:root {
  --color-bg-primary: #fafafa;
  --color-bg-secondary: #f0f0f0;
  --color-bg-tertiary: #e8e8e8;
  --color-bg-card: #ffffff;
  --color-bg-card-hover: #ffffff;

  --color-accent-green: #10b981;
  --color-accent-red: #ef4444;

  --color-solid-primary: #1a1a1a;
  --color-solid-card: #ffffff;

  --color-text-primary: #1a1a1a;
  --color-text-secondary: #666666;
  --color-text-muted: #999999;

  --color-border: #e0e0e0;
  --color-border-hover: #1a1a1a;

  --font-display: 'Outfit', 'Noto Sans JP', sans-serif;
  --font-body: 'Noto Sans JP', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

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

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.8;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  overflow-x: hidden;
}

.background-effects {
  display: none;
}

.grid-pattern {
  display: none;
}

.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* ==================== Header ==================== */
.site-header {
  background-color: #1a1a1a;
  color: #ffffff;
  padding: 2.5rem 0;
  text-align: center;
  border-bottom: 1px solid #333;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.logo-link {
  text-decoration: none;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 500;
  color: #ffffff;
  letter-spacing: 2px;
}

.tagline {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  font-weight: 300;
}

/* ==================== Main Content ==================== */
.main-content {
  padding: var(--spacing-xl) 0 var(--spacing-2xl);
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xl);
  letter-spacing: 1px;
  position: relative;
  padding-bottom: 1rem;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 2px;
  background-color: #1a1a1a;
}


/* ==================== Project Cards ==================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
}

.project-card {
  background: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
  animation: fadeInUp 0.6s ease backwards;
  box-shadow: var(--shadow-sm);
}

.project-card-link {
  display: block;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
}

.project-card-link:focus-visible {
  outline: 2px solid #1a1a1a;
  outline-offset: 4px;
  border-radius: var(--radius-lg);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: #1a1a1a;
}

.project-card-content {
  position: relative;
  z-index: 1;
}

.project-icon {
  display: block;
  margin: 0 auto;
  font-size: 4rem;
  z-index: 0;
  transition: opacity var(--transition-base), transform var(--transition-base);
  pointer-events: none;
  line-height: 1;
  text-align: center;
}

.project-card:hover .project-icon {
  transform: scale(1.05);
}

.project-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-primary);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2px;
  margin-top: 1rem;
  text-align: center;
}

.project-title-en {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--color-text-muted);
  font-family: var(--font-display);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-description {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin-top: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  line-height: 1.7;
}

.project-status {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 500;
  background: #f0f0f0;
  color: #666;
  border: 1px solid #e0e0e0;
}

.project-status.active {
  background: rgba(16, 185, 129, 0.08);
  color: var(--color-accent-green);
  border-color: var(--color-accent-green);
}

/* ==================== Footer ==================== */
.site-footer {
  background-color: #1a1a1a;
  padding: var(--spacing-xl) 0;
  text-align: center;
  margin-top: var(--spacing-2xl);
}

.footer-logo {
  display: block;
  margin: 0 auto var(--spacing-sm);
  width: 160px;
  opacity: .7;
  transition: opacity var(--transition-base);
}

.footer-logo img {
  filter: brightness(0) invert(1);
}

.footer-logo:hover {
  opacity: 1;
}

.copyright {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.7rem;
}

.footer-link {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: #ffffff;
  text-decoration: underline;
}

/* フッターナビゲーション */
.footer-nav {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.8rem;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-nav a:hover {
  color: #ffffff;
}

/* ==================== Animations ==================== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ==================== Responsive ==================== */
@media (max-width: 768px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }

  .site-header {
    padding: var(--spacing-lg) 0;
  }

  .main-content {
    padding: var(--spacing-lg) 0;
  }

  .logo-text {
    font-size: 2rem;
  }
}

/* ==================== Animation Delays ==================== */
.projects-section:first-of-type .project-card:nth-child(1) { animation-delay: 0.05s; }
.projects-section:first-of-type .project-card:nth-child(2) { animation-delay: 0.1s; }
.projects-section:first-of-type .project-card:nth-child(3) { animation-delay: 0.15s; }
.projects-section:first-of-type .project-card:nth-child(4) { animation-delay: 0.2s; }
.projects-section:first-of-type .project-card:nth-child(5) { animation-delay: 0.25s; }
.projects-section:first-of-type .project-card:nth-child(6) { animation-delay: 0.3s; }
.projects-section:first-of-type .project-card:nth-child(7) { animation-delay: 0.35s; }
.projects-section:first-of-type .project-card:nth-child(8) { animation-delay: 0.4s; }

.projects-section:last-of-type .project-card:nth-child(1) { animation-delay: 0.05s; }
.projects-section:last-of-type .project-card:nth-child(2) { animation-delay: 0.1s; }
.projects-section:last-of-type .project-card:nth-child(3) { animation-delay: 0.15s; }

/* ==================== Input Section ==================== */
.input-section {
  background: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
  box-shadow: var(--shadow-sm);
}

.input-wrapper {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.url-input {
  flex: 1;
  padding: var(--spacing-md) var(--spacing-lg);
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--color-text-primary);
  background: #fafafa;
  border: 1px solid #e0e0e0;
  border-radius: var(--radius-md);
  outline: none;
  transition: var(--transition-base);
}

.url-input::placeholder {
  color: var(--color-text-muted);
}

.url-input:focus {
  border-color: #1a1a1a;
  background: #ffffff;
  box-shadow: none;
}

.input-hint {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* ==================== Buttons ==================== */
.btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
  background: var(--color-solid-primary);
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: var(--transition-base);
  white-space: nowrap;
  text-decoration: none;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* セカンダリボタン */
.btn-secondary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-primary);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: var(--transition-base);
  white-space: nowrap;
  text-decoration: none;
}

.btn-secondary:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary:active {
  transform: translateY(0);
}

.btn-secondary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn-icon {
  transition: transform var(--transition-fast);
  display: inline-flex;
  align-items: center;
}

.btn-primary:hover .btn-icon {
  transform: translateX(3px);
}

/* ==================== Progress Bar ==================== */
/* ローディング進捗バー（ツール共通） */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--color-solid-primary);
  border-radius: var(--radius-sm);
  transition: width var(--transition-base);
  width: 0%;
}

.progress-text {
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
}

/* ==================== Loading ==================== */
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-2xl);
}

.loading-state.hidden {
  display: none;
}

.loading-spinner {
  position: relative;
  width: 48px;
  height: 48px;
}

.spinner-ring {
  position: absolute;
  width: 100%;
  height: 100%;
  border: 2px solid transparent;
  border-radius: 50%;
  animation: spin 1.5s linear infinite;
}

.spinner-ring:nth-child(1) {
  border-top-color: #1a1a1a;
  animation-delay: 0s;
}

.spinner-ring:nth-child(2) {
  width: 70%;
  height: 70%;
  top: 15%;
  left: 15%;
  border-right-color: #666;
  animation-delay: -0.5s;
  animation-direction: reverse;
}

.spinner-ring:nth-child(3) {
  width: 40%;
  height: 40%;
  top: 30%;
  left: 30%;
  border-bottom-color: #999;
  animation-delay: -1s;
}

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

.loading-text {
  margin-top: var(--spacing-lg);
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* ==================== Error State ==================== */
.error-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-2xl);
  background: #ffffff;
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-2xl);
}

.error-state.hidden {
  display: none;
}

.error-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-accent-red);
}

.error-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--color-accent-red);
  margin-bottom: var(--spacing-sm);
}

.error-message {
  color: var(--color-text-secondary);
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.retry-btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: var(--font-display);
  font-weight: 500;
  color: #1a1a1a;
  background: transparent;
  border: 1px solid #1a1a1a;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-base);
}

.retry-btn:hover {
  background: #1a1a1a;
  color: #ffffff;
}

/* ==================== Results ==================== */
.results-section {
  animation: fadeIn 0.4s ease;
}

.results-section.hidden {
  display: none;
}

.summary-section {
  margin-bottom: var(--spacing-2xl);
}

.summary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.summary-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: var(--radius-lg);
  transition: var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.summary-card:hover {
  transform: translateY(-2px);
  border-color: #1a1a1a;
  box-shadow: var(--shadow-md);
}

.card-icon {
  font-size: 2rem;
  color: #1a1a1a;
  display: flex;
  align-items: center;
}

.card-content {
  display: flex;
  flex-direction: column;
}

.card-value {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.card-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ==================== Action Buttons ==================== */
.action-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-primary);
  background: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-base);
}

.action-btn:hover {
  border-color: #1a1a1a;
  background: #fafafa;
  transform: translateY(-1px);
}

.action-btn.primary {
  color: #ffffff;
  background: #1a1a1a;
  border-color: #1a1a1a;
}

.action-btn.primary:hover {
  background: #333333;
  box-shadow: var(--shadow-md);
}

.action-btn .btn-icon {
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
}

/* ==================== Preview Tabs ==================== */
.preview-section {
  margin-bottom: var(--spacing-2xl);
}

.preview-tabs {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-base);
}

.tab-btn:hover {
  color: var(--color-text-primary);
  border-color: #1a1a1a;
}

.tab-btn.active {
  color: #ffffff;
  background: #1a1a1a;
  border-color: #1a1a1a;
}

.tab-icon {
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
}

.preview-panel {
  display: none;
}

.preview-panel.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

.preview-container {
  background: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
}

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

/* ==================== Scrollbar ==================== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #f0f0f0;
}

::-webkit-scrollbar-thumb {
  background: #ccc;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #999;
}

/* ==================== Material Symbols ==================== */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 24;
  vertical-align: middle;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: inherit;
}

.project-icon .material-symbols-outlined {
  font-size: 4rem;
  font-variation-settings: 'FILL' 0, 'wght' 200, 'GRAD' 0, 'opsz' 48;
}

.card-icon .material-symbols-outlined {
  font-size: 2rem;
  font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 40;
}

.error-icon .material-symbols-outlined {
  font-size: 3rem;
  font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 48;
}

.title-icon .material-symbols-outlined {
  font-size: 1.5rem;
  font-variation-settings: 'FILL' 0, 'wght' 300, 'GRAD' 0, 'opsz' 24;
}

.tab-icon .material-symbols-outlined {
  font-size: 1.1rem;
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 20;
}

.btn-icon .material-symbols-outlined {
  font-size: 1.1rem;
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* ==================== Back Link ==================== */
.back-link-container {
  text-align: center;
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-xl);
}

.back-to-home {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: #ffffff;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition-base);
  padding: var(--spacing-xs) var(--spacing-lg);
  border-radius: var(--radius-full);
  background: var(--color-text-primary);
  border: 1px solid var(--color-text-primary);
  box-shadow: var(--shadow-sm);
}

.back-to-home:hover {
  color: #ffffff;
  background: var(--color-text-secondary);
  border-color: var(--color-text-secondary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ==================== Dark Header (tool pages) ==================== */
.header {
  background-color: #1a1a1a;
  color: #fff;
  padding: 2.5rem 1rem;
  text-align: center;
  border-bottom: 1px solid #333;
}

.header h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
  font-weight: 500;
  font-family: 'Outfit', 'Noto Sans JP', sans-serif;
  letter-spacing: 2px;
  line-height: 1.3;
}

.header h1 .subtitle {
  font-size: 0.5em;
  letter-spacing: 1.5px;
  display: block;
  margin-top: 0.5rem;
}

.header p {
  font-size: 0.9rem;
  opacity: 0.8;
  font-weight: 300;
  letter-spacing: 1px;
}

@media (min-width: 768px) {
  .header h1 {
    font-size: 3rem;
  }
}

/* ==================== Navigation ==================== */
.nav-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  padding: 0.75rem 1rem;
  background-color: #fff;
  border-bottom: 1px solid #e0e0e0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  gap: 0.5rem;
}

.nav-link {
  margin: 0 0.75rem;
  padding: 0.5rem 0;
  text-decoration: none;
  color: #1a1a1a;
  transition: all 0.3s ease;
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
}

.nav-link:hover {
  color: #666;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: #1a1a1a;
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

/* ==================== Category Section ==================== */
.category-section {
  margin-bottom: 4rem;
}

.category-title {
  font-size: 2rem;
  margin-bottom: 2rem;
  text-align: center;
  color: #1a1a1a;
  font-weight: 500;
  letter-spacing: 1.5px;
  position: relative;
  padding-bottom: 1rem;
}

.category-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 2px;
  background-color: #1a1a1a;
}

/* ==================== Code Block ==================== */
.code-block {
  background-color: #1a1a1a;
  padding: 1rem;
  padding-right: 3.5rem;
  border-radius: 6px;
  overflow-x: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  position: relative;
}

.code-block code {
  color: #f0f0f0;
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.6;
}

.copy-button {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background-color: rgba(255, 255, 255, 0.1);
  color: #f0f0f0;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: system-ui, -apple-system, sans-serif;
}

.copy-button:hover {
  background-color: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.3);
}

.copy-button.copied {
  background-color: rgba(16, 185, 129, 0.3);
  border-color: #10b981;
  color: #10b981;
}

/* ==================== Toolbar ==================== */
.toolbar {
  background-color: #fff;
  border-bottom: 1px solid #e0e0e0;
  padding: 0.875rem 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  justify-content: center;
}

.search-wrap {
  position: relative;
  flex: 1;
  min-width: 160px;
  max-width: 300px;
}

.search-input {
  width: 100%;
  padding: 0.5rem 1rem;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  font-size: 0.875rem;
  outline: none;
  transition: border-color 0.2s;
  font-family: 'Noto Sans JP', sans-serif;
  color: #1a1a1a;
  background: #fafafa;
}

.search-input:focus {
  border-color: #1a1a1a;
  background: #fff;
}

.favorites-filter-btn {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 0.875rem;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  background: #fff;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s;
  color: #888;
  font-family: 'Noto Sans JP', sans-serif;
  white-space: nowrap;
  flex-shrink: 0;
}

.favorites-filter-btn.active {
  background-color: #fff0f5;
  border-color: #f472b6;
  color: #db2777;
}

.favorite-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  color: #ddd;
  transition: all 0.2s;
  padding: 0;
  line-height: 1;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
}

.favorite-btn:hover {
  color: #f472b6;
  transform: scale(1.2);
}

.favorite-btn.is-favorite {
  color: #f472b6;
}

.no-results {
  grid-column: 1 / -1;
  text-align: center;
  padding: 3rem 1rem;
  color: #999;
  font-size: 0.9rem;
  display: none;
}

.no-results.visible {
  display: block;
}

/* ==================== Page Footer (dark) ==================== */
.footer {
  background-color: #1a1a1a;
  color: rgba(255, 255, 255, 0.6);
  text-align: center;
  padding: 2rem 1rem;
  margin-top: 4rem;
  font-size: 0.9rem;
}