:root {
    --tool-bg: #f3f8ff;
    --tool-card: #ffffff;
    --tool-border: #d7e4f7;
    --tool-text: #10233f;
    --tool-muted: #58708f;
    --tool-primary: #0057d8;
    --tool-primary-dark: #0045ab;
    --tool-success: #0f9f6b;
    --tool-danger: #c43737;
    --tool-warning: #c78300;
}

.tool-page {
    background:
        radial-gradient(circle at 90% 0%, rgba(0, 87, 216, 0.10), transparent 38%),
        radial-gradient(circle at 0% 100%, rgba(15, 159, 107, 0.08), transparent 44%),
        var(--tool-bg);
    color: var(--tool-text);
    min-height: 100vh;
}

.tool-shell {
    max-width: 1080px;
    margin: 0 auto;
    padding: 2rem 1rem 4rem;
}

.tool-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.tool-header h1 {
    font-size: clamp(1.5rem, 3vw, 2.35rem);
    line-height: 1.15;
    font-weight: 700;
    margin: 0;
}

.tool-header p {
    color: var(--tool-muted);
    margin-top: 0.55rem;
}

.tool-badges {
    margin-top: 0.75rem;
    display: inline-flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tool-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    border-radius: 999px;
    font-size: 0.77rem;
    padding: 0.2rem 0.7rem;
    font-weight: 600;
    background: #e6efff;
    color: #244670;
}

.tool-badge.premium {
    display: none !important;
    background: #fff2cf;
    color: #8f5d00;
}

.tool-widget {
    background: var(--tool-card);
    border: 1px solid var(--tool-border);
    border-radius: 18px;
    box-shadow: 0 14px 50px rgba(16, 35, 63, 0.08);
    overflow: hidden;
}

.tool-step {
    padding: 1.25rem;
}

.tool-step-title {
    font-size: 1rem;
    font-weight: 650;
    margin: 0 0 0.9rem;
}

.tool-upload-zone {
    border: 2px dashed var(--tool-border);
    background: linear-gradient(140deg, rgba(0, 87, 216, 0.05), rgba(15, 159, 107, 0.03));
    border-radius: 16px;
    padding: 1.4rem;
    text-align: center;
    transition: border-color 0.2s ease, background 0.2s ease;
}

.tool-upload-zone.is-dragover {
    border-color: var(--tool-primary);
    background: linear-gradient(140deg, rgba(0, 87, 216, 0.11), rgba(15, 159, 107, 0.08));
}

.tool-upload-zone p {
    color: var(--tool-muted);
    margin: 0.55rem 0 0;
}

.tool-upload-meta {
    margin-top: 0.7rem;
    color: var(--tool-muted);
    font-size: 0.86rem;
}

.tool-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 1rem;
}

.tool-button {
    border: 1px solid transparent;
    border-radius: 10px;
    font-weight: 600;
    padding: 0.6rem 1rem;
    font-size: 0.93rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.tool-button:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.tool-button.primary {
    background: var(--tool-primary);
    color: #fff;
}

.tool-button.primary:hover {
    background: var(--tool-primary-dark);
}

.tool-button.secondary {
    background: #fff;
    color: #1e3e69;
    border-color: var(--tool-border);
}

.tool-button.link {
    background: transparent;
    color: var(--tool-primary);
    border-color: transparent;
    text-decoration: underline;
    padding-left: 0;
}

.tool-option-grid {
    display: grid;
    gap: 0.8rem;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.tool-field {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.tool-field label {
    font-size: 0.82rem;
    color: var(--tool-muted);
    font-weight: 600;
}

.tool-field input,
.tool-field select,
.tool-field textarea {
    width: 100%;
    border-radius: 10px;
    border: 1px solid var(--tool-border);
    background: #fff;
    color: var(--tool-text);
    padding: 0.55rem 0.68rem;
    font-size: 0.9rem;
}

.tool-field input[type='checkbox'] {
    width: auto;
    transform: scale(1.05);
}

.tool-field.checkbox {
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.65rem;
}

.tool-field small {
    color: var(--tool-muted);
    font-size: 0.76rem;
}

.tool-file-list {
    margin-top: 0.9rem;
    display: grid;
    gap: 0.55rem;
}

.tool-file-item {
    border: 1px solid var(--tool-border);
    border-radius: 10px;
    background: #f9fbff;
    padding: 0.55rem 0.65rem;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 0.55rem;
}

.tool-file-name {
    font-weight: 600;
    font-size: 0.87rem;
}

.tool-file-size {
    font-size: 0.75rem;
    color: var(--tool-muted);
}

.tool-file-controls {
    display: inline-flex;
    gap: 0.3rem;
    align-items: center;
}

.tool-file-handle {
    cursor: grab;
    padding: 0.2rem 0.35rem;
    border-radius: 6px;
    border: 1px dashed var(--tool-border);
    font-size: 0.75rem;
    color: var(--tool-muted);
    user-select: none;
}

.tool-icon-btn {
    border: 1px solid var(--tool-border);
    background: #fff;
    color: #244670;
    border-radius: 7px;
    padding: 0.2rem 0.45rem;
    font-size: 0.76rem;
    cursor: pointer;
}

.tool-progress-wrap {
    border: 1px solid var(--tool-border);
    border-radius: 12px;
    overflow: hidden;
    background: #edf3fc;
}

.tool-progress-bar {
    height: 14px;
    width: 0;
    background: linear-gradient(90deg, #0057d8, #1f8dff);
    transition: width 0.25s ease;
}

.tool-progress-text {
    margin-top: 0.6rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--tool-muted);
    font-size: 0.86rem;
}

.tool-result {
    border: 1px solid #bee8d8;
    border-radius: 12px;
    background: #f0fff8;
    padding: 1rem;
}

.tool-result h3 {
    margin: 0;
    color: #0c6846;
    font-size: 1rem;
}

.tool-result p {
    margin: 0.45rem 0 0;
    color: #215840;
}

.tool-download {
    margin-top: 0.7rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.tool-countdown {
    margin-top: 0.7rem;
    font-size: 0.84rem;
    color: var(--tool-muted);
}

.tool-paywall {
    display: none !important;
    border: 1px solid #ffd68e;
    background: #fff8e8;
    color: #6b4c06;
    border-radius: 12px;
    padding: 1rem;
    margin-top: 0.8rem;
}

.tool-paywall h3 {
    margin: 0;
    font-size: 1rem;
}

.tool-paywall ul {
    margin: 0.65rem 0;
    padding-left: 1rem;
}

.tool-paywall-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.tool-error {
    margin-top: 0.8rem;
    border: 1px solid #ffc5c5;
    background: #fff2f2;
    color: #8f2929;
    border-radius: 10px;
    padding: 0.65rem 0.8rem;
    font-size: 0.88rem;
}

.tool-ad-banner {
    display: none !important;
    margin: 1rem 1.25rem 1.2rem;
    border: 1px dashed #cfd9ea;
    border-radius: 12px;
    background: #f8fbff;
    padding: 0.7rem 0.8rem;
    color: #4d6380;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.7rem;
    flex-wrap: wrap;
}

.tool-ad-badge {
    display: inline-block;
    border-radius: 999px;
    background: #e6efff;
    color: #2c4a71;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.14rem 0.5rem;
}

.tool-ad-banner a {
    color: var(--tool-primary);
    font-weight: 600;
}

.tool-seo {
    margin-top: 1.4rem;
    border: 1px solid var(--tool-border);
    border-radius: 16px;
    padding: 1.1rem;
    background: rgba(255, 255, 255, 0.87);
    backdrop-filter: blur(4px);
}

.tool-seo h2 {
    margin: 0.8rem 0 0.45rem;
    font-size: 1.1rem;
}

.tool-seo h2:first-child {
    margin-top: 0;
}

.tool-seo p,
.tool-seo li {
    color: #2f4a67;
}

.tool-seo ol,
.tool-seo ul {
    margin: 0.35rem 0 0.8rem;
    padding-left: 1.15rem;
}

.tool-seo details {
    border: 1px solid var(--tool-border);
    border-radius: 10px;
    background: #fff;
    padding: 0.5rem 0.65rem;
    margin-top: 0.45rem;
}

.tool-seo summary {
    cursor: pointer;
    font-weight: 600;
}

.tool-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin-top: 0.55rem;
}

.tool-links a {
    border: 1px solid var(--tool-border);
    border-radius: 999px;
    background: #fff;
    color: #1d3e67;
    text-decoration: none;
    font-size: 0.86rem;
    padding: 0.3rem 0.75rem;
}

.tool-links a:hover {
    background: #eef5ff;
}

.tool-index-grid {
    display: grid;
    gap: 0.8rem;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
}

.tool-index-card {
    display: block;
    border: 1px solid var(--tool-border);
    border-radius: 14px;
    background: #fff;
    padding: 0.9rem;
    text-decoration: none;
    color: inherit;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.tool-index-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 26px rgba(16, 35, 63, 0.09);
}

.tool-index-card h3 {
    margin: 0;
    font-size: 1rem;
}

.tool-index-card p {
    margin: 0.35rem 0 0;
    font-size: 0.85rem;
    color: var(--tool-muted);
}

.tool-pricing-grid {
    display: grid;
    gap: 0.9rem;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.tool-price-card {
    border: 1px solid var(--tool-border);
    border-radius: 14px;
    background: #fff;
    padding: 1rem;
}

.tool-price-card h3 {
    margin: 0;
}

.tool-price {
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0.6rem 0;
}

.tool-price-card ul {
    margin: 0;
    padding-left: 1rem;
    color: #2f4a67;
}

@media (max-width: 768px) {
    .tool-step {
        padding: 0.95rem;
    }

    .tool-ad-banner {
        margin-left: 0.95rem;
        margin-right: 0.95rem;
    }
}