/* ================================================
   COMPONENTS - MOMA + Universal Design
   コンポーネント - MOMAミニマリズム + ユニバーサルデザイン

   Created: 2025-10-31
   Design System: MOMA Minimalism + WCAG 2.1 AA

   Contents:
   1. Card Components
   2. Button Components
   3. Form Components
   4. Alert Components
   5. Utility Components (Copy Button, Share Buttons, etc.)
   ================================================ */

/* ========================================
   1. CARD COMPONENTS - MOMA Minimalist
   カードコンポーネント - MOMAミニマリスト
   ======================================== */

.card {
    background: var(--color-white);
    border: var(--border-width-thin) solid var(--border-color-light);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    margin-bottom: var(--space-6);

    /* Soft shadow for rounded design */
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base), transform var(--transition-base);
}

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

.card-elevated {
    /* Elevated shadow for important cards */
    box-shadow: var(--shadow-md);
}

.card-elevated:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.card-header {
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: var(--border-width-thin) solid var(--border-color-light);
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    color: var(--color-gray-900);
    margin: 0;

    /* MOMA: Left accent bar (managed by responsive.css) */
    position: relative;
}

.card-body {
    line-height: var(--line-height-relaxed);
}

/* Card body spacing */
.card-body > *:not(:last-child) {
    margin-bottom: var(--space-4);
}

.card-body p {
    margin-bottom: var(--space-4);
    line-height: var(--line-height-relaxed);
}

.card-body p:last-child {
    margin-bottom: 0;
}

.card-body h3 {
    margin-top: var(--space-6);
    margin-bottom: var(--space-3);
}

.card-body h3:first-child {
    margin-top: 0;
}

.card-body ul,
.card-body ol {
    margin: var(--space-4) 0;
    padding-left: var(--space-6);
}

.card-body li {
    margin-bottom: var(--space-2);
    line-height: var(--line-height-relaxed);
}

.card-footer {
    margin-top: var(--space-6);
    padding-top: var(--space-4);
    border-top: var(--border-width-thin) solid var(--border-color-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

/* ========================================
   2. BUTTON COMPONENTS - MOMA Minimalist
   ボタンコンポーネント - MOMAミニマリスト
   ======================================== */

.btn {
    /* Typography */
    font-family: inherit;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-normal);
    letter-spacing: var(--letter-spacing-wide);

    /* Layout */
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);

    /* Touch Target (Universal Design) */
    min-height: var(--touch-target-min);
    min-width: 64px;

    /* Appearance - Rounded Design */
    background: transparent;
    border: var(--border-width-thin) solid var(--color-gray-800);
    border-radius: var(--radius-lg);
    color: var(--color-gray-800);

    /* Interaction */
    cursor: pointer;
    user-select: none;
    text-decoration: none;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    transition: all var(--transition-base);
}

.btn:hover:not(:disabled):not([aria-disabled="true"]) {
    background: var(--color-gray-800);
    color: var(--color-white);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn:active:not(:disabled):not([aria-disabled="true"]) {
    transform: translateY(0);
}

/* Focus for keyboard navigation (WCAG) */
.btn:focus-visible {
    outline: var(--focus-outline-width) solid var(--focus-outline-color);
    outline-offset: var(--focus-outline-offset);
}

/* Button Variants */
.btn-primary {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--color-white);
}

.btn-primary:hover:not(:disabled):not([aria-disabled="true"]) {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    color: var(--color-white);
}

.btn-secondary {
    background: var(--color-gray-100);
    border-color: var(--border-color-base);
    color: var(--color-gray-800);
}

.btn-secondary:hover:not(:disabled):not([aria-disabled="true"]) {
    background: var(--color-gray-200);
    border-color: var(--border-color-dark);
    color: var(--color-gray-800);
}

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

.btn-success:hover:not(:disabled):not([aria-disabled="true"]) {
    background: var(--color-success-dark);
    border-color: var(--color-success-dark);
    color: var(--color-white);
}

.btn-danger {
    background: var(--color-error);
    border-color: var(--color-error);
    color: var(--color-white);
}

.btn-danger:hover:not(:disabled):not([aria-disabled="true"]) {
    background: var(--color-error-dark);
    border-color: var(--color-error-dark);
    color: var(--color-white);
}

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

.btn-info:hover:not(:disabled):not([aria-disabled="true"]) {
    background: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    color: var(--color-white);
}

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

.btn-warning:hover:not(:disabled):not([aria-disabled="true"]) {
    background: var(--color-warning-dark);
    border-color: var(--color-warning-dark);
    color: var(--color-white);
}

/* Ghost Button - MOMA Signature */
.btn-ghost {
    background: transparent;
    border: none;
    color: var(--color-gray-800);
    box-shadow: none;
}

.btn-ghost:hover:not(:disabled):not([aria-disabled="true"]) {
    background: var(--color-gray-100);
    color: var(--color-gray-900);
}

/* Outline Button */
.btn-outline {
    background: transparent;
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn-outline:hover:not(:disabled):not([aria-disabled="true"]) {
    background: var(--color-accent);
    color: var(--color-white);
}

/* Button Sizes */
.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    min-height: 36px;
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--font-size-lg);
    min-height: var(--touch-target-comfortable);
}

/* Full Width Button */
.btn-block {
    width: 100%;
}

/* Disabled State (WCAG) */
.btn:disabled,
.btn[aria-disabled="true"] {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* ========================================
   3. FORM COMPONENTS - Universal Design
   フォームコンポーネント - ユニバーサルデザイン
   ======================================== */

.form-group {
    margin-bottom: var(--space-6);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-800);
    margin-bottom: var(--space-2);
}

.form-label-required::after {
    content: ' *';
    color: var(--color-error);
}

.form-control,
.form-textarea,
.form-select {
    /* Typography */
    font-family: inherit;
    font-size: 16px;  /* iOS zoom prevention */
    line-height: var(--line-height-normal);
    color: var(--color-gray-900);

    /* Layout */
    display: block;
    width: 100%;
    padding: var(--space-3) var(--space-4);

    /* Touch Target */
    min-height: var(--touch-target-min);

    /* Appearance - MOMA Minimal */
    background: var(--color-white);
    border: var(--border-width-thin) solid var(--border-color-base);
    border-radius: var(--radius-lg);

    /* Interaction */
    transition: border-color var(--transition-base),
                box-shadow var(--transition-base);
}

.form-control:hover:not(:disabled):not(:focus),
.form-textarea:hover:not(:disabled):not(:focus),
.form-select:hover:not(:disabled):not(:focus) {
    border-color: var(--border-color-dark);
}

/* Focus State - WCAG Compliant */
.form-control:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: var(--shadow-focus);
}

/* Error State - WCAG */
.form-control[aria-invalid="true"],
.form-textarea[aria-invalid="true"],
.form-select[aria-invalid="true"] {
    border-color: var(--color-error);
}

/* Disabled State */
.form-control:disabled,
.form-textarea:disabled,
.form-select:disabled {
    background: var(--color-gray-100);
    color: var(--color-gray-500);
    cursor: not-allowed;
    opacity: 0.7;
}

/* Textarea Specific */
.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* Error Message */
.form-error {
    color: var(--color-error);
    font-size: var(--font-size-sm);
    margin-top: var(--space-1);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.form-error::before {
    content: '⚠';
    font-size: var(--font-size-base);
}

/* Help Text */
.form-help {
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
    margin-top: var(--space-1);
}

/* Textarea Wrapper with Clear Button */
.textarea-wrapper {
    position: relative;
}

.clear-btn {
    position: absolute;
    top: var(--space-2);
    right: var(--space-2);
    background: var(--color-gray-100);
    border: var(--border-width-thin) solid var(--border-color-base);
    border-radius: var(--radius-lg);
    color: var(--color-gray-600);
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);

    /* Touch Target */
    min-height: 32px;
}

.clear-btn:hover {
    background: var(--color-gray-200);
    color: var(--color-gray-800);
}

.clear-btn:focus-visible {
    outline: var(--focus-outline-width) solid var(--focus-outline-color);
    outline-offset: var(--focus-outline-offset);
}

/* Checkbox & Radio - Universal Design */
.form-checkbox,
.form-radio {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    min-height: var(--touch-target-min);
    cursor: pointer;
}

.form-checkbox input[type="checkbox"],
.form-radio input[type="radio"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--color-accent);
}

.form-checkbox input[type="checkbox"]:focus-visible,
.form-radio input[type="radio"]:focus-visible {
    outline: var(--focus-outline-width) solid var(--focus-outline-color);
    outline-offset: var(--focus-outline-offset);
}

/* ========================================
   4. ALERT COMPONENTS - MOMA Minimalist
   アラートコンポーネント - MOMAミニマリスト
   ======================================== */

.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border: var(--border-width-thin) solid;
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);

    /* Soft shadow for rounded design */
    box-shadow: var(--shadow-sm);

    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
}

.alert-icon {
    flex-shrink: 0;
    font-size: var(--font-size-xl);
}

.alert-content {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.alert-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-shrink: 0;
}

.alert-close {
    background: transparent;
    border: none;
    color: inherit;
    cursor: pointer;
    padding: var(--space-1);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);

    /* Touch Target */
    min-width: 32px;
    min-height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.alert-close:hover {
    background: rgba(0, 0, 0, 0.1);
}

.alert-close:focus-visible {
    outline: var(--focus-outline-width) solid currentColor;
    outline-offset: var(--focus-outline-offset);
}

/* Alert Variants - WCAG Compliant */
.alert-info {
    background: var(--color-info-bg);
    border-color: var(--color-accent);
    color: #004d99;
}

.alert-success {
    background: var(--color-success-bg);
    border-color: var(--color-success);
    color: #1b5e20;
}

.alert-warning {
    background: var(--color-warning-bg);
    border-color: var(--color-warning);
    color: #e65100;
}

.alert-danger {
    background: var(--color-error-bg);
    border-color: var(--color-error);
    color: #b71c1c;
}

/* ========================================
   5. UTILITY COMPONENTS
   ユーティリティコンポーネント
   ======================================== */

/* Copy Button */
.copy-btn {
    position: absolute;
    top: var(--space-2);
    right: var(--space-2);

    background: var(--color-white);
    border: var(--border-width-thin) solid var(--border-color-base);
    border-radius: var(--radius-lg);
    color: var(--color-gray-700);

    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);

    padding: var(--space-2) var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-1);

    min-height: 32px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.copy-btn:hover {
    background: var(--color-gray-100);
    border-color: var(--border-color-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

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

.copy-btn:focus-visible {
    outline: var(--focus-outline-width) solid var(--focus-outline-color);
    outline-offset: var(--focus-outline-offset);
}

.copy-btn.copied {
    background: var(--color-success);
    border-color: var(--color-success);
    color: var(--color-white);
}

/* Share Buttons - SNS Share */
.share-buttons,
.social-share {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin: var(--space-6) 0;
}

.share-button,
.sns-share-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    transition: all var(--transition-fast);

    /* Touch Target */
    min-height: 40px;
}

.share-button:hover,
.sns-share-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Twitter/X */
.share-button-twitter,
.sns-share-button-twitter {
    background: #1da1f2;
    color: white;
    border: 1px solid #1da1f2;
}

.share-button-twitter:hover,
.sns-share-button-twitter:hover {
    background: #0d8bd9;
}

/* Facebook */
.share-button-facebook,
.sns-share-button-facebook {
    background: #1877f2;
    color: white;
    border: 1px solid #1877f2;
}

.share-button-facebook:hover,
.sns-share-button-facebook:hover {
    background: #0c63d4;
}

/* LINE */
.share-button-line,
.sns-share-button-line {
    background: #00b900;
    color: white;
    border: 1px solid #00b900;
}

.share-button-line:hover,
.sns-share-button-line:hover {
    background: #009900;
}

/* Hatena */
.share-button-hatena,
.sns-share-button-hatena {
    background: #00a4de;
    color: white;
    border: 1px solid #00a4de;
}

.share-button-hatena:hover,
.sns-share-button-hatena:hover {
    background: #0088bb;
}

/* Toolbar */
.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--color-gray-50);
    border: var(--border-width-thin) solid var(--border-color-light);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
}

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    background: var(--color-gray-100);
    color: var(--color-gray-800);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
}

.badge-primary {
    background: var(--color-accent-alpha-10);
    color: var(--color-accent-dark);
}

.badge-success {
    background: var(--color-success-bg);
    color: var(--color-success-dark);
}

/* ========================================
   Force Light Mode Colors
   Disable dark mode to keep consistent design
   ======================================== */
@media (prefers-color-scheme: dark) {
    /* Override system dark mode - keep light colors */
    :root {
        color-scheme: light;
    }

    .btn-primary,
    .btn-secondary,
    .btn-success,
    .btn-danger,
    .btn-info {
        /* Force light mode appearance */
        color-scheme: light;
    }
}

/* ========================================
   Textarea with Character Counter Component
   テキストエリア文字カウンターコンポーネント
   ======================================== */

/* 1. Textarea Wrapper */
.textarea-wrapper {
    position: relative;
    width: 100%;
}

.textarea-wrapper .form-control {
    width: 100%;
    resize: vertical;
    padding-right: 60px; /* Space for buttons */
    padding-bottom: 32px; /* Space for counter */
    box-sizing: border-box;
}

/* 2. Character Counter */
.char-counter {
    position: absolute;
    bottom: 8px;
    right: 8px;
    font-size: 12px;
    color: #6b7280;
    background: rgba(255, 255, 255, 0.9);
    padding: 4px 8px;
    border-radius: 4px;
    pointer-events: none;
    user-select: none;
    font-family: 'Courier New', monospace;
    font-weight: 500;
    z-index: 3;
}

/* Color coding based on usage */
.char-counter.warning {
    color: #f59e0b;
    background: rgba(251, 191, 36, 0.1);
    border: 1px solid #fbbf24;
}

.char-counter.danger {
    color: #dc2626;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid #ef4444;
}

/* 3. Action Buttons (Copy / Clear) */
.textarea-wrapper .copy-btn,
.textarea-wrapper .clear-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 6px 12px;
    font-size: 13px;
    font-weight: 500;
    border: 1px solid #d1d5db;
    background: #fff !important;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    z-index: 5;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    color: #374151;
}

.textarea-wrapper .copy-btn:hover,
.textarea-wrapper .clear-btn:hover {
    background: #f9fafb !important;
    border-color: #0066cc;
    color: #0066cc !important;
    box-shadow: 0 2px 4px rgba(0, 102, 204, 0.1);
    transform: none;
}

.textarea-wrapper .copy-btn:active,
.textarea-wrapper .clear-btn:active {
    transform: scale(0.95);
}

/* Copy button success state */
.textarea-wrapper .copy-btn.copied {
    background: #10b981 !important;
    color: #fff !important;
    border-color: #10b981;
}

/* Clear button (X mark) */
.textarea-wrapper .clear-btn {
    font-size: 16px;
    font-weight: 700;
    line-height: 1;
    padding: 4px 8px;
    color: #6b7280;
}

.textarea-wrapper .clear-btn:hover {
    color: #dc2626 !important;
    border-color: #dc2626;
    background: #fef2f2 !important;
}

/* 4. Accessibility */
.textarea-wrapper .copy-btn:focus-visible,
.textarea-wrapper .clear-btn:focus-visible {
    outline: 3px solid #0066cc;
    outline-offset: 2px;
}

/* High contrast mode */
@media (prefers-contrast: high) {
    .textarea-wrapper .copy-btn,
    .textarea-wrapper .clear-btn {
        border-width: 2px;
    }

    .char-counter {
        border: 2px solid #6b7280;
        background: #fff;
    }
}

/* 5. Responsive - Mobile (768px) */
@media (max-width: 768px) {
    .textarea-wrapper .form-control {
        padding-right: 50px;
        padding-bottom: 28px;
    }

    .copy-btn,
    .clear-btn {
        padding: 5px 10px;
        font-size: 12px;
    }

    .clear-btn {
        font-size: 14px;
    }

    .char-counter {
        font-size: 11px;
        padding: 3px 6px;
    }
}

/* 6. Responsive - Small Mobile (480px) */
@media (max-width: 480px) {
    .textarea-wrapper .form-control {
        padding-right: 40px;
        padding-bottom: 26px;
    }

    .copy-btn,
    .clear-btn {
        padding: 4px 8px;
        font-size: 11px;
    }

    .clear-btn {
        font-size: 13px;
    }

    .char-counter {
        font-size: 10px;
        bottom: 6px;
        right: 6px;
    }
}

/* 7. Print Styles */
@media print {
    .copy-btn,
    .clear-btn,
    .char-counter {
        display: none;
    }

    .textarea-wrapper .form-control {
        padding-right: 8px;
        padding-bottom: 8px;
    }
}

/* 8. Dark Mode Override - Force Light Mode for Textarea Components */
@media (prefers-color-scheme: dark) {
    /* Override system dark mode - keep light theme for consistency */
    .textarea-wrapper {
        color-scheme: light;
    }

    /* Force light mode styles for buttons and counter */
    .char-counter {
        background: rgba(255, 255, 255, 0.9) !important;
        color: #6b7280 !important;
    }

    .textarea-wrapper .copy-btn,
    .textarea-wrapper .clear-btn {
        background: #fff !important;
        border-color: #d1d5db !important;
        color: #374151 !important;
    }

    .textarea-wrapper .copy-btn:hover,
    .textarea-wrapper .clear-btn:hover {
        background: #f9fafb !important;
        border-color: #0066cc !important;
        color: #0066cc !important;
    }
}
/**
 * Related Tools Grid Component
 *
 * 関連ツールセクションのグリッドレイアウト
 * 71ページ（91%）で使用される高頻度パターン
 */

/* ========================================
   Grid Container
   ======================================== */
.related-tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

/* ========================================
   Tool Card
   ======================================== */
.related-tool-card {
    padding: 16px;
    background: var(--color-white, #ffffff);
    border: 1px solid var(--gray-200, #e5e7eb);
    border-radius: 8px;
    transition: all 0.2s ease;
}

.related-tool-card:hover {
    border-color: var(--primary-color, #1988FF);
    box-shadow: 0 2px 8px rgba(25, 136, 255, 0.1);
    transform: translateY(-2px);
}

/* ========================================
   Tool Title & Link
   ======================================== */
.related-tool-card .tool-title {
    font-size: 1em;
    margin: 0 0 8px 0;
    font-weight: 600;
    color: var(--gray-900, #111827);
}

.related-tool-card .tool-link {
    color: var(--primary-color, #1988FF);
    text-decoration: none;
    transition: color 0.2s ease;
}

.related-tool-card .tool-link:hover {
    color: var(--primary-dark, #0066cc);
    text-decoration: underline;
}

.related-tool-card .tool-link:focus {
    outline: 2px solid var(--primary-color, #1988FF);
    outline-offset: 2px;
    border-radius: 2px;
}

/* ========================================
   Tool Description
   ======================================== */
.related-tool-card .tool-description {
    font-size: 0.9em;
    color: var(--gray-600, #4b5563);
    margin: 0;
    line-height: 1.5;
}

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

/* Mobile: 1 column */
@media (max-width: 640px) {
    .related-tools-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .related-tool-card {
        padding: 12px;
    }
}

/* Tablet: 2 columns */
@media (min-width: 641px) and (max-width: 1024px) {
    .related-tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Desktop: 3 columns */
@media (min-width: 1025px) {
    .related-tools-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

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

/* タッチターゲットサイズ（最小44x44px） */
@media (hover: none) and (pointer: coarse) {
    .related-tool-card .tool-link {
        display: inline-block;
        min-height: 44px;
        line-height: 44px;
    }
}

/* Reduced Motion対応 */
@media (prefers-reduced-motion: reduce) {
    .related-tool-card {
        transition: none;
    }

    .related-tool-card:hover {
        transform: none;
    }
}

/* High Contrast Mode対応 */
@media (prefers-contrast: high) {
    .related-tool-card {
        border-width: 2px;
    }

    .related-tool-card:hover {
        border-width: 3px;
    }
}

/* Dark Mode対応: 無効化（ダークモードでも白背景維持） */