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

:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --bg-hover: #1c2128;
    --border-color: #30363d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --accent-blue: #58a6ff;
    --accent-green: #3fb950;
    --accent-orange: #d29922;
    --accent-red: #f85149;
    --accent-gray: #8b949e;
    --accent-purple: #a371f7;
    --accent-cyan: #39c5cf;
}

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

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    text-align: center;
    margin-bottom: 2rem;
}

header h1 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
}

.input-section {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.input-row {
    display: flex;
    gap: 1rem;
}

.input-row .input-group {
    margin-bottom: 1rem;
}

.input-row .input-group:first-child {
    width: 120px;
    flex-shrink: 0;
}

.input-group.flex-grow {
    flex: 1;
}

.input-group {
    margin-bottom: 1rem;
}

.input-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.input-group input {
    width: 100%;
    padding: 0.625rem 0.75rem;
    font-size: 0.875rem;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

.input-group input:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.3);
}

.input-group input::placeholder {
    color: var(--text-muted);
}

.trace-btn {
    width: 100%;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    background-color: var(--accent-blue);
    color: #ffffff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.trace-btn:hover {
    background-color: #4996e8;
}

.trace-btn:disabled {
    background-color: var(--bg-tertiary);
    color: var(--text-muted);
    cursor: not-allowed;
}

.status {
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
}

.status.hidden {
    display: none;
}

.status.loading {
    background-color: rgba(88, 166, 255, 0.1);
    border: 1px solid var(--accent-blue);
    color: var(--accent-blue);
}

.status.error {
    background-color: rgba(248, 81, 73, 0.1);
    border: 1px solid var(--accent-red);
    color: var(--accent-red);
}

.status.success {
    background-color: rgba(63, 185, 80, 0.1);
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
}

.trace-output {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow-x: auto;
    position: relative;
}

.trace-output.hidden {
    display: none;
}

.trace-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-tertiary);
    position: sticky;
    left: 0;
    z-index: 10;
}

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

.trace-actions {
    display: flex;
    gap: 0.5rem;
}

.action-btn {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s;
}

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

.trace-tree {
    padding: 0.5rem 0;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.8125rem;
    overflow-x: auto;
    min-width: max-content;
}

/* Revert banner at top of trace */
.revert-banner {
    margin: 0.75rem 1rem;
    padding: 1rem 1.25rem;
    background-color: rgba(248, 81, 73, 0.1);
    border: 1px solid var(--accent-red);
    border-radius: 6px;
    border-left: 4px solid var(--accent-red);
    position: sticky;
    left: 0;
    width: fit-content;
    min-width: calc(100% - 2rem);
}

.revert-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--accent-red);
    margin-bottom: 0.375rem;
    letter-spacing: 0.5px;
}

.revert-reason {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

.revert-location {
    margin-top: 0.375rem;
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.revert-contract {
    color: var(--accent-cyan);
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    cursor: default;
}

.revert-location .copy-icon {
    opacity: 0.6;
}

/* Tenderly-style call node */
.call-node {
    position: relative;
}

.call-row {
    display: flex;
    align-items: stretch;
    min-height: 36px;
    cursor: pointer;
    transition: background-color 0.1s;
    white-space: nowrap;
}

.call-row:hover {
    background-color: var(--bg-hover);
}

.call-indent {
    display: flex;
    flex-shrink: 0;
}

.indent-guide {
    width: 24px;
    position: relative;
}

.indent-guide::before {
    content: '';
    position: absolute;
    left: 11px;
    top: 0;
    bottom: 0;
    width: 1px;
    background-color: var(--border-color);
}

.indent-guide.last::before {
    bottom: 50%;
}

.indent-guide.empty::before {
    display: none;
}

.call-toggle {
    width: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
}

.call-toggle::before {
    content: '';
    position: absolute;
    left: 11px;
    top: 0;
    height: 50%;
    width: 1px;
    background-color: var(--border-color);
}

.call-toggle::after {
    content: '';
    position: absolute;
    left: 11px;
    top: 50%;
    width: 12px;
    height: 1px;
    background-color: var(--border-color);
}

.call-toggle.root::before {
    display: none;
}

.toggle-btn {
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 3px;
    color: var(--text-muted);
    font-size: 10px;
    z-index: 1;
    cursor: pointer;
}

.toggle-btn:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.call-toggle.no-children .toggle-btn {
    visibility: hidden;
}

.call-toggle.no-children::after {
    left: 11px;
    width: 12px;
}

.call-content {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem 0.5rem 0.5rem;
}

.call-type {
    padding: 0.125rem 0.5rem;
    font-size: 0.6875rem;
    font-weight: 600;
    border-radius: 3px;
    text-transform: uppercase;
    flex-shrink: 0;
}

.call-type.CALL {
    background-color: rgba(88, 166, 255, 0.15);
    color: var(--accent-blue);
}

.call-type.STATICCALL {
    background-color: rgba(139, 148, 158, 0.15);
    color: var(--accent-gray);
}

.call-type.DELEGATECALL {
    background-color: rgba(210, 153, 34, 0.15);
    color: var(--accent-orange);
}

.call-type.CALLCODE {
    background-color: rgba(163, 113, 247, 0.15);
    color: var(--accent-purple);
}

.call-type.CREATE,
.call-type.CREATE2 {
    background-color: rgba(63, 185, 80, 0.15);
    color: var(--accent-green);
}

.call-info {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
    flex: 1;
}

.call-main {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    white-space: nowrap;
}

.contract-name {
    color: var(--accent-cyan);
    font-weight: 500;
}

.contract-address {
    color: var(--text-muted);
    font-size: 0.75rem;
}

.function-name {
    color: var(--accent-purple);
    font-weight: 500;
}

.call-separator {
    color: var(--text-muted);
}

.call-params {
    color: var(--text-secondary);
    font-size: 0.75rem;
    white-space: nowrap;
}

.param-name {
    color: var(--accent-orange);
}

.param-value {
    color: var(--text-secondary);
}

.param-value.address {
    color: var(--accent-blue);
}

.param-value.address.named {
    color: var(--accent-cyan);
}

.param-value.number {
    color: var(--accent-green);
}

.param-value.dynamic {
    color: var(--text-muted);
    font-style: italic;
}

.call-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.call-gas {
    color: var(--text-muted);
}

.call-value {
    color: var(--accent-orange);
}

.call-error-badge {
    background-color: rgba(248, 81, 73, 0.15);
    color: var(--accent-red);
    padding: 0.125rem 0.375rem;
    border-radius: 3px;
    font-size: 0.6875rem;
    font-weight: 500;
}

.call-children {
    position: relative;
}

.call-children.collapsed {
    display: none;
}

.copy-icon {
    display: inline-block;
    margin-left: 0.25rem;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.875rem;
    opacity: 0;
    transition: opacity 0.15s, color 0.15s;
    vertical-align: middle;
}

.call-row:hover .copy-icon {
    opacity: 0.6;
}

.copy-icon:hover {
    opacity: 1 !important;
    color: var(--accent-blue);
}

.copy-icon.copied {
    color: var(--accent-green);
    opacity: 1 !important;
}

/* Calldata section */
.call-details {
    padding: 0.5rem 1rem 0.75rem;
    padding-left: calc(var(--indent-width, 0) * 24px + 48px);
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    white-space: nowrap;
}

.calldata-wrapper {
    margin-top: 0.25rem;
}

.calldata-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.calldata-value {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.calldata-section {
    margin-top: 0.375rem;
    padding: 0.5rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    word-break: break-all;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

.calldata-section.hidden {
    display: none;
}

.return-data {
    margin-top: 0.375rem;
    font-size: 0.75rem;
}

.return-label {
    color: var(--text-muted);
}

.return-value {
    color: var(--accent-green);
}

.error-message {
    margin-top: 0.375rem;
    padding: 0.375rem 0.5rem;
    background-color: rgba(248, 81, 73, 0.1);
    border-radius: 3px;
    font-size: 0.75rem;
    color: var(--accent-red);
}

footer {
    margin-top: 2rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.75rem;
}

footer a {
    color: var(--accent-blue);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    .input-row {
        flex-direction: column;
        gap: 0;
    }

    .input-row .input-group:first-child {
        width: 100%;
    }

    .trace-header {
        flex-direction: column;
        gap: 0.75rem;
        align-items: flex-start;
    }

    .call-meta {
        display: none;
    }
}