:root {
  --ink: #0c0d10;
  --surface: #15171c;
  --surface-raised: #1d2026;
  --text: #ececee;
  --text-dim: #8d92a0;
  --accent: #c9a25c;
  --accent-ink: #171308;
  --success: #4fae82;
  --danger: #d9666f;
  --border: #262930;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: 'Inter', system-ui, sans-serif;
  height: 100vh;
  overflow: hidden;
}

.hidden { display: none !important; }

button { font-family: inherit; }
svg { flex-shrink: 0; }

.wordmark {
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 700;
  font-size: 1.6rem;
  margin: 0.2em 0;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 10px;
}
.wordmark-icon { color: var(--accent); flex-shrink: 0; }
.wordmark.small { font-size: 1.05rem; }
.wordmark.small .wordmark-icon { width: 16px; height: 16px; }

.eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 0;
}

.btn-icon { margin-right: 8px; vertical-align: -3px; }
.inline-icon { vertical-align: -2px; margin-right: 2px; }

/* ---------- Auth screen ---------- */

#auth-screen {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  max-width: 400px;
  width: 100%;
}

.tagline {
  color: var(--text-dim);
  line-height: 1.5;
  margin-bottom: 2rem;
  font-size: 0.92rem;
}

.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 1.2rem;
  background: var(--surface);
  border-radius: 8px;
  padding: 4px;
}
.tab {
  flex: 1;
  padding: 0.6rem;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 0.82rem;
  border-radius: 6px;
  cursor: pointer;
}
.tab.active { background: var(--surface-raised); color: var(--text); }

.auth-form { display: flex; flex-direction: column; gap: 10px; }
.auth-form input {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 0.9rem;
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
}
.auth-form input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.auth-form button,
#recovery-code-confirm {
  width: 100%;
  background: var(--accent);
  color: var(--accent-ink);
  border: none;
  border-radius: 8px;
  padding: 0.8rem;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  margin-top: 6px;
}
.auth-form button:hover,
#recovery-code-confirm:hover { filter: brightness(1.08); }

.form-error { color: var(--danger); font-size: 0.85rem; min-height: 1.2em; }

.fineprint {
  color: var(--text-dim);
  font-size: 0.78rem;
  line-height: 1.5;
  margin-top: 1.8rem;
  border-top: 1px solid var(--border);
  padding-top: 1.2rem;
}

.code-actions {
  display: flex;
  gap: 8px;
  margin-top: 0.8rem;
}
.secondary-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 0.65rem;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}
.secondary-btn:hover { border-color: var(--accent); }

/* ---------- Chat screen ---------- */

#chat-screen { display: flex; height: 100%; }

.sidebar {
  width: 260px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 16px;
}
.sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 1rem;
}
.me { font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; color: var(--text-dim); }

.push-btn {
  width: 100%;
  display: flex;
  align-items: center;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: 8px;
  padding: 0.55rem 0.7rem;
  font-size: 0.8rem;
  cursor: pointer;
  margin-bottom: 10px;
}
.push-btn:hover { border-color: var(--accent); color: var(--text); }
.push-btn:disabled { color: var(--success); cursor: default; border-color: var(--border); }

.link-code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.2rem;
  text-align: center;
  margin: 1rem 0;
  word-break: break-word;
  line-height: 1.6;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}
.modal-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  width: 320px;
}
.modal-card input {
  width: 100%;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.7rem 0.9rem;
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  margin: 1rem 0;
  text-align: center;
}
.modal-actions { display: flex; gap: 8px; }
.modal-actions button {
  flex: 1;
  border: none;
  border-radius: 8px;
  padding: 0.65rem;
  font-weight: 600;
  cursor: pointer;
}
.modal-actions button[type=submit] { background: var(--accent); color: var(--accent-ink); }
.modal-actions button.secondary { background: var(--surface-raised); color: var(--text-dim); }

.add-contact { display: flex; gap: 6px; margin-bottom: 1rem; }
.add-contact input {
  flex: 1;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.5rem 0.7rem;
  color: var(--text);
  font-family: inherit;
  font-size: 0.85rem;
}
.add-contact button {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: var(--accent-ink);
  border: none;
  border-radius: 6px;
  width: 36px;
  cursor: pointer;
}

.contact-list { list-style: none; margin: 0; padding: 0; overflow-y: auto; }
.contact-list li {
  padding: 0.65rem 0.7rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text-dim);
}
.contact-list li:hover { background: var(--surface-raised); color: var(--text); }

.conversation { flex: 1; display: flex; flex-direction: column; }

.empty-state {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  color: var(--text-dim);
}

#active-conversation { display: flex; flex-direction: column; height: 100%; }

.conv-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.conv-header #conv-username { font-weight: 600; }
.fingerprint-label {
  margin-left: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.fingerprint {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--text);
  letter-spacing: 0.04em;
}

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.bubble {
  max-width: 60%;
  padding: 0.6rem 0.9rem;
  border-radius: 12px;
  font-size: 0.92rem;
  line-height: 1.4;
}
.bubble.mine {
  align-self: flex-end;
  background: var(--accent);
  color: var(--accent-ink);
  border-bottom-right-radius: 4px;
}
.bubble.theirs {
  align-self: flex-start;
  background: var(--surface-raised);
  border-bottom-left-radius: 4px;
}

.send-form {
  display: flex;
  gap: 10px;
  padding: 16px 20px;
  border-top: 1px solid var(--border);
}
.send-form input {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.7rem 1.1rem;
  color: var(--text);
  font-family: inherit;
}
.send-form button {
  display: flex;
  align-items: center;
  background: var(--accent);
  color: var(--accent-ink);
  border: none;
  border-radius: 8px;
  padding: 0.7rem 1.2rem;
  font-weight: 600;
  cursor: pointer;
}

.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: 8px;
  cursor: pointer;
}
.icon-btn:hover { border-color: var(--accent); color: var(--text); }

.requests-list, .contact-list { list-style: none; margin: 0; padding: 0; }
.requests-list { margin-bottom: 12px; }
.request-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.5rem 0.6rem;
  border-radius: 6px;
  background: var(--surface-raised);
  margin-bottom: 6px;
  font-size: 0.85rem;
}
.request-item span { flex: 1; color: var(--text); }
.request-accept, .request-decline {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}
.request-accept { background: var(--success); color: var(--ink); }
.request-decline { background: var(--surface); color: var(--danger); border: 1px solid var(--border); }

.media-bubble { padding: 6px; }
.media-bubble audio { width: 220px; }

@media (max-width: 640px) {
  .sidebar { width: 100%; position: absolute; z-index: 2; height: 100%; }
  #active-conversation { width: 100%; }
}