.tool-page {
    min-height: 100vh;
    padding-top: 80px;
    padding-bottom: 100px;
}

.tool-container {
    max-width: var(--container-max, 1400px);
    margin: 0 auto;
    padding: var(--spacing-2xl, 2rem) var(--container-padding, 1rem);
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: var(--spacing-2xl, 2rem);
    align-items: start;
}

.tool-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg, 1.5rem);
    position: sticky;
    top: 100px;
}

.tool-card {
    background: var(--card-bg, #1f2937);
    border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
    border-radius: var(--radius-xl, 1rem);
    padding: var(--spacing-xl, 1.5rem);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.tool-card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md, 1rem);
    margin-bottom: var(--spacing-lg, 1.5rem);
    padding-bottom: var(--spacing-md, 1rem);
    border-bottom: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
}

.tool-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md, 0.5rem);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.tool-card-title h1 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-main, #fff);
    margin: 0;
}

.tool-card-title p {
    font-size: 0.875rem;
    color: var(--text-sub, rgba(255, 255, 255, 0.6));
    margin: 0;
}

.drop-zone {
    border: 2px dashed var(--border-color, rgba(255, 255, 255, 0.2));
    border-radius: var(--radius-lg, 0.75rem);
    padding: var(--spacing-2xl, 2rem) var(--spacing-lg, 1.5rem);
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.02);
    position: relative;
}

.drop-zone:hover {
    border-color: var(--primary-color, #8b5cf6);
    background: rgba(139, 92, 246, 0.05);
}

.drop-zone.drag-over {
    border-color: var(--cta-color, #22c55e);
    background: rgba(34, 197, 94, 0.1);
    transform: scale(1.02);
}

.drop-zone-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md, 1rem);
    opacity: 0.8;
}

.drop-zone-text h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-main, #fff);
    margin: 0 0 0.25rem;
}

.drop-zone-text p {
    font-size: 0.875rem;
    color: var(--text-sub, rgba(255, 255, 255, 0.6));
    margin: 0;
}

.drop-zone-formats {
    font-size: 0.75rem;
    color: var(--text-sub, rgba(255, 255, 255, 0.5));
    margin-top: var(--spacing-md, 1rem);
    padding-top: var(--spacing-sm, 0.5rem);
    border-top: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
}

.file-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.selected-file {
    display: none;
    align-items: center;
    gap: var(--spacing-md, 1rem);
    padding: var(--spacing-md, 1rem);
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    border-radius: var(--radius-md, 0.5rem);
}

.selected-file.active {
    display: flex;
}

.file-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm, 0.375rem);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

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

.file-name {
    font-weight: 500;
    color: var(--text-main, #fff);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.875rem;
}

.file-size {
    font-size: 0.75rem;
    color: var(--text-sub, rgba(255, 255, 255, 0.6));
}

.file-remove {
    background: none;
    border: none;
    color: var(--text-sub, rgba(255, 255, 255, 0.6));
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-sm, 0.375rem);
    transition: all 0.2s ease;
}

.file-remove:hover {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

.tool-controls {
    margin-top: var(--spacing-lg, 1.5rem);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md, 1rem);
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.control-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-sub, rgba(255, 255, 255, 0.8));
}

.control-input {
    width: 100%;
}

.range-slider {
    width: 100%;
    height: 6px;
    accent-color: var(--primary-color, #8b5cf6);
    cursor: pointer;
}

.action-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm, 0.5rem);
    margin-top: var(--spacing-lg, 1.5rem);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    border-radius: var(--radius-md, 0.5rem);
    font-weight: 500;
    font-size: 0.9375rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color, #8b5cf6), #7c3aed);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-main, #fff);
    border: 1px solid var(--border-color, rgba(255, 255, 255, 0.2));
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-cta {
    background: linear-gradient(135deg, var(--cta-color, #22c55e), #16a34a);
    color: white;
}

.btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(34, 197, 94, 0.4);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.w-full {
    width: 100%;
}

.progress-container {
    display: none;
    margin-top: var(--spacing-md, 1rem);
}

.progress-container.active {
    display: block;
}

.progress-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color, #8b5cf6), var(--cta-color, #22c55e));
    border-radius: 4px;
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    font-size: 0.75rem;
    color: var(--text-sub, rgba(255, 255, 255, 0.6));
    text-align: center;
}

.tool-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl, 1.5rem);
}

.output-area {
    background: var(--card-bg, #1f2937);
    border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
    border-radius: var(--radius-xl, 1rem);
    padding: var(--spacing-2xl, 2rem);
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.output-placeholder {
    text-align: center;
    color: var(--text-sub, rgba(255, 255, 255, 0.5));
}

.output-placeholder i {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg, 1.5rem);
    opacity: 0.5;
}

.output-placeholder h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-main, #fff);
    margin: 0 0 0.5rem;
}

.output-placeholder p {
    margin: 0;
    font-size: 0.875rem;
}

.card {
    background: var(--card-bg, #1f2937);
    border-radius: var(--radius-lg, 0.75rem);
    padding: var(--spacing-xl, 1.5rem);
}

.glass-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.image-preview-area {
    margin-top: 24px;
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--bg-dark, #111827);
    border-radius: 12px;
}

.image-preview-area.active {
    display: flex;
}

.preview-container {
    max-width: 100%;
    max-height: 400px;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    position: relative;

    background-image: linear-gradient(45deg, #2a2a2e 25%, transparent 25%),
        linear-gradient(-45deg, #2a2a2e 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #2a2a2e 75%),
        linear-gradient(-45deg, transparent 75%, #2a2a2e 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}

.preview-img {
    display: block;
    max-width: 100%;
    height: auto;
}

.comparison-view {
    display: flex;
    gap: 20px;
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
}

.comp-item {
    flex: 1;
    min-width: 250px;
    text-align: center;
}

.comp-label {
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--text-sub);
    font-weight: 500;
}

.seo-content {
    background: var(--card-bg, #1f2937);
    border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
    border-radius: var(--radius-xl, 1rem);
    padding: var(--spacing-2xl, 2rem);
}

.seo-content h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-main, #fff);
    margin: 0 0 1rem;
}

.seo-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-main, #fff);
    margin: 1.5rem 0 0.75rem;
}

.seo-content p {
    color: var(--text-sub, rgba(255, 255, 255, 0.7));
    line-height: 1.7;
    margin-bottom: 1rem;
}

.seo-content ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.seo-content ul li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
}

.seo-content ul li:last-child {
    border-bottom: none;
}

.seo-content a {
    color: var(--primary-color, #8b5cf6);
    text-decoration: none;
}

.seo-content a:hover {
    text-decoration: underline;
}

.features-list {
    display: grid;
    gap: var(--spacing-md, 1rem);
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md, 1rem);
    padding: var(--spacing-md, 1rem);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md, 0.5rem);
}

.feature-item i {
    color: var(--cta-color, #22c55e);
    font-size: 1rem;
    margin-top: 0.25rem;
}

.ad-slot {
    background: var(--card-bg, #1f2937);
    border: 1px dashed var(--border-color, rgba(255, 255, 255, 0.2));
    border-radius: var(--radius-lg, 0.75rem);
    min-height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-sub, rgba(255, 255, 255, 0.5));
    font-size: 0.875rem;
}

@media (max-width: 1023px) {
    .tool-container {
        grid-template-columns: 1fr;
        padding: var(--spacing-lg, 1.5rem);
    }

    .tool-sidebar {
        position: static;
        order: -1 !important;
        /* Upload dropzone shows first on mobile */
    }

    .tool-content {
        order: 2 !important;
        /* Output/preview area shows below upload */
    }

    .output-area {
        min-height: 300px;
    }


    .ad-sidebar-bottom {
        display: none;
    }
}

@media (max-width: 639px) {
    .tool-page {
        padding-bottom: 120px;
    }

    .tool-container {
        padding: var(--spacing-md, 1rem);
        gap: var(--spacing-md, 1rem);
    }

    .tool-card {
        padding: var(--spacing-lg, 1.5rem);
    }

    .tool-card-header {
        flex-direction: row;
        text-align: left;
    }

    .tool-icon {
        width: 42px;
        height: 42px;
        font-size: 1.1rem;
    }

    .tool-card-title h1 {
        font-size: 1.1rem;
    }

    .tool-card-title p {
        font-size: 0.8rem;
    }

    .drop-zone {
        padding: var(--spacing-lg, 1.5rem) var(--spacing-md, 1rem);
    }

    .drop-zone-icon {
        font-size: 2rem;
    }

    .drop-zone-text h3 {
        font-size: 1rem;
    }

    .output-area {
        padding: var(--spacing-md, 1rem);
        min-height: 200px;
    }

    .output-placeholder i {
        font-size: 2.5rem;
        margin-bottom: var(--spacing-md, 1rem);
    }

    .output-placeholder h3 {
        font-size: 1.1rem;
    }

    .output-placeholder p {
        font-size: 0.8rem;
    }

    .seo-content {
        padding: var(--spacing-lg, 1.5rem);
    }

    .seo-content h2 {
        font-size: 1.25rem;
    }

    .seo-content h3 {
        font-size: 1rem;
    }

    .comparison-view {
        flex-direction: column;
    }


    .ad-sidebar-top,
    .ad-sidebar-bottom {
        display: none;
    }


    .action-buttons {
        position: sticky;
        bottom: calc(70px + env(safe-area-inset-bottom));
        background: var(--card-bg, #1f2937);
        padding: var(--spacing-sm, 0.5rem) 0;
        z-index: 10;
    }


    .features-list {
        grid-template-columns: 1fr;
    }

    .feature-item {
        padding: var(--spacing-sm, 0.5rem);
    }


    .faq-section .faq-question {
        padding: var(--spacing-md, 1rem);
        font-size: 0.9rem;
    }

    .faq-answer-content {
        font-size: 0.85rem;
    }
}