:root {
  --primary-color: #1a95e0;
  --error-color: #d20962;
  --font-stack: Menlo, Monaco, Lucida Console, Liberation Mono, DejaVu Sans Mono,
    Bitstream Vera Sans Mono, Courier New, monospace, serif;

  /* Font and Spacing Variables */
  --font-size-base: 100%;
  --font-line-height: 1.6;
  --spacing-base: 2px;

  /* Transition */
  --transition-base: 0.3s ease;

  --page-width: 60em;
  --input-style: solid;
}

[data-theme="light"] {
  --secondary-color: #727578;
  --background-color: #fff;
  --font-color: #222225;
  --invert-font-color: #fff;
  --button-bg: #222225; /* Button background color */
  --button-text: #1a95e0; /* Button text color (green, terminal-style) */
  --button-border: #1a95e0; /* Button border color */
  --button-hover-bg: #1a95e0; /* Background color on hover */
  --button-hover-text: #ffffff; /* Text color on hover */
  --button-hover-border: #ffffff; /* Border color on hover */
}

[data-theme="dark"] {
  --secondary-color: #e8e9ed;
  --background-color: #222225;
  --font-color: #e8e9ed;
  --invert-font-color: #222225;
  --button-bg: #e8e9ed; /* Button background color */
  --button-text: #1a95e0; /* Button text color (green, terminal-style) */
  --button-border: #1a95e0; /* Button border color */
  --button-hover-bg: #1a95e0; /* Background color on hover */
  --button-hover-text: #ffffff; /* Text color on hover */
  --button-hover-border: #ffffff; /* Border color on hover */
}

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

* {
  margin: 0;
}

html {
  font-size: var(--font-size-base);
  font-family: var(--font-stack);
  line-height: var(--font-line-height);
}

body {
  color: var(--font-color);
  letter-spacing: 0.05em;
  padding: 16px 20px;
  max-width: var(--page-width);
  margin: 0 auto;
  background: var(--background-color);
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.section,
.header {
  margin-bottom: calc(var(--spacing-base) * 10);
}

.section__heading {
  font-size: calc(var(--font-size-base) * 1.25);
}

textarea {
  font: inherit;
}

.link {
  cursor: pointer;
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--transition-base),
    background-color var(--transition-base);
}

.link:hover,
.link:focus {
  background-color: var(--primary-color);
  color: var(--invert-font-color);
  outline: none;
}

::selection {
  color: var(--invert-font-color);
  background-color: var(--primary-color);
}

.divider {
  position: relative;
  overflow: hidden;
  margin: calc(var(--spacing-base) * 20) 0;
  border: 0;
  border-bottom: 1px dashed var(--secondary-color);
}

.terminal-text {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  overflow-wrap: break-word;
}

.cursor {
  color: var(--primary-color);
  background-color: var(--primary-color);
  text-indent: -5px;
  text-decoration: blink;
  display: inline-block;
  height: 18px;
  width: 6px;
  position: relative;
  top: 4px;
  overflow: hidden;
}

.menu__list {
  display: flex;
  flex-direction: row;
  justify-items: flex-start;
  align-items: center;
  list-style: none;
  padding: 0;
}

.menu__item {
  margin: 0;
  margin-right: calc(var(--spacing-base) * 10);
}

/* Toggle checkbox */

.toggle__container {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.toggle__checkbox {
  display: none;
}

.toggle__label {
  width: 60px;
  height: 30px;
  background-color: #222225;
  position: relative;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.toggle__label .toggle__inner {
  width: 26px;
  height: 26px;
  background-color: var(--primary-color);
  position: absolute;
  top: 2px;
  left: 2px;
  transition: transform 0.3s ease;
}

.toggle__checkbox:checked + .toggle__label {
  background-color: #fff;
}

.toggle__checkbox:checked + .toggle__label .toggle__inner {
  transform: translateX(30px);
}

/* Terminal button */

.terminal__button {
  background-color: var(--button-bg);
  color: var(--button-text);
  border-color: var(--button-border);
  padding: 12px 24px;
  font-size: 18px;
  font-family: "Courier New", Courier, monospace;
  cursor: pointer;
  transition: background-color 0.3s ease;
  display: inline-flex;
  align-items: center;
}

.terminal__button .prompt__symbol {
  margin-right: 10px;
  font-weight: bold;
}

.terminal__button:hover {
  background-color: var(--button-hover-bg);
  color: var(--button-hover-text);
  border-color: var(--button-hover-border);
}

/* Blog Post */

.search {
  order: 1px var(--input-style) var(--font-color);
  width: 100%;
  margin: calc(var(--spacing-base) * 10) 0;
  padding: 0.7em 0.5em;
  font-size: 1em;
  font-family: var(--font-stack);
  border-radius: 0;
}

.search:focus {
  outline-color: var(--primary-color);
}

.post__title {
  margin-bottom: calc(var(--spacing-base) * 10);
}

.post__title-link {
  cursor: pointer;
  color: var(--font-color);
  text-decoration: none;
  transition: color var(--transition-base),
    background-color var(--transition-base);
}

.post__title-link:hover,
.post__title-link:focus {
  color: var(--primary-color);
  outline: none;
}

.post__meta {
  margin-bottom: calc(var(--spacing-base) * 10);
}

.post__tag {
  cursor: pointer;
  color: var(--primary-color);
}

.post__tag:hover,
.post__tag:focus {
  background-color: var(--primary-color);
  color: var(--invert-font-color);
}

.post__excerpt {
  margin-bottom: calc(var(--spacing-base) * 10);
}

/* ---- UTILITIES ---- */

/* Typography */

.text-primary {
  color: var(--primary-color);
}

.text-secondary {
  color: var(--secondary-color);
}

.text-error {
  color: var(--error-color);
}

.text-grey {
  color: var(--font-color);
}

.font-normal {
  font-weight: 400;
}

.font-semibold {
  font-weight: 600;
}

/* Spacing */

.ml-20 {
  margin-left: calc(var(--spacing-base) * 10);
}

.mb-20 {
  margin-bottom: calc(var(--spacing-base) * 10);
}

.offset {
  left: -1000px;
  position: absolute;
}

.hidden {
  display: none;
}

/* Animations */

.animate-none {
  animation: typing 0 steps(30, end);
}

.animate-type {
  animation: typing 0.5s steps(30, end);
  animation-timing-function: ease-in-out;
}

.animate-blink {
  animation: blink 1s linear infinite;
}

.animate-reveal {
  animation: reveal 0.5s ease forwards;
  animation-delay: 0.5s;
  opacity: 0;
}

@keyframes typing {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

@keyframes reveal {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}