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

:root {
  --bg: #050405;
  --surface: #0e0b0c;
  --surface-hover: #161012;
  --header: #080607;
  --border: #2a1c1f;
  --text: #e8e2dc;
  --muted: #6e6366;
  --soft: #a89a9c;
  --accent: #9b1c2e;
  --danger: #c43a4a;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, "Cascadia Code", "Courier New", monospace;
  --radius: 2px;
  --max: 860px;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  -webkit-tap-highlight-color: rgba(155, 28, 46, 0.2);
  min-height: 100vh;
  font-family: var(--font);
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(155, 28, 46, 0.18), transparent 55%),
    var(--bg);
  color: var(--text);
  line-height: 1.55;
  letter-spacing: 0.01em;
}

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 50;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.seal {
  pointer-events: none;
  position: fixed;
  right: 4vw;
  bottom: 6vh;
  width: min(28vw, 180px);
  height: min(28vw, 180px);
  z-index: 0;
  opacity: 0.045;
  background: url("/mark.svg") center / contain no-repeat;
  filter: grayscale(0.2);
}

main,
.site-header,
.site-footer {
  position: relative;
  z-index: 1;
}

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

a:hover {
  color: var(--danger);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.35rem;
  background: color-mix(in srgb, var(--header) 88%, transparent);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  text-decoration: none;
}

.brand-mark {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  opacity: 0.9;
}

.site-nav {
  display: flex;
  gap: 1.4rem;
}

.site-nav a {
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--text);
}

main {
  width: min(100% - 2.2rem, var(--max));
  margin: 0 auto;
  padding: 2.75rem 0 4rem;
}

.hero,
.hubs {
  margin-bottom: 4rem;
}

.join {
  margin-bottom: 3rem;
}

.eyebrow {
  margin: 0 0 0.55rem;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}

.join .eyebrow {
  margin-bottom: 0.85rem;
}

h1,
h2 {
  margin: 0 0 0.65rem;
  color: var(--text);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 1.35rem;
  font-weight: 600;
}

.lede {
  margin: 0 0 1.5rem;
  color: var(--muted);
  max-width: 28rem;
  font-size: 0.95rem;
}

.card,
.signal-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.2rem;
  box-shadow: inset 0 0 40px rgba(155, 28, 46, 0.06);
}

.signal-card {
  margin-bottom: 1.1rem;
  min-height: 6rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

#prophecy-text {
  margin: 0;
  color: var(--soft);
  font-family: var(--mono);
  font-size: 1rem;
  letter-spacing: 0.04em;
  line-height: 1.7;
}

#prophecy-text.signal-idle {
  color: var(--muted);
  letter-spacing: 0.35em;
}

#prophecy-meta {
  margin: 1rem 0 0;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.signal-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

#receive-btn,
.ghost-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: transparent;
  color: var(--text);
  font-family: var(--font);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.ghost-btn {
  color: var(--muted);
}

#receive-btn:hover,
.ghost-btn:hover {
  border-color: var(--accent);
  background: rgba(155, 28, 46, 0.12);
  color: var(--text);
}

.text-btn {
  background: none;
  border: none;
  padding: 0.4rem 0.2rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
}

.text-btn:hover {
  color: var(--danger);
}

.section-head {
  margin-bottom: 1.35rem;
}

.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.75rem;
}

.hub-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  min-height: 9.5rem;
  padding: 1.15rem 1.1rem 1.05rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  box-shadow: inset 0 0 28px rgba(155, 28, 46, 0.04);
  transition: background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}

.hub-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.85rem;
  bottom: 0.85rem;
  width: 1px;
  background: transparent;
  transition: background 0.15s ease;
}

.hub-card:hover {
  background: var(--surface-hover);
  border-color: var(--accent);
  color: inherit;
  box-shadow: inset 0 0 36px rgba(155, 28, 46, 0.1);
}

.hub-card:hover::before {
  background: var(--accent);
}

.hub-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.hub-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text);
}

.hub-badge {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.18rem 0.5rem;
}

.hub-blurb {
  margin: 0;
  color: var(--soft);
  font-size: 0.88rem;
  line-height: 1.45;
  flex: 1;
}

.hub-url {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.join-mail {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
}

.join-mail a {
  color: var(--soft);
  border-bottom: 1px solid var(--border);
}

.join-mail a:hover {
  color: var(--danger);
  border-color: var(--danger);
}

.archive,
.archive-page {
  margin-bottom: 2rem;
}

.archive-shell {
  padding: 0;
  overflow: hidden;
}

.archive-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 22rem;
  overflow-y: auto;
}

.archive-item {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
}

.archive-item:last-child {
  border-bottom: none;
}

.archive-text {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.92rem;
  color: var(--soft);
  letter-spacing: 0.03em;
  line-height: 1.65;
}

.archive-meta {
  margin: 0.55rem 0 0;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.archive-empty {
  margin: 0;
  padding: 1.4rem 1.25rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.archive-actions {
  margin-top: 1.1rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.4rem;
  text-align: center;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.site-footer p {
  margin: 0;
}

@keyframes glitch-flicker {
  0% { opacity: 1; filter: none; transform: none; }
  20% { opacity: 0.35; filter: hue-rotate(20deg) contrast(1.3); transform: translateX(1px); }
  40% { opacity: 1; filter: none; transform: translateX(-1px); }
  55% { opacity: 0.55; letter-spacing: 0.4em; }
  100% { opacity: 1; filter: none; transform: none; }
}

.glitch {
  animation: glitch-flicker 0.28s steps(2, end) 1;
}

#prophecy-box.glitch {
  animation: glitch-flicker 0.32s steps(2, end) 1;
  box-shadow: inset 0 0 40px rgba(155, 28, 46, 0.22);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.signal-toggle {
  background: none;
  border: none;
  padding: 0.2rem 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  cursor: pointer;
  white-space:nowrap;
}

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

.signal-toggle.is-live,
.signal-toggle[aria-pressed="true"] {
  color: var(--accent);
}

.hub-card.is-sealed {
  opacity: 0.72;
  cursor: default;
}

.hub-card.is-sealed:hover {
  border-color: var(--border);
  background: var(--surface);
  transform: none;
}

.tool-page .lede {
  margin-bottom: 1.25rem;
}

.tool-panel {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.tool-label {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.tool-input {
  width: 100%;
  box-sizing: border-box;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--soft);
  font-family: var(--mono);
  font-size: 0.9rem;
  line-height: 1.55;
  padding: 0.85rem 0.95rem;
  resize: vertical;
}

.tool-input:focus {
  outline: none;
  border-color: var(--accent);
}

.tool-input-sm {
  max-width: 6rem;
  resize: none;
}

.tool-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.tool-checks {
  display: grid;
  gap: 0.45rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--soft);
}

.tool-checks label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.tool-checks input {
  accent-color: var(--accent);
}

.sigil-stage {
  display: flex;
  justify-content: center;
  padding: 1rem 0 0.25rem;
  border-top: 1px solid var(--border);
  margin-top: 0.35rem;
}

.sigil-stage svg {
  width: min(100%, 320px);
  height: auto;
  border: 1px solid var(--border);
}

.tool-nav {
  margin-top: 0.5rem;
}

.tool-status {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.tool-meta {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.tool-inline {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--soft);
  cursor: pointer;
}

.signal-layout {
  display: flex;
  align-items: stretch;
  gap: 1rem;
}

.signal-body {
  flex: 1;
  min-width: 0;
}

.signal-mark {
  flex: 0 0 auto;
  width: 72px;
  opacity: 0.9;
  border: 1px solid var(--border);
  align-self: center;
}

.signal-mark svg {
  display: block;
  width: 72px;
  height: 72px;
}

.mark-forge {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 0 0 1.25rem;
  max-width: 28rem;
}

.mark-preview {
  border-top: 1px solid var(--border);
  margin-top: 0.25rem;
  padding-top: 0.85rem;
}

.mark-preview svg {
  width: min(100%, 200px);
}

.hub-stub {
  min-height: 50vh;
  margin-bottom: 0;
}

.stub-card {
  max-width: 28rem;
}

.stub-line {
  margin: 0;
  font-family: var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--soft);
}

.stub-meta {
  margin: 0.85rem 0 0;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.mark-sealed {
  margin: 0 0 1.25rem;
  max-width: 28rem;
}

.mark-sealed-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.mark-sealed-seal {
  flex: 0 0 auto;
  width: 56px;
  border: 1px solid var(--border);
}

.mark-sealed-seal svg {
  display: block;
  width: 56px;
  height: 56px;
}

.mark-sealed-copy .eyebrow {
  margin-bottom: 0.2rem;
}

.mark-sealed-phrase {
  margin: 0 0 0.35rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--soft);
  word-break: break-word;
}

.hub-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-top: auto;
  padding-top: 0.15rem;
}

.hub-cta {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.hub-card.is-live .hub-cta {
  color: var(--accent);
}

.hub-card.is-stub {
  opacity: 0.9;
}

.hub-card.is-stub:hover {
  opacity: 1;
}

.hub-badge--live {
  color: var(--soft);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  background: rgba(155, 28, 46, 0.12);
}

.hub-badge--classified {
  color: var(--soft);
  border-color: color-mix(in srgb, var(--soft) 25%, var(--border));
}

.hub-badge--deferred {
  color: var(--muted);
}

.stub-actions {
  margin-top: 1.75rem;
}

.hub-stub .stub-card {
  margin-bottom: 0;
}

.site-nav a[aria-current="page"] {
  color: var(--text);
}

/* --- floor (WebLLM AI panel) --- */
.floor-panel {
  max-width: 38rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  margin-bottom: 0;
  padding: 1.25rem 1.2rem 1.15rem;
  box-shadow: inset 0 0 48px rgba(155, 28, 46, 0.07);
}

.floor-device {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.floor-note {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--soft);
}

.floor-error {
  color: var(--danger);
}

.floor-log {
  min-height: 9.5rem;
  max-height: 22rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 0.95rem 0.9rem;
  background: color-mix(in srgb, var(--bg) 72%, var(--surface));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: inset 0 0 28px rgba(0, 0, 0, 0.35);
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.floor-log::-webkit-scrollbar {
  width: 6px;
}

.floor-log::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 999px;
}

.floor-idle {
  margin: auto 0;
  padding: 1.5rem 0;
  text-align: center;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--muted);
}

.floor-msg {
  position: relative;
  margin: 0;
  padding: 0.35rem 0 0.35rem 0.75rem;
  font-family: var(--mono);
  font-size: 0.86rem;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--soft);
  white-space: pre-wrap;
  word-break: break-word;
  border-left: 1px solid transparent;
}

.floor-msg-user {
  color: var(--muted);
  border-left-color: var(--border);
}

.floor-msg-user::before {
  content: "You";
  display: block;
  margin-bottom: 0.2rem;
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  opacity: 0.85;
}

.floor-msg-c {
  color: var(--text);
  border-left-color: var(--accent);
}

.floor-msg-c::before {
  content: "C";
  display: block;
  margin-bottom: 0.2rem;
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.floor-msg-error {
  color: var(--danger);
  border-left-color: var(--danger);
}

.floor-msg-stream::after {
  content: "▋";
  margin-left: 0.15rem;
  color: var(--accent);
  animation: floor-blink 1s steps(1) infinite;
}

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

.floor-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.floor-input {
  min-height: 4.75rem;
  resize: vertical;
  background: var(--bg);
}

.floor-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: inset 0 0 0 1px rgba(155, 28, 46, 0.25);
}

.floor-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
}

.floor-send {
  color: var(--text);
  border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
  background: rgba(155, 28, 46, 0.1);
  letter-spacing: 0.18em;
}

.floor-send:hover {
  border-color: var(--accent);
  background: rgba(155, 28, 46, 0.18);
  color: var(--text);
}

.floor-status {
  margin: 0;
  flex: 1;
  min-width: 8rem;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.floor-disabled .floor-input,
.floor-disabled .floor-send {
  opacity: 0.55;
  cursor: not-allowed;
}

.floor-no-webgpu .floor-log {
  opacity: 0.7;
}

.floor-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --- floor invite / clearance gate --- */
.floor-invite-row {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 0.65rem;
  padding: 0.85rem 0.9rem;
  background: color-mix(in srgb, var(--bg) 65%, var(--surface));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: inset 0 0 24px rgba(155, 28, 46, 0.06);
}

.floor-invite-row[hidden] {
  display: none !important;
}

.floor-invite {
  flex: 1 1 12rem;
  min-width: 0;
  min-height: 2.6rem;
  margin: 0;
  letter-spacing: 0.12em;
}

.floor-invite::placeholder {
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.floor-seal {
  flex: 0 0 auto;
  min-height: 2.6rem;
  color: var(--text);
  border-color: color-mix(in srgb, var(--accent) 50%, var(--border));
  background: rgba(155, 28, 46, 0.1);
  letter-spacing: 0.18em;
}

.floor-seal:hover {
  border-color: var(--accent);
  background: rgba(155, 28, 46, 0.18);
  color: var(--text);
}

/* While invite is open, quiet the chat until clearance */
.floor-panel:has(.floor-invite-row:not([hidden])) .floor-log,
.floor-panel:has(.floor-invite-row:not([hidden])) .floor-form {
  opacity: 0.42;
  pointer-events: none;
  filter: grayscale(0.15);
}

.floor-panel:has(.floor-invite-row:not([hidden])) .floor-device {
  color: var(--accent);
}

.floor-status:empty {
  display: none;
}

@media (max-width: 720px) {
  .floor-panel {
    max-width: 100%;
    padding: 1.1rem 1rem 1rem;
  }

  .floor-log {
    max-height: 15rem;
    min-height: 8rem;
  }

  .floor-input {
    font-size: 16px;
    min-height: 5rem;
  }

  .floor-send {
    min-height: 2.6rem;
  }

  .floor-invite-row {
    padding: 0.75rem;
  }

  .floor-invite {
    font-size: 16px;
    flex: 1 1 100%;
  }

  .floor-seal {
    width: 100%;
    min-height: 2.6rem;
  }
}

@media (max-width: 560px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.85rem;
    padding: 0.95rem 1.1rem;
  }

  .site-nav {
    flex-wrap: wrap;
    gap: 0.35rem 0.85rem;
    width: 100%;
  }

  .site-nav a {
    display: inline-flex;
    align-items: center;
    min-height: 2.6rem;
    padding: 0.2rem 0.1rem;
  }

  .header-right {
    width: 100%;
    flex-wrap: wrap;
    gap: 0.75rem 1rem;
  }

  main {
    width: min(100% - 1.4rem, var(--max));
    padding: 1.75rem 0 3.5rem;
  }

  h1,
  h2 {
    font-size: 1.15rem;
  }

  .signal-layout {
    flex-direction: column;
  }

  .signal-mark {
    align-self: flex-start;
  }

  .hub-grid {
    grid-template-columns: 1fr;
    gap: 0.65rem;
  }

  .hub-card {
    min-height: 0;
  }

  #receive-btn,
  .ghost-btn {
    min-height: 2.6rem;
  }

  .tool-input {
    font-size: 16px;
  }

  .stub-actions {
    margin-top: 1.5rem;
  }
}