:root {
 color-scheme: light;
 --bg: #ffffff;
 --bg-sub: #fafafa;
 --panel: #ffffff;
 --panel-soft: rgba(255,255,255,0.84);
 --border: rgba(17,17,17,0.08);
 --text: #111111;
 --text-dim: #6b6b6b;
 --text-faint: #9a9a9a;
 --accent: #111111;
 --hover: rgba(17,17,17,0.055);
 --active: rgba(17,17,17,0.08);
 --shadow: 0 1px 2px rgba(0,0,0,0.04);
 --elevated-shadow: 0 22px 70px rgba(15,23,42,0.12);
 --bg-gradient: linear-gradient(180deg, #ffffff 0%, #fafafa 42%, #f4f6fb 100%);
 --sidebar-bg: linear-gradient(180deg, rgba(250,250,250,0.96), rgba(244,246,251,0.92));
 --surface-gradient: linear-gradient(180deg, rgba(255,255,255,0.96), rgba(248,249,252,0.92));
 --topbar-bg: rgba(255,255,255,0.78);
 --input-bg: rgba(255,255,255,0.82);
 --radius: 10px;
 }
 @media (prefers-color-scheme: dark) {
 :root {
 color-scheme: dark;
 --bg: #0b0d14;
 --bg-sub: #070910;
 --panel: #111521;
 --panel-soft: rgba(17,21,33,0.76);
 --border: rgba(220,230,255,0.10);
 --text: #f3f6ff;
 --text-dim: #a5afc3;
 --text-faint: #68748b;
 --accent: #eaf0ff;
 --hover: rgba(255,255,255,0.075);
 --active: rgba(141,166,255,0.16);
 --shadow: 0 18px 55px rgba(0,0,0,0.34);
 --elevated-shadow: 0 28px 90px rgba(0,0,0,0.56);
 --bg-gradient:
   radial-gradient(circle at 18% -12%, rgba(88,111,255,0.22), transparent 32%),
   radial-gradient(circle at 86% 8%, rgba(22,163,184,0.15), transparent 30%),
   linear-gradient(180deg, #111827 0%, #0a0d15 48%, #06070c 100%);
 --sidebar-bg:
   radial-gradient(circle at 20% 0%, rgba(91,141,239,0.15), transparent 34%),
   linear-gradient(180deg, rgba(13,17,28,0.94), rgba(7,9,16,0.96));
 --surface-gradient:
   linear-gradient(180deg, rgba(24,30,46,0.88), rgba(12,15,25,0.82));
 --topbar-bg: rgba(10,13,22,0.70);
 --input-bg: rgba(7,10,18,0.58);
 }
 }
 * { box-sizing: border-box; }
 html, body {
 margin: 0;
 background: var(--bg-gradient);
 background-attachment: fixed;
 color: var(--text);
 font: 14px/1.45 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", system-ui, sans-serif;
 -webkit-font-smoothing: antialiased;
 }
 a { color: inherit; text-decoration: none; }
 button, input { font: inherit; }
 .app {
 display: grid;
 grid-template-columns: 256px 1fr;
 min-height: 100vh;
 }
 .side {
 border-right: 1px solid var(--border);
 padding: 14px 10px;
 background: var(--sidebar-bg);
 backdrop-filter: blur(18px);
 position: sticky;
 top: 0;
 height: 100vh;
 overflow-y: auto;
 }
 .brand {
 display: flex; align-items: center; gap: 10px;
 padding: 6px 8px 14px;
 }
 .brand .dot, .empty-copy .dot {
 width: 18px; height: 18px; border-radius: 50%;
 background: radial-gradient(circle at 30% 30%, #5b8def, #1f3a8a 70%);
 box-shadow: inset 0 0 0 1px rgba(255,255,255,0.15);
 }
 .brand b { font-weight: 600; letter-spacing: -0.01em; }
 .nav { display: flex; flex-direction: column; gap: 2px; }
 .nav a {
 display: flex; align-items: center; gap: 10px;
 padding: 7px 10px; border-radius: 8px;
 color: var(--text); text-decoration: none;
 font-size: 14px;
 }
 .nav a:hover { background: var(--hover); }
 .nav a.active { background: var(--active); }
 .nav a .count { margin-left: auto; color: var(--text-faint); font-variant-numeric: tabular-nums; font-size: 12.5px; }
 .nav a .kbd {
 margin-left: auto; color: var(--text-faint);
 border: 1px solid var(--border); border-radius: 4px;
 font-size: 11px; padding: 0 5px; line-height: 16px;
 }
 .nav svg { width: 16px; height: 16px; opacity: 0.8; flex: 0 0 16px; }
 .section-label {
 text-transform: uppercase;
 font-size: 11px;
 letter-spacing: 0.08em;
 color: var(--text-faint);
 padding: 18px 10px 8px;
 }
 .tags { display: flex; flex-direction: column; gap: 1px; }
 .tag {
 display: flex; align-items: center; gap: 8px;
 padding: 6px 10px; border-radius: 8px;
 color: var(--text); text-decoration: none;
 font-size: 13.5px;
 }
 .tag:hover, .tag.active { background: var(--hover); }
 .tag .hash { color: var(--text-faint); }
 .tag .count { margin-left: auto; color: var(--text-faint); font-variant-numeric: tabular-nums; font-size: 12px; }
 .muted { color: var(--text-faint); }
 main { background: transparent; }
 .topbar {
 position: sticky; top: 0; z-index: 5;
 background: var(--topbar-bg);
 border-bottom: 1px solid var(--border);
 backdrop-filter: blur(18px) saturate(1.2);
 padding: 14px 28px;
 display: flex; align-items: center; gap: 16px;
 }
 .title { display: flex; flex-direction: column; }
 .title h1 { margin: 0; font-size: 18px; font-weight: 600; letter-spacing: -0.01em; }
 .title .sub { color: var(--text-faint); font-size: 12.5px; margin-top: 2px; }
 .top-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
 .quick-url-form { display: flex; align-items: center; gap: 10px; }
 .url-input {
 width: 320px;
 padding: 8px 14px;
 border-radius: 999px;
 border: 1px solid var(--border);
 background: var(--input-bg);
 color: var(--text);
 font-size: 13.5px;
 outline: none;
 }
 .url-input::placeholder { color: var(--text-faint); }
 .icon-btn {
 width: 34px; height: 34px;
 border-radius: 999px;
 border: 1px solid var(--border);
 background: var(--panel-soft);
 display: inline-flex; align-items: center; justify-content: center;
 color: var(--text);
 cursor: pointer;
 }
 .icon-btn.primary {
 background: linear-gradient(180deg, var(--accent), color-mix(in srgb, var(--accent), #000 18%)); color: var(--bg);
 border-color: transparent;
 }
 .icon-btn:hover { background: var(--hover); }
 .icon-btn.primary:hover { opacity: 0.9; background: var(--text); }
 .filter-row {
 display: flex; gap: 6px; padding: 12px 28px 0;
 flex-wrap: wrap;
 }
 .chip {
 font-size: 12.5px; padding: 5px 10px;
 border-radius: 999px; border: 1px solid var(--border);
 background: var(--panel-soft); color: var(--text-dim);
 cursor: pointer;
 }
 .chip.on { background: var(--text); color: var(--bg); border-color: var(--text); }
 .chip:hover { color: var(--text); }
 .chip.on:hover { color: var(--bg); }
 .grid {
 --masonry-columns: 5;
 display: grid;
 grid-template-columns: repeat(var(--masonry-columns), minmax(0, 1fr));
 gap: 14px;
 align-items: start;
 padding: 20px 28px 60px;
 }
 .masonry-col { display: flex; flex-direction: column; gap: 14px; min-width: 0; }
 @media (max-width: 1500px) { .grid { --masonry-columns: 4; } }
 @media (max-width: 1200px) { .grid { --masonry-columns: 3; } }
 @media (max-width: 800px) { .grid { --masonry-columns: 2; } .url-input{ width: 180px; } }
 @media (max-width: 560px) {
 .app { grid-template-columns: 1fr; }
 .side { display: none; }
 .grid { --masonry-columns: 2; padding: 16px; }
 .topbar { padding: 12px 16px; }
 .filter-row { padding: 10px 16px 0; }
 }
 .pin {
 break-inside: avoid;
 margin: 0;
 border-radius: var(--radius);
 overflow: hidden;
 background: transparent;
 border: 0;
 box-shadow: none;
 position: relative;
 cursor: zoom-in;
 }
 .pin img {
 display: block; width: 100%; height: auto;
 background: var(--hover);
 }
 .pin .meta {
 position: absolute; left: 8px; right: 8px; bottom: 8px;
 display: flex; gap: 6px; align-items: center;
 opacity: 0; transition: opacity 120ms ease;
 }
 .pin:hover .meta { opacity: 1; }
 .pin .meta .pill {
 background: rgba(0,0,0,0.55); color: #fff;
 font-size: 11.5px; padding: 3px 8px; border-radius: 999px;
 backdrop-filter: blur(6px);
 overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
 }
 .pin .actions {
 position: absolute; top: 8px; right: 8px;
 display: flex; gap: 6px; opacity: 0; transition: opacity 120ms ease;
 }
 .pin:hover .actions, .pin:focus-within .actions { opacity: 1; }
 .pin .actions button {
 width: 28px; height: 28px; border-radius: 999px;
 background: rgba(0,0,0,0.55); color: #fff; border: none;
 cursor: pointer; display: inline-flex; align-items: center; justify-content: center;
 backdrop-filter: blur(6px);
 }
 .card-menu {
 position: absolute; top: 34px; right: 0; z-index: 6;
 min-width: 142px; padding: 5px;
 border-radius: 10px; background: rgba(0,0,0,0.78); color: #fff;
 border: 1px solid rgba(255,255,255,0.10);
 box-shadow: 0 10px 30px rgba(0,0,0,0.3); backdrop-filter: blur(10px);
 }
 .pin .actions .card-menu-item {
 width: 100%; height: auto; justify-content: flex-start; border-radius: 7px;
 padding: 7px 9px; background: transparent; font-size: 12.5px; white-space: nowrap;
 }
 .pin .actions .card-menu-item:hover { background: rgba(255,255,255,0.12); }
 .pin .actions .card-menu-item.danger { color: #fecaca; }
 .modal-wrap {
 position: fixed; inset: 0; z-index: 50;
 background: rgba(0,0,0,0.45);
 display: none; align-items: center; justify-content: center;
 padding: 20px;
 }
 .modal-wrap.on { display: flex; }
 .modal {
 width: 460px; max-width: 100%;
 background: var(--surface-gradient);
 border: 1px solid var(--border);
 border-radius: 14px;
 padding: 20px;
 box-shadow: var(--elevated-shadow);
 backdrop-filter: blur(18px) saturate(1.1);
 }
 .modal h3 { margin: 0 0 4px; font-size: 16px; font-weight: 600; }
 .modal p { margin: 0 0 14px; color: var(--text-dim); font-size: 13px; }
 .drop {
 border: 1.5px dashed var(--border);
 border-radius: 10px;
 padding: 28px;
 text-align: center;
 color: var(--text-dim);
 font-size: 13px;
 background: var(--input-bg);
 display: block;
 cursor: pointer;
 }
 .drop input { display: none; }
 .drop b { color: var(--text); }
 .modal .row { display: flex; gap: 8px; margin-top: 12px; }
 .modal input[type="text"] {
 flex: 1; padding: 9px 12px; border-radius: 8px;
 border: 1px solid var(--border); background: var(--input-bg);
 color: var(--text); font-size: 13.5px; outline: none;
 }
 .modal .tagpicker {
 display: flex; gap: 6px; flex-wrap: wrap; margin-top: 12px;
 }
 .modal .footer {
 display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px;
 }
 .btn {
 padding: 8px 14px; border-radius: 8px; font-size: 13.5px;
 border: 1px solid var(--border); background: var(--panel-soft); color: var(--text);
 cursor: pointer;
 }
 .btn.primary { background: linear-gradient(180deg, var(--accent), color-mix(in srgb, var(--accent), #000 18%)); color: var(--bg); border-color: transparent; }
 .btn:hover { background: var(--hover); }
 .alert { margin: 12px 28px 0; border-radius: 8px; padding: 8px 12px; border: 1px solid var(--border); }
 .alert.error { background: #fee2e2; color: #7f1d1d; }
 .alert.success { background: #dcfce7; color: #14532d; }
 .empty-pin { min-height: 240px; display: grid; place-items: center; padding: 24px; }
 .empty-copy { display: grid; gap: 8px; place-items: center; text-align: center; color: var(--text-dim); }
 .empty-copy h2 { margin: 0; color: var(--text); font-size: 16px; }
 .empty-copy p { margin: 0; }
 .detail-layout { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 18px; padding: 20px 28px 60px; }
 .detail-image-wrap, .detail-meta { border: 1px solid var(--border); border-radius: 14px; background: var(--surface-gradient); overflow: hidden; box-shadow: var(--shadow); }
 .detail-image { display: block; width: 100%; }
 .detail-meta { padding: 18px; }
 .chips, .row-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
 .chips span { font-size: 12.5px; padding: 5px 10px; border-radius: 999px; border: 1px solid var(--border); color: var(--text-dim); }
 .panel { margin: 20px 28px; background: var(--surface-gradient); border: 1px solid var(--border); border-radius: 14px; padding: 20px; box-shadow: var(--shadow); }
 .login-body { display: grid; place-items: center; min-height: 100vh; }
 .login-card { width: min(400px, 92vw); background: var(--surface-gradient); border: 1px solid var(--border); border-radius: 14px; padding: 20px; box-shadow: var(--elevated-shadow); backdrop-filter: blur(18px) saturate(1.1); }
 .stack-form { display: grid; gap: 10px; }
 .stack-form input { padding: 9px 12px; border-radius: 8px; border: 1px solid var(--border); background: var(--input-bg); color: var(--text); }
.pin-open { display: block; width: 100%; padding: 0; margin: 0; border: 0; outline: 0; background: transparent; cursor: zoom-in; color: inherit; -webkit-tap-highlight-color: transparent; }
.pin-open:focus { outline: 0; }
.pin-open:focus-visible { outline: 2px solid rgba(91,141,239,0.75); outline-offset: 3px; border-radius: var(--radius); }
.grid-sentinel { min-height: 28px; padding: 0 28px 32px; color: var(--text-faint); font-size: 12.5px; text-align: center; }
.lightbox-wrap { position: fixed; inset: 0; z-index: 70; display: none; align-items: center; justify-content: center; padding: 22px; background: rgba(0,0,0,0.62); }
.lightbox-wrap.on { display: flex; }
.lightbox { position: relative; width: min(1180px, 96vw); max-height: 92vh; display: grid; grid-template-columns: minmax(0, 1fr) 340px; overflow: hidden; border: 1px solid var(--border); border-radius: 16px; background: var(--surface-gradient); box-shadow: var(--elevated-shadow); backdrop-filter: blur(18px) saturate(1.08); }
.lightbox-close { position: absolute; top: 10px; right: 10px; z-index: 2; width: 32px; height: 32px; border-radius: 999px; border: 1px solid rgba(255,255,255,0.24); background: rgba(0,0,0,0.52); color: #fff; cursor: pointer; font-size: 22px; line-height: 1; }
.lightbox-image { min-height: 320px; max-height: 92vh; display: grid; place-items: center; background: #050505; }
.lightbox-image img { display: block; max-width: 100%; max-height: 92vh; object-fit: contain; }
.lightbox-meta { max-height: 92vh; overflow: auto; padding: 20px; border-left: 1px solid var(--border); }
.lightbox-meta h3 { margin: 0 34px 4px 0; font-size: 16px; }
.lightbox-sub, .lightbox-original { margin: 0 0 14px; color: var(--text-faint); font-size: 12.5px; overflow-wrap: anywhere; }
.lightbox-meta form { display: grid; gap: 12px; }
.lightbox-meta label { display: grid; gap: 6px; color: var(--text-dim); font-size: 12.5px; }
.lightbox-meta input, .lightbox-meta textarea { width: 100%; border: 1px solid var(--border); border-radius: 8px; background: var(--input-bg); color: var(--text); padding: 9px 10px; outline: none; }
.lightbox-meta textarea { min-height: 120px; resize: vertical; }
@media (max-width: 860px) { .lightbox { grid-template-columns: 1fr; overflow: auto; } .lightbox-image { max-height: 62vh; } .lightbox-image img { max-height: 62vh; } .lightbox-meta { max-height: none; border-left: 0; border-top: 1px solid var(--border); } }
.tag-editor { width: 100%; min-height: 38px; display: flex; flex-wrap: wrap; align-items: center; gap: 6px; padding: 5px 8px; border: 1px solid var(--border); border-radius: 8px; background: var(--input-bg); }
.tag-editor:focus-within { border-color: var(--text-faint); }
.tag-editor-chips { display: contents; }
.tag-chip { display: inline-flex; align-items: center; gap: 5px; max-width: 100%; padding: 4px 8px; border-radius: 999px; border: 1px solid var(--border); background: var(--panel-soft); color: var(--text); font-size: 12.5px; line-height: 1.2; }
.tag-chip button { border: 0; background: transparent; color: var(--text-faint); padding: 0 1px; cursor: pointer; font-size: 14px; line-height: 1; }
.tag-chip button:hover { color: var(--text); }
.tag-editor-input { flex: 1 1 110px !important; min-width: 90px; border: 0 !important; background: transparent !important; padding: 4px 2px !important; color: var(--text); outline: none; }
.lightbox-meta .tag-editor { background: var(--input-bg); }
.lightbox-meta .tag-editor input { border: 0; padding: 4px 2px; }
@media (max-width: 560px) {
 .topbar { display: grid; grid-template-columns: minmax(0, 1fr); align-items: stretch; gap: 10px; }
 .top-right { margin-left: 0; width: 100%; display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: 8px; }
 .quick-url-form { min-width: 0; width: 100%; display: grid; grid-template-columns: minmax(0, 1fr) 34px; gap: 8px; }
 .url-input { width: 100%; min-width: 0; }
 .icon-btn { flex-shrink: 0; }
 .title { min-width: 0; }
 .title h1 { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
 .modal-wrap, .lightbox-wrap { align-items: end; padding: 10px; }
 .modal { width: 100%; max-height: 88vh; overflow: auto; border-radius: 14px 14px 0 0; }
}