:root {
  /* Brand */
  --color-primary: #84a98cff;
  --color-primary-hover: #354f52ff;
  --color-secondary: #52796fff;
  --color-secondary-hover: #2f3e46ff;
  --bg-body: #cad2c5ff;
  --color-accent: #ffffff;
  --color-text: #111827;

  /* Typography */
  --font-main: "Roboto", sans-serif;
}

html {
  box-sizing: border-box;
  font-size: 62.5%;
}

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

body {
  font-family: var(--font-main);
  font-size: 1.8rem;
  background-color: var(--bg-body);
}

h1,
h2,
h3 {
  margin: 0 0 2rem 0;
  line-height: 1.2;
}

h1 {
  font-size: 3.8rem;
}

@media (min-width: 768px) {
  h1 {
    font-size: 4.5rem;
  }
}

a {
  text-decoration: none;
  color: var(--color-text);
}

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

.container {
  max-width: 120rem;
  width: 90%;
  margin: 0 auto;
}

.section {
  padding: 4rem 0;
}

/*UTILIDADES*/
.button {
  display: block;
  background-color: var(--color-primary);
  color: var(--color-accent);
  text-transform: uppercase;
  font-weight: 900;
  padding: 1rem;
  transition: background-color .3s ease-out;
  text-align: center;
  border: none;
  width: 100%;
}

.button:hover {
  background-color: var(--color-primary-hover);
  cursor: pointer;
}

@media (min-width: 768px) {
  .button {
    width: auto;
  }
}

.text-center {
  text-align: center;
}

.calculator {
  max-width: 700px;
  background: var(--bg-body);
  border: 1px solid var(--color-primary);
  padding: 30px;
  margin: 4rem auto;
  border-radius: 15px;
}

.calculator h1 {
  color: var(--color-primary);
  text-align: center;
}

.calculator__line {
  width: 100%;
  height: 1px;
  background: var(--color-primary);
  margin: 2rem 0;
}

.calculator__description {
  font-size: 1.6rem;
  margin-bottom: 5rem;
}

.calculator__formula {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 2.4rem;
  margin-bottom: 40px;
}

.calculator__formula input {
  width: 120px;
  border: 2px solid var(--color-secondary);
  padding: 10px;
  font-size: 1.8rem;
}

.calculator__buttons {
  display: flex;
  align-items: center;
  gap: 15px;
  flex-wrap: wrap;
}

button {
  border: none;
  cursor: pointer;
  padding: 15px 30px;
  font-size: 2.2rem;
  font-weight: bold;
  color: white;
  transition: 0.2s ease;
}

.calculator__clear-btn {
  background: #d6001c;
}

.calculator__clear-btn:hover {
  background: #b50017;
}

.calculator__calc-btn {
  background: var(--color-primary);
}

.calculator__calc-btn:hover {
  background: var(--color-primary-hover);
}

.calculator__result {
  min-width: 180px;
  border: 2px solid var(--color-secondary);
  display: flex;
  align-items: center;
  padding: 10px;
  font-size: 2.8rem;
  font-weight: bold;
  background-color: var(--color-accent);
}

/* BREAKDOWN */
.breakdown {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 10px;
}

.breakdown__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.breakdown__label {
  flex: 1;
  font-size: 2rem;
  font-weight: bold;
  color: var(--color-secondary);
}

.breakdown__pct-group {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 2rem;
}

.breakdown__pct-input {
  width: 90px;
  border: 2px solid var(--color-secondary);
  padding: 8px 10px;
  font-size: 1.8rem;
  text-align: center;
}

.breakdown__pct-input--error {
  border-color: #d6001c;
}

.breakdown__result {
  min-width: 180px;
  border: 2px solid var(--color-secondary);
  display: flex;
  align-items: center;
  padding: 10px;
  font-size: 2.4rem;
  font-weight: bold;
  background-color: var(--color-accent);
}

.breakdown__validation {
  font-size: 1.5rem;
  font-weight: bold;
  margin: 1rem 0 2rem;
  min-height: 2rem;
}

.breakdown__validation--error {
  color: #d6001c;
}

.breakdown__validation--ok {
  color: var(--color-secondary);
}