:root {
  --bg: #1f2a24;
  --bg-grain: #253026;
  --surface: #283528;
  --paper: #f6f1e2;
  --paper-shadow: #d8cfb4;
  --ink: #23201a;
  --ink-soft: #574f3f;
  --accent: #e1a83b;
  --accent-ink: #4a3510;
  --sage: #85a98d;
  --muted: #a9b6ac;
  --danger: #c65b4e;
  --radius: 3px;
  --font-display: 'Special Elite', 'Courier New', monospace;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background-color: var(--bg);
  background-image:
    radial-gradient(circle at 20% 10%, rgba(255,255,255,0.03), transparent 40%),
    radial-gradient(circle at 80% 60%, rgba(255,255,255,0.025), transparent 45%);
  color: var(--muted);
  font-family: var(--font-body);
  line-height: 1.5;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }

button {
  font-family: var(--font-body);
  cursor: pointer;
}

/* ---------- Topbar ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--surface);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  box-shadow: 0 2px 12px rgba(0,0,0,0.25);
}

.topbar-inner {
  max-width: 920px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.brand {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--paper);
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.brand-pin {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #ffd98a, var(--accent) 60%, var(--accent-ink) 100%);
  box-shadow: 0 1px 2px rgba(0,0,0,0.4);
}

.search-form {
  flex: 1;
  max-width: 360px;
}

.search-form input {
  width: 100%;
  background: rgba(0,0,0,0.2);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 9px 12px;
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.search-form input::placeholder { color: var(--muted); opacity: 0.7; }
.search-form input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.auth-area {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  white-space: nowrap;
}

.auth-area .who {
  font-family: var(--font-mono);
  color: var(--sage);
}

/* ---------- Buttons ---------- */

.btn {
  border: 1px solid rgba(255,255,255,0.15);
  background: transparent;
  color: var(--paper);
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 500;
  transition: transform 0.12s ease, background 0.12s ease, border-color 0.12s ease;
}

.btn:hover { border-color: var(--accent); transform: translateY(-1px); }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
}

.btn-primary:hover { background: #edb94f; }

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

.btn-ghost { border-color: transparent; padding-left: 8px; padding-right: 8px; }
.btn-ghost:hover { border-color: rgba(255,255,255,0.15); }

.btn:focus-visible, input:focus-visible, textarea:focus-visible, a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---------- App shell ---------- */

.app {
  max-width: 920px;
  margin: 0 auto;
  padding: 32px 20px 80px;
}

.board-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 22px;
  flex-wrap: wrap;
  gap: 10px;
}

.board-header h1 {
  font-family: var(--font-display);
  color: var(--paper);
  font-size: 1.4rem;
  font-weight: 400;
  margin: 0;
}

.board-count {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
}

/* ---------- Corkboard grid of notes ---------- */

.board-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 22px;
}

.note {
  position: relative;
  background: var(--paper);
  color: var(--ink);
  padding: 20px 18px 16px;
  border-radius: 2px;
  box-shadow: 0 8px 16px rgba(0,0,0,0.28), 0 1px 0 var(--paper-shadow) inset;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.board-grid .note:nth-child(3n+1) { transform: rotate(-0.8deg); }
.board-grid .note:nth-child(3n+2) { transform: rotate(0.6deg); }
.board-grid .note:nth-child(3n)   { transform: rotate(-0.3deg); }

.note:hover {
  transform: translateY(-3px) rotate(0deg);
  box-shadow: 0 14px 22px rgba(0,0,0,0.35), 0 1px 0 var(--paper-shadow) inset;
}

.note-pin {
  position: absolute;
  top: -7px;
  left: 50%;
  transform: translateX(-50%);
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #ff8f7c, #c65b4e 65%, #7c2f26 100%);
  box-shadow: 0 2px 3px rgba(0,0,0,0.4);
}

.note-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 400;
  margin: 4px 0 8px;
  line-height: 1.35;
}

.note-excerpt {
  font-size: 0.88rem;
  color: var(--ink-soft);
  margin: 0 0 12px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.note-meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-soft);
  display: flex;
  align-items: center;
  gap: 6px;
  border-top: 1px dashed var(--paper-shadow);
  padding-top: 8px;
}

.note-dot { opacity: 0.6; }

/* ---------- Empty / loading states ---------- */

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.empty-state .big {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--paper);
  display: block;
  margin-bottom: 8px;
}

/* ---------- Auth panel ---------- */

.auth-panel {
  max-width: 380px;
  margin: 40px auto;
  background: var(--paper);
  color: var(--ink);
  padding: 28px 26px;
  border-radius: 2px;
  box-shadow: 0 10px 20px rgba(0,0,0,0.3);
}

.auth-panel h2 {
  font-family: var(--font-display);
  font-weight: 400;
  margin-top: 0;
  font-size: 1.3rem;
}

.auth-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 18px;
  border-bottom: 1px dashed var(--paper-shadow);
}

.auth-tabs button {
  flex: 1;
  background: none;
  border: none;
  padding: 8px 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-soft);
  border-bottom: 2px solid transparent;
}

.auth-tabs button.active {
  color: var(--ink);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

.field { margin-bottom: 14px; }

.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  margin-bottom: 5px;
}

.field input, .field textarea {
  width: 100%;
  padding: 10px 11px;
  border: 1px solid var(--paper-shadow);
  border-radius: 2px;
  background: #fffdf7;
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--ink);
}

.field textarea { resize: vertical; min-height: 140px; font-family: var(--font-body); }

.field-hint { font-size: 0.75rem; color: var(--ink-soft); margin-top: 4px; }

.form-error {
  background: #fbe6e2;
  color: #8a2f22;
  border: 1px solid #e6b3a6;
  padding: 9px 11px;
  border-radius: 2px;
  font-size: 0.83rem;
  margin-bottom: 14px;
}

.auth-panel .btn-primary { width: 100%; padding: 10px; font-size: 0.9rem; }

/* ---------- Thread detail ---------- */

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--sage);
  margin-bottom: 20px;
}

.back-link:hover { color: var(--accent); }

.thread-paper {
  background: var(--paper);
  color: var(--ink);
  border-radius: 2px;
  padding: 30px 32px;
  box-shadow: 0 10px 20px rgba(0,0,0,0.3);
  position: relative;
  margin-bottom: 26px;
}

.thread-paper .note-pin { top: -7px; }

.thread-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
}

.thread-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 400;
  margin: 6px 0 10px;
  line-height: 1.3;
}

.thread-meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
  margin-bottom: 18px;
}

.thread-body {
  font-size: 1rem;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.thread-actions { display: flex; gap: 8px; flex-shrink: 0; }
.thread-actions .btn { border-color: var(--paper-shadow); color: var(--ink-soft); }
.thread-actions .btn:hover { border-color: var(--ink-soft); color: var(--ink); }

.section-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 0 0 14px;
}

.reply {
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 12px;
}

.reply-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--sage);
  margin-bottom: 8px;
}

.reply-body { color: var(--paper); white-space: pre-wrap; word-wrap: break-word; font-size: 0.92rem; }

.reply-form {
  margin-top: 20px;
}

.reply-form textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 12px 14px;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 0.92rem;
  min-height: 90px;
  resize: vertical;
}

.reply-form .btn-primary { margin-top: 10px; }

.login-prompt {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--muted);
  padding: 16px 0;
}

.login-prompt a { color: var(--accent); text-decoration: underline; }

/* ---------- New / edit thread form ---------- */

.compose-panel {
  background: var(--paper);
  color: var(--ink);
  padding: 28px 30px;
  border-radius: 2px;
  box-shadow: 0 10px 20px rgba(0,0,0,0.3);
  max-width: 640px;
  margin: 0 auto;
}

.compose-panel h2 {
  font-family: var(--font-display);
  font-weight: 400;
  margin-top: 0;
}

.compose-actions {
  display: flex;
  gap: 10px;
  margin-top: 6px;
}

.compose-actions .btn-primary { flex: 1; padding: 11px; }

@media (max-width: 600px) {
  .topbar-inner { flex-wrap: wrap; }
  .search-form { order: 3; max-width: 100%; }
  .thread-paper, .compose-panel { padding: 22px 18px; }
}