.load-circle {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    border: 10px solid rgba(255, 255, 255, 0.5);
    border-top-color: rgba(255, 255, 255, 1);
    animation: rotate 1s linear infinite;
}

@keyframes rotate {
    to {
        transform: rotate(360deg);
    }
}

:root {
    --ompu-blue: #1a73e8;
    --ompu-blue-dark: #1765cc;
    --ompu-border: #dadce0;
    --ompu-text: #202124;
    --ompu-text-secondary: #5f6368;
    --ompu-surface: #ffffff;
    --ompu-surface-hover: #f1f3f4;
}

html, body {
    height: 100%;
}

body {
    background-color: #fff;
    color: var(--ompu-text);
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
}

.bi {
    vertical-align: -0.125em;
}

.ompu-shell {
    max-width: min(1800px, 96vw);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.ompu-main {
    display: flex;
    flex-direction: column;
}

.ompu-header {
    padding-block: 1rem;
    border-bottom: 1px solid var(--ompu-border);
}

.ompu-logo {
    font-size: 1.375rem;
    font-weight: 500;
    color: var(--ompu-text);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.ompu-logo .bi {
    color: var(--ompu-blue);
}

.ompu-nav a {
    color: var(--ompu-text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    margin-inline-start: 1.5rem;
}

.ompu-nav a:hover {
    color: var(--ompu-blue);
    text-decoration: underline;
}

.ompu-card {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    border: 1px solid var(--ompu-border);
    border-radius: 24px;
    overflow: hidden;
    background: var(--ompu-surface);
    box-shadow: 0 1px 2px rgba(60, 64, 67, 0.08);
}

.ompu-pane {
    flex: 1 1 380px;
    min-width: 280px;
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
}

.ompu-pane-editor {
    flex-grow: 1.4;
}

.ompu-pane + .ompu-pane {
    border-top: 1px solid var(--ompu-border);
}

@media (min-width: 700px) {
    .ompu-pane + .ompu-pane {
        border-top: none;
        border-inline-start: 1px solid var(--ompu-border);
    }

    .ompu-main {
        flex: 1 1 auto;
        min-height: 0;
    }

    .ompu-card {
        flex: 1 1 auto;
        min-height: 0;
    }

    .ompu-card {
        align-items: stretch;
    }

    .ompu-editor-wrap {
        flex: 1 1 auto;
        min-height: 0;
    }

    .ompu-editor-wrap .ompu-textarea {
        height: 100%;
    }
}

.ompu-textarea {
    width: 100%;
    min-height: min(65vh, 640px);
    resize: vertical;
    border: none;
    outline: none;
    box-shadow: none;
    padding: 0;
    font-size: 1.25rem;
    line-height: 1.5;
    color: var(--ompu-text);
    background: transparent;
}

.ompu-textarea:focus {
    border: none;
    box-shadow: none;
}

.ompu-display {
    flex: 1;
    overflow-x: auto;
}

.ompu-display svg {
    max-width: 100%;
}

.ompu-midi {
    margin-top: 1rem;
}

.ompu-toolbar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--ompu-border);
}

.ompu-icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    color: var(--ompu-text-secondary);
    text-decoration: none;
    font-size: 1.1rem;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.ompu-icon-btn:hover {
    background-color: var(--ompu-surface-hover);
    color: var(--ompu-blue);
}

.ompu-footer {
    padding-block: 1.5rem;
    color: var(--ompu-text-secondary);
    font-size: 0.85rem;
    border-top: 1px solid var(--ompu-border);
}

.ompu-toast {
    position: fixed;
    left: 50%;
    bottom: 2rem;
    transform: translate(-50%, 12px);
    background: var(--ompu-text);
    color: #fff;
    padding: 0.65rem 1.25rem;
    border-radius: 8px;
    font-size: 0.9rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 2000;
}

.ompu-toast--visible {
    opacity: 1;
    transform: translate(-50%, 0);
}

.ompu-page-title {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.ompu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.25rem;
}

.ompu-score-card {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--ompu-border);
    border-radius: 16px;
    overflow: hidden;
    background: var(--ompu-surface);
    transition: box-shadow 0.15s ease;
}

.ompu-score-card:hover {
    box-shadow: 0 1px 8px rgba(60, 64, 67, 0.15);
}

.ompu-score-thumb {
    padding: 1rem;
    min-height: 100px;
    border-bottom: 1px solid var(--ompu-border);
    overflow: hidden;
}

.ompu-score-thumb svg {
    max-width: 100%;
}

.ompu-score-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 1rem;
}

.ompu-score-text {
    margin: 0;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.85rem;
    color: var(--ompu-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ompu-score-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.ompu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    border: 1px solid var(--ompu-border);
    color: var(--ompu-blue);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: background-color 0.15s ease;
}

.ompu-btn:hover {
    background-color: var(--ompu-surface-hover);
}

.ompu-btn-icon {
    background: none;
    border: none;
    color: var(--ompu-text-secondary);
    font-size: 1rem;
    cursor: pointer;
}

.ompu-btn-icon:hover {
    color: var(--ompu-blue);
}

@media print {
    .ompu-header,
    .ompu-footer,
    .ompu-toast,
    .ompu-pane-editor,
    .ompu-midi,
    .ompu-toolbar {
        display: none;
    }

    .ompu-shell {
        display: block;
        max-width: none;
        min-height: 0;
    }

    .ompu-card {
        display: block;
        border: none;
        border-radius: 0;
        box-shadow: none;
    }

    .ompu-pane-preview {
        padding: 0;
    }

    .ompu-display {
        overflow: visible;
    }
}