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

:root {
    --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
}

body {
    font-family: var(--bc-font-family);
    background: var(--bc-surface-base);
    color: var(--bc-text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
header {
    border-bottom: 1px solid var(--bc-border-default);
    padding: 24px 0;
}

.header-top h1 {
    font-size: 24px;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.header-top h1 span {
    color: var(--bc-color-primary);
}

.header-tagline {
    color: var(--bc-text-secondary);
    font-size: 14px;
    margin-top: 4px;
}


/* Quick Examples */
.examples-section {
    padding: 24px 0 0;
}

.examples-section h2 {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--bc-text-secondary);
    margin-bottom: 12px;
}

.examples-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.example-btn {
    padding: 6px 14px;
    background: var(--bc-surface-raised);
    border: 1px solid var(--bc-border-default);
    border-radius: 20px;
    color: var(--bc-text-primary);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
}

.example-btn:hover {
    border-color: var(--bc-color-info);
    color: var(--bc-color-info);
}

.example-btn .example-label {
    font-weight: 500;
}

.example-btn .example-data {
    color: var(--bc-text-secondary);
    font-family: var(--font-mono);
    font-size: 11px;
    margin-left: 4px;
}

/* Main layout */
main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    padding: 32px 0;
}

/* Panels */
.panel {
    background: var(--bc-surface-raised);
    border: 1px solid var(--bc-border-default);
    border-radius: var(--bc-radius-md);
    padding: 24px;
}

.panel h2 {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--bc-text-secondary);
    margin-bottom: 20px;
}

/* Form controls */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--bc-text-secondary);
    margin-bottom: 6px;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group select {
    width: 100%;
    padding: 8px 12px;
    background: var(--bc-surface-base);
    border: 1px solid var(--bc-border-default);
    border-radius: var(--bc-radius-md);
    color: var(--bc-text-primary);
    font-size: 14px;
    font-family: var(--font-mono);
    outline: none;
    transition: border-color 0.15s;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--bc-color-info);
}

/* Color inputs */
.color-row {
    display: flex;
    gap: 12px;
}

.color-row .form-group {
    flex: 1;
}

.color-input-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bc-surface-base);
    border: 1px solid var(--bc-border-default);
    border-radius: var(--bc-radius-md);
    padding: 4px 8px;
}

.color-input-wrapper:focus-within {
    border-color: var(--bc-color-info);
}

.color-input-wrapper input[type="color"] {
    width: 28px;
    height: 28px;
    border: none;
    background: none;
    cursor: pointer;
    padding: 0;
}

.color-input-wrapper input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

.color-input-wrapper input[type="color"]::-webkit-color-swatch {
    border: 1px solid var(--bc-border-default);
    border-radius: 3px;
}

.color-input-wrapper input[type="text"] {
    border: none;
    background: none;
    padding: 4px 0;
    width: 70px;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--bc-text-primary);
    outline: none;
}

/* Format toggle */
.format-toggle {
    display: flex;
    background: var(--bc-surface-base);
    border: 1px solid var(--bc-border-default);
    border-radius: var(--bc-radius-md);
    overflow: hidden;
}

.format-toggle button {
    flex: 1;
    padding: 8px 16px;
    background: none;
    border: none;
    color: var(--bc-text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}

.format-toggle button.active {
    background: var(--bc-color-info);
    color: var(--bc-text-on-primary);
}

.format-toggle button:hover:not(.active) {
    color: var(--bc-text-primary);
}

/* Preview panel */
.preview-area {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    background: var(--bc-surface-base);
    border: 1px solid var(--bc-border-default);
    border-radius: var(--bc-radius-md);
    padding: 24px;
    margin-bottom: 16px;
}

.preview-area img {
    max-width: 100%;
    max-height: 400px;
    image-rendering: pixelated;
}

.preview-area .placeholder {
    color: var(--bc-text-secondary);
    font-size: 14px;
}

.preview-area .error-msg {
    color: var(--bc-color-danger);
    font-size: 13px;
    text-align: center;
}

/* URL bar */
.url-bar {
    display: flex;
    gap: 8px;
    align-items: stretch;
}

.url-bar input {
    flex: 1;
    padding: 8px 12px;
    background: var(--bc-surface-base);
    border: 1px solid var(--bc-border-default);
    border-radius: var(--bc-radius-md);
    color: var(--bc-text-secondary);
    font-family: var(--font-mono);
    font-size: 12px;
    outline: none;
}

.url-bar input:focus {
    border-color: var(--bc-color-info);
}

.btn-copy {
    padding: 8px 16px;
    background: var(--bc-surface-muted);
    border: 1px solid var(--bc-border-default);
    border-radius: var(--bc-radius-md);
    color: var(--bc-text-primary);
    font-size: 13px;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.15s;
}

.btn-copy:hover {
    background: var(--bc-border-default);
}

.btn-copy.copied {
    background: var(--bc-color-success);
    border-color: var(--bc-color-success);
    color: var(--bc-text-on-primary);
}

/* Mode toggle */
.mode-toggle {
    display: flex;
    background: var(--bc-surface-base);
    border: 1px solid var(--bc-border-default);
    border-radius: var(--bc-radius-md);
    overflow: hidden;
}

.mode-toggle button {
    flex: 1;
    padding: 8px 16px;
    background: none;
    border: none;
    color: var(--bc-text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}

.mode-toggle button.active {
    background: var(--bc-color-info);
    color: var(--bc-text-on-primary);
}

.mode-toggle button:hover:not(.active) {
    color: var(--bc-text-primary);
}

.template-hint {
    display: none;
    font-size: 12px;
    color: var(--bc-color-info);
    margin-top: 6px;
    font-family: var(--font-mono);
}

.template-hint.visible {
    display: block;
}

/* Reset button */
.btn-reset {
    width: 100%;
    padding: 10px;
    margin-top: 8px;
    background: var(--bc-surface-muted);
    border: 1px solid var(--bc-border-default);
    border-radius: var(--bc-radius-md);
    color: var(--bc-text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}

.btn-reset:hover {
    border-color: var(--bc-color-danger);
    color: var(--bc-color-danger);
}

/* Snippets panel */
.snippets-section {
    background: var(--bc-surface-raised);
    border: 1px solid var(--bc-border-default);
    border-radius: var(--bc-radius-md);
    padding: 24px;
    margin-bottom: 32px;
}

.snippets-section h2 {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--bc-text-secondary);
    margin-bottom: 16px;
}

.snippet-tabs {
    display: flex;
    background: var(--bc-surface-base);
    border: 1px solid var(--bc-border-default);
    border-radius: var(--bc-radius-md) var(--bc-radius-md) 0 0;
    overflow: hidden;
    border-bottom: none;
}

.snippet-tabs button {
    padding: 8px 20px;
    background: none;
    border: none;
    color: var(--bc-text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    border-right: 1px solid var(--bc-border-default);
}

.snippet-tabs button:last-child {
    border-right: none;
}

.snippet-tabs button.active {
    background: var(--bc-color-info);
    color: var(--bc-text-on-primary);
}

.snippet-tabs button:hover:not(.active) {
    color: var(--bc-text-primary);
}

.snippet-code-wrapper {
    position: relative;
    background: var(--bc-surface-base);
    border: 1px solid var(--bc-border-default);
    border-radius: 0 0 var(--bc-radius-md) var(--bc-radius-md);
}

.varname-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    background: var(--bc-surface-base);
    border: 1px solid var(--bc-border-default);
    border-top: none;
}

.varname-bar label {
    font-size: 12px;
    color: var(--bc-text-secondary);
    white-space: nowrap;
}

.varname-bar input {
    width: 140px;
    padding: 4px 8px;
    background: var(--bc-surface-muted);
    border: 1px solid var(--bc-border-default);
    border-radius: var(--bc-radius-md);
    color: var(--bc-text-primary);
    font-family: var(--font-mono);
    font-size: 13px;
    outline: none;
}

.varname-bar input:focus {
    border-color: var(--bc-color-info);
}

.url-expr-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-bottom: 1px solid var(--bc-border-default);
    background: var(--bc-surface-muted);
}

.url-expr-bar code {
    flex: 1;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--bc-color-info);
    white-space: pre;
    overflow-x: auto;
    line-height: 1.6;
}

.url-expr-bar .btn-copy-snippet {
    position: static;
    flex-shrink: 0;
}

.snippet-code-wrapper pre {
    margin: 0;
    padding: 20px;
    overflow-x: auto;
}

.snippet-code-wrapper code {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--bc-text-primary);
    line-height: 1.6;
    white-space: pre;
}

.btn-copy-snippet {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 4px 12px;
    background: var(--bc-surface-muted);
    border: 1px solid var(--bc-border-default);
    border-radius: var(--bc-radius-md);
    color: var(--bc-text-primary);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.15s;
    z-index: 1;
}

.btn-copy-snippet:hover {
    background: var(--bc-border-default);
}

.btn-copy-snippet.copied {
    background: var(--bc-color-success);
    border-color: var(--bc-color-success);
    color: var(--bc-text-on-primary);
}

/* Footer */
footer {
    border-top: 1px solid var(--bc-border-default);
    padding: 24px 0;
    color: var(--bc-text-secondary);
    font-size: 13px;
}

footer .formats-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 8px;
}

footer .format-tag {
    padding: 2px 8px;
    background: var(--bc-surface-raised);
    border: 1px solid var(--bc-border-default);
    border-radius: 12px;
    font-size: 12px;
    font-family: var(--font-mono);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--bc-border-default);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-logo-link {
    display: flex;
    align-items: center;
}

.footer-logo {
    height: 24px;
    width: auto;
    opacity: 0.75;
    transition: opacity 0.15s;
}

.footer-logo-link:hover .footer-logo {
    opacity: 1;
}

/* Responsive */
@media (max-width: 768px) {
    main {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 20px 0;
    }

    header {
        padding: 16px 0;
    }

    .panel {
        padding: 16px;
    }
}