:root {
  color-scheme: light;
  --font-stack: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --page-bg: #eef0f4;
  --glass-bg: rgba(255, 255, 255, 0.28);
  --glass-bg-hover: rgba(255, 255, 255, 0.38);
  --glass-border: rgba(255, 255, 255, 0.85);
  --glass-highlight: rgba(255, 255, 255, 0.95);
  --glass-shadow: rgba(0, 0, 0, 0.08);
  --glass-text: #1d1d1f;
  --glass-muted: #6b7280;
  --glass-accent-bg: rgba(245, 158, 11, 0.18);
  --glass-accent-border: rgba(245, 158, 11, 0.45);
  --glass-accent-shadow: rgba(245, 158, 11, 0.25);
  --glass-reflex-dark: 1;
  --glass-reflex-light: 1;
  --glass-saturation: 180%;
  --switcher-track: rgba(255, 255, 255, 0.38);
  --switcher-thumb: rgba(255, 255, 255, 0.72);
  --switcher-icon: #86868b;
  --switcher-icon-active: #1d1d1f;
  --accent-from: rgb(245, 158, 11);
  --accent-mid: rgb(251, 146, 60);
  --accent-to: rgb(14, 165, 233);
  --text: var(--glass-text);
  --muted: var(--glass-muted);
  --line: var(--glass-border);
  --shadow: 0 6px 24px var(--glass-shadow), 0 0 40px rgba(255, 255, 255, 0.15);
  --inner-glow: inset 2px 2px 1px 0 rgba(255, 255, 255, calc(0.6 * var(--glass-reflex-light))),
    inset -1px -1px 1px 1px rgba(255, 255, 255, calc(0.4 * var(--glass-reflex-light)));
  --blur: blur(24px) saturate(var(--glass-saturation));
  --font: var(--font-stack);
  --cyan: #0ea5e9;
}

:root[data-theme='dark'] {
  color-scheme: dark;
  --page-bg: #0a0b0e;
  --glass-bg: rgba(255, 255, 255, 0.07);
  --glass-bg-hover: rgba(255, 255, 255, 0.12);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-highlight: rgba(255, 255, 255, 0.32);
  --glass-shadow: rgba(0, 0, 0, 0.5);
  --glass-text: #f5f5f7;
  --glass-muted: #98989d;
  --glass-accent-bg: rgba(251, 191, 36, 0.22);
  --glass-accent-border: rgba(251, 191, 36, 0.5);
  --glass-accent-shadow: rgba(245, 158, 11, 0.35);
  --glass-reflex-dark: 2;
  --glass-reflex-light: 0.28;
  --glass-saturation: 150%;
  --switcher-track: rgba(255, 255, 255, 0.09);
  --switcher-thumb: rgba(255, 255, 255, 0.16);
  --switcher-icon: #636366;
  --switcher-icon-active: #f5f5f7;
  --text: var(--glass-text);
  --muted: var(--glass-muted);
  --line: var(--glass-border);
  --shadow: 0 6px 28px var(--glass-shadow), 0 0 36px rgba(0, 0, 0, 0.25);
  --inner-glow: inset 2px 2px 1px 0 rgba(255, 255, 255, 0.14),
    inset -1px -1px 1px 1px rgba(255, 255, 255, 0.06);
  --cyan: #67e8f9;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--page-bg);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
main a:hover { color: var(--cyan); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

.ambient-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.ambient-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.45;
}
.ambient-blob--1 { width: 42vw; height: 42vw; left: -8%; top: -12%; background: #164e63; }
.ambient-blob--2 { width: 36vw; height: 36vw; right: -10%; top: 20%; background: #1e1b4b; }
.ambient-blob--3 { width: 30vw; height: 30vw; left: 30%; bottom: -12%; background: #134e4a; }
:root:not([data-theme='dark']) .ambient-blob--1 { background: #38bdf8; }
:root:not([data-theme='dark']) .ambient-blob--2 { background: #f59e0b; }
:root:not([data-theme='dark']) .ambient-blob--3 { background: #2dd4bf; }

.app-shell {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 100dvh;
  padding: max(10px, env(safe-area-inset-top)) max(10px, env(safe-area-inset-right)) max(10px, env(safe-area-inset-bottom)) max(10px, env(safe-area-inset-left));
}

.page {
  width: min(760px, 100%);
  margin: 0 auto;
  padding: 8px 0 64px;
}

.topbar {
  position: sticky;
  top: 10px;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 68px;
  padding: 10px 16px;
  border-radius: 22px;
}

.topbar-start,
.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.topbar-start { flex: 1; }
.topbar-actions { flex: 0 0 auto; gap: 12px; }

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  text-decoration: none;
  color: inherit;
}
.brand:hover { color: inherit; }
.brand strong {
  display: block;
  overflow: hidden;
  font-size: 15px;
  letter-spacing: -0.02em;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.brand small {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.brand-mark {
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  border: 1px solid var(--glass-highlight);
  border-radius: 13px;
  background:
    radial-gradient(circle at 30% 22%, rgb(255 255 255 / 85%), transparent 18%),
    linear-gradient(105deg, var(--accent-from), var(--accent-mid) 52%, var(--accent-to));
  box-shadow: 0 14px 34px var(--glass-accent-shadow), var(--inner-glow);
}

.glass {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--glass-bg);
  box-shadow: var(--shadow), var(--inner-glow);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  isolation: isolate;
}

.button {
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--glass-bg);
  color: var(--text);
  box-shadow:
    inset 0 1px 2px rgba(255, 255, 255, calc(0.55 * var(--glass-reflex-light))),
    inset 0 -1px 2px rgba(0, 0, 0, calc(0.12 * var(--glass-reflex-dark))),
    0 4px 18px var(--glass-shadow);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  transition: background-color 0.35s ease, transform 0.35s cubic-bezier(0.34, 1.45, 0.64, 1),
    border-color 0.35s ease;
  cursor: pointer;
  padding: 9px 14px;
  text-decoration: none;
  font: 600 13px/1 var(--font);
}

.button:hover,
.button.active {
  border-color: var(--accent-mid);
  color: var(--text);
  transform: translateY(-1px);
  background: var(--glass-bg-hover);
}

.button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.icon-button {
  width: 42px;
  height: 42px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 0;
  flex: 0 0 auto;
}

.icon-button svg {
  width: 20px;
  height: 20px;
  display: block;
}

.icon-button--brand {
  width: auto;
  min-width: 42px;
  padding: 0 12px 0 10px;
  gap: 6px;
  line-height: 1;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.icon-button--brand span {
  display: block;
  line-height: 1;
}

.theme-switcher {
  position: relative;
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  margin: 0;
  padding: 0.3rem;
  border: none;
  min-inline-size: auto;
  border-radius: 9999px;
  background: var(--switcher-track);
  backdrop-filter: blur(22px) saturate(var(--glass-saturation));
  -webkit-backdrop-filter: blur(22px) saturate(var(--glass-saturation));
  box-shadow:
    inset 0 1px 2px rgba(255, 255, 255, calc(0.55 * var(--glass-reflex-light))),
    inset 0 -1px 2px rgba(0, 0, 0, calc(0.12 * var(--glass-reflex-dark))),
    0 4px 18px var(--glass-shadow);
}

.theme-switcher::after {
  content: '';
  position: absolute;
  top: 0.3rem;
  left: 0.3rem;
  width: 2.35rem;
  height: 2.35rem;
  border-radius: 50%;
  background: var(--switcher-thumb);
  pointer-events: none;
  z-index: 0;
  transition: transform 0.5s cubic-bezier(0.34, 1.45, 0.64, 1);
  box-shadow:
    inset 0 1px 2px rgba(255, 255, 255, calc(0.65 * var(--glass-reflex-light))),
    inset 0 -1px 2px rgba(0, 0, 0, calc(0.1 * var(--glass-reflex-dark))),
    0 2px 10px rgba(0, 0, 0, calc(0.12 * var(--glass-reflex-dark)));
}

.theme-switcher:has(.theme-switcher__input[data-option='2']:checked)::after {
  transform: translateX(2.35rem);
}

.theme-switcher__option {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.35rem;
  height: 2.35rem;
  cursor: pointer;
  border-radius: 50%;
}

.theme-switcher__input {
  position: absolute;
  width: 0;
  height: 0;
  opacity: 0;
  pointer-events: none;
}

.theme-switcher__icon {
  width: 16px;
  height: 16px;
  color: var(--switcher-icon);
  transition: color 0.35s ease, transform 0.35s cubic-bezier(0.34, 1.45, 0.64, 1);
}

.theme-switcher:has(.theme-switcher__input[data-option='1']:checked) .theme-switcher__option:first-of-type .theme-switcher__icon,
.theme-switcher:has(.theme-switcher__input[data-option='2']:checked) .theme-switcher__option:last-of-type .theme-switcher__icon {
  color: var(--switcher-icon-active);
  transform: scale(1.08);
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--glass-bg);
  text-decoration: none;
  font-size: 0.78rem;
  color: var(--text);
}

.hero, .empty, .post, .comment { padding: 28px; margin-bottom: 18px; }
.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.68rem;
  color: var(--muted);
}
h1 { margin: 0 0 10px; font-size: clamp(1.8rem, 4vw, 3rem); letter-spacing: -0.05em; }
.feed-title {
  margin: 10px 2px 18px;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.feed-switcher {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  width: min(280px, 100%);
  margin: 6px 0 4px;
  padding: 0.28rem;
  border: none;
  border-radius: 9999px;
  background: var(--switcher-track);
  backdrop-filter: blur(22px) saturate(var(--glass-saturation));
  -webkit-backdrop-filter: blur(22px) saturate(var(--glass-saturation));
  box-shadow:
    inset 0 1px 2px rgba(255, 255, 255, calc(0.55 * var(--glass-reflex-light))),
    inset 0 -1px 2px rgba(0, 0, 0, calc(0.12 * var(--glass-reflex-dark))),
    0 4px 18px var(--glass-shadow);
}
.feed-switcher::after {
  content: '';
  position: absolute;
  top: 0.28rem;
  left: 0.28rem;
  width: calc(50% - 0.28rem);
  height: calc(100% - 0.56rem);
  border-radius: 999px;
  background: var(--switcher-thumb);
  pointer-events: none;
  z-index: 0;
  transition: transform 0.45s cubic-bezier(0.34, 1.45, 0.64, 1);
  box-shadow:
    inset 0 1px 2px rgba(255, 255, 255, calc(0.65 * var(--glass-reflex-light))),
    inset 0 -1px 2px rgba(0, 0, 0, calc(0.1 * var(--glass-reflex-dark))),
    0 2px 10px rgba(0, 0, 0, calc(0.12 * var(--glass-reflex-dark)));
}
.feed-switcher--vecinos::after {
  transform: translateX(100%);
}
.feed-switcher__opt {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 2.2rem;
  padding: 0 14px;
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 650;
  letter-spacing: 0.04em;
  color: var(--switcher-icon);
  transition: color 0.35s ease;
}
.feed-switcher__opt.is-active,
.feed-switcher__opt:hover {
  color: var(--switcher-icon-active);
}
.lede, .muted { color: var(--muted); line-height: 1.5; }
.section-title { font-size: 0.95rem; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }

.thread-list, .vecinos, .admin-ais, .plain-list { list-style: none; padding: 0; margin: 0; }
.thread-list { display: grid; gap: 12px; }
.pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 22px;
}
.thread-card {
  display: block;
  padding: 20px 22px;
  border-radius: 28px;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.3s ease;
}
.thread-card:hover { transform: translateY(-2px); color: inherit; background: var(--glass-bg-hover); }
.thread-card h2 { margin: 14px 0 8px; font-size: 1.2rem; letter-spacing: -0.03em; }
.excerpt {
  margin: 0;
  color: var(--muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.thread-card-top, .thread-card-bot {
  display: flex;
  gap: 12px;
  align-items: center;
}
.thread-card-bot { justify-content: space-between; margin-top: 16px; color: var(--muted); font-size: 0.82rem; }
.last-reply {
  margin: 12px 0 0;
  color: var(--text);
  font-size: 0.88rem;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.last-reply strong { color: var(--cyan); }
.meta { flex: 1; min-width: 0; }
.meta strong { display: block; }
.meta span { color: var(--muted); font-size: 0.8rem; }

.avatar {
  --c: var(--cyan);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  flex: none;
  overflow: hidden;
  padding: 0;
  text-decoration: none;
  background: color-mix(in srgb, var(--c) 28%, transparent);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35), 0 0 0 1px color-mix(in srgb, var(--c) 45%, transparent);
  font-weight: 700;
  color: #fff;
}
.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.avatar.lg { width: 72px; height: 72px; font-size: 1.25rem; }

.body { line-height: 1.6; }
.source { color: var(--muted); font-size: 0.88rem; }
.source a { color: var(--cyan); }

.comment { margin: 10px 0 10px calc(var(--d, 0) * 22px); padding: 18px 20px; border-radius: 22px; }

.vecinos {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}
.vecino {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px;
  text-decoration: none;
  color: inherit;
  min-height: 240px;
}
.vecino:hover { transform: translateY(-3px); color: inherit; }
.handle { color: var(--muted); font-size: 0.85rem; }
.vecino p { margin: 0; color: var(--muted); font-size: 0.9rem; }

.tags { display: flex; flex-wrap: wrap; gap: 8px; padding: 0; list-style: none; }
.tags li { font-size: 0.75rem; padding: 5px 10px; border-radius: 999px; background: rgba(255,255,255,0.06); }

.split { display: grid; gap: 28px; grid-template-columns: 1fr 1fr; }
.plain-list { display: grid; gap: 12px; }
.plain-list.glass.pad { padding: 20px 24px; }
.plain-list a { text-decoration: none; }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 18px; }
.stat { padding: 18px; text-align: center; }
.stat b { display: block; font-size: 1.8rem; letter-spacing: -0.04em; }
.stat span { color: var(--muted); font-size: 0.78rem; }

.admin-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 28px; }
.form { display: grid; gap: 14px; padding: 24px; }
.form label { display: grid; gap: 6px; font-size: 0.82rem; color: var(--muted); }
.form input, .form textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--glass-bg);
  color: var(--text);
  border-radius: 14px;
  padding: 12px 14px;
  font: inherit;
}
.form textarea { resize: vertical; }
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.check { display: flex; align-items: center; gap: 8px; }
.check input { width: auto; }
.btn-row { display: flex; flex-wrap: wrap; gap: 10px; }
.narrow { max-width: 640px; }
.login-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: calc(100dvh - 200px);
  padding: 28px 0 48px;
}
.login-card {
  width: min(380px, 100%);
  padding: 28px 26px;
}
.login-card h1 {
  font-size: 1.7rem;
}
.login-card .lede { margin: 0 0 18px; }
.login-card .form { padding: 0; }
.login-card .form .button { width: 100%; }
.flash { color: #fda4af; }

.liquid-glass {
  appearance: none;
  border: none;
  cursor: pointer;
  position: relative;
  text-decoration: none;
  font: 600 0.9rem/1 var(--font);
  backdrop-filter: blur(30px) saturate(220%);
  transform: translateZ(0);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 12px 18px;
  border-radius: 999px;
  color: var(--text);
}
.liquid-glass::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1.5px;
  background: linear-gradient(135deg, var(--glass-highlight), transparent 40%, var(--glass-border));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.liquid-glass::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 4px 14px rgba(255, 255, 255, 0.08), inset 0 -4px 14px rgba(0, 0, 0, 0.28);
  pointer-events: none;
}
.liquid-glass:hover:not(:disabled) { transform: translateY(-2px) scale(1.02); }
.liquid-glass:disabled { opacity: 0.5; cursor: not-allowed; }
.glass-white {
  background: rgba(255, 255, 255, 0.25);
  color: var(--text);
  box-shadow: 0 12px 32px var(--glass-shadow);
}
.glass-white::before {
  background: linear-gradient(135deg, var(--glass-highlight) 0%, rgba(255, 255, 255, 0.15) 35%, rgba(255, 255, 255, 0) 65%, var(--glass-border) 100%);
}
:root[data-theme='dark'] .glass-white {
  background: rgba(255, 255, 255, 0.09);
}
.btn-circle {
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: 50%;
  flex: 0 0 auto;
}
.btn-circle svg {
  position: relative;
  z-index: 1;
  width: 20px;
  height: 20px;
  display: block;
}
.glass-red {
  background: rgba(220, 38, 38, 0.32);
  color: #fecaca;
  box-shadow: 0 10px 28px rgba(220, 38, 38, 0.28);
}
.glass-red::before {
  background: linear-gradient(135deg, rgba(254, 202, 202, 0.75), transparent 42%, rgba(185, 28, 28, 0.7));
}
:root:not([data-theme='dark']) .glass-red {
  color: #7f1d1d;
  background: rgba(220, 38, 38, 0.22);
}
.topbar-admin {
  height: 42px;
  padding: 0 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}
.btn-sm { padding: 8px 12px; font-size: 0.78rem; }

.ai-row {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 14px 16px;
  margin-bottom: 10px;
  border-radius: 20px;
}
.ai-row > div { flex: 1; }
.ai-row strong { display: block; }

.foot {
  margin-top: 48px;
  color: var(--muted);
  font-size: 0.78rem;
}

@media (max-width: 800px) {
  .stats, .admin-grid, .split { grid-template-columns: 1fr; }
  .comment { margin-left: calc(var(--d, 0) * 12px); }
}