/**
 * Skill Frontmatter Builder
 * CSS prefix: .sb-
 * Dark theme, CSS custom properties with fallbacks
 */

/* --- Container --- */

.sb-viz {
    max-width: 720px;
    margin: var(--spacing-lg, 2rem) auto;
    padding: var(--spacing-md, 1.5rem) var(--spacing-lg, 2rem);
    background: var(--color-bg-elevated, #111111);
    border-radius: var(--radius-md, 16px);
    border: 1px solid var(--color-border, rgba(255, 255, 255, 0.1));
}

.sb-heading {
    font-size: var(--font-size-base, 1rem);
    font-weight: 600;
    color: var(--color-text-primary, #ffffff);
    margin: 0 0 var(--spacing-xs, 0.5rem);
}

.sb-hint {
    font-size: var(--font-size-xs, 0.75rem);
    color: var(--color-text-tertiary, rgba(255, 255, 255, 0.55));
    margin: 0 0 var(--spacing-sm, 1rem);
    line-height: 1.5;
}

/* --- Two-column Layout --- */

.sb-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md, 1.5rem);
    align-items: start;
}

/* --- Form --- */

.sb-form {
    display: flex;
    flex-direction: column;
}

.sb-fields {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm, 1rem);
}

.sb-field {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.sb-field-inline {
    gap: 0.15rem;
}

.sb-field-label {
    font-size: var(--font-size-sm, 0.875rem);
    font-weight: 600;
    color: var(--color-text-primary, #ffffff);
}

.sb-required {
    color: rgba(255, 255, 255, 0.4);
}

.sb-field-hint {
    font-size: var(--font-size-xs, 0.75rem);
    color: var(--color-text-tertiary, rgba(255, 255, 255, 0.55));
    margin: 0;
    line-height: 1.4;
}

/* --- Input / Textarea --- */

.sb-input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-border, rgba(255, 255, 255, 0.1));
    border-radius: var(--radius-sm, 8px);
    font-family: var(--font-mono, 'SF Mono', Monaco, monospace);
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--color-text-primary, #ffffff);
    background: var(--color-bg-surface, #1a1a1a);
    box-sizing: border-box;
    transition: border-color var(--transition-fast, 150ms ease);
}

.sb-textarea {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-border, rgba(255, 255, 255, 0.1));
    border-radius: var(--radius-sm, 8px);
    font-family: inherit;
    font-size: var(--font-size-sm, 0.875rem);
    line-height: 1.5;
    resize: vertical;
    color: var(--color-text-primary, #ffffff);
    background: var(--color-bg-surface, #1a1a1a);
    box-sizing: border-box;
    transition: border-color var(--transition-fast, 150ms ease);
}

.sb-input:focus,
.sb-textarea:focus {
    outline: 2px solid rgba(255, 255, 255, 0.6);
    outline-offset: 2px;
    border-color: var(--color-border-hover, rgba(255, 255, 255, 0.2));
}

.sb-input::placeholder,
.sb-textarea::placeholder {
    color: var(--color-text-tertiary, rgba(255, 255, 255, 0.55));
}

/* --- Name Validation --- */

.sb-validation {
    font-size: var(--font-size-xs, 0.75rem);
    min-height: 1.2em;
}

.sb-validation-pass {
    color: rgba(255, 255, 255, 0.6);
}

.sb-validation-fail {
    color: rgba(255, 255, 255, 0.45);
}

/* --- Tool Checkboxes --- */

.sb-tools-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.35rem;
}

.sb-tool-option {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.25rem 0.4rem;
    border: 1px solid var(--color-border, rgba(255, 255, 255, 0.1));
    border-radius: 4px;
    cursor: pointer;
    transition: border-color var(--transition-fast, 150ms ease);
}

.sb-tool-option:hover {
    border-color: var(--color-border-hover, rgba(255, 255, 255, 0.2));
}

.sb-checkbox {
    appearance: none;
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    border: 1.5px solid rgba(255, 255, 255, 0.3);
    border-radius: 3px;
    background: transparent;
    cursor: pointer;
    flex-shrink: 0;
    position: relative;
}

.sb-checkbox:checked {
    border-color: rgba(255, 255, 255, 0.7);
    background: rgba(255, 255, 255, 0.15);
}

.sb-checkbox:checked::after {
    content: '\2713';
    position: absolute;
    top: -2px;
    left: 0px;
    font-size: 10px;
    color: rgba(255, 255, 255, 0.8);
}

.sb-checkbox:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.6);
    outline-offset: 2px;
}

.sb-tool-name {
    font-size: var(--font-size-xs, 0.75rem);
    color: var(--color-text-secondary, rgba(255, 255, 255, 0.65));
    font-family: var(--font-mono, 'SF Mono', Monaco, monospace);
}

/* --- Toggle Labels --- */

.sb-toggle-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.sb-toggle-text {
    font-size: var(--font-size-sm, 0.875rem);
    color: var(--color-text-secondary, rgba(255, 255, 255, 0.65));
    font-family: var(--font-mono, 'SF Mono', Monaco, monospace);
}

/* --- Preview Panel --- */

.sb-preview {
    position: sticky;
    top: 1rem;
}

.sb-preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs, 0.5rem);
}

.sb-preview-label {
    font-size: var(--font-size-xs, 0.75rem);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-tertiary, rgba(255, 255, 255, 0.55));
    font-weight: 600;
}

.sb-copy-btn {
    padding: 0.25rem 0.6rem;
    border: 1px solid var(--color-border, rgba(255, 255, 255, 0.1));
    border-radius: 4px;
    background: transparent;
    color: var(--color-text-secondary, rgba(255, 255, 255, 0.65));
    font-size: var(--font-size-xs, 0.75rem);
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition-fast, 150ms ease);
}

.sb-copy-btn:hover {
    border-color: var(--color-border-hover, rgba(255, 255, 255, 0.2));
    color: var(--color-text-primary, #ffffff);
}

.sb-copy-btn:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.6);
    outline-offset: 2px;
}

.sb-code {
    padding: 0.75rem 1rem;
    background: var(--color-bg-surface, #1a1a1a);
    border: 1px solid var(--color-border, rgba(255, 255, 255, 0.1));
    border-radius: var(--radius-sm, 8px);
    font-family: var(--font-mono, 'SF Mono', Monaco, 'Cascadia Code', monospace);
    font-size: var(--font-size-sm, 0.875rem);
    line-height: 1.6;
    color: var(--color-text-secondary, rgba(255, 255, 255, 0.65));
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
    margin: 0;
}

/* --- Description Quality --- */

.sb-quality:not(:empty) {
    margin-top: var(--spacing-sm, 1rem);
    padding: 0.5rem 0.75rem;
    background: var(--color-bg-surface, #1a1a1a);
    border-radius: var(--radius-sm, 8px);
}

.sb-quality-label {
    font-size: var(--font-size-xs, 0.75rem);
    color: var(--color-text-tertiary, rgba(255, 255, 255, 0.55));
    font-weight: 600;
    display: block;
    margin-bottom: 0.35rem;
}

.sb-quality-checks {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.sb-qc {
    font-size: var(--font-size-xs, 0.75rem);
    line-height: 1.4;
}

.sb-qc-pass {
    color: rgba(255, 255, 255, 0.6);
}

.sb-qc-miss {
    color: rgba(255, 255, 255, 0.35);
}

/* --- Noscript --- */

.sb-noscript {
    padding: var(--spacing-sm, 1rem);
    border: 1px solid var(--color-border, rgba(255, 255, 255, 0.1));
    border-radius: var(--radius-sm, 8px);
    color: var(--color-text-tertiary, rgba(255, 255, 255, 0.55));
    font-size: var(--font-size-sm, 0.875rem);
    text-align: center;
}

/* --- Responsive --- */

@media (max-width: 768px) {
    .sb-viz {
        padding: var(--spacing-sm, 1rem) var(--spacing-md, 1.5rem);
    }

    .sb-layout {
        grid-template-columns: 1fr;
    }

    .sb-preview {
        position: static;
    }

    .sb-tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .sb-viz {
        padding: var(--spacing-sm, 1rem);
        border-radius: var(--radius-sm, 8px);
    }

    .sb-tools-grid {
        grid-template-columns: 1fr 1fr;
    }

    .sb-input,
    .sb-textarea {
        font-size: 1rem;
    }
}

/* --- Reduced motion --- */

@media (prefers-reduced-motion: reduce) {
    .sb-input,
    .sb-textarea,
    .sb-tool-option,
    .sb-copy-btn {
        transition: none;
    }
}