/* Reset och bas-styling */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* iOS-inspirerade färger */
  --primary-color: #007AFF;
  --primary-dark: #0051D5;
  --primary-light: #5AC8FA;
  --secondary-color: #8E8E93;
  --success-color: #34C759;
  --danger-color: #FF3B30;
  --warning-color: #FF9500;
  
  --bg-color: #F2F2F7;
  --bg-secondary: #E5E5EA;
  --surface-color: #ffffff;
  --border-color: #C6C6C8;
  --separator-color: rgba(60, 60, 67, 0.36);
  --text-primary: #000000;
  --text-secondary: #3C3C43;
  --text-tertiary: #8E8E93;
  --text-muted: #AEAEB2;
  
  /* iOS-stil skuggor */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.06);
  
  /* iOS-stil border-radius */
  --border-radius: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 20px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.25rem;
  --spacing-xl: 1.5rem;
  --spacing-xxl: 2rem;
  
  /* iOS safe area */
  --safe-area-top: env(safe-area-inset-top);
  --safe-area-bottom: env(safe-area-inset-bottom);
  --safe-area-left: env(safe-area-inset-left);
  --safe-area-right: env(safe-area-inset-right);
  
  --font-sans: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'SF Pro Display', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', 'Menlo', Monaco, 'Cascadia Code', 'Courier New', monospace;
}

/* Dark Mode - Auto (system preference) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    /* iOS mörkt tema */
    --primary-color: #0A84FF;
    --primary-dark: #409CFF;
    --primary-light: #64B5F6;
    --secondary-color: #98989D;
    --success-color: #32D74B;
    --danger-color: #FF453A;
    --warning-color: #FF9F0A;
    
    --bg-color: #000000;
    --bg-secondary: #1C1C1E;
    --surface-color: #1C1C1E;
    --border-color: #38383A;
    --separator-color: rgba(84, 84, 88, 0.65);
    --text-primary: #FFFFFF;
    --text-secondary: #EBEBF5;
    --text-tertiary: #EBEBF5;
    --text-muted: #8E8E93;
    
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.2);
  }
}

/* Dark Mode - Forced */
:root[data-theme="dark"] {
  /* iOS mörkt tema */
  --primary-color: #0A84FF;
  --primary-dark: #409CFF;
  --primary-light: #64B5F6;
  --secondary-color: #98989D;
  --success-color: #32D74B;
  --danger-color: #FF453A;
  --warning-color: #FF9F0A;
  
  --bg-color: #000000;
  --bg-secondary: #1C1C1E;
  --surface-color: #1C1C1E;
  --border-color: #38383A;
  --separator-color: rgba(84, 84, 88, 0.65);
  --text-primary: #FFFFFF;
  --text-secondary: #EBEBF5;
  --text-tertiary: #EBEBF5;
  --text-muted: #8E8E93;
  
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.2);
}

:root[data-theme="dark"] .mail-item.unread {
  background: linear-gradient(90deg, rgba(10, 132, 255, 0.15) 0%, rgba(10, 132, 255, 0.05) 100%);
}

:root[data-theme="dark"] .mail-item.unread:hover {
  background: linear-gradient(90deg, rgba(10, 132, 255, 0.20) 0%, rgba(10, 132, 255, 0.08) 100%);
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.47;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* iOS-stil smooth scrolling */
  -webkit-overflow-scrolling: touch;
  overflow-x: hidden;
  /* Förhindra text-selection på iOS */
  -webkit-tap-highlight-color: transparent;
  /* iOS safe area */
  padding-top: var(--safe-area-top);
  padding-bottom: var(--safe-area-bottom);
  padding-left: var(--safe-area-left);
  padding-right: var(--safe-area-right);
}

/* Container */
.container {
  max-width: 680px;
  margin: 0 auto;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-top: 60px;
  padding-bottom: 80px;
}

.container:has(.section-mailbox:not(.hidden)),
.container:has(.section-mail:not(.hidden)) {
  max-width: none;
  padding-bottom: 0;
}

/* Header - Fixed top bar */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--surface-color);
  border-bottom: 1px solid var(--separator-color);
  padding: var(--spacing-md) var(--spacing-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(248, 248, 248, 0.95);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .header {
    background: rgba(20, 20, 22, 0.95);
  }
}

:root[data-theme="dark"] .header {
  background: rgba(20, 20, 22, 0.95);
}

.header-content {
  max-width: 680px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-lg);
  transition: max-width 0.2s ease;
  position: relative;
}

.container:has(.section-mailbox:not(.hidden)) .header-content,
.container:has(.section-mail:not(.hidden)) .header-content {
  max-width: none;
}

@media (min-width: 768px) {
  .header-content {
    max-width: none;
  }
}

/* Menu Button */
.menu-button {
  margin-left: auto;
}

/* Menu Dropdown */
.menu-dropdown {
  position: absolute;
  top: 100%;
  right: var(--spacing-lg);
  margin-top: 0.5rem;
  background: var(--surface-color);
  border: 1px solid var(--separator-color);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  min-width: 280px;
  z-index: 1001;
  overflow: hidden;
}

.menu-section {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--separator-color);
}

.menu-section:last-child {
  border-bottom: none;
}

.menu-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-tertiary);
  margin-bottom: var(--spacing-sm);
}

.menu-mailbox-address {
  font-size: 0.9375rem;
  color: var(--text-primary);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.menu-action {
  padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
}

.btn-full {
  width: 100%;
  justify-content: center;
}

/* PWA Configuration Styles */
.pwa-config {
  padding: var(--spacing-md);
  border-top: 1px solid var(--separator-color);
}

.menu-section-title {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-sm);
}

.pwa-setting {
  margin-bottom: var(--spacing-md);
}

.pwa-setting label {
  display: block;
  font-size: 0.9375rem;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.pwa-select {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid var(--separator-color);
  border-radius: var(--border-radius);
  background: var(--surface-color);
  color: var(--text-primary);
  font-size: 0.9375rem;
}

.pwa-toggle {
  display: flex;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.pwa-toggle input[type="checkbox"] {
  margin-right: var(--spacing-sm);
  cursor: pointer;
}

.pwa-setting:last-of-type {
  margin-bottom: var(--spacing-md);
}

/* Pull-to-refresh indicator */
.refresh-indicator {
  position: absolute;
  top: -60px;
  left: 50%;
  transform: translateX(-50%) translateY(0);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.refresh-spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--separator-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  transition: transform 0.3s ease;
}

.refresh-indicator.ready .refresh-spinner {
  transform: rotate(180deg);
}

.refresh-indicator.refreshing .refresh-spinner {
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.menu-row {
  display: flex;
  gap: var(--spacing-sm);
}

.menu-select {
  flex: 1;
  padding: 0.5rem;
  border: 1px solid var(--separator-color);
  border-radius: var(--border-radius);
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-size: 0.9375rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.menu-select:hover {
  background-color: var(--bg-secondary);
}

.menu-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.1);
}

.menu-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.menu-links a {
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.9375rem;
  padding: 0.5rem;
  border-radius: var(--border-radius);
  transition: background 0.15s ease;
}

.menu-links a:hover {
  background: var(--bg-secondary);
}

/* Mailbox Header Info (in header) */
.mailbox-header-info {
  display: none !important;
}



.logo {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.3px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
}

.logo::before {
  content: '📬';
  font-size: 1.5rem;
}

.tagline {
  display: none;
}

.language-select {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--separator-color);
  border-radius: var(--border-radius);
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-size: 0.9375rem;
  cursor: pointer;
  transition: all 0.15s ease;
  -webkit-appearance: none;
  appearance: none;
  background-image: url('data:image/svg+xml;charset=UTF-8,%3csvg width="12" height="8" viewBox="0 0 12 8" fill="none" xmlns="http://www.w3.org/2000/svg"%3e%3cpath d="M1 1.5L6 6.5L11 1.5" stroke="%23007AFF" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/%3e%3c/svg%3e');
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.25rem;
  font-weight: 500;
}

.language-select:hover {
  background-color: var(--bg-secondary);
}

.language-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.1);
}

.footer-right .language-select {
  font-size: 0.8125rem;
  padding: 0.375rem 1.5rem 0.375rem 0.5rem;
  min-width: 50px;
  width: 50px;
}

.language-select option {
  font-size: 1.125rem;
  padding: 0.5rem;
}

/* Theme Select */
.theme-select {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--separator-color);
  border-radius: var(--border-radius);
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-size: 0.9375rem;
  cursor: pointer;
  transition: all 0.15s ease;
  -webkit-appearance: none;
  appearance: none;
  background-image: url('data:image/svg+xml;charset=UTF-8,%3csvg width="12" height="8" viewBox="0 0 12 8" fill="none" xmlns="http://www.w3.org/2000/svg"%3e%3cpath d="M1 1.5L6 6.5L11 1.5" stroke="%23007AFF" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/%3e%3c/svg%3e');
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.25rem;
  font-weight: 500;
}

.theme-select:hover {
  background-color: var(--bg-secondary);
}

.theme-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.1);
}

.footer-right .theme-select {
  font-size: 0.8125rem;
  padding: 0.375rem 1.5rem 0.375rem 0.5rem;
  min-width: 50px;
  width: 50px;
  margin-right: 0.5rem;
}

.theme-select option {
  font-size: 1.125rem;
  padding: 0.5rem;
}

/* Main */
.main {
  flex: 1;
  width: 100%;
  padding: var(--spacing-lg);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.main:has(.section-input:not(.hidden)) {
  justify-content: center;
}

.main:has(.section-mailbox:not(.hidden)),
.main:has(.section-mail:not(.hidden)) {
  padding: 0;
}

/* Section */
.section {
  background: var(--surface-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--spacing-xl);
  border: 1px solid var(--separator-color);
}

.section-input {
  margin: 0 auto;
  max-width: 500px;
  width: 100%;
}

.section-mailbox {
  padding: 0;
  overflow: hidden;
  max-width: none;
  margin: 0;
  width: 100%;
  border-radius: 0;
  border: none;
  box-shadow: none;
  position: relative;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.section-mail {
  max-width: none;
  margin: 0;
  width: 100%;
  border-radius: 0;
  border: none;
  box-shadow: none;
  padding-bottom: calc(var(--spacing-xxl) * 4);
}

.section h2 {
  font-size: 1.375rem;
  margin-bottom: var(--spacing-lg);
  color: var(--text-primary);
  font-weight: 600;
  letter-spacing: -0.5px;
}

.description {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  font-size: 1rem;
  line-height: 1.6;
}

/* Mailbox Form */
.mailbox-form {
  max-width: 500px;
  margin: 0 auto;
}

.input-group {
  display: flex;
  align-items: center;
  background: var(--bg-color);
  border: 1px solid var(--separator-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-sm) var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  transition: all 0.2s ease;
  min-height: 50px;
}

.input-group:focus-within {
  border-color: var(--primary-color);
  background: var(--surface-color);
  box-shadow: 0 0 0 4px rgba(0, 122, 255, 0.1);
}

.mailbox-input {
  flex: 1;
  border: none;
  background: transparent;
  padding: var(--spacing-xs);
  font-size: 1.0625rem;
  font-family: var(--font-mono);
  outline: none;
  color: var(--text-primary);
  -webkit-appearance: none;
  appearance: none;
}

.mailbox-input::placeholder {
  color: var(--text-tertiary);
}

@media (prefers-color-scheme: dark) {
  .input-group {
    background: var(--bg-secondary);
  }
  
  .input-group:focus-within {
    background: var(--surface-color);
  }
}

.domain {
  color: var(--text-secondary);
  font-size: 1.0625rem;
  font-family: var(--font-mono);
  padding-left: var(--spacing-xs);
  font-weight: 500;
  flex-shrink: 0;
  white-space: nowrap;
}

/* Buttons - iOS stil */
.btn {
  display: inline-block;
  padding: 0.875rem var(--spacing-lg);
  font-size: 1.0625rem;
  font-weight: 600;
  text-align: center;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all 0.15s ease-out;
  text-decoration: none;
  font-family: var(--font-sans);
  letter-spacing: -0.3px;
  /* iOS touch optimization */
  -webkit-user-select: none;
  user-select: none;
  touch-action: manipulation;
  min-height: 44px;
}

.btn:active {
  transform: scale(0.97);
  opacity: 0.8;
}

.btn-primary {
  background: var(--primary-color);
  color: white;
  width: 100%;
  box-shadow: 0 1px 3px rgba(0, 122, 255, 0.3);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 122, 255, 0.4);
}

.btn-primary:active {
  background: var(--primary-dark);
  transform: scale(0.97);
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--primary-color);
  font-weight: 600;
  border: 1px solid var(--separator-color);
}

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

.mail-view-header {
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--separator-color);
  margin-bottom: var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mail-actions-group {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.btn-icon {
  background: var(--bg-color);
  color: var(--primary-color);
  padding: 0;
  margin: 0;
  font-weight: 400;
  font-size: 1.25rem;
  border: 1px solid var(--separator-color);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 40px;
  height: 40px;
  min-width: 40px;
  min-height: 40px;
  box-sizing: border-box;
}

.btn-icon svg {
  width: 24px !important;
  height: 24px !important;
  display: block;
  flex-shrink: 0;
}

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

.btn-icon:active {
  transform: scale(0.95);
  opacity: 0.8;
}

/* Info Box - iOS stil */
.info-box {
  background: rgba(0, 122, 255, 0.08);
  border: none;
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  margin-top: var(--spacing-lg);
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.5;
}

/* Feature boxes (fiktiv.se stil) */
.features {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xxl);
  padding-top: var(--spacing-lg);
}

.feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-align: left;
}

.feature-icon {
  font-size: 1.25rem;
  opacity: 0.8;
}

.feature-title {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
}

.feature-text {
  display: none;
}

/* Mailbox Header */
.mailbox-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg) var(--spacing-xl);
  border-bottom: 1px solid var(--separator-color);
  background: var(--surface-color);
}

.mailbox-title {
  flex: 1;
  min-width: 0;
}

#current-mailbox {
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--text-secondary);
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.btn-text {
  background: transparent;
  color: var(--primary-color);
  font-size: 0.9375rem;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-weight: 400;
  border: none;
}

.btn-text:hover {
  opacity: 0.7;
}

.btn-text:active {
  opacity: 0.5;
  transform: none;
}

/* Loading */
.loading {
  text-align: center;
  padding: var(--spacing-xxl) var(--spacing-xl);
}

.loading p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--bg-secondary);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin: 0 auto var(--spacing-lg);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Mail List - iOS stil */
.mail-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  min-height: 200px;
}

.mail-item {
  background: var(--surface-color);
  border: none;
  border-bottom: 1px solid var(--separator-color);
  border-radius: 0;
  padding: var(--spacing-md) var(--spacing-xl);
  cursor: pointer;
  transition: background 0.15s ease;
  min-height: 88px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.mail-item::after {
  content: '›';
  position: absolute;
  right: var(--spacing-lg);
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  color: var(--text-tertiary);
  font-weight: 300;
}

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

.mail-item:active {
  background: var(--bg-secondary);
}

.mail-item.unread {
  background: var(--primary-light);
  background: linear-gradient(90deg, rgba(0, 122, 255, 0.08) 0%, rgba(0, 122, 255, 0.02) 100%);
}

.mail-item.unread:hover {
  background: linear-gradient(90deg, rgba(0, 122, 255, 0.12) 0%, rgba(0, 122, 255, 0.04) 100%);
}

.mail-item.unread .mail-from {
  font-weight: 600;
  color: var(--primary-color);
}

.mail-item.unread .mail-subject {
  font-weight: 600;
}

.mail-item.unread::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--primary-color);
}

.mail-from {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
  font-size: 1.0625rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding-right: var(--spacing-xl);
}

.mail-subject {
  font-size: 0.9375rem;
  color: var(--text-primary);
  margin-bottom: 0.375rem;
  font-weight: 400;
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding-right: var(--spacing-xl);
}

.mail-meta {
  display: flex;
  gap: var(--spacing-sm);
  font-size: 0.875rem;
  color: var(--text-tertiary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding-right: var(--spacing-xl);
  line-height: 1.2;
  height: 1.05rem;
}

.mail-meta > div {
  display: inline;
}

.mail-meta > div:not(:last-child)::after {
  content: '•';
  margin-left: var(--spacing-sm);
}

.mail-date,
.mail-size,
.mail-attachments {
  display: inline;
  margin: 0;
  padding: 0;
  line-height: inherit;
  vertical-align: baseline;
}

/* Empty State - iOS stil */
.empty-state {
  text-align: center;
  padding: var(--spacing-xxl) var(--spacing-xl);
  color: var(--text-secondary);
}

.empty-autorefresh {
  margin-top: 1rem;
  color: var(--text-tertiary);
  font-size: 0.875rem;
}

.empty-icon {
  font-size: 5rem;
  margin-bottom: var(--spacing-lg);
  opacity: 0.6;
}

.empty-state h3 {
  font-size: 1.375rem;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
  font-weight: 600;
  letter-spacing: -0.5px;
}

.empty-state p {
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--text-secondary);
}

#empty-address {
  color: var(--primary-color);
  font-family: var(--font-mono);
  font-weight: 500;
}

/* Mail Content */
.mail-content {
  max-width: 800px;
  margin: 0 auto;
  padding-bottom: var(--spacing-xxl);
}

.mail-detail-header {
  padding-bottom: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.mail-detail-subject {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-lg);
  color: var(--text-primary);
  font-weight: 600;
  letter-spacing: -0.5px;
  line-height: 1.3;
}

.mail-detail-meta {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  color: var(--text-secondary);
  background: var(--surface-color);
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  font-size: 0.9375rem;
  border: 1px solid var(--separator-color);
}

.mail-detail-meta-row {
  display: flex;
  gap: var(--spacing-md);
}

.mail-detail-meta-label {
  font-weight: 500;
  min-width: 70px;
  color: var(--text-tertiary);
}

.mail-actions {
  margin-top: var(--spacing-lg);
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.mail-detail-body {
  background: var(--surface-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-xxl);
  white-space: pre-wrap;
  word-wrap: break-word;
  line-height: 1.5;
  font-family: var(--font-sans);
  color: var(--text-primary);
  font-size: 0.9375rem;
  border: 1px solid var(--separator-color);
}

.mail-detail-body iframe {
  width: 100%;
  min-height: 400px;
  border: 1px solid var(--separator-color);
  border-radius: var(--border-radius);
}

.mail-attachments {
  margin-bottom: var(--spacing-xl);
}

.mail-attachments h3 {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-md);
  font-weight: 600;
  letter-spacing: -0.3px;
  color: var(--text-primary);
}

.attachment-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-radius: var(--border-radius);
  overflow: hidden;
  border: 1px solid var(--separator-color);
}

.attachment-item {
  display: flex;
  flex-direction: row;
  align-items: center;
  background: var(--surface-color);
  border-bottom: 1px solid var(--separator-color);
  padding: var(--spacing-md);
  min-height: 64px;
  gap: var(--spacing-md);
}

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

.attachment-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.attachment-name {
  font-weight: 400;
  color: var(--text-primary);
  word-break: break-word;
  font-size: 0.9375rem;
  margin-bottom: 0.25rem;
}

.attachment-meta {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

.attachment-item .attachment-download {
  flex-shrink: 0;
  align-self: center;
  width: 40px;
  min-width: 40px;
  max-width: 40px;
  height: 40px;
  min-height: 40px;
}

/* Footer - Fixed bottom bar */
.footer {
  display: none;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .footer {
    background: rgba(20, 20, 22, 0.95);
  }
}

:root[data-theme="dark"] .footer {
  background: rgba(20, 20, 22, 0.95);
}

.footer-content {
  max-width: 680px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
  padding: 0 var(--spacing-lg);
  transition: max-width 0.2s ease;
}

.container:has(.section-mailbox:not(.hidden)) .footer-content,
.container:has(.section-mail:not(.hidden)) .footer-content {
  max-width: none;
}

@media (min-width: 768px) {
  .footer-content {
    max-width: none;
  }
}

.footer-left {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  text-align: left;
}

.footer-right {
  flex-shrink: 0;
}

.footer p {
  font-size: 0.75rem;
  line-height: 1.3;
  margin: 0;
}

.footer-small {
  display: none;
}

.footer-copyright {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  margin: 0;
}

.footer-links {
  font-size: 0.75rem;
}

.footer-links a {
  color: var(--primary-color);
  text-decoration: none;
  margin: 0 0.25rem;
}

.footer-links a:first-child {
  margin-left: 0;
}

.footer-links a:hover {
  text-decoration: underline;
}

.footer-links span {
  color: var(--text-tertiary);
  margin: 0 0.25rem;
}

/* Utility Classes */
.hidden {
  display: none !important;
}

/* Static Pages */
.static-page {
  max-width: 500px;
  margin: 0 auto;
  padding: var(--spacing-xxl) var(--spacing-lg);
}

.static-content {
  color: var(--text-secondary);
  line-height: 1.7;
  padding: var(--spacing-lg);
  background: var(--surface-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--separator-color);
  margin-top: var(--spacing-lg);
}

.static-content h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xl);
  letter-spacing: -0.5px;
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--separator-color);
}

.static-content h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: var(--spacing-xxl) 0 var(--spacing-md) 0;
}

.static-content p {
  margin-bottom: var(--spacing-lg);
}

.static-content ul,
.static-content ol {
  margin-bottom: var(--spacing-lg);
  padding-left: calc(var(--spacing-lg) + var(--spacing-sm));
}

.static-content li {
  margin-bottom: var(--spacing-sm);
  line-height: 1.6;
}

.static-content a {
  color: var(--primary-color);
  text-decoration: none;
}

.static-content a:hover {
  text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0;
  }
  
  .header {
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-lg) var(--spacing-md);
    margin-left: 0;
    margin-right: 0;
    margin-top: 0;
  }
  
  .logo {
    font-size: 1.75rem;
  }
  
  .section {
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-xl) var(--spacing-lg);
  }
  
  .section-input {
    max-width: 100%;
  }
  
  .section:first-child {
    border-top: initial;
  }
  
  .main {
    padding: var(--spacing-lg) var(--spacing-md);
  }
  
  .container {
    padding-top: 56px;
  }
  
  .input-group {
    padding: var(--spacing-sm);
  }
  
  .tagline {
    font-size: 0.9375rem;
  }
  
  .language-selector {
    position: static;
    margin-top: var(--spacing-md);
    display: flex;
    justify-content: center;
  }
  
  .language-select {
    width: auto;
    min-width: 75px;
    font-size: 0.75rem;
    padding: 0.25rem 1.5rem 0.25rem 0.5rem;
  }
  
  .footer-content {
    gap: var(--spacing-xs);
  }
  
  .footer-left {
    font-size: 0.6875rem;
  }
  
  .footer-copyright {
    font-size: 0.6875rem;
  }
  
  .footer-links {
    font-size: 0.6875rem;
  }
  
  .section h2 {
    font-size: 1.25rem;
  }
  
  .mailbox-header {
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-sm);
  }
  
  .btn-secondary {
    width: 100%;
  }
  
  .mail-item {
    padding: var(--spacing-md);
    min-height: 72px;
  }
  
  .mail-detail-subject {
    font-size: 1.25rem;
  }
  
  .mail-detail-body {
    padding: var(--spacing-md);
  }
  
  #current-mailbox {
    font-size: 1.25rem;
  }
  
  .mail-detail-subject {
    font-size: 1.5rem;
  }
  
  .mail-detail-meta-row {
    flex-direction: column;
    gap: 0.25rem;
  }
  
  .mail-detail-meta-label {
    min-width: auto;
  }
  
  .attachment-download {
    margin-left: 0;
    width: 100%;
  }
}

@media (max-width: 480px) {
  .logo {
    font-size: 1.75rem;
  }
  
  .mailbox-input,
  .domain {
    font-size: 0.9375rem;
  }
  
  .mailbox-input {
    padding: var(--spacing-xs) 0;
    min-width: 0;
  }
  
  .domain {
    padding-left: 2px;
    padding-right: 0;
  }
  
  .mail-subject {
    font-size: 1rem;
  }
  
  .mail-meta {
    font-size: 0.8125rem;
  }
}