/* Deck library presentation. Existing action and drag hooks stay on their elements. */
#decks #deckManager{padding:24px!important;border-radius:24px!important;box-shadow:0 12px 36px #30456b0a!important}
#decks .decks-heading{margin-bottom:20px}
#decks .decks-eyebrow{font-size:10px;font-weight:800;letter-spacing:.15em;color:#637b9d}
#decks .decks-heading h2{margin:7px 0!important;font-size:27px!important;letter-spacing:-.7px;color:#233955}
#decks .decks-heading p{margin:0;font-size:14px;line-height:1.6;color:#687a91}
#decks .decks-create-folder{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px;max-width:600px}
#decks .decks-create-folder input{min-width:0;width:100%;margin:0!important;border-radius:12px!important;font-size:13px!important}
#decks .decks-create-folder .btn{white-space:nowrap;border-radius:12px!important;font-size:12px!important;box-shadow:none!important;padding:10px 12px!important}
#decks .decks-drag-tip{display:flex;gap:7px;align-items:center;margin:12px 0 22px;font-size:11px;line-height:1.5;color:#708198}
#decks .decks-drag-tip span{font-size:17px}
#decks .folder{padding:16px!important;margin:12px 0!important;background:rgba(244,248,253,.72)!important;border:1px solid #dde5f0!important;border-radius:18px!important;box-shadow:none!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important}
#decks .folder-head{gap:14px;align-items:center;flex-wrap:wrap;padding:0 0 12px}
#decks .folder-head>div:first-child{flex:1 1 160px;min-width:0}
#decks .folder-title-row{display:flex;width:100%;gap:8px}
#decks .folder-symbol{display:grid;place-items:center;width:32px;height:32px;flex:0 0 32px;border-radius:10px;background:#e8effa;font-size:17px}
#decks .folder-title{flex:1;font-size:15px;line-height:1.4;color:#2e4564;overflow-wrap:anywhere;min-width:0}
#decks .folder-toggle{margin-left:0;flex:0 0 32px;width:32px;height:36px;background:transparent;color:#6b7f99}
#decks .drop-hint{margin:2px 0 0 40px;font-size:11px;color:#74849b;line-height:1.5}
#decks .folder-head>.actions{flex:0 0 auto;display:flex;flex-wrap:nowrap;gap:6px;width:auto;margin:0!important;padding:0}
#decks .folder-head>.actions>*{flex:0 0 auto}
#decks .folder-children{display:block;padding-left:12px;border-left:1px solid #dbe4f1;margin-left:3px;max-height:none;opacity:1;transform:none;transition:none!important;will-change:auto;overflow:visible;overflow-anchor:none}
#decks .folder-contents{min-height:0;overflow:visible}
#decks .folder-contents>.folder{padding:12px!important;background:rgba(255,255,255,.28)!important;border-radius:14px!important}
#decks .folder.collapsed>.folder-head{padding-bottom:12px}
#decks .folder.collapsed>.folder-children{display:none;max-height:none;opacity:1;transform:none;pointer-events:none;border-left-color:transparent}
#decks #deckManager .deck-tile{animation:none!important}
#decks .deck-tile{padding:16px!important;margin:9px 0!important;border:1px solid #e1e8f2!important;border-radius:16px!important;background:rgba(255,255,255,.9)!important;box-shadow:0 3px 10px #30456b05!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important}
#decks .deck-tile:hover{box-shadow:0 5px 16px #30456b0c!important;border-color:#c9d8ef!important}
#decks .deck-tile>.row{display:grid!important;grid-template-columns:26px minmax(0,1fr);gap:10px;align-items:start!important}
#decks .deck-tile .drag-handle{grid-column:1;grid-row:1;display:grid;place-items:center;align-self:start;width:26px;height:36px;padding:0!important;color:#8796aa;font-size:20px;border-radius:8px}
#decks .deck-tile .drag-handle:hover{background:#edf3fb;color:#416b9e}
#decks .deck-tile .deck-summary{grid-column:2;grid-row:1;overflow:visible!important;min-width:0}
#decks .deck-title{font-size:16px;line-height:1.4;letter-spacing:-.2px;color:#253a56;font-weight:750!important}
#decks .deck-metrics{display:flex;flex-wrap:wrap;gap:5px 7px;align-items:center;margin-top:9px;font-size:11px;color:#6c7e95;line-height:1.5}
#decks .deck-metrics>span{white-space:nowrap;padding:3px 7px;border-radius:6px;background:#f3f6fa}
#decks .deck-metrics>.has-due{background:#edf3ff;color:#4168a8;font-weight:750}
#decks .deck-metrics>.deck-difficulty{background:#fff5e9;color:#976029}
#decks .deck-location{margin-top:8px;font-size:10px;line-height:1.5;color:#8090a5;overflow-wrap:anywhere}
#decks .deck-paused-label{display:inline-block;margin-top:7px;color:#4d7a60;font-size:10px;font-weight:700}
#decks .deck-tile>.row>.actions{grid-column:1 / -1;grid-row:2;display:grid!important;grid-template-columns:minmax(0,1fr) auto auto 38px 38px;gap:7px;width:100%;margin:3px 0 0!important;padding:12px 0 0!important;border-top:1px solid #edf1f6}
#decks .deck-action,#decks .folder-action{height:38px;min-height:38px;min-width:0!important;margin:0!important;padding:7px 10px!important;border-radius:10px!important;font-size:12px!important;font-weight:700;line-height:1!important;box-shadow:none!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important;display:inline-flex;align-items:center;justify-content:center;white-space:nowrap}
#decks .deck-action[data-action="study"]{grid-column:1;grid-row:1;background:#e9f0ff!important;color:#315c9c!important;border-color:#dce6fa!important}
#decks .deck-action[data-action="pause"]{grid-column:2;grid-row:1;background:#f8fafd;color:#60728a;border:1px solid #e2e8f1}
#decks .deck-action[data-action="rename"],#decks .folder-action[data-action="rename"]{width:38px!important;background:#f4f7fb!important;border:1px solid #e5ebf3!important;color:#657c98!important;font-size:20px!important;padding:0!important}
#decks .deck-action[data-action="delete"],#decks .folder-action[data-action="delete"]{width:38px!important;background:#fff4f3!important;color:#b56260!important;border:1px solid #f4e4e2!important;padding:0!important}
#decks .deck-action[data-action="share"]{grid-column:3;grid-row:1;gap:4px}
#decks .deck-action[data-action="study"],#decks .deck-action[data-action="pause"]{gap:4px}
#decks .deck-action[data-action="rename"]{grid-column:4;grid-row:1}
#decks .deck-action[data-action="delete"]{grid-column:5;grid-row:1}
#decks .folder-action[data-action="subfolder"]{background:#fff!important;color:#536f94!important;border:1px solid #e0e8f3!important}
#decks .study-pause-btn[aria-pressed="true"]{background:#eaf5ee!important;color:#437457!important;border-color:#d4e8dc!important}
#decks .deck-tile.study-paused{background:#f6faf7!important;border-color:#d9e9de!important}
#decks .folder.study-paused{background:#f0f7f2!important;border-color:#d5e5da!important}
#decks .folder.drop-active,#decks .drop-root.drop-active{border-color:#6d99df!important;background:#e9f1ff!important}
#decks .drop-root{border:1px dashed #c6d4e7!important;border-radius:14px!important;padding:16px!important;background:#f6f9fe!important;box-shadow:none!important}
#decks .drop-root b{font-size:13px;color:#607796}
#decks .drop-root .drop-hint{margin:5px 0 0;font-size:11px}
#decks button:focus-visible{outline:3px solid #91b4ea;outline-offset:2px}
@media(min-width:1000px){
  #decks .deck-tile>.row{grid-template-columns:26px minmax(0,1fr) 350px;align-items:center!important}
  #decks .deck-tile>.row>.actions{grid-column:3;grid-row:1;margin:0!important;padding:0!important;border:0}
}
@media(max-width:650px){
  #decks #deckManager{padding:18px 12px!important;border-radius:20px!important}
  #decks .decks-heading{margin-bottom:16px;padding:0 4px}
  #decks .decks-heading h2{font-size:25px!important}
  #decks .decks-drag-tip{margin-bottom:17px;font-size:10px}
  #decks .folder{padding:12px 9px!important}
  #decks .folder-head{gap:10px}
  #decks .folder-head>div:first-child{flex-basis:100%}
  #decks .folder-head>.actions{width:100%;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) 36px 36px;gap:5px}
  #decks .folder-action{font-size:10px!important;padding:7px 5px!important;min-width:0!important;height:36px;min-height:36px}
  #decks .folder-action[data-action="rename"],#decks .folder-action[data-action="delete"]{width:36px!important}
  #decks .folder-children{padding-left:7px;margin-left:0}
  #decks .folder-contents>.folder{padding:10px 6px!important}
  #decks .deck-tile{padding:12px 10px!important;border-radius:14px!important}
  #decks .deck-tile>.row{grid-template-columns:20px minmax(0,1fr);gap:7px}
  #decks .deck-tile .drag-handle{width:20px;height:28px;font-size:18px}
  #decks .deck-title{font-size:14px}
  #decks .deck-metrics{gap:4px;margin-top:7px;font-size:10px}
  #decks .deck-metrics>span{padding:2px 5px}
  #decks .deck-location{font-size:10px}
  #decks .deck-tile>.row>.actions{grid-template-columns:minmax(0,1fr) auto 34px 34px 34px;gap:5px;padding-top:10px!important}
  #decks .deck-action[data-action="share"] .deck-share-label{display:none}
  #decks .folder .deck-action .deck-control-label{display:none}
  #decks .folder .deck-tile>.row>.actions{grid-template-columns:repeat(5,minmax(0,1fr))}
  #decks .folder .deck-tile .deck-action{width:100%!important;box-sizing:border-box;padding:4px!important}
  #decks .deck-action{height:36px;min-height:36px;font-size:11px!important;padding:6px 8px!important}
  #decks .deck-action[data-action="rename"],#decks .deck-action[data-action="delete"]{width:34px!important}
}

@media(max-width:380px){#decks .deck-action .deck-control-label{display:none}}

/* Independent folder colors extend to the last lecture, including nested folders. */
#decks .folder{--folder-accent:#8599b5;--folder-tint:#f5f8fd}
#decks .folder.folder-colored{background:var(--folder-tint)!important;border-color:var(--folder-accent)!important;border-left-width:3px!important}
#decks .folder-colored>.folder-head .folder-symbol{background:var(--folder-accent);box-shadow:inset 0 0 0 32px #ffffffb8}
#decks .folder-colored>.folder-children{border-left-color:var(--folder-accent)}
#decks .folder-colored.collapsed>.folder-children{border-left-color:transparent}
#decks .folder-color-button{flex:0 0 62px;width:62px;gap:5px;padding:0!important;border:1px solid #dce5f0;background:#ffffffb3;color:#536e91;appearance:none;-webkit-appearance:none}
#decks .folder-color-indicator{font-size:17px;line-height:1;color:var(--folder-accent)}
#decks .folder-color-picker{margin:0 0 12px;padding:12px;background:#ffffffd9;border:1px solid #e0e7f1;border-radius:12px}
#decks .folder-color-picker>span{display:block;margin-bottom:8px;font-size:11px;font-weight:750;color:#60748f}
#decks .folder-color-options{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
#decks .folder-color-options>.folder-color-swatch{flex:0 0 36px!important;width:36px!important;height:36px;min-height:36px;padding:0!important;border:3px solid white!important;border-radius:50%!important;background:var(--swatch)!important;color:white!important;font-size:17px!important;box-shadow:0 0 0 1px #dce3ee!important;appearance:none;-webkit-appearance:none}
#decks .folder-color-swatch[aria-pressed="true"]{outline:2px solid var(--swatch);outline-offset:2px}
#decks .folder-color-reset{border:1px solid #dfe6f0;background:#fff;color:#61768f;font-size:11px!important}
#decks .folder-end{display:flex;align-items:center;justify-content:center;gap:6px;min-height:30px;margin:8px 0 0;padding:6px 0;border-top:1px solid var(--folder-accent);color:#56657b;font-size:10px;font-weight:700;overflow-wrap:anywhere}
#decks .folder-end>span{width:6px;height:6px;border-radius:50%;background:var(--folder-accent);flex:0 0 6px}
@media(prefers-reduced-motion:reduce){#decks .folder-children,#decks .folder-toggle .chevron{transition:none!important}}