/* Theme identity layer — makes 废土 / 夜巡 / 终端 visually distinct */

/* 夜巡：编辑部暗色，圆角卡片、衬线标题、暖色正文 */
:root[data-theme="dark"] body {
    background: var(--body-bg);
}

:root[data-theme="dark"] .brand-mark::before,
:root[data-theme="dark"] .brand-sub::before {
    content: none;
}

:root[data-theme="dark"] .site-header {
    backdrop-filter: blur(14px);
    background: var(--header-bg);
    border-bottom: 1px solid var(--line);
    box-shadow: none;
}

:root[data-theme="dark"] .nav-links,
:root[data-theme="dark"] .theme-switcher {
    border: 0;
    background: transparent;
    gap: 10px;
}

:root[data-theme="dark"] .nav-link,
:root[data-theme="dark"] .theme-button,
:root[data-theme="dark"] .nav-toggle,
:root[data-theme="dark"] .back-to-top {
    border: 1px solid transparent;
    border-radius: 999px;
    font-family: var(--body-font);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: normal;
    text-transform: none;
}

:root[data-theme="dark"] .nav-link.is-active,
:root[data-theme="dark"] .theme-button.is-active {
    background: var(--tag-bg);
    color: var(--accent-strong);
}

:root[data-theme="dark"] .nav-link:hover,
:root[data-theme="dark"] .theme-button:hover {
    background: var(--surface-soft);
    color: var(--ink);
    transform: translateY(-1px);
}

:root[data-theme="dark"] .reading-progress {
    background: linear-gradient(90deg, var(--accent), var(--accent-strong));
    box-shadow: none;
}

:root[data-theme="dark"] .writing-hero h2::before,
:root[data-theme="dark"] .players-hero h2::before,
:root[data-theme="dark"] .trending-hero h2::before,
:root[data-theme="dark"] .hero .eyebrow::before {
    content: none;
}

:root[data-theme="dark"] .writing-hero,
:root[data-theme="dark"] .writing-list-entry,
:root[data-theme="dark"] .writing-list-head,
:root[data-theme="dark"] .writing-sidebar-card,
:root[data-theme="dark"] .writing-series,
:root[data-theme="dark"] .players-hero,
:root[data-theme="dark"] .player-card,
:root[data-theme="dark"] .trending-hero,
:root[data-theme="dark"] .trending-card,
:root[data-theme="dark"] .essay-card,
:root[data-theme="dark"] .hero,
:root[data-theme="dark"] .article-section,
:root[data-theme="dark"] .article-meta-card,
:root[data-theme="dark"] .article-cover-shell {
    border-radius: var(--radius-lg);
    background: var(--surface);
    box-shadow: var(--shadow);
}

:root[data-theme="dark"] .article-cover-shell {
    min-height: 0;
    background:
        radial-gradient(circle at 12% 18%, rgba(106, 171, 134, 0.14), transparent 28%),
        radial-gradient(circle at 84% 22%, rgba(240, 238, 229, 0.08), transparent 24%),
        linear-gradient(135deg, rgba(16, 16, 14, 0.98) 0%, rgba(24, 28, 24, 0.96) 100%);
}

:root[data-theme="dark"] .article-cover-shell::before {
    content: none;
}

:root[data-theme="dark"] .article-cover-shell .article-cover-image,
:root[data-theme="dark"] .article-cover-shell .article-cover-grid,
:root[data-theme="dark"] .article-cover-shell .article-cover-beam,
:root[data-theme="dark"] .article-cover-shell .article-cover-vignette {
    display: block;
}

:root[data-theme="dark"] .article-cover-shell .article-panel {
    grid-template-columns: minmax(0, 1.52fr) minmax(248px, 0.48fr);
    background: var(--cover-panel-bg, rgba(255, 255, 255, 0.06));
    border-color: var(--line);
    backdrop-filter: blur(8px);
}

:root[data-theme="dark"] .article-cover-shell .article-panel h2 {
    color: var(--ink);
    font-family: var(--heading-font);
    font-size: clamp(1.75rem, 2.6vw, 2.4rem);
    line-height: 1.12;
    text-shadow: none;
}

:root[data-theme="dark"] .article-section h3::before {
    content: none;
}

:root[data-theme="dark"] .tag-filter-link,
:root[data-theme="dark"] .writing-sidebar-link,
:root[data-theme="dark"] .writing-tag-cloud-link {
    border-radius: 999px;
    border: 1px solid var(--line);
    background: var(--surface-soft);
    font-family: var(--body-font);
    font-size: 13px;
    letter-spacing: normal;
    text-transform: none;
}

:root[data-theme="dark"] .tag-filter {
    gap: 10px;
    border: 0;
    background: transparent;
    width: auto;
}

/* 终端：绿色磷光 CRT，等宽字体、网格底、硬边框 */
:root[data-theme="terminal"] body {
    background: var(--body-bg);
}

:root[data-theme="terminal"] body::after {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    opacity: 0.08;
    background: repeating-linear-gradient(
        0deg,
        transparent 0,
        transparent 2px,
        rgba(103, 255, 148, 0.18) 2px,
        rgba(103, 255, 148, 0.18) 3px
    );
}

:root[data-theme="terminal"] .container {
    position: relative;
    z-index: 1;
}

:root[data-theme="terminal"] .site-header {
    backdrop-filter: none;
    background: var(--header-bg);
    border-bottom: 1px solid var(--line-strong);
    box-shadow: none;
}

:root[data-theme="terminal"] .brand-mark,
:root[data-theme="terminal"] .brand-sub,
:root[data-theme="terminal"] h1,
:root[data-theme="terminal"] h2,
:root[data-theme="terminal"] h3,
:root[data-theme="terminal"] h4 {
    font-family: var(--heading-font);
}

:root[data-theme="terminal"] .brand-mark::before,
:root[data-theme="terminal"] .brand-sub::before {
    content: none;
}

:root[data-theme="terminal"] .brand-mark {
    color: var(--accent-strong);
    text-shadow: 0 0 14px rgba(103, 255, 148, 0.24);
}

:root[data-theme="terminal"] .nav-links,
:root[data-theme="terminal"] .theme-switcher {
    border: 1px solid var(--line);
    background: rgba(4, 14, 7, 0.72);
    gap: 0;
}

:root[data-theme="terminal"] .nav-link,
:root[data-theme="terminal"] .theme-button,
:root[data-theme="terminal"] .nav-toggle {
    border: 0;
    border-right: 1px solid var(--line);
    border-radius: 0;
    font-family: var(--mono-font);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
}

:root[data-theme="terminal"] .nav-link:last-child,
:root[data-theme="terminal"] .theme-button:last-child {
    border-right: 0;
}

:root[data-theme="terminal"] .nav-link.is-active,
:root[data-theme="terminal"] .theme-button.is-active {
    background: rgba(103, 255, 148, 0.12);
    color: var(--accent-strong);
    box-shadow: inset 0 0 0 1px rgba(103, 255, 148, 0.18);
}

:root[data-theme="terminal"] .reading-progress {
    background: linear-gradient(90deg, rgba(103, 255, 148, 0.72), rgba(168, 255, 192, 0.92));
    box-shadow: 0 0 16px rgba(103, 255, 148, 0.35);
}

:root[data-theme="terminal"] .writing-hero h2::before,
:root[data-theme="terminal"] .players-hero h2::before,
:root[data-theme="terminal"] .trending-hero h2::before,
:root[data-theme="terminal"] .hero .eyebrow::before {
    content: "> ";
    color: var(--accent-strong);
}

:root[data-theme="terminal"] .writing-hero,
:root[data-theme="terminal"] .writing-list-entry,
:root[data-theme="terminal"] .writing-list-head,
:root[data-theme="terminal"] .writing-sidebar-card,
:root[data-theme="terminal"] .writing-series,
:root[data-theme="terminal"] .players-hero,
:root[data-theme="terminal"] .player-card,
:root[data-theme="terminal"] .trending-hero,
:root[data-theme="terminal"] .trending-card,
:root[data-theme="terminal"] .essay-card,
:root[data-theme="terminal"] .article-section,
:root[data-theme="terminal"] .article-meta-card,
:root[data-theme="terminal"] .article-cover-shell {
    border-radius: var(--radius-sm);
    border-color: var(--line-strong);
    background: var(--surface);
    box-shadow: none;
}

:root[data-theme="terminal"] .article-cover-shell {
    min-height: 0;
    background:
        linear-gradient(180deg, rgba(4, 14, 7, 0.98), rgba(3, 12, 6, 0.98)),
        repeating-linear-gradient(
            0deg,
            transparent 0,
            transparent 23px,
            rgba(103, 255, 148, 0.05) 23px,
            rgba(103, 255, 148, 0.05) 24px
        );
}

:root[data-theme="terminal"] .article-cover-shell::before {
    content: "TERM://READ MODE ACTIVE";
    color: rgba(103, 255, 148, 0.72);
    font-family: var(--mono-font);
    font-size: 10px;
    letter-spacing: 0.14em;
}

:root[data-theme="terminal"] .article-cover-shell .article-cover-image,
:root[data-theme="terminal"] .article-cover-shell .article-cover-grid,
:root[data-theme="terminal"] .article-cover-shell .article-cover-beam,
:root[data-theme="terminal"] .article-cover-shell .article-cover-vignette {
    display: block;
}

:root[data-theme="terminal"] .article-cover-shell .article-cover-grid {
    opacity: 0.16;
}

:root[data-theme="terminal"] .article-cover-shell .article-panel {
    grid-template-columns: minmax(0, 1.52fr) minmax(248px, 0.48fr);
    background: rgba(4, 14, 7, 0.72);
    border-color: var(--line);
    backdrop-filter: none;
}

:root[data-theme="terminal"] .article-cover-shell .article-panel h2 {
    color: #cbffd6;
    font-family: var(--heading-font);
    font-size: clamp(1.75rem, 2.6vw, 2.4rem);
    line-height: 1.12;
    text-shadow: 0 0 18px rgba(103, 255, 148, 0.18);
}

:root[data-theme="terminal"] .article-section h3::before {
    content: "> ";
    color: var(--accent-strong);
}

:root[data-theme="terminal"] .tag-filter-link,
:root[data-theme="terminal"] .writing-sidebar-link,
:root[data-theme="terminal"] .writing-tag-cloud-link {
    border-radius: var(--radius-sm);
    border-color: var(--line);
    background: rgba(103, 255, 148, 0.05);
    font-family: var(--mono-font);
    font-size: 11px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

:root[data-theme="terminal"] .tag-filter-link.is-active,
:root[data-theme="terminal"] .writing-sidebar-link.is-active,
:root[data-theme="terminal"] .writing-tag-cloud-link.is-active {
    background: rgba(103, 255, 148, 0.14);
    color: var(--accent-strong);
}

:root[data-theme="terminal"] .tag-filter {
    gap: 0;
    border: 1px solid var(--line);
    background: rgba(4, 14, 7, 0.72);
    width: fit-content;
}