:root {
  --bg:#fffbf9;--bg2:#ffffff;--bg3:#fdf4f1;
  --ink:#3a2e2e;--ink2:#5c4a4a;--muted:#b8a9a6;--muted2:#e8dcd8;
  --rule:#f3e6e3;--rule2:#ebd8d3;
  --sakura:#e8b4b8;--sakura-deep:#d4919a;--sakura-light:#fdf0ef;--sakura-pale:#fff5f3;
  --matcha:#8ba888;--matcha-light:#e8f0e5;
  --wakatake:#7ea6c9;--wakatake-light:#e4eff7;
  --sunset:#e8a87c;--sunset-light:#fcefe2;
  --murasaki:#a78bca;--murasaki-light:#f0e8ff;
  --radius:12px;--radius-sm:8px;
  --shadow-sm:0 2px 8px rgba(212,145,154,0.06);
}
*{margin:0;padding:0;box-sizing:border-box}
body{
  font-family:'Noto Sans SC',-apple-system,sans-serif;
  background:var(--bg);color:var(--ink);min-height:100vh;
  -webkit-font-smoothing:antialiased;font-weight:400;
  position:relative;overflow-x:hidden;
}
body::before{
  content:'';position:fixed;top:0;left:0;right:0;bottom:0;
  background-image:
    radial-gradient(circle at 8% 15%, rgba(232,180,184,0.07) 0%, transparent 45%),
    radial-gradient(circle at 92% 85%, rgba(232,180,184,0.05) 0%, transparent 45%);
  pointer-events:none;z-index:0;
}
.jp-serif{font-family:'Noto Serif JP',Georgia,serif;font-weight:300}
.mono{font-family:'JetBrains Mono',monospace;font-weight:400}

/* Nav */
.nav{
  position:sticky;top:0;z-index:100;background:rgba(255,251,249,0.85);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--rule);position:relative;
}
.nav-inner{max-width:1100px;margin:0 auto;padding:13px 32px;display:flex;align-items:center;gap:16px}
.nav-logo{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--ink)}
.nav-logo span{font-family:'Noto Serif JP',serif;font-weight:400;font-size:15px;letter-spacing:0.05em}
.nav-links{display:flex;gap:2px;margin-left:4px;flex-wrap:wrap;flex:1}
.nav-links a{
  padding:5px 12px;border-radius:20px;font-size:11px;color:var(--ink2);
  text-decoration:none;transition:all 0.2s;font-weight:400;
}
.nav-links a:hover{background:var(--sakura-pale);color:var(--sakura-deep)}
.nav-links a.active{background:var(--sakura-deep);color:#fff}
.nav-toggle{display:none}

/* Accessibility */
a:focus-visible,button:focus-visible,.nav-toggle:focus-visible{
  outline:2px solid var(--sakura-deep);outline-offset:2px;border-radius:4px;
}
.task-card:focus-visible,.q-item:focus-visible{
  outline:2px solid var(--sakura-deep);outline-offset:2px;
}

/* Layout */
#app{display:flex;max-width:1100px;margin:0 auto;position:relative;z-index:1}
#vue-sidebar{
  width:260px;min-width:260px;background:var(--bg2);
  border-right:1px solid var(--rule);padding:0 0 24px;
  position:sticky;top:53px;height:calc(100vh - 53px);overflow-y:auto;
}
.sidebar-hero{
  padding:28px 20px 20px;text-align:center;
  border-bottom:1px solid var(--rule);
  background:linear-gradient(180deg,var(--sakura-pale) 0%,var(--bg2) 100%);
}
.sakura-mark{display:inline-flex;align-items:center;justify-content:center;margin-bottom:10px;opacity:0.8}
.sidebar-hero h1{font-family:'Noto Serif JP',serif;font-weight:300;font-size:20px;letter-spacing:0.05em;color:var(--ink)}
.sidebar-hero .sub{font-size:10px;color:var(--muted);margin-top:3px;letter-spacing:0.1em}
.sidebar-body{padding:16px 16px 0}

.ring-wrap{display:flex;justify-content:center;margin:-34px 0 14px;position:relative;z-index:2}
.progress-ring{position:relative;width:100px;height:100px;background:var(--bg2);border-radius:50%;padding:5px;box-shadow:var(--shadow-sm)}
.progress-ring svg{transform:rotate(-90deg)}
.progress-ring .track{fill:none;stroke:var(--rule);stroke-width:3.5}
.progress-ring .fill{fill:none;stroke:var(--sakura-deep);stroke-width:3.5;stroke-linecap:round;transition:stroke-dashoffset 0.8s cubic-bezier(0.4,0,0.2,1)}
.progress-ring .center{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center}
.progress-ring .pct{font-family:'Noto Serif JP',serif;font-size:22px;font-weight:300;color:var(--ink)}
.progress-ring .pct small{font-size:11px;font-weight:300}
.progress-ring .lbl{font-size:8px;color:var(--muted);margin-top:1px;letter-spacing:0.1em}

.quick-stats{display:flex;justify-content:space-around;margin-bottom:16px;padding:0 2px}
.qs-item{text-align:center}
.qs-item .n{font-family:'JetBrains Mono',monospace;font-size:16px;font-weight:500;color:var(--ink)}
.qs-item .l{font-size:8px;color:var(--muted);margin-top:2px;letter-spacing:0.05em}

.sec{margin-bottom:16px}
.sec-h{font-size:9px;color:var(--muted);letter-spacing:0.15em;margin-bottom:6px;display:flex;align-items:center;gap:6px}
.sec-h::before,.sec-h::after{content:'';flex:1;height:1px;background:var(--rule)}
.sec-h::after{flex:2}

/* Pomodoro */
.pomo-box{background:var(--sakura-pale);border:1px solid var(--rule);border-radius:var(--radius);padding:14px;text-align:center}
.pomo-box .t{font-family:'Noto Serif JP',serif;font-size:28px;font-weight:300;color:var(--sakura-deep);letter-spacing:0.05em;line-height:1;margin:4px 0 8px}
.pomo-box .lbl{font-size:8px;color:var(--muted);letter-spacing:0.1em}
.pomo-btns{display:flex;gap:5px;justify-content:center}
.pomo-btn{padding:4px 14px;border-radius:20px;border:1px solid var(--rule2);background:var(--bg2);font-size:10px;font-weight:500;cursor:pointer;font-family:inherit;color:var(--ink2);transition:all 0.2s}
.pomo-btn:hover{border-color:var(--sakura);color:var(--sakura-deep)}
.pomo-btn.primary{background:var(--sakura-deep);border-color:var(--sakura-deep);color:#fff}
.pomo-btn.primary:hover{background:#c47a84;border-color:#c47a84}
.pomo-info{font-size:8px;color:var(--muted);margin-top:6px}

/* Heatmap */
.heatmap-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:3px}
.heat-cell{aspect-ratio:1;border-radius:2px;background:var(--rule);transition:all 0.2s;cursor:pointer}
.heat-cell.l1{background:var(--sakura);opacity:0.5}
.heat-cell.l2{background:var(--sakura-deep)}
.heat-cell:hover{transform:scale(1.2)}
.heatmap-lbl{display:flex;justify-content:space-between;font-size:8px;color:var(--muted);margin-top:3px}

/* Module Pills */
.week-pills{display:flex;gap:3px}
.wpill{flex:1;padding:6px 3px;border-radius:var(--radius-sm);border:1px solid var(--rule);background:var(--bg2);cursor:pointer;text-align:center;transition:all 0.2s;font-size:9px;color:var(--muted);font-weight:500}
.wpill:hover{border-color:var(--sakura);color:var(--sakura-deep)}
.wpill.active{background:var(--sakura-deep);border-color:var(--sakura-deep);color:#fff}
.wpill .mp{font-size:7px;font-family:'JetBrains Mono',monospace;margin-top:1px;opacity:0.7}

/* Category */
.cat-list{display:flex;flex-direction:column;gap:5px}
.cat-row{display:flex;align-items:center;gap:6px;font-size:10px}
.cat-row .dot{width:5px;height:5px;border-radius:50%;flex-shrink:0}
.cat-row .name{flex:1;color:var(--ink2)}
.cat-row .val{font-family:'JetBrains Mono',monospace;font-size:8px;color:var(--muted)}
.cat-row .bar{width:40px;height:3px;background:var(--rule);border-radius:2px;overflow:hidden}
.cat-row .bar .f{height:100%;border-radius:2px;transition:width 0.4s}

/* Quote */
.quote-card{padding:10px 12px;border-left:2px solid var(--sakura);background:var(--sakura-pale);border-radius:0 var(--radius-sm) var(--radius-sm) 0;cursor:pointer;transition:all 0.2s}
.quote-card:hover{transform:translateX(2px)}
.quote-card .qt{font-family:'Noto Serif JP',serif;font-size:11px;font-style:italic;color:var(--ink2);line-height:1.6;font-weight:300}
.quote-card .qa{font-size:9px;color:var(--muted);margin-top:4px;text-align:right}

.reset-link{display:block;width:100%;text-align:center;padding:6px;font-size:9px;color:var(--muted);cursor:pointer;background:none;border:none;font-family:inherit;transition:color 0.2s;letter-spacing:0.1em}
.reset-link:hover{color:var(--sakura-deep)}

/* Main */
#react-main{flex:1;min-width:0}

.main-header{padding:30px 32px 20px;border-bottom:1px solid var(--rule);display:flex;justify-content:space-between;align-items:flex-end}
.main-header .title h2{font-family:'Noto Serif JP',serif;font-weight:400;font-size:24px;letter-spacing:0.03em}
.main-header .title p{font-size:11px;color:var(--muted);margin-top:4px}
.main-header .meta{display:flex;gap:20px;align-items:center}
.meta-item{text-align:center}
.meta-item .v{font-family:'JetBrains Mono',monospace;font-size:15px;color:var(--sakura-deep);font-weight:500}
.meta-item .l{font-size:8px;color:var(--muted);margin-top:1px;letter-spacing:0.05em}

/* Toolbar */
.toolbar{display:flex;gap:10px;padding:14px 32px;border-bottom:1px solid var(--rule);align-items:center;flex-wrap:wrap}
.chips{display:flex;gap:3px;flex-wrap:wrap}
.chip{padding:3px 11px;border-radius:20px;font-size:10px;cursor:pointer;transition:all 0.2s;color:var(--muted);font-weight:400;background:transparent;border:none;font-family:inherit}
.chip:hover{color:var(--sakura-deep)}
.chip.active{background:var(--sakura-pale);color:var(--sakura-deep);font-weight:500}
.search-box{margin-left:auto;position:relative;min-width:160px;flex:0 0 200px}
.search-box input{width:100%;padding:6px 10px 6px 28px;border-radius:20px;border:1px solid var(--rule);background:var(--bg2);color:var(--ink);font-size:11px;font-family:inherit;outline:none;transition:all 0.2s}
.search-box input:focus{border-color:var(--sakura);box-shadow:0 0 0 3px rgba(232,180,184,0.15)}
.search-box svg{position:absolute;left:9px;top:50%;transform:translateY(-50%);color:var(--muted)}

.content{padding:20px 32px 40px}

/* ===== Task Card ===== */
.task-card{background:var(--bg2);border:1px solid var(--rule);border-radius:var(--radius);margin-bottom:10px;transition:all 0.25s;overflow:hidden}
.task-card:hover{border-color:var(--sakura);box-shadow:var(--shadow-sm);transform:translateY(-1px)}
.task-card.lvl-1{border-left:2px solid var(--sunset)}
.task-card.lvl-2{border-left:2px solid var(--matcha)}
.task-card.lvl-2 .t-title{color:var(--muted);text-decoration:line-through;text-decoration-color:var(--muted2)}
.task-card.flash-mode .t-detail,.task-card.flash-mode .t-sections{display:none}
.task-card.flash-revealed .t-detail,.task-card.flash-revealed .t-sections{display:block !important}

.task-inner{display:flex;gap:10px;padding:14px 18px 10px}
.mastery{width:18px;height:18px;min-width:18px;border-radius:50%;border:1.5px solid var(--muted2);display:flex;align-items:center;justify-content:center;cursor:pointer;margin-top:3px;transition:all 0.2s;background:var(--bg2)}
.mastery.lvl-1{border-color:var(--sunset);background:var(--sunset-light)}
.mastery.lvl-2{border-color:var(--matcha);background:var(--matcha)}
.mastery svg{opacity:0;transition:opacity 0.2s}
.mastery.lvl-1 svg{opacity:0.6}
.mastery.lvl-2 svg{opacity:1}

.tbody{flex:1;min-width:0}
.t-head{display:flex;align-items:center;gap:7px;flex-wrap:wrap}
.t-mod{font-family:'JetBrains Mono',monospace;font-size:9px;color:var(--sakura-deep);background:var(--sakura-light);padding:2px 6px;border-radius:3px;font-weight:500}
.t-title{font-size:13px;font-weight:500;color:var(--ink)}
.t-time{font-family:'JetBrains Mono',monospace;font-size:9px;color:var(--muted);margin-left:auto}
.t-diff{display:flex;gap:1px;opacity:0.6}
.t-diff .s{width:8px;height:8px;color:var(--sakura-deep)}
.t-diff .s.off{opacity:0.2}

.t-detail{font-size:11px;color:var(--muted);margin-top:5px;line-height:1.7}

.t-tags{display:flex;gap:3px;flex-wrap:wrap;margin-top:6px}
.t-tag{font-size:8px;padding:2px 6px;border-radius:3px;font-family:'JetBrains Mono',monospace;font-weight:400}
.tag-must{background:#fce8e3;color:#c44530}
.tag-high{background:#e4eff7;color:#5a7fa3}
.tag-mid{background:#e8f0e5;color:#6b8a6a}

/* ===== Collapsible Sections ===== */
.t-sections{margin-top:8px;border-top:1px dashed var(--rule);padding-top:5px}
.t-sec{border-bottom:1px dashed var(--rule);padding-bottom:5px;margin-bottom:5px}
.t-sec:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}
.t-sec-hd{display:flex;align-items:center;gap:5px;padding:3px 0;cursor:pointer;user-select:none;transition:all 0.2s}
.t-sec-hd:hover{color:var(--sakura-deep)}
.t-sec-hd .sec-icon{width:14px;height:14px;border-radius:3px;display:flex;align-items:center;justify-content:center;font-size:9px;flex-shrink:0}
.t-sec-hd .sec-name{font-size:10px;font-weight:600;color:var(--ink2);flex:1}
.t-sec-hd .sec-count{font-family:'JetBrains Mono',monospace;font-size:8px;color:var(--muted);background:var(--bg3);padding:1px 5px;border-radius:3px}
.t-sec-hd .sec-arrow{transition:transform 0.2s;color:var(--muted);font-size:9px}
.t-sec-hd.open .sec-arrow{transform:rotate(90deg)}

.t-sec-bd{max-height:0;overflow:hidden;transition:max-height 0.3s ease, padding 0.3s ease;padding-left:19px}
.t-sec-bd.open{padding-top:5px;padding-bottom:2px}

/* Goal */
.goal-list{display:flex;flex-direction:column;gap:3px}
.goal-item{font-size:10px;color:var(--ink2);line-height:1.5;padding-left:14px;position:relative}
.goal-item::before{content:'✓';position:absolute;left:0;top:0;font-size:8px;color:var(--matcha);font-weight:700}

/* Keypoints */
.kp-list{display:flex;flex-direction:column;gap:4px}
.kp-item{font-size:10px;color:var(--ink2);line-height:1.5;padding-left:12px;position:relative}
.kp-item::before{content:'・';position:absolute;left:0;top:0;color:var(--sakura-deep);font-weight:700}
.kp-item strong{color:var(--ink);font-weight:600}
.kp-item .kp-code{display:inline-block;background:var(--bg3);padding:0 3px;border-radius:2px;font-family:'JetBrains Mono',monospace;font-size:9px;color:var(--sakura-deep)}

/* Questions */
.q-list{display:flex;flex-direction:column;gap:4px}
.q-item{font-size:10px;color:var(--ink2);line-height:1.5;padding-left:16px;position:relative}
.q-item::before{content:'Q';position:absolute;left:0;top:0;font-family:'JetBrains Mono',monospace;font-size:7px;font-weight:700;color:var(--sakura-deep);background:var(--sakura-light);width:11px;height:11px;border-radius:2px;display:flex;align-items:center;justify-content:center}
.q-item .q-text{font-weight:500;color:var(--ink)}
.q-item .q-answer{display:block;margin-top:4px;color:var(--ink2);font-size:9px;padding-left:6px;border-left:2px solid var(--matcha);line-height:1.6}
.q-item .q-answer strong{color:var(--matcha)}

/* Resources */
.res-list{display:flex;flex-direction:column;gap:3px}
.res-item{display:flex;align-items:center;gap:5px;font-size:10px;color:var(--ink2);padding:4px 7px;border-radius:4px;background:var(--sakura-pale);text-decoration:none;transition:all 0.2s}
.res-item:hover{background:var(--sakura-light);color:var(--sakura-deep)}
.res-item .ri{font-size:11px}
.res-item .rn{flex:1;font-weight:500}
.res-item .rarr{opacity:0.4;font-size:9px;transition:all 0.2s}
.res-item:hover .rarr{opacity:1;color:var(--sakura-deep);transform:translateX(2px)}
.res-row{display:flex;align-items:center;gap:4px}
.res-row .res-item{flex:1;min-width:0}
.res-mirror{font-size:8px;color:var(--matcha);padding:2px 6px;border-radius:3px;background:var(--matcha-light);text-decoration:none;white-space:nowrap;transition:all 0.2s;cursor:pointer;border:none;font-family:inherit}
.res-mirror:hover{background:var(--matcha);color:#fff}

/* Tips */
.t-tip{margin-top:6px;font-size:10px;color:var(--matcha);background:var(--matcha-light);border-radius:5px;padding:6px 9px;line-height:1.6}
.t-tip .tl{font-weight:600;margin-right:3px}

/* Notes */
.t-notes{margin-top:6px}
.n-btn{font-size:9px;color:var(--muted);cursor:pointer;display:flex;align-items:center;gap:3px;background:none;border:none;padding:0;font-family:inherit;transition:color 0.2s}
.n-btn:hover{color:var(--sakura-deep)}
.n-btn .nc{background:var(--sakura-light);color:var(--sakura-deep);font-size:7px;padding:1px 3px;border-radius:2px;font-weight:600}
.n-ta{width:100%;margin-top:5px;padding:5px 8px;border-radius:5px;border:1px solid var(--rule);background:var(--sakura-pale);color:var(--ink);font-size:10px;font-family:inherit;outline:none;resize:vertical;min-height:42px;line-height:1.6;transition:border-color 0.2s}
.n-ta:focus{border-color:var(--sakura)}
.n-save{margin-top:3px;padding:2px 8px;border-radius:3px;border:1px solid var(--sakura);background:var(--sakura-pale);color:var(--sakura-deep);font-size:9px;font-weight:500;cursor:pointer;font-family:inherit;transition:all 0.2s}
.n-save:hover{background:var(--sakura-deep);color:#fff}

/* Empty */
.empty{text-align:center;padding:50px 20px;color:var(--muted)}
.empty p:first-child{font-family:'Noto Serif JP',serif;font-size:15px;margin-bottom:4px}
.empty p:last-child{font-size:11px}

/* Resource Panel */
.res-sec{margin-top:24px;padding-top:20px;border-top:1px solid var(--rule)}
.res-sec h3{font-family:'Noto Serif JP',serif;font-weight:400;font-size:15px;color:var(--ink);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.res-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
.res-link{display:flex;align-items:center;gap:8px;padding:10px 12px;border-radius:var(--radius-sm);background:var(--bg2);border:1px solid var(--rule);transition:all 0.2s;text-decoration:none;color:var(--ink2)}
.res-link:hover{border-color:var(--sakura);transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.res-link .ri{width:28px;height:28px;border-radius:7px;display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0}
.res-link .rt{flex:1;min-width:0}
.res-link .rn{font-size:11px;font-weight:500}
.res-link .ru{font-size:8px;color:var(--muted);font-family:'JetBrains Mono',monospace;margin-top:1px}
.res-link .arr{color:var(--muted);font-size:11px;opacity:0.5;transition:all 0.2s}
.res-link:hover .arr{opacity:1;color:var(--sakura-deep);transform:translateX(2px)}

/* Flash toggle */
.flash-toggle{display:flex;align-items:center;gap:6px}
.flash-toggle label{font-size:10px;color:var(--muted);cursor:pointer;font-weight:400}
.flash-sw{position:relative;width:28px;height:16px;background:var(--rule2);border-radius:8px;cursor:pointer;transition:background 0.2s}
.flash-sw.on{background:var(--sakura-deep)}
.flash-sw::after{content:'';position:absolute;top:2px;left:2px;width:12px;height:12px;background:#fff;border-radius:50%;transition:transform 0.2s;box-shadow:0 1px 2px rgba(0,0,0,0.1)}
.flash-sw.on::after{transform:translateX(12px)}

/* Entrance */
@keyframes fadeUp{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
.task-card{animation:fadeUp 0.4s ease-out backwards}
.task-card:nth-child(1){animation-delay:0.02s}
.task-card:nth-child(2){animation-delay:0.04s}
.task-card:nth-child(3){animation-delay:0.06s}
.task-card:nth-child(4){animation-delay:0.08s}
.task-card:nth-child(5){animation-delay:0.10s}
.task-card:nth-child(6){animation-delay:0.12s}
.task-card:nth-child(7){animation-delay:0.14s}

/* Responsive */
@media(max-width:900px){
  #app{flex-direction:column}
  #vue-sidebar{width:100%;min-width:100%;height:auto;position:relative;border-right:none;border-bottom:1px solid var(--rule)}
  .main-header,.toolbar,.content{padding-left:20px;padding-right:20px}
  .res-grid{grid-template-columns:repeat(2,1fr)}
  .nav-toggle{display:flex;flex-direction:column;gap:4px;background:none;border:none;cursor:pointer;padding:8px;margin-left:auto}
  .nav-toggle span{display:block;width:22px;height:2px;background:var(--ink);border-radius:1px;transition:transform .25s,opacity .25s}
  .nav-toggle.active span:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .nav-toggle.active span:nth-child(2){opacity:0}
  .nav-toggle.active span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
  .nav-links{
    display:none;position:absolute;top:100%;left:0;right:0;
    flex-direction:column;background:var(--bg2);padding:8px 16px;
    box-shadow:0 8px 24px rgba(0,0,0,.08);z-index:100;gap:2px
  }
  .nav-links.open{display:flex}
}
@media(max-width:600px){
  .res-grid{grid-template-columns:1fr}
  .main-header{flex-direction:column;align-items:flex-start;gap:10px}
  .week-pills{flex-direction:column}
  .nav-inner{padding:10px 16px}
}
::-webkit-scrollbar{width:4px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--rule2);border-radius:2px}
::-webkit-scrollbar-thumb:hover{background:var(--sakura)}