.code-viewer-root {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 2147483000;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

.code-viewer-toggle {
    position: fixed;
    top: 50%;
    right: 18px;
    transform: translateY(-50%);
    border: none;
    border-radius: 999px;
    padding: 14px 18px;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    color: #ffffff;
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    box-shadow: 0 16px 35px rgba(37, 99, 235, 0.28);
    cursor: pointer;
    pointer-events: auto;
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.code-viewer-toggle:hover {
    transform: translateY(calc(-50% - 2px));
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.35);
}

.code-viewer-toggle:focus-visible,
.code-viewer-close:focus-visible,
.code-viewer-copy:focus-visible,
.code-viewer-tab:focus-visible {
    outline: 3px solid rgba(147, 197, 253, 0.9);
    outline-offset: 2px;
}

.code-viewer-modal {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 28px;
    pointer-events: auto;
}

.code-viewer-modal.is-open {
    display: flex;
}

.code-viewer-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.72);
    backdrop-filter: blur(6px);
}

.code-viewer-panel {
    position: relative;
    width: min(1180px, 100%);
    height: min(86vh, 860px);
    background: #0f172a;
    color: #e2e8f0;
    border-radius: 18px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 28px 80px rgba(15, 23, 42, 0.45);
}

.code-viewer-header {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
    padding: 18px 22px;
    background: linear-gradient(135deg, #111827, #1e293b);
    border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}

.code-viewer-title-wrap {
    min-width: 0;
}

.code-viewer-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin: 0;
}

.code-viewer-subtitle {
    margin: 4px 0 0;
    color: #94a3b8;
    font-size: 0.88rem;
}

.code-viewer-actions {
    display: flex;
    gap: 10px;
    align-items: center;
}

.code-viewer-copy,
.code-viewer-close {
    border: 1px solid rgba(148, 163, 184, 0.25);
    background: rgba(30, 41, 59, 0.95);
    color: #f8fafc;
    border-radius: 10px;
    padding: 10px 14px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    transition: background 0.2s ease, border-color 0.2s ease;
}

.code-viewer-copy:hover,
.code-viewer-close:hover {
    background: rgba(51, 65, 85, 0.95);
    border-color: rgba(148, 163, 184, 0.45);
}

.code-viewer-tabs {
    display: flex;
    gap: 10px;
    padding: 14px 22px 0;
    background: #0f172a;
}

.code-viewer-tab {
    border: none;
    border-radius: 12px 12px 0 0;
    background: #1e293b;
    color: #cbd5e1;
    padding: 12px 18px;
    cursor: pointer;
    font-size: 0.92rem;
    font-weight: 700;
    transition: background 0.2s ease, color 0.2s ease;
}

.code-viewer-tab:hover {
    background: #334155;
    color: #ffffff;
}

.code-viewer-tab.is-active {
    background: #f8fafc;
    color: #0f172a;
}

.code-viewer-body {
    flex: 1;
    min-height: 0;
    padding: 0 22px 22px;
    background: #0f172a;
}

.code-viewer-view {
    display: none;
    height: 100%;
}

.code-viewer-view.is-active {
    display: block;
}

.code-viewer-single {
    height: 100%;
}

.code-viewer-split {
    height: 100%;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 16px;
}

.code-viewer-card {
    min-width: 0;
    height: 100%;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(148, 163, 184, 0.18);
    border-radius: 14px;
    overflow: hidden;
    background: #020617;
}

.code-viewer-card-title {
    padding: 12px 16px;
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #93c5fd;
    background: rgba(15, 23, 42, 0.98);
    border-bottom: 1px solid rgba(148, 163, 184, 0.18);
}

.code-viewer-pre {
    flex: 1;
    margin: 0;
    overflow: auto;
    padding: 16px 0;
    background: #020617;
    color: #e2e8f0;
    font-family: Consolas, "Courier New", monospace;
    font-size: 0.88rem;
    line-height: 1.55;
}

.code-viewer-lines {
    min-width: 100%;
}

.code-viewer-line {
    display: grid;
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 16px;
    padding: 0 16px;
    white-space: pre-wrap;
    word-break: break-word;
}

.code-viewer-line:hover {
    background: rgba(59, 130, 246, 0.08);
}

.code-viewer-line-number {
    color: #64748b;
    text-align: right;
    user-select: none;
}

.code-viewer-line-text {
    color: inherit;
}

.code-viewer-empty {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px;
    color: #94a3b8;
    text-align: center;
}

body.code-viewer-open {
    overflow: hidden;
}

@media (max-width: 900px) {
    .code-viewer-modal {
        padding: 16px;
    }

    .code-viewer-panel {
        height: min(90vh, 960px);
        border-radius: 16px;
    }

    .code-viewer-header {
        flex-direction: column;
        align-items: stretch;
    }

    .code-viewer-actions {
        justify-content: flex-end;
    }

    .code-viewer-split {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .code-viewer-toggle {
        right: 12px;
        padding: 12px 15px;
        font-size: 0.85rem;
    }

    .code-viewer-tabs {
        flex-wrap: wrap;
    }

    .code-viewer-tab {
        border-radius: 10px;
    }

    .code-viewer-line {
        grid-template-columns: 44px minmax(0, 1fr);
        gap: 12px;
        padding: 0 12px;
    }
}