/* CSS Custom Properties (Design Tokens) */
:root {
  /* Colors */
  --color-primary: #6366f1;
  --color-primary-hover: #5855eb;
  --color-background: #fafafa;
  --color-surface: #ffffff;
  --color-text-primary: #1f2937;
  --color-text-secondary: #6b7280;
  --color-border: #e5e7eb;
  --color-border-focus: #6366f1;
  --color-idea-bg: #f8fafc;
  --color-shadow: rgba(0, 0, 0, 0.1);

  /* Gradients */
  --gradient-background: linear-gradient(135deg, #abddff 0%, #d4eeff 100%);

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 var(--color-shadow);
  --shadow-md: 0 4px 6px -1px var(--color-shadow);
  --shadow-lg: 0 10px 15px -3px var(--color-shadow);

  /* Container */
  --container-max-width: 400px;
  --container-padding: var(--spacing-md);
}

/* CSS Reset and Base Styles */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
  /* Improve font rendering across browsers */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background: var(--gradient-background);
  min-height: 100vh;
  margin: 0;
  padding: var(--container-padding);
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

/* Mobile-First Container Layout */
.container {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: var(--container-max-width);
  padding: var(--spacing-xl);
  margin-top: var(--spacing-lg);
  /* Ensure container doesn't overflow on very small screens */
  min-width: 280px;
}

/* Header Styles */
header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

h1 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0;
}

/* Authentication Styles */
.auth-section {
  margin-bottom: var(--spacing-xl);
}

.user-selection {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
  background: var(--color-idea-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.user-selection h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  margin: 0 0 var(--spacing-md) 0;
}

.auth-description {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin: 0 0 var(--spacing-lg) 0;
  line-height: var(--line-height-normal);
}

.auth-options {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.auth-btn {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  font-family: var(--font-family);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

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

.auth-btn.primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  transform: translateY(-1px);
}

.auth-btn.secondary {
  background: var(--color-surface);
  color: var(--color-text-primary);
  border-color: var(--color-border);
}

.auth-btn.secondary:hover {
  background: var(--color-idea-bg);
  border-color: var(--color-primary);
  transform: translateY(-1px);
}

.email-auth {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
}

.auth-tabs {
  display: flex;
  margin-bottom: var(--spacing-lg);
  background: var(--color-idea-bg);
  border-radius: var(--radius-md);
  padding: var(--spacing-xs);
}

.tab-btn {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  font-family: var(--font-family);
  background: transparent;
  color: var(--color-text-secondary);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.tab-btn.active {
  background: var(--color-surface);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-sm);
}

.tab-btn:hover:not(.active) {
  color: var(--color-text-primary);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.auth-form input {
  padding: var(--spacing-md);
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text-primary);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  min-height: 44px;
  font-size: max(16px, var(--font-size-base));
}

.auth-form input:focus {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.auth-form input::placeholder {
  color: var(--color-text-secondary);
}

.nickname-field {
  transition: all 0.3s ease;
}

.nickname-field.hidden {
  display: none;
}

.auth-form button[type="submit"] {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  font-family: var(--font-family);
  color: white;
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.1s ease;
  min-height: 44px;
  font-size: max(16px, var(--font-size-base));
}

.auth-form button[type="submit"]:hover {
  background: var(--color-primary-hover);
}

.auth-form button[type="submit"]:active {
  transform: translateY(1px);
}

.auth-form button[type="submit"]:disabled {
  background: var(--color-text-secondary);
  cursor: not-allowed;
  transform: none;
}

.back-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  font-family: var(--font-family);
  color: var(--color-text-secondary);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.back-btn:hover {
  color: var(--color-text-primary);
  border-color: var(--color-primary);
  background: var(--color-idea-bg);
}

.user-info {
  background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 100%);
  border: 1px solid #10b981;
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.welcome-message {
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.user-actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.switch-btn,
.signout-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  font-family: var(--font-family);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 36px;
}

.switch-btn {
  background: var(--color-primary);
  color: white;
}

.switch-btn:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

.signout-btn {
  background: #ef4444;
  color: white;
}

.signout-btn:hover {
  background: #dc2626;
  transform: translateY(-1px);
}

.hidden {
  display: none !important;
}

.app-hidden {
  opacity: 0.3;
  pointer-events: none;
  user-select: none;
}

/* Form Styles */
#idea-form {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  /* Ensure form doesn't break on very small screens */
  flex-wrap: wrap;
}

#idea-input {
  flex: 1;
  padding: var(--spacing-md);
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text-primary);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  /* Touch-friendly minimum size */
  min-height: 44px;
  /* Prevent zoom on iOS */
  font-size: max(16px, var(--font-size-base));
  /* Ensure minimum width for very small screens */
  min-width: 0;
}

#idea-input:focus {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

#idea-input::placeholder {
  color: var(--color-text-secondary);
}

button[type="submit"] {
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  font-family: var(--font-family);
  color: white;
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.1s ease;
  white-space: nowrap;
  /* Touch-friendly minimum size */
  min-height: 44px;
  /* Prevent text from being too small on mobile */
  font-size: max(16px, var(--font-size-base));
  /* Ensure button doesn't shrink too much */
  flex-shrink: 0;
}

button[type="submit"]:hover {
  background: var(--color-primary-hover);
}

button[type="submit"]:active {
  transform: translateY(1px);
}

button[type="submit"]:disabled {
  background: var(--color-text-secondary);
  cursor: not-allowed;
  transform: none;
}

button[type="submit"]:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.3);
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
  button[type="submit"]:hover {
    background: var(--color-primary);
    transform: none;
  }

  .idea-item:hover {
    transform: none;
    box-shadow: var(--shadow-sm);
  }
}

/* Live Preview Styles */
.live-preview {
  margin-bottom: var(--spacing-xl);
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
}

.live-preview.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.live-preview.hidden {
  display: none;
}

.preview-content {
  background: var(--color-idea-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  position: relative;
  /* Add a subtle visual indicator that this is a preview */
  border-left: 4px solid var(--color-primary);
  background: linear-gradient(135deg, var(--color-idea-bg) 0%, #f0f4ff 100%);
}

.preview-text {
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
  word-wrap: break-word;
  min-height: 1.5em;
  /* Allow text to wrap and expand vertically */
  white-space: pre-wrap;
  line-height: var(--line-height-normal);
}

.preview-timestamp {
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
  font-style: italic;
  opacity: 0.8;
  /* Position it similar to real timestamps but with preview styling */
  margin-top: var(--spacing-xs);
}

/* Ideas List Styles */
#ideas-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

/* Animation Keyframes with vendor prefixes for older browsers */
@-webkit-keyframes slideInUp {
  from {
    opacity: 0;
    -webkit-transform: translateY(20px);
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    -webkit-transform: translateY(0);
    transform: translateY(0);
  }
}

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

.idea-item {
  background: var(--color-idea-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  -webkit-animation: slideInUp 0.3s ease-out;
  animation: slideInUp 0.3s ease-out;
  /* Improve text rendering */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.idea-item:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.idea-text {
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
  word-wrap: break-word;
}

.idea-timestamp {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-normal);
  margin-top: var(--spacing-xs);
  font-style: italic;
  /* Ensure timestamp text doesn't break awkwardly */
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  /* Add subtle styling for better readability */
  opacity: 0.8;
  transition: opacity 0.2s ease;
}

.idea-item:hover .idea-timestamp {
  opacity: 1;
}

/* Idea Actions (Edit/Delete buttons) */
.idea-actions {
  display: flex;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-sm);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.idea-item:hover .idea-actions {
  opacity: 1;
}

.idea-btn {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  font-family: var(--font-family);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
}

.idea-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

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

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

.delete-btn {
  color: #ef4444;
  border-color: #ef4444;
}

.delete-btn:hover {
  background: #ef4444;
  color: white;
}

.save-btn {
  color: #10b981;
  border-color: #10b981;
}

.save-btn:hover {
  background: #10b981;
  color: white;
}

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

.cancel-btn:hover {
  background: var(--color-text-secondary);
  color: white;
}

/* Edit mode styles */
.idea-item.editing {
  border-color: var(--color-primary);
  background: linear-gradient(135deg, var(--color-idea-bg) 0%, #f0f4ff 100%);
}

.idea-edit-input {
  width: 100%;
  padding: var(--spacing-sm);
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text-primary);
  resize: vertical;
  min-height: 44px;
  line-height: var(--line-height-normal);
}

.idea-edit-input:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Confirmation dialog styles */
.confirmation-dialog {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.confirmation-dialog.visible {
  opacity: 1;
}

.confirmation-content {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  max-width: 320px;
  width: 90%;
  box-shadow: var(--shadow-lg);
  transform: scale(0.9);
  transition: transform 0.3s ease;
}

.confirmation-dialog.visible .confirmation-content {
  transform: scale(1);
}

.confirmation-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
  text-align: center;
}

.confirmation-message {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  text-align: center;
  line-height: var(--line-height-normal);
}

.confirmation-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
}

.confirmation-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  font-family: var(--font-family);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 44px;
  min-width: 80px;
}

.confirm-delete {
  background: #ef4444;
  color: white;
}

.confirm-delete:hover {
  background: #dc2626;
  transform: translateY(-1px);
}

.confirm-cancel {
  background: var(--color-border);
  color: var(--color-text-primary);
}

.confirm-cancel:hover {
  background: var(--color-text-secondary);
  color: white;
  transform: translateY(-1px);
}

/* Fade out animation for deleted items */
@keyframes fadeOut {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-20px);
  }
}

.idea-item.deleting {
  animation: fadeOut 0.3s ease-out forwards;
}

/* Error dialog styles */
.error-dialog {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.error-dialog.visible {
  opacity: 1;
}

.error-content {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  max-width: 320px;
  width: 90%;
  box-shadow: var(--shadow-lg);
  transform: scale(0.9);
  transition: transform 0.3s ease;
  border-left: 4px solid #ef4444;
}

.error-dialog.visible .error-content {
  transform: scale(1);
}

.error-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: #ef4444;
  margin-bottom: var(--spacing-md);
  text-align: center;
}

.error-message {
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xl);
  text-align: center;
  line-height: var(--line-height-normal);
}

.error-actions {
  display: flex;
  justify-content: center;
}

.error-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  font-family: var(--font-family);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 44px;
  min-width: 80px;
}

.error-ok {
  background: #ef4444;
  color: white;
}

.error-ok:hover {
  background: #dc2626;
  transform: translateY(-1px);
}

/* Empty State with subtle animation */
.empty-state {
  text-align: center;
  padding: var(--spacing-2xl) var(--spacing-md);
  color: var(--color-text-secondary);
  font-style: italic;
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

.empty-state:hover {
  opacity: 1;
}

/* Loading state for form submission */
.form-loading {
  opacity: 0.7;
  pointer-events: none;
}

/* Success feedback animation */
@keyframes successPulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.02);
  }
  100% {
    transform: scale(1);
  }
}

.success-feedback {
  animation: successPulse 0.3s ease-out;
}

/* Responsive Design Breakpoints */

/* Very small screens (320px - 480px) */
@media (max-width: 480px) {
  :root {
    --container-padding: 0.75rem;
    --spacing-xl: 1.5rem;
  }

  body {
    padding: var(--container-padding);
  }

  .container {
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
  }

  h1 {
    font-size: var(--font-size-xl);
  }

  /* Stack form elements on very small screens if needed */
  #idea-form {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  #idea-input,
  button[type="submit"] {
    width: 100%;
  }
}

/* Small screens (481px - 767px) */
@media (min-width: 481px) and (max-width: 767px) {
  #idea-form {
    flex-direction: row;
    flex-wrap: nowrap;
  }
}

/* Tablet and Desktop (768px+) */
@media (min-width: 768px) {
  body {
    padding: var(--spacing-xl);
    align-items: center;
  }

  .container {
    margin-top: 0;
  }

  #idea-form {
    flex-direction: row;
    flex-wrap: nowrap;
  }
}

/* Large screens (1024px+) */
@media (min-width: 1024px) {
  body {
    padding: var(--spacing-2xl);
  }
}

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .idea-item {
    animation: none;
  }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  :root {
    --color-border: #000000;
    --color-text-secondary: #000000;
  }
}

/* Cross-browser compatibility improvements */

/* Firefox specific fixes */
@-moz-document url-prefix() {
  #idea-input {
    /* Fix Firefox input padding inconsistency */
    padding: calc(var(--spacing-md) - 1px) var(--spacing-md);
  }
}

/* Safari specific fixes */
@supports (-webkit-appearance: none) {
  #idea-input {
    /* Remove Safari's default styling */
    -webkit-appearance: none;
    appearance: none;
  }

  button[type="submit"] {
    -webkit-appearance: none;
    appearance: none;
  }
}

/* Edge/IE specific fixes */
@supports (-ms-ime-align: auto) {
  .container {
    /* Ensure proper flexbox behavior in older Edge */
    display: -ms-flexbox;
    display: flex;
    -ms-flex-direction: column;
    flex-direction: column;
  }
}

/* Print styles */
@media print {
  body {
    background: white;
    color: black;
  }

  .container {
    box-shadow: none;
    border: 1px solid #ccc;
  }

  button[type="submit"] {
    display: none;
  }

  .idea-item {
    break-inside: avoid;
    animation: none;
  }
}

/* Landscape orientation on mobile */
@media screen and (orientation: landscape) and (max-height: 500px) {
  body {
    align-items: flex-start;
    padding-top: var(--spacing-sm);
  }

  .container {
    margin-top: var(--spacing-sm);
  }

  header {
    margin-bottom: var(--spacing-lg);
  }
}