:root{
  --bg:#f5f5f0;--surface:#ffffff;--surface2:#f0efea;--border:#e2e1da;
  --text:#1a1a18;--text-muted:#74746e;
  --accent:#2d7dd2;--accent-soft:#deeaf8;--accent-dark:#1a5fa3;
  --green:#22c55e;--green-soft:#dcfce7;
  --amber:#f59e0b;--amber-soft:#fef3c7;
  --red:#ef4444;--red-soft:#fee2e2;
  --purple:#8b5cf6;--purple-soft:#ede9fe;
  --shadow:0 1px 3px rgba(0,0,0,.07),0 4px 12px rgba(0,0,0,.04);
  --shadow-md:0 4px 20px rgba(0,0,0,.12);
  --radius:10px;--radius-sm:6px;
  --sidebar-w:230px;--header-h:60px;
  --font:'DM Sans',sans-serif;--mono:'DM Mono',monospace;
  --transition:180ms ease;
}
[data-theme="dark"]{
  --bg:#111110;--surface:#1c1c1a;--surface2:#242422;--border:#2e2e2b;
  --text:#f0f0ea;--text-muted:#8a8a82;
  --accent:#4a9ded;--accent-soft:#1a2d40;--accent-dark:#6bb4f5;
  --green-soft:#14321e;--amber-soft:#302008;--red-soft:#2e1010;--purple-soft:#1e1530;
  --shadow:0 1px 3px rgba(0,0,0,.25),0 4px 12px rgba(0,0,0,.20);
  --shadow-md:0 4px 20px rgba(0,0,0,.40);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:14px;scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;transition:background var(--transition),color var(--transition)}
a{color:inherit;text-decoration:none}
button{font-family:var(--font);cursor:pointer;border:none;background:none}
input,select,textarea{font-family:var(--font)}ul{list-style:none}

.app{display:flex;min-height:100vh}

/* SIDEBAR */
.sidebar{width:var(--sidebar-w);background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;top:0;left:0;height:100vh;overflow-y:auto;z-index:100;transition:transform var(--transition),background var(--transition)}
.sidebar-logo{display:flex;align-items:center;gap:8px;padding:18px 16px 14px;border-bottom:1px solid var(--border)}
.sidebar-logo .logo-mark{width:36px;height:36px;border-radius:10px;background:var(--accent);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.sidebar-logo .logo-mark svg{width:18px;height:18px;fill:#fff}
.sidebar-logo .logo-text{font-size:1.15rem;font-weight:700;letter-spacing:-.3px;color:var(--text)}
.sidebar-logo .logo-text span{color:var(--accent)}
.sidebar-section{padding:12px 0 4px}
.sidebar-section-label{font-size:.7rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);padding:0 16px 6px}
.sidebar-item{display:flex;align-items:center;gap:8px;padding:7px 16px;font-size:.88rem;font-weight:500;color:var(--text-muted);cursor:pointer;transition:all var(--transition);position:relative}
.sidebar-item:hover{color:var(--text);background:var(--surface2)}
.sidebar-item.active{color:var(--accent);background:var(--accent-soft);font-weight:600}
.sidebar-item.active::before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:60%;border-radius:0 3px 3px 0;background:var(--accent)}
.sidebar-item .icon{width:16px;height:16px;flex-shrink:0;opacity:.8}
.sidebar-item .badge{margin-left:auto;font-size:.7rem;font-weight:600;background:var(--accent-soft);color:var(--accent);padding:1px 6px;border-radius:20px}
.sidebar-item.overdue-item .badge{background:var(--red-soft);color:var(--red)}
.sidebar-item.today-item .badge{background:var(--amber-soft);color:var(--amber)}
.sidebar-divider{height:1px;background:var(--border);margin:8px 16px}

.main{margin-left:var(--sidebar-w);flex:1;display:flex;flex-direction:column;min-height:100vh}

/* HEADER */
.header{height:var(--header-h);background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;gap:12px;padding:0 20px;position:sticky;top:0;z-index:90;transition:background var(--transition)}
.header-search{flex:1;max-width:340px;display:flex;align-items:center;gap:8px;background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:7px 12px;transition:border var(--transition),background var(--transition)}
.header-search:focus-within{border-color:var(--accent)}
.header-search svg{width:14px;height:14px;color:var(--text-muted);flex-shrink:0}
.header-search input{background:none;border:none;outline:none;font-size:.88rem;color:var(--text);width:100%}
.header-search input::placeholder{color:var(--text-muted)}
.header-spacer{flex:1}
.header-actions{display:flex;align-items:center;gap:8px}

.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:var(--radius-sm);font-size:.83rem;font-weight:600;transition:all var(--transition);cursor:pointer}
.btn-ghost{color:var(--text-muted);border:1px solid var(--border)}
.btn-ghost:hover{color:var(--text);background:var(--surface2)}
.btn-primary{background:var(--accent);color:#fff;border:1px solid transparent}
.btn-primary:hover{background:var(--accent-dark)}
.btn-danger{background:var(--red);color:#fff;border:1px solid transparent}
.btn-danger:hover{background:#dc2626}
.btn-google{background:var(--surface2);color:var(--text);border:1px solid var(--border);font-size:.82rem}
.btn-google:hover{border-color:var(--accent);color:var(--accent)}
.btn-google svg{width:14px;height:14px}
.btn-google-signed{background:var(--green-soft);color:var(--green);border:1px solid var(--green);font-size:.82rem}
.btn-google-signed:hover{background:#bbf7d0}

.icon-action-btn{width:34px;height:34px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;border:1px solid var(--border);color:var(--text-muted);transition:all var(--transition)}
.icon-action-btn:hover{color:var(--text);background:var(--surface2)}
.icon-action-btn svg{width:16px;height:16px}

.avatar{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--purple));display:flex;align-items:center;justify-content:center;font-size:.78rem;font-weight:700;color:#fff;flex-shrink:0;cursor:pointer;transition:box-shadow var(--transition)}
.avatar:hover{box-shadow:0 0 0 3px var(--accent-soft)}

.content{padding:24px;flex:1}
.content-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:20px;gap:12px;flex-wrap:wrap}
.content-title{font-size:1.4rem;font-weight:700;letter-spacing:-.4px}
.content-subtitle{font-size:.83rem;color:var(--text-muted);margin-top:2px}

/* STATS */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:24px}
.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;transition:box-shadow var(--transition),background var(--transition)}
.stat-card:hover{box-shadow:var(--shadow-md)}
.stat-card .stat-label{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-bottom:6px}
.stat-card .stat-value{font-size:1.8rem;font-weight:700;line-height:1;letter-spacing:-.5px}
.stat-card .stat-sub{font-size:.75rem;color:var(--text-muted);margin-top:4px}
.stat-total .stat-value{color:var(--text)}.stat-progress .stat-value{color:var(--accent)}.stat-overdue .stat-value{color:var(--red)}.stat-done .stat-value{color:var(--green)}

/* TABLE */
.section-bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;gap:12px;flex-wrap:wrap}
.section-bar-left{display:flex;align-items:center;gap:10px}
.section-title{font-size:.95rem;font-weight:700}
.filter-select{background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:5px 10px;font-size:.8rem;color:var(--text);outline:none;cursor:pointer;transition:border var(--transition)}
.filter-select:focus{border-color:var(--accent)}
.table-wrap{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.table-wrap table{width:100%;border-collapse:collapse}
.table-wrap thead tr{border-bottom:1px solid var(--border);background:var(--surface2)}
.table-wrap thead th{padding:10px 14px;text-align:left;font-size:.73rem;font-weight:600;letter-spacing:.07em;text-transform:uppercase;color:var(--text-muted);white-space:nowrap}
.table-wrap tbody tr{border-bottom:1px solid var(--border);transition:background var(--transition)}
.table-wrap tbody tr:last-child{border-bottom:none}
.table-wrap tbody tr:hover{background:var(--surface2)}
.table-wrap tbody td{padding:12px 14px;font-size:.86rem;vertical-align:middle}
.assign-title{font-weight:600;color:var(--text)}
.assign-notes{font-size:.76rem;color:var(--text-muted);margin-top:2px;max-width:240px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.subject-pill{display:inline-block;padding:2px 8px;border-radius:20px;font-size:.73rem;font-weight:600;white-space:nowrap}
.subject-pill.s-dynamic-0{background:#dbeafe;color:#1d4ed8}
.subject-pill.s-dynamic-1{background:#f3e8ff;color:#6b21a8}
.subject-pill.s-dynamic-2{background:#dcfce7;color:#15803d}
.subject-pill.s-dynamic-3{background:#fef9c3;color:#92400e}
.subject-pill.s-dynamic-4{background:#ffedd5;color:#c2410c}
.subject-pill.s-dynamic-5{background:#fce7f3;color:#9d174d}
.subject-pill.s-dynamic-6{background:#e0e7ff;color:#3730a3}
.subject-pill.s-dynamic-7{background:#d1fae5;color:#065f46}
.subject-pill.s-dynamic-8{background:#fde8d8;color:#9a3412}
.subject-pill.s-dynamic-9{background:#e0f2fe;color:#0369a1}
[data-theme="dark"] .subject-pill.s-dynamic-0{background:#1e3a5f;color:#93c5fd}
[data-theme="dark"] .subject-pill.s-dynamic-1{background:#2e1a4f;color:#c4b5fd}
[data-theme="dark"] .subject-pill.s-dynamic-2{background:#14321e;color:#86efac}
[data-theme="dark"] .subject-pill.s-dynamic-3{background:#2c2008;color:#fde68a}
[data-theme="dark"] .subject-pill.s-dynamic-4{background:#2c1a08;color:#fdba74}
[data-theme="dark"] .subject-pill.s-dynamic-5{background:#2e0f1f;color:#f9a8d4}
[data-theme="dark"] .subject-pill.s-dynamic-6{background:#1e1a3f;color:#a5b4fc}
[data-theme="dark"] .subject-pill.s-dynamic-7{background:#052e16;color:#6ee7b7}
[data-theme="dark"] .subject-pill.s-dynamic-8{background:#431407;color:#fb923c}
[data-theme="dark"] .subject-pill.s-dynamic-9{background:#082f49;color:#7dd3fc}
.due-date{font-size:.83rem;font-family:var(--mono);color:var(--text)}
.due-date.overdue{color:var(--red);font-weight:600}.due-date.today{color:var(--amber);font-weight:600}
.priority-dot{display:inline-flex;align-items:center;gap:5px;font-size:.8rem;font-weight:600}
.priority-dot::before{content:'';width:7px;height:7px;border-radius:50%}
.p-high{color:var(--red)}.p-high::before{background:var(--red)}.p-medium{color:var(--amber)}.p-medium::before{background:var(--amber)}.p-low{color:var(--green)}.p-low::before{background:var(--green)}
.status-badge{display:inline-flex;align-items:center;gap:4px;padding:3px 8px;border-radius:20px;font-size:.75rem;font-weight:600}
.st-todo{background:var(--surface2);color:var(--text-muted)}.st-progress{background:var(--accent-soft);color:var(--accent)}.st-done{background:var(--green-soft);color:var(--green)}.st-overdue{background:var(--red-soft);color:var(--red)}
.gcal-link{display:inline-flex;align-items:center;gap:4px;font-size:.76rem;color:var(--accent);font-weight:500;padding:3px 8px;border-radius:var(--radius-sm);border:1px solid var(--accent-soft);transition:all var(--transition)}
.gcal-link:hover{background:var(--accent-soft)}.gcal-link svg{width:11px;height:11px}
.row-actions{display:flex;align-items:center;gap:6px}
.icon-btn{width:28px;height:28px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:var(--text-muted);transition:all var(--transition);border:1px solid transparent}
.icon-btn:hover{color:var(--red);background:var(--red-soft);border-color:var(--red-soft)}.icon-btn svg{width:13px;height:13px}
.empty-state{text-align:center;padding:48px 20px;color:var(--text-muted)}
.empty-state svg{width:40px;height:40px;margin-bottom:12px;opacity:.3}.empty-state p{font-size:.9rem}

/* MODAL */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.4);display:flex;align-items:center;justify-content:center;z-index:200;opacity:0;pointer-events:none;transition:opacity var(--transition);backdrop-filter:blur(4px)}
.modal-overlay.open{opacity:1;pointer-events:all}
.modal{background:var(--surface);border:1px solid var(--border);border-radius:14px;width:min(520px,90vw);max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-md);transform:translateY(12px);transition:transform var(--transition)}
.modal-overlay.open .modal{transform:translateY(0)}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px 16px;border-bottom:1px solid var(--border)}
.modal-title{font-size:1rem;font-weight:700}
.modal-close{width:30px;height:30px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:var(--text-muted);transition:all var(--transition)}
.modal-close:hover{background:var(--surface2);color:var(--text)}.modal-close svg{width:16px;height:16px}
.modal-body{padding:20px 24px}.modal-footer{padding:16px 24px;border-top:1px solid var(--border);display:flex;gap:10px;justify-content:flex-end}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-group{margin-bottom:14px}
.form-group label{display:block;font-size:.78rem;font-weight:600;color:var(--text-muted);margin-bottom:5px;letter-spacing:.03em}
.form-group input,.form-group select,.form-group textarea{width:100%;background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:9px 12px;font-size:.86rem;color:var(--text);outline:none;transition:border var(--transition),background var(--transition)}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--accent);background:var(--surface)}
.form-group textarea{resize:vertical;min-height:72px}
.form-group.error input,.form-group.error select{border-color:var(--red)!important}
.form-error{font-size:.74rem;color:var(--red);margin-top:4px;display:none}
.form-group.error .form-error{display:block}

/* PASSWORD */
.pw-wrap{position:relative}
.pw-wrap input{padding-right:38px}
.pw-eye{position:absolute;right:10px;top:50%;transform:translateY(-50%);color:var(--text-muted);cursor:pointer;display:flex;align-items:center;padding:2px;transition:color var(--transition)}
.pw-eye:hover{color:var(--text)}.pw-eye svg{width:15px;height:15px}
.pw-strength{margin-top:8px}
.pw-strength-bar{height:4px;border-radius:4px;background:var(--border);overflow:hidden;margin-bottom:6px}
.pw-strength-fill{height:100%;border-radius:4px;transition:width .3s ease,background .3s ease;width:0}
.pw-strength-text{font-size:.73rem;font-weight:600}
.pw-req{margin-top:8px;display:grid;grid-template-columns:1fr 1fr;gap:3px 12px}
.pw-req-item{font-size:.73rem;color:var(--text-muted);display:flex;align-items:center;gap:4px;transition:color var(--transition)}
.pw-req-item.met{color:var(--green)}.pw-req-item::before{content:'○';font-size:.65rem;flex-shrink:0}.pw-req-item.met::before{content:'✓';color:var(--green)}

/* TOGGLE */
.toggle-row{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;background:var(--surface2);border-radius:var(--radius-sm);border:1px solid var(--border);margin-bottom:14px}
.toggle-label{font-size:.85rem;font-weight:600}.toggle-sub{font-size:.76rem;color:var(--text-muted)}
.toggle{position:relative;width:40px;height:22px;flex-shrink:0}
.toggle input{opacity:0;width:0;height:0}
.toggle-slider{position:absolute;inset:0;background:var(--border);border-radius:22px;transition:background var(--transition);cursor:pointer}
.toggle-slider::before{content:'';position:absolute;width:16px;height:16px;border-radius:50%;background:#fff;left:3px;top:3px;transition:transform var(--transition);box-shadow:0 1px 3px rgba(0,0,0,.2)}
.toggle input:checked + .toggle-slider{background:var(--accent)}
.toggle input:checked + .toggle-slider::before{transform:translateX(18px)}

/* GOOGLE AUTH MODAL */
.gauth-modal{width:min(420px,92vw)}
.gauth-hero{display:flex;flex-direction:column;align-items:center;padding:28px 24px 0;text-align:center}
.gauth-g{width:44px;height:44px;margin-bottom:12px}
.gauth-title{font-size:1.1rem;font-weight:700;letter-spacing:-.3px}
.gauth-sub{font-size:.82rem;color:var(--text-muted);margin-top:4px}
.gauth-user-card{display:flex;align-items:center;gap:12px;padding:12px;background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:16px}
.gauth-user-av{width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,#ea4335,#fbbc04,#34a853,#4285f4);display:flex;align-items:center;justify-content:center;font-size:.9rem;font-weight:700;color:#fff;flex-shrink:0}
.gauth-user-name{font-size:.88rem;font-weight:600}.gauth-user-email{font-size:.78rem;color:var(--text-muted)}
.gauth-connected-badge{margin-left:auto;display:flex;align-items:center;gap:4px;font-size:.72rem;font-weight:600;color:var(--green);background:var(--green-soft);padding:3px 8px;border-radius:20px;flex-shrink:0}

/* NOTIFICATION PANEL */
.notif-panel{position:fixed;top:calc(var(--header-h) + 8px);right:16px;width:340px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-md);z-index:300;transform:translateY(-8px) scale(.97);opacity:0;pointer-events:none;transition:all .2s ease;overflow:hidden}
.notif-panel.open{transform:translateY(0) scale(1);opacity:1;pointer-events:all}
.notif-panel-header{display:flex;align-items:center;justify-content:space-between;padding:14px 16px 10px;border-bottom:1px solid var(--border)}
.notif-panel-title{font-size:.88rem;font-weight:700}
.notif-panel-actions{display:flex;gap:6px;align-items:center}
.np-action{font-size:.74rem;font-weight:600;cursor:pointer;padding:2px 7px;border-radius:4px;transition:background var(--transition)}
.np-action.read{color:var(--accent)}.np-action.read:hover{background:var(--accent-soft)}
.np-action.clear{color:var(--red)}.np-action.clear:hover{background:var(--red-soft)}
.notif-list{max-height:360px;overflow-y:auto}
.notif-item{display:flex;gap:10px;padding:12px 16px;border-bottom:1px solid var(--border);cursor:pointer;transition:background var(--transition);position:relative}
.notif-item:last-child{border-bottom:none}
.notif-item:hover{background:var(--surface2)}
.notif-item.unread::before{content:'';position:absolute;left:6px;top:50%;transform:translateY(-50%);width:5px;height:5px;border-radius:50%;background:var(--accent)}
.notif-item-icon{width:30px;height:30px;border-radius:8px;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:.82rem}
.ni-warn{background:var(--amber-soft)}.ni-danger{background:var(--red-soft)}.ni-success{background:var(--green-soft)}.ni-info{background:var(--accent-soft)}
.notif-item-body{flex:1;min-width:0}
.notif-item-title{font-size:.82rem;font-weight:600;margin-bottom:1px}
.notif-item-msg{font-size:.75rem;color:var(--text-muted);line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.notif-item-time{font-size:.7rem;color:var(--text-muted);margin-top:2px;font-family:var(--mono)}
.notif-empty{text-align:center;padding:32px 16px;color:var(--text-muted)}
.notif-empty svg{width:32px;height:32px;opacity:.25;margin-bottom:8px;display:block;margin-left:auto;margin-right:auto}
.notif-empty p{font-size:.82rem}
.notif-panel-footer{padding:10px 16px;border-top:1px solid var(--border);text-align:center}
.notif-perm-btn{font-size:.77rem;color:var(--accent);font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:4px}
.notif-perm-btn:hover{text-decoration:underline}

/* BELL BADGE */
.notif-bell-wrap{position:relative}
.notif-count-badge{position:absolute;top:-5px;right:-5px;min-width:17px;height:17px;background:var(--red);color:#fff;font-size:.62rem;font-weight:700;border-radius:10px;display:none;align-items:center;justify-content:center;padding:0 3px;border:2px solid var(--surface)}
.notif-count-badge.active{display:flex}

/* TOAST */
.toast-container{position:fixed;bottom:20px;right:20px;display:flex;flex-direction:column;gap:8px;z-index:9999;pointer-events:none}
.toast{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px 16px;box-shadow:var(--shadow-md);max-width:320px;display:flex;align-items:flex-start;gap:10px;pointer-events:all;animation:slideIn .25s ease;transition:opacity .25s ease,transform .25s ease}
.toast.removing{opacity:0;transform:translateX(20px)}
@keyframes slideIn{from{opacity:0;transform:translateX(20px)}to{opacity:1;transform:translateX(0)}}
.toast-icon{width:28px;height:28px;border-radius:8px;flex-shrink:0;display:flex;align-items:center;justify-content:center}
.toast-icon svg{width:14px;height:14px}
.toast-success .toast-icon{background:var(--green-soft);color:var(--green)}
.toast-warning .toast-icon{background:var(--amber-soft);color:var(--amber)}
.toast-danger .toast-icon{background:var(--red-soft);color:var(--red)}
.toast-info .toast-icon{background:var(--accent-soft);color:var(--accent)}
.toast-body{flex:1}
.toast-title{font-size:.82rem;font-weight:700;margin-bottom:1px}
.toast-msg{font-size:.78rem;color:var(--text-muted);line-height:1.4}

.add-subject-btn{display:flex;align-items:center;gap:7px;padding:7px 16px;font-size:.82rem;font-weight:600;color:var(--accent);cursor:pointer;transition:all var(--transition);width:100%;text-align:left;border:none;background:none;font-family:var(--font)}
.add-subject-btn:hover{background:var(--accent-soft)}
.add-subject-btn svg{width:14px;height:14px;flex-shrink:0}
.classroom-banner{background:var(--accent-soft);border:1px solid var(--accent);border-radius:var(--radius-sm);padding:10px 14px;margin:8px 10px;font-size:.77rem;color:var(--accent);line-height:1.5;display:none}
.classroom-banner strong{display:block;font-weight:700;margin-bottom:2px}
.no-subjects-msg{padding:10px 16px;font-size:.78rem;color:var(--text-muted);font-style:italic}
/* Subject modal */
.subject-color-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;margin-top:4px}
.subject-color-swatch{width:28px;height:28px;border-radius:6px;cursor:pointer;border:2px solid transparent;transition:transform var(--transition),border-color var(--transition)}
.subject-color-swatch:hover{transform:scale(1.1)}
.subject-color-swatch.selected{border-color:var(--text);transform:scale(1.1)}

/* ── CLASSROOM SYNC OVERLAY ── */
.sync-overlay{position:fixed;inset:0;z-index:8500;background:rgba(0,0,0,.55);backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .3s ease}
.sync-overlay.active{opacity:1;pointer-events:all}
.sync-card{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:36px 40px;text-align:center;width:min(380px,90vw);box-shadow:var(--shadow-md)}
.sync-spinner{width:52px;height:52px;margin:0 auto 18px;border-radius:50%;border:3px solid var(--border);border-top-color:var(--accent);animation:spin .9s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.sync-icon-done{width:52px;height:52px;margin:0 auto 18px;border-radius:50%;background:var(--green-soft);display:none;align-items:center;justify-content:center;font-size:1.6rem}
.sync-title{font-size:1.05rem;font-weight:700;margin-bottom:6px}
.sync-sub{font-size:.82rem;color:var(--text-muted);line-height:1.6;margin-bottom:18px}
.sync-steps{text-align:left;display:flex;flex-direction:column;gap:8px;margin-bottom:20px}
.sync-step{display:flex;align-items:center;gap:10px;font-size:.81rem;color:var(--text-muted);transition:color .3s}
.sync-step.done{color:var(--green)}.sync-step.active{color:var(--text);font-weight:600}
.sync-step-dot{width:18px;height:18px;border-radius:50%;border:2px solid var(--border);flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:.6rem;transition:all .3s}
.sync-step.done .sync-step-dot{background:var(--green);border-color:var(--green);color:#fff}
.sync-step.active .sync-step-dot{border-color:var(--accent);animation:pulse 1s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(45,125,210,.4)}50%{box-shadow:0 0 0 5px rgba(45,125,210,0)}}
.sync-summary{background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 14px;font-size:.8rem;color:var(--text-muted);line-height:1.8;display:none;text-align:left;margin-bottom:16px}
.sync-summary strong{color:var(--text)}

@media(max-width:680px){.sidebar{transform:translateX(-100%)}.sidebar.open{transform:translateX(0)}.main{margin-left:0}.stats{grid-template-columns:1fr 1fr}.table-wrap{overflow-x:auto}.content{padding:16px}.notif-panel{right:8px;left:8px;width:auto}}

/* ── LOGIN PORTAL ── */
#login-portal{position:fixed;inset:0;z-index:9000;display:flex;align-items:center;justify-content:center;padding:16px;background:#0d1526}
#login-portal::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 80% 60% at 50% 20%,rgba(45,125,210,.25) 0%,transparent 70%);pointer-events:none}
#login-portal canvas{position:absolute;inset:0;pointer-events:none;opacity:.4}
.lp-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);border-radius:22px;width:min(440px,100%);backdrop-filter:blur(24px);box-shadow:0 32px 64px rgba(0,0,0,.5);position:relative;overflow:hidden;animation:cardIn .45s cubic-bezier(.22,1,.36,1)}
@keyframes cardIn{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.lp-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,#4a9ded,#6bb4f5,#4a9ded,transparent)}
.lp-header{padding:36px 36px 0;text-align:center}
.lp-logo{display:inline-flex;align-items:center;gap:12px;margin-bottom:28px}
.lp-logo-mark{width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,#2d7dd2,#4a9ded);display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(45,125,210,.4)}
.lp-logo-mark svg{width:26px;height:26px;fill:#fff}
.lp-logo-text{font-size:1.5rem;font-weight:800;letter-spacing:-.5px;color:#fff}
.lp-logo-text span{color:#4a9ded}
.lp-tabs{display:flex;background:rgba(255,255,255,.06);border-radius:10px;padding:3px;margin-bottom:28px}
.lp-tab{flex:1;padding:8px;border-radius:8px;font-size:.83rem;font-weight:600;color:rgba(255,255,255,.5);cursor:pointer;transition:all .2s;text-align:center;border:none;background:none}
.lp-tab.active{background:rgba(255,255,255,.12);color:#fff;box-shadow:0 2px 8px rgba(0,0,0,.2)}
.lp-body{padding:0 36px 36px}
.lp-google-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:10px;padding:13px 16px;border-radius:12px;background:rgba(255,255,255,.95);border:none;cursor:pointer;font-size:.9rem;font-weight:700;color:#1a1a18;transition:all .2s;margin-bottom:20px;font-family:var(--font)}
.lp-google-btn:hover{background:#fff;box-shadow:0 6px 20px rgba(0,0,0,.25);transform:translateY(-1px)}
.lp-google-btn svg{width:20px;height:20px;flex-shrink:0}
.lp-divider{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.lp-divider::before,.lp-divider::after{content:'';flex:1;height:1px;background:rgba(255,255,255,.12)}
.lp-divider span{font-size:.75rem;color:rgba(255,255,255,.35);font-weight:500;white-space:nowrap}
.lp-form-group{margin-bottom:14px}
.lp-form-group label{display:block;font-size:.75rem;font-weight:600;color:rgba(255,255,255,.5);margin-bottom:6px;letter-spacing:.04em;text-transform:uppercase}
.lp-form-group input{width:100%;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);border-radius:10px;padding:11px 14px;font-size:.88rem;color:#fff;outline:none;transition:all .2s;font-family:var(--font)}
.lp-form-group input::placeholder{color:rgba(255,255,255,.25)}
.lp-form-group input:focus{border-color:rgba(74,157,237,.6);background:rgba(74,157,237,.08);box-shadow:0 0 0 3px rgba(74,157,237,.15)}
.lp-pw-wrap{position:relative}
.lp-pw-wrap input{padding-right:42px}
.lp-pw-eye{position:absolute;right:12px;top:50%;transform:translateY(-50%);color:rgba(255,255,255,.3);cursor:pointer;transition:color .2s;display:flex}
.lp-pw-eye:hover{color:rgba(255,255,255,.7)}
.lp-pw-eye svg{width:16px;height:16px}
.lp-strength-wrap{margin-top:8px}
.lp-strength-bars{display:flex;gap:4px;margin-bottom:5px}
.lp-strength-bar{flex:1;height:3px;border-radius:3px;background:rgba(255,255,255,.1);transition:background .3s}
.lp-strength-bar.weak{background:#ef4444}.lp-strength-bar.fair{background:#f59e0b}.lp-strength-bar.good{background:#22c55e}.lp-strength-bar.strong{background:#4a9ded}
.lp-strength-label{font-size:.72rem;font-weight:600;color:rgba(255,255,255,.4)}
.lp-req-grid{display:grid;grid-template-columns:1fr 1fr;gap:4px 8px;margin-top:8px}
.lp-req{font-size:.71rem;color:rgba(255,255,255,.35);display:flex;align-items:center;gap:4px;transition:color .25s}
.lp-req.met{color:#22c55e}
.lp-req::before{content:'○';font-size:.6rem;flex-shrink:0}.lp-req.met::before{content:'✓'}
.lp-submit{width:100%;padding:13px;border-radius:12px;background:linear-gradient(135deg,#2d7dd2,#4a9ded);border:none;color:#fff;font-size:.92rem;font-weight:700;cursor:pointer;font-family:var(--font);transition:all .2s;margin-top:6px;letter-spacing:.01em}
.lp-submit:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(45,125,210,.4)}
.lp-submit:active{transform:translateY(0)}
.lp-footer-note{text-align:center;font-size:.76rem;color:rgba(255,255,255,.3);margin-top:16px;line-height:1.5}
.lp-footer-note a{color:rgba(74,157,237,.8);text-decoration:none;cursor:pointer}
.lp-footer-note a:hover{color:#4a9ded}
.lp-emoji-hint{font-size:.82rem;color:rgba(255,255,255,.45);text-align:center;margin-bottom:18px;line-height:1.5}
.lp-grade-row{display:flex;gap:8px}
.lp-grade-row .lp-form-group{flex:1}
.lp-name-row{display:flex;gap:8px}
.lp-name-row .lp-form-group{flex:1}
.lp-select{width:100%;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);border-radius:10px;padding:11px 14px;font-size:.88rem;color:#fff;outline:none;transition:all .2s;font-family:var(--font);cursor:pointer}
.lp-select:focus{border-color:rgba(74,157,237,.6);background:rgba(74,157,237,.08)}
.lp-select option{background:#1a2340;color:#fff}
.lp-badge-row{display:flex;gap:6px;flex-wrap:wrap;margin-top:4px}
.lp-badge{padding:5px 10px;border-radius:20px;border:1px solid rgba(255,255,255,.15);font-size:.72rem;font-weight:600;color:rgba(255,255,255,.5);cursor:pointer;transition:all .2s;background:rgba(255,255,255,.04)}
.lp-badge.selected{background:rgba(74,157,237,.2);border-color:#4a9ded;color:#4a9ded}
.lp-form-group small{display:block;font-size:.7rem;color:rgba(255,255,255,.3);margin-top:4px}