/* ---------- design tokens ---------- */
:root {
  --ink:        #0d1729;
  --ink-soft:   #2a3855;
  --ink-mist:   rgba(13, 23, 41, 0.55);
  --paper:      #f3ead8;
  --paper-2:    #ece2cb;
  --paper-3:    #e0d4b8;
  --rust:       #c75d44;
  --rust-dark:  #a04330;
  --gold:       #c4a05e;
  --line:       rgba(13, 23, 41, 0.18);
  --line-soft:  rgba(13, 23, 41, 0.08);
  --shadow-1:   0 1px 0 var(--line), 0 18px 36px -28px rgba(13,23,41,0.35);
  --shadow-2:   0 1px 0 var(--line), 0 30px 80px -40px rgba(13,23,41,0.55);

  --font-display: "Fraunces", "Times New Roman", serif;
  --font-body:    "Public Sans", system-ui, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, monospace;

  --radius:     4px;
  --radius-lg:  10px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  letter-spacing: 0.005em;
  overflow-x: hidden;
}

/* paper grain */
.grain {
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.35;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.05  0 0 0 0 0.09  0 0 0 0 0.16  0 0 0 0.18 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

button { font-family: inherit; }
input, textarea { font-family: inherit; font-size: 16px; }

/* ---------- typography ---------- */
.brand {
  font-family: var(--font-display);
  font-weight: 500;
  font-variation-settings: "opsz" 144, "SOFT" 80, "WONK" 1;
  font-size: clamp(48px, 9vw, 96px);
  line-height: 0.95;
  letter-spacing: -0.025em;
  margin: 0;
  display: flex; flex-direction: column; gap: 6px;
}
.brand-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  font-weight: 500;
  color: var(--ink-mist);
  text-transform: uppercase;
}
.brand-name { display: block; }
.brand-name--sm {
  font-family: var(--font-display);
  font-variation-settings: "opsz" 60, "SOFT" 70, "WONK" 1;
  font-size: 28px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.brand-sub {
  font-family: var(--font-body);
  font-style: italic;
  font-weight: 400;
  font-size: 14px;
  letter-spacing: 0.01em;
  color: var(--ink-mist);
  margin-top: 14px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-mist);
}
.eyebrow--inline { display: inline-block; }

.title {
  font-family: var(--font-display);
  font-variation-settings: "opsz" 96, "SOFT" 50, "WONK" 1;
  font-weight: 480;
  font-size: clamp(32px, 5vw, 54px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 6px 0 0;
}

/* ---------- buttons ---------- */
.btn {
  appearance: none;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  padding: 12px 18px;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.02em;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: transform 0.12s ease, background 0.18s ease, color 0.18s ease;
}
.btn:active { transform: translateY(1px); }
.btn--primary:hover { background: var(--rust); border-color: var(--rust); }
.btn--ghost {
  background: transparent;
  color: var(--ink);
}
.btn--ghost:hover { background: var(--ink); color: var(--paper); }
.btn--danger:hover {
  background: var(--rust-dark); border-color: var(--rust-dark); color: var(--paper);
}
.btn--danger {
  background: transparent; color: var(--rust-dark);
  border: 1px solid var(--rust-dark);
}
.btn--small { padding: 8px 12px; font-size: 12px; }
.btn-arrow {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 18px;
}
.btn-mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
}
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.link {
  appearance: none;
  background: none;
  border: 0;
  padding: 0;
  color: var(--ink);
  font-size: 14px;
  cursor: pointer;
  border-bottom: 1px dotted var(--ink);
  padding-bottom: 2px;
}
.link:hover { color: var(--rust); border-color: var(--rust); }
.link--mono {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  display: inline-flex; gap: 8px; align-items: baseline;
}
.copy-hint { font-size: 10px; color: var(--ink-mist); letter-spacing: 0.18em; text-transform: uppercase; }

.iconbtn {
  appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  width: 40px; height: 40px;
  border-radius: 100px;
  font-size: 18px;
  cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}
.iconbtn:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }

/* ---------- forms ---------- */
.field {
  display: flex; flex-direction: column; gap: 6px;
}
.field-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-mist);
}
.field input, .field textarea {
  appearance: none;
  border: 0;
  border-bottom: 1.5px solid var(--ink);
  background: transparent;
  padding: 8px 0 10px;
  color: var(--ink);
  outline: none;
  font-size: 18px;
  font-family: var(--font-body);
  transition: border-color 0.15s ease;
  border-radius: 0;
}
.field input:focus, .field textarea:focus {
  border-color: var(--rust);
}
.field textarea {
  min-height: 120px;
  resize: vertical;
  border: 1px solid var(--ink);
  padding: 12px;
  border-radius: var(--radius);
  background: var(--paper);
}
.hint {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.18em;
  color: var(--ink-mist);
  margin-left: 6px;
  text-transform: none;
}
.form-error {
  margin: 0;
  font-size: 13px;
  color: var(--rust-dark);
  font-style: italic;
}

/* ---------- views, layout ---------- */
.view { position: relative; z-index: 2; min-height: 100dvh; }

/* AUTH */
.view--auth { display: flex; align-items: stretch; }
.auth-layout {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  width: 100%;
  min-height: 100dvh;
}
.auth-side {
  padding: clamp(28px, 6vw, 72px);
  background:
    radial-gradient(circle at 18% 22%, rgba(199,93,68,0.10), transparent 40%),
    radial-gradient(circle at 88% 78%, rgba(196,160,94,0.14), transparent 45%),
    var(--paper);
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column; justify-content: space-between;
  position: relative;
  overflow: hidden;
}
.auth-side::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 25% 35%, var(--ink) 1.5px, transparent 2px),
    radial-gradient(circle at 70% 20%, var(--ink) 1px, transparent 1.5px),
    radial-gradient(circle at 80% 65%, var(--ink) 2px, transparent 2.5px),
    radial-gradient(circle at 35% 80%, var(--ink) 1px, transparent 1.5px),
    radial-gradient(circle at 55% 55%, var(--rust) 2px, transparent 2.5px),
    radial-gradient(circle at 15% 70%, var(--ink) 1.5px, transparent 2px);
  background-size: 100% 100%;
  opacity: 0.5;
  pointer-events: none;
}
.auth-coord {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--ink-mist);
  text-transform: uppercase;
  position: relative; z-index: 1;
}
.auth-blurb {
  font-family: var(--font-display);
  font-variation-settings: "opsz" 48, "SOFT" 40;
  font-style: italic;
  font-weight: 400;
  font-size: clamp(20px, 2.2vw, 26px);
  line-height: 1.35;
  max-width: 28ch;
  color: var(--ink);
  position: relative; z-index: 1;
}
.auth-feats {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 6px;
  font-size: 14px;
  color: var(--ink-soft);
  position: relative; z-index: 1;
}
.auth-feats .dot {
  display: inline-block; width: 6px; height: 6px;
  background: var(--rust);
  border-radius: 100px;
  margin-right: 10px;
  vertical-align: middle;
}
.auth-card {
  padding: clamp(28px, 5vw, 72px);
  background: var(--paper);
  display: flex; flex-direction: column; gap: 28px;
  justify-content: center;
}
.tabs {
  display: flex; gap: 22px;
  border-bottom: 1px solid var(--line);
}
.tab {
  appearance: none;
  background: none;
  border: 0;
  padding: 12px 0;
  font-family: var(--font-display);
  font-size: 20px;
  font-variation-settings: "opsz" 48, "SOFT" 50;
  letter-spacing: -0.01em;
  cursor: pointer;
  color: var(--ink-mist);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.tab[aria-selected="true"] {
  color: var(--ink);
  border-color: var(--ink);
}
.auth-form {
  display: flex; flex-direction: column; gap: 22px;
  max-width: 380px;
}

/* HOME */
.top {
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px clamp(20px, 4vw, 48px);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0;
  background: rgba(243, 234, 216, 0.92);
  backdrop-filter: blur(6px);
  z-index: 10;
}
.top-brand {
  display: flex; align-items: baseline; gap: 14px;
}
.top-meta {
  display: flex; align-items: center; gap: 18px;
  font-size: 14px;
}
.me {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink-mist);
  text-transform: uppercase;
}

.home {
  padding: clamp(28px, 5vw, 64px) clamp(20px, 4vw, 48px);
  max-width: 1100px;
  margin: 0 auto;
}
.home-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.home-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.groups {
  list-style: none; padding: 0; margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.group-card {
  display: flex; flex-direction: column;
  border: 1px solid var(--line);
  background: var(--paper-2);
  padding: 22px;
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  animation: rise 0.5s ease both;
}
.group-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-1);
  border-color: var(--ink);
}
.group-card .ix {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  color: var(--ink-mist);
}
.group-card .name {
  font-family: var(--font-display);
  font-variation-settings: "opsz" 72, "SOFT" 60;
  font-size: 28px;
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 8px 0 18px;
}
.group-card .role {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--rust-dark);
}
.group-card .code {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
  margin-top: auto;
}
.group-card .open-arrow {
  position: absolute; bottom: 18px; right: 20px;
  font-family: var(--font-display);
  font-size: 26px;
  transition: transform 0.2s ease, color 0.2s ease;
}
.group-card:hover .open-arrow { transform: translateX(4px); color: var(--rust); }

@keyframes rise {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.group-card:nth-child(2) { animation-delay: 0.05s; }
.group-card:nth-child(3) { animation-delay: 0.10s; }
.group-card:nth-child(4) { animation-delay: 0.15s; }
.group-card:nth-child(5) { animation-delay: 0.20s; }
.group-card:nth-child(6) { animation-delay: 0.25s; }

.empty {
  text-align: center;
  padding: 80px 20px;
  color: var(--ink-mist);
}
.empty-mark {
  font-size: 48px;
  font-family: var(--font-display);
  color: var(--rust);
  margin-bottom: 12px;
}

.home-banner {
  padding: 16px clamp(20px, 4vw, 48px);
  background: var(--paper-3);
  border-bottom: 1px solid var(--line);
}
.banner-eyebrow {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--rust-dark);
  margin-bottom: 8px;
}
.invites { list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 8px; }
.invite-row {
  display: flex; align-items: center; gap: 14px;
  font-size: 14px; flex-wrap: wrap;
}
.invite-row .grp {
  font-family: var(--font-display);
  font-variation-settings: "opsz" 36;
  font-size: 18px;
  font-weight: 500;
}
.invite-row .from {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ink-mist);
}
.invite-row .spacer { flex: 1; }

/* GROUP / GRAPH */
.top--group { gap: 14px; }
.top-group-meta { flex: 1; min-width: 0; }
.group-title {
  font-family: var(--font-display);
  font-variation-settings: "opsz" 60, "SOFT" 55;
  font-weight: 500;
  font-size: clamp(20px, 3vw, 28px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin: 2px 0 0;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.top-right { display: flex; align-items: center; gap: 12px; }

.graph-shell {
  position: relative;
  height: calc(100dvh - 71px);
  overflow: hidden;
}
.cy {
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(199,93,68,0.05), transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(196,160,94,0.05), transparent 50%),
    var(--paper);
}

/* dotted grid as graph background */
.cy::before {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(circle, rgba(13,23,41,0.10) 1px, transparent 1.5px);
  background-size: 28px 28px;
  pointer-events: none;
}

.link-banner {
  position: absolute;
  top: 16px; left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: var(--paper);
  padding: 10px 16px;
  border-radius: 100px;
  display: flex; align-items: center; gap: 12px;
  font-size: 13px;
  box-shadow: var(--shadow-1);
  z-index: 5;
  animation: drop 0.25s ease both;
}
.link-banner-text {
  font-family: var(--font-display);
  font-variation-settings: "opsz" 36, "SOFT" 50;
  font-style: italic;
  font-weight: 400;
}
.link-banner-cancel {
  appearance: none;
  background: none;
  border: 0;
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border-left: 1px solid rgba(243, 234, 216, 0.35);
  padding-left: 12px;
  cursor: pointer;
  opacity: 0.85;
}
.link-banner-cancel:hover { opacity: 1; color: var(--gold); }
@keyframes drop {
  from { opacity: 0; transform: translate(-50%, -12px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

/* focus panel — bottom sheet on mobile, side card on desktop */
.focus-panel {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  background: var(--paper);
  border-top: 1px solid var(--ink);
  padding: 14px 18px calc(20px + var(--safe-bottom));
  box-shadow: 0 -16px 36px -28px rgba(13,23,41,0.5);
  max-height: 60dvh;
  overflow-y: auto;
  transition: transform 0.3s ease;
  z-index: 4;
}
.focus-handle {
  width: 40px; height: 4px;
  border-radius: 100px;
  background: var(--ink-mist);
  margin: 0 auto 12px;
  opacity: 0.4;
}
.focus-meta {
  display: flex; gap: 14px; align-items: baseline;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mist);
}
.focus-author { font-style: normal; }
.focus-headline {
  font-family: var(--font-display);
  font-variation-settings: "opsz" 96, "SOFT" 50, "WONK" 1;
  font-weight: 500;
  font-size: clamp(24px, 3.6vw, 36px);
  line-height: 1.08;
  letter-spacing: -0.018em;
  margin: 6px 0 12px;
}
.focus-body {
  white-space: pre-wrap;
  font-size: 15px;
  color: var(--ink-soft);
  max-width: 64ch;
}
.focus-actions {
  display: flex; gap: 8px; margin-top: 18px;
  flex-wrap: wrap;
}

/* FAB — wax seal */
.fab {
  appearance: none;
  position: absolute;
  right: 18px;
  bottom: calc(60dvh + 18px); /* sit above the sheet on small screens... overridden on desktop */
  width: 56px; height: 56px;
  border-radius: 100px;
  border: 1.5px solid var(--paper);
  background: var(--rust);
  color: var(--paper);
  font-family: var(--font-display);
  font-size: 28px;
  cursor: pointer;
  box-shadow: 0 12px 26px -8px rgba(160, 67, 48, 0.6),
              0 0 0 4px rgba(199, 93, 68, 0.15);
  z-index: 6;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.fab:hover { transform: scale(1.06); }
.fab:active { transform: scale(0.98); }
.fab-plus { display: block; margin-top: -3px; }

/* desktop layout: side panel */
@media (min-width: 860px) {
  .focus-panel {
    top: 16px; right: 16px; bottom: 16px;
    left: auto;
    width: 380px;
    border: 1px solid var(--ink);
    border-radius: var(--radius-lg);
    max-height: none;
  }
  .focus-handle { display: none; }
  .fab { bottom: 24px; right: 416px; }
}
@media (max-width: 859px) {
  .focus-panel { border-radius: 18px 18px 0 0; }
}

/* MODAL */
.modal {
  position: fixed; inset: 0;
  z-index: 100;
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
}
.modal-backdrop {
  position: absolute; inset: 0;
  background: rgba(13, 23, 41, 0.45);
  backdrop-filter: blur(4px);
  animation: fade 0.18s ease both;
}
.modal-card {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: var(--radius-lg);
  padding: 32px 28px 24px;
  width: min(460px, 100%);
  max-height: 90dvh;
  overflow-y: auto;
  box-shadow: var(--shadow-2);
  animation: pop 0.22s cubic-bezier(.2,.85,.3,1.15) both;
}
.modal-x {
  position: absolute; top: 12px; right: 12px;
  appearance: none; background: none; border: 0;
  width: 32px; height: 32px;
  border-radius: 100px;
  font-size: 14px;
  color: var(--ink);
  cursor: pointer;
}
.modal-x:hover { background: var(--ink); color: var(--paper); }
.modal-eyebrow {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-mist);
}
.modal-title {
  font-family: var(--font-display);
  font-variation-settings: "opsz" 72, "SOFT" 60, "WONK" 1;
  font-weight: 500;
  font-size: 28px;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 6px 0 18px;
}
.modal-body { display: flex; flex-direction: column; gap: 16px; }
.modal-body .anchor-chip {
  font-size: 13px;
  background: var(--paper-3);
  border: 1px dashed var(--ink);
  padding: 8px 12px;
  border-radius: 100px;
  display: inline-flex; align-items: center; gap: 8px;
  font-style: italic;
  color: var(--ink-soft);
  align-self: flex-start;
}
.modal-body .anchor-chip .lab {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--rust-dark);
}
.modal-actions {
  display: flex; gap: 10px; justify-content: flex-end; margin-top: 10px;
}

@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes pop {
  from { opacity: 0; transform: translateY(12px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* TOAST */
.toast {
  position: fixed;
  left: 50%; bottom: calc(28px + var(--safe-bottom));
  transform: translateX(-50%);
  background: var(--ink);
  color: var(--paper);
  padding: 10px 18px;
  border-radius: 100px;
  font-size: 13px;
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  box-shadow: var(--shadow-1);
  z-index: 200;
  animation: drop 0.2s ease both;
}

/* AUTH responsive */
@media (max-width: 860px) {
  .auth-layout { grid-template-columns: 1fr; }
  .auth-side {
    padding: 28px 24px 36px;
    min-height: 280px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .auth-card { padding: 32px 24px; }
}

/* small screens */
@media (max-width: 520px) {
  .home-head { flex-direction: column; align-items: flex-start; }
  .home-actions { width: 100%; }
  .home-actions .btn { flex: 1; justify-content: center; }
  .top--group { padding-left: 14px; padding-right: 14px; }
  .top-right .iconbtn { display: none; }
  .top-right .link--mono { font-size: 12px; }
}

/* Cytoscape needs default cursor when not interactive */
.cy canvas { outline: none; }