:root {
  --color-bg: #FAFAF9;
  --color-bg-secondary: #F5F5F4;
  --color-text: #1C1917;
  --color-text-secondary: #78716c;
  --color-border: #E7E5E4;
  --color-primary: #1C1917;
  --color-primary-hover: #292524;
  --color-accent: #FF2867;
  --color-accent-hover: #e91e63;
  --color-success: #22c55e;
  --color-danger: #ef4444;
  --color-warning: #f59e0b;
  --sidebar-width: 220px;
  --sidebar-collapsed-width: 60px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --transition: 0.2s ease;
}

:root.dark {
  --color-bg: #0F0F0F;
  --color-bg-secondary: #1C1917;
  --color-text: #fafaf9;
  --color-text-secondary: #a8a29e;
  --color-border: #292524;
  --color-primary: #fafaf9;
  --color-primary-hover: #ffffff;
  --color-accent: #FF2867;
  --color-accent-hover: #f472b6;
}

*, *::before, *::after { box-sizing: border-box; }

html { font-size: 16px; }
body {
  margin: 0;
  padding: 0;
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

.app-content {
  flex: 1;
  margin-left: var(--sidebar-collapsed-width);
  padding: 24px;
  max-width: 1200px;
  transition: margin-left var(--transition);
}

.app-content:has(.landing-page),
.app-content:has(.login-view),
.app-content:has(.unsubscribe-view),
.app-content:has(.confirm-view),
.app-content:has(.archive-view) {
  margin-left: 0;
  max-width: none;
  padding: 0;
}

/* === Sidebar (two-column: icons + labels) === */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  height: 100dvh;
  z-index: 200;
  display: grid;
  grid-template-columns: var(--sidebar-collapsed-width) 1fr;
  overflow: clip;
  isolation: isolate;
  pointer-events: none;
}

.sidebar-icons {
  grid-column: 1;
  display: grid;
  grid-template-rows: 56px 1fr auto;
  background: var(--color-bg-secondary);
  box-shadow: 1px 0 0 0 var(--color-border);
  pointer-events: auto;
  contain: strict;
  will-change: transform;
  transform: translateZ(0);
  z-index: 2;
}

.sidebar-header {
  grid-row: 1;
  display: grid;
  place-items: center;
  height: 56px;
}

.sidebar-nav {
  grid-row: 2;
  display: grid;
  grid-auto-rows: 48px;
  align-content: start;
}

.sidebar-actions {
  grid-row: 3;
  display: grid;
  grid-auto-rows: 48px;
  justify-items: center;
  box-shadow: 0 -1px 0 0 var(--color-border);
}

.icon-btn {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin: 0 auto;
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  cursor: pointer;
  padding: 0;
  transition: color 150ms ease, background-color 150ms ease;
}

.icon-btn:hover {
  color: var(--color-text);
  background: var(--color-border);
}

.icon-btn.active {
  color: var(--color-accent);
  background: rgba(255, 40, 103, 0.08);
}

.icon-btn svg {
  width: 20px;
  height: 20px;
}

.toggle-btn svg {
  transition: transform 240ms ease;
}
.sidebar.collapsed .toggle-btn svg {
  transform: rotate(180deg);
}

/* Labels column */
.sidebar-labels {
  grid-column: 2;
  display: grid;
  grid-template-rows: 56px 1fr auto;
  background: var(--color-bg-secondary);
  box-shadow: 1px 0 0 0 var(--color-border);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  overflow: hidden;
  pointer-events: auto;
  transform: translateX(0);
  opacity: 1;
  transition: transform 240ms ease, opacity 200ms ease;
  will-change: transform, opacity;
  contain: layout style paint;
  z-index: 1;
}

.labels-header {
  grid-row: 1;
  display: grid;
  align-content: center;
  height: 56px;
  padding: 0 16px;
}

.labels-nav {
  grid-row: 2;
  display: grid;
  grid-auto-rows: 48px;
  align-content: start;
}

.labels-actions {
  grid-row: 3;
  display: grid;
  grid-auto-rows: 48px;
  box-shadow: 0 -1px 0 0 var(--color-border);
}

.brand-name {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
}

.label-btn {
  height: 48px;
  display: grid;
  align-content: center;
  padding: 0 16px;
  border: none;
  background: none;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  text-align: left;
  width: 100%;
  transition: color 150ms ease, background-color 150ms ease;
}

.label-btn:hover {
  color: var(--color-text);
  background: var(--color-border);
}

.label-btn.active {
  color: var(--color-accent);
  background: rgba(255, 40, 103, 0.08);
}

/* Collapsed: labels slide behind icons */
.sidebar.collapsed .sidebar-labels {
  transform: translateX(-100%);
  opacity: 0;
  pointer-events: none;
}

/* Backdrop */
.sidebar-backdrop {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.3);
  z-index: 199;
  opacity: 0; pointer-events: none;
  transition: opacity 240ms ease;
}
.sidebar-backdrop.visible { opacity: 1; pointer-events: auto; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid var(--color-border);
  background: var(--color-bg-secondary);
  color: var(--color-text);
}

.btn:hover { background: var(--color-border); }

.btn-primary {
  background: var(--color-primary);
  color: var(--color-bg);
  border-color: var(--color-primary);
}

.btn-primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); }

.btn-secondary {
  background: var(--color-bg-secondary);
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-secondary:hover { background: var(--color-border); }

.btn-danger {
  background: var(--color-danger);
  color: white;
  border-color: var(--color-danger);
}

.btn-danger:hover { background: #d32f2f; border-color: #d32f2f; }

.btn-icon {
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
}

.btn-icon:hover { background: var(--color-border); color: var(--color-text); }
.btn-icon.danger:hover { background: var(--color-danger); color: white; }

.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-full { width: 100%; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-size: 14px; font-weight: 500; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-secondary);
  color: var(--color-text);
  font-size: 14px;
  transition: var(--transition);
}

.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-group textarea { min-height: 100px; resize: vertical; }

/* Cards */
.card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
}

/* Page Header */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.page-header h1 {
  margin: 0;
  font-size: 24px;
}

/* Editor Page */
.editor-page {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 48px);
}

.editor-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  gap: 16px;
  flex-wrap: wrap;
}

.editor-title-section {
  display: flex;
  align-items: center;
  gap: 16px;
}

.back-link {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 14px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.back-link:hover {
  background: var(--color-border);
  color: var(--color-text);
}

.title-input {
  flex: 1;
  font-size: 20px;
  font-weight: 500;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-secondary);
  color: var(--color-text);
  min-width: 200px;
}

.title-input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.editor-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.editor-container {
  flex: 1;
  display: flex;
  gap: 0;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.editor-container.preview-mode .editor-panel {
  display: none;
}

.editor-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.toolbar {
  display: flex;
  gap: 4px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  flex-wrap: wrap;
  align-items: center;
}

.toolbar button {
  padding: 6px 10px;
  border: none;
  background: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  font-weight: 500;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.toolbar button:hover {
  background: var(--color-border);
  color: var(--color-text);
}

.toolbar button.is-active {
  background: var(--color-primary);
  color: var(--color-bg);
}

.toolbar button svg {
  display: block;
}

.separator {
  width: 1px;
  height: 20px;
  background: var(--color-border);
  margin: 0 4px;
}

.editor-content {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
}

.editor-content .ProseMirror {
  min-height: 100%;
  outline: none;
}

.editor-content .ProseMirror p.is-editor-empty:first-child::before {
  content: attr(data-placeholder);
  float: left;
  color: var(--color-text-secondary);
  pointer-events: none;
  height: 0;
}

/* Preview Panel */
.preview-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-left: 1px solid var(--color-border);
}

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

.preview-header h3 {
  margin: 0;
  font-size: 14px;
  font-weight: 500;
}

.preview-badge {
  font-size: 12px;
  color: var(--color-text-secondary);
  background: var(--color-border);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
}

.email-preview {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  background: #f5f5f5;
}

.email-preview iframe {
  width: 100%;
  height: 100%;
  border: none;
  background: white;
  border-radius: var(--radius-md);
  min-height: 400px;
}

.dark .email-preview { background: #0a0a0a; }
.dark .email-preview iframe { background: var(--color-bg-secondary); }

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: center;
}

.stat-value {
  display: block;
  font-size: 32px;
  font-weight: 600;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* Newsletter List */
.newsletter-list {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.newsletter-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
}

.newsletter-item:last-child { border-bottom: none; }

.newsletter-info h3 {
  margin: 0 0 6px 0;
  font-size: 15px;
  font-weight: 500;
}

.newsletter-meta {
  display: flex;
  gap: 12px;
  align-items: center;
}

.date {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.newsletter-actions {
  display: flex;
  gap: 8px;
}

/* Filters */
.filters {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
}

.search-input, .filter-select {
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-secondary);
  color: var(--color-text);
  font-size: 14px;
}

.search-input {
  flex: 1;
  max-width: 300px;
}

.search-input:focus, .filter-select:focus {
  outline: none;
  border-color: var(--color-primary);
}

/* Tables */
.subscribers-table {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow-x: auto;
}

.subscribers-table table {
  width: 100%;
  border-collapse: collapse;
}

.subscribers-table th,
.subscribers-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.subscribers-table th {
  font-weight: 500;
  font-size: 13px;
  color: var(--color-text-secondary);
  background: var(--color-bg);
}

.subscribers-table tr:last-child td {
  border-bottom: none;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
  text-transform: capitalize;
  background: var(--color-border);
  color: var(--color-text);
}

/* Public Page */
.public-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  padding: 20px;
}

.public-card {
  text-align: center;
  padding: 40px;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  max-width: 400px;
}

.public-card h1 {
  font-size: 28px;
  margin: 0 0 8px 0;
}

.public-card .small {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.public-card svg {
  color: var(--color-success);
  margin-bottom: 16px;
}

.error-message {
  color: var(--color-danger);
  font-size: 14px;
  margin-top: 12px;
}

.success-message {
  color: var(--color-success);
  font-size: 14px;
  margin-top: 12px;
}

/* Landing Page Styles */
.landing-page {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-border) 100%);
}

.landing-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 60px 24px;
}

.landing-hero {
  text-align: center;
  margin-bottom: 60px;
}

.landing-title {
  font-family: 'DM Serif Display', serif;
  font-size: 56px;
  margin: 0 0 16px 0;
  letter-spacing: -2px;
}

.landing-subtitle {
  font-size: 20px;
  color: var(--color-text-secondary);
  margin: 0 0 32px 0;
}

.landing-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.landing-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
}

.feature-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-border);
  border-radius: 12px;
  color: var(--color-text);
}

.feature-card h3 {
  margin: 0 0 8px 0;
  font-size: 16px;
}

.feature-card p {
  margin: 0;
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* Section Headers */
.section {
  margin-top: 32px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.section-header h2 {
  margin: 0;
  font-size: 18px;
}

.link {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 14px;
}

.link:hover {
  color: var(--color-text);
}

/* Help Text */
.help-text {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin: 4px 0 0 0;
}

/* Loading */
.loading {
  padding: 40px;
  text-align: center;
  color: var(--color-text-secondary);
}

/* Empty State */
.empty-state {
  padding: 40px;
  text-align: center;
  color: var(--color-text-secondary);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}

.modal {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  padding: 24px;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.modal-header h2 {
  margin: 0;
  font-size: 18px;
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--color-text-secondary);
  padding: 0;
  line-height: 1;
}

.modal-close:hover {
  color: var(--color-text);
}

.modal-body {
  margin-bottom: 16px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 24px;
}

/* Tiptap Styles */
.ProseMirror h1 { font-size: 24px; font-weight: 600; margin: 16px 0 8px 0; }
.ProseMirror h2 { font-size: 20px; font-weight: 600; margin: 14px 0 7px 0; }
.ProseMirror h3 { font-size: 16px; font-weight: 600; margin: 12px 0 6px 0; }
.ProseMirror p { margin: 8px 0; }
.ProseMirror ul, .ProseMirror ol { padding-left: 20px; margin: 8px 0; }
.ProseMirror blockquote {
  border-left: 3px solid var(--color-border);
  padding-left: 16px;
  margin: 12px 0;
  color: var(--color-text-secondary);
}
.ProseMirror img { max-width: 100%; height: auto; border-radius: var(--radius-md); }
.ProseMirror a { color: var(--color-accent); }
.ProseMirror hr { border: none; border-top: 1px solid var(--color-border); margin: 16px 0; }
.ProseMirror code {
  background: var(--color-border);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-family: 'SF Mono', Monaco, monospace;
  font-size: 13px;
}
.ProseMirror pre {
  background: var(--color-bg);
  padding: 12px;
  border-radius: var(--radius-md);
  overflow-x: auto;
}
.ProseMirror pre code { background: none; padding: 0; }
.ProseMirror mark {
  background: #fff9c4;
  padding: 1px 4px;
  border-radius: 2px;
}
.ProseMirror u { text-decoration: underline; }
.ProseMirror text-align-left { text-align: left; }
.ProseMirror text-align-center { text-align: center; }
.ProseMirror text-align-right { text-align: right; }

/* Archive Grid */
.archive-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.archive-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
}

.archive-content {
  flex: 1;
  margin-bottom: 16px;
  line-height: 1.6;
}

.archive-footer h3 {
  margin: 0 0 4px 0;
  font-size: 16px;
}

.archive-footer time {
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* Login Page */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  padding: 20px;
}

.auth-card {
  width: 100%;
  max-width: 400px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.auth-header {
  text-align: center;
  margin-bottom: 32px;
}

.auth-header h1 {
  font-family: 'DM Serif Display', serif;
  font-size: 32px;
  margin: 0 0 8px 0;
  color: var(--color-text);
}

.auth-header p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 14px;
}

.auth-form {
  margin-bottom: 24px;
}

.auth-footer {
  text-align: center;
  font-size: 14px;
}

.auth-footer a {
  color: var(--color-text-secondary);
  text-decoration: none;
}

.auth-footer a:hover {
  color: var(--color-text);
}
@media (max-width: 768px) {
  .sidebar:not(.expanded) .toggle-btn svg {
    transform: rotate(180deg);
  }
  .sidebar:not(.expanded) .sidebar-labels {
    transform: translateX(-100%);
    opacity: 0;
    pointer-events: none;
  }
  .sidebar.expanded .sidebar-labels {
    box-shadow: var(--shadow-lg);
  }
  
  .app-content { margin-left: var(--sidebar-collapsed-width) !important; padding: 16px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .editor-container { flex-direction: column; }
  .preview-panel { border-left: none; border-top: 1px solid var(--color-border); }
  .campaign-actions { flex-direction: column; }
  .landing-title { font-size: 40px; }
  .filters { flex-direction: column; }
  .search-input { max-width: none; }
  .newsletter-item { flex-direction: column; align-items: flex-start; gap: 12px; }
  .newsletter-actions { width: 100%; }
  .newsletter-actions .btn { flex: 1; }
  
  .toolbar {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
  }
}

@media (max-width: 480px) {
  .landing-features { grid-template-columns: 1fr; }
  .modal { padding: 16px; margin: 16px; }
  .public-card { padding: 24px; }
}