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

:root {
    --bg: #0F172A;
    --surface: #1E293B;
    --surface2: #272F42;
    --border: #334155;
    --border-hover: #475569;
    --text: #F1F5F9;
    --text2: #94A3B8;
    --text3: #64748B;
    --accent: #22C55E;
    --accent-hover: #16A34A;
    --accent-bg: rgba(34, 197, 94, 0.1);
    --danger: #EF4444;
    --danger-hover: #DC2626;
    --danger-bg: rgba(239, 68, 68, 0.1);
    --radius: 8px;
    --radius-sm: 6px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

#app {
    max-width: 1000px;
    margin: 0 auto;
    padding: 32px 20px;
}

header {
    text-align: center;
    margin-bottom: 32px;
}

h1 {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text);
}

.subtitle {
    color: var(--text2);
    font-size: 0.875rem;
    margin-top: 4px;
}

.toolbar {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 16px;
    margin-bottom: 12px;
}

.toolbar-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.search-row {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
    position: relative;
}

.search-icon {
    position: absolute;
    left: 12px;
    color: var(--text3);
    pointer-events: none;
    flex-shrink: 0;
}

.search-box {
    flex: 1;
    padding: 8px 12px 8px 34px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface2);
    color: var(--text);
    font-size: 0.8125rem;
    outline: none;
    transition: border-color 0.15s;
    font-family: inherit;
}

.search-box:focus {
    border-color: var(--accent);
}

.search-box::placeholder {
    color: var(--text3);
}

.spacer {
    flex: 1;
}

.stats {
    font-size: 0.75rem;
    color: var(--text3);
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface2);
    color: var(--text);
    cursor: pointer;
    font-size: 0.8125rem;
    font-family: inherit;
    font-weight: 500;
    transition: all 0.15s;
    white-space: nowrap;
    user-select: none;
}

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

.btn:active {
    transform: scale(0.97);
}

.btn.primary {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.btn.primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}

.btn.danger {
    border-color: transparent;
    color: var(--danger);
    background: var(--danger-bg);
}

.btn.danger:hover {
    background: var(--danger);
    color: #fff;
}

.btn-sm {
    padding: 4px 10px;
    font-size: 0.75rem;
}

.btn svg {
    flex-shrink: 0;
}

.table-wrap {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
}

thead th {
    text-align: left;
    padding: 10px 14px;
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--text3);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border-bottom: 1px solid var(--border);
    background: var(--surface2);
}

tbody td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    font-size: 0.8125rem;
}

tbody tr:last-child td {
    border-bottom: none;
}

tbody tr {
    transition: background 0.1s;
}

tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.col-key {
    width: 26%;
}

.col-val {
    width: 44%;
}

.col-size {
    width: 12%;
}

.col-actions {
    width: 18%;
    text-align: right;
}

.col-key {
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    font-size: 0.75rem;
    word-break: break-all;
    color: var(--accent);
    font-weight: 500;
}

.col-val {
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    font-size: 0.75rem;
    color: var(--text2);
    white-space: pre;
    overflow: hidden;
    text-overflow: ellipsis;
}

.col-size {
    color: var(--text3);
    text-align: center;
    font-variant-numeric: tabular-nums;
    font-size: 0.75rem;
}

.action-btn {
    padding: 3px 10px;
    border-radius: 4px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text2);
    cursor: pointer;
    font-size: 0.75rem;
    font-family: inherit;
    transition: all 0.12s;
}

.action-btn:hover {
    border-color: var(--border);
    color: var(--text);
    background: var(--surface2);
}

.action-btn.danger {
    color: var(--danger);
}

.action-btn.danger:hover {
    border-color: var(--danger);
    background: var(--danger-bg);
}

.action-btn + .action-btn {
    margin-left: 4px;
}

.empty {
    text-align: center !important;
    color: var(--text3);
    padding: 48px 14px !important;
    font-size: 0.875rem;
}

.editor-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    animation: fadeIn 0.15s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.editor-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 92%;
    max-width: 780px;
    height: 86vh;
    display: flex;
    flex-direction: column;
    animation: slideUp 0.18s ease-out;
    overflow: hidden;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.editor-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.editor-header h2 {
    font-size: 1rem;
    font-weight: 600;
}

.editor-header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.editor-mode-badge {
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 4px;
    background: var(--accent-bg);
    color: var(--accent);
    letter-spacing: 0.03em;
}

.editor-body {
    flex: 1;
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-height: 0;
}

.editor-key-row {
    flex-shrink: 0;
    margin-bottom: 12px;
}

.editor-key-row label {
    display: block;
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--text3);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 4px;
}

.editor-key-row input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface2);
    color: var(--text);
    font-size: 0.8125rem;
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    outline: none;
    transition: border-color 0.15s;
}

.editor-key-row input:focus {
    border-color: var(--accent);
}

.editor-json-wrap {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.editor-json-wrap label {
    display: block;
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--text3);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 4px;
}

#jsoneditor-container {
    flex: 1;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    min-height: 0;
}

.jsoneditor {
    border: none !important;
}

.jsoneditor-menu {
    background-color: var(--surface2) !important;
    border-bottom: 1px solid var(--border) !important;
}

.jsoneditor-menu > .jsoneditor-modes {
    display: none !important;
}

.jsoneditor-menu button {
    background-color: transparent !important;
    filter: brightness(1.5);
    opacity: 0.6;
    transition: opacity 0.12s;
}

.jsoneditor-menu button:hover {
    opacity: 1;
}

.jsoneditor-tree {
    background-color: var(--bg) !important;
}

.jsoneditor-tree .jsoneditor-value.jsoneditor-string {
    color: #7DD3FC !important;
}

.jsoneditor-tree .jsoneditor-value.jsoneditor-number {
    color: #FDE68A !important;
}

.jsoneditor-tree .jsoneditor-value.jsoneditor-boolean {
    color: #6EE7B7 !important;
}

.jsoneditor-tree .jsoneditor-value.jsoneditor-null {
    color: var(--text3) !important;
}

.jsoneditor-tree .jsoneditor-key {
    color: var(--accent) !important;
}

.jsoneditor-tree .jsoneditor-separator {
    color: var(--text3) !important;
}

.jsoneditor-tree .jsoneditor-bracket {
    color: var(--text2) !important;
}

.jsoneditor-tree .jsoneditor-field {
    color: var(--accent) !important;
}

.jsoneditor-tree .jsoneditor-search {
    background-color: var(--surface2) !important;
}

.jsoneditor-tree .jsoneditor-search input {
    background-color: var(--surface) !important;
    color: var(--text) !important;
    border-color: var(--border) !important;
}

.jsoneditor-poweredBy {
    display: none !important;
}

.jsoneditor-contextmenu .jsoneditor-contextmenu {
    background-color: var(--surface) !important;
    border-color: var(--border) !important;
}

.jsoneditor textarea.jsoneditor-text {
    background-color: var(--bg) !important;
    color: var(--text) !important;
}

.jsoneditor textarea.jsoneditor-text::selection {
    background: rgba(34, 197, 94, 0.3);
}

.editor-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}

.editor-hint {
    font-size: 0.75rem;
    color: var(--text3);
}

.editor-hint kbd {
    display: inline-block;
    padding: 1px 5px;
    border: 1px solid var(--border);
    border-radius: 3px;
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    font-size: 0.6875rem;
    background: var(--surface2);
    color: var(--text2);
}

.editor-footer-actions {
    display: flex;
    gap: 8px;
}

.hidden {
    display: none !important;
}

@media (max-width: 640px) {
    #app {
        padding: 16px 10px;
    }

    h1 {
        font-size: 1.25rem;
    }

    .toolbar {
        padding: 10px 12px;
    }

    .toolbar-row.primary-row {
        flex-wrap: wrap;
    }

    .toolbar-row.primary-row .spacer {
        display: none;
    }

    .btn {
        padding: 6px 10px;
        font-size: 0.75rem;
    }

    .btn .btn-text {
        display: none;
    }

    table {
        table-layout: auto;
    }

    .col-size {
        display: none;
    }

    .col-key {
        width: 35%;
    }

    .col-val {
        width: 40%;
    }

    .col-actions {
        width: 25%;
    }

    thead th, tbody td {
        padding: 8px 10px;
    }

    .editor-panel {
        width: 100%;
        height: 100vh;
        border-radius: 0;
        border: none;
    }

    .editor-overlay {
        backdrop-filter: none;
    }

    .editor-header {
        padding: 12px 14px;
    }

    .editor-body {
        padding: 12px 14px;
    }

    .editor-footer {
        padding: 10px 14px;
        flex-direction: column;
        gap: 8px;
    }

    .editor-hint {
        display: none;
    }
}