:root{
  --bg:#0b0910; --bg2:#0f0c16; --panel:#15111f; --panel2:#1b1626;
  --text:#ece9f5; --muted:#9a92b4; --faint:#6f6790;
  --accent:#a855f7; --accent2:#7c3aed; --accent-soft:rgba(168,85,247,.14);
  --border:rgba(168,85,247,.18); --border2:rgba(255,255,255,.06);
  --good:#5ee6a8; --warn:#f0c05a; --bad:#f0736a;
  --serif:'Cormorant Garamond','Georgia','Times New Roman',serif;
  --sans:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:radial-gradient(1200px 800px at 80% -10%,#1a1030 0,var(--bg) 55%) fixed,var(--bg);
  color:var(--text);font-family:var(--sans);font-size:15px;line-height:1.55;min-height:100vh;-webkit-font-smoothing:antialiased}
a{color:var(--accent)}
h1,h2,h3{font-family:var(--serif);font-weight:600;letter-spacing:.5px;margin:0}
h1{font-size:34px}h2{font-size:24px}h3{font-size:19px}
.muted{color:var(--muted)}.faint{color:var(--faint)}
button{font-family:var(--sans);cursor:pointer;border:none}
input,textarea,select{font-family:var(--sans);font-size:14px;color:var(--text);background:var(--panel2);
  border:1px solid var(--border);border-radius:10px;padding:10px 12px;width:100%;outline:none;transition:border .15s}
input:focus,textarea:focus,select:focus{border-color:var(--accent)}
textarea{resize:vertical;min-height:80px}
label{display:block;font-size:12px;color:var(--muted);margin:0 0 5px 2px;letter-spacing:.3px}
.btn{background:linear-gradient(135deg,var(--accent2),var(--accent));color:#fff;padding:11px 20px;border-radius:12px;
  font-weight:600;font-size:14px;letter-spacing:.3px;transition:transform .1s,box-shadow .2s;box-shadow:0 6px 20px rgba(124,58,237,.25)}
.btn:hover{transform:translateY(-1px);box-shadow:0 10px 28px rgba(124,58,237,.4)}
.btn:active{transform:translateY(0)}
.btn.ghost{background:transparent;border:1px solid var(--border);color:var(--text);box-shadow:none}
.btn.ghost:hover{background:var(--accent-soft)}
.btn.sm{padding:7px 14px;font-size:13px;border-radius:9px}
.card{background:linear-gradient(180deg,var(--panel),var(--bg2));border:1px solid var(--border2);border-radius:18px;padding:22px}
.pill{display:inline-block;font-size:11px;letter-spacing:.6px;text-transform:uppercase;color:var(--accent);
  background:var(--accent-soft);border:1px solid var(--border);border-radius:100px;padding:4px 11px}
.hide{display:none!important}
.moon{font-size:22px;filter:drop-shadow(0 0 8px rgba(168,85,247,.6))}

/* AUTH */
#auth{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}
#auth .card{width:100%;max-width:410px;text-align:center}
#auth .brand{font-family:var(--serif);font-size:30px;letter-spacing:2px}
.auth-tabs{display:flex;gap:8px;margin:20px 0 16px}
.auth-tabs button{flex:1;background:transparent;color:var(--muted);padding:9px;border-radius:10px;border:1px solid transparent;font-size:14px}
.auth-tabs button.on{color:var(--text);border-color:var(--border);background:var(--accent-soft)}
#auth .field{text-align:left;margin-bottom:12px}
.err{color:var(--bad);font-size:13px;min-height:18px;margin-top:4px}

/* SHELL */
#app{display:grid;grid-template-columns:238px 1fr;min-height:100vh}
#side{background:linear-gradient(180deg,var(--panel),var(--bg));border-right:1px solid var(--border2);
  padding:24px 16px;position:sticky;top:0;height:100vh;overflow:auto}
.logo{font-family:var(--serif);font-size:22px;letter-spacing:2px;padding:0 8px 4px}
.logo small{display:block;font-family:var(--sans);font-size:10px;letter-spacing:3px;color:var(--faint);text-transform:uppercase;margin-top:2px}
nav{margin-top:22px;display:flex;flex-direction:column;gap:3px}
nav a{display:flex;align-items:center;gap:11px;padding:11px 13px;border-radius:11px;color:var(--muted);
  text-decoration:none;font-size:14px;transition:.15s;cursor:pointer}
nav a:hover{color:var(--text);background:var(--accent-soft)}
nav a.on{color:var(--text);background:var(--accent-soft);border:1px solid var(--border)}
nav a .ic{font-size:16px;width:20px;text-align:center}
.side-foot{margin-top:22px;padding-top:16px;border-top:1px solid var(--border2);font-size:13px}
#main{padding:34px 40px 80px;max-width:1080px}
.page-head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:24px;gap:16px;flex-wrap:wrap}
.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}
@media(max-width:900px){#app{grid-template-columns:1fr}#side{position:fixed;z-index:40;transform:translateX(-100%);width:238px;transition:.25s}
  #side.open{transform:none}#main{padding:20px 18px 70px}.g2,.g3{grid-template-columns:1fr}
  #burger{display:flex!important}}
#burger{display:none;position:fixed;top:14px;left:14px;z-index:50;background:var(--panel);border:1px solid var(--border);
  color:var(--text);width:42px;height:42px;border-radius:12px;align-items:center;justify-content:center;font-size:20px}

/* misc components */
.stat{display:flex;flex-direction:column;gap:2px}
.stat .n{font-family:var(--serif);font-size:32px}
.stat .l{font-size:12px;color:var(--muted);letter-spacing:.4px}
.bar{height:9px;background:var(--panel2);border-radius:100px;overflow:hidden;border:1px solid var(--border2)}
.bar>i{display:block;height:100%;background:linear-gradient(90deg,var(--accent2),var(--accent));border-radius:100px;transition:width .5s}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.between{justify-content:space-between}
table{width:100%;border-collapse:collapse;font-size:13px}
th,td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--border2);vertical-align:top}
th{color:var(--muted);font-weight:500;font-size:11px;letter-spacing:.5px;text-transform:uppercase}
.tag{font-size:11px;padding:3px 9px;border-radius:100px;background:var(--accent-soft);border:1px solid var(--border);color:var(--accent);white-space:nowrap}
.list-item{border:1px solid var(--border2);border-radius:13px;padding:14px;margin-bottom:10px;background:var(--panel2)}
.q-opt{border:1px solid var(--border);border-radius:12px;padding:13px 15px;margin:8px 0;cursor:pointer;transition:.15s;background:var(--panel2)}
.q-opt:hover{border-color:var(--accent)}
.q-opt.sel{background:var(--accent-soft);border-color:var(--accent)}
.q-opt.correct{border-color:var(--good);background:rgba(94,230,168,.1)}
.q-opt.wrong{border-color:var(--bad);background:rgba(240,115,106,.1)}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(80px);background:var(--panel);
  border:1px solid var(--accent);color:var(--text);padding:13px 22px;border-radius:13px;box-shadow:0 12px 40px rgba(0,0,0,.5);
  transition:transform .3s;z-index:60;font-size:14px}
.toast.show{transform:translateX(-50%) translateY(0)}
/* Tarot-style card of the day */
.tarot{perspective:1200px}
.tarot-inner{position:relative;background:
   radial-gradient(120% 90% at 50% -10%,rgba(168,85,247,.28),transparent 60%),
   linear-gradient(160deg,#251540 0,#170e24 55%,#120b1c 100%);
  border:1.5px solid rgba(212,175,120,.45);border-radius:20px;padding:30px 26px;text-align:center;
  box-shadow:0 20px 60px rgba(0,0,0,.5),inset 0 0 60px rgba(168,85,247,.08);overflow:hidden;
  animation:draw .55s cubic-bezier(.2,.8,.2,1)}
@keyframes draw{from{opacity:0;transform:rotateY(28deg) translateY(10px)}to{opacity:1;transform:none}}
.tarot-inner::before,.tarot-inner::after{content:'✦';position:absolute;color:rgba(212,175,120,.6);font-size:13px}
.tarot-inner::before{top:12px;left:14px}.tarot-inner::after{bottom:12px;right:14px}
.tarot-frame{position:absolute;inset:8px;border:1px solid rgba(212,175,120,.2);border-radius:14px;pointer-events:none}
.tarot-sym{font-size:46px;filter:drop-shadow(0 0 14px rgba(168,85,247,.6));margin-bottom:6px}
.tarot-name{font-family:var(--serif);font-size:26px;letter-spacing:3px;text-transform:uppercase;color:#e7d3a8}
.tarot-eyebrow{letter-spacing:3px;font-size:10px;text-transform:uppercase;color:var(--accent);margin-bottom:4px}
.tarot-div{width:60px;height:1px;background:linear-gradient(90deg,transparent,rgba(212,175,120,.7),transparent);margin:12px auto}
.tarot-msg{font-family:var(--serif);font-size:19px;line-height:1.5;color:var(--text);max-width:520px;margin:0 auto}
.icircle{width:34px;height:34px;border-radius:50%;background:var(--accent-soft);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}
.hr{height:1px;background:var(--border2);margin:18px 0}
.mini{font-size:12px;color:var(--faint)}
.compet{background:linear-gradient(135deg,#2a1546,#160e24);border:1px solid var(--border);border-radius:18px;padding:24px}
.compet .total{font-family:var(--serif);font-size:36px;color:#e7d3a8;line-height:1.1}
.brow{display:flex;align-items:center;gap:8px;padding:8px 10px;border-radius:10px}
.brow+.brow{margin-top:3px}
.brow.me{background:var(--accent-soft);border:1px solid var(--border)}
.brow .rank{width:26px;color:var(--muted);text-align:center}
.brow .nm{flex:1}
.brow .val{font-weight:600;color:#e7d3a8;white-space:nowrap}
.lb{position:fixed;inset:0;background:rgba(0,0,0,.86);display:flex;align-items:center;justify-content:center;z-index:80;padding:24px;cursor:zoom-out}
.lb img{max-width:100%;max-height:90vh;border-radius:12px;border:1px solid var(--border)}
.thumb{height:54px;border-radius:8px;border:1px solid var(--border2);cursor:zoom-in;vertical-align:middle;object-fit:cover}
.cta-attach{font-size:12px;color:var(--accent);background:var(--accent-soft);border:1px dashed var(--border);border-radius:10px;padding:9px 12px;margin-top:8px}
.money-bg{background-image:linear-gradient(rgba(11,9,16,.90),rgba(11,9,16,.95)),url("data:image/svg+xml;base64,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");
  background-repeat:no-repeat,repeat;background-size:cover,150px 85px;background-attachment:fixed,scroll;border-radius:20px;padding:14px;margin:-2px}
.money-bg .card{background:linear-gradient(180deg,rgba(21,17,31,.92),rgba(15,12,22,.92))}
.note-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.note-tabs button{background:transparent;color:var(--muted);padding:8px 14px;border-radius:100px;border:1px solid var(--border2);font-size:13px}
.note-tabs button.on{color:var(--text);background:var(--accent-soft);border-color:var(--border)}

/* ===== Кабинет преподавателя (перенос из admin.html, тот же визуальный язык) ===== */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0}
.tabs a{background:transparent;color:var(--muted);padding:9px 16px;border-radius:10px;border:1px solid transparent;font-size:14px;text-decoration:none}
.tabs a.on{color:var(--text);background:var(--accent-soft);border-color:var(--border)}
.item{border:1px solid var(--border2);border-radius:12px;padding:14px;margin-bottom:10px;background:var(--panel2)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.wrap{max-width:960px;margin:0 auto;padding:30px 24px 80px}
.warn{background:rgba(240,192,90,.1);border:1px solid rgba(240,192,90,.3);border-radius:12px;padding:12px 14px;font-size:13px;color:#f0c05a}

/* Плашка-счётчик на пунктах навигации ученика */
.navdot{display:inline-flex;align-items:center;justify-content:center;min-width:18px;height:18px;
  margin-left:auto;padding:0 5px;border-radius:100px;font-size:11px;font-weight:700;
  background:linear-gradient(135deg,var(--accent2),var(--accent));color:#fff;box-shadow:0 2px 8px rgba(124,58,237,.5)}
nav a{position:relative}

/* 3D денежный фон для «Мои продажи» */
.money3d{position:relative;overflow:hidden}
.money3d .money3d-layer{position:absolute;inset:0;pointer-events:none;z-index:0;
  perspective:1000px;transform-style:preserve-3d}
.money3d .bill{position:absolute;font-size:46px;opacity:.42;will-change:transform;
  filter:drop-shadow(0 10px 16px rgba(0,0,0,.5)) saturate(1.3);
  animation:moneyfloat 9s ease-in-out infinite;transform-style:preserve-3d}
.money3d > .page-head,.money3d > .grid,.money3d > #sales-data{position:relative;z-index:1}
@keyframes moneyfloat{
  0%   {transform:translateY(0)      translateZ(0)     rotateY(0deg)   rotateX(0deg)}
  25%  {transform:translateY(-14px)  translateZ(60px)  rotateY(90deg)  rotateX(12deg)}
  50%  {transform:translateY(-26px)  translateZ(0)     rotateY(180deg) rotateX(24deg)}
  75%  {transform:translateY(-14px)  translateZ(60px)  rotateY(270deg) rotateX(12deg)}
  100% {transform:translateY(0)      translateZ(0)     rotateY(360deg) rotateX(0deg)}}
@media (prefers-reduced-motion: reduce){.money3d .bill{animation:none;opacity:.3}}