@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  width: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #ffffff;
  color: #1a1a1a;
  overflow-x: hidden;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 2.5rem 0;
  text-align: center;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid #e5e5e5;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2rem;
}

.back-button,
.refresh-button {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: #f5f5f5;
  border: 2px solid #e5e5e5;
  color: #666666;
  transition: all 0.3s ease;
  text-decoration: none;
  cursor: pointer;
}

.back-button {
  left: 2rem;
}

.refresh-button {
  right: 2rem;
}

.back-button:hover,
.refresh-button:hover {
  background: #1a1a1a;
  border-color: #1a1a1a;
  color: white;
}

.back-button:hover {
  transform: translateX(-4px);
}

.refresh-button:hover svg {
  animation: rotate 0.6s ease-in-out;
}

@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.logo {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #1a1a1a;
  margin: 0;
}

.mail-main {
  padding-top: 140px;
  padding-bottom: 3rem;
  min-height: 100vh;
}

.mail-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.mail-section {
  background: white;
  border-radius: 16px;
  border: 2px solid #e5e5e5;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
  overflow: hidden;
}

.email-header {
  padding: 2rem;
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
  border-bottom: 2px solid #e5e5e5;
}

.email-display {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.email-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: white;
  border-radius: 12px;
  border: 2px solid #e5e5e5;
  color: #1a1a1a;
  flex-shrink: 0;
}

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

.email-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: #666666;
  margin-bottom: 0.25rem;
}

.email-address {
  font-size: 1.25rem;
  font-weight: 600;
  color: #1a1a1a;
  word-break: break-all;
}

.copy-button,
.new-email-button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: white;
  border: 2px solid #e5e5e5;
  color: #666666;
  cursor: pointer;
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.copy-button:hover,
.new-email-button:hover {
  background: #1a1a1a;
  border-color: #1a1a1a;
  color: white;
  transform: translateY(-2px);
}

.inbox-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid #e5e5e5;
}

.section-title {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
  color: #1a1a1a;
  margin: 0;
}

.inbox-count {
  font-size: 0.875rem;
  font-weight: 600;
  color: #666666;
  padding: 0.5rem 1rem;
  background: #f8f8f8;
  border-radius: 20px;
}

.mail-list {
  min-height: 400px;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  color: #999999;
}

.empty-state svg {
  margin-bottom: 1.5rem;
  opacity: 0.4;
}

.empty-state p {
  font-size: 1.125rem;
  font-weight: 600;
  color: #666666;
  margin-bottom: 0.5rem;
}

.empty-state span {
  font-size: 0.875rem;
}

.mail-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid #e5e5e5;
  cursor: pointer;
  transition: all 0.2s ease;
}

.mail-item:hover {
  background: #f8f8f8;
}

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

.mail-item.unread {
  background: #f8f9fa;
}

.mail-item.unread .mail-subject {
  font-weight: 700;
}

.mail-avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 10px;
  color: white;
  font-weight: 600;
  font-size: 1.125rem;
  flex-shrink: 0;
}

.mail-content {
  flex: 1;
  min-width: 0;
}

.mail-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.25rem;
}

.mail-from {
  font-weight: 600;
  color: #1a1a1a;
  font-size: 0.9375rem;
}

.mail-time {
  font-size: 0.8125rem;
  color: #999999;
  flex-shrink: 0;
  margin-left: 1rem;
}

.mail-subject {
  font-size: 0.9375rem;
  color: #1a1a1a;
  margin-bottom: 0.25rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mail-preview {
  font-size: 0.875rem;
  color: #999999;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 1000;
  padding: 2rem;
  overflow-y: auto;
}

.modal.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background: white;
  border-radius: 16px;
  max-width: 800px;
  width: 100%;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2rem;
  border-bottom: 2px solid #e5e5e5;
}

.modal-header h3 {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-size: 1.5rem;
  font-weight: 600;
  color: #1a1a1a;
  margin: 0;
  flex: 1;
  padding-right: 1rem;
}

.modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: #f5f5f5;
  border: none;
  color: #666666;
  cursor: pointer;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.modal-close:hover {
  background: #1a1a1a;
  color: white;
}

.modal-meta {
  padding: 1.5rem 2rem;
  background: #f8f9fa;
  border-bottom: 1px solid #e5e5e5;
}

.meta-item {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.meta-item:last-child {
  margin-bottom: 0;
}

.meta-label {
  font-weight: 600;
  color: #666666;
  min-width: 80px;
}

.meta-value {
  color: #1a1a1a;
  word-break: break-all;
}

.modal-body {
  padding: 2rem;
  overflow-y: auto;
  flex: 1;
  line-height: 1.6;
  color: #1a1a1a;
}

@media (max-width: 768px) {
  .header {
    padding: 2rem 1rem;
  }

  .back-button,
  .refresh-button {
    width: 44px;
    height: 44px;
  }

  .back-button {
    left: 1rem;
  }

  .refresh-button {
    right: 1rem;
  }

  .logo {
    font-size: 1.5rem;
  }

  .mail-main {
    padding-top: 120px;
  }

  .mail-container {
    padding: 0 1rem;
  }

  .email-header {
    padding: 1.5rem;
  }

  .email-display {
    flex-wrap: wrap;
  }

  .email-icon {
    width: 48px;
    height: 48px;
  }

  .email-address {
    font-size: 1rem;
  }

  .inbox-header {
    padding: 1rem 1.5rem;
  }

  .mail-item {
    padding: 1rem 1.5rem;
  }

  .mail-avatar {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }

  .modal {
    padding: 1rem;
  }

  .modal-header {
    padding: 1.5rem;
  }

  .modal-header h3 {
    font-size: 1.25rem;
  }

  .modal-meta {
    padding: 1rem 1.5rem;
  }

  .modal-body {
    padding: 1.5rem;
  }
}

@media (prefers-color-scheme: dark) {
  body {
    background: #0a0a0a;
    color: #f5f5f5;
  }

  .header {
    background: rgba(10, 10, 10, 0.95);
    border-bottom-color: #2a2a2a;
  }

  .logo {
    color: #f5f5f5;
  }

  .back-button,
  .refresh-button {
    background: #1a1a1a;
    border-color: #2a2a2a;
    color: #999999;
  }

  .back-button:hover,
  .refresh-button:hover {
    background: #f5f5f5;
    border-color: #f5f5f5;
    color: #0a0a0a;
  }

  .mail-section {
    background: #1a1a1a;
    border-color: #2a2a2a;
  }

  .email-header {
    background: linear-gradient(135deg, #1a1a1a 0%, #0f0f0f 100%);
    border-bottom-color: #2a2a2a;
  }

  .email-icon {
    background: #0a0a0a;
    border-color: #2a2a2a;
    color: #f5f5f5;
  }

  .email-label {
    color: #999999;
  }

  .email-address {
    color: #f5f5f5;
  }

  .copy-button,
  .new-email-button {
    background: #0a0a0a;
    border-color: #2a2a2a;
    color: #999999;
  }

  .copy-button:hover,
  .new-email-button:hover {
    background: #f5f5f5;
    border-color: #f5f5f5;
    color: #0a0a0a;
  }

  .inbox-header {
    border-bottom-color: #2a2a2a;
  }

  .section-title {
    color: #f5f5f5;
  }

  .inbox-count {
    background: #0a0a0a;
    color: #999999;
  }

  .empty-state p {
    color: #999999;
  }

  .mail-item {
    border-bottom-color: #2a2a2a;
  }

  .mail-item:hover {
    background: #0f0f0f;
  }

  .mail-item.unread {
    background: #1f1f1f;
  }

  .mail-from,
  .mail-subject {
    color: #f5f5f5;
  }

  .modal {
    background: rgba(0, 0, 0, 0.8);
  }

  .modal-content {
    background: #1a1a1a;
  }

  .modal-header {
    border-bottom-color: #2a2a2a;
  }

  .modal-header h3 {
    color: #f5f5f5;
  }

  .modal-close {
    background: #0a0a0a;
    color: #999999;
  }

  .modal-close:hover {
    background: #f5f5f5;
    color: #0a0a0a;
  }

  .modal-meta {
    background: #0f0f0f;
    border-bottom-color: #2a2a2a;
  }

  .meta-label {
    color: #999999;
  }

  .meta-value {
    color: #f5f5f5;
  }

  .modal-body {
    color: #f5f5f5;
  }
}