* { margin: 0; padding: 0; box-sizing: border-box; }

/* Атрибут hidden всегда скрывает элемент, даже если задан display через класс */
[hidden] { display: none !important; }

body {
    font-family: 'Inter', sans-serif;
    background: #0b0f15;
    color: #e6edf3;
    padding: 2rem 1.5rem;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.container {
    max-width: 1200px;
    width: 100%;
    background: #161b22;
    border-radius: 28px;
    box-shadow: 0 25px 40px -15px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(255, 255, 255, 0.04);
    padding: 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.header-bar {
    grid-column: 1 / -1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    border-bottom: 1px solid #2d333b;
    padding-bottom: 1rem;
    flex-wrap: wrap;
}

h1 {
    font-size: 1.9rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #f0f6fc;
}

h1 i { color: #2f81f7; font-size: 2rem; }

.lang-switcher {
    display: flex;
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: 30px;
    padding: 3px;
    gap: 2px;
}

.lang-btn {
    background: transparent;
    border: none;
    color: #8b949e;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 0.8rem;
    padding: 0.4rem 0.9rem;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s;
    letter-spacing: 0.03em;
}

.lang-btn:hover { color: #c9d1d9; }

.lang-btn.active {
    background: #2f81f7;
    color: white;
    box-shadow: 0 2px 8px rgba(47, 129, 247, 0.4);
}

.options-panel {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
    min-width: 0;
}

.option-group {
    background: #1c2128;
    border-radius: 18px;
    padding: 1.25rem 1.5rem;
    border: 1px solid #2d333b;
    transition: border-color 0.2s;
}

.option-group:hover { border-color: #3d444d; }

.option-group h2 {
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: #8b949e;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.option-group h2 i { font-size: 1rem; color: #2f81f7; }

.field-row {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.field-row:last-child { margin-bottom: 0; }

.field-row label {
    font-size: 0.875rem;
    font-weight: 500;
    color: #c9d1d9;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.field-row label input[type="checkbox"] {
    width: 18px; height: 18px;
    accent-color: #2f81f7;
    cursor: pointer;
}

.field-row input[type="text"],
.field-row input[type="number"],
.field-row input[type="url"],
.field-row select {
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: 10px;
    padding: 0.6rem 0.9rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    color: #f0f6fc;
    transition: border-color 0.2s, box-shadow 0.2s;
    width: 100%;
}

.field-row input:focus, .field-row select:focus {
    outline: none;
    border-color: #2f81f7;
    box-shadow: 0 0 0 3px rgba(47, 129, 247, 0.15);
}

.field-row input:disabled, .field-row select:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.inline-fields { display: flex; gap: 1rem; flex-wrap: wrap; }
.inline-fields .field-row { flex: 1 1 120px; margin-bottom: 0; }

.hint {
    font-size: 0.75rem;
    color: #8b949e;
    margin-top: 0.25rem;
    display: block;
}

.hint-warning {
    color: #f2cc60;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: 0.4rem;
    line-height: 1.4;
}

.hint-warning i { font-size: 0.8rem; flex-shrink: 0; }
.hint-warning.is-hidden { display: none; }

.log-opts-group {
    background: #0d1117;
    border: 1px dashed #30363d;
    border-radius: 12px;
    padding: 0.85rem 1rem;
    margin-top: 0.5rem;
    transition: border-color 0.2s, opacity 0.2s;
}

.log-opts-group.active {
    border-color: #2f81f7;
    border-style: solid;
    background: rgba(47, 129, 247, 0.04);
}

.log-opts-group.disabled { opacity: 0.45; }

.log-opts-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: #8b949e;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.6rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.runtime-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.runtime-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: 12px;
    padding: 0.75rem 1rem;
    transition: border-color 0.2s, background 0.2s;
}

.runtime-item:hover { border-color: #3d444d; background: #11161d; }
.runtime-item.enabled { border-color: #2f81f7; background: rgba(47, 129, 247, 0.05); }

.runtime-item input[type="checkbox"] {
    width: 18px; height: 18px;
    accent-color: #2f81f7;
    cursor: pointer;
    flex-shrink: 0;
}

.runtime-item .runtime-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    min-width: 0;
}

.runtime-item .runtime-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: #f0f6fc;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.runtime-item .runtime-name .badge {
    font-size: 0.65rem;
    font-weight: 600;
    padding: 0.1rem 0.45rem;
    border-radius: 20px;
    background: #2f81f7;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.runtime-item .runtime-name .badge.gpu { background: #76b900; }
.runtime-item .runtime-desc { font-size: 0.75rem; color: #8b949e; }

.runtime-item .runtime-path {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.75rem;
    color: #79c0ff;
    background: #161b22;
    border: 1px solid #30363d;
    border-radius: 6px;
    padding: 0.35rem 0.6rem;
    flex-shrink: 0;
    max-width: 220px;
    width: 100%;
}

.runtime-item .runtime-path:disabled { opacity: 0.4; cursor: not-allowed; }
.runtime-item .runtime-path:focus {
    outline: none;
    border-color: #2f81f7;
    box-shadow: 0 0 0 2px rgba(47, 129, 247, 0.15);
}

.default-runtime-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: #0d1117;
    border: 1px dashed #30363d;
    border-radius: 12px;
    margin-top: 0.5rem;
}

.default-runtime-row label {
    font-size: 0.875rem;
    font-weight: 500;
    color: #c9d1d9;
    white-space: nowrap;
}

.default-runtime-row select {
    flex: 1;
    background: #161b22;
    border: 1px solid #30363d;
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    color: #f0f6fc;
}

.default-runtime-row select:focus { outline: none; border-color: #2f81f7; }

.proxy-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
    margin-bottom: 0.75rem;
    border-bottom: 1px solid #2d333b;
}

.proxy-toggle label {
    font-size: 0.9rem;
    font-weight: 500;
    color: #f0f6fc;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.proxy-toggle input[type="checkbox"] {
    width: 18px; height: 18px;
    accent-color: #2f81f7;
    cursor: pointer;
}

.proxy-fields {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: opacity 0.2s;
}

.proxy-fields.disabled { opacity: 0.4; pointer-events: none; }

.proxy-scope {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
}

.proxy-scope-option {
    flex: 1 1 auto;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    color: #c9d1d9;
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: 8px;
    padding: 0.4rem 0.7rem;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
}

.proxy-scope-option:hover { border-color: #3d444d; }

.proxy-scope-option input[type="radio"] {
    accent-color: #2f81f7;
    cursor: pointer;
    margin: 0;
}

.proxy-scope-option.active {
    border-color: #2f81f7;
    background: rgba(47, 129, 247, 0.08);
}

.proxy-preview {
    background: #0d1117;
    border: 1px dashed #30363d;
    border-radius: 10px;
    padding: 0.75rem 1rem;
    margin-top: 0.75rem;
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.75rem;
    color: #8b949e;
    white-space: pre-wrap;
    word-break: break-all;
    line-height: 1.5;
    max-height: 240px;
    overflow: auto;
}

.proxy-preview strong { color: #79c0ff; font-weight: 500; }

/* ============ RIGHT COLUMN: daemon.json + containerd.config.toml ============ */

.output-column {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    min-width: 0;
    position: sticky;
    top: 2rem;
    height: fit-content;
    max-height: calc(100vh - 4rem);
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: #30363d transparent;
    padding-right: 4px;
}

.output-column::-webkit-scrollbar { width: 8px; }
.output-column::-webkit-scrollbar-track { background: transparent; }
.output-column::-webkit-scrollbar-thumb {
    background: #30363d;
    border-radius: 4px;
}
.output-column::-webkit-scrollbar-thumb:hover { background: #3d444d; }

.output-panel {
    display: flex;
    flex-direction: column;
    background: #0d1117;
    border-radius: 18px;
    border: 1px solid #2d333b;
    overflow: hidden;
}

.containerd-panel { border-color: rgba(242, 204, 96, 0.35); }
.containerd-panel .output-header {
    background: linear-gradient(180deg, rgba(242, 204, 96, 0.08), #1c2128);
    border-bottom-color: rgba(242, 204, 96, 0.25);
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: #1c2128;
    border-bottom: 1px solid #2d333b;
    gap: 0.75rem;
}

/* Только прямые потомки — не задевает span внутри кнопки Copy */
.output-header > span {
    font-size: 0.9rem;
    font-weight: 500;
    color: #8b949e;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.containerd-panel .output-header > span { color: #f2cc60; }

.copy-btn {
    background: #2f81f7;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #000000;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 0.85rem;
    padding: 0.5rem 1.2rem;
    border-radius: 30px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
    box-shadow: 0 4px 12px rgba(47, 129, 247, 0.3);
    flex-shrink: 0;
}

/* Текст и иконка внутри кнопки наследуют её цвет —
   перебивает возможные правила для вложенных span */
.copy-btn span,
.copy-btn i {
    color: inherit;
}

.copy-btn:hover { background: #388bfd; }
.copy-btn:active { transform: scale(0.97); }

.copy-btn.copied {
    background: #3fb950;
    color: #000000;
    box-shadow: 0 4px 12px rgba(63, 185, 80, 0.4);
}

.json-container {
    padding: 1.5rem;
    background: #0d1117;
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    white-space: pre;
    color: #e6edf3;
    tab-size: 2;
    overflow-x: auto;
}

.json-container code { font-family: inherit; }
.json-key { color: #79c0ff; }
.json-string { color: #a5d6ff; }
.json-number { color: #f2cc60; }
.json-boolean { color: #ff7b72; }
.json-null { color: #8b949e; }

.toml-comment { color: #8b949e; font-style: italic; }
.toml-key { color: #79c0ff; }
.toml-string { color: #a5d6ff; }

/* ============ RESPONSIVE ============ */

@media (max-width: 900px) {
    .container {
        grid-template-columns: 1fr;
        padding: 1.5rem;
    }
    .output-column {
        position: static;
        max-height: none;
        overflow: visible;
    }
    h1 { font-size: 1.5rem; }
}

@media (max-width: 480px) {
    body { padding: 1rem 0.75rem; }
    .container { padding: 1rem; border-radius: 20px; }
    .option-group { padding: 1rem; }
    .json-container { font-size: 0.8rem; padding: 1rem; }
    .runtime-item { flex-wrap: wrap; }
    .runtime-item .runtime-path { max-width: 100%; }
    .header-bar { flex-direction: column; align-items: flex-start; }
    .output-header { padding: 0.75rem 1rem; }
    .output-header > span { font-size: 0.8rem; }
    .copy-btn { padding: 0.4rem 0.9rem; font-size: 0.8rem; }
}

.field-row input[type="checkbox"]:focus-visible {
    outline: 2px solid #2f81f7;
    outline-offset: 2px;
}

.select-wrapper { position: relative; }
.select-wrapper select { appearance: none; padding-right: 2.2rem; }
.select-wrapper::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 0.7rem;
    color: #8b949e;
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
}