/* Colors */
:root {
  --color-accent: #0bc;
  --color-darkest: rgba(0, 0, 17, 0.9); /* #000011e5 - 90% */
  --color-darker: rgba(0, 0, 17, 0.7); /* #000011b2 - 70% */
  --color-half: rgba(0, 0, 17, 0.5); /* #00001180 - 50% */
  --color-light: rgba(0, 0, 17, 0.1); /* #0000111a - 10% */
  --color-lighter: rgba(0, 0, 17, 0.05); /* #0000110d - 5% */
  --color-lightest: rgb(255, 255, 255); /* #fff */
  --space-clamp: clamp(1.5rem, 3vw, 4rem);
}
.ghost {
  --color-darkest: rgba(255, 255, 255, 0.9); /* e5 - 90% */
  --color-darker: rgba(255, 255, 255, 0.7); /* b2 - 70% */
  --color-half: rgba(255, 255, 255, 0.5); /* 80 - 50% */
  --color-light: rgba(255, 255, 255, 0.1); /* 1a - 10% */
  --color-lighter: rgba(255, 255, 255, 0.05); /* 0d - 5% */
  --color-lightest: rgb(0, 0, 17); /* #001 */
}

@media (prefers-color-scheme: dark) {
  :root {
    /* copied from .ghost */
    --color-darkest: rgba(255, 255, 255, 0.9);
    --color-darker: rgba(255, 255, 255, 0.7);
    --color-half: rgba(255, 255, 255, 0.5);
    --color-light: rgba(255, 255, 255, 0.1);
    --color-lighter: rgba(255, 255, 255, 0.05);
    --color-lightest: rgb(0, 0, 17);
  }

  .ghost {
    /* copied from :root */
    --color-darkest: rgba(0, 0, 17, 0.9);
    --color-darker: rgba(0, 0, 17, 0.7);
    --color-half: rgba(0, 0, 17, 0.5);
    --color-light: rgba(0, 0, 17, 0.1);
    --color-lighter: rgba(0, 0, 17, 0.05);
    --color-lightest: rgb(255, 255, 255);
  }
}

/* Reset */
* {
  box-sizing: border-box;
}

button {
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  font: inherit;
}

h1,
h2,
h3,
h4,
p {
  margin: 0;
  text-wrap: balance;
}

/* Typography */
body {
  -webkit-font-smoothing: antialiased;
  background: var(--color-lightest);
  color: var(--color-darkest);
  font:
    500 100%/1 'DM Sans',
    system-ui,
    -apple-system,
    sans-serif;
  letter-spacing: 0.01em;
  text-rendering: geometricPrecision;
}

h1 {
  font-size: clamp(3rem, 10vw, 6rem);
  letter-spacing: -0.05em;
  line-height: 1;
}

h2 {
  font-size: 1.5rem;
  font-weight: 500;
  line-height: 1;
}

h3 {
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}

h4 {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1.25rem;
}

h1 + p,
h2 + p,
.lede {
  color: var(--color-half);
  font-size: 1.25rem;
  line-height: 1.5;
  max-width: 60rem;
}

a {
  background-image: linear-gradient(currentColor, currentColor);
  background-position: 0% 100%;
  background-repeat: no-repeat;
  background-size: 0% 1px;
  color: inherit;
  text-decoration: none;
  transition: background-size 0.3s;
}

a:hover {
  background-size: 100% 1px;
}

/* Layout */
body {
  margin: 0;
  overflow-x: hidden;
}

.layer {
  display: flex;
  justify-content: center;
  padding: var(--space-clamp);
}

.layer-inset {
  align-items: flex-start;
  flex: 1;
  max-width: 80rem;
}

section .layer-inset {
  display: flex;
  flex-direction: column;
  gap: var(--space-clamp);
}

/* Components */

/* Card */
.card {
  background: var(--color-lightest);
  border: 1px solid var(--color-light);
  border-radius: 0.5rem;
}

.card-header,
.card-section,
.card-footer {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.5rem;
}

.card-section {
  gap: 1rem;
  padding-top: 0;
}

/* Button */
.button {
  align-items: center;
  border: 1px solid transparent;
  border-radius: 0.375rem;
  cursor: pointer;
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  line-height: 1.25rem;
  padding: 9px 0.75rem;
}

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

.button .fa-angle-down,
.button .fa-sort {
  color: var(--color-half);
  font-size: 0.75rem;
}

.button-outline {
  background: var(--color-lightest);
  border: 1px solid var(--color-light);
}

.button-outline:hover {
  background: var(--color-lighter);
  border-color: var(--color-darkest);
}

.button-primary {
  background: var(--color-darkest);
  color: var(--color-lightest);
}

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

.button-secondary {
  background: var(--color-light);
}

.button.invert {
  background: var(--color-lightest);
}

.button.invert:hover {
  background: var(--color-lightest);
}

/* Form */
input,
select,
textarea {
  background: var(--color-lightest);
  border: 1px solid var(--color-light);
  border-radius: 0.375rem;
  color: var(--color-darkest);
  font: inherit;
  padding: 0.625rem 0.75rem;
}

input::placeholder,
textarea::placeholder {
  color: var(--color-half);
}

input[type='checkbox'],
input[type='radio'] {
  accent-color: var(--color-darkest);
  height: 1rem;
  padding: 0;
  width: 1rem;
}

label {
  align-items: center;
  display: flex;
  gap: 0.5rem;
}

/* Chat */
.bubble {
  background: var(--color-lighter);
  border-radius: 0.375rem;
  display: inline-flex;
  padding: 0.625rem 0.75rem;
}

.bubble-right {
  align-self: flex-end;
  background: var(--color-darkest);
  color: var(--color-lightest);
}

/* Divider */
hr {
  background: var(--color-lighter);
  border: none;
  height: 1px;
}

/* Font Sample */
.font-bold {
  font-weight: 700;
}

.font-sample {
  font-size: 2rem;
}

/* User */
.user-item {
  align-items: center;
  display: flex;
  gap: 1rem;
}

.user-item img {
  border-radius: 50%;
  height: 2.5rem;
  width: 2.5rem;
}

/* Avatar */
.avatar {
  border-radius: 50%;
  height: 2rem;
  width: 2rem;
}

/* Icons */
.icon {
  font-family: 'Font Awesome 7 Pro', sans-serif;
  font-size: 1rem;
  font-style: normal;
  font-weight: 400;
  line-height: 1.25rem;
}

.icon-small {
  font-family: 'Font Awesome 7 Pro', sans-serif;
  font-size: 0.75rem;
  font-style: normal;
  font-weight: 400;
  line-height: 1.25rem;
}

.icon-solid {
  font-family: 'Font Awesome 7 Pro', sans-serif;
  font-size: 1rem;
  font-style: normal;
  font-weight: 900;
  line-height: 1.25rem;
}

/* Badge */
.badge {
  background: var(--color-lighter);
  border-radius: 0.75rem;
  font-size: 0.625rem;
  letter-spacing: 0.1em;
  padding: 0.25rem 0.5rem;
  text-transform: uppercase;
}

/* Badge Accent */
.badge-accent {
  background: var(--color-accent);
  border-radius: 0.25rem;
  color: var(--color-lightest);
  padding: 0.25rem 0.5rem;
}

/* Search */
.search {
  align-items: center;
  border: 1px solid var(--color-light);
  border-radius: 0.375rem;
  display: flex;
  gap: 0.5rem;
  padding: 0.625rem 0.75rem;
}

.search:focus-within {
  border-color: var(--color-darkest);
}

.search input {
  background: none;
  border: none;
  flex: 1;
  outline: none;
  padding: 0;
}

/* Skeleton */
.skeleton {
  background: var(--color-lighter);
  border-radius: 0.375rem;
}

/* Swatch */
.swatch {
  border-radius: 0.5rem;
  height: 3rem;
  width: 3rem;
}

.swatch-darkest {
  background: var(--color-darkest);
}

.swatch-darker {
  background: var(--color-darker);
}

.swatch-half {
  background: var(--color-half);
}

.swatch-light {
  background: var(--color-light);
}

.swatch-lighter {
  background: var(--color-lighter);
}

.swatch-lightest {
  background: var(--color-lightest);
  border: 1px solid var(--color-light);
}

/* Switch */
.switch {
  background: var(--color-light);
  border: none;
  border-radius: 0.625rem;
  cursor: pointer;
  display: flex;
  height: 1.25rem;
  padding: 0.125rem;
  width: 2.25rem;
}

.switch::before {
  background: var(--color-lightest);
  border-radius: 50%;
  content: '';
  height: 1rem;
  transition: transform 0.2s;
  width: 1rem;
}

.switch[aria-checked='true'] {
  background: var(--color-darkest);
}

.switch[aria-checked='true']::before {
  transform: translateX(1rem);
}

/* Browser */
.browser {
  border: 1px solid var(--color-light);
  border-radius: 0.75rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.browser-bar {
  align-items: center;
  border-bottom: 1px solid var(--color-light);
  display: flex;
  gap: 0.5rem;
  height: 2.5rem;
  padding: 0 1rem;
}

.browser-bar::before {
  background: var(--color-light);
  border-radius: 50%;
  box-shadow:
    1rem 0 0 var(--color-light),
    2rem 0 0 var(--color-light);
  content: '';
  height: 0.75rem;
  width: 0.75rem;
}

.browser-content {
  padding: 1rem;
}

.browser-viewport {
  aspect-ratio: 16/9;
  background: var(--color-lightest);
}

/* App Shell */
.app-shell {
  background: var(--color-lighter);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  height: 100%;
  padding: 0.5rem;
}

.app-body {
  display: flex;
  flex: 1;
  gap: 0.5rem;
  overflow: hidden;
}

.app-document {
  flex: 1;
  overflow: auto;
  padding: 1rem;
}

.app-header {
  align-items: center;
  display: flex;
  gap: 0.5rem;
}

.app-header nav {
  display: flex;
}

.app-main {
  background: var(--color-lightest);
  border-radius: 0.5rem;
  display: flex;
  flex: 1;
  overflow: hidden;
}

.app-panel {
  background: var(--color-lightest);
  border-radius: 0.5rem;
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 0.5rem;
  overflow: auto;
  padding: 1rem;
}

.app-panels {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-left: 0.5rem;
  max-width: 25rem;
  width: 25rem;
}

.app-rail {
  border-right: 1px solid var(--color-light);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.5rem;
  width: 9rem;
}

.app-sidebar {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.5rem 0;
  width: 9rem;
}

/* Navigation */
.divider {
  color: var(--color-half);
}

.nav-button {
  align-items: center;
  border-radius: 0.5rem;
  color: var(--color-darker);
  cursor: pointer;
  display: flex;
  gap: 0.5rem;
  padding: 0.75rem;
}

.nav-button:hover {
  background: var(--color-lighter);
}

.nav-button.active {
  background: var(--color-lighter);
  color: var(--color-darkest);
}

.nav-button i {
  text-align: center;
  width: 1.5rem;
}

.nav-section {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.nav-section-content {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  overflow: hidden;
  transition:
    max-height 0.3s ease-out,
    opacity 0.2s ease-out;
}

.nav-section-header {
  align-items: center;
  color: var(--color-darker);
  cursor: pointer;
  display: flex;
  font-weight: 500;
  gap: 0.5rem;
  justify-content: space-between;
  padding: 0.75rem;
  user-select: none;
}

.nav-section-header:hover {
  background: var(--color-lighter);
  border-radius: 0.5rem;
}

.nav-section-header i {
  font-size: 0.75rem;
  transition: transform 0.2s;
}

.nav-section.collapsed .nav-section-content {
  max-height: 0;
  opacity: 0;
}

.nav-section.collapsed .nav-section-header i {
  transform: rotate(0deg);
}

.nav-section:not(.collapsed) .nav-section-content {
  max-height: 500px;
  opacity: 1;
}

.nav-section:not(.collapsed) .nav-section-header i {
  transform: rotate(90deg);
}

.selector {
  align-items: center;
  border-radius: 0.5rem;
  cursor: pointer;
  display: flex;
  gap: 0.5rem;
  padding: 0.5rem;
}

.selector:hover {
  background: var(--color-lighter);
}

.selector i {
  color: var(--color-half);
}

/* Options */
.option {
  align-items: center;
  border: 1px solid var(--color-light);
  border-radius: 0.5rem;
  cursor: pointer;
  display: flex;
  gap: 1rem;
  padding: 1.5rem;
}

.option:hover {
  background: var(--color-lighter);
}

.option i {
  font-size: 1.5rem;
}

.options {
  display: flex;
  gap: 1rem;
}

/* Page */
.page {
  display: none;
  flex-direction: column;
  min-height: 100%;
  padding: 2rem;
}

.page.active {
  display: flex;
}

/* Canvas */
.canvas {
  background: var(--color-lighter);
  flex: 1;
}

/* Utilities */
.fill {
  flex: 1;
}

.masonry {
  column-gap: 1rem;
  columns: 3;
}

.nav-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.row {
  display: flex;
  gap: 0.5rem;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.tile {
  break-inside: avoid;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.tile-wide {
  column-span: all;
}