:root{--accent:#537a5a;--accent2:#7f9f83;--ink:#24302a;--muted:#748078;--paper:#f7f4ec;--card:#fffdf8;--line:#e6e2d7;--danger:#b45454;--shadow:0 12px 34px rgba(38,48,42,.08)}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:#eef0e8}button,input,select,textarea{font:inherit}button{cursor:pointer}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:12px;padding:11px 12px;background:rgba(255,255,255,.9);color:var(--ink);outline:none}input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 13%,transparent)}textarea{resize:vertical}
.image-bg,.video-bg{position:fixed;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;pointer-events:none;display:none}.image-bg.active,.video-bg.active{display:block}.bg-overlay{position:fixed;inset:0;z-index:0;pointer-events:none;background:linear-gradient(120deg,rgba(238,240,232,.68),rgba(245,243,235,.42));backdrop-filter:saturate(.95)}
.sidebar{position:fixed;left:0;top:0;bottom:0;width:230px;z-index:5;padding:20px 14px;background:rgba(31,39,34,.48);backdrop-filter:blur(16px) saturate(1.02);border-right:1px solid rgba(255,255,255,.2);box-shadow:6px 0 30px rgba(0,0,0,.08);display:flex;flex-direction:column}.brand{font-weight:950;font-size:20px;color:#fff;padding:5px 10px 20px;text-shadow:0 2px 8px rgba(0,0,0,.5)}.brand small{font-size:9px;background:rgba(255,255,255,.2);padding:3px 5px;border-radius:7px;vertical-align:top}.sidebar nav{display:flex;flex-direction:column;gap:4px}.sidebar nav button{border:0;background:transparent;color:rgba(255,255,255,.93);font-weight:800;text-align:left;padding:11px 12px;border-radius:12px;text-shadow:0 1px 5px rgba(0,0,0,.62);transition:.18s}.sidebar nav button span{display:inline-block;width:27px}.sidebar nav button:hover{background:rgba(255,255,255,.12)}.sidebar nav button.active{background:color-mix(in srgb,var(--accent) 84%,rgba(0,0,0,.16));color:#fff;box-shadow:0 8px 20px rgba(0,0,0,.12)}.cloud-badge{margin-top:auto;color:#fff;font-size:11px;font-weight:800;background:rgba(0,0,0,.18);padding:9px 10px;border-radius:10px;text-shadow:0 1px 3px rgba(0,0,0,.45)}.cloud-badge.ok{background:rgba(49,103,66,.6)}.cloud-badge.bad{background:rgba(154,68,68,.65)}
.main{position:relative;z-index:2;margin-left:230px;min-height:100vh}.topbar{height:78px;position:sticky;top:0;z-index:4;padding:13px 26px;display:flex;align-items:center;justify-content:space-between;background:rgba(255,253,248,.58);backdrop-filter:blur(18px);border-bottom:1px solid rgba(255,255,255,.4)}.topbar h2{margin:0;font-size:19px}.top-actions{display:flex;gap:8px;align-items:center}.pill,.profile-pill{background:rgba(255,255,255,.72);border:1px solid rgba(255,255,255,.65);padding:8px 11px;border-radius:999px;box-shadow:0 4px 16px rgba(0,0,0,.04)}.profile-pill{display:flex;gap:8px;align-items:center}.profile-pill span{width:25px;height:25px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;font-size:11px}
.page{display:none;padding:24px 26px 50px}.page.active{display:block}.hero{min-height:240px;border-radius:24px;padding:34px;display:flex;justify-content:space-between;align-items:center;color:white;background:linear-gradient(120deg,rgba(50,78,57,.9),rgba(91,118,91,.68)),radial-gradient(circle at 80% 30%,rgba(255,220,180,.32),transparent 30%);box-shadow:var(--shadow)}.hero h1{font-size:32px;max-width:620px;margin:8px 0}.hero p{opacity:.86}.hero-plant{font-size:100px;filter:drop-shadow(0 14px 20px rgba(0,0,0,.2));padding-right:8%}.eyebrow{font-size:10px;font-weight:900;letter-spacing:.18em;opacity:.8}
.grid{display:grid;gap:16px;margin-top:16px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.metrics{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:rgba(255,253,248,.88);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.65);border-radius:18px;padding:18px;box-shadow:var(--shadow)}.card h3{margin:0 0 14px}.metric{display:flex;gap:13px;align-items:center}.metric>span{font-size:28px}.metric b{display:block;font-size:23px}.metric small{color:var(--muted)}.section-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.section-head h3,.section-head p{margin:0}.stack{display:flex;flex-direction:column;gap:9px}.muted{color:var(--muted)}.small{font-size:11px}.center{text-align:center}.row{display:flex;gap:9px;align-items:center;margin:10px 0}.row>*{flex:1}.btn{border:0;border-radius:12px;padding:10px 14px;font-weight:850}.btn.primary{background:var(--accent);color:#fff}.btn.ghost{background:#f0efe8;color:var(--ink);border:1px solid var(--line)}.btn.tiny{padding:7px 10px;font-size:11px}.btn.full{width:100%;margin-top:10px}.link-btn{border:0;background:transparent;color:var(--accent);font-weight:850}.rule-box{margin-top:15px;padding:13px;border-radius:14px;background:rgba(240,241,234,.85)}.rule-box p{margin:6px 0 0;font-size:12px;color:var(--muted);line-height:1.55}.warning{padding:11px;border-radius:12px;background:#fff3d8;color:#795d24;font-size:12px;line-height:1.5}.kv{display:flex;justify-content:space-between;gap:10px;padding:9px 0;border-bottom:1px solid var(--line)}.kv code{max-width:60%;overflow:hidden;text-overflow:ellipsis}
.gate{position:fixed;inset:0;z-index:100;display:grid;place-items:center;background:rgba(31,38,34,.62);backdrop-filter:blur(14px)}.gate.hidden{display:none}.gate-card{width:min(430px,calc(100% - 30px));background:#fffdf8;border-radius:25px;padding:32px;text-align:center;box-shadow:0 30px 80px rgba(0,0,0,.2)}.gate-logo{font-size:55px}.gate-card h1{margin:6px}.gate-card p{color:var(--muted);line-height:1.55}
.focus-layout{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr);gap:16px}.focus-card{text-align:center}.segmented{display:inline-flex;padding:4px;background:#efeee7;border-radius:12px}.segmented button{border:0;background:transparent;padding:8px 12px;border-radius:9px;font-weight:800}.segmented button.active{background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.07)}.timer-wrap{width:320px;height:320px;margin:16px auto;position:relative}.timer-svg{width:100%;height:100%;transform:rotate(-90deg)}.timer-svg circle{fill:none;stroke-width:11}.timer-svg .track{stroke:#e9e7df}.timer-svg .progress{stroke:var(--accent);stroke-linecap:round;stroke-dasharray:641;stroke-dashoffset:0;transition:.3s}.timer-center{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}.focus-companion{font-size:70px;line-height:1}.timer-center strong{font-size:38px;margin-top:7px}.timer-center small{color:var(--muted)}.duration-row{display:flex;align-items:center;gap:12px;max-width:420px;margin:0 auto 12px}.duration-row button{width:42px;height:42px;border-radius:50%;border:1px solid var(--line);background:#fff}.focus-actions{display:flex;justify-content:center;gap:9px;margin-top:12px}
.todo-add{display:grid;grid-template-columns:130px 1fr 150px 120px auto;gap:9px}.todo-item,.habit-item,.session-item,.post-item,.event-item{display:flex;gap:11px;align-items:center;padding:11px;border:1px solid var(--line);border-radius:13px;background:rgba(255,255,255,.65)}.todo-item.done .todo-title{text-decoration:line-through;opacity:.55}.todo-icon,.habit-icon{width:38px;height:38px;border-radius:10px;background:#f1f1ea;display:grid;place-items:center;font-size:20px;overflow:hidden;flex:0 0 auto}.todo-icon img,.habit-icon img,.asset-thumb img{width:100%;height:100%;object-fit:cover}.grow{flex:1}.item-actions{display:flex;gap:5px}.icon-btn{border:0;background:#efeee8;border-radius:9px;padding:7px 9px}.filters{display:flex;gap:5px}.filters button{border:0;background:#efeee8;padding:7px 10px;border-radius:9px;font-size:11px}.filters button.active{background:var(--accent);color:#fff}.weekdays{display:flex;gap:5px;flex-wrap:wrap;margin:10px 0}.weekdays button{border:1px solid var(--line);background:#fff;border-radius:9px;padding:7px 9px}.weekdays button.active{background:var(--accent);color:#fff}.habit-card .progress-line{height:7px;border-radius:10px;background:#e9e7df;overflow:hidden;margin:10px 0}.habit-card .progress-line i{display:block;height:100%;background:var(--accent)}.heatmap{display:grid;grid-template-columns:repeat(15,1fr);gap:5px}.heatmap i{aspect-ratio:1;border-radius:4px;background:#e8e8e1}.heatmap i.l1{background:color-mix(in srgb,var(--accent) 30%,#fff)}.heatmap i.l2{background:color-mix(in srgb,var(--accent) 58%,#fff)}.heatmap i.l3{background:var(--accent)}
.schedule-grid{grid-template-columns:300px 1fr}.schedule-card{position:relative;overflow:hidden}.week-calendar{display:grid;grid-template-columns:repeat(7,minmax(100px,1fr));gap:8px;overflow-x:auto}.day-column{min-height:330px;border:1px solid var(--line);border-radius:13px;padding:9px;background:rgba(248,248,243,.75)}.day-column h4{margin:0 0 9px;font-size:12px}.event-chip{padding:7px;border-radius:9px;margin:5px 0;color:#fff;font-size:10px;cursor:pointer}.sticker-palette,.asset-library{display:flex;flex-wrap:wrap;gap:8px}.sticker-btn,.asset-thumb{width:48px;height:48px;border:1px solid var(--line);border-radius:11px;background:#fff;display:grid;place-items:center;font-size:25px;overflow:hidden}.sticker-canvas{position:absolute;inset:58px 18px 18px 18px;pointer-events:none}.sticker-canvas.placing{pointer-events:auto}.placed-sticker{position:absolute;pointer-events:auto;cursor:grab;user-select:none;touch-action:none;filter:drop-shadow(0 4px 5px rgba(0,0,0,.15))}.placed-sticker img{width:100%;height:100%;object-fit:contain}.bar-chart{height:240px;display:flex;align-items:flex-end;gap:14px;padding:20px 10px 0}.bar{flex:1;min-width:30px;text-align:center}.bar i{display:block;background:var(--accent);border-radius:8px 8px 3px 3px;min-height:3px}.bar span{font-size:10px;color:var(--muted)}.bar b{display:block;font-size:10px;margin-bottom:4px}
.upload-zone{border:1px dashed #bbbdb5;border-radius:13px;padding:14px;display:flex;gap:8px;justify-content:center;align-items:center;background:#f7f6f0;cursor:pointer;margin:10px 0}.checkline{display:flex;gap:8px;align-items:center;font-size:12px}.checkline input{width:auto}.post-item{align-items:flex-start}.post-item img{width:100px;height:80px;object-fit:cover;border-radius:10px}.coin-big{font-size:20px;font-weight:900}.shop-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:11px}.shop-grid.compact{grid-template-columns:repeat(2,minmax(0,1fr))}.shop-item{border:1px solid var(--line);border-radius:14px;padding:13px;text-align:center;background:rgba(255,255,255,.65)}.shop-item .emoji{font-size:40px}.shop-item h4{margin:6px 0}.shop-item button{width:100%}.shop-item.owned{opacity:.72}.asset-thumb{position:relative}.asset-thumb small{position:absolute;bottom:0;left:0;right:0;background:rgba(0,0,0,.55);color:#fff;font-size:7px;padding:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.world-grid{grid-template-columns:280px 1fr}.world-canvas{height:620px;border-radius:18px;position:relative;overflow:hidden;background:linear-gradient(#b9d8e8 0 48%,#9bc181 48% 100%);border:1px solid rgba(255,255,255,.7)}.world-canvas:after{content:"";position:absolute;left:-10%;right:-10%;top:44%;height:16%;background:rgba(255,255,255,.25);border-radius:50%;filter:blur(12px)}.world-object{position:absolute;z-index:2;cursor:grab;user-select:none;touch-action:none;text-align:center;filter:drop-shadow(0 7px 7px rgba(0,0,0,.15))}.background-info{font-size:11px;color:var(--muted);padding:9px;background:#f2f1ea;border-radius:10px;word-break:break-word}
.toast{position:fixed;right:20px;bottom:20px;z-index:200;background:#24302a;color:#fff;padding:11px 15px;border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,.2);opacity:0;transform:translateY(10px);pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:none}
hr{border:0;border-top:1px solid var(--line);margin:18px 0}
@media(max-width:1050px){.metrics{grid-template-columns:repeat(2,1fr)}.grid.two,.focus-layout,.schedule-grid,.world-grid{grid-template-columns:1fr}.shop-grid{grid-template-columns:repeat(3,1fr)}.todo-add{grid-template-columns:100px 1fr 130px}.todo-add #todoTime,.todo-add #addTodoBtn{grid-column:auto}.world-canvas{height:500px}}
@media(max-width:760px){.sidebar{width:72px;padding:14px 8px}.brand{font-size:0;padding:6px 0 18px;text-align:center}.brand span{font-size:25px}.brand small{display:none}.sidebar nav button{font-size:0;text-align:center;padding:10px}.sidebar nav button span{font-size:21px;width:auto}.cloud-badge{font-size:0;text-align:center}.cloud-badge:before{content:"☁️";font-size:18px}.main{margin-left:72px}.topbar{padding:12px}.profile-pill b{display:none}.page{padding:16px}.hero{padding:24px}.hero h1{font-size:25px}.hero-plant{font-size:65px}.grid.three,.metrics{grid-template-columns:1fr 1fr}.shop-grid{grid-template-columns:repeat(2,1fr)}.todo-add{grid-template-columns:1fr 1fr}.todo-add #todoTitle{grid-column:1/-1}.timer-wrap{width:270px;height:270px}.week-calendar{grid-template-columns:repeat(7,130px)}}
@media(max-width:480px){.grid.three,.metrics{grid-template-columns:1fr}.top-actions .pill:first-child{display:none}.hero-plant{display:none}.shop-grid{grid-template-columns:1fr 1fr}.row{flex-wrap:wrap}.row>*{min-width:120px}}

/* StudyLand V3.1 — Todo theo ngày */
.todo-v31-head{background:linear-gradient(115deg,rgba(239,247,233,.94),rgba(255,253,248,.9))}
.todo-eyebrow{color:var(--accent);font-size:11px}
.todo-v31-head h3{font-size:22px;margin:7px 0 3px}
.todo-test-label{border:1px solid #d7bfa0;background:#fff4e4;color:#8a6139;font-weight:800;font-size:10px;padding:7px 10px;border-radius:999px;white-space:nowrap}
.todo-date-nav{display:flex;gap:9px;align-items:center;max-width:440px}
.todo-date-nav input{flex:1;min-width:130px}
.todo-date-nav button{flex:0 0 auto}
#page-todo>.card{margin-bottom:16px}
#page-todo .todo-add{grid-template-columns:85px minmax(180px,1fr) 135px 115px 155px auto;align-items:center}
#page-todo .todo-list-header{margin-top:22px}
.todo-empty{border:1px dashed var(--line);border-radius:13px;padding:22px;text-align:center;color:var(--muted);background:rgba(255,255,255,.45)}
.todo-count{font-weight:900;background:var(--accent);color:#fff;border-radius:999px;min-width:30px;padding:5px 9px;text-align:center}
.backlog-item{background:rgba(255,250,237,.75)}
.backlog-item .btn{white-space:nowrap}
.todo-history-dates{display:flex;flex-wrap:wrap;gap:8px}
.todo-history-chip{border:1px solid var(--line);border-radius:999px;padding:9px 12px;background:rgba(255,255,255,.75);font-weight:750;color:var(--ink)}
.todo-history-chip.active{background:var(--accent);color:#fff}
.todo-history-chip small{opacity:.65}
@media(max-width:1200px){#page-todo .todo-add{grid-template-columns:90px minmax(150px,1fr) 140px}#page-todo .todo-add>*{min-width:0}}
@media(max-width:760px){#page-todo .todo-add{grid-template-columns:1fr 1fr}#page-todo .todo-add #todoTitle{grid-column:1/-1}#page-todo .todo-add #addTodoBtn{grid-column:1/-1}.todo-v31-head .section-head{align-items:flex-start;flex-wrap:wrap}.todo-date-nav{max-width:none}}
@media(max-width:480px){.todo-date-nav{flex-wrap:wrap}.todo-date-nav input{min-width:150px}.backlog-item{flex-wrap:wrap}.backlog-item .btn{margin-left:48px}}

/* Bản phục hồi Google Sign-in */
.hidden{display:none!important}
.google-signin{display:flex;gap:12px;align-items:center;justify-content:center;background:#fff!important;color:#24292e!important;border:1px solid #dadce0!important;font-weight:750;min-height:48px}
.google-signin:hover{background:#f4f6f9!important}
.google-mark{font-weight:900;font-family:Arial,sans-serif;font-size:23px;color:#4285f4}
.google-avatar{width:32px;height:32px;object-fit:cover;border-radius:50%;border:1px solid #ddd;flex:0 0 auto}
.google-account{display:flex;align-items:center;gap:10px;min-height:44px;margin:8px 0 12px}
.recovery-pending{border-top:1px solid #e6e8e5;margin-top:14px;padding-top:16px;text-align:left}
.recovery-pending p{font-size:13px;line-height:1.5}
.recovery-pending button{margin-top:8px}
.recovery-id{padding:10px;background:#f6f7f5;border-radius:10px;word-wrap:break-word}
.recovery-id small{display:block;color:#6d7770}
.recovery-id code{font-size:11px;overflow-wrap:anywhere}
.profile-pill{display:flex;gap:8px;align-items:center}