/* ============================================
   RITHM - Right Panel Styles
   Global right sidebar: user info, nav, messaging
   ============================================ */

/* ── Right Panel Container ────────────── */

.right-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: var(--right-panel-width);
  height: 100vh;
  background: var(--bg-elevated);
  border-left: 1px solid var(--border-color);
  z-index: 100;
  display: flex;
  flex-direction: column;
  transition: width var(--transition-normal);
  overflow: hidden;
}

.right-panel.collapsed,
[data-rp-collapsed] .right-panel {
  width: var(--right-panel-collapsed-width);
}

/* ── Collapsed Strip ──────────────────── */

.rp-collapsed-strip {
  display: none;
  flex-direction: column;
  align-items: center;
  padding: 16px 0;
  gap: 16px;
  width: var(--right-panel-collapsed-width);
}

.right-panel.collapsed .rp-collapsed-strip,
[data-rp-collapsed] .right-panel .rp-collapsed-strip {
  display: flex;
}

.right-panel.collapsed .rp-content,
[data-rp-collapsed] .right-panel .rp-content {
  display: none;
}

.rp-expand-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  transition: var(--transition-fast);
}

.rp-expand-btn:hover {
  color: var(--text-primary);
  background: var(--surface-alpha);
}

.rp-mini-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
}

.rp-mini-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.rp-mini-avatar--default {
  background: var(--color-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
}

.rp-mini-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 14px;
  text-decoration: none;
  transition: var(--transition-fast);
}

.rp-mini-nav:hover {
  color: var(--text-primary);
  background: var(--surface-alpha);
}

.rp-mini-msg {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  position: relative;
  font-size: 14px;
  transition: var(--transition-fast);
}

.rp-mini-msg:hover {
  color: var(--text-primary);
  background: var(--surface-alpha);
}

.rp-mini-badge {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
}

/* ── Expanded Content ─────────────────── */

.rp-content {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

/* ── Panel Header ─────────────────────── */

.rp-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.rp-header-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.rp-header-actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.rp-collapse-btn,
.rp-close-mobile {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  transition: var(--transition-fast);
}

.rp-collapse-btn:hover,
.rp-close-mobile:hover {
  color: var(--text-primary);
  background: var(--surface-alpha);
}

.rp-close-mobile {
  display: none;
}

/* ── Scrollable Area ──────────────────── */

.rp-scroll {
  overflow-y: auto;
  flex: 0 1 auto;
}

/* ── Compact User Card (default) ──────── */

a.rp-user-card--compact {
  text-decoration: none;
  color: inherit;
  transition: background var(--transition-fast);
}

a.rp-user-card--compact:hover {
  background: var(--surface-alpha);
}

.rp-user-card--compact {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  display: block;
}

.rp-compact-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.rp-avatar--sm {
  width: 32px;
  height: 32px;
}

.rp-compact-info {
  flex: 1;
  min-width: 0;
}

.rp-compact-streak {
  font-size: 10px;
  color: var(--color-warning);
}

/* ── Detailed User Card (profile override) ── */

.rp-user-card {
  padding: 16px;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.rp-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  margin: 0 auto 8px;
  overflow: hidden;
}

.rp-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.rp-avatar--default {
  background: var(--color-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.rp-user-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.rp-settings-link {
  color: var(--text-muted);
  font-size: 0.7em;
  margin-left: 4px;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.rp-settings-link:hover {
  color: var(--color-primary);
}

.rp-user-meta {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.rp-user-badges {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.rp-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 600;
}

.rp-badge--streak {
  background: var(--surface-warning);
  color: var(--color-warning);
}

.rp-badge--trophy {
  background: var(--surface-primary);
  color: var(--color-primary);
}

.rp-user-actions {
  display: flex;
  justify-content: center;
  gap: 6px;
  flex-wrap: wrap;
}

/* ── Navigation ───────────────────────── */

.rp-nav {
  padding: 8px;
  border-bottom: 1px solid var(--border-color);
}

.rp-nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 13px;
  text-decoration: none;
  transition: var(--transition-fast);
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-family: inherit;
}

.rp-nav-item:hover {
  background: var(--surface-alpha);
  color: var(--text-primary);
}

.rp-nav-item.active {
  background: var(--surface-primary);
  color: var(--color-primary);
}

.rp-nav-icon {
  width: 20px;
  text-align: center;
  flex-shrink: 0;
  font-size: 14px;
}

.rp-nav-item--small {
  padding: 5px 10px;
  font-size: 12px;
}

.rp-nav-item--danger:hover {
  color: var(--color-danger);
}

/* ── User Actions / Auth Actions ──────── */

.rp-user-actions,
.rp-auth-actions {
  padding: 8px;
  border-bottom: 1px solid var(--border-color);
}

.rp-logout-form {
  display: contents;
}

.rp-signup-btn {
  text-align: center;
  padding: 8px;
  margin: 4px 8px;
  width: calc(100% - 16px);
  display: block;
}

/* ── Friend Requests (profile page) ───── */

.rp-requests {
  padding: 8px 12px;
  max-height: 160px;
  overflow-y: auto;
  border-bottom: 1px solid var(--border-color);
}

.rp-section-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  padding: 4px 0 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.rp-section-title i {
  font-size: 10px;
}

.rp-section-count {
  background: var(--surface-primary);
  color: var(--color-primary);
  padding: 1px 6px;
  border-radius: var(--radius-full);
  font-size: 10px;
}

.rp-requests .pending-request-card {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  border: none;
  border-bottom: 1px solid var(--border-color);
  background: none;
}

.rp-requests .pending-request-card:last-child {
  border-bottom: none;
}

.rp-request-user {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  flex: 1;
  min-width: 0;
}

.rp-request-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--color-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
}

.rp-request-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.rp-request-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.rp-request-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.rp-request-time {
  font-size: 10px;
  color: var(--text-muted);
}

.rp-request-actions {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

/* ── Messaging Section ────────────────── */

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

.rp-msg-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.rp-msg-back {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  transition: var(--transition-fast);
}

.rp-msg-back:hover {
  color: var(--text-primary);
}

.rp-msg-title {
  flex: 1;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.rp-msg-new {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  font-size: 13px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.rp-msg-new:hover {
  color: var(--text-primary);
}

/* ── Conversations List ───────────────── */

.rp-msg-conversations {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
}

.rp-msg-conv-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  cursor: pointer;
  border-bottom: 1px solid var(--border-color);
  transition: background 0.1s ease;
}

.rp-msg-conv-item:hover {
  background: var(--surface-alpha);
}

.rp-msg-conv-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  flex-shrink: 0;
  overflow: hidden;
  background: var(--surface-alpha);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 14px;
}

.rp-msg-conv-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.rp-msg-conv-info {
  flex: 1;
  min-width: 0;
}

.rp-msg-conv-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.rp-msg-conv-preview {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 1px;
}

.rp-msg-conv-meta {
  flex-shrink: 0;
  text-align: right;
}

.rp-msg-conv-time {
  font-size: 10px;
  color: var(--text-muted);
}

.rp-msg-unread {
  display: inline-block;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  border-radius: 8px;
  background: var(--color-primary);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  line-height: 16px;
  text-align: center;
  margin-top: 2px;
}

/* ── Friend Picker ────────────────────── */

.rp-msg-friend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  cursor: pointer;
  border-bottom: 1px solid var(--border-color);
  transition: background 0.1s ease;
}

.rp-msg-friend-item:hover {
  background: var(--surface-alpha);
}

/* ── Thread View ──────────────────────── */

.rp-msg-thread {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.rp-msg-load-more {
  text-align: center;
  padding: 4px;
  flex-shrink: 0;
}

.rp-msg-load-more button {
  background: none;
  border: none;
  color: var(--color-primary);
  font-size: 11px;
  cursor: pointer;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

.rp-msg-load-more button:hover {
  background: var(--surface-primary);
}

.rp-msg-messages {
  flex: 1;
  overflow-y: auto;
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-height: 0;
}

.rp-msg-bubble {
  max-width: 85%;
  padding: 6px 10px;
  border-radius: 12px;
  font-size: 13px;
  line-height: 1.4;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.rp-msg-sent {
  align-self: flex-end;
  background: var(--color-primary);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.rp-msg-received {
  align-self: flex-start;
  background: var(--surface-alpha);
  color: var(--text-primary);
  border-bottom-left-radius: 4px;
}

.rp-msg-time {
  font-size: 9px;
  color: var(--text-muted);
  margin-top: 1px;
}

.rp-msg-sent .rp-msg-time {
  color: rgba(255, 255, 255, 0.7);
  text-align: right;
}

.rp-msg-date-sep {
  text-align: center;
  font-size: 10px;
  color: var(--text-muted);
  padding: 6px 0;
}

/* ── Message Input ────────────────────── */

.rp-msg-input {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  padding: 8px 12px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-elevated);
  flex-shrink: 0;
}

.rp-msg-input textarea {
  flex: 1;
  resize: none;
  border: 1px solid var(--input-border);
  border-radius: var(--radius-md);
  padding: 6px 10px;
  font-size: 13px;
  font-family: inherit;
  background: var(--input-bg);
  color: var(--text-primary);
  max-height: 80px;
  line-height: 1.4;
}

.rp-msg-input textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-focus);
}

.rp-msg-input textarea::placeholder {
  color: var(--text-muted);
}

.rp-msg-send {
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  padding: 6px 10px;
  cursor: pointer;
  font-size: 12px;
  flex-shrink: 0;
  transition: background 0.15s ease;
}

.rp-msg-send:hover {
  background: var(--color-primary-dark);
}

.rp-msg-send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ── Message Empty State ──────────────── */

.rp-msg-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  color: var(--text-muted);
  text-align: center;
}

.rp-msg-empty i {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.rp-msg-empty p {
  font-size: 12px;
  margin: 0;
}

/* ── Mobile Overlay ───────────────────── */

.rp-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 99;
  display: none;
}

.right-panel.rp-open ~ .rp-overlay {
  display: block;
}

/* ── Mobile Toggle Button ─────────────── */

.rp-mobile-toggle {
  position: fixed;
  top: 12px;
  right: 12px;
  z-index: 90;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 16px;
}

/* ── Focus States ─────────────────────── */

.rp-expand-btn:focus-visible,
.rp-collapse-btn:focus-visible,
.rp-close-mobile:focus-visible,
.rp-mobile-toggle:focus-visible,
.rp-nav-item:focus-visible {
  box-shadow: var(--shadow-focus);
  outline: none;
}

/* ── Responsive ───────────────────────── */

@media (min-width: 1024px) {
  .rp-mobile-toggle {
    display: none;
  }

  .rp-overlay {
    display: none !important;
  }

  .rp-close-mobile {
    display: none;
  }
}

@media (max-width: 1023px) {
  .right-panel {
    transform: translateX(100%);
    transition: transform var(--transition-modal);
    width: var(--right-panel-width) !important;
  }

  .right-panel.rp-open {
    transform: translateX(0);
  }

  .right-panel .rp-collapsed-strip {
    display: none !important;
  }

  .right-panel .rp-content {
    display: flex !important;
  }

  .rp-close-mobile {
    display: block;
  }

  .rp-collapse-btn {
    display: none;
  }
}

@media (max-width: 480px) {
  .right-panel {
    width: calc(100% - 1rem) !important;
    right: 0.5rem;
  }

  .rp-msg-input textarea {
    font-size: 1rem;
  }
}