/* ============================================================
   PlayVidya — Student Dashboard CSS
   ============================================================ */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --blue:#2C3E50;--blue-light:#3d5166;--blue-dark:#1a252f;
  --orange:#E67E22;--orange-light:#f39c12;
  --green:#27AE60;--green-light:#2ecc71;
  --red:#e74c3c;--purple:#9b59b6;--yellow:#f1c40f;
  --bg:#f0f4f8;--sidebar-w:250px;
  --card-radius:16px;--shadow:0 4px 20px rgba(44,62,80,.09);
}
body{font-family:'Nunito',sans-serif;background:var(--bg);color:var(--blue);min-height:100vh;display:flex}

/* ── SIDEBAR ── */
.sidebar{width:var(--sidebar-w);background:linear-gradient(180deg,#1a6b3a 0%,var(--blue) 100%);min-height:100vh;position:fixed;top:0;left:0;display:flex;flex-direction:column;z-index:100;transition:transform .3s}
.sidebar-brand{display:flex;align-items:center;gap:10px;padding:20px 16px;border-bottom:1px solid rgba(255,255,255,.08);text-decoration:none}
.sidebar-brand img{width:40px;border-radius:10px}
.sidebar-brand-name{font-family:'Baloo 2',sans-serif;font-size:1.15rem;font-weight:900;color:#fff}
.sidebar-brand-name span{color:var(--orange)}
.sidebar-brand-role{font-size:.68rem;font-weight:700;color:rgba(255,255,255,.4);text-transform:uppercase;letter-spacing:.5px}
.sidebar-nav{flex:1;padding:14px 10px;display:flex;flex-direction:column;gap:3px;overflow-y:auto}
.nav-section-label{font-size:.65rem;font-weight:800;color:rgba(255,255,255,.3);text-transform:uppercase;letter-spacing:1px;padding:12px 10px 5px}
.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:12px;text-decoration:none;color:rgba(255,255,255,.65);font-weight:700;font-size:.86rem;transition:all .2s;position:relative}
.nav-item:hover{background:rgba(255,255,255,.08);color:#fff}
.nav-item.active{background:linear-gradient(135deg,var(--orange),var(--orange-light));color:#fff;box-shadow:0 4px 14px rgba(230,126,34,.4)}
.nav-icon{font-size:1rem;flex-shrink:0;width:20px;text-align:center}
.nav-badge{margin-left:auto;background:var(--red);color:#fff;font-size:.62rem;font-weight:900;padding:2px 6px;border-radius:10px}
.sidebar-footer{padding:14px 10px;border-top:1px solid rgba(255,255,255,.08)}
.student-profile{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:12px;background:rgba(255,255,255,.06);margin-bottom:8px}
.student-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--orange),var(--orange-light));display:flex;align-items:center;justify-content:center;font-size:1rem;flex-shrink:0;font-weight:900;color:#fff}
.student-info{overflow:hidden}
.student-name{font-weight:800;font-size:.82rem;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.student-xp{font-size:.68rem;color:rgba(255,255,255,.4);font-weight:600}
.btn-logout{width:100%;padding:9px;border:1.5px solid rgba(255,255,255,.12);background:transparent;color:rgba(255,255,255,.5);border-radius:10px;font-family:'Nunito',sans-serif;font-weight:700;font-size:.8rem;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:6px}
.btn-logout:hover{border-color:var(--red);color:var(--red)}

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

/* ── TOPBAR ── */
.topbar{background:#fff;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e8edf2;position:sticky;top:0;z-index:50;box-shadow:0 2px 12px rgba(0,0,0,.05)}
.topbar-left{display:flex;align-items:center;gap:14px}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px;background:none;border:none}
.hamburger span{display:block;width:22px;height:2px;background:var(--blue);border-radius:4px;transition:.3s}
.page-title{font-family:'Baloo 2',sans-serif;font-size:1.2rem;font-weight:900;color:var(--blue)}
.page-title span{color:var(--orange)}
.topbar-right{display:flex;align-items:center;gap:10px}
.xp-chip{display:flex;align-items:center;gap:6px;background:rgba(230,126,34,.1);border:1.5px solid rgba(230,126,34,.2);padding:6px 14px;border-radius:20px;font-weight:800;font-size:.82rem;color:var(--orange)}
.streak-chip{display:flex;align-items:center;gap:5px;background:rgba(231,76,60,.08);border:1.5px solid rgba(231,76,60,.2);padding:6px 12px;border-radius:20px;font-weight:800;font-size:.82rem;color:var(--red)}

/* ── CONTENT ── */
.content{padding:24px;flex:1}

/* ── STAT CARDS ── */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin-bottom:24px}
.stat-card{background:#fff;border-radius:var(--card-radius);padding:20px;box-shadow:var(--shadow);display:flex;align-items:center;gap:14px;transition:all .25s;border:2px solid transparent}
.stat-card:hover{transform:translateY(-3px);box-shadow:0 8px 28px rgba(44,62,80,.13);border-color:rgba(230,126,34,.15)}
.stat-icon-wrap{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.4rem;flex-shrink:0}
.stat-label{font-size:.72rem;font-weight:700;color:#889;text-transform:uppercase;letter-spacing:.5px;margin-bottom:3px}
.stat-value{font-family:'Baloo 2',sans-serif;font-size:1.7rem;font-weight:900;color:var(--blue);line-height:1}
.stat-sub{font-size:.72rem;color:#a0b0c0;margin-top:3px;font-weight:600}

/* ── CARD ── */
.card{background:#fff;border-radius:var(--card-radius);box-shadow:var(--shadow);padding:22px;margin-bottom:20px}
.card-title{font-family:'Baloo 2',sans-serif;font-size:1rem;font-weight:800;color:var(--blue);margin-bottom:16px;display:flex;align-items:center;justify-content:space-between;gap:8px}
.card-title a{font-size:.78rem;color:var(--orange);font-weight:700;text-decoration:none}
.card-title a:hover{text-decoration:underline}

/* ── TASK CARDS ── */
.task-list{display:flex;flex-direction:column;gap:12px}
.task-item{display:flex;align-items:center;gap:14px;padding:14px 16px;background:var(--bg);border-radius:14px;border:2px solid transparent;transition:all .2s;cursor:pointer}
.task-item:hover{border-color:var(--orange);background:#fff;box-shadow:0 4px 16px rgba(230,126,34,.1)}
.task-item.completed{opacity:.65;border-color:var(--green);background:rgba(39,174,96,.04)}
.task-icon{width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.3rem;flex-shrink:0}
.task-body{flex:1;min-width:0}
.task-title{font-weight:800;font-size:.9rem;color:var(--blue);margin-bottom:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.task-meta{font-size:.74rem;color:#889;font-weight:600;display:flex;gap:10px;flex-wrap:wrap}
.task-right{display:flex;flex-direction:column;align-items:flex-end;gap:6px;flex-shrink:0}

/* ── GAME CARDS ── */
.games-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:14px}
.game-card{background:var(--bg);border-radius:14px;padding:18px 14px;text-align:center;cursor:pointer;transition:all .25s;border:2px solid transparent;text-decoration:none;display:block}
.game-card:hover{transform:translateY(-4px);border-color:var(--orange);box-shadow:0 8px 24px rgba(230,126,34,.18);background:#fff}
.game-emoji{font-size:2.2rem;margin-bottom:8px;display:block}
.game-title{font-weight:800;font-size:.84rem;color:var(--blue);margin-bottom:3px}
.game-subject{font-size:.7rem;color:#889;font-weight:600;text-transform:uppercase;letter-spacing:.4px}
.game-xp{font-size:.72rem;font-weight:800;color:var(--orange);margin-top:6px}

/* ── PROGRESS BAR ── */
.prog-row{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.prog-label{font-size:.78rem;font-weight:700;color:var(--blue);min-width:72px}
.prog-track{flex:1;height:10px;background:#eef1f5;border-radius:8px;overflow:hidden}
.prog-fill{height:100%;border-radius:8px;transition:width 1s ease}
.prog-pct{font-size:.74rem;font-weight:800;color:#889;min-width:32px;text-align:right}

/* ── BADGE GRID ── */
.badges-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(90px,1fr));gap:12px}
.badge-item{text-align:center;padding:14px 8px;background:var(--bg);border-radius:14px;border:2px solid transparent;transition:.2s}
.badge-item.earned{border-color:var(--yellow);background:rgba(241,196,15,.06)}
.badge-item.locked{opacity:.4;filter:grayscale(1)}
.badge-emoji{font-size:2rem;display:block;margin-bottom:6px}
.badge-name{font-size:.72rem;font-weight:800;color:var(--blue)}

/* ── LEADERBOARD ── */
.lb-item{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:14px;margin-bottom:8px;background:var(--bg);transition:.2s}
.lb-item:hover{background:#fff;box-shadow:var(--shadow)}
.lb-item.me{background:rgba(230,126,34,.08);border:2px solid rgba(230,126,34,.25)}
.lb-rank{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:.85rem;flex-shrink:0}
.lb-avatar{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:1rem;flex-shrink:0}
.lb-name{flex:1;font-weight:800;font-size:.88rem;color:var(--blue)}
.lb-xp{font-weight:900;font-size:.88rem;color:var(--orange)}
.lb-streak{font-size:.75rem;color:var(--red);font-weight:700}

/* ── WALLET ── */
.wallet-balance{background:linear-gradient(135deg,var(--blue),var(--blue-light));border-radius:20px;padding:28px 24px;color:#fff;margin-bottom:20px;position:relative;overflow:hidden}
.wallet-balance::before{content:'💰';position:absolute;right:-10px;bottom:-20px;font-size:8rem;opacity:.08}
.wallet-label{font-size:.78rem;font-weight:700;opacity:.6;text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px}
.wallet-amount{font-family:'Baloo 2',sans-serif;font-size:2.8rem;font-weight:900}
.wallet-sub{font-size:.78rem;opacity:.55;margin-top:4px}
.topup-btns{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.topup-btn{padding:8px 18px;background:rgba(255,255,255,.15);border:1.5px solid rgba(255,255,255,.25);color:#fff;border-radius:20px;font-family:'Nunito',sans-serif;font-weight:800;font-size:.85rem;cursor:pointer;transition:.2s}
.topup-btn:hover{background:rgba(255,255,255,.25)}
.txn-item{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid #f0f4f8}
.txn-item:last-child{border-bottom:none}
.txn-icon{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1rem;flex-shrink:0}
.txn-title{font-weight:700;font-size:.86rem;color:var(--blue)}
.txn-date{font-size:.73rem;color:#a0b0c0;font-weight:600}
.txn-amount{font-weight:900;font-size:.9rem;margin-left:auto}
.txn-amount.credit{color:var(--green)}
.txn-amount.debit{color:var(--red)}

/* ── PILLS ── */
.pill{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:20px;font-size:.7rem;font-weight:800;text-transform:uppercase}
.pill-pending{background:rgba(230,126,34,.12);color:var(--orange)}
.pill-completed{background:rgba(39,174,96,.12);color:var(--green)}
.pill-overdue{background:rgba(231,76,60,.1);color:var(--red)}
.pill-paid{background:rgba(155,89,182,.1);color:var(--purple)}
.pill-game{background:rgba(44,62,80,.08);color:var(--blue)}
.pill-free{background:rgba(39,174,96,.1);color:var(--green)}

/* ── BUTTONS ── */
.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:10px;font-family:'Nunito',sans-serif;font-weight:700;font-size:.82rem;border:none;cursor:pointer;transition:all .2s;text-decoration:none}
.btn-primary{background:linear-gradient(135deg,var(--orange),var(--orange-light));color:#fff;box-shadow:0 4px 14px rgba(230,126,34,.3)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(230,126,34,.4)}
.btn-green{background:linear-gradient(135deg,var(--green),var(--green-light));color:#fff;box-shadow:0 4px 14px rgba(39,174,96,.3)}
.btn-green:hover{transform:translateY(-1px)}
.btn-outline{background:transparent;border:2px solid #e8edf2;color:var(--blue)}
.btn-outline:hover{border-color:var(--orange);color:var(--orange)}
.btn-sm{padding:6px 12px;font-size:.76rem}

/* ── TABLE ── */
.tbl-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse}
thead th{background:#f8fafd;padding:11px 16px;text-align:left;font-size:.72rem;font-weight:800;color:#889;text-transform:uppercase;letter-spacing:.5px;border-bottom:1px solid #eef1f5;white-space:nowrap}
tbody tr{border-bottom:1px solid #f0f4f8;transition:.15s}
tbody tr:last-child{border-bottom:none}
tbody tr:hover{background:#fafbfd}
tbody td{padding:12px 16px;font-size:.86rem;color:#445;vertical-align:middle}

/* ── MODAL ── */
.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:999;align-items:center;justify-content:center;padding:20px;backdrop-filter:blur(4px)}
.modal-overlay.open{display:flex}
.modal{background:#fff;border-radius:20px;padding:28px;width:100%;max-width:460px;box-shadow:0 20px 60px rgba(0,0,0,.2);animation:modalIn .25s ease}
@keyframes modalIn{from{opacity:0;transform:scale(.94) translateY(16px)}to{opacity:1;transform:scale(1) translateY(0)}}
.modal-title{font-family:'Baloo 2',sans-serif;font-size:1.15rem;font-weight:900;color:var(--blue);margin-bottom:6px}
.modal-sub{font-size:.86rem;color:#778;margin-bottom:20px}
.modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:18px}
input,select{width:100%;padding:11px 14px;border:2px solid #e8edf2;border-radius:10px;font-family:'Nunito',sans-serif;font-size:.9rem;color:var(--blue);background:#f8fafd;outline:none;transition:.2s;margin-bottom:14px}
input:focus,select:focus{border-color:var(--orange);background:#fff}

/* ── TOAST ── */
.toast{position:fixed;bottom:24px;right:24px;background:var(--blue);color:#fff;padding:12px 20px;border-radius:12px;font-weight:700;font-size:.88rem;box-shadow:0 8px 28px rgba(0,0,0,.2);z-index:9999;display:flex;align-items:center;gap:8px;transform:translateY(80px);opacity:0;transition:all .3s}
.toast.show{transform:translateY(0);opacity:1}
.toast.success{background:var(--green)}
.toast.error{background:var(--red)}

/* ── LOADER ── */
.page-loader{position:fixed;inset:0;background:rgba(240,244,248,.85);z-index:9998;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:12px;backdrop-filter:blur(4px)}
.spinner{width:36px;height:36px;border:3px solid rgba(230,126,34,.2);border-top-color:var(--orange);border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ── GRID ── */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}

/* ── EMPTY ── */
.empty-state{text-align:center;padding:48px 24px;color:#aab}
.empty-icon{font-size:2.8rem;margin-bottom:10px}
.empty-text{font-size:.9rem;font-weight:600}

/* ── RESPONSIVE ── */
@media(max-width:860px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0);box-shadow:4px 0 24px rgba(0,0,0,.2)}
  .main{margin-left:0}
  .hamburger{display:flex}
  .grid-2,.grid-3{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .xp-chip,.streak-chip{display:none}
}
@media(max-width:480px){
  .content{padding:14px}
  .topbar{padding:12px 14px}
  .stats-grid{grid-template-columns:1fr 1fr}
}