:root {
  --font: "Cardo", sans-serif;

  --black: black;
  --gray-1: #171717;
  --gray-2: #222;
  --gray-3: #333;
  --gray-4: #777;
  --gray-5: #aaa;
  --gray-6: #ccc;
  --gray-7: #ececec;
  --white: white;

  --gradient-1: linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.05),
    rgba(255, 255, 255, 0.025)
  );

  --gradient-2: linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.1),
    rgba(255, 255, 255, 0.05)
  );

  --gradient-3: linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.15),
    rgba(255, 255, 255, 0.1)
  );
}

* {
  box-sizing: border-box;
}

body {
  margin-bottom: 600px;
  font-family: var(--font);
  background-color: var(--black);
  color: var(--white);
  font-size: 1.125rem;
}

ul,
h1,
h2,
h3,
p {
  margin: 0px;
  padding: 0px;
}

h1 {
  text-align: center;
  margin: 2rem 0;
  font-size: 3rem;
}

h2 {
  margin-bottom: 1.5rem;
}

a {
  color: var(--gray-4);
}

.container {
  max-width: 33rem;
  padding: 0.5rem;
  margin: 0 auto 6rem auto;
}

section > form {
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: 1rem 0.5rem;
  align-items: center;
  margin-left: -7rem;
  margin-bottom: 2rem;
}

input,
label {
  display: block;
  width: 100%;
  font-size: 1rem;
  border: 1px solid var(--gray-2);
  box-shadow: inset 0 0 0 2px var(--black);
  padding: 0.75rem;
  font-family: sans-serif;
  border-radius: 100px;
  color: var(--gray-5);
  background: var(--gradient-1);
}

label {
  font-size: 0.85rem;
  background: var(--gradient-2);
}

input:focus {
  outline: none;
  border-color: white;
}

form button,
form .split {
  grid-column: 2;
}

.split {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

@media (width < 47rem) {
  section > form {
    margin-left: 0;
  }
}

@media (width < 28rem) {
  section > form {
    grid-template-columns: 5rem 1fr;
    gap: 0.5rem;
  }

  label {
    font-size: 0.75rem;
  }

  form .split {
    flex-direction: column;
    align-items: start;
  }
}

button,
.btn,
select {
  font-size: 1rem;
  display: block;
  width: max-content;
  min-width: 160px;
  padding: 0.75rem 1.5rem;
  appearance: none;
  font-family: sans-serif;
  border-radius: 100px;
  color: var(--white);
  border: 1px solid var(--gray-2);
  background: var(--gradient-2);
  box-shadow: inset 0 0 0 2px var(--black);
  text-decoration: none;
  cursor: pointer;
  transition: 0.3s;
}

button:hover,
.btn:hover,
select:hover {
  border-color: var(--gray-3);
  background: var(--gradient-3);
  transition: 0.3s;
}

button:focus,
.btn:focus {
  outline: none;
  border-color: var(--white);
}

nav {
  margin-bottom: 2rem;
}

nav ul {
  display: flex;
  justify-content: space-around;
  list-style-type: none;
  border: 1px solid var(--gray-2);
  border-radius: 100px;
  padding: 2px;
}

nav li {
  display: block;
  flex: 1;
}

nav a {
  font-size: 1rem;
  width: 100%;
  padding: 0.5rem;
  text-align: center;
  font-family: var(--font);
  text-decoration: none;
  display: block;
  color: var(--white);
  background: var(--gradient-2);
}

nav li:first-child a {
  border-radius: 100px 0px 0px 100px;
}

nav li:last-child a {
  border-radius: 0px 100px 100px 0px;
}

nav a:hover,
nav a.active {
  background: var(--gradient-3);
}

select {
  width: 100%;
  margin-bottom: 2px;
}

section,
.render {
  animation: slideIn 0.3s ease-out forwards;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

[data-role] {
  display: none;
}

[data-role].ativo {
  display: block;
}

.ok,
.fail {
  padding: 0.5rem 1rem;
  animation: slideIn 0.3s ease-out forwards;
  border-radius: 100px;
  width: max-content;
  background: #211100;
  color: #ffca16;
  grid-column: 2;
}

.ok {
  background: #0c281c;
  color: #3dd78c;
}

#curso {
  margin-top: 2rem;
}

.curso-item {
  padding: 0 1rem 2rem 1rem;
  border-bottom: 2px dashed var(--gray-1);
  display: grid;
  grid-template-columns: 1fr 1fr;
  text-align: center;
  text-wrap: balance;
}

.curso-item > *:not(.btn) {
  padding: 0.5rem;
}

.curso-item span:first-of-type {
  border-right: 1px solid var(--gray-1);
  justify-self: end;
}

.curso-item span:last-of-type {
  border-left: 1px solid var(--gray-1);
  justify-self: start;
}

.curso-item p,
.curso-item h2,
.curso-item .btn {
  grid-column: 1 / -1;
}

.curso-item .btn {
  justify-self: center;
  margin-top: 1rem;
}

.curso-item h2 {
  margin: 1rem 0 0 0;
}

.curso-item p,
.curso-item span {
  color: var(--gray-5);
}

.curso-aulas {
  list-style: none;
  margin-top: 1rem;
}

.curso-aulas li a {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  padding: 0.75rem;
  text-decoration: none;
  align-items: center;
  color: var(--gray-6);
}

.curso-aulas li:nth-of-type(even) a {
  background-color: #111;
}

.curso-aulas li a:hover {
  background-color: var(--gray-2);
}

.curso-aulas li a span {
  color: var(--gray-4);
  font-size: 0.75rem;
  font-family: monospace;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.curso-aulas .status {
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1px solid var(--gray-3);
}

.curso-aulas .status.completa {
  background: linear-gradient(rgba(172, 239, 117), rgba(23, 232, 128));
}

#resetar-curso button {
  margin: 1rem auto;
}

/* AULA */
#aula h2 {
  font-size: 1.5rem;
  margin-bottom: 0px;
}

#breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--gray-4);
}

#breadcrumb a {
  color: var(--gray-4);
  text-decoration: none;
  font-family: sans-serif;
  font-size: 0.75rem;
}

#video {
  aspect-ratio: 16/9;
  margin: 1rem auto;
  border-radius: 12px;
  border: 1px solid var(--gray-1);
  overflow: hidden;
}

video {
  aspect-ratio: 16/9;
  max-width: 100%;
}

#aula-nav {
  display: grid;
  grid-template-columns: 100px 1fr 100px;
  justify-content: space-between;
  justify-items: center;
}

#aula-nav button,
#aula-nav a {
  padding: 0.5rem;
  min-width: 70px;
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1;
}

/* CERTIFICADOS */

#certificados ul {
  list-style: none;
  display: grid;
  gap: 1.5;
}

#certificados ul li a {
  display: flex;
  justify-content: space-between;
  width: 100%;
  padding: 1rem;
  align-items: center;
  font-family: var(--font);
}

select {
  margin-bottom: 1rem;
}

#usuarios ul {
  margin-top: 1rem;
  list-style-type: none;
}

#usuarios li {
  /* display: grid;
      grid-template-columns: 1fr 2fr 1fr; */
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.75rem;
  border-bottom: 2px dashed var(--gray-1);
  padding: 0.5rem 0;
  color: var(--gray-5);
}

#usuarios li button {
  min-width: max-content;
  padding: 0.25rem 0.75rem;
}

.hidden {
  display: none;
}

#pages {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

#pages button {
  min-width: max-content;
  padding: 0.25rem 0.75rem;
}