/* Shared styles for all tool pages */
:root {
    --tool-primary: #0066cc;
    --tool-success: #28a745;
    --tool-danger: #dc3545;
    --tool-warning: #ffc107;
    --tool-border: #ddd;
    --tool-bg: #f8f9fa;
    --tool-card-bg: #fff;
    --tool-text: #333;
    --tool-text-secondary: #666;
}

@media (prefers-color-scheme: dark) {
    :root {
        --tool-border: #444;
        --tool-bg: #0d0d0d;
        --tool-card-bg: #1a1a1a;
        --tool-text: #e0e0e0;
        --tool-text-secondary: #aaa;
    }
}

.tool-wrapper {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.tool-header {
    text-align: center;
    margin-bottom: 2rem;
}

.tool-header h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--tool-text);
}

.tool-description {
    color: var(--tool-text-secondary);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.tool-breadcrumb {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 0.9rem;
}

.tool-breadcrumb a {
    color: var(--tool-primary);
    text-decoration: none;
}

.tool-breadcrumb a:hover {
    text-decoration: underline;
}

.tool-content {
    background: var(--tool-card-bg);
    border: 2px solid var(--tool-border);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.drop-zone {
    border: 3px dashed var(--tool-border);
    border-radius: 12px;
    padding: 3rem 2rem;
    text-align: center;
    background: var(--tool-bg);
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
}

.drop-zone:hover,
.drop-zone.drag-over {
    border-color: var(--tool-primary);
    background: rgba(0, 102, 204, 0.05);
}

.drop-zone-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.drop-zone-text {
    font-size: 1.1rem;
    color: var(--tool-text);
    margin-bottom: 0.5rem;
}

.drop-zone-hint {
    font-size: 0.9rem;
    color: var(--tool-text-secondary);
}

.file-input {
    display: none;
}

.btn {
    padding: 0.75rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-primary {
    background: var(--tool-primary);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: #0052a3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

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

.btn-success:hover:not(:disabled) {
    background: #218838;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
}

.btn-secondary {
    background: var(--tool-border);
    color: var(--tool-text);
}

.btn-secondary:hover:not(:disabled) {
    background: #c0c0c0;
}

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

.btn-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

.file-list {
    margin-top: 2rem;
}

.file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    background: var(--tool-bg);
    border: 1px solid var(--tool-border);
    border-radius: 8px;
    margin-bottom: 0.5rem;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

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

.file-details {
    flex: 1;
}

.file-name {
    font-weight: 600;
    color: var(--tool-text);
    margin-bottom: 0.25rem;
}

.file-size {
    font-size: 0.85rem;
    color: var(--tool-text-secondary);
}

.file-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-icon {
    padding: 0.5rem;
    background: transparent;
    border: 1px solid var(--tool-border);
    border-radius: 6px;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all 0.2s;
}

.btn-icon:hover {
    background: var(--tool-bg);
    transform: scale(1.1);
}

.btn-icon.danger:hover {
    background: var(--tool-danger);
    color: white;
    border-color: var(--tool-danger);
}

.progress-container {
    margin-top: 2rem;
    display: none;
}

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

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--tool-bg);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-fill {
    height: 100%;
    background: var(--tool-primary);
    transition: width 0.3s;
    border-radius: 4px;
}

.progress-text {
    text-align: center;
    color: var(--tool-text-secondary);
    font-size: 0.9rem;
}

.alert {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    display: none;
}

.alert.show {
    display: block;
}

.alert-success {
    background: rgba(40, 167, 69, 0.1);
    border: 1px solid var(--tool-success);
    color: var(--tool-success);
}

.alert-danger {
    background: rgba(220, 53, 69, 0.1);
    border: 1px solid var(--tool-danger);
    color: var(--tool-danger);
}

.alert-warning {
    background: rgba(255, 193, 7, 0.1);
    border: 1px solid var(--tool-warning);
    color: #856404;
}

.feature-list {
    background: var(--tool-bg);
    border-radius: 8px;
    padding: 1.5rem;
    margin-top: 2rem;
}

.feature-list h3 {
    margin-top: 0;
    margin-bottom: 1rem;
    color: var(--tool-text);
}

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

.feature-list li {
    padding: 0.5rem 0;
    color: var(--tool-text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.feature-list li::before {
    content: "✓";
    color: var(--tool-success);
    font-weight: bold;
    font-size: 1.2rem;
}

.spinner {
    border: 3px solid var(--tool-bg);
    border-top: 3px solid var(--tool-primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive grid utilities */
.grid-2-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.grid-3-cols {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}

.flex-wrap {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .tool-wrapper {
        padding: 1rem 0.5rem;
    }

    .tool-content {
        padding: 1.5rem 1rem;
    }

    .drop-zone {
        padding: 2rem 1rem;
    }

    .file-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .file-actions {
        width: 100%;
        justify-content: flex-end;
    }

    .btn-group {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    /* Responsive grid utilities */
    .grid-2-cols,
    .grid-3-cols {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .tool-wrapper {
        padding: 0.75rem 0.25rem;
    }

    .tool-content {
        padding: 1rem 0.75rem;
    }

    .drop-zone {
        padding: 1.5rem 0.75rem;
    }

    .tool-header h1 {
        font-size: 1.5rem;
    }

    .tool-description {
        font-size: 1rem;
    }
}