/* ── Image DPI Converter ── */
.dpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-bottom: 6px;
}

@media (max-width: 600px) {
    .dpi-grid { grid-template-columns: repeat(2, 1fr); }
}

.dpi-btn {
    border: 2px solid rgba(3,29,54,.12);
    border-radius: 12px;
    background: var(--secondary-color, #F8F8F8);
    padding: 14px 8px;
    cursor: pointer;
    text-align: center;
    transition: border-color .2s, background .2s;
}

.dpi-btn:hover { border-color: var(--accent-color, #0A49A6); }

.dpi-btn.active {
    border-color: var(--accent-color, #0A49A6);
    background: rgba(10,73,166,.06);
}

.dpi-val {
    display: block;
    font-size: 22px;
    font-weight: 700;
    color: var(--primary-color, #031D36);
}

.dpi-note {
    display: block;
    font-size: 11px;
    color: #6b7a8d;
    margin-top: 3px;
}

.dpi-info-bar {
    background: rgba(10,73,166,.06);
    border: 1px solid rgba(10,73,166,.15);
    border-radius: 10px;
    padding: 10px 14px;
    font-size: 13px;
    color: var(--primary-color, #031D36);
    margin-bottom: 4px;
}

/* Guide */
.dpi-guide { display: flex; flex-direction: column; gap: 14px; margin-bottom: 20px; }

.dpi-guide-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.dpi-badge {
    display: inline-block;
    background: rgba(3,29,54,.07);
    color: var(--primary-color, #031D36);
    border-radius: 8px;
    padding: 4px 10px;
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
    min-width: 56px;
    text-align: center;
    flex-shrink: 0;
    margin-top: 2px;
}

.dpi-badge-blue { background: rgba(10,73,166,.1); color: var(--accent-color, #0A49A6); }
.dpi-badge-dark { background: var(--primary-color, #031D36); color: #fff; }

.dpi-guide-item strong { display: block; font-size: 13px; color: var(--primary-color, #031D36); }
.dpi-guide-item p { font-size: 12px; color: #6b7a8d; margin: 2px 0 0; }