*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Microsoft JhengHei','PingFang TC',sans-serif;background:#F4F5F0;color:#2d3436;min-height:100vh}
button{cursor:pointer;border:none;outline:none;font-family:inherit}
input,select,textarea{font-family:inherit;outline:none}

/* Login */
#login-screen{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#e8f5ee 0%,#f4f5f0 100%)}
.login-card{background:#fff;border-radius:20px;padding:60px 48px;text-align:center;box-shadow:0 8px 40px rgba(0,0,0,.10);max-width:400px;width:90%}
.login-logo{width:72px;height:72px;background:#3BAF85;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 24px;font-size:32px}
.login-card h1{font-size:26px;font-weight:700;color:#1a1a1a;margin-bottom:8px}
.login-card p{color:#888;margin-bottom:36px;font-size:15px}
.login-btn{background:#3BAF85;color:#fff;border-radius:12px;padding:14px 32px;font-size:16px;font-weight:600;width:100%;transition:background .2s}
.login-btn:hover{background:#2e9a70}
.login-btn svg{vertical-align:middle;margin-right:8px}

/* App Layout */
#app-container{display:none;min-height:100vh;flex-direction:column}
.app-header{background:#fff;padding:14px 32px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #eaece6;position:sticky;top:0;z-index:100}
.header-brand h1{font-size:20px;font-weight:700;color:#1a1a1a}
.header-brand p{font-size:12px;color:#888;margin-top:2px}
.header-nav{display:flex;gap:6px}
.nav-btn{display:flex;flex-direction:column;align-items:center;gap:4px;padding:8px 18px;border-radius:12px;background:transparent;color:#aaa;font-size:11px;font-weight:600;transition:all .2s;min-width:72px}
.nav-btn .nav-icon{width:38px;height:38px;border-radius:50%;background:#f0f0f0;display:flex;align-items:center;justify-content:center;font-size:18px;transition:all .2s}
.nav-btn.active{color:#3BAF85}
.nav-btn.active .nav-icon{background:#3BAF85;color:#fff}
.nav-btn:hover:not(.active){color:#3BAF85}
.app-body{flex:1;padding:24px 32px;max-width:1100px;margin:0 auto;width:100%}
.page{display:none}
.page.active{display:block}

/* Cards */
.card{background:#fff;border-radius:16px;padding:24px;box-shadow:0 2px 12px rgba(0,0,0,.06);margin-bottom:20px}
.card-title{font-size:15px;font-weight:700;color:#2d3436;display:flex;align-items:center;gap:8px;margin-bottom:20px}

/* Subject Cards */
.subject-grid{display:flex;flex-wrap:wrap;gap:12px;margin-top:12px}
.subject-card{width:120px;min-height:96px;background:#f8f9fa;border:2px solid transparent;border-radius:14px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;cursor:pointer;transition:all .2s;padding:12px 8px;text-align:center}
.subject-card:hover{border-color:#3BAF85;background:#edf7f2}
.subject-card.selected{border-color:#3BAF85;background:#e8f5ee}
.subject-card.add-subject-card{border:2px dashed #ccc;background:#fff;color:#aaa}
.subject-card.add-subject-card:hover{border-color:#3BAF85;color:#3BAF85;background:#f0faf5}
.subject-card.add-subject-card .subject-avatar{background:#f0f0f0;color:#aaa;font-size:22px}
.subject-card.add-subject-card:hover .subject-avatar{color:#3BAF85;background:#e0f2ea}
.subject-card.add-subject-card .subject-name{color:#aaa}
.subject-card.add-subject-card:hover .subject-name{color:#3BAF85}
.subject-avatar{width:44px;height:44px;border-radius:50%;background:#dde4e0;display:flex;align-items:center;justify-content:center;font-size:20px}
.subject-name{font-size:13px;font-weight:600;color:#2d3436}

/* Filter Pills */
.filter-pills{display:flex;gap:6px}
.pill{padding:6px 14px;border-radius:20px;font-size:13px;font-weight:600;border:1.5px solid #e0e0e0;background:#fff;color:#888;transition:all .15s}
.pill.active{background:#3BAF85;border-color:#3BAF85;color:#fff}
.pill:hover:not(.active){border-color:#3BAF85;color:#3BAF85}

/* Behavior Cards */
.behavior-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:12px;margin-top:12px}
.behavior-card{background:#f8f9fa;border:2px solid transparent;border-radius:14px;padding:16px 10px;display:flex;flex-direction:column;align-items:center;gap:6px;cursor:pointer;transition:all .2s;position:relative}
.behavior-card:hover{border-color:#3BAF85;background:#edf7f2}
.behavior-card.selected{border-color:#3BAF85;background:#e8f5ee}
.behavior-card.negative .behavior-score{color:#e67e22}
.behavior-icon{font-size:28px;width:48px;height:48px;border-radius:50%;background:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 6px rgba(0,0,0,.08)}
.behavior-name{font-size:13px;font-weight:600;text-align:center;color:#2d3436}
.behavior-score{font-size:12px;color:#3BAF85;font-weight:600}
.behavior-card.selected .check{position:absolute;top:8px;right:8px;width:18px;height:18px;background:#3BAF85;border-radius:50%;color:#fff;font-size:11px;display:flex;align-items:center;justify-content:center}
.add-behavior-card{border:2px dashed #ccc;background:transparent;color:#aaa}
.add-behavior-card:hover{border-color:#3BAF85;color:#3BAF85;background:#f0faf5}

/* Confirm Panel */
.confirm-panel{background:#fff;border:2px solid #3BAF85;border-radius:16px;padding:24px;margin-top:16px}
.confirm-title{font-size:13px;color:#888;margin-bottom:6px}
.confirm-subject{font-size:20px;font-weight:700;color:#1a1a1a;margin-bottom:18px}
.confirm-panel textarea{width:100%;border:1.5px solid #e0e4de;border-radius:10px;padding:12px;font-size:14px;resize:vertical;min-height:80px;color:#333;transition:border-color .2s}
.confirm-panel textarea:focus{border-color:#3BAF85}
.confirm-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:16px}
.btn-cancel{background:#f0f0f0;color:#666;padding:10px 24px;border-radius:10px;font-size:14px;font-weight:600}
.btn-cancel:hover{background:#e0e0e0}
.btn-confirm{background:#2d3436;color:#fff;padding:10px 24px;border-radius:10px;font-size:14px;font-weight:600;display:flex;align-items:center;gap:6px}
.btn-confirm:hover{background:#1a1a1a}
.btn-confirm:disabled{background:#aaa;cursor:not-allowed}
.file-upload-area{border:2px dashed #d0d0d0;border-radius:12px;padding:16px;text-align:center;cursor:pointer;transition:border-color .2s,background .2s;min-height:70px;display:flex;align-items:center;justify-content:center;margin-top:8px}
.file-upload-area:hover{border-color:#3BAF85;background:#f6fdf9}
.file-list-item{display:flex;align-items:center;gap:10px;padding:8px 10px;background:#f8f8f8;border-radius:8px;margin-bottom:6px}
.btn-primary{background:#3BAF85;color:#fff;padding:10px 24px;border-radius:10px;font-size:14px;font-weight:600}
.btn-primary:hover{background:#2e9a70}
.btn-major{background:#fff;border:1.5px solid #e67e22;color:#e67e22;padding:7px 14px;border-radius:10px;font-size:13px;font-weight:600}
.btn-major:hover{background:#fff8f0}
.btn-danger{background:#e74c3c;color:#fff;padding:8px 16px;border-radius:8px;font-size:13px;font-weight:600}
.btn-danger:hover{background:#c0392b}

/* Select/Input */
.form-select{border:1.5px solid #e0e4de;border-radius:10px;padding:10px 14px;font-size:14px;background:#fff;color:#333;min-width:160px;transition:border-color .2s}
.form-select:focus{border-color:#3BAF85}
.form-input{border:1.5px solid #e0e4de;border-radius:10px;padding:10px 14px;font-size:14px;background:#fff;color:#333;width:100%;transition:border-color .2s}
.form-input:focus{border-color:#3BAF85}
.filter-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}

/* Behavior Table */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:14px}
th{text-align:left;padding:12px 14px;color:#888;font-weight:600;border-bottom:2px solid #f0f0f0;font-size:13px}
td{padding:12px 14px;border-bottom:1px solid #f4f4f4;vertical-align:middle}
tr:hover td{background:#fafafa}
.score-positive{color:#3BAF85;font-weight:700}
.score-negative{color:#e67e22;font-weight:700}
.tag{display:inline-block;padding:3px 10px;border-radius:20px;font-size:12px;background:#e8f5ee;color:#3BAF85;font-weight:600;margin:1px}
.tag.gray{background:#f0f0f0;color:#888}
.action-btn{padding:5px 12px;border-radius:8px;font-size:12px;font-weight:600;border:1.5px solid;cursor:pointer;transition:all .15s}
.action-btn.edit{border-color:#3BAF85;color:#3BAF85;background:#fff}
.action-btn.edit:hover{background:#e8f5ee}
.action-btn.delete{border-color:#e74c3c;color:#e74c3c;background:#fff}
.action-btn.delete:hover{background:#fff0ee}

/* Trait Grid */
.trait-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}
.trait-item{background:#f8f9fa;border-radius:12px;padding:14px 16px;display:flex;align-items:center;justify-content:space-between;font-size:14px;font-weight:600}
.trait-item button{background:none;border:none;color:#ccc;font-size:16px;cursor:pointer;transition:color .15s}
.trait-item button:hover{color:#e74c3c}

/* Analytics */
.chart-wrap{position:relative;height:220px}
.score-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:12px}
.score-card{background:#f8f9fa;border-radius:12px;padding:14px;text-align:center}
.score-card .sc-label{font-size:12px;color:#888;margin-bottom:6px}
.score-card .sc-value{font-size:26px;font-weight:700}
.sc-value.pos{color:#3BAF85}
.sc-value.neg{color:#e74c3c}
.sc-value.zero{color:#aaa}
.sc-rank{font-size:11px;color:#fff;background:#3BAF85;border-radius:20px;padding:2px 8px;margin-top:6px;display:inline-block}

/* Record Log */
.record-item{display:flex;align-items:flex-start;gap:14px;padding:14px 0;border-bottom:1px solid #f4f4f4}
.record-item:last-child{border-bottom:none}
.record-icon{width:38px;height:38px;border-radius:50%;background:#e8f5ee;display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}
.record-icon.major{background:#fff3e0}
.record-body{flex:1}
.record-title{font-size:14px;font-weight:700;color:#1a1a1a}
.record-note{font-size:13px;color:#666;margin-top:2px;font-style:italic}
.record-tags{margin-top:6px;display:flex;flex-wrap:wrap;gap:4px}
.record-meta{font-size:12px;color:#aaa;margin-top:4px}
.record-score{font-size:16px;font-weight:700;flex-shrink:0;padding-top:6px}
.record-delete-btn{background:none;border:none;cursor:pointer;font-size:16px;color:#e53935;flex-shrink:0;padding:4px 6px;border-radius:6px;transition:background .15s;opacity:0.7}
.record-delete-btn:hover{opacity:1;background:#ffeaea}

/* Pagination */
.pagination{display:flex;justify-content:center;align-items:center;gap:6px;margin-top:16px;padding-top:14px;border-top:1px solid #f0f0f0}
.page-btn{min-width:34px;height:34px;border:1px solid #e0e0e0;background:#fff;border-radius:8px;cursor:pointer;font-size:14px;color:#555;transition:all .15s}
.page-btn:hover:not(:disabled){background:#f0faf5;border-color:#3BAF85;color:#3BAF85}
.page-btn.active{background:#3BAF85;border-color:#3BAF85;color:#fff;font-weight:600}
.page-btn:disabled{opacity:0.35;cursor:default}

/* Tabs */
.sub-tabs{display:flex;gap:0;margin-bottom:24px;border-bottom:2px solid #f0f0f0}
.sub-tab{padding:12px 20px;font-size:14px;font-weight:600;color:#aaa;cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;transition:all .2s}
.sub-tab.active{color:#3BAF85;border-bottom-color:#3BAF85}
.sub-tab:hover:not(.active){color:#2d3436}

/* Modal */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);display:none;align-items:center;justify-content:center;z-index:1000}
.modal-overlay.open{display:flex}
.modal{background:#fff;border-radius:20px;padding:32px;width:90%;max-width:500px;max-height:90vh;overflow-y:auto;position:relative}
.modal h2{font-size:18px;font-weight:700;margin-bottom:20px;color:#1a1a1a}
.modal-close{position:absolute;top:20px;right:20px;background:none;border:none;font-size:22px;color:#aaa;cursor:pointer}
.modal-close:hover{color:#333}
.form-group{margin-bottom:16px}
.form-label{font-size:13px;font-weight:600;color:#555;margin-bottom:6px;display:block}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.icon-picker{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.icon-opt{width:40px;height:40px;border-radius:10px;border:1.5px solid #e0e0e0;display:flex;align-items:center;justify-content:center;font-size:20px;cursor:pointer;transition:all .15s}
.icon-opt.selected,.icon-opt:hover{border-color:#3BAF85;background:#e8f5ee}
.trait-opts{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.trait-opt{padding:6px 14px;border-radius:20px;font-size:13px;border:1.5px solid #e0e0e0;cursor:pointer;transition:all .15s;background:#fff}
.trait-opt.selected{background:#3BAF85;border-color:#3BAF85;color:#fff}
.trait-opt:hover:not(.selected){border-color:#3BAF85;color:#3BAF85}
.empty-state{text-align:center;padding:48px 0;color:#aaa}
.empty-state p{font-size:15px;margin-top:8px}
.loading{text-align:center;padding:60px;color:#aaa;font-size:15px}
.top-bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;flex-wrap:wrap;gap:12px}
.section-header{display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.divider{height:1px;background:#f0f0f0;margin:20px 0}
.text-green{color:#3BAF85}
.text-orange{color:#e67e22}

/* Settings */
.settings-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(max-width:700px){.settings-grid{grid-template-columns:1fr}.form-row{grid-template-columns:1fr}.behavior-grid{grid-template-columns:repeat(auto-fill,minmax(110px,1fr))}.app-body{padding:16px}.header-nav .nav-btn{min-width:56px;padding:6px 10px}}

/* Subject search bar */
.subject-search-wrap{position:relative;margin-bottom:10px}
.subject-search-wrap input{padding-left:34px}
.subject-search-wrap::before{content:'🔍';position:absolute;left:10px;top:50%;transform:translateY(-50%);font-size:14px;pointer-events:none}

/* Mobile toggle button (desktop only) */
.mobile-toggle-btn{background:#f4f5f0;border:1.5px solid #e0e0e0;border-radius:10px;padding:8px 12px;font-size:18px;color:#555;transition:all .2s;margin-left:12px}
.mobile-toggle-btn:hover{border-color:#3BAF85;background:#e8f5ee}

/* Bottom Nav (hidden by default, shown in mobile-view) */
.bottom-nav{display:none;position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid #eaece6;z-index:200;padding:4px 0 env(safe-area-inset-bottom,4px)}
.bnav-btn{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 4px;background:transparent;border:none;color:#bbb;font-size:10px;font-weight:600;transition:color .2s}
.bnav-btn .bnav-icon{font-size:22px;line-height:1}
.bnav-btn.active{color:#3BAF85}
.bnav-btn:hover:not(.active){color:#3BAF85}

/* ========== MOBILE VIEW ========== */
/* Triggered by .mobile-view on body OR screen <= 640px */

body.mobile-view .mobile-toggle-btn,
body.mobile-view #mobile-toggle-btn { display: none }

body.mobile-view .header-nav { display: none }

body.mobile-view .app-header{padding:12px 16px}

body.mobile-view .bottom-nav{display:flex}

body.mobile-view .app-body{padding:12px 14px 80px}

body.mobile-view .card{padding:16px;border-radius:12px;margin-bottom:14px}

body.mobile-view .settings-grid{grid-template-columns:1fr}
body.mobile-view .form-row{grid-template-columns:1fr}

/* Subject horizontal scroll on mobile */
body.mobile-view .subject-scroll-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:6px;margin-left:-14px;margin-right:-14px;padding-left:14px;padding-right:14px}
body.mobile-view .subject-grid{flex-wrap:nowrap;width:max-content}
body.mobile-view .subject-card{width:100px;min-height:88px}

/* Behavior grid larger touch targets */
body.mobile-view .behavior-grid{grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:10px}
body.mobile-view .behavior-card{padding:14px 8px}
body.mobile-view .behavior-name{font-size:12px}

/* Confirm panel full-width buttons on mobile */
body.mobile-view .confirm-actions{flex-direction:column-reverse;gap:10px}
body.mobile-view .confirm-actions .btn-confirm,
body.mobile-view .confirm-actions .btn-cancel{width:100%;justify-content:center;padding:14px}
body.mobile-view .confirm-subject{font-size:17px}

/* Analytics trait card: hidden on desktop, visible on mobile only */
.analytics-trait-card{display:none}
body.mobile-view .analytics-trait-card{display:block}
.trait-summary-table{display:none}
body.mobile-view .trait-summary-table{display:table}
body.mobile-view .chart-wrap{display:none}

/* Analytics filter grid (desktop: flex row) */
.analytics-filter-grid{display:flex;flex-wrap:wrap;gap:10px}
.analytics-filter-grid>div{display:contents}


/* Analytics filter grid (mobile: 2-col grid) */
body.mobile-view .analytics-filter-grid{display:grid;gap:8px}
body.mobile-view .analytics-filter-grid>div{display:block}
body.mobile-view .analytics-filter-grid.has-cat1{grid-template-areas:"group cat1" "subject subject" "period period";grid-template-columns:1fr 1fr}
body.mobile-view .analytics-filter-grid.no-cat1{grid-template-areas:"group subject" "period period";grid-template-columns:1fr 1fr}
body.mobile-view .af-group{grid-area:group}
body.mobile-view .af-cat1{grid-area:cat1}
body.mobile-view .af-subject{grid-area:subject}
body.mobile-view .af-period{grid-area:period}

/* Toast above bottom nav on mobile */
body.mobile-view #toast{bottom:80px}

/* Filter pills wrap on mobile */
body.mobile-view .filter-pills{flex-wrap:wrap;gap:6px}

/* Table scroll on mobile (scoped to list page only) */
body.mobile-view .table-wrap{overflow-x:auto}
body.mobile-view #page-list table{min-width:560px}

/* Auto-apply on real small screens */
@media(max-width:640px){
  body:not(.mobile-view) .header-nav{display:none}
  body:not(.mobile-view) .bottom-nav{display:flex}
  body:not(.mobile-view) .app-body{padding:12px 14px 80px}
  body:not(.mobile-view) .card{padding:16px;border-radius:12px;margin-bottom:14px}
  body:not(.mobile-view) .settings-grid{grid-template-columns:1fr}
  body:not(.mobile-view) .form-row{grid-template-columns:1fr}
  body:not(.mobile-view) .subject-scroll-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:6px;margin-left:-14px;margin-right:-14px;padding-left:14px;padding-right:14px}
  body:not(.mobile-view) .subject-grid{flex-wrap:nowrap;width:max-content}
  body:not(.mobile-view) .subject-card{width:100px;min-height:88px}
  body:not(.mobile-view) .behavior-grid{grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:10px}
  body:not(.mobile-view) .confirm-actions{flex-direction:column-reverse;gap:10px}
  body:not(.mobile-view) .confirm-actions .btn-confirm,body:not(.mobile-view) .confirm-actions .btn-cancel{width:100%;justify-content:center;padding:14px}
  body:not(.mobile-view) .analytics-trait-card{display:block}
  body:not(.mobile-view) .trait-summary-table{display:table}
  body:not(.mobile-view) .chart-wrap{display:none}
  body:not(.mobile-view) .analytics-filter-grid{display:grid;gap:8px}
  body:not(.mobile-view) .analytics-filter-grid>div{display:block}
  body:not(.mobile-view) .analytics-filter-grid.has-cat1{grid-template-areas:"group cat1" "subject subject" "period period";grid-template-columns:1fr 1fr}
  body:not(.mobile-view) .analytics-filter-grid.no-cat1{grid-template-areas:"group subject" "period period";grid-template-columns:1fr 1fr}
  body:not(.mobile-view) .af-group{grid-area:group}
  body:not(.mobile-view) .af-cat1{grid-area:cat1}
  body:not(.mobile-view) .af-subject{grid-area:subject}
  body:not(.mobile-view) .af-period{grid-area:period}
  body:not(.mobile-view) .score-cards{grid-template-columns:repeat(2,1fr)}
  body:not(.mobile-view) #toast{bottom:80px}
  body:not(.mobile-view) .filter-pills{flex-wrap:wrap}
  body:not(.mobile-view) .table-wrap{overflow-x:auto}
  body:not(.mobile-view) #page-list table{min-width:560px}
  body:not(.mobile-view) .app-header{padding:12px 16px}
  .mobile-toggle-btn{display:none}
}
.inline-form{display:flex;gap:8px;align-items:center}
.inline-form input{flex:1}
.group-badge{display:inline-block;padding:4px 12px;border-radius:20px;background:#e8f5ee;color:#3BAF85;font-size:12px;font-weight:700}
.highlight-note{background:#fff8e1;border-left:3px solid #ffc107;padding:10px 14px;border-radius:0 8px 8px 0;font-size:13px;color:#7a6000;margin-bottom:16px}