:root{
  --bg:#f3f4f6;
  --panel:#ffffff;
  --ink:#0a0c12;
  --muted:#667085;
  --line:#dde3ee;
  --brand:#3c69f1;
  --brand-ink:#ffffff;
  --brand-soft:#e8efff;
  --accent:#3c69f1;
  --accent-soft:#e8efff;
  --green:#3c69f1;
  --green-soft:#e8efff;
  --blue:#3c69f1;
  --amber:#3c69f1;
  --red:#b24235;
  --sidebar:#ffffff;
  --field:#ffffff;
  --preview:#edf1f7;
  --shadow:0 18px 40px rgba(10,12,18,.08);
}
[data-theme="dark"]{
  --bg:#0a0c12;
  --panel:#111827;
  --ink:#f3f4f6;
  --muted:#a7b0c0;
  --line:#263142;
  --brand:#3c69f1;
  --brand-ink:#ffffff;
  --brand-soft:#17213a;
  --accent:#3c69f1;
  --accent-soft:#17213a;
  --green:#3c69f1;
  --green-soft:#17213a;
  --blue:#7b9cff;
  --red:#ff8d7f;
  --sidebar:#0f141f;
  --field:#0f1624;
  --preview:#141c2b;
  --shadow:0 20px 46px rgba(0,0,0,.28);
}
*{box-sizing:border-box}
html{background:var(--bg);color:var(--ink)}
body{margin:0;font-family:Poppins,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
button,input,select,textarea{font:inherit}
button{cursor:pointer;border:0}
button:disabled{cursor:wait;opacity:.6}
h1,h2,h3,p{margin-top:0}
h1{font-size:32px;line-height:1.12;margin-bottom:8px;font-weight:700}
h2{font-size:18px;margin-bottom:8px}
p{line-height:1.5;color:var(--muted)}
.icon{width:18px;height:18px;stroke:currentColor;stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.button,.icon-button,.nav{transition:background .15s,border-color .15s,transform .15s}
.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;border:1px solid var(--line);border-radius:8px;background:var(--panel);color:var(--ink);padding:10px 15px;font-size:13px;font-weight:700}
.button:hover,.icon-button:hover,.nav:hover{transform:translateY(-1px)}
.button.primary{background:var(--brand);border-color:var(--brand);color:var(--brand-ink)}
.button.soft{background:var(--brand-soft);border-color:var(--brand-soft);color:var(--green)}
.button.danger,.icon-button.danger{background:#fff5f2;border-color:#efd1ca;color:var(--red)}
[data-theme="dark"] .button.danger,[data-theme="dark"] .icon-button.danger{background:#3a1f25;border-color:#5b3339;color:var(--red)}
.icon-button{width:38px;height:38px;border:1px solid var(--line);border-radius:50%;background:var(--panel);color:var(--ink);display:inline-flex;align-items:center;justify-content:center}
.app-shell{display:grid;grid-template-columns:238px minmax(0,1fr);min-height:100dvh}
.sidebar{border-right:1px solid var(--line);background:var(--sidebar);padding:28px 18px;display:flex;flex-direction:column;gap:10px;position:sticky;top:0;height:100dvh}
.brand{display:flex;align-items:center;margin-bottom:24px}
.orvann-logo{display:flex;align-items:center;gap:11px;min-width:0}
.orvann-mark{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;background:var(--brand);color:var(--brand-ink);box-shadow:inset 0 0 0 1px rgba(255,255,255,.1)}
.orvann-mark svg{width:30px;height:30px;fill:none;stroke:currentColor;stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.orvann-mark svg circle{stroke:var(--accent)}
.orvann-word{display:grid;gap:1px;min-width:0}
.orvann-word b{font-size:17px;line-height:1;letter-spacing:0;color:var(--ink)}
.orvann-word small{font-size:9px;line-height:1.2;color:var(--muted);font-weight:700;text-transform:uppercase}
.nav{display:flex;align-items:center;gap:10px;min-height:44px;padding:10px 12px;border-radius:8px;background:transparent;color:var(--muted);text-align:left;font-size:13px;font-weight:700}
.nav.active{background:var(--green-soft);color:var(--green)}
.nav:last-child{margin-top:auto}
.workspace{padding:34px 40px 56px;max-width:1420px;width:100%;margin:0 auto}
.heading{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;margin-bottom:22px}
.heading p{font-size:13px;margin:0}
.actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.notice{border:1px solid var(--line);background:var(--panel);padding:13px 15px;border-radius:8px;font-size:13px;margin-bottom:18px}
.notice.danger{border-color:#eaccc5;background:#fff7f4;color:var(--red)}
[data-theme="dark"] .notice.danger{border-color:#5b3339;background:#2c1c22}
.drop-zone{display:flex;justify-content:space-between;align-items:center;gap:16px;border:1px dashed color-mix(in srgb,var(--brand) 40%,var(--line));background:var(--panel);border-radius:8px;padding:24px;margin-bottom:18px}
.drop-zone.dragging{border-color:var(--accent);background:var(--accent-soft)}
.drop-zone.disabled{opacity:.68;background:var(--preview);border-style:solid}
.drop-zone>div{display:flex;align-items:center;gap:12px;min-width:0}
.drop-zone strong{display:block}
.drop-zone span{display:block;color:var(--muted);font-size:12px;margin-top:2px}
.upload-list{display:grid;gap:8px;margin-bottom:18px}
.upload-row{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(180px,2fr) 54px;align-items:center;gap:12px;background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:12px}
.upload-row.failed{border-color:#efd1ca;background:#fff8f6}
[data-theme="dark"] .upload-row.failed{border-color:#5b3339;background:#2c1c22}
.upload-row.failed span,.upload-row.failed b{color:var(--red)}
.upload-row.failed .progress span{background:var(--red)}
.upload-row.success{border-color:#dac28e;background:var(--accent-soft)}
.upload-row strong{display:block;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.upload-row span{display:block;color:var(--muted);font-size:11px;margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.upload-row b{text-align:right;font-size:12px}
.progress{height:8px;background:var(--preview);border-radius:999px;overflow:hidden}
.progress span{display:block;height:100%;background:var(--accent)}
.toolbar{display:grid;grid-template-columns:minmax(220px,1fr) 170px 220px;gap:12px;margin:18px 0}
.search{position:relative;display:block}
.search .icon{position:absolute;left:13px;top:13px;color:var(--muted)}
input,select,textarea{width:100%;border:1px solid var(--line);border-radius:8px;background:var(--field);color:var(--ink);min-height:44px;padding:11px 12px}
.search input{padding-left:40px}
textarea{min-height:88px;resize:vertical}
.media-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.media-card{background:var(--panel);border:1px solid var(--line);border-radius:8px;overflow:hidden;box-shadow:var(--shadow);min-width:0}
.media-card{position:relative}
.media-preview{display:block;width:100%;height:170px;background:var(--preview);color:var(--green);padding:0;border-radius:0;overflow:hidden}
.media-preview img,.media-preview video{width:100%;height:100%;object-fit:cover;display:block}
.file-preview{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:var(--preview);color:var(--green)}
.file-preview .icon{width:42px;height:42px}
.file-preview.large{height:280px;border-radius:8px}
.file-preview.large .icon{width:64px;height:64px}
.media-copy{padding:13px 14px 8px;min-width:0}
.media-copy strong{display:block;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.media-copy p{font-size:12px;margin:5px 0;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.media-copy small{display:block;color:var(--muted);font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card-actions{display:flex;gap:7px;padding:10px 12px 13px;border-top:1px solid var(--line)}
.card-actions .icon-button{width:34px;height:34px}
.media-select{position:absolute;top:10px;left:10px;z-index:2;margin:0}
.media-select input{position:absolute;opacity:0;pointer-events:none}
.media-select span{display:block;width:24px;height:24px;border-radius:7px;border:2px solid #fff;background:rgba(255,255,255,.82);box-shadow:0 4px 14px rgba(0,0,0,.18)}
.media-select input:checked+span{background:var(--accent);border-color:var(--accent)}
.media-select input:checked+span::after{content:"";display:block;width:11px;height:6px;border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg);margin:6px 0 0 5px}
.bulk-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;border:1px solid var(--line);background:var(--panel);border-radius:8px;padding:12px;margin-bottom:18px}
.bulk-bar label{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--ink)}
.bulk-bar input{width:auto;min-height:0}
.bulk-bar span{color:var(--muted);font-size:12px;margin-right:auto}
.empty{grid-column:1/-1;text-align:center;border:1px solid var(--line);background:var(--panel);border-radius:8px;padding:50px 20px;color:var(--muted)}
.empty .icon{width:38px;height:38px;margin-bottom:10px;color:var(--green)}
.load-more{text-align:center;margin-top:20px}
.login{min-height:100dvh;display:flex;align-items:center;justify-content:center;padding:24px}
.login-panel{position:relative;width:min(430px,100%);background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);padding:30px}
.login-theme{position:absolute;right:24px;top:24px}
.login-panel h1{margin:24px 0 22px}
.login-panel label,dialog label{display:block;color:var(--muted);font-size:12px;font-weight:700;margin-bottom:14px}
.login-panel input,dialog input,dialog textarea{margin-top:7px;font-weight:500;color:var(--ink)}
dialog{border:1px solid var(--line);border-radius:8px;padding:0;width:min(980px,calc(100% - 26px));max-height:92dvh;background:var(--panel);color:var(--ink);box-shadow:0 28px 90px rgba(10,20,14,.28)}
dialog::backdrop{background:rgba(18,29,23,.55)}
#folder-dialog{width:min(430px,calc(100% - 26px))}
#confirm-dialog{width:min(450px,calc(100% - 26px))}
.small-dialog{margin:0}
.dialog-head{display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line);padding:18px 20px}
.dialog-head h2{font-size:17px;margin:0;overflow-wrap:anywhere}
.dialog-body{padding:20px;max-height:calc(92dvh - 76px);overflow:auto}
.details-grid{display:grid;grid-template-columns:minmax(260px,.9fr) minmax(0,1.1fr);gap:18px;margin-bottom:18px}
.details-preview{background:var(--preview);border-radius:8px;overflow:hidden;min-height:280px}
.details-preview img,.details-preview video{width:100%;height:100%;max-height:420px;object-fit:contain;display:block}
.meta{display:grid;grid-template-columns:120px minmax(0,1fr);gap:10px 14px;margin:0;font-size:12px}
.meta dt{color:var(--muted);font-weight:700}
.meta dd{margin:0;min-width:0;overflow-wrap:anywhere;display:flex;align-items:center;gap:8px}
.meta code{font-family:ui-monospace,Consolas,monospace;font-size:11px;line-height:1.45}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 14px}
.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}
.confirm-message{font-size:13px;margin:0;color:var(--muted)}
#toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(12px);background:var(--brand);color:var(--brand-ink);border-radius:8px;padding:12px 16px;font-size:13px;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:all .18s;z-index:20}
#toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.offline{min-height:100dvh;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;padding:30px}
@media(max-width:1180px){
  .media-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media(max-width:900px){
  .app-shell{display:block}
  .sidebar{position:static;height:auto;flex-direction:row;align-items:center;padding:14px 16px}
  .brand{margin:0 auto 0 0}
  .nav{min-height:40px}
  .nav.active{display:none}
  .workspace{padding:24px 18px 40px}
  .heading{display:block}
  .heading .actions{margin-top:14px}
  .toolbar{grid-template-columns:1fr 150px}
  #folder-filter{grid-column:1/-1}
  .media-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .details-grid{grid-template-columns:1fr}
}
@media(max-width:620px){
  h1{font-size:26px}
  .drop-zone{display:block;text-align:left}
  .drop-zone .button{margin-top:14px;width:100%}
  .upload-row{grid-template-columns:1fr}
  .upload-row b{text-align:left}
  .bulk-bar{display:grid}
  .bulk-bar span{margin-right:0}
  .toolbar{grid-template-columns:1fr}
  .media-grid{grid-template-columns:1fr}
  .media-preview{height:210px}
  .form-grid{grid-template-columns:1fr}
  .meta{grid-template-columns:1fr}
  .dialog-actions{display:grid}
  .dialog-actions .button{width:100%}
}