/* ── Blip — Encrypted Messaging on Solana ── */
/* Dark theme matching HydrateArt brand */

:root {
  --bg: #1A1714;
  --bg-surface: #211E1A;
  --bg-elevated: #2A2520;
  --bg-hover: #332E28;
  --text: #E8E0D6;
  --text-dim: #A09888;
  --accent: #4ECDC4;       /* Blip teal — radar/signal vibe */
  --accent-glow: rgba(78, 205, 196, 0.15);
  --orange: #F5A623;
  --mine: #2A3A38;          /* Outgoing message bubble */
  --theirs: #2A2520;        /* Incoming message bubble */
  --border: #3A3430;
  --danger: #E74C3C;
  --radius: 8px;
  --font: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  overflow: hidden;
}

/* ── Layout ── */
.app-layout {
  display: flex;
  height: 100vh;
}

/* ── Sidebar ── */
.sidebar {
  width: 280px;
  min-width: 280px;
  min-height: 0;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-header {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border);
}

.logo-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.logo-group {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.logo-title {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.logo-icon {
  flex-shrink: 0;
}

.logo {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
  line-height: 1;
}

.logo-tag {
  font-size: 0.55rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 0.2rem;
  line-height: 1;
}

.btn-network {
  font-size: 0.55rem;
  padding: 0.2rem 0.5rem;
  border-radius: 10px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
  line-height: 1.2;
}

.btn-network.mainnet {
  color: var(--accent);
  border-color: var(--accent);
}

.btn-network.devnet {
  color: var(--orange);
  border-color: var(--orange);
}

/* ── Auth Section ── */
.auth-section {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.auth-input {
  width: 100%;
  font-family: var(--font);
  font-size: 0.8rem;
  padding: 0.45rem 0.65rem;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  outline: none;
}
.auth-input:focus { border-color: var(--accent); }
.auth-input::placeholder { color: var(--text-dim); }

.pw-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.pw-wrap input { flex: 1; padding-right: 2.2rem; }
.pw-toggle {
  position: absolute;
  right: 0.5rem;
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 0.85rem;
  padding: 0.2rem;
  line-height: 1;
}
.pw-toggle:hover { color: var(--accent); }

.auth-buttons {
  display: flex;
  gap: 0.4rem;
}

.auth-buttons .btn {
  flex: 1;
  font-size: 0.75rem;
  padding: 0.4rem 0.5rem;
}

.btn-register {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
  font-weight: 600;
}
.btn-register:hover { background: var(--accent-glow); }

.user-info { margin-top: 0.25rem; }

.user-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
}

.username-display {
  color: var(--accent);
  font-weight: 600;
}

/* ── Buttons ── */
.btn {
  font-family: var(--font);
  font-size: 0.8rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elevated);
  color: var(--text);
  cursor: pointer;
  transition: all 0.15s;
}

.btn:hover { background: var(--bg-hover); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-connect {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
  font-weight: 600;
  width: 100%;
}
.btn-connect:hover { opacity: 0.9; background: var(--accent); }

.btn-new {
  margin: 0.75rem 1rem;
  text-align: center;
  border-style: dashed;
  color: var(--accent);
}
.btn-new:hover { background: var(--accent-glow); border-color: var(--accent); }

.btn-send {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
  font-weight: 600;
  padding: 0.5rem 1.25rem;
}
.btn-send:hover { opacity: 0.9; background: var(--accent); }

.btn-cancel {
  color: var(--text-dim);
}

/* ── Conversation List ── */
.conv-list {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem 0;
}

/* ── Swipe-to-delete wrapper ── */
.conv-swipe-wrapper {
  position: relative;
  overflow: hidden;
}

.conv-delete-btn {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 70px;
  background: var(--danger);
  color: #fff;
  border: none;
  font-family: var(--font);
  font-size: 0.7rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 0;
}
.conv-delete-btn:hover { opacity: 0.9; }

.conv-item {
  position: relative;
  z-index: 1;
  background: var(--bg-surface);
  padding: 0.75rem 1rem;
  cursor: pointer;
  border-left: 3px solid transparent;
  transition: all 0.15s;
}

.conv-item:hover { background: var(--bg-hover); }

.conv-item.active {
  background: var(--bg-elevated);
  border-left-color: var(--accent);
}

.conv-item.has-new .conv-label::after {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  margin-left: 0.5rem;
  vertical-align: middle;
}

.conv-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}

.conv-addr {
  font-size: 0.7rem;
  color: var(--text-dim);
  margin-top: 0.15rem;
}

.sidebar-backup {
  padding: 0.5rem 1rem;
  display: flex;
  gap: 0.35rem;
  border-top: 1px solid var(--border);
}

.btn-backup {
  flex: 1;
  font-size: 0.6rem;
  padding: 0.3rem 0.25rem;
  text-align: center;
  color: var(--text-dim);
  border-style: dashed;
}
.btn-backup:hover { color: var(--accent); border-color: var(--accent); }

.sidebar-footer {
  padding: 0.5rem 1rem;
  border-top: 1px solid var(--border);
  min-height: 2rem;
}

.status {
  font-size: 0.7rem;
  color: var(--accent);
}

/* ── Chat Area ── */
.chat-area {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg);
}

.empty-state {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 2rem;
}

.empty-state h2 {
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.empty-state p {
  color: var(--text-dim);
  font-size: 0.85rem;
  max-width: 360px;
  margin-bottom: 0.5rem;
}

.empty-state .hint {
  font-size: 0.75rem;
  color: var(--text-dim);
  opacity: 0.7;
}

.chat-panel {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chat-header {
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-surface);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
  z-index: 2;
}

.chat-header-left {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.chat-header h2 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
}

.chat-status {
  font-size: 0.6rem;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.chat-status.verified {
  background: rgba(78, 205, 196, 0.15);
  color: var(--accent);
}
.chat-status.blocked {
  background: rgba(231, 76, 60, 0.15);
  color: var(--danger);
}

.chat-status.pending {
  background: rgba(245, 166, 35, 0.15);
  color: var(--orange);
}

.chat-actions {
  display: flex;
  gap: 0.35rem;
}

.btn-sm {
  font-size: 0.65rem;
  padding: 0.25rem 0.5rem;
}

.btn-danger {
  color: var(--danger);
  border-color: var(--danger);
}
.btn-danger:hover {
  background: rgba(231, 76, 60, 0.15);
}

/* ── Verified dot in sidebar ── */
.verified-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  margin-right: 0.35rem;
  vertical-align: middle;
}

/* ── System messages ── */
.msg-system {
  align-self: center;
  max-width: 90%;
}

.msg-system-text {
  font-size: 0.7rem;
  color: var(--text-dim);
  text-align: center;
  padding: 0.25rem 0.75rem;
  background: var(--bg-elevated);
  border-radius: 12px;
  font-style: italic;
}

/* ── Modal explain text ── */
.modal-explain {
  font-size: 0.75rem;
  color: var(--text-dim);
  line-height: 1.4;
  margin-bottom: 0.5rem;
}

/* ── Modal warning box ── */
.modal-warning {
  font-size: 0.8rem;
  color: var(--orange);
  background: rgba(245, 166, 35, 0.1);
  border: 1px solid rgba(245, 166, 35, 0.3);
  border-radius: var(--radius);
  padding: 0.75rem;
  line-height: 1.5;
  margin-bottom: 0.75rem;
}

/* ── Messages ── */
.messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.msg {
  display: flex;
  max-width: 70%;
}

.msg-mine {
  align-self: flex-end;
}

.msg-theirs {
  align-self: flex-start;
}

.msg-bubble {
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius);
  font-size: 0.85rem;
  line-height: 1.45;
  word-break: break-word;
}

.msg-mine .msg-bubble {
  background: var(--mine);
  border-bottom-right-radius: 2px;
}

.msg-theirs .msg-bubble {
  background: var(--theirs);
  border: 1px solid var(--border);
  border-bottom-left-radius: 2px;
}

.msg-meta {
  font-size: 0.6rem;
  color: var(--text-dim);
  text-align: right;
  margin-top: 0.25rem;
}

/* ── Delivery status ── */
.delivery-status {
  margin-left: 0.35rem;
  font-weight: 600;
}
.delivery-sending { color: var(--text-dim); }
.delivery-confirmed { color: var(--accent); }
.delivery-failed { color: var(--danger); }

/* ── Input Bar ── */
.input-bar {
  display: flex;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border-top: 1px solid var(--border);
  background: var(--bg-surface);
  flex-shrink: 0;
  z-index: 2;
}

.chat-status-bar {
  padding: 0.25rem 1.25rem;
  font-size: 0.7rem;
  color: var(--accent);
  background: var(--bg-surface);
  text-align: center;
  flex-shrink: 0;
  animation: pulse-status 1.5s ease-in-out infinite;
}
@keyframes pulse-status {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.msg-input {
  flex: 1;
  font-family: var(--font);
  font-size: 0.85rem;
  padding: 0.5rem 0.75rem;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  outline: none;
}

.msg-input:focus {
  border-color: var(--accent);
}

.msg-input::placeholder {
  color: var(--text-dim);
}

.paste-textarea {
  width: 100%;
  font-family: var(--font);
  font-size: 0.8rem;
  padding: 0.5rem 0.75rem;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  outline: none;
  resize: vertical;
}
.paste-textarea:focus {
  border-color: var(--accent);
}

/* ── Modal ── */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 100;
}

.modal-content {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  width: 400px;
  max-width: 90vw;
}

.modal-content h3 {
  font-size: 1.1rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

.modal-content label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-bottom: 0.3rem;
  margin-top: 0.75rem;
}

.modal-content input {
  width: 100%;
  font-family: var(--font);
  font-size: 0.85rem;
  padding: 0.5rem 0.75rem;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  outline: none;
}

.modal-content input:focus {
  border-color: var(--accent);
}

.modal-content input::placeholder {
  color: var(--text-dim);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

/* ── Sidebar Tabs (Chats / Inbox) ── */
.sidebar-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
}

.sidebar-tab {
  flex: 1;
  font-family: var(--font);
  font-size: 0.75rem;
  padding: 0.5rem;
  text-align: center;
  background: transparent;
  color: var(--text-dim);
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
  position: relative;
}

.sidebar-tab:hover { color: var(--text); }
.sidebar-tab.tab-active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.inbox-badge {
  font-size: 0.6rem;
  background: var(--accent);
  color: var(--bg);
  padding: 0.1rem 0.35rem;
  border-radius: 8px;
  font-weight: 700;
  margin-left: 0.25rem;
}

.inbox-empty {
  padding: 1.5rem 1rem;
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* ── Connection Request Cards ── */
.request-empty {
  padding: 1.5rem 1rem;
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-dim);
}

.request-item {
  padding: 0.65rem 1rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.request-item:hover {
  background: var(--bg-hover);
}

.request-info {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

.request-sender {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
}

.request-time {
  font-size: 0.6rem;
  color: var(--text-dim);
}

.request-actions {
  display: flex;
  gap: 0.3rem;
  flex-shrink: 0;
}

.btn-accept {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
  font-weight: 600;
}
.btn-accept:hover { opacity: 0.9; background: var(--accent); }

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

.btn-block-sm {
  color: var(--text-dim);
  border-color: transparent;
  font-size: 0.6rem;
  padding: 0.2rem 0.35rem;
}
.btn-block-sm:hover { color: var(--danger); }

/* ── Modal Tabs ── */
.modal-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.modal-tab {
  flex: 1;
  font-family: var(--font);
  font-size: 0.75rem;
  padding: 0.5rem;
  text-align: center;
  background: transparent;
  color: var(--text-dim);
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
}

.modal-tab:hover { color: var(--text); }
.modal-tab.tab-active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ── Inbox thread count ── */
.inbox-count {
  font-size: 0.65rem;
  color: var(--text-dim);
  font-weight: 400;
}

/* ── Sent Tag (inbox) ── */
.sent-tag {
  font-size: 0.55rem;
  background: var(--text-dim);
  color: var(--bg);
  padding: 0.1rem 0.3rem;
  border-radius: 3px;
  font-weight: 700;
  vertical-align: middle;
  margin-right: 0.25rem;
}

/* ── Group Chat Tag ── */
.group-tag {
  font-size: 0.55rem;
  background: var(--accent);
  color: var(--bg);
  padding: 0.1rem 0.3rem;
  border-radius: 3px;
  font-weight: 700;
  vertical-align: middle;
  margin-right: 0.25rem;
}

.recovered-tag {
  font-size: 0.55rem;
  background: var(--text-dim);
  color: var(--bg);
  padding: 0.1rem 0.3rem;
  border-radius: 3px;
  font-weight: 700;
  vertical-align: middle;
  margin-right: 0.25rem;
}

/* ── Group Message Sender ── */
.msg-sender {
  font-size: 0.65rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.unverified-tag {
  font-size: 0.55rem;
  color: var(--danger);
  font-weight: 400;
  margin-left: 0.35rem;
  opacity: 0.8;
}

/* ── Tip / Support ── */
.btn-tip {
  color: var(--accent) !important;
  border-color: var(--accent) !important;
  border-style: solid !important;
}
.btn-tip:hover { background: var(--accent-glow); }

.tip-address-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem;
  margin-top: 0.5rem;
}

.tip-address-box label {
  margin-top: 0 !important;
}

.tip-address {
  font-size: 0.7rem;
  color: var(--accent);
  word-break: break-all;
  margin: 0.4rem 0;
  padding: 0.4rem;
  background: var(--bg-elevated);
  border-radius: 4px;
  user-select: all;
}

.tip-actions-row {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.tip-actions-row .btn {
  flex: 1;
  font-size: 0.65rem;
}

/* ── Pro Button ── */
.btn-pro {
  margin: 0.5rem 1rem 0;
  text-align: center;
  font-weight: 600;
  font-size: 0.75rem;
  background: linear-gradient(135deg, var(--accent), #38b2ac);
  color: var(--bg);
  border: none;
  padding: 0.4rem 0.75rem;
}
.btn-pro:hover { opacity: 0.9; background: linear-gradient(135deg, var(--accent), #38b2ac); }

/* ── Pro Badge ── */
.pro-badge {
  font-size: 0.5rem;
  background: var(--accent);
  color: var(--bg);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  vertical-align: middle;
  margin-left: 0.35rem;
}
.pro-badge.forever {
  background: linear-gradient(135deg, #F5A623, #D4941E);
  color: var(--bg);
}

/* ── Pro Modal (wider for tier grid) ── */
.modal-content-wide {
  width: 520px;
  max-width: 95vw;
}

/* ── Tier Grid ── */
.pro-tier-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  margin-bottom: 1rem;
}

.pro-tier-card {
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem;
  cursor: pointer;
  text-align: center;
  transition: all 0.15s;
}
.pro-tier-card:hover { border-color: var(--accent); background: var(--bg-elevated); }
.pro-tier-card.selected {
  border-color: var(--accent);
  background: var(--accent-glow);
  box-shadow: 0 0 12px rgba(78, 205, 196, 0.2);
}

.pro-tier-card.forever {
  border-color: rgba(245, 166, 35, 0.4);
}
.pro-tier-card.forever:hover { border-color: var(--orange); }
.pro-tier-card.forever.selected {
  border-color: var(--orange);
  background: rgba(245, 166, 35, 0.08);
  box-shadow: 0 0 12px rgba(245, 166, 35, 0.2);
}

.pro-tier-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.25rem;
}
.pro-tier-card.forever .pro-tier-label { color: var(--orange); }

.pro-tier-price {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.15rem;
}
.pro-tier-card.forever .pro-tier-price { color: var(--orange); }

.pro-tier-duration {
  font-size: 0.65rem;
  color: var(--text-dim);
}

.pro-tier-supply {
  font-size: 0.6rem;
  color: var(--orange);
  margin-top: 0.25rem;
  font-weight: 600;
}

/* ── Art Preview ── */
.pro-art-preview {
  width: 180px;
  height: 180px;
  margin: 0 auto 1rem;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
}
.pro-art-preview svg {
  width: 100%;
  height: 100%;
}

/* ── Wallet Row ── */
.pro-wallet-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.pro-wallet-status {
  font-size: 0.7rem;
  color: var(--accent);
  font-weight: 600;
}

/* ── Pro Status Text ── */
.pro-status {
  font-size: 0.75rem;
  color: var(--accent);
  min-height: 1.2em;
  margin-bottom: 0.5rem;
}

/* ── Pro Tag (inline badge for modal tabs) ── */
.pro-tag {
  font-size: 0.5rem;
  background: var(--accent);
  color: var(--bg);
  padding: 0.05rem 0.25rem;
  border-radius: 3px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  vertical-align: middle;
  margin-left: 0.2rem;
}

/* ── Wallet Resolve Status ── */
.resolve-status {
  font-size: 0.75rem;
  min-height: 1.5em;
  margin-top: 0.5rem;
  color: var(--text-dim);
}
.resolve-status.resolve-found { color: var(--accent); }
.resolve-status.resolve-none { color: var(--orange); }
.resolve-status.resolve-error { color: var(--danger); }
.resolve-status.resolve-loading { color: var(--text-dim); animation: pulse-status 1.5s ease-in-out infinite; }

/* ── Linked Wallets Sidebar Section ── */
.wallet-section {
  padding: 0.5rem 1rem;
  border-bottom: 1px solid var(--border);
}

.wallet-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.35rem;
}

.wallet-header-label {
  font-size: 0.65rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
}

.wallet-hint {
  font-size: 0.6rem;
  color: var(--text-dim);
  margin-bottom: 0.35rem;
  line-height: 1.3;
}

.btn-link-wallet {
  color: var(--accent);
  border-color: var(--accent);
  font-weight: 600;
}

.wallet-list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.wallet-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.3rem 0.4rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.65rem;
}

.wallet-addr {
  color: var(--accent);
  font-weight: 600;
  cursor: pointer;
  user-select: all;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 150px;
}
.wallet-addr:hover { opacity: 0.8; }

.wallet-unlink {
  font-size: 0.55rem;
  color: var(--text-dim);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font);
  padding: 0.15rem 0.3rem;
}
.wallet-unlink:hover { color: var(--danger); }

/* ── Utilities ── */
.hidden { display: none !important; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

/* ── Back button (mobile only) ── */
.btn-back {
  display: none;
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  margin-right: 0.5rem;
  color: var(--accent);
  border-color: var(--accent);
}

/* ── Responsive — Mobile ── */
@media (max-width: 640px) {
  .app-layout {
    position: relative;
  }

  .sidebar {
    width: 100%;
    min-width: unset;
    position: absolute;
    inset: 0;
    z-index: 10;
    transition: transform 0.2s ease;
    padding-top: env(safe-area-inset-top, 0);
    padding-bottom: env(safe-area-inset-bottom, 0);
  }

  .sidebar.mobile-hidden {
    transform: translateX(-100%);
  }

  .chat-area {
    width: 100%;
    position: absolute;
    inset: 0;
    z-index: 5;
    padding-top: env(safe-area-inset-top, 0);
    padding-bottom: env(safe-area-inset-bottom, 0);
  }

  .btn-back { display: inline-block; }

  /* Compact header on mobile */
  .sidebar-header { padding: 0.5rem 0.75rem; }
  .logo { font-size: 1.1rem; }
  .logo-tag { font-size: 0.5rem; }

  /* Compact auth section */
  .auth-section { padding: 0.5rem 0.75rem; }
  .login-form { gap: 0.35rem; }
  .auth-input { padding: 0.4rem 0.6rem; font-size: 16px; } /* 16px prevents iOS zoom */
  .auth-buttons .btn { padding: 0.35rem 0.4rem; font-size: 0.7rem; }

  /* Compact new chat button */
  .btn-new { margin: 0.5rem 0.75rem; padding: 0.4rem 0.75rem; font-size: 0.75rem; }

  /* Sidebar tabs */
  .sidebar-tab { padding: 0.4rem; font-size: 0.7rem; }

  /* Chat actions inline on mobile */
  .chat-header {
    flex-wrap: wrap;
    gap: 0.35rem;
    padding: 0.5rem 0.75rem;
  }

  .chat-actions {
    width: 100%;
    justify-content: flex-end;
  }

  /* Bigger touch targets for conv items */
  .conv-item { padding: 0.85rem 0.75rem; }
  .btn { padding: 0.5rem 0.75rem; }
  .msg-input { font-size: 16px; } /* Prevents iOS zoom on focus */

  /* Input bar safe area */
  .input-bar {
    padding: 0.5rem 0.75rem;
    padding-bottom: calc(0.5rem + env(safe-area-inset-bottom, 0));
  }

  /* Messages area */
  .messages { padding: 0.75rem; }
  .msg { max-width: 85%; }

  /* Full-width modals */
  .modal-content {
    width: 95vw;
    max-height: 85vh;
    overflow-y: auto;
    padding: 1.25rem;
  }
  .modal-content input { font-size: 16px; }

  /* Compact backup section */
  .sidebar-backup {
    padding: 0.4rem 0.75rem;
    padding-bottom: calc(0.4rem + env(safe-area-inset-bottom, 0));
  }
  .btn-backup { padding: 0.35rem 0.2rem; font-size: 0.55rem; }

  /* Compact footer */
  .sidebar-footer { padding: 0.35rem 0.75rem; min-height: 1.5rem; }

  /* Pro tier grid — single column on mobile */
  .pro-tier-grid { grid-template-columns: 1fr; }
  .pro-art-preview { width: 140px; height: 140px; }
  .btn-pro { margin: 0.4rem 0.75rem 0; font-size: 0.7rem; }

  /* Wallet section compact on mobile */
  .wallet-section { padding: 0.4rem 0.75rem; }
  .wallet-addr { max-width: 120px; }
}