/* Theme variables */
:root {
  --bg-primary: #ffffff;
  --bg-secondary: #fafafa;
  --text-primary: #171717;
  --text-secondary: #737373;
  --border: #e5e5e5;
}

[data-theme="dark"] {
  --bg-primary: #0a0a0a;
  --bg-secondary: #171717;
  --text-primary: #fafafa;
  --text-secondary: #a3a3a3;
  --border: #262626;
}

/* Reset and base styles */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overscroll-behavior: none;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  background: var(--bg-primary);
  color: var(--text-primary);
  margin: 0;
  padding: 4rem 1.5rem;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  transition: background 0.2s ease, color 0.2s ease;
}

h1, h2, h3 {
  font-weight: 500;
  letter-spacing: -0.02em;
  margin: 0;
}

h1 {
  font-size: 1.25rem;
}

h2 {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin: 3rem 0 1rem;
}

h3 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin: 1.5rem 0 0.5rem;
}

p {
  margin: 0 0 1rem;
  color: var(--text-secondary);
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

li {
  margin: 0.25rem 0;
}

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

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

section {
  margin-bottom: 2rem;
}

.about p {
  max-width: 480px;
}

/* Static crawlable profile (index.html), removed once the app mounts */
.static-profile h1 {
  margin-bottom: 1rem;
}

.static-profile p {
  color: var(--text-primary);
  max-width: 480px;
}

.static-profile ul {
  margin-top: 1.5rem;
}

.static-profile a {
  color: var(--text-secondary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.static-profile a:hover {
  color: var(--text-primary);
}

/* Link with animated underline */
.link {
  position: relative;
  display: inline;
}

.link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 0;
  height: 1px;
  background: var(--text-primary);
  transition: width 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.link:hover::after {
  width: 100%;
}

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

/* Theme toggle */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--text-secondary);
  transition: color 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.icon-sun {
  display: none;
}

.icon-moon {
  display: block;
}

[data-theme="dark"] .icon-sun {
  display: block;
}

[data-theme="dark"] .icon-moon {
  display: none;
}

/* View transition: sliding curtain theme switch */
::view-transition-old(root) {
  animation: curtain-slide 300ms cubic-bezier(0.61, 0.03, 0.08, 1) forwards;
  z-index: 2;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

::view-transition-new(root) {
  animation: none;
  z-index: 1;
}

@keyframes curtain-slide {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(100vh);
  }
}

/* Preview card */
.preview-card {
  position: fixed;
  z-index: 1000;
  pointer-events: none;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.15s ease, transform 0.15s ease;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  border: 1px solid var(--border);
  background: var(--bg-secondary);
}

.preview-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.preview-card.interactive {
  width: min(400px, calc(100vw - 32px));
  height: min(250px, 42vh);
  pointer-events: auto;
  border-color: var(--border);
}

.preview-card iframe {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  background: var(--bg-secondary);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.12s ease;
}

.preview-card.interactive iframe {
  width: 200%;
  height: 200%;
  transform: scale(0.5);
  transform-origin: top left;
}

.preview-card iframe.snapshot-frame.active.ready {
  opacity: 1;
  pointer-events: auto;
}

.preview-card.fading {
  opacity: 0;
  transform: translateY(0);
}

/* Dark images get white border, light images get black border */
.preview-card.dark-image {
  border-color: #ffffff;
}

.preview-card.light-image {
  border-color: #000000;
}

.preview-card img {
  display: block;
  width: 320px;
  height: 213px;
  object-fit: cover;
  background: var(--bg-secondary);
  border-radius: inherit;
}

.preview-card.interactive .preview-poster {
  width: 100%;
  height: 100%;
  border-radius: 0;
}

[data-theme="dark"] .preview-card {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

@media (hover: none), (pointer: coarse) {
  .preview-card {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .preview-card {
    transition: none;
  }
}

/* Days counter */
.days-counter {
  margin-top: 3rem;
  text-align: center;
}

.counter-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

.counter-value {
  font-size: 3rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin: 0;
  font-variant-numeric: tabular-nums;
}

/* Claude spinner page */
@property --shimmer-pos {
  syntax: '<percentage>';
  inherits: false;
  initial-value: 110%;
}

.claude-hero p {
  max-width: 480px;
}

.spinner-demo {
  margin: 2rem 0;
  font-family: 'Menlo', 'Monaco', 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  font-size: 14px;
}

.spinner-line {
  display: flex;
  align-items: baseline;
}

.spinner-symbol {
  color: #D77757;
  width: 2ch;
  display: inline-block;
  flex-shrink: 0;
}

.spinner-verb {
  min-width: 0;
}

.spinner-verb-text {
  --shimmer-pos: 110%;
  background: linear-gradient(
    90deg,
    #D77757 0%,
    #D77757 calc(var(--shimmer-pos) - 8%),
    #EB9F7F var(--shimmer-pos),
    #D77757 calc(var(--shimmer-pos) + 8%),
    #D77757 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 3s linear infinite;
}

@keyframes shimmer {
  0% { --shimmer-pos: 110%; }
  100% { --shimmer-pos: -10%; }
}

.spinner-meta {
  color: #666;
  margin-left: 1ch;
  flex-shrink: 0;
  font-size: 13px;
}

.claude-install {
  margin-top: 2rem;
}

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

.install-header h2 {
  margin: 0;
}

.copy-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.8rem;
  font-family: inherit;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.copy-btn:hover {
  color: var(--text-primary);
  border-color: var(--text-secondary);
}

.copy-btn.copied {
  color: #4EBA65;
  border-color: #4EBA65;
}

.install-code {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  margin-top: 1rem;
  overflow-x: auto;
  font-family: 'Menlo', 'Monaco', 'Cascadia Code', 'Fira Code', 'Consolas', monospace;
  font-size: 13px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text-primary);
}

.install-code code {
  font-family: inherit;
}

/* Beta blog — raw white text on black, nothing else */
.beta-page {
  position: fixed;
  inset: 0;
  background: #000;
  color: #fff;
  overflow-y: auto;
  -webkit-font-smoothing: antialiased;
}

.beta-content {
  max-width: 600px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

.beta-content h1 {
  font-size: 1.5rem;
  font-weight: 400;
  color: #fff;
  margin-bottom: 1.5rem;
}

.beta-content h2 {
  font-size: 1rem;
  font-weight: 400;
  color: #fff;
  text-transform: none;
  letter-spacing: normal;
  margin: 2rem 0 0.75rem;
}

.beta-content p {
  color: #ccc;
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.beta-content strong {
  color: #fff;
  font-weight: 600;
}

.beta-content a {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.beta-content a:hover {
  color: #ccc;
}

.beta-content ul {
  list-style: disc;
  padding-left: 1.25rem;
  margin-bottom: 1.25rem;
}

.beta-content li {
  color: #ccc;
  line-height: 1.7;
  margin: 0.35rem 0;
}

.beta-back {
  margin-bottom: 2rem;
}

.beta-back a {
  color: #666;
  font-size: 0.875rem;
  text-decoration: none;
}

.beta-back a:hover {
  color: #fff;
}