/* ==========================================
   CLASSROOM INSTRUCTOR — My Classes interface
   Multiple animation blocks across 4 sections:
     1. Creating a Class (empty state -> + -> side drawer -> fill -> Create)
     2. Table View (sort, status, actions, click name)
     3. Class View (toggle, cards, 3-dot menu, days-left, enter)
     4. Inside a Class (Assignments / Students tab switch)
   ========================================== */

/* === CONTAINER (shared base) === */
.guide-anim{border:1px solid #e5e5e0;border-radius:14px;overflow:hidden;margin:24px 0 32px;background:#fff;box-shadow:0 2px 12px rgba(0,0,0,0.04);position:relative;z-index:0}
.ga-slides{position:relative}
.ga-slide{display:none}
.ga-slide.active{display:block}
.ga-viewport{position:relative;height:340px;overflow:hidden;background:#f3f4f6;cursor:pointer}
.ga-info{padding:18px 22px 14px;font-family:var(--db-font,system-ui,sans-serif)}
.ga-step-badge{display:inline-block;font-size:10px;font-weight:700;color:#1967D2;background:#E8F0FE;padding:4px 12px;border-radius:20px;margin-bottom:8px;text-transform:uppercase;letter-spacing:.8px}
.ga-info h3{font-size:16px;font-weight:600;margin-bottom:4px;color:#1a1a1a}
.ga-info p{font-size:13px;color:#6b6b6b;line-height:1.55;margin:0}
.ga-overlay{position:absolute;inset:0;background:rgba(0,0,0,.45);z-index:200;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .25s ease}
.ga-overlay.on{opacity:1;pointer-events:auto}
.ga-overlay-btn{width:50px;height:50px;border-radius:50%;background:rgba(255,255,255,.9);display:flex;align-items:center;justify-content:center;cursor:pointer}
.ga-overlay-btn svg{width:22px;height:22px;color:#333;margin-left:3px}
.ga-reset-float{position:absolute;bottom:8px;right:8px;width:28px;height:28px;border-radius:50%;background:rgba(255,255,255,.85);display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:201;opacity:0;pointer-events:none;transition:opacity .25s ease}
.ga-reset-float.on{opacity:1;pointer-events:auto}
.ga-reset-float svg{width:13px;height:13px;color:#333}
.ga-progress{height:3px;background:#eee;border-radius:2px}
.ga-progress-bar{height:100%;background:#4285f4;transition:width .5s ease;border-radius:2px}
.ga-cursor{position:absolute;width:20px;height:24px;z-index:100;pointer-events:none;opacity:0;filter:drop-shadow(1px 2px 2px rgba(0,0,0,.25))}
.ga-cursor.vis{opacity:1}

/* === SCENE BASE (shared My Classes shell) === */
.sc{position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity .4s ease;font-family:var(--db-font,system-ui,sans-serif)}
.sc.on{opacity:1;pointer-events:auto}

/* === Sidebar (instructor nav) === */
.mc-shell{display:flex;height:100%;background:#fff}
.mc-side{width:108px;background:#fff;border-right:1px solid #eee;padding:12px 0;display:flex;flex-direction:column;gap:1px;flex-shrink:0}
.mc-side-logo{display:flex;align-items:center;gap:5px;padding:0 12px 14px}
.mc-side-logo i{width:18px;height:18px;background:#4285f4;border-radius:5px;display:block}
.mc-side-logo span{font-size:12px;font-weight:600;color:#1a1a1a}
.mc-nav{padding:7px 12px;font-size:9.5px;color:#999;display:flex;align-items:center;gap:7px;margin-right:6px;border-radius:0 7px 7px 0}
.mc-nav i{width:13px;height:13px;border-radius:4px;background:currentColor;opacity:.2;display:block}
.mc-nav.act{background:#4285f4;color:#fff;font-weight:600}
.mc-nav.act i{opacity:.5}

/* === Main body === */
.mc-body{flex:1;background:#f3f4f6;padding:8px 12px;overflow:hidden;position:relative}
.mc-top{display:flex;justify-content:flex-end;align-items:center;gap:7px;margin-bottom:8px}
.mc-uname{font-size:9px;color:#888;text-align:right;line-height:1.3}
.mc-uname b{color:#333;display:block;font-size:10px}
.mc-uname-role{font-size:8px;color:#aaa}
.mc-av{width:24px;height:24px;border-radius:50%;background:#42b883;color:#fff;font-size:10px;font-weight:700;display:flex;align-items:center;justify-content:center}
.mc-crumb{font-size:9px;color:#777;margin-bottom:4px}
.mc-crumb b{color:#333;font-weight:600}
.mc-title-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.mc-title{font-size:14px;font-weight:700;color:#1a1a1a}
.mc-toolbar{display:flex;align-items:center;gap:6px}
.mc-vt{display:flex;border:1px solid #e0e0e0;border-radius:5px;overflow:hidden}
.mc-vt-btn{width:22px;height:20px;display:flex;align-items:center;justify-content:center;font-size:10px;color:#999;cursor:default;background:#fff;transition:background .2s}
.mc-vt-btn.act{background:#4285f4;color:#fff}
.mc-csv{width:22px;height:22px;border:1px solid #e0e0e0;border-radius:5px;display:flex;align-items:center;justify-content:center;font-size:7px;color:#666;background:#fff}
.mc-search{flex:0 0 130px;height:22px;border:1px solid #e0e0e0;border-radius:5px;background:#fff;font-size:9px;color:#aaa;padding:0 8px;display:flex;align-items:center}

/* === Floating + button === */
.mc-fab{position:absolute;bottom:14px;right:14px;width:32px;height:32px;background:#4285f4;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;font-weight:300;line-height:1;box-shadow:0 4px 12px rgba(66,133,244,.3);transition:transform .2s,box-shadow .2s;z-index:5}
.mc-fab.hl{transform:scale(1.15);box-shadow:0 0 0 4px rgba(66,133,244,.3),0 4px 12px rgba(66,133,244,.4)}

/* ==========================================
   SCENE 1 — Empty state + Create Class drawer
   ========================================== */
.mc-empty{background:#fff;border-radius:8px;padding:14px;border:1px solid #eee}
.mc-empty-msg{border:1px solid #d6d6d6;border-radius:8px;padding:14px;font-size:9.5px;color:#333;font-weight:500;line-height:1.45}

/* Side drawer */
.mc-drawer{position:absolute;top:0;right:0;bottom:0;width:55%;background:#fff;border-left:1px solid #ddd;box-shadow:-8px 0 24px rgba(0,0,0,.08);transform:translateX(100%);transition:transform .4s cubic-bezier(.4,0,.2,1);padding:14px 16px;z-index:30;overflow-y:auto;display:flex;flex-direction:column;gap:8px}
.mc-drawer.on{transform:translateX(0)}
.mc-drawer-close{position:absolute;top:8px;right:8px;font-size:14px;color:#999;cursor:default}
.mc-drawer-art{height:60px;display:flex;align-items:center;justify-content:center;margin-bottom:4px}
.mc-drawer-art svg{width:55px;height:55px}
.mc-fld{display:flex;flex-direction:column;gap:2px}
.mc-fld-lbl{font-size:9px;color:#444;font-weight:500}
.mc-fld-inp{height:24px;border:1px solid #ddd;border-radius:5px;background:#fff;padding:0 7px;font-size:10px;color:#1a1a1a;display:flex;align-items:center;transition:border-color .2s,box-shadow .2s}
.mc-fld-inp.fc{border-color:#4285f4;box-shadow:0 0 0 2px rgba(66,133,244,.1)}
.mc-fld-inp.dt{color:#bbb}
.mc-fld-inp.dt.filled{color:#1a1a1a}
.mc-create-btn{height:28px;background:#4285f4;color:#fff;border:none;border-radius:5px;font-size:11px;font-weight:600;display:flex;align-items:center;justify-content:center;margin-top:4px;cursor:default;transition:background .15s,transform .15s}
.mc-create-btn.press{transform:scale(.97);background:#3367c7}
.mc-toast{position:absolute;top:12px;left:50%;transform:translateX(-50%) translateY(-30px);background:#fff;border-radius:8px;padding:8px 14px;box-shadow:0 4px 16px rgba(0,0,0,.15);font-size:10px;color:#333;display:flex;align-items:center;gap:6px;opacity:0;transition:opacity .3s ease,transform .3s ease;z-index:50}
.mc-toast.on{opacity:1;transform:translateX(-50%) translateY(0)}
.mc-toast-ico{width:14px;height:14px;border-radius:50%;background:#1D9E75;color:#fff;font-size:9px;font-weight:700;display:flex;align-items:center;justify-content:center}

/* ==========================================
   SCENE 2 — Table View
   ========================================== */
.mc-table{background:#fff;border-radius:6px;overflow:hidden;font-size:9px}
.mc-thead{display:grid;grid-template-columns:1fr 1.4fr 1.3fr 1.3fr 1fr 1fr;background:#fff;padding:8px 10px;font-weight:600;color:#333;border-bottom:1px solid #eee;font-size:9px}
.mc-thead .th{display:flex;align-items:center;gap:3px}
.mc-thead .th .arr{font-size:7px;color:#bbb}
.mc-thead .th.hl-sort{color:#4285f4}
.mc-thead .th.hl-sort .arr{color:#4285f4}
.mc-trow{display:grid;grid-template-columns:1fr 1.4fr 1.3fr 1.3fr 1fr 1fr;padding:7px 10px;border-bottom:1px solid #f3f3f3;align-items:center;background:#fff;transition:background .2s}
.mc-trow:nth-child(even){background:#fafafa}
.mc-trow.hl-row{background:#eef4ff}
.mc-tcell{font-size:9px;color:#444}
.mc-cn{display:flex;align-items:center;gap:4px}
.mc-cn-ico{font-size:9px}
.mc-cn-name{color:#1a1a1a;font-weight:500;cursor:default;transition:color .2s,background .2s;padding:1px 3px;border-radius:3px}
.mc-cn-name.hl{color:#4285f4;background:#e8f0fe;text-decoration:underline}
.mc-status{display:flex;align-items:center;gap:4px;font-size:9px}
.mc-status::before{content:'';width:6px;height:6px;border-radius:50%;display:inline-block}
.mc-status.active::before{background:#22a06b}
.mc-status.soon::before{background:#e85a5a}
.mc-status.expired::before{background:#e85a5a}
.mc-actions{display:flex;gap:3px}
.mc-action-btn{width:18px;height:18px;border:1px solid #ddd;border-radius:4px;display:flex;align-items:center;justify-content:center;background:#fff;color:#666;font-size:8px;transition:background .2s,border-color .2s,transform .2s}
.mc-action-btn.hl{background:#e8f0fe;border-color:#4285f4;color:#4285f4;transform:scale(1.15)}
.mc-action-btn svg{width:9px;height:9px}

/* ==========================================
   SCENE 3 — Class View (cards)
   ========================================== */
.mc-cards{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;margin-top:4px}
.mc-card{background:#fff;border:1px solid #eee;border-radius:8px;padding:10px;position:relative;opacity:0;transform:translateY(8px);transition:opacity .35s ease,transform .35s ease}
.mc-card.pop{opacity:1;transform:translateY(0)}
.mc-card-top{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:8px}
.mc-card-av{width:24px;height:24px;border-radius:50%;color:#fff;font-size:10px;font-weight:700;display:flex;align-items:center;justify-content:center}
.mc-card-dots{font-size:11px;color:#999;letter-spacing:1px;cursor:default;padding:2px 4px;border-radius:3px;transition:background .2s}
.mc-card-dots.hl{background:#eee;color:#444}
.mc-card-name{font-size:10px;font-weight:700;color:#1a1a1a;margin-bottom:2px}
.mc-card-desc{font-size:8.5px;color:#888;margin-bottom:8px;line-height:1.3}
.mc-card-foot{display:flex;align-items:center;justify-content:space-between}
.mc-card-status{font-size:8.5px;background:#fde0e0;color:#c44;padding:3px 7px;border-radius:4px;display:flex;align-items:center;gap:3px}
.mc-card-status.expired{background:#fde0e0;color:#c44}
.mc-card-arr{width:18px;height:18px;border-radius:4px;display:flex;align-items:center;justify-content:center;color:#666;font-size:11px;cursor:default;transition:background .2s,transform .2s}
.mc-card-arr.hl{background:#e8f0fe;color:#4285f4;transform:scale(1.15)}

/* Pop-up 3-dot menu */
.mc-card-menu{position:absolute;top:30px;right:8px;background:#fff;border-radius:6px;box-shadow:0 4px 16px rgba(0,0,0,.12);padding:4px 0;font-size:9px;opacity:0;transform:translateY(-4px);pointer-events:none;transition:opacity .2s ease,transform .2s ease;z-index:10;min-width:70px}
.mc-card-menu.on{opacity:1;transform:translateY(0);pointer-events:auto}
.mc-menu-item{padding:5px 10px;display:flex;align-items:center;justify-content:space-between;gap:8px;color:#333;cursor:default;transition:background .15s}
.mc-menu-item.hl{background:#f0f4ff;color:#4285f4}
.mc-menu-item svg{width:9px;height:9px;color:#999}

/* ==========================================
   SCENE 4 — Inside a Class (tabs)
   ========================================== */
.mc-tabs{display:flex;background:#fff;border-radius:6px 6px 0 0;overflow:hidden;border-bottom:1px solid #eee}
.mc-tab{padding:7px 14px;font-size:10px;font-weight:600;color:#999;cursor:default;transition:all .2s;border-bottom:2px solid transparent}
.mc-tab.act{color:#4285f4;background:#eef4ff;border-bottom-color:#4285f4;border-radius:6px 6px 0 0;border:1px solid #4285f4}
.mc-tab.hl{background:#f5f5f5;color:#666}
.mc-pane{background:#fff;border:1px solid #eee;border-top:none;border-radius:0 0 6px 6px;padding:8px;min-height:120px;font-size:9px}
.mc-pane-row{display:grid;grid-template-columns:30px 1fr 1fr 1fr 1fr 1fr 1fr;padding:5px 6px;border-bottom:1px solid #f3f3f3;font-size:9px;align-items:center}
.mc-pane-row.hd{background:#fafafa;font-weight:600;color:#444;font-size:8.5px}
.mc-chk{width:11px;height:11px;border:1px solid #ccc;border-radius:2px}

@media(max-width:640px){
  .mc-side{width:72px}
  .mc-cards{grid-template-columns:1fr 1fr}
  .mc-thead,.mc-trow{grid-template-columns:0.8fr 1.5fr 1fr 1fr 0.8fr 0.8fr;font-size:8px}
}