/* ===== Синяя тема в стиле «нарисовано маркером» ===== */
:root{
  --bg:#e8f1ff; --bg-2:#d9e8ff; --paper:#fff; --ink:#0d2a6e; --text:#1d3366; --muted:#5d73a3;
  --blue:#1f4fd6; --blue-d:#163aa8; --blue-l:#dfe9ff; --line:#bcd2ff; --line-d:#8fb2f7; --shadow:#c4d7ff;
  --green:#14a05a; --green-l:#dcf6e8; --red:#e5384f; --red-l:#ffe3e7; --amber:#d98b06;
  --c-math:#1f4fd6; --c-inf:#0a8fc9; --c-prog:#5a46e0;
  --r:20px 24px 19px 25px / 24px 19px 25px 20px;
  --r-sm:12px 15px 11px 14px / 14px 11px 15px 12px;
  --hand:"Caveat","Segoe Print","Comic Sans MS",cursive;
  font-family:"Nunito",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  color:var(--text); background:var(--bg); color-scheme:light;
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg) radial-gradient(circle at 1px 1px,#c6d9ff 1.1px,transparent 1.3px) 0 0/22px 22px;min-height:100vh}
body.no-scroll{overflow:hidden}
button,input,textarea,select{font:inherit;color:inherit}
a{color:inherit}
.hand{font-family:var(--hand);font-weight:700;letter-spacing:.01em}
.hidden{display:none!important}
.muted{color:var(--muted)}
.row{display:flex;align-items:center}.row.between{justify-content:space-between;gap:12px}.gap{gap:14px}
.eyebrow{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.1em;color:var(--muted)}

/* ===== Каркас ===== */
.topbar{position:sticky;top:0;z-index:20;height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 max(16px,calc((100vw - 1240px)/2));background:#ffffffd9;backdrop-filter:blur(8px);border-bottom:2px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-size:26px}
.brand-mark{display:grid;place-items:center;width:38px;height:38px;background:var(--blue);color:#fff;border-radius:var(--r-sm);font-size:20px;transform:rotate(-4deg);box-shadow:0 3px 0 var(--blue-d)}
.main{max-width:1240px;margin:0 auto;padding:26px 20px 60px;min-height:calc(100vh - 120px)}
footer{text-align:center;padding:22px;color:var(--muted);font-family:var(--hand);font-size:20px}
.loading{padding:60px;text-align:center;color:var(--muted);font-family:var(--hand);font-size:26px}

/* ===== Карточки ===== */
.card{background:var(--paper);border:2px solid var(--line);border-radius:var(--r);box-shadow:0 5px 0 var(--shadow)}
.card.pad{padding:20px 22px;margin-bottom:18px}
.card h3{font-size:30px;color:var(--ink);margin:0 0 10px;line-height:1}
h4{margin:18px 0 8px;font-size:14px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}

/* ===== Кнопки ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:44px;padding:9px 18px;border:2px solid var(--blue);background:#fff;color:var(--blue);border-radius:var(--r-sm);font-weight:800;font-size:15px;cursor:pointer;text-decoration:none;transition:transform .12s,box-shadow .12s,background .12s;box-shadow:0 3px 0 var(--line-d)}
.btn svg{width:18px;height:18px}
.btn:hover{transform:translateY(-1px);box-shadow:0 4px 0 var(--line-d)}
.btn:active{transform:translateY(2px);box-shadow:0 1px 0 var(--line-d)}
.btn.primary{background:var(--blue);color:#fff;box-shadow:0 3px 0 var(--blue-d)}
.btn.primary:hover{background:#2a5be6;box-shadow:0 4px 0 var(--blue-d)}
.btn.ghost{border-color:var(--line);color:var(--ink);box-shadow:none;background:#fff}
.btn.ghost:hover{border-color:var(--line-d);background:var(--blue-l)}
.btn.danger{border-color:var(--red);color:var(--red);box-shadow:0 3px 0 #f6b3bd}
.btn.danger.ghost{border-color:#f5c2c9;box-shadow:none}
.btn.sm{min-height:36px;padding:6px 12px;font-size:14px}
.btn.wide{width:100%}
.btn:disabled{opacity:.55;cursor:wait;transform:none}
.btn-row{display:flex;gap:8px;flex-wrap:wrap}
.icon-btn{display:grid;place-items:center;width:40px;height:40px;border:2px solid var(--line);border-radius:50%;background:#fff;color:var(--blue);cursor:pointer;flex-shrink:0}
.icon-btn:hover{background:var(--blue-l);border-color:var(--line-d)}
.icon-btn svg{width:20px;height:20px}
.linkish{background:none;border:0;padding:4px 0;color:var(--muted);font-size:13px;text-decoration:underline dotted;cursor:pointer;align-self:flex-start}
.linkish:hover{color:var(--red)}

/* ===== Hero с «мазком» как в референсе ===== */
.hero,.lesson-hero,.hero-like{position:relative;overflow:hidden}
.hero{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;padding:26px 28px;margin-bottom:18px;background:linear-gradient(135deg,#f5f9ff,#e3eeff);border:2px solid var(--line);border-radius:var(--r);box-shadow:0 5px 0 var(--shadow)}
.hero-text{position:relative;z-index:1}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap;position:relative;z-index:1}
.blob{display:inline-block;margin:0 0 10px;padding:4px 26px 8px 22px;font-size:clamp(38px,5.4vw,58px);line-height:1.02;color:#fff;background:var(--blue);border-radius:38% 52% 44% 56% / 58% 42% 60% 44%;transform:rotate(-1.6deg);box-shadow:6px 6px 0 #9fbcff;text-shadow:0 0 14px #ffffff55}
.lead{margin:6px 0 0;max-width:560px;font-size:17px;line-height:1.5;color:var(--text)}
.deco{position:absolute;color:var(--blue);opacity:.75;pointer-events:none}
.deco svg{width:100%;height:100%}
.deco.d1{width:34px;height:34px;right:24%;top:16px;transform:rotate(12deg)}
.deco.d2{width:24px;height:24px;right:5%;top:12px;transform:rotate(-14deg);opacity:.5}
.deco.d3,.deco.d4{height:4px;border-radius:4px;background:var(--blue);opacity:.6}
.deco.d3{width:30px;right:calc(24% + 46px);top:28px;transform:rotate(-28deg)}
.deco.d4{width:22px;right:calc(24% + 40px);top:46px;transform:rotate(8deg)}
.tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:6px}

/* ===== Теги и предметы ===== */
.s-math{--c:var(--c-math)}.s-inf{--c:var(--c-inf)}.s-prog{--c:var(--c-prog)}
.tag{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12.5px;font-weight:800;background:color-mix(in srgb,var(--c,var(--blue)) 13%,#fff);color:var(--c,var(--blue));border:1.5px solid color-mix(in srgb,var(--c,var(--blue)) 35%,#fff)}
.tag.t-past{--c:#5d73a3}.tag.t-next{--c:var(--green)}

/* ===== Статистика ===== */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin-bottom:20px}
.stat{display:flex;align-items:baseline;gap:10px;padding:14px 18px;background:#fff;border:2px solid var(--line);border-radius:var(--r-sm);box-shadow:0 4px 0 var(--shadow)}
.stat-n{font-family:var(--hand);font-size:44px;font-weight:700;line-height:.9;color:var(--blue)}
.stat-n.ok{color:var(--green)}.stat-n.bad{color:var(--red)}
.stat-l{font-weight:700;color:var(--muted)}
.stat.attn{border-color:#f2c46a;box-shadow:0 4px 0 #f7dfa6}.stat.attn .stat-n{color:var(--amber)}
.stat.attn-red{border-color:#f5b3bc;box-shadow:0 4px 0 #fbd2d8}

/* ===== HW иконки ===== */
.hw{display:inline-grid;place-items:center;width:18px;height:18px;border-radius:50%;flex-shrink:0;color:#fff}
.hw svg{width:12px;height:12px}
.hw-done{background:var(--green);box-shadow:0 0 0 2px #fff,0 0 0 3.5px #9fe3bf}
.hw-todo{background:var(--red);box-shadow:0 0 0 2px #fff,0 0 0 3.5px #ffb3bd}
.pill{display:inline-flex;align-items:center;gap:8px;padding:5px 12px 5px 6px;border-radius:999px;font-weight:800;font-size:14px}
.pill-done{background:var(--green-l);color:#0d7a43}.pill-todo{background:var(--red-l);color:#b8203a}

/* ===== Календарь ===== */
#cal,#tab-body{margin-bottom:24px}
.cal-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:18px;align-items:start}
.is-loading .cal-grid{opacity:.5}
.cal{padding:16px 16px 12px}
.cal-head{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.cal-title{flex:1;margin:0;text-align:center;font-size:42px;color:var(--ink);line-height:1}
.cal-title span{color:var(--blue)}
.cal-wd{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:6px;margin-bottom:6px}
.cal-wd span{text-align:center;font-weight:800;font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.cal-wd span.we{color:var(--blue)}
.cal-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:6px;transition:opacity .15s}
.day{position:relative;min-height:118px;padding:6px;background:#fbfdff;border:1.5px solid #dbe7ff;border-radius:12px 14px 11px 15px / 14px 11px 15px 12px;cursor:pointer;display:flex;flex-direction:column;gap:4px;min-width:0;transition:border-color .12s,background .12s}
.day:hover{border-color:var(--line-d);background:#f3f8ff}
.day.weekend{background:#f6f9ff}
.day.other{opacity:.42}
.day.selected{border:2px solid var(--blue);background:#eef4ff;box-shadow:0 3px 0 var(--line)}
.dnum{font-weight:800;font-size:14px;color:var(--ink);width:28px;height:28px;display:grid;place-items:center;border-radius:50%}
.day.today .dnum{background:var(--blue);color:#fff;box-shadow:0 2px 0 var(--blue-d)}
.chips{display:flex;flex-direction:column;gap:3px;min-width:0}
.chip{display:flex;flex-direction:column;gap:1px;min-width:0;padding:3px 5px 4px 6px;font-size:12px;line-height:1.25;text-decoration:none;color:var(--ink);background:color-mix(in srgb,var(--c) 11%,#fff);border-left:3px solid var(--c);border-radius:4px 8px 8px 4px;transition:background .12s}
.chip:hover{background:color-mix(in srgb,var(--c) 22%,#fff)}
.chip-l1{display:flex;align-items:center;gap:5px;min-width:0}
.chip-l1 .hw{margin-left:auto}
.chip-time{font-weight:800;color:var(--c);flex-shrink:0}
.chip-who{font-weight:800}
.chip-txt{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:600}
.chip .hw{width:15px;height:15px}.chip .hw svg{width:10px;height:10px}
.more{font-size:11.5px;font-weight:800;color:var(--blue);padding-left:6px}
.dots{display:none;gap:3px;justify-content:center;flex-wrap:wrap}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--c,var(--blue))}
.dot.dot-done{background:var(--green)}.dot.dot-todo{background:var(--red)}
.legend{display:flex;flex-wrap:wrap;gap:8px 16px;margin-top:12px;padding-top:10px;border-top:2px dashed var(--line);font-size:13px;font-weight:700;color:var(--muted)}
.legend span{display:inline-flex;align-items:center;gap:6px}
.legend .hw{width:16px;height:16px}

.agenda{padding:18px;position:sticky;top:84px}
.agenda-head h3{margin:2px 0 12px;font-size:32px}
.agenda-list{display:flex;flex-direction:column;gap:8px;margin-bottom:14px}
.agenda-empty{display:flex;flex-direction:column;align-items:center;gap:6px;padding:26px 10px;color:var(--muted);font-family:var(--hand);font-size:24px}
.agenda-empty svg{width:34px;height:34px;color:var(--line-d)}
.agenda .btn{width:100%}

/* ===== Строка занятия ===== */
.stack{display:flex;flex-direction:column;gap:10px}
.lrow{display:flex;align-items:center;gap:12px;padding:10px 12px;background:#fff;border:2px solid var(--line);border-left:5px solid var(--c);border-radius:var(--r-sm);text-decoration:none;transition:transform .12s,box-shadow .12s}
.lrow:hover{transform:translateX(2px);box-shadow:0 3px 0 var(--shadow)}
.lrow.past{background:#fafcff}
.lr-date{display:flex;flex-direction:column;align-items:center;min-width:46px;line-height:1}
.lr-date b{font-family:var(--hand);font-size:34px;color:var(--c)}
.lr-date small{font-weight:800;color:var(--muted);font-size:12px}
.lr-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:3px}
.lr-top{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.lr-time{display:inline-flex;align-items:center;gap:4px;font-weight:800;font-size:13px;color:var(--ink)}
.lr-time svg{width:14px;height:14px;color:var(--muted)}
.lr-topic{font-weight:700;color:var(--ink);overflow-wrap:anywhere}
.lr-who{font-size:13px;color:var(--muted);font-weight:700}
.lr-arrow{color:var(--line-d)}.lr-arrow svg{width:18px;height:18px}
.lrow .tag{font-size:11.5px;padding:1px 8px}

/* ===== Ученики ===== */
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:26px 0 12px}
.section-head h2{margin:0;font-size:38px;color:var(--ink);line-height:1}
.student-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:14px}
.student-card{display:flex;align-items:center;gap:14px;padding:16px;text-decoration:none;transition:transform .12s}
.student-card:hover{transform:translateY(-2px)}
.avatar{display:grid;place-items:center;width:50px;height:50px;flex-shrink:0;background:var(--blue-l);color:var(--blue);font-weight:800;font-size:18px;border:2px solid var(--line);border-radius:46% 54% 50% 50% / 55% 45% 55% 45%}
.avatar.lg{width:68px;height:68px;font-size:24px;background:#fff}
.sc-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:5px}
.sc-name{font-weight:800;font-size:17px;color:var(--ink)}
.sc-sub{display:flex;gap:5px;flex-wrap:wrap}
.sc-next{font-size:13px;color:var(--muted)}
.badge{min-width:26px;height:26px;display:grid;place-items:center;padding:0 7px;border-radius:999px;background:#fff1d1;color:#9a5d00;font-weight:800;font-size:13px}

/* ===== Табы ===== */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin:4px 0 16px}
.tab{padding:8px 18px;border:2px solid var(--line);border-radius:999px;background:#fff;color:var(--muted);font-weight:800;cursor:pointer}
.tab:hover{color:var(--blue);border-color:var(--line-d)}
.tab.active{background:var(--blue);border-color:var(--blue);color:#fff;box-shadow:0 3px 0 var(--blue-d)}

/* ===== Страница занятия ===== */
.crumbs{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.back{display:inline-flex;align-items:center;gap:6px;color:var(--blue);font-weight:800;text-decoration:none;margin-bottom:12px}
.crumbs .back{margin:0}
.back svg{width:18px;height:18px}
.lesson-hero{display:flex;gap:22px;align-items:center;padding:24px 26px;margin-bottom:18px;background:linear-gradient(135deg,var(--c),color-mix(in srgb,var(--c) 70%,#06184d));color:#fff;border-radius:var(--r);box-shadow:0 6px 0 color-mix(in srgb,var(--c) 45%,#0a1d55)}
.lesson-hero .deco{color:#fff;opacity:.55}.lesson-hero .deco.d3,.lesson-hero .deco.d4{background:#fff}
.lh-date{display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:112px;padding:10px 14px;background:#fff;color:var(--c);border-radius:var(--r-sm);transform:rotate(-2.5deg);box-shadow:4px 4px 0 #ffffff55;line-height:1}
.lh-date b{font-family:var(--hand);font-size:62px}
.lh-date span{font-weight:800;font-size:16px}
.lh-date small{margin-top:3px;color:var(--muted);font-weight:700}
.lh-main{position:relative;z-index:1;min-width:0}
.lh-main h1{margin:8px 0;font-size:clamp(36px,5vw,54px);line-height:1;overflow-wrap:anywhere}
.lh-main .tag{background:#ffffff26;color:#fff;border-color:#ffffff55}
.lh-meta{display:flex;flex-wrap:wrap;gap:6px 18px;font-weight:700;opacity:.95}
.lh-meta span{display:inline-flex;align-items:center;gap:6px}
.lh-meta svg{width:16px;height:16px}
.lesson-cols{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:18px;align-items:start}
.prose{white-space:pre-wrap;line-height:1.65;overflow-wrap:anywhere}
.prose.small{font-size:14px;margin-top:10px;color:var(--muted)}
.muted-note{padding:14px;border:2px dashed var(--line);border-radius:var(--r-sm);color:var(--muted);text-align:center;margin-bottom:12px}
.hw-card.hwc-done{border-color:#9fe3bf;box-shadow:0 5px 0 #c9f0db}
.hw-card.hwc-todo{border-color:#ffb3bd;box-shadow:0 5px 0 #ffd6dc}
.hw-head{display:flex;flex-wrap:wrap;gap:10px 14px;align-items:center;margin-bottom:12px}
.result{margin-top:14px;padding:12px 14px;border-radius:var(--r-sm);background:var(--green-l);color:#0b5f35}
.result.revision{background:#fff1d1;color:#8a5200}
.result p{margin:6px 0 0;white-space:pre-wrap}
.grade{margin-top:18px;padding-top:6px;border-top:2px dashed var(--line)}
.upload{margin-top:16px;padding-top:6px;border-top:2px dashed var(--line)}
.upload .btn{margin-top:12px}
.todo-box{border-color:#ffb3bd;box-shadow:0 5px 0 #ffd6dc}

/* ===== Файлы ===== */
.fgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:10px}
.fcard{display:flex;flex-direction:column;gap:4px;padding:7px;background:#f7faff;border:2px solid var(--line);border-radius:var(--r-sm);text-decoration:none;min-width:0;transition:transform .12s}
.fcard:hover{transform:translateY(-2px);border-color:var(--line-d)}
.fthumb{display:grid;place-items:center;height:92px;border-radius:8px;overflow:hidden;background:#fff}
.fthumb img{width:100%;height:100%;object-fit:cover}
.ftype{display:grid;place-items:center;width:58px;height:70px;border-radius:6px 16px 6px 6px;color:#fff;font-weight:800;font-size:15px}
.ftype-pdf{background:#e5384f}.ftype-doc{background:#1f4fd6}
.fname{font-size:13px;font-weight:700;color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.fmeta{font-size:12px;color:var(--muted)}

/* ===== Формы ===== */
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px;min-width:0}
.field>label{font-weight:800;font-size:14px;color:var(--ink)}
.field input:not([type=checkbox]):not([type=file]),.field select,.field textarea,.topic-box input,.topic-box select,.link-box input{width:100%;padding:11px 13px;border:2px solid var(--line);border-radius:12px;background:#fff;outline:none;transition:border-color .12s,box-shadow .12s}
.field select,.topic-box select{appearance:none;cursor:pointer;padding-right:38px;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 9l6 6 6-6' fill='none' stroke='%231f4fd6' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat right 12px center/18px}
.field input:focus,.field select:focus,.field textarea:focus,.topic-box input:focus,.topic-box select:focus{border-color:var(--blue);box-shadow:0 0 0 4px #d6e3ff}
.field textarea{resize:vertical;min-height:90px;line-height:1.5}
.topic-box{display:flex;flex-direction:column;gap:8px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
.form-grid.three{grid-template-columns:1.2fr 1fr 1fr}
.form-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:10px}
.checks{display:flex;gap:8px;flex-wrap:wrap}
.check{position:relative;cursor:pointer}
.check input{position:absolute;opacity:0}
.check span{display:inline-block;padding:8px 14px;border:2px solid var(--line);border-radius:999px;font-weight:800;color:var(--muted);background:#fff}
.check input:checked+span{background:var(--c);border-color:var(--c);color:#fff}
.check input:focus-visible+span{box-shadow:0 0 0 4px #d6e3ff}
.drop{display:flex;flex-direction:column;align-items:center;gap:2px;padding:16px;border:2px dashed var(--line-d);border-radius:var(--r-sm);background:#f5f9ff;cursor:pointer;text-align:center;position:relative;transition:background .12s}
.drop:hover,.drop.over{background:var(--blue-l);border-color:var(--blue)}
.drop input{position:absolute;inset:0;opacity:0;cursor:pointer}
.drop-ic{color:var(--blue)}.drop-ic svg{width:26px;height:26px}
.drop-t{font-weight:800;color:var(--ink)}
.drop-s{font-size:12.5px;color:var(--muted)}
.picked{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}
.chip-file{display:inline-flex;gap:6px;align-items:center;padding:4px 10px;background:var(--blue-l);border-radius:999px;font-size:13px;font-weight:700;color:var(--ink);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chip-file small{color:var(--muted)}
.existing{display:flex;flex-direction:column;gap:5px;margin-bottom:8px}
.ex-file{display:flex;align-items:center;gap:8px;padding:6px 10px;border:1.5px solid var(--line);border-radius:10px;font-size:14px;cursor:pointer}
.ex-file span{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ex-file em{font-style:normal;font-size:12px;color:var(--muted)}
.ex-file:has(input:checked){background:var(--red-l);border-color:#ffb3bd;text-decoration:line-through}
.ex-file:has(input:checked) em{color:var(--red)}
.hw-block{padding:14px 16px;margin:4px 0 8px;border:2px solid var(--line);border-radius:var(--r-sm);background:#f8fbff}
.hw-block.on{border-color:var(--line-d);background:#eef4ff}
.hw-fields{display:none;margin-top:14px}
.hw-block.on .hw-fields{display:block}
.switch{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);cursor:pointer}
.switch input{position:absolute;opacity:0}
.sw{width:44px;height:26px;border-radius:999px;background:#c9d7f3;position:relative;transition:background .15s;flex-shrink:0}
.sw::after{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:#fff;transition:transform .15s;box-shadow:0 1px 3px #0003}
.switch input:checked+.sw{background:var(--blue)}
.switch input:checked+.sw::after{transform:translateX(18px)}
.switch input:focus-visible+.sw{box-shadow:0 0 0 4px #d6e3ff}
.link-box{display:flex;gap:8px;flex-wrap:wrap}
.link-box input{flex:1;min-width:220px}
.danger-zone{border-color:#f5c2c9;box-shadow:0 5px 0 #fbdde1}

/* ===== Модальное окно ===== */
.modal-wrap{position:fixed;inset:0;z-index:50;display:flex;align-items:flex-start;justify-content:center;padding:4vh 16px;background:#0d2a6e59;backdrop-filter:blur(3px);overflow-y:auto;animation:fade .15s}
.modal{width:100%;max-width:520px;background:#fff;border:2px solid var(--line);border-radius:var(--r);box-shadow:0 8px 0 var(--shadow),0 30px 60px #0d2a6e33;animation:pop .18s}
.modal.wide{max-width:760px}
.modal-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 20px 6px}
.modal-head h2{margin:0;font-size:40px;color:var(--blue);line-height:1}
.modal-body{padding:10px 20px 20px}
@keyframes fade{from{opacity:0}}
@keyframes pop{from{transform:translateY(10px) scale(.98);opacity:0}}

/* ===== Вход, пусто, тост ===== */
.login-wrap{max-width:460px;margin:7vh auto}
.login{padding:34px 30px}
.login .blob{font-size:48px}
.login .lead{margin-bottom:20px}
.empty{display:flex;flex-direction:column;align-items:center;gap:6px;padding:34px 20px;text-align:center;color:var(--muted);background:#fff;border:2px dashed var(--line-d);border-radius:var(--r)}
.empty svg{width:40px;height:40px;color:var(--blue)}
.empty strong{font-family:var(--hand);font-size:30px;color:var(--ink)}
#toast{position:fixed;left:50%;bottom:22px;z-index:99;transform:translate(-50%,20px);max-width:calc(100vw - 32px);padding:12px 18px;background:var(--ink);color:#fff;font-weight:700;border-radius:var(--r-sm);opacity:0;pointer-events:none;transition:.2s;box-shadow:0 4px 0 #071a4d}
#toast.show{opacity:1;transform:translate(-50%,0)}
#toast.err{background:#c42640;box-shadow:0 4px 0 #8c1529}

/* ===== Навигация ===== */
#top-actions{display:flex;align-items:center;gap:12px}
.nav{display:flex;gap:4px;padding:4px;background:var(--blue-l);border-radius:999px}
.nav a{padding:6px 14px;border-radius:999px;font-weight:800;font-size:14px;color:var(--muted);text-decoration:none}
.nav a:hover{color:var(--blue)}
.nav a.on{background:#fff;color:var(--blue);box-shadow:0 2px 0 var(--line)}

/* ===== Оплата: значки ===== */
.rub{display:inline-grid;place-items:center;width:18px;height:18px;border-radius:5px;font-size:11.5px;font-weight:900;line-height:1;flex-shrink:0;color:#fff;font-family:"Nunito",sans-serif}
.rub-paid{background:var(--green)}
.rub-debt{background:var(--red)}
.rub-wait{background:#fff;color:#8a9bc4;box-shadow:inset 0 0 0 1.5px #b7c6e6}
.rub-school{background:#8fb2f7}
.chip-ic{display:inline-flex;gap:3px;margin-left:auto;flex-shrink:0}
.chip .rub{width:15px;height:15px;font-size:10px;border-radius:4px}
.chip-l1 .hw{margin-left:0}
.lr-ic{display:inline-flex;gap:5px;align-items:center}
.dot.dot-debt{box-shadow:0 0 0 2px #fff,0 0 0 3.5px var(--red)}
.badge.debt{background:var(--red-l);color:#b8203a;white-space:nowrap}
.ok{color:var(--green)}.bad{color:var(--red)}.school{color:#4b74d6}
.small{font-size:13px}
.invisible{visibility:hidden}
.stat-n.money{font-size:34px;white-space:nowrap}
.stat-n.school{color:#4b74d6}
.pill.pay-paid{background:var(--green-l);color:#0d7a43}
.pill.pay-debt{background:var(--red-l);color:#b8203a}
.pill.pay-wait{background:#eef2fb;color:var(--muted)}
.pill.pay-school{background:var(--blue-l);color:var(--blue)}
.pay-card.pc-debt{border-color:#ffb3bd;box-shadow:0 5px 0 #ffd6dc}
.pay-card.pc-paid{border-color:#9fe3bf;box-shadow:0 5px 0 #c9f0db}
.pay-quick{display:flex;flex-wrap:wrap;gap:4px 14px;align-items:flex-end;margin-top:8px}
.pay-quick .field{margin-bottom:6px;width:150px}
.pay-quick .btn-row{margin-bottom:6px}
.pay-block{padding:12px 16px 2px;margin:4px 0 12px;border:2px solid var(--line);border-radius:var(--r-sm);background:#f8fbff}
.pay-block h4{margin:0 0 10px}

/* ===== Вкладка «Оплата» ===== */
.pay-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-bottom:4px}
.big{font-family:var(--hand);font-size:46px;font-weight:700;line-height:1;margin-bottom:8px;color:var(--ink)}
.big.ok{color:var(--green)}.big.bad{color:var(--red)}
.debt-card{border-color:#ffb3bd;box-shadow:0 5px 0 #ffd6dc}
.debt-list{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.debt-chip{display:inline-flex;align-items:center;background:var(--red-l);border:1.5px solid #ffc2ca;border-radius:999px;overflow:hidden;font-size:13px;font-weight:800}
.debt-chip a{padding:4px 8px 4px 11px;color:#a51c33;text-decoration:none;white-space:nowrap}
.debt-chip a:hover{text-decoration:underline}
.debt-chip button{display:grid;place-items:center;width:28px;align-self:stretch;border:0;border-left:1.5px solid #ffc2ca;background:#fff;color:var(--green);cursor:pointer}
.debt-chip button:hover{background:var(--green);color:#fff}
.debt-chip button svg{width:14px;height:14px}
.prepay{display:flex;flex-wrap:wrap;gap:0 12px;align-items:flex-end}
.prepay .field{flex:1;min-width:140px}
.prepay .grow2{flex:2;min-width:200px}
.prepay .btn{margin-bottom:14px}
.prow{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:8px 12px;border:1.5px solid var(--line);border-radius:12px}
.prow .grow{flex:1;min-width:0}
.pay-rows{display:flex;flex-direction:column;gap:6px}
.pay-row{display:grid;grid-template-columns:minmax(0,1fr) auto 110px 170px;gap:10px;align-items:center;padding:6px 8px 6px 12px;border:1.5px solid var(--line);border-left:4px solid #b7c6e6;border-radius:10px;background:#fff}
.pay-row.paid{border-left-color:var(--green)}.pay-row.debt{border-left-color:var(--red);background:#fff8f9}.pay-row.school{border-left-color:#8fb2f7}
.pr-main{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;text-decoration:none;color:var(--ink)}
.pr-main:hover{color:var(--blue)}
.pay-row input,.pay-row select{width:100%;padding:7px 10px;border:2px solid var(--line);border-radius:10px;background:#fff;outline:none}
.pay-row select{appearance:none;padding-right:30px;cursor:pointer;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 9l6 6 6-6' fill='none' stroke='%231f4fd6' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat right 8px center/16px}
.pay-row input:focus,.pay-row select:focus{border-color:var(--blue)}

/* ===== Финансы ===== */
.month-switch{display:flex;align-items:center;gap:10px;position:relative;z-index:1}
.month-switch span{font-size:36px;color:var(--ink);min-width:200px;text-align:center}
.fin-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-bottom:10px}
.fin-cards .stat{flex-direction:column;align-items:flex-start;gap:4px}
.ftable{padding:6px 0;overflow:hidden}
.ft-row{display:grid;grid-template-columns:1.4fr .8fr 1fr 1fr 2fr 1fr .9fr;gap:12px;align-items:start;padding:12px 18px;border-top:1.5px solid #e4edff}
.ft-row:first-child{border-top:0}
.ft-head{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);padding-top:8px;padding-bottom:8px}
.ft-row>span{display:flex;flex-direction:column;gap:2px;min-width:0;font-weight:700}
.ft-name{font-weight:800;color:var(--ink);text-decoration:none}
.ft-name:hover{color:var(--blue)}
.ft-row .debt-list{margin-top:4px}

@media (max-width:1080px){.ft-row{grid-template-columns:1.3fr .7fr 1fr 1fr 1.6fr 1fr .8fr;font-size:14px}}
@media (max-width:860px){
  .ft-head{display:none}
  .ft-row{grid-template-columns:1fr 1fr;gap:8px 14px}
  .ft-row>span::before{content:attr(data-l);font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
  .ft-row>span:first-child,.ft-row>span[data-l="Долг"]{grid-column:1/-1}
  .ft-row>span:first-child::before{display:none}
  .ft-name{font-size:18px}
}
@media (max-width:760px){
  .nav a{padding:6px 10px;font-size:13px}
  .brand span:last-child{display:none}
  .pay-grid,.fin-cards{grid-template-columns:1fr 1fr;gap:8px}
  .pay-grid>section:first-child{grid-column:1/-1}
  .big{font-size:38px}
  .stat-n.money{font-size:26px}
  .pay-row{grid-template-columns:minmax(0,1fr) auto;gap:6px 8px}
  .pay-row input,.pay-row select{grid-column:span 1}
  .month-switch{justify-content:center}
  .month-switch span{font-size:30px;min-width:0;flex:1}
  .prepay .btn{width:100%}
}

/* ===== Пробники ===== */
.chip.mock{--c:#0d2a6e;background:repeating-linear-gradient(-45deg,#fff 0 6px,#eef3ff 6px 12px);border:1.5px dashed #6f8fd8;border-left:3px solid #0d2a6e}
.chip.mock .chip-time{color:#0d2a6e}
.dot.dot-mock{background:#0d2a6e;border-radius:2px;transform:rotate(45deg)}
.lrow.mock{--c:#0d2a6e;border-style:dashed;border-left-style:solid}
.mock-hero{--c:#0d2a6e;background:linear-gradient(135deg,#13307a,#071a4d)}
.mock-hero .lh-date{color:#13307a}
/* ===== Развёрнутая карточка в правой панели ученика ===== */
.acard{display:flex;flex-direction:column;gap:6px;padding:12px 14px;border:2px solid var(--line);border-left:5px solid var(--c,var(--blue));border-radius:var(--r-sm);background:#fff}
.acard.mock{--c:#0d2a6e;border-style:dashed;border-left-style:solid}
.acard .lr-top{justify-content:space-between}
.acard-title{margin:2px 0 0;font-size:17px;color:var(--ink);text-transform:none;letter-spacing:0;overflow-wrap:anywhere}
.acard-label{margin-top:6px;font-size:11.5px;font-weight:800;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.acard-notes{font-size:14px;line-height:1.55;max-height:260px;overflow:auto;padding:8px 10px;background:#f6f9ff;border-radius:10px}
.acard .fgrid{grid-template-columns:repeat(auto-fill,minmax(96px,1fr));gap:6px}
.acard .fthumb{height:64px}
.acard .btn{margin-top:6px}
.agenda .acard + .acard{margin-top:4px}
@media (min-width:1081px){.cal-layout:has(.acard){grid-template-columns:minmax(0,1fr) 380px}}

/* ===== Адаптив ===== */
@media (max-width:1080px){
  .cal-layout{grid-template-columns:1fr}
  .agenda{position:static}
  .lesson-cols{grid-template-columns:1fr}
}
@media (max-width:760px){
  .topbar{height:58px}
  .brand{font-size:22px}
  .main{padding:18px 14px 44px}
  .hero{flex-direction:column;align-items:stretch;padding:20px 18px}
  .hero-actions .btn{flex:1}
  .deco.d1{right:8%}.deco.d3,.deco.d4{display:none}
  .stats{gap:8px}
  .stat{flex-direction:column;gap:2px;padding:10px 12px}
  .stat-n{font-size:36px}
  .stat-l{font-size:13px}
  .cal{padding:12px 8px 10px}
  .cal-title{font-size:34px}
  .cal-head .btn{display:none}
  .cal-grid,.cal-wd{gap:3px}
  .day{min-height:54px;padding:3px;align-items:center;border-radius:10px}
  .chips{display:none}
  .dots{display:flex}
  .dnum{width:26px;height:26px;font-size:13px}
  .lesson-hero{flex-direction:column;align-items:flex-start;padding:20px}
  .lh-date{flex-direction:row;gap:8px;min-width:0;padding:8px 14px}
  .lh-date b{font-size:40px}
  .form-grid,.form-grid.three{grid-template-columns:1fr}
  .form-actions .btn{flex:1}
  .student-grid{grid-template-columns:1fr}
  .modal-wrap{padding:0;align-items:stretch}
  .modal,.modal.wide{max-width:none;border-radius:0;border:0;min-height:100%}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}