/* Shared chrome for all tool pages.
   Tool pages link to this as ../tool-base.css
   and to the site theme as ../../theme.css       */

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

body {
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    height: 100dvh;
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
}

.tool-header {
    background: var(--color-bg-section);
    border-bottom: 1px solid var(--color-accent);
    padding: 0.6rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex-shrink: 0;
}

.tool-back {
    color: var(--color-accent);
    text-shadow: var(--glow);
    text-decoration: none;
    font-family: var(--font-display);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    opacity: 0.85;
    white-space: nowrap;
}

.tool-back:hover {
    opacity: 1;
    text-decoration: underline;
}

.tool-crumbs {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tool-crumb-sep {
    color: var(--color-text-muted);
    opacity: 0.7;
    font-size: 0.75rem;
}

.tool-header h1 {
    color: var(--color-accent);
    text-shadow: var(--glow-strong);
    margin: 0;
    font-family: var(--font-display-small);
    font-size: 1.2rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.tool-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* About bar + version footer, filled by ../tool-meta.js from the tool's
   descriptor markdown. (qr-coaster-inator predates these shared rules and keeps
   identical local copies of the about styles.) */
#about-bar {
    flex-shrink: 0;
    padding: 0 1rem;
    background: var(--color-bg-section);
    border-bottom: 1px solid var(--color-border);
}
#about-bar > summary {
    list-style: none;
    cursor: pointer;
    padding: 0.4rem 0;
    font-family: var(--font-display-small);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    user-select: none;
}
#about-bar > summary::-webkit-details-marker { display: none; }
#about-bar > summary::before { content: '▸  '; }
#about-bar[open] > summary::before { content: '▾  '; }

.about-content {
    padding-bottom: 0.7rem;
    max-width: 42rem;
    font-size: 0.82rem;
    line-height: 1.5;
    color: var(--color-text-muted);
}
.about-content p { margin: 0 0 0.6rem; }
.about-content ul { margin: 0 0 0.6rem; padding-left: 1.1rem; }
.about-content li { margin: 0.15rem 0; }
.about-content a { color: var(--color-accent); }
.about-content strong { color: var(--color-text); }

.tool-footer {
    flex-shrink: 0;
    text-align: right;
    padding: 0.2rem 0.75rem;
    font-size: 0.62rem;
    color: var(--color-text-dim);
    background: var(--color-bg-section);
    border-top: 1px solid var(--color-border);
}