/* Converter Tools Section Styles */

.tools-category {
    margin-bottom: 4rem;
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}

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

.category-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

[data-theme='dark'] .category-header {
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

.category-icon {
    font-size: 3rem;
    line-height: 1;
    flex-shrink: 0;
}

.category-info {
    flex: 1;
}

.category-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0 0 0.5rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-theme='dark'] .category-title {
    background: linear-gradient(135deg, #8b9aff 0%, #a17bc5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.category-description {
    font-size: 1rem;
    color: #6b7280;
    margin: 0;
    line-height: 1.5;
}

[data-theme='dark'] .category-description {
    color: #9ca3af;
}

/* Tool Icon Specific Colors */
.tools-category[data-category="converter"] .tool-icon {
    color: #8b5cf6;
}

.tools-category[data-category="converter"] .linear-card:hover .tool-icon {
    color: #7c3aed;
}

[data-theme='dark'] .tools-category[data-category="converter"] .tool-icon {
    color: #a78bfa;
}

[data-theme='dark'] .tools-category[data-category="converter"] .linear-card:hover .tool-icon {
    color: #c4b5fd;
}

/* Individual Converter Tool Colors */
.tools-category[data-category="converter"] .linear-card:nth-child(1) .tool-icon {
    color: #4F46E5; /* Indigo - Document */
}

.tools-category[data-category="converter"] .linear-card:nth-child(2) .tool-icon {
    color: #06B6D4; /* Cyan - Image */
}

.tools-category[data-category="converter"] .linear-card:nth-child(3) .tool-icon {
    color: #EC4899; /* Pink - Video */
}

.tools-category[data-category="converter"] .linear-card:nth-child(4) .tool-icon {
    color: #8B5CF6; /* Purple - Audio */
}

.tools-category[data-category="converter"] .linear-card:nth-child(5) .tool-icon {
    color: #F59E0B; /* Amber - Ebook */
}

/* Hover effects for individual cards */
.tools-category[data-category="converter"] .linear-card:nth-child(1):hover .tool-icon {
    color: #4338ca;
}

.tools-category[data-category="converter"] .linear-card:nth-child(2):hover .tool-icon {
    color: #0891b2;
}

.tools-category[data-category="converter"] .linear-card:nth-child(3):hover .tool-icon {
    color: #db2777;
}

.tools-category[data-category="converter"] .linear-card:nth-child(4):hover .tool-icon {
    color: #7c3aed;
}

.tools-category[data-category="converter"] .linear-card:nth-child(5):hover .tool-icon {
    color: #d97706;
}

/* Dark theme variations */
[data-theme='dark'] .tools-category[data-category="converter"] .linear-card:nth-child(1) .tool-icon {
    color: #6366f1;
}

[data-theme='dark'] .tools-category[data-category="converter"] .linear-card:nth-child(2) .tool-icon {
    color: #22d3ee;
}

[data-theme='dark'] .tools-category[data-category="converter"] .linear-card:nth-child(3) .tool-icon {
    color: #f472b6;
}

[data-theme='dark'] .tools-category[data-category="converter"] .linear-card:nth-child(4) .tool-icon {
    color: #a78bfa;
}

[data-theme='dark'] .tools-category[data-category="converter"] .linear-card:nth-child(5) .tool-icon {
    color: #fbbf24;
}

/* Responsive Design */
@media (max-width: 768px) {
    .category-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .category-icon {
        font-size: 2.5rem;
    }

    .category-title {
        font-size: 1.5rem;
    }

    .category-description {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .tools-category {
        margin-bottom: 3rem;
    }

    .category-header {
        padding-bottom: 1rem;
        margin-bottom: 1.5rem;
    }

    .category-icon {
        font-size: 2rem;
    }

    .category-title {
        font-size: 1.25rem;
    }

    .category-description {
        font-size: 0.85rem;
    }
}

/* ============================================
   Individual Converter Tool Pages Common Styles
   Based on newtil.com/image-resizer best practices
   ============================================ */

/* PDF Tool Container */
.pdf-tool-container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-8, 2rem) var(--spacing-4, 1rem);
}

/* Linear Card Styles */
.linear-card {
    background: var(--color-bg-primary, #ffffff);
    border: 1px solid var(--color-border, #e5e7eb);
    border-radius: var(--border-radius-xl, 16px);
    padding: var(--spacing-8, 2rem);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

[data-theme='dark'] .linear-card {
    background: var(--color-surface, #1f2937);
    border-color: var(--color-border, #4b5563);
}

.tool-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: var(--color-primary-50, #eef2ff);
    border-radius: var(--border-radius-lg, 12px);
    margin: 0 auto var(--spacing-4, 1rem);
    color: var(--color-primary-500, #6366f1);
}

[data-theme='dark'] .tool-icon {
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-primary-400, #818cf8);
}

.linear-card-title {
    font-size: var(--font-size-lg, 1.125rem);
    font-weight: var(--font-weight-bold, 700);
    color: var(--color-text-primary, #111827);
    margin: var(--spacing-4, 1rem) 0;
    text-align: center;
    line-height: 1.2;
}

[data-theme='dark'] .linear-card-title {
    color: var(--color-text-primary, #f9fafb);
}

.linear-card-description {
    font-size: var(--font-size-base, 1rem);
    color: var(--color-text-secondary, #6b7280);
    text-align: center;
    margin-bottom: var(--spacing-8, 2rem);
    line-height: 1.5;
}

[data-theme='dark'] .linear-card-description {
    color: var(--color-text-secondary, #d1d5db);
}

/* Form Styles */
.pdf-tool-form {
    width: 100%;
}

.form-group {
    margin-bottom: var(--spacing-6, 1.5rem);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-2, 0.5rem);
    font-weight: var(--font-weight-medium, 500);
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--color-text-primary, #111827);
}

[data-theme='dark'] .form-label {
    color: var(--color-text-primary, #f9fafb);
}

.form-help {
    display: block;
    margin-top: var(--spacing-1, 0.25rem);
    font-size: var(--font-size-xs, 0.75rem);
    color: var(--color-text-secondary, #6b7280);
}

[data-theme='dark'] .form-help {
    color: var(--color-text-secondary, #d1d5db);
}

.linear-input,
.linear-select {
    width: 100%;
    padding: var(--spacing-3, 0.75rem);
    border: 1px solid var(--color-neutral-300, #d1d5db);
    border-radius: var(--border-radius-md, 8px);
    font-size: var(--font-size-base, 1rem);
    color: var(--color-text-primary, #111827);
    background-color: var(--color-neutral-0, #ffffff);
    transition: all var(--transition-duration-fast, 0.15s) var(--transition-easing, ease);
}

.linear-input:focus,
.linear-select:focus {
    outline: none;
    border-color: var(--color-primary-500, #6366f1);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

[data-theme='dark'] .linear-input,
[data-theme='dark'] .linear-select {
    background-color: var(--color-surface, #1f2937);
    border-color: var(--color-border, #4b5563);
    color: var(--color-text-primary, #f9fafb);
}

/* Grid Layout */
.linear-grid {
    display: grid;
    gap: var(--spacing-4, 1rem);
}

.linear-grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

@media (max-width: 640px) {
    .linear-grid-cols-2 {
        grid-template-columns: 1fr;
    }
}

/* Selected File */
.selected-file {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-3, 0.75rem);
    background-color: var(--color-success-50, #f0fdf4);
    border: 1px solid var(--color-success-500, #22c55e);
    border-radius: var(--border-radius-md, 8px);
    margin-top: var(--spacing-2, 0.5rem);
}

[data-theme='dark'] .selected-file {
    background-color: rgba(34, 197, 94, 0.1);
    border-color: rgba(34, 197, 94, 0.3);
}

/* Form Actions */
.form-actions {
    display: flex;
    gap: var(--spacing-4, 1rem);
    justify-content: flex-end;
    margin-top: var(--spacing-8, 2rem);
}

@media (max-width: 640px) {
    .form-actions {
        flex-direction: column;
    }

    .form-actions .linear-button {
        width: 100%;
    }
}

/* Buttons */
.linear-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3, 0.75rem) var(--spacing-6, 1.5rem);
    border-radius: var(--border-radius-md, 8px);
    font-size: var(--font-size-base, 1rem);
    font-weight: var(--font-weight-medium, 500);
    text-decoration: none;
    transition: all var(--transition-duration-fast, 0.15s) ease;
    cursor: pointer;
    border: 1px solid transparent;
    min-height: 44px;
}

.linear-button-primary {
    background: linear-gradient(135deg, var(--color-primary-500, #6366f1), var(--color-primary-600, #4f46e5));
    color: #ffffff;
    border-color: var(--color-primary-600, #4f46e5);
}

.linear-button-primary:hover {
    background: linear-gradient(135deg, var(--color-primary-600, #4f46e5), var(--color-primary-700, #4338ca));
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

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

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

.linear-button-secondary {
    background: var(--color-neutral-100, #f3f4f6);
    color: var(--color-text-primary, #111827);
    border-color: var(--color-neutral-300, #d1d5db);
}

.linear-button-secondary:hover {
    background: var(--color-neutral-200, #e5e7eb);
    border-color: var(--color-neutral-400, #9ca3af);
}

[data-theme='dark'] .linear-button-secondary {
    background: var(--color-surface-hover, #374151);
    color: var(--color-text-primary, #f9fafb);
    border-color: var(--color-border, #4b5563);
}

[data-theme='dark'] .linear-button-secondary:hover {
    background: var(--color-surface, #1f2937);
    border-color: var(--color-border, #6b7280);
}

.linear-button-ghost {
    background: transparent;
    color: var(--color-text-secondary, #6b7280);
    border-color: var(--color-neutral-300, #d1d5db);
}

.linear-button-ghost:hover {
    background: var(--color-neutral-50, #f9fafb);
    color: var(--color-text-primary, #111827);
}

[data-theme='dark'] .linear-button-ghost {
    color: var(--color-text-secondary, #d1d5db);
    border-color: var(--color-border, #4b5563);
}

[data-theme='dark'] .linear-button-ghost:hover {
    background: var(--color-surface-hover, #374151);
    color: var(--color-text-primary, #f9fafb);
}

/* Loading Spinner */
.linear-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: linear-spin 0.6s linear infinite;
}

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

/* Feature Explanation Section */
.feature-explanation-section {
    background: linear-gradient(135deg, var(--color-slate-50, #f8fafc) 0%, var(--color-amber-50, #fffbeb) 100%);
    padding: 4rem 0;
    margin-top: 3rem;
}

[data-theme='dark'] .feature-explanation-section {
    background: linear-gradient(135deg, var(--color-slate-900, #0f172a) 0%, var(--color-amber-950, #451a03) 100%);
}

.feature-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.feature-intro {
    text-align: center;
    margin-bottom: 3rem;
}

.feature-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-slate-900, #0f172a);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

[data-theme='dark'] .feature-title {
    color: var(--color-slate-100, #f1f5f9);
}

.feature-description {
    font-size: 1.2rem;
    color: var(--color-slate-600, #475569);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

[data-theme='dark'] .feature-description {
    color: var(--color-slate-300, #cbd5e1);
}

.section-title {
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-slate-900, #0f172a);
    margin-bottom: 2rem;
    text-align: center;
}

[data-theme='dark'] .section-title {
    color: var(--color-slate-100, #f1f5f9);
}

/* Steps Grid */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.step-card {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.step-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

[data-theme='dark'] .step-card {
    background: var(--color-slate-800, #1e293b);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

.step-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: var(--color-amber-100, #fef3c7);
    border-radius: 50%;
    margin-bottom: 1.5rem;
    color: var(--color-amber-600, #d97706);
}

[data-theme='dark'] .step-icon {
    background: var(--color-amber-900, #78350f);
    color: var(--color-amber-400, #fbbf24);
}

.step-card h4 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-slate-900, #0f172a);
    margin-bottom: 1rem;
}

[data-theme='dark'] .step-card h4 {
    color: var(--color-slate-100, #f1f5f9);
}

.step-card p {
    color: var(--color-slate-600, #475569);
    line-height: 1.6;
}

[data-theme='dark'] .step-card p {
    color: var(--color-slate-300, #cbd5e1);
}

/* Advantages Grid */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 4rem;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    background: white;
    padding: 1.5rem;
    border-radius: 0.75rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

[data-theme='dark'] .advantage-item {
    background: var(--color-slate-800, #1e293b);
}

.advantage-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.advantage-content h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-slate-900, #0f172a);
    margin-bottom: 0.5rem;
}

[data-theme='dark'] .advantage-content h4 {
    color: var(--color-slate-100, #f1f5f9);
}

.advantage-content p {
    color: var(--color-slate-600, #475569);
    line-height: 1.5;
}

[data-theme='dark'] .advantage-content p {
    color: var(--color-slate-300, #cbd5e1);
}

/* Use Cases Grid */
.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 4rem;
}

.use-case-card {
    background: white;
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.use-case-card:hover {
    transform: translateY(-2px);
}

[data-theme='dark'] .use-case-card {
    background: var(--color-slate-800, #1e293b);
}

.use-case-card h4 {
    color: var(--color-slate-900, #0f172a);
    font-weight: 600;
    margin-bottom: 1rem;
}

[data-theme='dark'] .use-case-card h4 {
    color: var(--color-slate-100, #f1f5f9);
}

.use-case-card p {
    color: var(--color-slate-600, #475569);
    line-height: 1.5;
}

[data-theme='dark'] .use-case-card p {
    color: var(--color-slate-300, #cbd5e1);
}

/* Utility Classes */
.linear-text-center {
    text-align: center;
}

.linear-mb-4 {
    margin-bottom: var(--spacing-4, 1rem);
}

/* Error Box */
.linear-error-box {
    background-color: var(--color-error-50, #fef2f2);
    border: 1px solid var(--color-error-500, #ef4444);
    color: var(--color-error-600, #dc2626);
    padding: var(--spacing-4, 1rem);
    border-radius: var(--border-radius-md, 8px);
}

[data-theme='dark'] .linear-error-box {
    background-color: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--color-error-300, #fca5a5);
}

.linear-error-title {
    margin-top: 0;
    color: var(--color-error-700, #b91c1c);
}

[data-theme='dark'] .linear-error-title {
    color: var(--color-error-200, #fecaca);
}

/* Converter Tool Pages Responsive */
@media (max-width: 768px) {
    .pdf-tool-container {
        padding: var(--spacing-4, 1rem);
    }

    .linear-card {
        padding: var(--spacing-6, 1.5rem);
    }

    .linear-card-title {
        font-size: var(--font-size-base, 1rem);
    }

    .feature-content {
        padding: 0 1rem;
    }

    .feature-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .steps-grid,
    .advantages-grid,
    .use-cases-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .linear-card-title {
        font-size: var(--font-size-sm, 0.875rem);
    }

    .feature-title {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 1.25rem;
    }
}