:root{
  --bg:#f4f5f7; --panel:#ffffff; --border:#e2e4e9; --text:#1b1d22; --muted:#6b7280;
  --accent:#3b6ef6; --accent-contrast:#ffffff; --danger:#e6484b; --good:#1e9e5a;
  --shadow: 0 1px 2px rgba(20,20,30,.05), 0 4px 16px rgba(20,20,30,.06);
  --radius:14px; color-scheme: light dark;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#101114; --panel:#1a1c20; --border:#2b2e34; --text:#eef0f3; --muted:#9aa0aa;
    --accent:#5b8bff; --accent-contrast:#0b0d10; --good:#33c17a;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 6px 20px rgba(0,0,0,.35);
  }
}
*{box-sizing:border-box;}
html,body{height:100%;}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;}
a{color:inherit;}
button{font-family:inherit;}
input,select{font-family:inherit;}

.hidden{display:none !important;}

/* ---- login gate ---- */
#loginScreen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;}
.login-card{background:var(--panel);border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow);padding:32px;width:100%;max-width:380px;text-align:center;}
.login-card h1{font-size:20px;margin:0 0 6px;}
.login-card p{color:var(--muted);font-size:13.5px;margin:0 0 20px;}
.login-card input{width:100%;padding:11px 14px;border:1px solid var(--border);border-radius:10px;background:var(--bg);color:var(--text);font-size:14px;margin-bottom:10px;}
.login-error{color:var(--danger);font-size:12.5px;margin-top:4px;min-height:16px;}

/* ---- layout ---- */
header{position:sticky;top:0;z-index:30;background:var(--panel);border-bottom:1px solid var(--border);padding:12px 20px;display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
header h1{font-size:15px;font-weight:700;margin:0 14px 0 0;white-space:nowrap;display:flex;align-items:center;gap:8px;}
header h1 .dot{width:8px;height:8px;border-radius:50%;background:#2ecc71;box-shadow:0 0 0 3px rgba(46,204,113,.15);}
main{padding:18px 20px 60px;max-width:1500px;margin:0 auto;}

.btn{appearance:none;border:1px solid var(--border);background:var(--panel);color:var(--text);padding:9px 14px;border-radius:10px;font-size:13.5px;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:6px;transition:.15s ease;}
.btn:hover{border-color:var(--accent);color:var(--accent);}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-contrast);}
.btn.primary:hover{filter:brightness(1.06);color:var(--accent-contrast);}
.btn:active{transform:scale(.97);}
.btn.small{padding:5px 10px;font-size:12px;}
.btn:disabled{opacity:.5;cursor:not-allowed;}
.btn.danger:hover{border-color:var(--danger);color:var(--danger);}

.view-tabs{display:flex;gap:6px;background:var(--bg);padding:4px;border-radius:11px;border:1px solid var(--border);}
.view-tab{border:none;background:transparent;color:var(--muted);font-size:13px;font-weight:600;padding:7px 12px;border-radius:8px;cursor:pointer;}
.view-tab.active{background:var(--panel);color:var(--accent);box-shadow:var(--shadow);}

.actor-pill{margin-left:auto;display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);}
.actor-pill b{color:var(--text);}
.actor-pill button{border:none;background:transparent;color:var(--accent);cursor:pointer;font-size:12px;font-weight:600;}

/* ---- progress bar ---- */
.progress-wrap{padding:8px 20px 0;}
.progress-label{font-size:11.5px;color:var(--muted);margin-bottom:4px;display:flex;justify-content:space-between;gap:10px;}
.progress-track{height:4px;background:var(--border);border-radius:99px;overflow:hidden;}
.progress-fill{height:100%;width:0%;background:var(--accent);transition:width .2s ease;border-radius:99px;}

/* ---- toolbar ---- */
.toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:18px;}
.toolbar .search{flex:1;min-width:180px;max-width:340px;display:flex;align-items:center;gap:8px;background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:8px 12px;}
.toolbar .search input{border:none;background:transparent;outline:none;color:var(--text);font-size:13.5px;width:100%;}
select{border:1px solid var(--border);background:var(--panel);color:var(--text);padding:8px 10px;border-radius:10px;font-size:13px;cursor:pointer;}
.chips{display:flex;gap:6px;background:var(--bg);padding:4px;border-radius:11px;border:1px solid var(--border);}
.chipbtn{border:none;background:transparent;color:var(--muted);font-size:12.5px;font-weight:600;padding:6px 10px;border-radius:8px;cursor:pointer;}
.chipbtn.active{background:var(--panel);color:var(--text);box-shadow:var(--shadow);}
.toggle{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);cursor:pointer;user-select:none;white-space:nowrap;}
.toggle input{accent-color:var(--accent);}

/* ---- dropzone ---- */
#dropzone{border:2px dashed var(--border);border-radius:16px;padding:28px 20px;text-align:center;color:var(--muted);margin-bottom:20px;transition:.15s ease;}
#dropzone.drag{border-color:var(--accent);background:rgba(59,110,246,.06);color:var(--accent);}
#dropzone strong{color:var(--text);}
#dropzone p{margin:6px 0 0;font-size:13px;}

/* ---- year cards (year-list screen) ---- */
.year-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;}
.year-card{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:18px;cursor:pointer;box-shadow:var(--shadow);transition:transform .12s ease;}
.year-card:hover{transform:translateY(-2px);}
.year-card .yc-year{font-size:24px;font-weight:800;}
.year-card .yc-total{font-size:12px;color:var(--muted);margin-top:2px;}
.year-card .yc-bar{display:flex;height:6px;border-radius:99px;overflow:hidden;margin-top:12px;background:var(--bg);}
.year-card .yc-bar span{height:100%;}
.year-card .yc-stats{display:flex;gap:10px;margin-top:8px;font-size:11px;color:var(--muted);}
.year-card .yc-done-badge{display:inline-block;font-size:10.5px;font-weight:700;color:var(--good);background:rgba(30,158,90,.12);border-radius:6px;padding:2px 7px;margin-top:8px;}

.breadcrumb{display:flex;align-items:center;gap:10px;margin-bottom:16px;font-size:14px;}
.breadcrumb button{border:none;background:transparent;color:var(--accent);font-weight:600;cursor:pointer;font-size:14px;padding:0;}
.breadcrumb .yr{font-weight:800;font-size:20px;}

/* ---- grid / cards ---- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:14px;}
.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .12s ease;}
.card:hover{transform:translateY(-2px);}
.thumb{position:relative;width:100%;aspect-ratio:1/1;background:var(--bg);display:flex;align-items:center;justify-content:center;overflow:hidden;cursor:pointer;}
.thumb img{width:100%;height:100%;object-fit:cover;display:block;}
.pdf-icon,.fallback-icon{width:52px;height:52px;color:var(--muted);}
.badge{position:absolute;top:6px;left:6px;background:rgba(0,0,0,.55);color:#fff;font-size:10px;font-weight:700;padding:3px 6px;border-radius:6px;}
.duration{position:absolute;bottom:6px;right:6px;background:rgba(0,0,0,.6);color:#fff;font-size:10px;font-weight:600;padding:2px 6px;border-radius:5px;}
.keep-badge{position:absolute;bottom:6px;left:6px;font-size:10px;font-weight:700;padding:2px 7px;border-radius:6px;}
.keep-badge.keep{background:rgba(30,158,90,.85);color:#fff;}
.keep-badge.discard{background:rgba(230,72,75,.85);color:#fff;}

.meta{padding:9px 10px 10px;}
.meta .name{font-size:12.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;cursor:text;border-radius:5px;padding:1px 3px;margin:-1px -3px;}
.meta .name:hover{background:var(--bg);}
.meta .name input{width:100%;font:inherit;font-weight:600;border:1px solid var(--accent);border-radius:5px;padding:1px 3px;background:var(--panel);color:var(--text);}
.meta .sub{font-size:10.5px;color:var(--muted);margin-top:2px;display:flex;justify-content:space-between;gap:6px;}
.meta .folder-tag{font-size:10px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:3px;opacity:.85;}
.keep-controls{display:flex;gap:4px;margin-top:7px;}
.kc-btn{flex:1;border:1px solid var(--border);background:var(--bg);color:var(--muted);border-radius:7px;padding:5px 0;font-size:11px;font-weight:700;cursor:pointer;}
.kc-btn.on-keep{background:rgba(30,158,90,.15);border-color:var(--good);color:var(--good);}
.kc-btn.on-discard{background:rgba(230,72,75,.15);border-color:var(--danger);color:var(--danger);}

.empty{text-align:center;padding:60px 20px;color:var(--muted);}
.empty svg{width:48px;height:48px;margin-bottom:14px;opacity:.5;}
.sentinel{grid-column:1/-1;text-align:center;padding:20px;color:var(--muted);font-size:12.5px;}

/* ---- lightbox ---- */
#lightbox{position:fixed;inset:0;background:rgba(10,10,14,.92);display:none;align-items:center;justify-content:center;z-index:100;flex-direction:column;padding:20px;}
#lightbox.open{display:flex;}
.lb-stage{flex:1;width:100%;display:flex;align-items:center;justify-content:center;min-height:0;position:relative;}
.lb-stage img,.lb-stage video{max-width:100%;max-height:100%;border-radius:8px;box-shadow:0 10px 40px rgba(0,0,0,.5);}
.lb-stage iframe{width:min(900px,90vw);height:85vh;border:none;border-radius:8px;background:#fff;}
.lb-bar{width:100%;max-width:1100px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 4px;color:#e7e9ee;}
.lb-info .n{font-size:13.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:60vw;}
.lb-info .s{font-size:11.5px;color:#b6bac2;margin-top:2px;}
.lb-actions{display:flex;gap:8px;flex-shrink:0;}
.lb-actions .btn{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.15);color:#fff;}
.lb-actions .btn:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.16);}
.nav-arrow{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);color:#fff;width:42px;height:42px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;}
.nav-arrow:hover{background:rgba(255,255,255,.2);}
.nav-arrow.prev{left:0;} .nav-arrow.next{right:0;}
.nav-arrow svg{width:18px;height:18px;}

/* ---- timeline ---- */
.timeline-toolbar{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px;flex-wrap:wrap;}
.add-year{display:flex;gap:8px;align-items:center;}
.add-year input{width:110px;border:1px solid var(--border);background:var(--panel);color:var(--text);border-radius:10px;padding:8px 10px;font-size:13px;}
.year-section{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:16px 18px;margin-bottom:16px;box-shadow:var(--shadow);}
.year-section.unassigned-section{border-style:dashed;}
.year-head{display:flex;align-items:center;gap:10px;margin-bottom:10px;flex-wrap:wrap;}
.year-head h2{font-size:19px;margin:0;}
.year-count{font-size:12px;font-weight:700;color:var(--muted);background:var(--bg);border-radius:99px;padding:2px 9px;}
.year-head .spacer{flex:1;}
.events-list{display:flex;flex-direction:column;gap:6px;margin-bottom:10px;}
.event-row{display:flex;align-items:center;gap:8px;font-size:13px;background:var(--bg);border-radius:8px;padding:7px 10px;}
.event-date-badge{font-size:11px;font-weight:700;color:var(--accent);background:rgba(59,110,246,.1);border-radius:6px;padding:2px 7px;white-space:nowrap;}
.event-text{flex:1;}
.event-remove{border:none;background:transparent;color:var(--muted);cursor:pointer;font-size:14px;}
.event-remove:hover{color:var(--danger);}
.event-form{display:flex;gap:6px;margin-bottom:10px;flex-wrap:wrap;align-items:center;}
.event-form input[type=text]{flex:1;min-width:160px;border:1px solid var(--border);border-radius:8px;padding:7px 10px;font-size:13px;background:var(--panel);color:var(--text);}
.event-form select{padding:6px 8px;font-size:12.5px;}
.year-files{display:flex;flex-wrap:wrap;gap:10px;min-height:80px;border-radius:10px;transition:background .12s ease;padding:6px;margin:-6px;}
.year-files.drag-over{background:rgba(59,110,246,.08);outline:2px dashed var(--accent);outline-offset:-2px;}
.mini-tile{width:96px;}
.mini-thumb{position:relative;width:96px;height:96px;border-radius:10px;overflow:hidden;background:var(--bg);cursor:grab;}
.mini-thumb img{width:100%;height:100%;object-fit:cover;}
.mini-thumb .pdf-icon,.mini-thumb .fallback-icon{width:36px;height:36px;}
.mini-name{font-size:10.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:3px;}
.mini-remove{position:absolute;top:3px;right:3px;width:20px;height:20px;border-radius:50%;background:rgba(0,0,0,.55);border:none;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:12px;line-height:1;}
.empty-hint{font-size:12px;color:var(--muted);font-style:italic;padding:10px 4px;}

#folderInput, #repairInput{display:none;}
.hint{font-size:11.5px;color:var(--muted);}
footer{text-align:center;color:var(--muted);font-size:11.5px;padding:20px;}