:root {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
  color-scheme: dark;
  --bg: #0c1015;
  --bg-soft: #11171e;
  --surface: #161c24;
  --surface-raised: #1c242e;
  --text: #edf0f5;
  --muted: #9ca7b7;
  --faint: #718094;
  --border: #293440;
  --accent: #ff633f;
  --accent-hover: #ff795a;
  --accent-text: #17120f;
  --focus: #8bb8ff;
  --error: #ff8f86;
  --shadow: 0 22px 70px rgb(0 0 0 / 25%);
  --title-gradient: linear-gradient(105deg, #edf0f5 4%, #ffc0ac 48%, #ff633f 100%);
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #f3f5f7;
  --bg-soft: #edf0f3;
  --surface: #ffffff;
  --surface-raised: #f8fafc;
  --text: #17202b;
  --muted: #5d6877;
  --faint: #788493;
  --border: #dbe1e8;
  --accent: #e94f2b;
  --accent-hover: #d94320;
  --accent-text: #ffffff;
  --focus: #236ac5;
  --error: #b42318;
  --shadow: 0 22px 70px rgb(36 48 64 / 10%);
  --title-gradient: linear-gradient(105deg, #17202b 8%, #9e392b 58%, #e94f2b 100%);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 220ms ease, color 220ms ease;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(color-mix(in srgb, var(--border) 24%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--border) 24%, transparent) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
  opacity: 0.35;
}

.ambient {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.ambient span {
  position: absolute;
  width: 38rem;
  height: 38rem;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.12;
  will-change: transform;
}
.ambient span:first-child {
  top: -22rem;
  left: calc(50% - 28rem);
  background: var(--accent);
  animation: drift-one 18s ease-in-out infinite alternate;
}
.ambient span:last-child {
  top: 8rem;
  right: -28rem;
  background: #4b84b7;
  opacity: 0.08;
  animation: drift-two 22s ease-in-out infinite alternate;
}
html[data-theme="light"] .ambient span { opacity: 0.1; }

button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 30;
  padding: 0.65rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  transform: translateY(-180%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  width: min(1120px, calc(100% - 2rem));
  min-height: 5.25rem;
  margin: 0 auto;
  padding: 0 0.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid color-mix(in srgb, var(--border) 80%, transparent);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  color: var(--text);
  text-decoration: none;
  font-size: 1.45rem;
  font-weight: 750;
  line-height: 1;
  letter-spacing: -0.045em;
}
.brand-name { color: var(--text); }
.brand-dot { color: var(--accent); margin-left: 0.025em; }
.theme-button {
  margin-left: auto;
  padding: 0.48rem 0.8rem;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.78rem;
}
.theme-button:hover { color: var(--text); background: var(--surface); border-color: var(--faint); }

main, footer { position: relative; z-index: 1; }
main {
  width: min(880px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 4.5rem 0 3.5rem;
}

.search-panel {
  max-width: 790px;
  margin-bottom: 2rem;
  animation: rise 560ms cubic-bezier(0.2, 0.75, 0.25, 1) both;
}
.eyebrow {
  display: block;
  margin: 0 0 1rem;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}
h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(2.65rem, 8vw, 5.25rem);
  line-height: 0.98;
  letter-spacing: -0.068em;
  font-weight: 790;
}
h1 span {
  display: inline-block;
  padding-bottom: 0.08em;
  color: var(--accent);
  background: var(--title-gradient);
  background-size: 180% 100%;
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: title-shift 12s ease-in-out infinite alternate;
}
.intro {
  max-width: 610px;
  margin: 1.35rem 0 2rem;
  color: var(--muted);
  font-size: 1.02rem;
}

form { margin-top: 2.1rem; }
form label {
  display: block;
  margin: 0 0 0.55rem;
  font-size: 0.78rem;
  font-weight: 680;
  letter-spacing: 0.01em;
}
.input-row {
  display: flex;
  gap: 0.65rem;
  padding: 0.45rem;
  border: 1px solid transparent;
  border-radius: 0.9rem;
  background:
    linear-gradient(var(--surface), var(--surface)) padding-box,
    linear-gradient(115deg, var(--border), color-mix(in srgb, var(--accent) 28%, var(--border)), var(--border)) border-box;
  box-shadow: var(--shadow);
  transition: box-shadow 180ms ease, background 180ms ease, transform 180ms ease;
}
.input-row:focus-within {
  background:
    linear-gradient(var(--surface), var(--surface)) padding-box,
    linear-gradient(115deg, var(--accent), color-mix(in srgb, var(--focus) 70%, var(--accent)), var(--accent)) border-box;
  box-shadow: 0 20px 65px color-mix(in srgb, var(--accent) 10%, transparent);
}
input {
  width: 100%;
  min-width: 0;
  padding: 0.72rem 0.85rem;
  color: var(--text);
  background: transparent;
  border: 0;
  outline: 0;
  font-size: 0.9rem;
}
input::placeholder { color: var(--faint); }
button, .button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.58rem;
  font-weight: 680;
  font-size: 0.84rem;
  text-decoration: none;
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}
#submit-button {
  min-width: 7.8rem;
  flex: 0 0 auto;
  padding: 0.72rem 1.15rem;
  color: var(--accent-text);
  background: linear-gradient(115deg, var(--accent), var(--accent-hover), var(--accent));
  background-size: 180% 100%;
  border: 1px solid var(--accent);
  box-shadow: 0 6px 20px color-mix(in srgb, var(--accent) 16%, transparent);
}
#submit-button:hover:not(:disabled) {
  background-position: 100% 0;
  border-color: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 9px 26px color-mix(in srgb, var(--accent) 22%, transparent);
}
#submit-button:active:not(:disabled) { transform: translateY(0); }
button:disabled { opacity: 0.58; cursor: wait; }
.form-hint {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin: 0.75rem 0 0;
  color: var(--faint);
  font-size: 0.72rem;
}
.form-hint span:last-child { text-align: right; }

.status {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  margin: 1.5rem 0;
  padding: 1rem 1.1rem;
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  animation: rise 240ms ease-out both;
}
.status strong { font-size: 0.9rem; }
.status p { margin: 0.2rem 0 0; color: var(--muted); font-size: 0.84rem; }
.status.is-error { border-color: color-mix(in srgb, var(--error) 50%, var(--border)); }
.status.is-error strong { color: var(--error); }
.spinner {
  width: 1.1rem;
  height: 1.1rem;
  flex: 0 0 auto;
  margin-top: 0.2rem;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 700ms linear infinite;
}
.status.is-error .spinner { display: none; }

#viewer { animation: rise 360ms ease-out both; }
.post-card, .comment-card {
  background: color-mix(in srgb, var(--surface) 97%, transparent);
  border: 1px solid var(--border);
  border-radius: 0.85rem;
}
.post-card {
  position: relative;
  overflow: hidden;
  padding: clamp(1.25rem, 4vw, 2rem);
  box-shadow: 0 16px 50px rgb(0 0 0 / 8%);
}
.post-card::before {
  content: "";
  position: absolute;
  inset: 0 12% auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.7;
}
.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  color: var(--muted);
  font-size: 0.77rem;
}
.subreddit { color: var(--text); font-weight: 720; }
.post-card h2 {
  margin: 0.85rem 0 1.25rem;
  font-size: clamp(1.35rem, 4vw, 2rem);
  line-height: 1.25;
  letter-spacing: -0.025em;
  overflow-wrap: anywhere;
}
.rendered-content {
  color: var(--text);
  font-size: 0.95rem;
  overflow-wrap: anywhere;
}
.rendered-content > :first-child { margin-top: 0; }
.rendered-content > :last-child { margin-bottom: 0; }
.rendered-content div:only-child { display: contents; }
.rendered-content a { color: var(--focus); text-underline-offset: 0.18em; }
.rendered-content a:hover { text-decoration-thickness: 2px; }
.rendered-content blockquote {
  margin: 1rem 0;
  padding-left: 1rem;
  border-left: 3px solid var(--border);
  color: var(--muted);
}
.rendered-content pre {
  max-width: 100%;
  overflow-x: auto;
  padding: 1rem;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 0.55rem;
}
.rendered-content code { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 0.87em; }
.rendered-content table { display: block; max-width: 100%; overflow-x: auto; border-collapse: collapse; }
.rendered-content th, .rendered-content td { padding: 0.45rem 0.65rem; border: 1px solid var(--border); text-align: left; }
.empty-body { color: var(--muted); font-style: italic; }
.post-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.6rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--border);
}
.button-link, .secondary-button { padding: 0.55rem 0.85rem; }
.button-link { color: var(--accent-text); background: var(--accent); border: 1px solid var(--accent); }
.button-link:hover { background: var(--accent-hover); transform: translateY(-1px); }
.secondary-button { color: var(--text); background: transparent; border: 1px solid var(--border); }
.secondary-button:hover { background: var(--surface-raised); border-color: var(--faint); }

.comments-section { margin-top: 1.75rem; }
.comments-heading { display: flex; align-items: baseline; gap: 0.75rem; margin: 0 0 0.8rem; }
.comments-heading h3 { margin: 0; font-size: 1.05rem; }
.comments-heading span { color: var(--muted); font-size: 0.76rem; }
.comment-card {
  padding: 1.1rem 1.25rem;
  margin-bottom: 0.7rem;
  animation: comment-in 340ms ease-out both;
  animation-delay: calc(var(--index, 0) * 35ms);
  transition: border-color 160ms ease, background-color 160ms ease;
}
.comment-card:hover { border-color: color-mix(in srgb, var(--faint) 65%, var(--border)); background: var(--surface-raised); }
.comment-meta { color: var(--muted); font-size: 0.75rem; }
.comment-author { color: var(--text); font-weight: 680; }
.comment-card .rendered-content { margin-top: 0.6rem; font-size: 0.9rem; }
.comment-link { display: inline-block; margin-top: 0.65rem; color: var(--faint); font-size: 0.72rem; text-underline-offset: 0.15em; }
.empty-comments { padding: 1.25rem; color: var(--muted); border: 1px dashed var(--border); border-radius: 0.75rem; font-size: 0.88rem; }
.feed-note { color: var(--faint); font-size: 0.73rem; }

footer {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.4rem 0 2rem;
  display: flex;
  gap: 1rem;
  color: var(--faint);
  border-top: 1px solid var(--border);
  font-size: 0.73rem;
}
footer span { color: var(--muted); font-weight: 750; }
footer p { margin: 0; }

:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes rise {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes comment-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes title-shift {
  from { background-position: 0% 50%; }
  to { background-position: 100% 50%; }
}
@keyframes drift-one {
  from { transform: translate3d(-4%, 0, 0) scale(0.95); }
  to { transform: translate3d(14%, 8%, 0) scale(1.08); }
}
@keyframes drift-two {
  from { transform: translate3d(0, -5%, 0) scale(1); }
  to { transform: translate3d(-16%, 12%, 0) scale(1.12); }
}

@media (max-width: 640px) {
  .site-header { min-height: 4.5rem; }
  main { padding-top: 3rem; }
  .input-row { flex-direction: column; padding: 0.5rem; }
  #submit-button { width: 100%; }
  .form-hint { flex-direction: column; gap: 0.2rem; }
  .form-hint span:last-child { text-align: left; }
  footer { flex-direction: column; gap: 0.35rem; }
  .post-card { padding: 1.15rem; }
  .comment-card { padding: 1rem; }
  .ambient span { width: 28rem; height: 28rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .ambient span { will-change: auto; }
}