.hkt-pdf-tool {
    --hkt-ink: #15171b;
    --hkt-muted: #70757d;
    --hkt-border: rgba(20, 25, 35, .10);
    --hkt-blue: #2563eb;
    --hkt-blue-dark: #1d4ed8;
    --hkt-bg: #ffffff;

    width: 100%;
    max-width: 920px;
    margin: 30px auto;
    padding: 28px;

    color: var(--hkt-ink);
    background:
        radial-gradient(circle at 100% 0%, rgba(37, 99, 235, .08), transparent 32%),
        linear-gradient(145deg, #ffffff, #f8fafc);

    border: 1px solid var(--hkt-border);
    border-radius: 24px;

    box-shadow:
        0 24px 70px rgba(15, 23, 42, .08),
        inset 0 1px 0 rgba(255,255,255,.9);

    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.hkt-pdf-tool * {
    box-sizing: border-box;
}

.hkt-pdf-tool__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 22px;
}

.hkt-pdf-tool__eyebrow {
    display: inline-block;
    margin-bottom: 8px;
    color: var(--hkt-blue);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.hkt-pdf-tool h2 {
    margin: 0 0 7px;
    color: var(--hkt-ink);
    font-size: clamp(25px, 4vw, 36px);
    line-height: 1.05;
    letter-spacing: -1.2px;
}

.hkt-pdf-tool__header p {
    max-width: 620px;
    margin: 0;
    color: var(--hkt-muted);
    font-size: 14px;
    line-height: 1.65;
}

.hkt-pdf-tool__badge {
    flex: 0 0 auto;
    padding: 7px 11px;
    border: 1px solid rgba(37,99,235,.14);
    border-radius: 999px;
    color: #1d4ed8;
    background: rgba(37,99,235,.07);
    font-size: 10px;
    font-weight: 800;
}

.hkt-pdf-tool__dropzone {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 230px;
    padding: 30px;
    border: 1.5px dashed rgba(37,99,235,.28);
    border-radius: 20px;
    background:
        linear-gradient(180deg, rgba(255,255,255,.9), rgba(248,250,255,.75));
    text-align: center;
    cursor: pointer;
    transition: .2s ease;
    outline: none;
}

.hkt-pdf-tool__dropzone:hover,
.hkt-pdf-tool__dropzone.is-dragging,
.hkt-pdf-tool__dropzone:focus-visible {
    border-color: rgba(37,99,235,.65);
    background: rgba(239,246,255,.8);
    transform: translateY(-1px);
}

.hkt-pdf-tool__dropzone input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.hkt-pdf-tool__upload-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
    border-radius: 16px;
    color: white;
    background: linear-gradient(145deg, #2563eb, #4f46e5);
    box-shadow: 0 12px 25px rgba(37,99,235,.22);
    font-size: 25px;
    font-weight: 400;
}

.hkt-pdf-tool__dropzone strong {
    color: var(--hkt-ink);
    font-size: 16px;
}

.hkt-pdf-tool__dropzone span {
    margin-top: 6px;
    color: var(--hkt-muted);
    font-size: 13px;
}

.hkt-pdf-tool__dropzone small {
    margin-top: 12px;
    color: #9aa0a8;
    font-size: 11px;
}

.hkt-pdf-tool__status {
    min-height: 20px;
    margin: 12px 2px 0;
    color: var(--hkt-muted);
    font-size: 12px;
    line-height: 1.5;
}

.hkt-pdf-tool__status.is-success {
    color: #15803d;
}

.hkt-pdf-tool__status.is-error {
    color: #b91c1c;
}

.hkt-pdf-tool__files {
    margin-top: 18px;
    padding: 16px;
    border: 1px solid var(--hkt-border);
    border-radius: 18px;
    background: rgba(255,255,255,.72);
}

.hkt-pdf-tool__files-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
}

.hkt-pdf-tool__files-head strong {
    font-size: 13px;
}

.hkt-pdf-tool__clear {
    border: 0;
    padding: 0;
    color: #dc2626;
    background: transparent;
    cursor: pointer;
    font-size: 11px;
    font-weight: 700;
}

.hkt-pdf-tool__list {
    display: grid;
    gap: 8px;
}

.hkt-pdf-tool__file {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
    padding: 10px;
    border: 1px solid rgba(20,25,35,.07);
    border-radius: 13px;
    background: #fff;
}

.hkt-pdf-tool__file-grip {
    color: #a0a5ad;
    font-size: 16px;
    letter-spacing: -4px;
}

.hkt-pdf-tool__file-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    flex: 0 0 38px;
    border-radius: 10px;
    color: #b91c1c;
    background: #fef2f2;
    font-size: 9px;
    font-weight: 900;
}

.hkt-pdf-tool__file-info {
    min-width: 0;
    flex: 1;
}

.hkt-pdf-tool__file-info strong,
.hkt-pdf-tool__file-info span {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.hkt-pdf-tool__file-info strong {
    color: #2b2f35;
    font-size: 12px;
}

.hkt-pdf-tool__file-info span {
    margin-top: 3px;
    color: #9aa0a8;
    font-size: 10px;
}

.hkt-pdf-tool__file-actions {
    display: flex;
    gap: 4px;
}

.hkt-pdf-tool__file-actions button {
    width: 28px;
    height: 28px;
    padding: 0;
    border: 1px solid rgba(20,25,35,.08);
    border-radius: 8px;
    color: #555b65;
    background: #fff;
    cursor: pointer;
    font-size: 12px;
}

.hkt-pdf-tool__file-actions button:hover:not(:disabled) {
    color: var(--hkt-blue);
    border-color: rgba(37,99,235,.2);
    background: #eff6ff;
}

.hkt-pdf-tool__file-actions button:disabled {
    opacity: .35;
    cursor: not-allowed;
}

.hkt-pdf-tool__actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 18px;
}

.hkt-pdf-tool__secondary,
.hkt-pdf-tool__primary {
    min-height: 44px;
    padding: 0 17px;
    border-radius: 11px;
    font-size: 12px;
    font-weight: 800;
    cursor: pointer;
    transition: .2s ease;
}

.hkt-pdf-tool__secondary {
    border: 1px solid rgba(20,25,35,.11);
    color: #3e444c;
    background: #fff;
}

.hkt-pdf-tool__primary {
    border: 1px solid transparent;
    color: #fff;
    background: linear-gradient(135deg, #2563eb, #4f46e5);
    box-shadow: 0 10px 22px rgba(37,99,235,.18);
}

.hkt-pdf-tool__secondary:hover:not(:disabled),
.hkt-pdf-tool__primary:hover:not(:disabled) {
    transform: translateY(-1px);
}

.hkt-pdf-tool__primary:disabled,
.hkt-pdf-tool__secondary:disabled {
    opacity: .5;
    cursor: not-allowed;
}

.hkt-pdf-tool__progress {
    margin-top: 18px;
}

.hkt-pdf-tool__progress-track {
    width: 100%;
    height: 7px;
    overflow: hidden;
    border-radius: 999px;
    background: #e8edf5;
}

.hkt-pdf-tool__progress-bar {
    width: 0;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #2563eb, #6366f1);
    transition: width .25s ease;
}

.hkt-pdf-tool__progress span {
    display: block;
    margin-top: 7px;
    color: #7b818a;
    font-size: 10px;
}

.hkt-pdf-tool__footer {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 22px;
    padding-top: 17px;
    border-top: 1px solid rgba(20,25,35,.07);
    color: #858b94;
    font-size: 10px;
    font-weight: 600;
}

@media (max-width: 650px) {
    .hkt-pdf-tool {
        padding: 18px;
        border-radius: 18px;
    }

    .hkt-pdf-tool__header {
        flex-direction: column;
        gap: 12px;
    }

    .hkt-pdf-tool__dropzone {
        min-height: 200px;
        padding: 22px;
    }

    .hkt-pdf-tool__file {
        align-items: flex-start;
    }

    .hkt-pdf-tool__file-actions {
        flex-wrap: wrap;
        justify-content: flex-end;
    }

    .hkt-pdf-tool__actions {
        flex-direction: column;
    }

    .hkt-pdf-tool__secondary,
    .hkt-pdf-tool__primary {
        width: 100%;
    }

    .hkt-pdf-tool__footer {
        flex-direction: column;
        gap: 7px;
    }
}