/* ═══════════════════════════════════════════════════════════
   Bibliography — my-inhaler.com
   Aesthetic: Refined Medical Editorial
   ═══════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Crimson+Pro:ital,wght@0,300;0,400;0,600;1,300;1,400&family=DM+Sans:wght@300;400;500&display=swap');

/* ── Variables ── */
:root {
    --ink:        #1a1f2e;
    --ink-soft:   #4a5168;
    --ink-muted:  #8a91a8;
    --canvas:     #f7f6f2;
    --card-bg:    #ffffff;
    --accent:     #1d6fa4;
    --accent-dim: #d0e6f5;
    --rule:       #e2e0d8;
    --shadow-sm:  0 1px 3px rgba(26,31,46,.06), 0 4px 12px rgba(26,31,46,.04);
    --shadow-md:  0 2px 6px rgba(26,31,46,.08), 0 8px 24px rgba(26,31,46,.06);
    --radius:     10px;
    --font-body:  'DM Sans', sans-serif;
    --font-serif: 'Crimson Pro', Georgia, serif;
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; -webkit-font-smoothing: antialiased; }

body {
    background-color: var(--canvas);
    background-image:
        radial-gradient(ellipse 80% 40% at 50% 0%, rgba(29,111,164,.06) 0%, transparent 70%);
    color: var(--ink);
    font-family: var(--font-body);
    min-height: 100vh;
    padding: 0 0 4rem;
}

/* ── Header ── */
.bib-header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--rule);
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1.1rem 2.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 0 var(--rule), 0 4px 16px rgba(26,31,46,.06);
}

.bib-logo {
    height: 32px;
    width: auto;
    flex-shrink: 0;
    opacity: .9;
}

.bib-site-tag {
    font-family: var(--font-body);
    font-size: .72rem;
    font-weight: 500;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--ink-muted);
    padding: .25rem .65rem;
    border: 1px solid var(--rule);
    border-radius: 99px;
    flex-shrink: 0;
}

.bib-inhaler-tag {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    font-weight: 400;
    color: var(--ink-soft);
    margin-left: auto;
    font-style: italic;
    letter-spacing: .01em;
}

.bib-inhaler-tag strong {
    font-style: normal;
    font-weight: 600;
    color: var(--ink);
}

/* ── Cards Container ── */
.bib-cards {
    max-width: 820px;
    margin: 3rem auto 0;
    padding: 0 2rem;
    display: flex;
    flex-direction: column;
    gap: .55rem;
    animation: fadeUp .45s ease both;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0);    }
}

/* ── Individual Card ── */
.bib-card {
    background: var(--card-bg);
    border: 1px solid var(--rule);
    border-radius: var(--radius);
    padding: 1.05rem 1.4rem 1.05rem 1.25rem;
    font-family: var(--font-serif);
    font-size: 1.04rem;
    line-height: 1.72;
    color: var(--ink-soft);
    box-shadow: var(--shadow-sm);
    position: relative;
    transition: box-shadow .18s ease, border-color .18s ease, transform .18s ease;
    /* stagger children */
    animation: cardReveal .35s ease both;
}

.bib-cards .bib-card:nth-child(1)  { animation-delay: .04s }
.bib-cards .bib-card:nth-child(2)  { animation-delay: .08s }
.bib-cards .bib-card:nth-child(3)  { animation-delay: .12s }
.bib-cards .bib-card:nth-child(4)  { animation-delay: .16s }
.bib-cards .bib-card:nth-child(5)  { animation-delay: .20s }
.bib-cards .bib-card:nth-child(6)  { animation-delay: .24s }
.bib-cards .bib-card:nth-child(7)  { animation-delay: .28s }
.bib-cards .bib-card:nth-child(8)  { animation-delay: .32s }
.bib-cards .bib-card:nth-child(n+9){ animation-delay: .36s }

@keyframes cardReveal {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0);   }
}

.bib-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--accent-dim);
    transform: translateY(-1px);
}

/* Left accent stripe */
.bib-card::before {
    content: '';
    position: absolute;
    left: 0; top: 18%; bottom: 18%;
    width: 3px;
    background: var(--accent-dim);
    border-radius: 0 2px 2px 0;
    transition: background .18s ease, top .18s ease, bottom .18s ease;
}

.bib-card:hover::before {
    background: var(--accent);
    top: 12%; bottom: 12%;
}

/* ── Indent levels ── */
.bib-indent-0 { margin-left: 0; }
.bib-indent-1 { margin-left: 1.8rem; border-left-color: transparent; }
.bib-indent-2 { margin-left: 3.6rem; border-left-color: transparent; }
.bib-indent-3 { margin-left: 5.4rem; border-left-color: transparent; }

.bib-indent-1::before { background: color-mix(in srgb, var(--accent-dim) 60%, transparent); }
.bib-indent-2::before { background: color-mix(in srgb, var(--accent-dim) 35%, transparent); }
.bib-indent-3::before { background: color-mix(in srgb, var(--accent-dim) 18%, transparent); }

/* ── Margin variant — extra top breathing room ── */
.bib-card--margin { margin-top: 1.4rem; }

.bib-card--margin::after {
    content: '';
    position: absolute;
    top: -1.1rem; left: 1.25rem;
    width: 28px; height: 1px;
    background: var(--rule);
}

/* ── Inline elements ── */

/* Superscript citation numbers */
.bib-card sup.bib-citation,
.bib-card sup {
    font-family: var(--font-body);
    font-size: .6rem;
    font-weight: 500;
    color: var(--accent);
    background: var(--accent-dim);
    padding: .08em .32em;
    border-radius: 4px;
    margin: 0 .12em;
    vertical-align: super;
    line-height: 1;
    letter-spacing: .02em;
    transition: background .15s;
}

.bib-card:hover sup.bib-citation,
.bib-card:hover sup {
    background: color-mix(in srgb, var(--accent-dim) 80%, var(--accent) 20%);
}

/* Links */
.bib-card a {
    color: var(--accent);
    text-decoration: underline;
    text-decoration-color: var(--accent-dim);
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
    font-style: normal;
    transition: color .15s, text-decoration-color .15s;
    word-break: break-all;
}

.bib-card a:hover {
    color: #145880;
    text-decoration-color: var(--accent);
}

/* Bold / italic within cards */
.bib-card strong, .bib-card b {
    font-weight: 600;
    color: var(--ink);
}

.bib-card em, .bib-card i {
    font-style: italic;
    color: var(--ink);
}

/* ── Responsive ── */
@media (max-width: 680px) {
    .bib-header { padding: .9rem 1.25rem; gap: .85rem; }
    .bib-inhaler-tag { display: none; }
    .bib-cards { padding: 0 1rem; margin-top: 1.75rem; }
    .bib-indent-1 { margin-left: 1rem; }
    .bib-indent-2 { margin-left: 2rem; }
    .bib-indent-3 { margin-left: 3rem; }
    .bib-card { font-size: .97rem; padding: .9rem 1.1rem .9rem 1rem; }
}

@media print {
    body { background: white; }
    .bib-header { position: static; box-shadow: none; border-bottom: 1pt solid #ccc; }
    .bib-card { box-shadow: none; break-inside: avoid; animation: none; }
    .bib-card::before { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}