/* ============================================
   SHADOWBAN CHECKER - Unified Styles
   ============================================ */

/* CSS Variables */
:root {
  /* Colors */
  --color-bg: #fafafa;
  --color-text-primary: #1a1a1a;
  --color-text-secondary: #555;
  --color-text-tertiary: #999;
  --color-text-quaternary: #666;
  --color-text-light: #bbb;
  --color-border: #ddd;
  --color-border-light: #e0e0e0;
  --color-focus: #333;
  --color-success: #4CAF50;
  --color-hover-bg: rgba(0, 0, 0, 0.02);
  --color-active-bg: rgba(0, 0, 0, 0.04);
  
  /* Spacing */
  --spacing-xs: 6px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 20px;
  --spacing-xl: 24px;
  --spacing-2xl: 40px;
  
  /* Font Sizes */
  --font-xs: 10px;
  --font-sm: 11px;
  --font-base: 13px;
  --font-md: 14px;
  --font-lg: 20px;
  --font-xl: 32px;
  --font-2xl: 36px;
  --font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Transitions */
  --transition-fast: 0.2s;
  --transition-base: 0.3s;
  
  /* Icon Sizes */
  --icon-sm: 14px;
  --icon-md: 18px;
  --icon-lg: 20px;
}

/* ============================================
   Reset & Base Styles
   ============================================ */

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

body {
  font-family: var(--font-family);
  background: var(--color-bg);
  color: var(--color-text-primary);
  padding: 48px 20px;
  max-width: 1000px;
  margin: 0 auto;
  line-height: 1.5;
}

/* ============================================
   Accessibility
   ============================================ */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

/* ============================================
   Header
   ============================================ */

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

.title {
  font-size: var(--font-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.title-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: inherit;
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.title-link:hover {
  opacity: 0.7;
}

.description {
  font-size: var(--font-base);
  color: var(--color-text-quaternary);
  line-height: 1.7;
}

/* ============================================
   Layout
   ============================================ */

.container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
}

@media (min-width: 768px) {
  .container {
    flex-direction: row;
    align-items: flex-start;
  }
  
  .section {
    flex: 1;
  }
}

.section {
  transition: opacity var(--transition-base);
}

.section.loading {
  opacity: 0.6;
  pointer-events: none;
}

.section-title {
  font-size: var(--font-md);
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.section-icon {
  width: var(--icon-md);
  height: var(--icon-md);
  flex-shrink: 0;
}

/* ============================================
   Search Container & Input
   ============================================ */

.search-container {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.search-container .input-wrapper {
  flex: 1;
  margin-bottom: 0;
}

.search-container input {
  margin-bottom: 0;
}

.input-wrapper {
  position: relative;
}

input {
  width: 100%;
  padding: 11px 32px 11px 13px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  font-size: var(--font-base);
  font-family: inherit;
  outline: none;
  transition: border-color var(--transition-fast);
  margin-bottom: var(--spacing-lg);
}

input:focus {
  border-color: var(--color-focus);
}

/* Input with @ prefix */
.input-prefix {
  position: absolute;
  left: 13px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-tertiary);
  font-size: var(--font-base);
  pointer-events: none;
  z-index: 1;
}

#usernameInput {
  padding-left: 28px;
}

/* Clear button */
.clear-btn {
  position: absolute;
  right: var(--spacing-sm);
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  opacity: 0;
  transition: opacity var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.input-wrapper:hover .clear-btn,
.clear-btn.visible {
  opacity: 0.4;
}

.clear-btn:hover,
.clear-btn:focus-visible {
  opacity: 0.8 !important;
}

.clear-icon {
  width: 16px;
  height: 16px;
  pointer-events: none;
}

/* ============================================
   Buttons
   ============================================ */

/* Search button */
.search-btn {
  padding: 11px 20px;
  background: #666;
  color: white;
  border: none;
  border-radius: 3px;
  font-size: var(--font-base);
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  white-space: nowrap;
  flex-shrink: 0;
}

.search-btn:hover {
  background: #777;
}

.search-btn:active {
  transform: translateY(1px);
}

.search-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.search-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* Post button */
.post-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  background: #666;
  color: white;
  border: none;
  border-radius: 3px;
  font-size: var(--font-sm);
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
  white-space: nowrap;
  flex-shrink: 0;
}

.post-btn:hover {
  background: #777;
}

.post-btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ============================================
   Display Area & Placeholders
   ============================================ */

.display-area {
  min-height: 200px;
  display: flex;
  align-items: flex-start;
  width: 100%;
  margin-top: var(--spacing-sm);
}

.display-area > * {
  width: 100%;
}

.placeholder,
.empty {
  font-size: var(--font-base);
  color: var(--color-text-light);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  justify-content: center;
  padding: var(--spacing-2xl) var(--spacing-lg);
  line-height: 1.6;
}

.placeholder svg,
.placeholder-icon {
  width: var(--icon-lg);
  height: var(--icon-lg);
  opacity: 0.3;
  flex-shrink: 0;
  margin-bottom: var(--spacing-sm);
}

/* Placeholder override for multi-line */
#resultArea .placeholder {
  flex-direction: column;
  line-height: 1.6;
  white-space: pre-line;
}

#resultArea .placeholder svg {
  margin-bottom: var(--spacing-sm);
}

/* ============================================
   Result Container & Profile Section
   ============================================ */

.result-container {
  width: 100%;
  font-size: var(--font-base);
}

.result-title {
  font-size: var(--font-md);
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

/* Profile section */
.profile-section {
  margin-bottom: var(--spacing-xl);
}

.profile-header {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  align-items: center;
}

.profile-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  flex-shrink: 0;
  border: 1px solid var(--color-border-light);
}

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

.profile-name {
  font-size: var(--font-md);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 2px;
  word-break: break-word;
  transition: opacity var(--transition-fast);
}

.profile-name:hover {
  opacity: 0.7;
}

.profile-username {
  font-size: var(--font-base);
  color: var(--color-text-tertiary);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.username-link {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.username-link:hover {
  color: var(--color-text-primary);
  text-decoration: underline;
}

/* Health badge */
.health-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--font-xs);
  padding: 2px 8px;
  border-radius: 12px;
  font-weight: 500;
  margin-left: var(--spacing-sm);
}

.health-badge.healthy {
  background: #e8f5e9;
  color: #2e7d32;
}

.health-badge.unhealthy {
  background: #ffebee;
  color: #c62828;
}

.health-badge.warning {
  background: #fff3e0;
  color: #ef6c00;
}

.blue-verified-icon {
  width: 18px;
  height: 18px;
  fill: #1d9bf0;
  flex-shrink: 0;
}

/* Bio */
.profile-bio {
  margin: var(--spacing-md) 0;
  background: #f8f9fa;
  border-radius: 3px;
  font-size: var(--font-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
}

/* Stats */
.profile-stats {
  display: flex;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.stat-value {
  font-size: var(--font-md);
  font-weight: 600;
  color: var(--color-text-primary);
}

.stat-label {
  font-size: var(--font-sm);
  color: var(--color-text-tertiary);
}

/* Meta info */
.profile-meta {
  font-size: var(--font-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-md);
}

.profile-meta-content {
  flex: 1;
}

.profile-meta-item {
  margin-bottom: 4px;
}

.profile-meta strong {
  color: var(--color-text-primary);
}

/* ============================================
   Ban Status Section
   ============================================ */

.ban-section {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-border-light);
}

.ban-title {
  font-size: var(--font-md);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
}

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

.ban-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--font-base);
  padding: var(--spacing-sm) 0;
}

.ban-label {
  color: var(--color-text-secondary);
}

.ban-value {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: var(--font-sm);
  font-weight: 500;
}

.ban-value.pass {
  color: #4CAF50;
}

.ban-value.fail {
  color: #f44336;
}

.ban-value.unknown {
  color: #757575;
}

.ban-icon {
  width: 16px;
  height: 16px;
}

/* ============================================
   Error Messages
   ============================================ */

.error-message {
  color: #c62828;
  text-align: center;
  font-size: var(--font-base);
  line-height: 1.6;
  padding: var(--spacing-lg);
}

/* ============================================
   Policy Pages
   ============================================ */

.policy-content {
  margin: 0 auto;
}

.policy-content h1 {
  font-size: var(--font-xl);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.last-updated {
  color: var(--color-text-tertiary);
  font-size: var(--font-sm);
  margin-bottom: var(--spacing-xl);
}

.policy-content section {
  margin-bottom: var(--spacing-xl);
}

.policy-content h2 {
  font-size: var(--font-lg);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-md);
  padding-top: var(--spacing-md);
}

.policy-content h3 {
  font-size: var(--font-md);
  font-weight: 600;
  color: var(--color-text-secondary);
  margin: var(--spacing-md) 0 var(--spacing-sm);
}

.policy-content p {
  font-size: var(--font-base);
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

.policy-content ul {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.policy-content li {
  font-size: var(--font-base);
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xs);
}

.policy-content a {
  color: #666;
  text-decoration: underline;
  transition: opacity var(--transition-fast);
}

.policy-content a:hover {
  opacity: 0.7;
}

/* ============================================
   Footer
   ============================================ */

.footer {
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-2xl);
  border-top: 1px solid var(--color-border-light);
}

.footer-links {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: var(--spacing-sm);
}

.footer-links:last-child {
  margin-bottom: 0;
}

.footer-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-text-tertiary);
  text-decoration: none;
  font-size: var(--font-base);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 8px;
  transition: all var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-text-primary);
  background-color: var(--color-hover-bg);
}

.footer-link:active {
  background-color: var(--color-active-bg);
}

.footer-link svg {
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.footer-link:hover svg {
  transform: translateY(-2px);
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 480px) {
  .profile-header {
    flex-direction: column;
    text-align: center;
  }
  
  .profile-stats {
    justify-content: center;
    gap: var(--spacing-md);
  }
  
  .stat-item {
    flex-direction: column;
    align-items: center;
    gap: 2px;
  }
  
  .search-container {
    flex-direction: column;
  }
  
  .search-btn {
    width: 100%;
  }
  
  .profile-meta {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .post-btn {
    width: 100%;
    justify-content: center;
  }
}

/* ============================================
   Reduced Motion
   ============================================ */

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