/* citeproc-ts demo — modern styling */

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

:root {
    --bg: #fafaf9;
    --card-bg: #ffffff;
    --text: #1c1917;
    --text-muted: #78716c;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --border: #e7e5e4;
    --radius: 8px;
    --font: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --mono: "SF Mono", "Cascadia Code", "Fira Code", ui-monospace, monospace;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font);
    font-size: 15px;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
}

.container {
    max-width: 780px;
    margin: 0 auto;
    padding: 40px 24px 80px;
}

/* Header */
header {
    text-align: center;
    padding: 48px 0 36px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 32px;
}

header h1 {
    margin: 0;
    font-size: 2.2em;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text);
}

.subtitle {
    margin: 8px 0 0;
    color: var(--text-muted);
    font-size: 0.95em;
}

.subtitle a {
    color: var(--accent);
    text-decoration: none;
}

.subtitle a:hover {
    text-decoration: underline;
}

/* Controls */
.controls {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 36px;
}

#start-btn {
    padding: 10px 24px;
    font-size: 0.95em;
    font-family: var(--font);
    font-weight: 600;
    color: #fff;
    background: var(--accent);
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 0.15s;
}

#start-btn:hover:not(:disabled) {
    background: var(--accent-hover);
}

#start-btn:disabled {
    opacity: 0.6;
    cursor: default;
}

#time-badge {
    font-size: 0.85em;
    color: var(--text-muted);
    background: #f5f5f4;
    padding: 4px 12px;
    border-radius: 999px;
}

/* Sections */
section {
    margin-bottom: 40px;
}

h2 {
    font-size: 1.1em;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0 0 16px;
    padding: 0;
}

/* Citation & Bibliography output */
#cite-div, #bib-div {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
}

.loading {
    color: var(--text-muted);
    font-style: italic;
}

#cite-div:empty::after {
    content: "Click «Render Citations» to start.";
    color: var(--text-muted);
    font-style: italic;
}
#bib-div:empty {
    display: none;
}

/* CSL-rendered content */
div.csl-entry {
    margin: 0 0 16px 40px;
    line-height: 1.5;
}

div.csl-entry:last-child {
    margin-bottom: 0;
}

div.csl-left-margin {
    width: 2.5em;
    float: left;
    text-align: right;
    padding-right: 8px;
}

div.csl-right-inline {
    margin-left: 2.5em;
}

div.csl-indent {
    margin: 8px 0 8px 2em;
    padding-left: 12px;
    border-left: 3px solid var(--border);
}

div.csl-bib-body {
    margin-top: 8px;
}

div.csl-bib-body .csl-entry {
    margin-bottom: 12px;
}

div.footnote {
    margin-bottom: 6px;
}

/* Footer */
footer {
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    text-align: center;
}

footer p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.82em;
}

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

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

/* Responsive */
@media (max-width: 600px) {
    .container {
        padding: 20px 16px 60px;
    }
    header h1 {
        font-size: 1.6em;
    }
    #cite-div, #bib-div {
        padding: 16px;
    }
    div.csl-entry {
        margin-left: 20px;
    }
}