/* ============================================================
   mail.css — Mail App Interior Styling
   macOS Desktop Website
   ============================================================ */

/* ── 3-Pane Layout ──────────────────────────────────────────── */
#window-mail .window-content {
  display: flex;
  flex-direction: row;
  overflow: hidden;
  height: 100%;
}

/* ── Pane 1: Mailboxes Sidebar ──────────────────────────────── */
.mail-sidebar {
  width: 200px;
  flex-shrink: 0;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border-primary);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding-top: 4px;
}

.mail-sidebar-header {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--sidebar-header);
  letter-spacing: 0.06em;
  padding: 10px 14px 6px;
}

.mail-mailbox-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 12px;
  font-size: 13px;
  color: var(--text-primary);
  cursor: default;
  border-radius: 6px;
  margin: 1px 6px;
  min-height: 32px;
  position: relative;
  transition: background 0.1s ease;
}

.mail-mailbox-item.active {
  background: var(--highlight-row);
  color: var(--text-primary);
}

.mail-mailbox-item .mailbox-icon {
  font-size: 15px;
  flex-shrink: 0;
  width: 20px;
  text-align: center;
}

.mail-mailbox-item .mailbox-label {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mail-unread-badge {
  min-width: 18px;
  height: 18px;
  background: var(--accent);
  color: var(--surface-primary);
  font-size: 10px;
  font-weight: 700;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
  flex-shrink: 0;
}

/* ── Pane 2: Message List ───────────────────────────────────── */
.mail-message-list-pane {
  width: 280px;
  flex-shrink: 0;
  background: var(--surface-primary);
  border-right: 1px solid var(--border-primary);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.mail-message-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px 8px;
  border-bottom: 1px solid var(--border-secondary);
  flex-shrink: 0;
}

.mail-message-list-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.mail-message-count {
  font-size: 11px;
  color: var(--text-tertiary);
}

/* Compose button — the primary real action */
.mail-compose-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: calc(100% - 24px);
  margin: 10px 12px 8px;
  padding: 9px 16px;
  background: var(--accent);
  color: var(--surface-primary);
  font-family: var(--font-system);
  font-size: 13px;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  border: none;
  min-height: 44px;
  transition: background 0.15s ease, transform 0.1s ease;
  flex-shrink: 0;
}

.mail-compose-btn:hover {
  background: var(--accent-hover);
}

.mail-compose-btn:active {
  transform: scale(0.97);
}

.mail-compose-btn svg {
  flex-shrink: 0;
}

/* Message list scroll area */
.mail-messages-scroll {
  flex: 1;
  overflow-y: auto;
}

/* Individual fake email preview */
.mail-message-item {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-tertiary);
  cursor: pointer;
  position: relative;
  transition: background 0.1s ease;
}

.mail-message-item:hover {
  background: var(--surface-secondary);
}

.mail-message-item.active {
  background: var(--highlight-row);
}

.mail-message-item.unread .mail-msg-sender::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 6px;
  flex-shrink: 0;
}

.mail-msg-row-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2px;
}

.mail-msg-sender {
  display: flex;
  align-items: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}

.mail-msg-time {
  font-size: 11px;
  color: var(--text-tertiary);
  flex-shrink: 0;
  margin-left: 8px;
}

.mail-msg-subject {
  font-size: 13px;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 2px;
}

.mail-msg-preview {
  font-size: 12px;
  color: var(--text-tertiary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Pane 3: Viewer / Compose ───────────────────────────────── */
.mail-viewer-pane,
.mail-compose-pane {
  flex: 1;
  background: var(--surface-primary);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ── Full message view ──────────────────────────────────────── */
.mail-message-view {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

.mail-message-view-header {
  padding: 14px 18px 12px;
  border-bottom: 1px solid var(--border-secondary);
  flex-shrink: 0;
}

.mail-message-view-subject {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.mail-message-view-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.mail-message-view-from {
  font-size: 12px;
  color: var(--text-secondary);
}

.mail-message-view-date {
  font-size: 12px;
  color: var(--text-quaternary);
  flex-shrink: 0;
}

.mail-message-view-body {
  flex: 1;
  overflow-y: auto;
  padding: 18px 20px 24px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-primary);
}

/* Rich text in message body */
.mail-message-view-body p  { margin: 0 0 0.85em; }
.mail-message-view-body strong,
.mail-message-view-body b  { font-weight: 700; }
.mail-message-view-body em,
.mail-message-view-body i  { font-style: italic; }
.mail-message-view-body ul,
.mail-message-view-body ol { margin: 0 0 0.85em 1.4em; padding: 0; }
.mail-message-view-body li { margin-bottom: 0.3em; }
.mail-message-view-body a  { color: var(--accent); text-decoration: none; }
.mail-message-view-body a:hover { text-decoration: underline; }

/* Scrollbar for message body */
.mail-message-view-body::-webkit-scrollbar { width: 8px; }
.mail-message-view-body::-webkit-scrollbar-track { background: transparent; }
.mail-message-view-body::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb); border-radius: 4px;
  border: 2px solid transparent; background-clip: padding-box;
}

/* ── Empty state ────────────────────────────────────────────── */
.mail-empty-state {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 10px;
  color: var(--text-placeholder);
  font-size: 13px;
  pointer-events: none;
}

/* Compose header strip */
.mail-compose-header-bar {
  padding: 12px 16px 8px;
  border-bottom: 1px solid var(--border-secondary);
  flex-shrink: 0;
}

.mail-compose-heading {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

/* "No preview" state when clicking a fake email */
.mail-no-preview {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 8px;
  color: var(--text-placeholder);
  font-size: 14px;
  pointer-events: none;
}

/* ── Compose Form ───────────────────────────────────────────── */
.mail-compose-form {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* Field rows */
.mail-field-row {
  display: flex;
  align-items: center;
  padding: 0 16px;
  border-bottom: 1px solid var(--border-secondary);
  min-height: 40px;
  flex-shrink: 0;
}

.mail-field-label {
  font-size: 13px;
  color: var(--text-tertiary);
  width: 60px;
  flex-shrink: 0;
}

/* "To" recipient pill */
.mail-to-pill {
  display: inline-flex;
  align-items: center;
  background: var(--highlight-row);
  color: var(--accent);
  font-size: 13px;
  font-weight: 500;
  border-radius: 12px;
  padding: 3px 10px;
  user-select: none;
}

/* Subject & Cc inputs */
.mail-field-input {
  flex: 1;
  border: none;
  outline: none;
  font-family: var(--font-system);
  font-size: 13px;
  color: var(--text-primary);
  background: transparent;
  padding: 8px 0;
  min-height: 40px;
}

.mail-field-input::placeholder {
  color: var(--text-placeholder);
}

/* Message body */
.mail-body-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 12px 16px;
  gap: 8px;
}

.mail-body-textarea {
  flex: 1;
  border: none;
  outline: none;
  resize: none;
  font-family: var(--font-system);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-primary);
  background: transparent;
  padding: 0;
  min-height: 0;
}

.mail-body-textarea::placeholder {
  color: var(--text-placeholder);
}

/* ── Form Footer (Send button + status) ─────────────────────── */
.mail-form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-top: 1px solid var(--border-secondary);
  flex-shrink: 0;
}

.mail-send-btn {
  background: var(--accent);
  color: var(--surface-primary);
  font-family: var(--font-system);
  font-size: 13px;
  font-weight: 600;
  border: none;
  border-radius: 6px;
  padding: 8px 20px;
  cursor: pointer;
  min-height: 34px;
  min-width: 80px;
  transition: background 0.15s ease, opacity 0.15s ease, transform 0.1s ease;
}

.mail-send-btn:hover:not(:disabled) {
  background: var(--accent-hover);
}

.mail-send-btn:active:not(:disabled) {
  transform: scale(0.96);
}

.mail-send-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Status message (Sending… / Sent! / Error) */
.mail-form-status {
  font-size: 13px;
  color: var(--text-tertiary);
  transition: opacity 0.3s ease;
  opacity: 0;
  min-width: 100px;
}

.mail-form-status.visible {
  opacity: 1;
}

.mail-form-status.success {
  color: var(--color-success);
}

.mail-form-status.error {
  color: var(--color-error);
}

/* Field focus state */
.mail-field-row:focus-within {
  background: var(--surface-inset);
}

.mail-field-input:focus {
  caret-color: var(--accent);
}

.mail-body-textarea:focus {
  caret-color: var(--accent);
}

/* ── macOS-style Scrollbars ─────────────────────────────────── */
.mail-messages-scroll::-webkit-scrollbar,
.mail-sidebar::-webkit-scrollbar {
  width: 8px;
}

.mail-messages-scroll::-webkit-scrollbar-track,
.mail-sidebar::-webkit-scrollbar-track {
  background: transparent;
}

.mail-messages-scroll::-webkit-scrollbar-thumb,
.mail-sidebar::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 4px;
  border: 2px solid transparent;
  background-clip: padding-box;
}

.mail-messages-scroll::-webkit-scrollbar-thumb:hover,
.mail-sidebar::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-thumb-hover);
  background-clip: padding-box;
  border: 2px solid transparent;
}