/* ============================================================
   SHAOWENHAO — Personal Photo Blog
   Light · Clean · Minimal
   Responsive: PC / Tablet / Mobile
   ============================================================ */

/* --- CSS Variables --- */
:root {
    --color-bg:        #fafaf9;
    --color-surface:   #ffffff;
    --color-card:      #ffffff;
    --color-text:      #1d1d20;
    --color-text-soft: #6e6e75;
    --color-text-muted:#9c9ca3;
    --color-accent:    #2c2c32;
    --color-border:    #e6e6ea;
    --color-border-sub:#efeff2;
    --color-danger:    #d94040;
    --radius-card:     10px;
    --radius-btn:      7px;
    --max-width:       1280px;
    --gap-grid:        24px;
    --font-stack:      -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
                       "Helvetica Neue", Arial, "Noto Sans SC", "PingFang SC",
                       "Microsoft YaHei", sans-serif;
    --transition-fast: 0.18s ease;
}

/* --- Dark Theme Variables --- */
[data-theme="dark"] {
    --color-bg:        #1a1a1e;
    --color-surface:   #252528;
    --color-card:      #252528;
    --color-text:      #e4e4e9;
    --color-text-soft: #b0b0b8;
    --color-text-muted:#787880;
    --color-accent:    #e8e8ee;
    --color-border:    #3a3a40;
    --color-border-sub:#2e2e33;
    --color-danger:    #e05555;
}

/* Dark mode — hardcoded color overrides */
[data-theme="dark"] .site-header {
    background: rgba(26, 26, 30, 0.84);
}
[data-theme="dark"] .card-image-wrap,
[data-theme="dark"] .skeleton-card-img {
    background: #1e1e22;
}
[data-theme="dark"] .card-shimmer {
    background: #2a2a30;
}
[data-theme="dark"] .card-shimmer::after {
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.06) 40%,
        transparent 60%
    );
}
[data-theme="dark"] .skeleton-card-img::after {
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.04) 40%,
        transparent 60%
    );
}
[data-theme="dark"] .skeleton-line {
    background: #2e2e34;
}
[data-theme="dark"] .lightbox-overlay {
    background: rgba(20, 20, 24, 0.96);
}
[data-theme="dark"] .lb-pulse-bar {
    background: var(--color-border);
}
[data-theme="dark"] ::selection {
    background: rgba(255, 255, 255, 0.12);
    color: var(--color-text);
}
[data-theme="dark"] .search-highlight {
    background: #5a4a00;
    color: #ffe680;
}
[data-theme="dark"] .draft-notice {
    background: #2a2410;
    border-color: #5a4a00;
}
[data-theme="dark"] .draft-notice-text {
    color: #e0c860;
}
[data-theme="dark"] .draft-notice-discard {
    color: #e0c860;
    border-color: #7a6a20;
}
[data-theme="dark"] .draft-notice-discard:hover {
    background: #3a3410;
    color: #f0d870;
}
[data-theme="dark"] .btn-primary {
    color: #1a1a1e;
}
[data-theme="dark"] .btn-primary:hover {
    background: #d0d0d8;
}
[data-theme="dark"] .btn-danger {
    color: #1a1a1e;
}
[data-theme="dark"] .btn-danger:hover {
    background: #f07070;
}
[data-theme="dark"] .toast--success {
    background: #1a2a1e;
    color: #8fdfa0;
    border-color: #2a4a30;
}
[data-theme="dark"] .toast--error {
    background: #2a1818;
    color: #f09090;
    border-color: #4a2828;
}
[data-theme="dark"] .article-content pre {
    background: #1e1e24;
    border-color: var(--color-border);
}
[data-theme="dark"] .article-content code {
    background: #1e1e24;
}
[data-theme="dark"] .article-content pre code {
    background: none;
}
[data-theme="dark"] .article-content tr:nth-child(even) td {
    background: rgba(255, 255, 255, 0.02);
}
[data-theme="dark"] .article-content img:not([src]),
[data-theme="dark"] .article-content img[src=""],
[data-theme="dark"] .article-content img[loading="lazy"] {
    background: #2a2a32;
}
[data-theme="dark"] .article-content-spinner {
    border-color: var(--color-border-sub);
    border-top-color: var(--color-accent);
}

/* --- Smooth theme transition on root elements --- */
html {
    transition: background-color 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}
body {
    transition: background-color 0.45s cubic-bezier(0.4, 0, 0.2, 1),
                color 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Extend smooth transition to key surfaces */
.site-header,
.site-footer,
.photo-card,
.article-card,
.modal-overlay,
.key-modal,
.upload-modal,
.publish-modal,
.drawer,
.lightbox-overlay,
.skeleton-card,
.card-image-wrap,
.card-shimmer,
.skeleton-card-img,
.search-input,
.header-search,
.btn,
.key-input,
.publish-title-input,
.publish-content-input,
.upload-form input[type="file"],
.back-to-top,
.back-to-title,
.toast {
    transition: background-color 0.45s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.45s cubic-bezier(0.4, 0, 0.2, 1),
                color 0.35s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Prevent iOS Safari auto-zoom: all inputs must have font-size ≥ 16px.
   Using a separate rule so it overrides any smaller per-element sizes.
   On mobile viewports we bump specificity to beat any per-element
   selectors (e.g. .search-input, .key-input) that set smaller sizes.   */
@media (max-width: 640px) {
    input, textarea, select, button {
        font-size: 16px !important;
    }
}

/* Desktop baseline — still prevent accidental zoom on tablet/hybrid devices */
input, textarea, select, button {
    font-size: 16px;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-stack);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
}

a {
    color: var(--color-text-soft);
    text-decoration: none;
    transition: color var(--transition-fast);
}
a:hover { color: var(--color-accent); }

img { max-width: 100%; display: block; }

::selection {
    background: rgba(0, 0, 0, 0.08);
    color: var(--color-text);
}

/* ============================================================
   Logo Watermark — centered, subtle, non-interfering
   ============================================================ */
.logo-watermark {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-watermark img {
    width: min(360px, 46vw);
    height: auto;
    opacity: 0.045;
    user-select: none;
    -webkit-user-drag: none;
}

/* Dark mode — boost visibility: invert dark logo to light, raise opacity */
[data-theme="dark"] .logo-watermark img {
    opacity: 0.065;
    filter: invert(0.88) brightness(1.1);
}

/* ============================================================
   Header — minimal, clean
   ============================================================ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(250, 250, 249, 0.82);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--color-border-sub);
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 15px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Logo wrapper — positioning context for the hover bubble */
.logo-wrap {
    position: relative;
    display: flex;
    align-items: center;
    cursor: default;
}
.logo-wrap:hover { color: inherit; }

.site-brand .logo {
    width: 34px;
    height: 34px;
    border-radius: 7px;
    object-fit: contain;
    cursor: default;
    position: relative;
    z-index: 1;
}

.site-brand .site-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 0.07em;
}

.site-nav {
    display: flex;
    gap: 4px;
}

.site-nav a {
    padding: 6px 16px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-soft);
    border-radius: 6px;
    transition: all var(--transition-fast);
}
.site-nav a:hover {
    color: var(--color-accent);
    background: rgba(0, 0, 0, 0.04);
}

/* Upload trigger button (header) */
.btn-upload-trigger {
    padding: 6px 16px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-soft);
    border-radius: 6px;
    border: none;
    background: none;
    cursor: pointer;
    font-family: var(--font-stack);
    transition: all var(--transition-fast);
}
.btn-upload-trigger:hover {
    color: var(--color-accent);
    background: rgba(0, 0, 0, 0.04);
}

/* ============================================================
   Theme Toggle Button — text label "白天" / "夜间"
   ============================================================ */
.theme-toggle-btn {
    padding: 6px 14px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-soft);
    border-radius: 6px;
    border: none;
    background: none;
    cursor: pointer;
    font-family: var(--font-stack);
    flex-shrink: 0;
    margin-left: 2px;
    transition: all var(--transition-fast);
    outline: none;
    white-space: nowrap;
}
.theme-toggle-btn:hover {
    color: var(--color-accent);
    background: rgba(0, 0, 0, 0.04);
}
.theme-toggle-btn:focus-visible {
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.08);
}

/* Brief press feedback */
.theme-toggle-btn.switching {
    transform: scale(0.92);
    transition: transform 0.15s ease;
}

/* ============================================================
   Theme Transition Overlay — subtle dim flash on switch
   ============================================================ */
.theme-transition-overlay {
    position: fixed;
    inset: 0;
    z-index: 99999;
    pointer-events: none;
    background: rgba(0, 0, 0, 0.06);
    opacity: 0;
    transition: opacity 0.08s ease;
}
.theme-transition-overlay.active {
    opacity: 1;
}

/* ============================================================
   Header Search
   ============================================================ */
.header-search {
    display: flex;
    align-items: center;
    gap: 0;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 0 4px 0 12px;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    max-width: 280px;
    flex: 1;
    margin: 0 18px;
}
.header-search:focus-within {
    border-color: var(--color-text-soft);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.03);
}

.search-icon {
    font-size: 0.8rem;
    opacity: 0.4;
    flex-shrink: 0;
    line-height: 1;
}

.search-input {
    flex: 1;
    min-width: 0;
    border: none;
    background: none;
    padding: 8px 8px;
    font-size: 0.82rem;
    color: var(--color-text);
    font-family: var(--font-stack);
    outline: none;
}
.search-input::placeholder {
    color: var(--color-text-muted);
    opacity: 0.7;
}

.search-clear {
    display: none;
    flex-shrink: 0;
    width: 26px;
    height: 26px;
    border: none;
    background: none;
    color: var(--color-text-muted);
    font-size: 1.1rem;
    cursor: pointer;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}
.search-clear.visible {
    display: flex;
}
.search-clear:hover {
    background: rgba(0, 0, 0, 0.06);
    color: var(--color-text);
}

/* No search results */
.search-empty {
    text-align: center;
    padding: 60px 20px;
    display: none;
}
.search-empty.visible {
    display: block;
}
.search-empty-icon {
    font-size: 2.5rem;
    margin-bottom: 14px;
    opacity: 0.2;
}
.search-empty p {
    font-size: 0.9rem;
    color: var(--color-text-soft);
    margin-bottom: 4px;
}
.search-empty-hint {
    font-size: 0.8rem !important;
    color: var(--color-text-muted) !important;
}

/* ============================================================
   Main Layout
   ============================================================ */
.site-main {
    flex: 1;
    max-width: var(--max-width);
    width: 100%;
    margin: 0 auto;
    padding: 36px 28px 72px;
    position: relative;
    z-index: 1;
}

/* ============================================================
   Modal Overlays — shared structure
   ============================================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.22s ease;
}
.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* ============================================================
   Upload Modal
   ============================================================ */

.upload-modal {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    padding: 30px 28px 24px;
    width: 440px;
    max-width: 92vw;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.1);
}

.upload-modal-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 20px;
    text-align: center;
}

.upload-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.upload-modal-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 4px;
}

.upload-modal-actions .btn {
    flex: 1;
}

.upload-form input[type="file"] {
    flex: 1;
    min-width: 200px;
    padding: 9px 14px;
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-btn);
    font-size: 0.85rem;
    cursor: pointer;
    background: var(--color-bg);
    color: var(--color-text-soft);
    transition: border-color var(--transition-fast);
    font-family: var(--font-stack);
}
.upload-form input[type="file"]:hover {
    border-color: var(--color-text-muted);
}
.upload-form input[type="file"]::file-selector-button {
    background: var(--color-border-sub);
    border: none;
    color: var(--color-text);
    padding: 4px 12px;
    border-radius: 4px;
    margin-right: 10px;
    cursor: pointer;
    font-family: var(--font-stack);
    font-size: 0.8rem;
    transition: background var(--transition-fast);
}
.upload-form input[type="file"]::file-selector-button:hover {
    background: var(--color-border);
}

/* Key input */
.key-input {
    width: 170px;
    padding: 9px 13px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-btn);
    font-size: 0.85rem;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-stack);
    transition: border-color var(--transition-fast);
}
.key-input:focus {
    outline: none;
    border-color: var(--color-text-soft);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.04);
}
.key-input::placeholder {
    color: var(--color-text-muted);
}

.key-input--modal {
    width: 100%;
    padding: 11px 16px;
    font-size: 0.92rem;
    text-align: center;
}

.cap-warning {
    margin-top: 10px;
    font-size: 0.8rem;
    color: #b08830;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 9px 26px;
    border: none;
    border-radius: var(--radius-btn);
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-stack);
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-accent);
    color: #fff;
}
.btn-primary:hover {
    background: #3d3d44;
}
.btn-primary:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-soft);
    border: 1px solid var(--color-border);
}
.btn-secondary:hover {
    background: var(--color-bg);
    color: var(--color-accent);
}

.btn-danger {
    background: var(--color-danger);
    color: #fff;
}
.btn-danger:hover {
    background: #e85555;
}
.btn-danger:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.upload-status {
    margin-top: 14px;
    font-size: 0.82rem;
    min-height: 20px;
}

/* --- Draft notice (inside publish / edit modals) --- */
.draft-notice {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-top: 12px;
    padding: 8px 14px;
    background: #fef9e7;
    border: 1px solid #f9e79f;
    border-radius: 6px;
    font-size: 0.82rem;
}
.draft-notice-text {
    color: #7d6608;
    font-weight: 500;
}
.draft-notice-discard {
    padding: 3px 12px;
    border: 1px solid #d4ac0d;
    border-radius: 4px;
    background: transparent;
    color: #7d6608;
    cursor: pointer;
    font-size: 0.78rem;
    font-family: var(--font-stack);
    transition: all var(--transition-fast);
    white-space: nowrap;
}
.draft-notice-discard:hover {
    background: #f9e79f;
    color: #5a4406;
}
.upload-status.success { color: #3b9b5c; }
.upload-status.error   { color: var(--color-danger); }

/* ============================================================
   Gallery Toolbar
   ============================================================ */
.gallery-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}

.photo-count {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    font-weight: 500;
    letter-spacing: 0.04em;
}

/* ============================================================
   Photo Grid
   ============================================================ */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap-grid);
}

/* ============================================================
   Photo Card
   ============================================================ */
.photo-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    overflow: hidden;
    transition: transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.35s ease;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    transform: translateZ(0);
    backface-visibility: hidden;
    touch-action: manipulation;
    /* Off-screen cards skip rendering — huge first-paint win.
       contain-intrinsic-size gives the browser an estimated height
       so the scrollbar doesn't thrash as cards stream in.       */
    content-visibility: auto;
    contain-intrinsic-size: auto 320px;
}

/* Hover lift — only active after image has loaded */
.photo-card--loaded:hover {
    transform: translateY(-3px) translateZ(0);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
}

/* Paginated cards — hidden until revealed */
.photo-card--hidden {
    display: none;
}

/* Load-more trigger */
.load-more-wrap {
    text-align: center;
    padding: 28px 0 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.load-more-btn {
    min-width: 200px;
}

.load-more-count {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.card-image-wrap {
    position: relative;
    width: 100%;
    padding-top: 75%;
    overflow: hidden;
    background: #f0f0f2;
}

/* Shimmer skeleton — GPU-accelerated animated placeholder */
.card-shimmer {
    position: absolute;
    inset: 0;
    z-index: 0;
    background: #ececf0;
    overflow: hidden;
    transition: opacity 0.35s ease;
}

.card-shimmer::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.55) 40%,
        transparent 60%
    );
    animation: shimmerSlide 1.6s ease-in-out infinite;
    will-change: transform;
}

@keyframes shimmerSlide {
    0%   { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Legacy shimmer for small skeleton text lines (tiny elements, minimal perf impact) */
@keyframes shimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Hide shimmer once image loads */
.card-img.loaded + .card-shimmer,
.card-img[src]:not([src=""]) + .card-shimmer {
    opacity: 0;
    pointer-events: none;
}

.card-image-wrap img {
    position: absolute;
    inset: 0;
    z-index: 1;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.4s ease, transform 0.45s ease;
}

/* Image loaded state */
.card-img.loaded {
    opacity: 1;
}

.photo-card--loaded:hover .card-image-wrap img {
    transform: scale(1.03) translateZ(0);
}

/* Card action button (delete) — top-right of card image */
.card-action-btn {
    position: absolute;
    top: 8px;
    z-index: 10;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.82);
    color: rgba(0, 0, 0, 0.5);
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}
.card-delete-btn  { right: 8px; }

.photo-card:hover .card-action-btn {
    opacity: 1;
}
.card-delete-btn:hover {
    background: var(--color-danger);
    color: #fff;
}

.card-body {
    padding: 13px 18px 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
}

/* Skeleton text line */
.skeleton-line {
    height: 0.75rem;
    border-radius: 4px;
    background: #e8e8ed;
    animation: shimmer 1.8s ease-in-out infinite;
    background-size: 200% 100%;
    width: 60%;
}
.skeleton-line--long { width: 85%; }
.exif-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--color-text-soft);
    line-height: 1.5;
}

.exif-row {
    display: flex;
    align-items: baseline;
    gap: 7px;
    min-width: 0;
}

.exif-row span:last-child {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.exif-icon {
    width: 16px;
    text-align: center;
    flex-shrink: 0;
    opacity: 0.5;
    font-size: 0.72rem;
}

/* ============================================================
   Empty State
   ============================================================ */
.empty-state {
    text-align: center;
    padding: 100px 20px;
    grid-column: 1 / -1;
}

.empty-state .empty-icon {
    font-size: 3.5rem;
    margin-bottom: 18px;
    opacity: 0.2;
}

.empty-state h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-text);
}

.empty-state p {
    font-size: 0.88rem;
    color: var(--color-text-muted);
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border-sub);
    text-align: center;
    padding: 22px 20px;
    font-size: 0.76rem;
    color: var(--color-text-muted);
    letter-spacing: 0.02em;
    line-height: 1.8;
    position: relative;
    z-index: 1;
}

/* ============================================================
   Key-prompt Modal
   ============================================================ */
.key-modal {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    padding: 30px 28px 24px;
    width: 380px;
    max-width: 92vw;
    text-align: center;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.1);
}

.key-modal-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 6px;
}

.key-modal-desc {
    font-size: 0.82rem;
    color: var(--color-text-soft);
    margin-bottom: 4px;
}

.key-modal-target {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-bottom: 16px;
    word-break: break-all;
    font-family: monospace;
}

.key-modal-error {
    font-size: 0.8rem;
    color: var(--color-danger);
    min-height: 20px;
    margin-top: 8px;
    margin-bottom: 2px;
}

.key-modal-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 16px;
}

.key-modal-actions .btn {
    flex: 1;
}

/* ============================================================
   Lightbox
   ============================================================ */
.lightbox-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    /* Prevent double-tap / pinch zoom on the overlay itself */
    touch-action: manipulation;
    overscroll-behavior: contain;
}
.lightbox-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.lightbox-content {
    position: relative;
    max-width: 92vw;
    max-height: 92vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Image area — contains loader + img, stable size */
.lightbox-image-area {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 200px;
    min-height: 150px;
}

.lightbox-image-area img {
    position: relative;
    z-index: 1;
    max-width: 90vw;
    max-height: 74vh;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.08);
    opacity: 0;
    transition: opacity 0.35s ease;
    /* Prevent double-tap / pinch zoom on the image */
    touch-action: manipulation;
    -webkit-user-drag: none;
    user-select: none;
}

.lightbox-image-area img.loaded {
    opacity: 1;
}

.lightbox-info {
    margin-top: 16px;
    color: var(--color-text-soft);
    text-align: center;
    font-size: 0.82rem;
    display: flex;
    gap: 22px;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    min-height: 22px;
    flex-shrink: 0;
}

/* Bottom action row — "View on Map" + "Close" buttons, centered */
.lb-action-row {
    width: 100%;
    text-align: center;
    margin-top: 10px;
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.lb-map-btn,
.lb-close-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 14px;
    font-size: 0.78rem;
    color: var(--color-text-soft);
    border: 1px solid var(--color-border);
    border-radius: 5px;
    text-decoration: none;
    transition: all var(--transition-fast);
    white-space: nowrap;
    cursor: pointer;
    background: transparent;
    font-family: var(--font-stack);
    line-height: 1.5;
}
.lb-map-btn:hover,
.lb-close-btn:hover {
    background: var(--color-bg);
    color: var(--color-accent);
    border-color: var(--color-text-muted);
}

/* Lightbox loader — progress bar, above image */
.lightbox-loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    z-index: 5;
}

.lb-pulse-bar {
    width: 180px;
    height: 3px;
    border-radius: 2px;
    background: var(--color-border);
    overflow: hidden;
    position: relative;
}

.lb-pulse-bar::after {
    content: '';
    position: absolute;
    inset: 0;
    width: 40%;
    background: var(--color-accent);
    border-radius: 2px;
    animation: lbPulse 1.2s ease-in-out infinite;
    will-change: transform;
}

@keyframes lbPulse {
    0%   { transform: translateX(-100%); }
    100% { transform: translateX(450%); }
}


/* ============================================================
   Mobile: Hamburger button & Drawer
   ============================================================ */
.hamburger-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    padding: 6px;
    border: none;
    background: none;
    cursor: pointer;
    border-radius: 6px;
    transition: background var(--transition-fast);
}
.hamburger-btn:hover {
    background: rgba(0, 0, 0, 0.04);
}
.hamburger-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text-soft);
    border-radius: 2px;
    transition: transform 0.25s ease, opacity 0.25s ease;
}
/* Hamburger active → X */
.hamburger-btn.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.hamburger-btn.active span:nth-child(2) {
    opacity: 0;
}
.hamburger-btn.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Drawer overlay */
.drawer-overlay {
    position: fixed;
    inset: 0;
    z-index: 9998;
    background: rgba(0, 0, 0, 0.25);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}
.drawer-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* Drawer panel */
.drawer {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 9999;
    width: 260px;
    max-width: 80vw;
    height: 100vh;
    height: 100dvh;
    background: var(--color-surface);
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.08);
    transform: translateX(100%);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
}
.drawer.active {
    transform: translateX(0);
}

.drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    border-bottom: 1px solid var(--color-border-sub);
}
.drawer-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text);
}
.drawer-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-text-muted);
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: all var(--transition-fast);
}
.drawer-close:hover {
    background: rgba(0, 0, 0, 0.04);
    color: var(--color-text);
}

.drawer-body {
    display: flex;
    flex-direction: column;
    padding: 12px 0;
}

.drawer-link {
    display: block;
    padding: 14px 24px;
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--color-text-soft);
    border: none;
    background: none;
    text-align: left;
    cursor: pointer;
    font-family: var(--font-stack);
    transition: all var(--transition-fast);
    text-decoration: none;
}
.drawer-link:hover {
    background: var(--color-bg);
    color: var(--color-accent);
}
.drawer-upload-btn {
    width: 100%;
}

.drawer-theme-toggle {
    display: block;
    padding: 14px 24px;
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--color-text-soft);
    border: none;
    background: none;
    cursor: pointer;
    font-family: var(--font-stack);
    width: 100%;
    text-align: left;
    transition: all var(--transition-fast);
}
.drawer-theme-toggle:hover {
    background: var(--color-bg);
    color: var(--color-accent);
}

/* Brief press feedback */
.drawer-theme-toggle.switching {
    background: var(--color-bg);
    transition: background 0.15s ease;
}

/* ============================================================
   Responsive: Tablet
   ============================================================ */
@media (max-width: 1024px) {
    .photo-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    :root { --gap-grid: 20px; }

    .header-inner { padding: 13px 22px; }
    .site-main   { padding: 28px 22px 52px; }
}

/* ============================================================
   Responsive: Mobile
   ============================================================ */
@media (max-width: 640px) {
    .photo-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 0 4px;
    }

    :root { --gap-grid: 16px; }

    .header-inner {
        padding: 10px 12px;
        flex-wrap: wrap;
        gap: 8px;
    }
    .site-main   { padding: 22px 12px 44px; }

    .site-brand .logo { width: 28px; height: 28px; }
    .site-brand .site-title { font-size: 1rem; }

    /* Search: full-width on mobile, below brand */
    .header-search {
        order: 3;
        flex: 1 1 100%;
        max-width: 100%;
        margin: 0;
    }

    /* Hide desktop nav, show hamburger */
    .site-nav { display: none; }
    .hamburger-btn { display: flex; }

    .card-body { padding: 13px 15px 15px; }

    .lightbox-info { gap: 12px; font-size: 0.76rem; }

    .logo-watermark img { width: min(280px, 60vw); }
}

/* ============================================================
   Toast notification
   ============================================================ */
.toast {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    z-index: 99999;
    padding: 11px 26px;
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 500;
    font-family: var(--font-stack);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.28s ease, transform 0.28s ease;
    white-space: nowrap;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}
.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}
.toast--success {
    background: #f0faf4;
    color: #2d6a4f;
    border: 1px solid #b7e4c7;
}
.toast--error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

/* ============================================================
   Grid Loader — skeleton cards inside photo grid
   ============================================================ */
.grid-loader {
    display: contents;
}
.grid-loader.hidden {
    display: none;
}

/* Skeleton card mimics .photo-card dimensions */
.skeleton-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    opacity: 1;
    transition: opacity 0.12s ease;
}
.skeleton-card.skeleton-fade-out {
    opacity: 0;
}

.skeleton-card-img {
    width: 100%;
    padding-top: 75%; /* 4:3 ratio, matches .card-image-wrap */
    background: #ececf0;
    overflow: hidden;
    position: relative;
}
.skeleton-card-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.55) 40%,
        transparent 60%
    );
    animation: shimmerSlide 1.6s ease-in-out infinite;
    will-change: transform;
}

.skeleton-card-body {
    padding: 16px 18px 18px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* ============================================================
   Back-to-Top Button
   ============================================================ */
.back-to-top {
    position: fixed;
    bottom: 36px;
    right: 28px;
    z-index: 999;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text-soft);
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    font-family: var(--font-stack);
    line-height: 1;
}
.back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}
.back-to-top:hover {
    background: var(--color-bg);
    color: var(--color-accent);
    border-color: var(--color-text-muted);
}

/* Back-to-title — sibling of back-to-top, positioned above it */
.back-to-title {
    position: fixed;
    bottom: 90px;   /* 36px (back-to-top bottom) + 42px (height) + 12px (gap) */
    right: 28px;
    z-index: 998;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text-soft);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    font-family: var(--font-stack);
    line-height: 1;
}
.back-to-title.visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}
.back-to-title:hover {
    background: var(--color-bg);
    color: var(--color-accent);
    border-color: var(--color-text-muted);
}

/* ============================================================
   Search highlight
   ============================================================ */
.search-highlight {
    background: #fff3b0;
    color: var(--color-text);
    border-radius: 2px;
    padding: 1px 2px;
}

/* ============================================================
   Utility
   ============================================================ */
.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.55s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================================
   Nav active state
   ============================================================ */
.site-nav a.active {
    color: var(--color-accent);
    background: rgba(0, 0, 0, 0.06);
    font-weight: 600;
}

.drawer-link--active {
    color: var(--color-accent) !important;
    font-weight: 600;
    background: rgba(0, 0, 0, 0.04);
}

/* ============================================================
   Article List
   ============================================================ */
.article-list {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

/* ============================================================
   Article Card
   ============================================================ */
.article-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    overflow: hidden;
    transition: box-shadow 0.25s ease, border-color 0.25s ease;
    scroll-margin-top: 74px;
    scroll-margin-top: calc(var(--header-h) + 8px);
}
.article-card:hover {
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

/* <details> / <summary> as expand/collapse */
.article-details summary {
    list-style: none;
    cursor: pointer;
    outline: none;
}
.article-details summary::-webkit-details-marker {
    display: none;
}
.article-details summary::marker {
    display: none;
    content: '';
}

.article-summary {
    padding: 22px 28px 18px;
    transition: background var(--transition-fast);
}
.article-summary:hover {
    background: rgba(0, 0, 0, 0.015);
}

/* Expand indicator arrow */
.article-summary-inner {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}
.article-summary-inner::after {
    content: '▾';
    font-size: 0.75rem;
    color: var(--color-text-muted);
    transition: transform 0.25s ease;
    flex-shrink: 0;
    margin-left: auto;
}
.article-details[open] .article-summary-inner::after {
    transform: rotate(180deg);
}

.article-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.4;
    margin: 0;
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}
.article-title-icon {
    flex-shrink: 0;
    font-size: 1rem;
    line-height: 1;
}

.article-date {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    white-space: nowrap;
}

/* Article hover action buttons (edit / delete) */
.article-actions {
    display: flex;
    gap: 2px;
    opacity: 0;
    transition: opacity var(--transition-fast);
    flex-shrink: 0;
    margin-left: 6px;
}
.article-card:hover .article-actions {
    opacity: 1;
}

.article-action-btn {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: none;
    background: transparent;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    transition: all var(--transition-fast);
    padding: 0;
    line-height: 1;
}

.article-edit-btn {
    color: var(--color-text-muted);
}
.article-edit-btn:hover {
    background: rgba(0, 0, 0, 0.06);
    color: var(--color-accent);
}

.article-delete-btn {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    font-weight: 600;
}
.article-delete-btn:hover {
    background: var(--color-danger);
    color: #fff;
}

.article-excerpt {
    margin-top: 10px;
    font-size: 0.88rem;
    color: var(--color-text-soft);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-content {
    padding: 24px 28px 28px;
    font-size: 1.2rem;
    line-height: 1.875;          /* 1.875 × 19.2px ≈ 36px — ruled lines scale with em */
    color: var(--color-text);
    overflow-x: auto;
    min-height: 80px;
}

/* ============================================================
   Ruled Paper Effect — Chinese letter paper (信纸) style
   Each horizontal line sits exactly at the bottom of a text row.

   Technique: a single-LH-tall gradient "tile" repeats vertically.
   The tile is a 1px line at its bottom, transparent above.
   Starting Y = padding-top so tile 1 covers the first text row.

   line-height 1.875 avoids fractional-pixel drift:
   1.875 × 16px = 30px (integer) — browser rounds background-size
   and text line-height identically, no cumulative misalignment.
   ============================================================ */
.article-content.loaded {
    /* Warm paper tint */
    background-color: #fcfcf7;
    /* Handwriting font — Ma Shan Zheng: natural, expressive */
    font-family: "Ma Shan Zheng", "STKaiti", "KaiTi", "AR PL UKai CN", var(--font-stack);
    /* Single tile: 1px line at the bottom, transparent otherwise */
    background-image:
        linear-gradient(
            to bottom,
            transparent calc(1.875em - 1px),
            rgba(165, 175, 195, 0.28) calc(1.875em - 1px),
            rgba(165, 175, 195, 0.28) calc(1.875em)
        );
    /* Tile is full width, exactly one line-height tall (= 1.875em) */
    background-size: 100% 1.875em;
    /* Start tiles at padding-top, so each tile covers one text row */
    background-position: 0 24px;
    /* Default background-repeat: repeat tiles vertically */
}

/* Solid table cells — cover ruled lines so tables look pasted-on */
.article-content.loaded td {
    background-color: #fcfcf7;
}
.article-content.loaded tr:nth-child(even) td {
    background-color: rgba(0, 0, 0, 0.025);
}

/* Dark mode — muted, subtle lines on a cooler paper tone */
[data-theme="dark"] .article-content.loaded {
    background-color: #1e1f24;
    background-image:
        linear-gradient(
            to bottom,
            transparent calc(1.875em - 1px),
            rgba(120, 135, 160, 0.16) calc(1.875em - 1px),
            rgba(120, 135, 160, 0.16) calc(1.875em)
        );
    background-size: 100% 1.875em;
    background-position: 0 24px;
}
[data-theme="dark"] .article-content.loaded td {
    background-color: #1e1f24;
}
[data-theme="dark"] .article-content.loaded tr:nth-child(even) td {
    background-color: rgba(255, 255, 255, 0.025);
}

/* Article content loader (shown until AJAX fetch completes) */
.article-content-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 32px 0;
    color: var(--color-text-muted);
}
/* Hide loader once content is loaded */
.article-content.loaded .article-content-loader {
    display: none;
}

.article-content-spinner {
    display: inline-block;
    width: 22px;
    height: 22px;
    border: 2px solid var(--color-border-sub);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: articleSpin 0.6s linear infinite;
}
@keyframes articleSpin { to { transform: rotate(360deg); } }

.article-content-loading-text {
    font-size: 0.8rem;
    letter-spacing: 0.04em;
}

/* Images in article content — centered with loading state */
.article-content img {
    display: block;
    max-width: 100%;
    height: auto;
    margin: 1.875em auto;
    border-radius: 6px;
    transition: opacity 0.35s ease;
}
/* Image loading state: subtle background pulse */
.article-content img:not([src]),
.article-content img[src=""],
.article-content img[loading="lazy"] {
    min-height: 120px;
    background: var(--color-border-sub);
    animation: imgLoadingPulse 1.5s ease-in-out infinite;
}
@keyframes imgLoadingPulse {
    0%, 100% { opacity: 0.5; }
    50%      { opacity: 0.8; }
}
.article-content img.loaded {
    animation: imgReveal 0.4s ease both;
}
@keyframes imgReveal {
    from { opacity: 0; transform: scale(0.97); }
    to   { opacity: 1; transform: scale(1); }
}

.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4,
.article-content h5,
.article-content h6 {
    margin-top: 2.25rem;      /* 1 grid unit in rem (matches body line-height) */
    margin-bottom: 2.25rem;
    font-weight: 600;
    color: var(--color-text);
}
/* font-size in em (relative to body fs) + lh tuned so 1 heading line = 1 grid unit */
.article-content h1 { font-size: 1.5em; line-height: 1.25; }    /* 1.875/1.5 */
.article-content h2 { font-size: 1.3em; line-height: 1.4423; }  /* 1.875/1.3 */
.article-content h3 { font-size: 1.1em; line-height: 1.7045; }  /* 1.875/1.1 */
.article-content h4 { font-size: 1em;   line-height: 1.875; }   /* 1.875/1.0 */

.article-content p {
    margin-bottom: 1.875em;  /* exactly 1 grid unit — keeps ruled lines aligned */
    text-indent: 2em;        /* 首行缩进两个汉字 */
}

.article-content table {
    display: table;
    width: 100%;
    border-collapse: collapse;
    margin: 2.25rem 0;
    font-size: 0.88rem;
    table-layout: auto;
}
.article-content th,
.article-content td {
    display: table-cell;
    border: 1px solid var(--color-border);
    padding: 10px 14px;
    text-align: left;
    vertical-align: top;
}
.article-content th {
    background: var(--color-bg);
    font-weight: 600;
    color: var(--color-text);
}
.article-content tr:nth-child(even) td {
    background: rgba(0, 0, 0, 0.015);
}
.article-content a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 3px;
}
.article-content a:hover {
    opacity: 0.7;
}


.article-content pre {
    background: #f4f4f5;
    border: 1px solid var(--color-border-sub);
    border-radius: 8px;
    padding: 16px 20px;
    overflow-x: auto;
    font-size: 0.84rem;
    line-height: 1.6;
    margin: 2.25rem 0;
    font-family: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono",
                 "Cascadia Code", "Consolas", "Courier New", monospace;
}

.article-content code {
    font-family: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono",
                 "Cascadia Code", "Consolas", "Courier New", monospace;
    font-size: 0.88em;
    background: #f4f4f5;
    padding: 2px 6px;
    border-radius: 4px;
}
.article-content pre code {
    background: none;
    padding: 0;
    border-radius: 0;
    font-size: inherit;
}

.article-content blockquote {
    border-left: 3px solid var(--color-border);
    margin: 1.875em 0;
    padding: 0 0 0 16px;
    color: var(--color-text-soft);
}

.article-content ul,
.article-content ol {
    margin: 1.875em 0;
    padding-left: 1.6em;
}
.article-content li {
    margin-bottom: 0;
}

.article-content hr {
    border: none;
    border-top: 1px solid var(--color-border-sub);
    margin: 1.875em 0;
}

.article-content strong {
    font-weight: 600;
    color: var(--color-text);
}

/* ============================================================
   Publish Modal
   ============================================================ */
.publish-modal {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-card);
    padding: 28px 28px 22px;
    width: 600px;
    max-width: 94vw;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.1);
}

.publish-modal-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 18px;
    text-align: center;
}

.publish-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.publish-title-input {
    width: 100%;
    padding: 11px 15px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-btn);
    font-size: 0.95rem;
    font-weight: 500;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-stack);
    transition: border-color var(--transition-fast);
}
.publish-title-input:focus {
    outline: none;
    border-color: var(--color-text-soft);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.04);
}
.publish-title-input::placeholder {
    color: var(--color-text-muted);
    font-weight: 400;
}

.publish-content-input {
    width: 100%;
    padding: 14px 15px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-btn);
    font-size: 0.88rem;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: "SF Mono", "Fira Code", "Consolas", "Courier New", monospace;
    resize: vertical;
    min-height: 260px;
    line-height: 1.7;
    transition: border-color var(--transition-fast);
}
.publish-content-input:focus {
    outline: none;
    border-color: var(--color-text-soft);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.04);
}
.publish-content-input::placeholder {
    color: var(--color-text-muted);
}

.publish-modal-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 4px;
}
.publish-modal-actions .btn {
    flex: 1;
}

/* Article content footer — publish date, right-aligned.
   Must match the ruled-paper grid: font-size and line-height are identical
   to .article-content so the date sits exactly on a horizontal line. */
.article-content-footer {
    margin-top: 1.875em;        /* exactly one grid row */
    padding-top: 0;
    text-align: right;
    font-size: 1.2rem;          /* same as .article-content */
    line-height: 1.875;         /* one full grid row */
}
.article-pub-date {
    font-size: 0.78rem;
    color: var(--color-text-muted);
    letter-spacing: 0.03em;
}

/* ============================================================
   Article Card — divider between summary and content
   ============================================================ */
.article-details[open] .article-summary {
    border-bottom: 1px solid var(--color-border-sub);
    padding-bottom: 16px;
}

/* Article content reveal animation — triggered after lazy load completes */
.article-content.loaded {
    animation: articleContentIn 0.35s cubic-bezier(0.22, 0.61, 0.36, 1) both;
}

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

/* Subtle card emphasis when open */
.article-card:has(.article-details[open]) {
    border-color: var(--color-border);
    box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
    animation: cardOpenPulse 0.5s cubic-bezier(0.22, 0.61, 0.36, 1) both;
}

@keyframes cardOpenPulse {
    0%   { box-shadow: 0 0 0 0 rgba(0, 0, 0, 0); }
    50%  { box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06); }
    100% { box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04); }
}

/* ============================================================
   Responsive — Articles
   ============================================================ */
@media (max-width: 640px) {
    .article-summary {
        padding: 18px 16px 14px;
    }
    .article-content {
        padding: 18px 16px 22px;
        font-size: 1rem;
    }
    /* Override background-position to match mobile padding-top */
    .article-content.loaded {
        background-position: 0 18px;
    }
    [data-theme="dark"] .article-content.loaded {
        background-position: 0 18px;
    }
    /* Heading margins — mobile grid unit = 1.875rem (1rem * 1.875) */
    .article-content h1,
    .article-content h2,
    .article-content h3,
    .article-content h4,
    .article-content h5,
    .article-content h6 {
        margin-top: 1.875rem;
        margin-bottom: 1.875rem;
    }
    .article-content pre {
        margin: 1.875rem 0;
    }
    .article-content table {
        margin: 1.875rem 0;
    }
    .publish-modal {
        padding: 22px 16px 18px;
    }
    .publish-content-input {
        min-height: 200px;
        font-size: 0.84rem;
    }
}