/* ===========================================================
 *  Story Arc archive — /story-arc/{slug}/
 *  Hero + sidebar (other arcs) + episode list + prev/next arc.
 * =========================================================== */

.arc-archive {
    --aa-gold:  var(--gold,  #b88a52);
    --aa-deep:  var(--gold-deep, #92662f);
    --aa-navy:  var(--navy,  #1e3a5f);
    --aa-ink:   var(--ink,   #0b1726);
    --aa-paper: var(--paper, #faf7f1);
    --aa-line:  var(--line,  #e7e0d6);
    background: var(--aa-paper);
}

/* ---- Hero ---- */
.arc-hero {
    position: relative;
    background:
        linear-gradient(180deg, rgba(11, 23, 38, 0.92) 0%, rgba(11, 23, 38, 0.96) 100%);
    color: #fff;
    padding: 160px 24px 80px;
    overflow: hidden;
}
.arc-hero::before {
    /* faint serif backdrop watermark */
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 25% 30%, rgba(184, 138, 82, 0.18), transparent 55%),
        radial-gradient(ellipse at 80% 80%, rgba(30, 58, 95, 0.6), transparent 60%);
    pointer-events: none;
}
.arc-hero::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: 0; height: 1px;
    background: linear-gradient(90deg, transparent, rgba(184, 138, 82, 0.5), transparent);
}
.arc-hero-inner {
    position: relative;
    max-width: 1400px;
    margin: 0 auto;
}

.arc-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: monospace;
    font-size: 11.5px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    margin-bottom: 48px;
    transition: color 0.2s, gap 0.2s;
}
.arc-back:hover { color: var(--aa-gold); gap: 12px; }
.arc-back svg { width: 16px; height: 16px; }

.arc-tag {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 24px;
    font-family: monospace;
    font-size: 12px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--aa-gold);
}
.arc-tag .num {
    padding: 6px 14px;
    border: 1px solid rgba(184, 138, 82, 0.5);
    border-radius: 999px;
    background: rgba(184, 138, 82, 0.08);
}
.arc-tag .dot {
    width: 4px; height: 4px;
    border-radius: 50%;
    background: rgba(184, 138, 82, 0.6);
}
.arc-tag .ct {
    color: rgba(255, 255, 255, 0.55);
}

.arc-title {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-size: clamp(48px, 8vw, 86px);
    line-height: 1.05;
    color: #fff;
    margin: 0 0 24px;
    font-weight: 500;
    letter-spacing: -0.01em;
}
.arc-title .accent {
    color: var(--aa-gold);
    font-style: italic;
}

.arc-en {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-style: italic;
    font-size: 22px;
    color: rgba(255, 255, 255, 0.7);
    margin: 0 0 16px;
    font-weight: 400;
}
.arc-desc {
    font-size: 16px;
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.7);
    margin: 16px 0 0;
    max-width: 720px;
}

/* ---- Body grid ---- */
.arc-main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 64px 24px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 56px;
    align-items: start;
}

/* ---- Sidebar ---- */
.arc-sidebar {
    position: sticky;
    top: 100px;
}
.sidebar-card {
    background: #fff;
    border: 1px solid var(--aa-line);
    border-radius: 14px;
    padding: 22px 22px 18px;
    box-shadow: 0 1px 3px rgba(11, 23, 38, 0.04);
}
.sidebar-card h6 {
    font-family: monospace;
    font-size: 11px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--aa-gold);
    margin: 0 0 14px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--aa-line);
}
.sidebar-card ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.sidebar-card .arc-jump {
    display: grid;
    grid-template-columns: 28px 1fr auto;
    gap: 12px;
    align-items: baseline;
    padding: 10px 10px;
    border-radius: 8px;
    color: var(--aa-ink);
    text-decoration: none;
    font-size: 14px;
    line-height: 1.4;
    transition: background 0.15s, color 0.15s;
}
.sidebar-card .arc-jump:hover {
    background: var(--aa-paper);
    color: var(--aa-navy);
}
.sidebar-card .arc-jump .n {
    font-family: monospace;
    font-size: 11px;
    color: var(--aa-gold);
    font-weight: 600;
    letter-spacing: 0.05em;
}
.sidebar-card .arc-jump .name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.sidebar-card .arc-jump .ct {
    font-family: monospace;
    font-size: 11px;
    color: rgba(11, 23, 38, 0.45);
}
.sidebar-card li.is-current .arc-jump {
    background: rgba(184, 138, 82, 0.1);
    color: var(--aa-navy);
    font-weight: 600;
}
.sidebar-card li.is-current .arc-jump .n {
    color: var(--aa-deep);
}

/* ---- Episode list ---- */
section.arc-list,
.arc-list {
    padding: 0 !important;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.arc-ep-card {
    display: grid;
    grid-template-columns: 120px minmax(0, 1fr);
    background: #fff;
    border: 1px solid var(--aa-line);
    border-radius: 18px;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 1px 2px rgba(11, 23, 38, 0.03);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.arc-ep-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(11, 23, 38, 0.1);
    border-color: rgba(184, 138, 82, 0.6);
}

.arc-ep-card .ep-num {
    background:
        linear-gradient(165deg, var(--aa-navy) 0%, var(--aa-ink) 100%);
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 32px 16px;
    border-right: 1px solid rgba(255, 255, 255, 0.06);
    position: relative;
    text-align: center;
}
.arc-ep-card .ep-num::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 0%, rgba(184, 138, 82, 0.18), transparent 60%);
    pointer-events: none;
}
.arc-ep-card .ep-num .n {
    position: relative;
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-size: 56px;
    line-height: 1;
    font-weight: 500;
    color: var(--aa-gold);
    letter-spacing: -0.02em;
}
.arc-ep-card .ep-num .label {
    position: relative;
    font-family: monospace;
    font-size: 10px;
    letter-spacing: 0.24em;
    color: rgba(255, 255, 255, 0.5);
    margin-top: 6px;
}

.arc-ep-card .ep-body {
    padding: 30px 32px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.arc-ep-card .ep-title {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-size: 28px;
    line-height: 1.25;
    color: var(--aa-ink);
    margin: 0;
    font-weight: 600;
    transition: color 0.2s;
}
.arc-ep-card:hover .ep-title { color: var(--aa-navy); }
.arc-ep-card .ep-title .accent {
    color: var(--aa-gold);
    font-style: italic;
}
.arc-ep-card .ep-lede {
    font-size: 14.5px;
    line-height: 1.75;
    color: rgba(11, 23, 38, 0.65);
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.arc-ep-card .ep-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: monospace;
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--aa-gold);
    margin-top: 6px;
    transition: gap 0.2s;
}
.arc-ep-card:hover .ep-cta { gap: 12px; }
.arc-ep-card .ep-cta svg { width: 14px; height: 14px; }

.arc-empty {
    text-align: center;
    padding: 64px 24px;
    color: rgba(11, 23, 38, 0.5);
    font-size: 15px;
    background: #fff;
    border: 1px dashed var(--aa-line);
    border-radius: 14px;
}

/* ---- Prev / next arc nav ---- */
.arc-nav {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px 100px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}
.arc-nav-link {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 24px 28px;
    background: #fff;
    border: 1px solid var(--aa-line);
    border-radius: 14px;
    text-decoration: none;
    color: var(--aa-ink);
    transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.arc-nav-link:hover {
    border-color: rgba(184, 138, 82, 0.6);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(11, 23, 38, 0.08);
}
.arc-nav-link.next { text-align: right; align-items: flex-end; }
.arc-nav-link .dir {
    font-family: monospace;
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--aa-gold);
}
.arc-nav-link .t {
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-size: 22px;
    color: var(--aa-ink);
    font-weight: 600;
    line-height: 1.3;
}
.arc-nav-link .t small {
    display: block;
    font-family: monospace;
    font-size: 10px;
    letter-spacing: 0.16em;
    color: rgba(11, 23, 38, 0.45);
    font-weight: 400;
    margin-bottom: 2px;
}

/* ---- Responsive ---- */
@media (max-width: 980px) {
    .arc-main {
        grid-template-columns: 1fr;
        gap: 40px;
        padding-top: 56px;
    }
    .arc-sidebar { position: static; }
}

@media (max-width: 720px) {
    .arc-hero {
        padding: 120px 24px 56px;
    }
    .arc-back { margin-bottom: 32px; }
    .arc-title { font-size: clamp(36px, 11vw, 52px); }
    .arc-en { font-size: 18px; }

    .arc-main { padding: 48px 24px; gap: 32px; }

    .arc-ep-card { grid-template-columns: 80px minmax(0, 1fr); }
    .arc-ep-card .ep-num { padding: 22px 10px; }
    .arc-ep-card .ep-num .n { font-size: 38px; }
    .arc-ep-card .ep-body { padding: 22px 22px; }
    .arc-ep-card .ep-title { font-size: 22px; }

    .arc-nav { grid-template-columns: 1fr; padding-bottom: 64px; }
    .arc-nav-link { padding: 20px 22px; }
}