMenu {
    max-width: 80px !important;
  }
  
  input, select {
    max-width: 77px !important;
  }
}

@media (max-width: 480px) {
  .floating-back-to-top {
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    width: 2.5rem;
    height: 2.5rem;
    line-height: 2.5rem;
    font-size: 1rem;
  }
}


/* ===== ACESSIBILIDADE ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}


/* Social buttons */
.thumbnail-image{
    height:300px;
}
.social-icon{
    height:32px;
    width:32px;
}
.social-icon-container {
  display: inline-block;
  overflow: hidden;
}
.social-icon-container img {
  filter: grayscale(30%);
  transition: filter 0.3s ease;
}
.social-icon-container:hover img {
  filter: grayscale(0%);
}

/* Screen resolution:
1280×800 (HD, WXGA)
1366×768 (HD)
1600×900 (HD+)
1920×1080 (Full HD, FHD, 1080p)
 */
#left-bar, #right-bar{
    visibility:hidden;
    display:none;
    position:absolute;
    padding:0;
    margin-top:60px;
}

#left-bar{margin:0 0 0 -270px}
#right-bar{margin:0 0 0 786px}

/* site wrapper: 770px */
@media only screen and (min-width:1280px) { /*1140 - 770 = 370 -> 370/2 = 185  */ 
  #left-bar{display:block;visibility:visible;}
  #right-bar{display:block;visibility:visible;}
}

@media only screen and (min-width:1280px) {
  #left-bar{min-width:200px;}
  #right-bar{min-width:200px;}
}

@media only screen and (min-width:1366px) {
  #left-bar{width:250px;}
  #right-bar{width:250px;}
}

@media only screen and (min-width:1600px) {
  #left-bar{width:360px;}
  #right-bar{width:360px;}
}


  
/* Ad units */
/* Adsense Ad units */
/* 2560 x 1440 | 1920 x 1080 | 1600 x 900 | 1536 x 864 | 1440 x 900 | 1366 x 768 | 1280 x 720 */
ins{text-align:center!important}

#ad-1,#ad-2,#ad-3{
    text-align:center!important;min-width:240px;
}
#ad-1{height:0}
    
#ad-2{margin:0 0 15px 0}
#ad-3{margin:15px 0 15px 0}

#ad-calc{margin:10px 0 10px 0;height:120px}

@media only screen and (max-width:600px) {/* big phones */
  #ad-1{height:204px;margin:15px 0 15px 0;}
  #ad-2, #ad-3{margin-top:15px}
}
@media only screen and (max-width:412px) {/* Galaxy s20 Ultra */
  #ad-2,#ad-3{min-height:350.2px}
}
@media only screen and (max-width:390px) {/* iphone 12 */
  #ad-2,#ad-3{min-height:332.198px}
}
@media only screen and (max-width:375px) {/* iphone se */
  #ad-2,#ad-3{min-height:319.198px}
}
@media only screen and (max-width:360px) {/* Galaxy note 3, S8 */
  #ad-2,#ad-3{min-height:307.198px}
}
@media only screen and (max-width:320px) {/* iphone 4 */
  #ad-2,#ad-3{min-height:273.198px}
}