/* ========================================
   NeonMail - Mail Layout & Components
   ======================================== */

/* ---- Login Page ---- */

.login-view {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

/* CRT Scanline overlay */
.login-view::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 240, 255, 0.015) 2px,
    rgba(0, 240, 255, 0.015) 4px
  );
  pointer-events: none;
  z-index: 1;
}

.login-card {
  width: 100%;
  max-width: 400px;
  padding: 40px 32px;
  background: var(--bg-panel);
  border-radius: var(--radius-xl);
  position: relative;
  z-index: 2;
}

/* Animated gradient border */
.login-card::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: calc(var(--radius-xl) + 2px);
  background: conic-gradient(
    from var(--login-border-angle, 0deg),
    var(--neon-cyan),
    var(--neon-purple),
    var(--neon-magenta),
    var(--neon-cyan)
  );
  z-index: -1;
  animation: login-border-spin 4s linear infinite;
}

@property --login-border-angle {
  syntax: "<angle>";
  initial-value: 0deg;
  inherits: false;
}

@keyframes login-border-spin {
  to { --login-border-angle: 360deg; }
}

.login-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-xl);
  background: var(--bg-panel);
  z-index: -1;
}

.login-title {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 8px;
  letter-spacing: 6px;
  color: var(--neon-cyan);
  text-shadow: 0 0 20px var(--glow-cyan), 0 0 40px var(--glow-cyan);
  animation: neon-flicker 3s ease-in-out infinite;
}

.login-subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 32px;
  font-family: var(--font-mono);
  letter-spacing: 2px;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.login-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.login-error {
  color: var(--neon-magenta);
  font-size: 13px;
  text-align: center;
  min-height: 20px;
  font-family: var(--font-mono);
}

.login-btn {
  margin-top: 8px;
  padding: 12px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* ---- Main App Layout ---- */

.app-layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ---- Sidebar ---- */

.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-panel);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: transform var(--transition-smooth);
  z-index: 100;
}

.sidebar-header {
  height: var(--header-height);
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-logo {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--neon-cyan);
  text-shadow: 0 0 10px var(--glow-cyan);
}

.sidebar-compose {
  margin: 16px;
}

.compose-btn {
  width: 100%;
  padding: 10px;
  font-weight: 600;
  justify-content: center;
  letter-spacing: 1px;
}

.sidebar-folders {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
}

.folder-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  transition: all var(--transition-normal);
  position: relative;
  border-left: 3px solid transparent;
}

.folder-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.folder-item.active {
  color: var(--neon-cyan);
  background: rgba(0, 240, 255, 0.05);
  border-left-color: var(--neon-cyan);
}

.folder-item .folder-icon {
  font-size: 16px;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}

.folder-item .folder-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.folder-item .folder-count {
  flex-shrink: 0;
}

.sidebar-user {
  padding: 16px 20px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
  color: var(--text-inverse);
  flex-shrink: 0;
}

.user-email {
  flex: 1;
  font-size: 12px;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: var(--font-mono);
}

.logout-btn {
  padding: 6px;
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--transition-fast);
  background: none;
  border: none;
  font-size: 16px;
}

.logout-btn:hover {
  color: var(--neon-magenta);
}

/* ---- Main Content ---- */

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}

/* ---- Toolbar ---- */

.toolbar {
  height: var(--toolbar-height);
  padding: 0 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.toolbar-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.toolbar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

.toolbar-divider {
  width: 1px;
  height: 24px;
  background: var(--border-color);
  margin: 0 4px;
}

.toolbar-info {
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.selection-count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--neon-cyan);
  animation: stagger-in 0.2s ease;
}

.mobile-menu-btn {
  display: none;
  padding: 8px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 20px;
  cursor: pointer;
}

/* ---- Message List ---- */

.message-list-container {
  flex: 1;
  overflow-y: auto;
}

.message-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(42, 42, 58, 0.5);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.message-row:hover {
  background: var(--bg-hover);
  box-shadow: inset 0 0 30px rgba(0, 240, 255, 0.03);
}

.message-row.selected {
  background: rgba(0, 240, 255, 0.06);
  border-left: 2px solid var(--neon-cyan);
}

.message-row.unread {
  background: rgba(0, 240, 255, 0.02);
}

.message-row.unread .msg-subject {
  color: var(--text-primary);
  font-weight: 600;
}

.message-row.unread .msg-from {
  color: var(--neon-cyan);
  font-weight: 600;
}

.message-row.unread::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  background: var(--neon-cyan);
  border-radius: 0 2px 2px 0;
  box-shadow: 0 0 6px var(--glow-cyan);
}

.msg-checkbox {
  flex-shrink: 0;
}

.msg-star {
  flex-shrink: 0;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 16px;
  transition: all var(--transition-fast);
}

.msg-star:hover, .msg-star.starred {
  color: var(--neon-yellow);
  text-shadow: 0 0 8px rgba(255, 230, 0, 0.4);
}

.msg-content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.msg-top {
  display: flex;
  align-items: center;
  gap: 8px;
}

.msg-from {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 200px;
}

.msg-subject {
  font-size: 13px;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

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

.msg-meta {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}

.msg-date {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  white-space: nowrap;
}

.msg-attachment-icon {
  font-size: 13px;
  color: var(--text-muted);
}

/* ---- Pagination ---- */

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-panel);
}

.page-info {
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  padding: 0 12px;
}

/* ---- Reader View ---- */

.reader-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.reader-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-panel);
  animation: view-fade-in 0.15s ease;
}

.reader-subject {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.3;
}

.reader-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-size: 13px;
}

.reader-from {
  color: var(--neon-cyan);
  font-weight: 500;
}

.reader-to {
  color: var(--text-secondary);
}

.reader-date {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  margin-left: auto;
}

.reader-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.reader-body {
  flex: 1;
  overflow-y: auto;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.reader-body iframe {
  width: 100%;
  flex: 1;
  border: none;
  background: #fff;
  border-radius: var(--radius-md);
  margin: 0;
  min-height: 0;
}

.reader-text {
  flex: 1;
  padding: 24px;
  white-space: pre-wrap;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-primary);
  animation: view-fade-in 0.2s ease;
}

/* Attachments in reader */
.reader-attachments {
  padding: 16px 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.attachment-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  max-width: 260px;
}

.attachment-card:hover {
  border-color: var(--neon-cyan);
  box-shadow: 0 0 12px var(--glow-cyan);
  transform: translateY(-2px);
}

.attachment-icon {
  font-size: 20px;
  color: var(--neon-cyan);
}

.attachment-info {
  overflow: hidden;
}

.attachment-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.attachment-size {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ---- Compose View ---- */

.compose-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: view-fade-in 0.15s ease;
}

.compose-header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-panel);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.compose-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.compose-fields {
  padding: 16px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-bottom: 1px solid var(--border-color);
}

.compose-field {
  display: flex;
  align-items: center;
  gap: 12px;
}

.compose-field-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  width: 50px;
  flex-shrink: 0;
  font-family: var(--font-mono);
}

.compose-field .input {
  border: none;
  border-bottom: 1px solid var(--border-color);
  border-radius: 0;
  padding: 8px 4px;
  background: transparent;
}

.compose-field .input:focus {
  border-bottom-color: var(--neon-cyan);
  box-shadow: 0 1px 0 var(--neon-cyan);
}

.compose-body {
  flex: 1;
  padding: 16px 24px;
  overflow-y: auto;
}

.compose-body .textarea {
  height: 100%;
  min-height: 300px;
  border: none;
  background: transparent;
  resize: none;
  font-size: 14px;
  line-height: 1.7;
}

.compose-body .textarea:focus {
  box-shadow: none;
}

.compose-footer {
  padding: 12px 24px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-panel);
  display: flex;
  align-items: center;
  gap: 12px;
}

.compose-attachments {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 8px 24px;
}

.compose-attachment-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  font-size: 12px;
  color: var(--text-secondary);
}

.compose-attachment-remove {
  cursor: pointer;
  color: var(--text-muted);
  transition: color var(--transition-fast);
  background: none;
  border: none;
  font-size: 14px;
  line-height: 1;
  padding: 0;
}

.compose-attachment-remove:hover {
  color: var(--neon-magenta);
}

/* ---- Responsive ---- */

@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    transform: translateX(-100%);
    z-index: 200;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.4);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .mobile-menu-btn {
    display: block;
  }

  .msg-from {
    max-width: 120px;
  }

  .reader-header {
    padding: 16px;
  }

  .reader-subject {
    font-size: 17px;
  }

  .compose-fields {
    padding: 12px 16px;
  }

  .compose-body {
    padding: 12px 16px;
  }

  .compose-footer {
    padding: 10px 16px;
  }
}