/* Учебные планы — оформление.
   Идея: мелованная бумага в клетку, синие чернила и красная ручка проверяющего.
   Карточки — «двойная рамка» (оболочка + ядро), движение — пружинистое, только transform/opacity. */

:root {
  /* Движение (transitions.dev) */
  --duration-stagger: 40ms;
  --duration-micro: 80ms;
  --duration-quick: 150ms;
  --duration-fast: 250ms;
  --duration-medium: 350ms;
  --duration-slow: 400ms;
  --duration-very-slow: 500ms;
  --ease-smooth-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-bounce: cubic-bezier(0.34, 1.36, 0.64, 1);
  --heavy: cubic-bezier(0.32, 0.72, 0, 1);

  --tabs-dur: 250ms;
  --tabs-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --modal-open-dur: 250ms;
  --modal-close-dur: 150ms;
  --modal-scale: 0.96;
  --modal-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dropdown-open-dur: 250ms;
  --dropdown-close-dur: 150ms;
  --dropdown-pre-scale: 0.97;
  --dropdown-closing-scale: 0.99;
  --dropdown-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --acc-expand: 250ms;
  --acc-collapse: 250ms;
  --acc-chevron: 250ms;
  --acc-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --toast-open: 350ms;
  --toast-close: 250ms;
  --toast-distance: 16px;
  --toast-blur: 2px;
  --toast-scale: 0.97;
  --toast-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --digit-dur: 500ms;
  --digit-distance: 8px;
  --digit-stagger: 70ms;
  --digit-blur: 2px;
  --digit-ease: cubic-bezier(0.34, 1.45, 0.64, 1);
  --stagger-dur: 500ms;
  --stagger-distance: 12px;
  --stagger-stagger: 40ms;
  --stagger-blur: 3px;
  --stagger-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --check-box: 150ms;
  --check-draw: 350ms;
  --check-uncheck: 150ms;
  --check-ease: cubic-bezier(0.22, 1, 0.36, 1);

  /* Палитра: мел, чернила, красная ручка */
  --paper: #f2f3ee;
  --paper-2: #e9ebe4;
  --grid: rgba(40, 58, 140, 0.06);
  --card: #fbfcf8;
  --shell: rgba(22, 24, 30, 0.035);
  --ink: #15171d;
  --ink-2: rgba(21, 23, 29, 0.66);
  --ink-3: rgba(21, 23, 29, 0.44);
  --hair: rgba(21, 23, 29, 0.08);
  --hair-2: rgba(21, 23, 29, 0.14);
  --pen: #2f43cf;
  --pen-2: #5466e6;
  --pen-soft: rgba(47, 67, 207, 0.09);
  --red: #c7412c;
  --red-soft: rgba(199, 65, 44, 0.1);
  --green: #24784a;
  --green-soft: rgba(36, 120, 74, 0.11);
  --amber: #a8660f;
  --amber-soft: rgba(184, 120, 20, 0.13);
  --glass: rgba(251, 252, 248, 0.72);
  --inset-hi: inset 0 1px 0 rgba(255, 255, 255, 0.9);
  --lift: 0 1px 2px rgba(21, 23, 29, 0.04), 0 12px 32px -16px rgba(21, 23, 29, 0.16);
  --scrim: rgba(18, 20, 26, 0.32);

  --tabs-text-muted: var(--ink-2);
  --tabs-text-active: var(--ink);
  --tabs-bar-bg: rgba(21, 23, 29, 0.05);
  --tabs-pill-bg: var(--card);

  --display: "Unbounded", "Onest", system-ui, sans-serif;
  --sans: "Onest", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;

  --r-outer: 1.75rem;
  --r-pad: 0.375rem;
  --r-inner: calc(var(--r-outer) - var(--r-pad));
  --gutter-l: max(16px, env(safe-area-inset-left, 0px));
  --gutter-r: max(16px, env(safe-area-inset-right, 0px));
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0f1014;
    --paper-2: #16181d;
    --grid: rgba(150, 165, 255, 0.045);
    --card: #191b21;
    --shell: rgba(255, 255, 255, 0.035);
    --ink: #eef0f5;
    --ink-2: rgba(238, 240, 245, 0.68);
    --ink-3: rgba(238, 240, 245, 0.42);
    --hair: rgba(255, 255, 255, 0.07);
    --hair-2: rgba(255, 255, 255, 0.13);
    --pen: #93a1ff;
    --pen-2: #b3bdff;
    --pen-soft: rgba(147, 161, 255, 0.12);
    --red: #ff8b76;
    --red-soft: rgba(255, 139, 118, 0.12);
    --green: #73d49c;
    --green-soft: rgba(115, 212, 156, 0.12);
    --amber: #f2b35b;
    --amber-soft: rgba(242, 179, 91, 0.13);
    --glass: rgba(25, 27, 33, 0.7);
    --inset-hi: inset 0 1px 0 rgba(255, 255, 255, 0.06);
    --lift: 0 1px 2px rgba(0, 0, 0, 0.3), 0 16px 40px -20px rgba(0, 0, 0, 0.6);
    --scrim: rgba(0, 0, 0, 0.55);
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 6rem; }
body {
  margin: 0;
  min-height: 100dvh;
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 24px 24px;
  background-attachment: fixed;
  color: var(--ink);
  font: 16px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
/* Мягкое чернильное пятно света */
body::before {
  content: "";
  position: fixed;
  inset: -30vh -20vw auto auto;
  width: 80vw; height: 80vh;
  pointer-events: none;
  z-index: -1;
  background: radial-gradient(closest-side, var(--pen-soft), transparent 70%);
}
/* Бумажное зерно */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 60;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

a { color: var(--pen); text-decoration-thickness: 1px; text-underline-offset: 3px; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--pen); outline-offset: 2px; border-radius: 10px; }
::selection { background: var(--pen-soft); }
[hidden] { display: none !important; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.mono { font-family: var(--mono); }
.muted { color: var(--ink-2); }
.num { font-variant-numeric: tabular-nums; }

.wrap {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding-left: var(--gutter-l);
  padding-right: var(--gutter-r);
}

/* ---------- Плавающий остров-навигация ---------- */
.island {
  position: fixed;
  top: calc(env(safe-area-inset-top, 0px) + 14px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px;
  border-radius: 999px;
  background: var(--glass);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  box-shadow: var(--lift), inset 0 0 0 1px var(--hair);
  max-width: calc(100vw - 24px);
}
.island .brand {
  display: flex; align-items: center; gap: 9px;
  padding: 4px 14px 4px 4px;
  color: var(--ink); text-decoration: none;
  font-weight: 600; font-size: 14.5px; white-space: nowrap;
}
.brand-mark {
  width: 32px; height: 32px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--ink); color: var(--card);
  font: 700 13px/1 var(--display);
}
.island a.nav {
  padding: 8px 14px; border-radius: 999px;
  color: var(--ink-2); text-decoration: none; font-size: 14px; font-weight: 500; white-space: nowrap;
  transition: background var(--duration-fast) var(--ease-smooth-out), color var(--duration-fast) var(--ease-smooth-out);
}
.island a.nav:hover { color: var(--ink); background: var(--hair); }
.island a.nav[aria-current="page"] { color: var(--ink); background: var(--card); box-shadow: inset 0 0 0 1px var(--hair); }
.island .saved {
  display: flex; align-items: center; gap: 6px;
  padding: 0 12px 0 8px; font-size: 12.5px; color: var(--ink-3); white-space: nowrap;
}
.island .saved i { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 3px var(--green-soft); }
.island .saved.warn i { background: var(--amber); box-shadow: 0 0 0 3px var(--amber-soft); }
@media (max-width: 640px) {
  .island .brand span:not(.brand-mark), .island .saved span { display: none; }
  .island .brand { padding-right: 4px; }
  .island .saved { padding: 0 10px 0 6px; }
}

main { padding-top: calc(env(safe-area-inset-top, 0px) + 92px); padding-bottom: 96px; }

/* ---------- Типографика ---------- */
.eyebrow {
  justify-self: start;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 12px; border-radius: 999px;
  background: var(--shell); box-shadow: inset 0 0 0 1px var(--hair);
  font-size: 11px; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-2);
}
.eyebrow i { width: 6px; height: 6px; border-radius: 50%; background: var(--green); }
h1, h2, h3 { margin: 0; text-wrap: balance; }
.h-display {
  font: 700 clamp(34px, 6.4vw, 68px)/1.02 var(--display);
  letter-spacing: -0.035em;
}
.h-2 { font: 700 clamp(22px, 3vw, 30px)/1.15 var(--display); letter-spacing: -0.02em; }
.h-3 { font: 600 19px/1.3 var(--sans); }
.lead { font-size: clamp(16px, 1.6vw, 18px); color: var(--ink-2); max-width: 58ch; margin: 0; }
.label {
  font-size: 11.5px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3);
}

/* ---------- Двойная рамка ---------- */
.shell {
  padding: var(--r-pad);
  border-radius: var(--r-outer);
  background: var(--shell);
  box-shadow: inset 0 0 0 1px var(--hair);
}
.core {
  border-radius: var(--r-inner);
  background: var(--card);
  box-shadow: var(--inset-hi), 0 1px 2px rgba(21, 23, 29, 0.03), 0 18px 40px -28px rgba(21, 23, 29, 0.22);
  padding: 22px;
  min-width: 0;
}
.core.tight { padding: 16px 18px; }

/* ---------- Кнопки: пилюля с иконкой в своём кружке ---------- */
.btn {
  appearance: none; border: 0; cursor: pointer;
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 8px 8px 20px; min-height: 44px;
  border-radius: 999px;
  font-size: 14.5px; font-weight: 600; text-decoration: none; white-space: nowrap;
  background: var(--card); color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--hair-2);
  transition: transform var(--duration-fast) var(--heavy), background var(--duration-fast) var(--ease-smooth-out), box-shadow var(--duration-fast) var(--ease-smooth-out);
}
.btn:not(:has(.ico)) { padding-right: 20px; }
.btn .ico {
  width: 30px; height: 30px; border-radius: 50%;
  display: grid; place-items: center; flex: none;
  background: var(--hair);
  transition: transform var(--duration-slow) var(--heavy);
}
.btn .ico svg { width: 15px; height: 15px; }
.btn:hover .ico { transform: translate(2px, -1px) scale(1.06); }
.btn:active { transform: scale(0.97); }
.btn.primary { background: var(--ink); color: var(--card); box-shadow: 0 10px 24px -12px rgba(21, 23, 29, 0.55); }
.btn.primary .ico { background: rgba(255, 255, 255, 0.14); }
.btn.pen { background: var(--pen); color: #fff; box-shadow: 0 10px 24px -12px var(--pen); }
.btn.pen .ico { background: rgba(255, 255, 255, 0.18); }
.btn.ghost { background: transparent; box-shadow: inset 0 0 0 1px var(--hair-2); }
.btn.danger { color: var(--red); background: var(--red-soft); box-shadow: none; }
.btn.small { min-height: 36px; padding: 6px 14px; font-size: 13.5px; }
.btn.small .ico { width: 24px; height: 24px; }
.btn.small:has(.ico) { padding-right: 6px; }
.btn[disabled] { opacity: 0.45; pointer-events: none; }
.icon-btn {
  appearance: none; border: 0; cursor: pointer;
  width: 40px; height: 40px; border-radius: 50%;
  display: inline-grid; place-items: center;
  background: var(--shell); color: var(--ink-2);
  box-shadow: inset 0 0 0 1px var(--hair);
  transition: transform var(--duration-fast) var(--heavy), color var(--duration-fast) var(--ease-smooth-out);
}
.icon-btn:hover { color: var(--ink); }
.icon-btn:active { transform: scale(0.94); }
.icon-btn svg { width: 17px; height: 17px; }
svg.line { fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- Статусы ---------- */
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 999px;
  font-size: 12.5px; font-weight: 600; line-height: 1.3; white-space: nowrap;
  background: var(--hair); color: var(--ink-2);
}
.pill i { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.st-none { background: var(--hair); color: var(--ink-2); }
.st-progress, .st-work { background: var(--pen-soft); color: var(--pen); }
.st-done, .st-closed { background: var(--green-soft); color: var(--green); }
.st-repeat { background: var(--amber-soft); color: var(--amber); }
.st-miss { background: var(--red-soft); color: var(--red); }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 999px; font-size: 12.5px; color: var(--ink-2);
  box-shadow: inset 0 0 0 1px var(--hair-2); white-space: nowrap;
}

/* ---------- Появление при прокрутке ---------- */
.js .reveal {
  opacity: 0;
  transform: translateY(28px);
  filter: blur(6px);
  transition: opacity 800ms var(--heavy), transform 800ms var(--heavy), filter 800ms var(--heavy);
  transition-delay: calc(var(--i, 0) * 60ms);
}
.js .reveal.in { opacity: 1; transform: none; filter: none; }

/* ---------- Смена экранов ---------- */
.view { animation: view-in 520ms var(--heavy) both; }
@keyframes view-in {
  from { opacity: 0; transform: translateY(14px); filter: blur(4px); }
  to { opacity: 1; transform: none; filter: none; }
}

/* ---------- Список учеников ---------- */
.hero { display: grid; gap: 22px; padding-block: 40px 44px; }
.hero-row { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 20px; }
.students { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 18px; }
.students > * { grid-column: span 4; }
.students > .wide { grid-column: span 8; }
@media (max-width: 1000px) { .students > *, .students > .wide { grid-column: span 6; } }
@media (max-width: 680px) { .students > *, .students > .wide { grid-column: 1 / -1; } }

.s-card { display: block; text-decoration: none; color: inherit; height: 100%; }
.s-card .shell { height: 100%; transition: transform var(--duration-slow) var(--heavy); }
.s-card .core { height: 100%; display: grid; gap: 18px; align-content: start; transition: box-shadow var(--duration-slow) var(--heavy); }
.s-card:hover .shell { transform: translateY(-4px); }
.s-card:hover .core { box-shadow: var(--inset-hi), 0 30px 50px -30px rgba(21, 23, 29, 0.32); }
.s-card:active .shell { transform: scale(0.985); }
.s-top { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }
.s-name { font: 600 21px/1.2 var(--sans); letter-spacing: -0.01em; margin: 6px 0 0; overflow-wrap: anywhere; }
.s-meta { display: flex; flex-wrap: wrap; gap: 6px; }
.s-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; padding-top: 14px; border-top: 1px dashed var(--hair-2); }
.s-stats b { display: block; font: 700 19px/1.1 var(--display); letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.s-stats span { font-size: 12px; color: var(--ink-3); }

.add-card {
  appearance: none; border: 0; cursor: pointer; width: 100%; height: 100%; min-height: 220px;
  border-radius: var(--r-outer);
  background: transparent;
  box-shadow: inset 0 0 0 1.5px var(--hair-2);
  border: 1.5px dashed transparent;
  display: grid; place-items: center; gap: 10px; text-align: center; color: var(--ink-2);
  transition: background var(--duration-fast) var(--ease-smooth-out), transform var(--duration-slow) var(--heavy);
}
.add-card:hover { background: var(--shell); color: var(--ink); }
.add-card:active { transform: scale(0.985); }
.add-card .plus {
  width: 54px; height: 54px; border-radius: 50%; display: grid; place-items: center;
  background: var(--ink); color: var(--card); margin: 0 auto 8px;
  transition: transform var(--duration-slow) var(--ease-bounce);
}
.add-card:hover .plus { transform: rotate(90deg) scale(1.05); }

/* Пустое состояние */
.empty-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; counter-reset: st; }
.empty-steps .core { display: grid; gap: 8px; }
.empty-steps .core::before {
  counter-increment: st; content: counter(st);
  font: 700 28px/1 var(--display); color: var(--pen);
}
@media (max-width: 760px) { .empty-steps { grid-template-columns: 1fr; } }

/* ---------- Кольцо прогресса ---------- */
.ring { position: relative; width: var(--size, 64px); height: var(--size, 64px); flex: none; }
.ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring circle { fill: none; stroke-width: var(--sw, 7); }
.ring .bg { stroke: var(--hair); }
.ring .fg {
  stroke: var(--pen); stroke-linecap: round;
  stroke-dasharray: var(--c) var(--c);
  stroke-dashoffset: var(--c);
  transition: stroke-dashoffset 1100ms var(--heavy);
}
.ring.in .fg { stroke-dashoffset: var(--off); }
.ring b {
  position: absolute; inset: 0; display: grid; place-items: center;
  font: 700 calc(var(--size, 64px) * 0.24)/1 var(--display); letter-spacing: -0.03em; font-variant-numeric: tabular-nums;
}

/* ---------- Карточка ученика ---------- */
.s-head { display: grid; gap: 18px; padding-block: 18px 26px; }
.s-head-row { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-end; gap: 18px; }
.back { display: inline-flex; align-items: center; gap: 8px; color: var(--ink-2); text-decoration: none; font-size: 14px; font-weight: 500; }
.back:hover { color: var(--ink); }
.back svg { transition: transform var(--duration-fast) var(--heavy); }
.back:hover svg { transform: translateX(-3px); }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }

/* Скользящие вкладки */
.tabs-wrap { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 72px); z-index: 20; padding-block: 8px; margin-bottom: 18px; }
.tabs-scroll { overflow-x: auto; scrollbar-width: none; max-width: 100%; }
.tabs-scroll::-webkit-scrollbar { display: none; }
.t-tabs {
  position: relative; display: inline-flex; align-items: center; gap: 3px;
  padding: 4px; border-radius: 48px;
  background: var(--glass);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  box-shadow: inset 0 0 0 1px var(--hair), var(--lift);
}
.t-tab {
  position: relative; appearance: none; border: 0; background: transparent;
  height: 38px; padding: 4px 16px; color: var(--tabs-text-muted);
  cursor: pointer; border-radius: 48px; z-index: 1; white-space: nowrap;
  font-size: 14.5px; font-weight: 500;
  transition: color var(--tabs-dur) var(--tabs-ease);
}
.t-tab:not([aria-selected="true"]):hover, .t-tab[aria-selected="true"] { color: var(--tabs-text-active); }
.t-tabs-pill {
  position: absolute; top: 4px; left: 0; height: 38px; width: 0;
  background: var(--tabs-pill-bg); border-radius: 48px;
  box-shadow: 0 1px 2px rgba(21, 23, 29, 0.08), inset 0 0 0 1px var(--hair);
  transform: translateX(0);
  transition: transform var(--tabs-dur) var(--tabs-ease), width var(--tabs-dur) var(--tabs-ease);
  will-change: transform, width; z-index: 0; pointer-events: none;
}
.t-tabs.small .t-tab { height: 32px; padding: 4px 13px; font-size: 13.5px; }
.t-tabs.small .t-tabs-pill { height: 32px; }

.panel-in { animation: panel-in 420ms var(--ease-smooth-out) both; }
@keyframes panel-in { from { opacity: 0; transform: translateY(8px); filter: blur(2px); } to { opacity: 1; transform: none; filter: none; } }

/* Бенто обзора */
.bento { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 18px; }
.c-7 { grid-column: span 7; } .c-5 { grid-column: span 5; } .c-4 { grid-column: span 4; }
.c-8 { grid-column: span 8; } .c-6 { grid-column: span 6; } .c-12 { grid-column: 1 / -1; }
@media (max-width: 900px) { .c-7, .c-5, .c-8, .c-4 { grid-column: span 6; } }
@media (max-width: 640px) { .bento > * { grid-column: 1 / -1 !important; } }
.bento .shell { height: 100%; }
.bento .core { height: 100%; }
.kpi { display: grid; gap: 6px; align-content: start; }
.kpi-big { font: 700 clamp(56px, 9vw, 96px)/0.95 var(--display); letter-spacing: -0.05em; font-variant-numeric: tabular-nums; }
.kpi-mid { font: 700 clamp(30px, 4vw, 40px)/1 var(--display); letter-spacing: -0.04em; font-variant-numeric: tabular-nums; }
.kpi-row { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 22px; }
.bar { height: 8px; border-radius: 99px; background: var(--hair); overflow: hidden; }
.bar i {
  display: block; height: 100%; border-radius: inherit; background: var(--pen);
  transform-origin: left; transform: scaleX(0);
  transition: transform 1100ms var(--heavy);
}
.bar.in i { transform: scaleX(var(--v, 0)); }
.bar.green i { background: var(--green); }
.bar.amber i { background: var(--amber); }
.bar.red i { background: var(--red); }
.legend { display: flex; justify-content: space-between; font-size: 13px; color: var(--ink-2); gap: 10px; }
.note-line { font-size: 14px; color: var(--ink-2); margin: 0; }
.note-line.warn { color: var(--amber); }
.note-line.bad { color: var(--red); }
.list-plain { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.list-plain li { display: flex; align-items: baseline; gap: 10px; font-size: 14.5px; }
.list-plain li b { font: 600 13px var(--mono); color: var(--pen); min-width: 44px; }

/* Цифры с подскоком */
.t-digit-group { display: inline-flex; align-items: baseline; }
.t-digit { display: inline-block; will-change: transform, opacity, filter; }
@keyframes t-digit-pop-in {
  0% { transform: translate(0, var(--digit-distance)); opacity: 0; filter: blur(var(--digit-blur)); }
  100% { transform: translate(0, 0); opacity: 1; filter: blur(0); }
}
.t-digit-group.is-animating .t-digit { animation: t-digit-pop-in var(--digit-dur) var(--digit-ease) both; animation-delay: calc(var(--d, 0) * var(--digit-stagger)); }

/* ---------- Программа ---------- */
.block { display: grid; gap: 12px; margin-bottom: 34px; }
.block-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 14px; padding: 0 4px 10px; border-bottom: 1.5px solid var(--ink); }
.block-head .lbl { font: 700 12px/1 var(--display); letter-spacing: 0.06em; text-transform: uppercase; color: var(--pen); }
.block-head h3 { font: 600 18px/1.3 var(--sans); }
.block-head .meta { margin-left: auto; font-size: 13px; color: var(--ink-3); }

.t-acc { border-radius: var(--r-outer); }
.task .core { padding: 0; overflow: hidden; }
.t-acc-head {
  appearance: none; border: 0; background: transparent; cursor: pointer; width: 100%; text-align: left;
  display: grid; grid-template-columns: 72px minmax(0, 1fr) auto; align-items: center; gap: 14px;
  padding: 16px 18px;
}
.t-acc-head .no { font: 700 22px/1 var(--display); color: var(--pen); letter-spacing: -0.03em; white-space: nowrap; }
.t-acc-head .no.wide { font-size: 16px; }
.t-acc-head .ttl { display: grid; gap: 6px; min-width: 0; }
.t-acc-head .ttl b { font-weight: 600; font-size: 16.5px; line-height: 1.3; }
.t-acc-head .ttl .row { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; font-size: 13px; color: var(--ink-3); }
.mini-bar { width: 64px; height: 5px; border-radius: 9px; background: var(--hair); overflow: hidden; display: inline-block; vertical-align: middle; }
.mini-bar i { display: block; height: 100%; background: var(--green); border-radius: inherit; transform-origin: left; transition: transform var(--duration-slow) var(--heavy); }
.t-acc-chevron {
  width: 34px; height: 34px; border-radius: 50%; display: inline-grid; place-items: center; background: var(--hair); color: var(--ink-2);
  transform: scaleY(1); transform-origin: center; transition: transform var(--acc-chevron) var(--acc-ease);
}
.t-acc-chevron svg { width: 16px; height: 16px; }
.t-acc-chevron path { vector-effect: non-scaling-stroke; }
.t-acc[data-open="true"] .t-acc-chevron { transform: scaleY(-1); }
.t-acc-panel { display: grid; grid-template-rows: 0fr; transition: grid-template-rows var(--acc-collapse) var(--acc-ease); }
.t-acc[data-open="true"] .t-acc-panel { grid-template-rows: 1fr; transition: grid-template-rows var(--acc-expand) var(--acc-ease); }
.t-acc-panel-inner { overflow: hidden; opacity: 0; filter: blur(2px); transition: opacity var(--acc-collapse) var(--acc-ease), filter var(--acc-collapse) var(--acc-ease); }
.t-acc[data-open="true"] .t-acc-panel-inner { opacity: 1; filter: blur(0); transition: opacity var(--acc-expand) var(--acc-ease), filter var(--acc-expand) var(--acc-ease); }
.acc-body { padding: 0 18px 18px; display: grid; gap: 14px; }
.links { display: flex; flex-wrap: wrap; gap: 8px; }
.link-pill {
  display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border-radius: 999px;
  background: var(--pen-soft); color: var(--pen); text-decoration: none; font-size: 13px; font-weight: 600;
  transition: transform var(--duration-fast) var(--heavy);
}
.link-pill:hover { transform: translateY(-1px); }
.task-note { font-size: 13.5px; color: var(--ink-2); font-style: italic; margin: 0; }

.topics { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--hair); }
.topic {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 4px 14px; align-items: center;
  padding: 11px 0; border-bottom: 1px solid var(--hair);
}
.topic .tn { font-size: 15px; font-weight: 500; }
.topic .ex { grid-column: 1; font: 12.5px/1.55 var(--mono); color: var(--ink-3); overflow-wrap: anywhere; }
.topic .ex::before { content: "тетрадь  "; font-family: var(--sans); }
.topic .ctl { grid-column: 2; grid-row: 1 / span 2; display: flex; align-items: center; gap: 8px; }
.topic .d { font-size: 12px; color: var(--ink-3); white-space: nowrap; }
@media (max-width: 560px) {
  .topic { grid-template-columns: minmax(0, 1fr) auto; }
  .topic .ctl { grid-row: 1; }
  .topic .ex { grid-column: 1 / -1; }
  .topic .d { display: none; }
}
.grp-title { padding: 14px 0 4px; font-size: 11.5px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--pen); }

/* Кнопка статуса темы + меню */
.status-btn {
  appearance: none; border: 0; cursor: pointer;
  display: inline-flex; align-items: center; gap: 7px; padding: 7px 10px 7px 12px;
  border-radius: 999px; font-size: 13px; font-weight: 600; white-space: nowrap;
  transition: transform var(--duration-fast) var(--heavy), background var(--duration-fast) var(--ease-smooth-out), color var(--duration-fast) var(--ease-smooth-out);
}
.status-btn:active { transform: scale(0.95); }
.status-btn svg { width: 12px; height: 12px; opacity: 0.7; }
.t-dropdown {
  position: fixed; z-index: 45; min-width: 210px;
  padding: 6px; border-radius: 18px;
  background: var(--card);
  box-shadow: 0 0 0 1px var(--hair), 0 24px 48px -16px rgba(21, 23, 29, 0.35);
  transform-origin: top right; transform: scale(var(--dropdown-pre-scale)); opacity: 0; pointer-events: none;
  transition: transform var(--dropdown-open-dur) var(--dropdown-ease), opacity var(--dropdown-open-dur) var(--dropdown-ease);
  will-change: transform, opacity;
}
.t-dropdown[data-origin="bottom-right"] { transform-origin: bottom right; }
.t-dropdown.is-open { transform: scale(1); opacity: 1; pointer-events: auto; }
.t-dropdown.is-closing {
  transform: scale(var(--dropdown-closing-scale)); opacity: 0; pointer-events: none;
  transition: transform var(--dropdown-close-dur) var(--dropdown-ease), opacity var(--dropdown-close-dur) var(--dropdown-ease);
}
.t-dropdown button {
  appearance: none; border: 0; background: transparent; cursor: pointer; width: 100%;
  display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 12px; text-align: left;
  font-size: 14.5px; font-weight: 500;
}
.t-dropdown button:hover, .t-dropdown button:focus-visible { background: var(--hair); outline: none; }
.t-dropdown button .dot { width: 10px; height: 10px; border-radius: 50%; }
.t-dropdown button[aria-checked="true"]::after { content: "✓"; margin-left: auto; color: var(--pen); }

/* Зачёты по номеру */
.checks { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
@media (max-width: 520px) { .checks { grid-template-columns: 1fr; } }
.check-box { display: grid; gap: 6px; padding: 12px 14px; border-radius: 16px; background: var(--red-soft); }
.check-box.ok { background: var(--green-soft); }
.check-box label { font-size: 13px; font-weight: 600; color: var(--red); display: flex; justify-content: space-between; gap: 8px; }
.check-box.ok label { color: var(--green); }
.check-box .in { display: flex; align-items: center; gap: 8px; }
.pct-input {
  width: 92px; padding: 8px 12px; border-radius: 12px; border: 0;
  background: var(--card); box-shadow: inset 0 0 0 1px var(--hair-2);
  font: 600 16px var(--mono); font-variant-numeric: tabular-nums;
}
.pct-input:focus { outline: 2px solid var(--pen); }
.block-test { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 18px; padding: 14px 18px; border-radius: 20px; border: 1.5px dashed var(--red); color: var(--red); font-weight: 600; }
.block-test.ok { border-color: var(--green); color: var(--green); }
.block-test .in { margin-left: auto; display: flex; align-items: center; gap: 8px; color: var(--ink-2); font-weight: 500; font-size: 14px; }

/* Финиш */
.finish { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
@media (max-width: 640px) { .finish { grid-template-columns: 1fr; } }
.finish .core b { display: block; font: 700 24px/1.1 var(--display); color: var(--pen); margin-bottom: 4px; }

/* ---------- Списки занятий и пробников ---------- */
.rows { display: grid; gap: 10px; }
.row-card {
  display: grid; grid-template-columns: 92px minmax(0, 1fr) auto; gap: 6px 16px; align-items: center;
  padding: 14px 16px; border-radius: 20px; background: var(--card);
  box-shadow: var(--inset-hi), inset 0 0 0 1px var(--hair);
}
.row-card .dt { font: 600 14px/1.2 var(--mono); }
.row-card .dt small { display: block; font: 500 12px var(--sans); color: var(--ink-3); margin-top: 3px; }
.row-card .main { display: grid; gap: 6px; min-width: 0; }
.row-card .main b { font-weight: 600; font-size: 15px; }
.row-card .main .tags { display: flex; flex-wrap: wrap; gap: 6px; }
.row-card .main p { margin: 0; font-size: 13.5px; color: var(--ink-2); overflow-wrap: anywhere; }
.row-card .side { display: flex; gap: 6px; }
@media (max-width: 560px) {
  .row-card { grid-template-columns: minmax(0, 1fr) auto; }
  .row-card .dt { grid-column: 1; }
  .row-card .main { grid-column: 1 / -1; grid-row: 2; }
  .row-card .side { grid-column: 2; grid-row: 1; }
}
.section-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.stats-row { display: flex; flex-wrap: wrap; gap: 10px 26px; margin-bottom: 18px; }
.stats-row div { display: grid; }
.stats-row b { font: 700 24px/1.1 var(--display); letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.stats-row span { font-size: 12.5px; color: var(--ink-3); }
.mock-score { font: 700 26px/1 var(--display); letter-spacing: -0.03em; text-align: right; }
.mock-score small { display: block; font: 500 12px var(--sans); color: var(--ink-3); margin-top: 4px; letter-spacing: 0; }
.chart { width: 100%; height: auto; display: block; }
.chart text { fill: var(--ink-3); font: 11px var(--mono); }
.empty-note { padding: 34px 20px; text-align: center; color: var(--ink-2); border-radius: var(--r-outer); box-shadow: inset 0 0 0 1.5px var(--hair-2); }

/* ---------- Формы ---------- */
.form { display: grid; gap: 16px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 16px; }
@media (max-width: 560px) { .form-grid { grid-template-columns: 1fr; } }
.field { display: grid; gap: 6px; min-width: 0; }
.field.full { grid-column: 1 / -1; }
.field > span { font-size: 13px; font-weight: 600; color: var(--ink-2); }
.field small { font-size: 12.5px; color: var(--ink-3); }
.input {
  width: 100%; min-height: 46px; padding: 11px 14px; border: 0; border-radius: 14px;
  background: var(--paper); box-shadow: inset 0 0 0 1px var(--hair-2);
  font-size: 15.5px;
  transition: box-shadow var(--duration-fast) var(--ease-smooth-out);
}
textarea.input { min-height: 84px; resize: vertical; line-height: 1.45; }
.input:focus { outline: none; box-shadow: inset 0 0 0 2px var(--pen); }
select.input { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 6.5L8 10.5L12 6.5' fill='none' stroke='%23888' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; background-size: 16px; padding-right: 38px; }
.seg { display: inline-flex; flex-wrap: wrap; gap: 6px; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg label {
  cursor: pointer; padding: 9px 14px; border-radius: 999px; font-size: 14px; font-weight: 500;
  box-shadow: inset 0 0 0 1px var(--hair-2); color: var(--ink-2);
  transition: background var(--duration-fast) var(--ease-smooth-out), color var(--duration-fast) var(--ease-smooth-out), transform var(--duration-fast) var(--heavy);
}
.seg label:active { transform: scale(0.96); }
.seg input:checked + label { background: var(--ink); color: var(--card); box-shadow: none; }
.seg input:focus-visible + label { outline: 2px solid var(--pen); outline-offset: 2px; }
.seg.green input:checked + label.ok { background: var(--green); }
.seg.green input:checked + label.bad { background: var(--red); }
.form-actions { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; padding-top: 6px; }
.form-actions .right { display: flex; gap: 8px; margin-left: auto; }
.error-text { color: var(--red); font-size: 13.5px; margin: 0; }

/* ---------- Модальное окно ---------- */
.modal-root { position: fixed; inset: 0; z-index: 40; display: grid; place-items: center; padding: 16px; padding-top: calc(env(safe-area-inset-top, 0px) + 16px); padding-bottom: calc(env(safe-area-inset-bottom, 0px) + 16px); }
.scrim { position: absolute; inset: 0; background: var(--scrim); opacity: 0; transition: opacity var(--modal-open-dur) var(--modal-ease); }
.modal-root.is-open .scrim { opacity: 1; }
.modal-root.is-closing .scrim { opacity: 0; transition-duration: var(--modal-close-dur); }
.t-modal {
  position: relative; width: min(640px, 100%); max-height: calc(100dvh - 32px - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px)); overflow: auto;
  border-radius: var(--r-outer); background: var(--card);
  box-shadow: 0 0 0 1px var(--hair), 0 40px 80px -30px rgba(0, 0, 0, 0.45);
  transform-origin: center; transform: scale(var(--modal-scale)); opacity: 0; pointer-events: none;
  transition: transform var(--modal-open-dur) var(--modal-ease), opacity var(--modal-open-dur) var(--modal-ease);
  will-change: transform, opacity;
}
.t-modal.wide { width: min(880px, 100%); }
.modal-root.is-open .t-modal { transform: scale(1); opacity: 1; pointer-events: auto; }
.modal-root.is-closing .t-modal { transform: scale(var(--modal-scale)); opacity: 0; pointer-events: none; transition: transform var(--modal-close-dur) var(--modal-ease), opacity var(--modal-close-dur) var(--modal-ease); }
.modal-head { position: sticky; top: 0; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 20px 22px 14px; background: var(--card); }
.modal-head h2 { font: 700 20px/1.2 var(--display); letter-spacing: -0.02em; }
.modal-body { padding: 4px 22px 22px; }
@media (max-width: 560px) {
  .modal-root { place-items: end center; padding: 0; padding-top: calc(env(safe-area-inset-top, 0px) + 24px); }
  .t-modal { width: 100%; border-radius: var(--r-outer) var(--r-outer) 0 0; max-height: calc(100dvh - env(safe-area-inset-top, 0px) - 24px); padding-bottom: env(safe-area-inset-bottom, 0px); transform: translateY(40px); }
  .modal-root.is-open .t-modal { transform: none; }
  .modal-root.is-closing .t-modal { transform: translateY(40px); }
}

/* Предпросмотр картинки */
.preview-box { display: grid; place-items: center; padding: 14px; border-radius: 22px; background: var(--paper-2); margin: 14px 0; }
.preview-box canvas, .preview-box img { width: min(100%, 380px); height: auto; border-radius: 14px; box-shadow: 0 20px 40px -24px rgba(0, 0, 0, 0.45); }
.t-shimmer {
  background: linear-gradient(90deg, var(--ink-3) 0%, var(--ink-3) 40%, var(--ink) 50%, var(--ink-3) 60%, var(--ink-3) 100%);
  background-size: 200% 100%; -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: shimmer 1.6s linear infinite;
}
@keyframes shimmer { from { background-position: 100% 0; } to { background-position: -100% 0; } }

/* ---------- Тост ---------- */
.toast-root { position: fixed; left: 50%; bottom: calc(env(safe-area-inset-bottom, 0px) + 22px); transform: translateX(-50%); z-index: 50; display: grid; gap: 8px; justify-items: center; pointer-events: none; width: max-content; max-width: calc(100vw - 32px); }
.t-toast {
  display: flex; align-items: center; gap: 10px; padding: 12px 18px; border-radius: 999px;
  background: var(--ink); color: var(--card); font-size: 14.5px; font-weight: 500;
  box-shadow: 0 18px 40px -16px rgba(0, 0, 0, 0.5);
  opacity: 0; transform: translateY(var(--toast-distance)) scale(var(--toast-scale)); filter: blur(var(--toast-blur));
  will-change: transform, opacity, filter;
  transition: opacity var(--toast-close) var(--toast-ease), transform var(--toast-close) var(--toast-ease), filter var(--toast-close) var(--toast-ease);
}
.t-toast.is-open { opacity: 1; transform: none; filter: blur(0); transition: opacity var(--toast-open) var(--toast-ease), transform var(--toast-open) var(--toast-ease), filter var(--toast-open) var(--toast-ease); }
.t-toast .ok { width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; background: var(--green); color: #fff; }
.t-toast .ok path { stroke-dasharray: 15; stroke-dashoffset: 15; animation: draw 420ms var(--ease-smooth-out) 120ms forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }

/* ---------- Баннер про копию ---------- */
.banner { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 18px; padding: 14px 16px 14px 20px; border-radius: 22px; background: var(--amber-soft); color: var(--ink); margin-bottom: 22px; }
.banner p { margin: 0; flex: 1 1 260px; font-size: 14.5px; }
.banner b { color: var(--amber); }

/* ---------- Копия данных ---------- */
.backup-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
@media (max-width: 760px) { .backup-grid { grid-template-columns: 1fr; } }
.backup-grid .core { display: grid; gap: 14px; align-content: start; height: 100%; }
.facts { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.facts li { display: flex; gap: 12px; font-size: 15px; color: var(--ink-2); }
.facts li::before { content: ""; width: 8px; height: 8px; margin-top: 8px; border-radius: 50%; background: var(--pen); flex: none; }

footer.foot { padding-block: 24px 40px; color: var(--ink-3); font-size: 13px; }

/* Подвал с автором */
main { padding-bottom: 48px; }
.author { padding-block: 0 calc(36px + env(safe-area-inset-bottom, 0px)); }
.author-in {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px;
  padding-top: 20px; border-top: 1px dashed var(--hair-2);
  font-size: 13.5px; color: var(--ink-3);
}
.author-label { font-size: 11px; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; }
.author-link {
  color: var(--ink-2); text-decoration: none; font-weight: 600;
  padding: 5px 12px; border-radius: 999px; box-shadow: inset 0 0 0 1px var(--hair-2);
  transition: color var(--duration-fast) var(--ease-smooth-out), background var(--duration-fast) var(--ease-smooth-out);
}
.author-link:hover { color: var(--ink); background: var(--shell); }
@media (max-width: 1060px) {
  body:has(.bl-dock) .author { padding-bottom: calc(96px + env(safe-area-inset-bottom, 0px)); }
}

/* ================= Конструктор программы ================= */
.plan-src { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px; }
.plan-src > div { flex: 1 1 320px; min-width: 0; }

.bl .s-head { gap: 14px; }
.bl-title { font-size: clamp(30px, 5vw, 54px); overflow-wrap: anywhere; }
.bl-name {
  width: 100%; border: 0; background: transparent; padding: 4px 0; border-bottom: 2px dashed var(--hair-2);
  font: 700 clamp(26px, 4.4vw, 46px)/1.1 var(--display); letter-spacing: -0.03em; color: var(--ink);
}
.bl-name:focus { outline: none; border-bottom-color: var(--pen); }
.bl-name::placeholder { color: var(--ink-3); }
.shake { animation: shake 420ms cubic-bezier(0.36, 0.07, 0.19, 0.97); border-bottom-color: var(--red) !important; }
@keyframes shake { 20%, 60% { transform: translateX(-6px); } 40%, 80% { transform: translateX(6px); } }
.bl-toolbar { display: flex; flex-wrap: wrap; gap: 8px; }
.bl-toolbar .btn svg.line { width: 14px; height: 14px; }

.bl-grid { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 26px; align-items: start; }
.bl-side { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 84px); max-height: calc(100dvh - 104px); overflow-y: auto; scrollbar-width: thin; border-radius: var(--r-outer); }
.bl-hint { display: flex; align-items: center; gap: 8px; margin: 0 0 14px; font-size: 13.5px; color: var(--ink-3); }
.bl-hint svg { flex: none; color: var(--ink-3); }
.bl-blocks { display: grid; gap: 18px; }

/* Блок */
.bb { border-radius: var(--r-outer); background: var(--shell); box-shadow: inset 0 0 0 1px var(--hair); padding: 10px; }
.bb-head { display: flex; align-items: center; gap: 8px 10px; padding: 4px 6px 10px; flex-wrap: wrap; }
.bb-head .lbl { font: 700 11.5px/1 var(--display); letter-spacing: 0.06em; text-transform: uppercase; color: var(--pen); white-space: nowrap; }
.bb-title {
  flex: 1 1 200px; min-width: 0; border: 0; background: transparent; padding: 6px 8px; border-radius: 10px; resize: none; overflow: hidden; display: block;
  font: 600 17px/1.3 var(--sans); color: var(--ink);
  transition: background var(--duration-fast) var(--ease-smooth-out);
}
.bb-title:hover { background: var(--hair); }
.bb-title:focus { outline: none; background: var(--card); box-shadow: inset 0 0 0 2px var(--pen); }
.bb-meta { font-size: 12.5px; color: var(--ink-3); white-space: nowrap; }
.bi-list { display: grid; gap: 8px; min-height: 58px; border-radius: 20px; }
.dropzone {
  display: grid; place-items: center; min-height: 58px; padding: 12px; border-radius: 18px; text-align: center;
  border: 1.5px dashed var(--hair-2); color: var(--ink-3); font-size: 13.5px;
}
.bi-list:has(.dnd-ph) > .dropzone { display: none; }
.bb-test {
  display: flex; align-items: center; gap: 10px; margin: 10px 6px 2px; font-size: 13.5px; color: var(--ink-2); cursor: pointer; width: fit-content;
}
.bb-test input { position: absolute; opacity: 0; pointer-events: none; }
.tgl {
  position: relative; width: 34px; height: 20px; border-radius: 99px; background: var(--hair-2); flex: none;
  transition: background var(--duration-fast) var(--ease-smooth-out);
}
.tgl::after {
  content: ""; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 50%; background: var(--card);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  transition: transform var(--duration-slow) cubic-bezier(0.34, 1.56, 0.64, 1);
}
.bb-test input:checked + .tgl { background: var(--red); }
.bb-test input:checked + .tgl::after { transform: translateX(14px); }
.bb-test input:focus-visible + .tgl { outline: 2px solid var(--pen); outline-offset: 2px; }

/* Номер */
.bi {
  border-radius: 18px; background: var(--card);
  box-shadow: var(--inset-hi), 0 0 0 1px var(--hair), 0 6px 16px -14px rgba(21, 23, 29, 0.35);
  transition: box-shadow var(--duration-fast) var(--ease-smooth-out);
}
.bi:hover { box-shadow: var(--inset-hi), 0 0 0 1px var(--hair-2), 0 10px 22px -16px rgba(21, 23, 29, 0.4); }
.bi-row {
  display: grid; grid-template-columns: auto 58px minmax(0, 1fr) auto auto auto auto; align-items: center; gap: 8px;
  padding: 8px 8px 8px 4px;
}
.bi .no { font: 700 17px/1 var(--display); color: var(--pen); letter-spacing: -0.02em; white-space: nowrap; }
.bi .no.wide { font-size: 13px; }
.bi-main { display: grid; gap: 3px; min-width: 0; }
.bi-main b { font-weight: 600; font-size: 15px; line-height: 1.25; }
.bi-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 8px; font-size: 12.5px; color: var(--ink-3); }
.warn-t { color: var(--amber); font-weight: 600; }
.rec { padding: 2px 8px; border-radius: 99px; font-size: 11.5px; font-weight: 600; white-space: nowrap; }
.rec-goal { background: var(--green-soft); color: var(--green); }
.rec-extra { background: var(--pen-soft); color: var(--pen); }
.rec-skip { background: var(--hair); color: var(--ink-3); }
.grip {
  appearance: none; border: 0; background: transparent; color: var(--ink-3); cursor: grab;
  width: 30px; height: 40px; border-radius: 10px; display: grid; place-items: center; touch-action: none;
  transition: color var(--duration-fast) var(--ease-smooth-out), background var(--duration-fast) var(--ease-smooth-out);
}
.grip:hover { color: var(--ink); background: var(--hair); }
.grip:active { cursor: grabbing; }
body.is-dragging, body.is-dragging * { cursor: grabbing !important; user-select: none; -webkit-user-select: none; }

.lvl { display: inline-flex; padding: 3px; gap: 2px; border-radius: 99px; background: var(--hair); }
.lvl button {
  appearance: none; border: 0; background: transparent; cursor: pointer; padding: 5px 9px; border-radius: 99px;
  font-size: 12px; font-weight: 500; color: var(--ink-2); white-space: nowrap;
  transition: background var(--duration-fast) var(--ease-smooth-out), color var(--duration-fast) var(--ease-smooth-out), transform var(--duration-fast) var(--heavy);
}
.lvl button:active { transform: scale(0.94); }
.lvl button[aria-checked="true"] { background: var(--card); color: var(--ink); box-shadow: 0 1px 2px rgba(21, 23, 29, 0.12); }
.lvl button[data-lvl="part"][aria-checked="true"] { color: var(--amber); }
.lvl button[data-lvl="know"][aria-checked="true"] { color: var(--green); }

.stepper { display: inline-flex; align-items: center; gap: 2px; padding: 3px; border-radius: 99px; box-shadow: inset 0 0 0 1px var(--hair-2); }
.stepper button {
  appearance: none; border: 0; background: transparent; cursor: pointer; width: 28px; height: 28px; border-radius: 50%;
  font-size: 17px; line-height: 1; color: var(--ink-2);
  transition: background var(--duration-fast) var(--ease-smooth-out), transform var(--duration-fast) var(--heavy);
}
.stepper button:hover { background: var(--hair); color: var(--ink); }
.stepper button:active { transform: scale(0.88); }
.stepper .num { min-width: 46px; text-align: center; font-size: 13.5px; font-weight: 600; }
.icon-btn.sm { width: 32px; height: 32px; }
.icon-btn.sm svg { width: 14px; height: 14px; }
.bi [data-b="exp"] svg { transition: transform var(--duration-fast) var(--ease-smooth-out); }
.bi [data-b="exp"][aria-expanded="true"] svg { transform: scaleY(-1); }

.bi-more { padding: 4px 14px 14px 42px; display: grid; gap: 10px; animation: panel-in 300ms var(--ease-smooth-out) both; }
.tp-head { display: flex; align-items: center; gap: 12px; font-size: 13px; }
.link-btn { appearance: none; border: 0; background: none; padding: 0; color: var(--pen); font-size: 13px; font-weight: 600; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; justify-self: start; }
.tp-list, .ct-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.tp-list label { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 10px; align-items: start; padding: 7px 6px; border-radius: 10px; cursor: pointer; }
.tp-list label:hover { background: var(--hair); }
.tp-list input { position: absolute; opacity: 0; pointer-events: none; }
.tp-list b { font-weight: 500; font-size: 14px; display: block; }
.ex { display: block; font: 12px/1.5 var(--mono); color: var(--ink-3); overflow-wrap: anywhere; }
.cb {
  width: 20px; height: 20px; border-radius: 6px; margin-top: 1px; display: grid; place-items: center;
  box-shadow: inset 0 0 0 1.5px var(--hair-2); background: var(--card);
  transition: background var(--check-box) var(--check-ease), box-shadow var(--check-box) var(--check-ease);
}
.cb svg { width: 12px; height: 12px; fill: none; stroke: #fff; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.cb path { stroke-dasharray: 12; stroke-dashoffset: 12; transition: stroke-dashoffset var(--check-uncheck) var(--check-ease); }
.tp-list input:checked + .cb { background: var(--pen); box-shadow: none; }
.tp-list input:checked + .cb path { stroke-dashoffset: 0; transition: stroke-dashoffset var(--check-draw) var(--check-ease); }
.tp-list input:focus-visible + .cb { outline: 2px solid var(--pen); outline-offset: 2px; }
.tp-list input:not(:checked) ~ span b { color: var(--ink-3); text-decoration: line-through; text-decoration-color: var(--hair-2); }
.ct { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 6px 6px 6px 10px; border-radius: 10px; background: var(--paper); }
.ct b { font-weight: 500; font-size: 14px; }
.ct-add { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr) auto; gap: 8px; }
.ct-add .input { min-height: 40px; padding: 8px 12px; font-size: 14.5px; }

.add-block {
  appearance: none; cursor: pointer; width: 100%; margin-top: 14px; padding: 14px; border-radius: 20px;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  border: 1.5px dashed var(--hair-2); background: transparent; color: var(--ink-2); font-size: 14.5px; font-weight: 500;
  transition: background var(--duration-fast) var(--ease-smooth-out), color var(--duration-fast) var(--ease-smooth-out), transform var(--duration-fast) var(--heavy);
}
.add-block:hover { background: var(--shell); color: var(--ink); }
.add-block:active { transform: scale(0.99); }

.final-ed { margin-top: 18px; }
.final-ed .core { display: grid; gap: 12px; }
.final-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; font-size: 14.5px; }
.seg.mini label { padding: 6px 13px; font-size: 13.5px; }

.tray { margin-top: 22px; padding: 14px; border-radius: var(--r-outer); border: 1.5px dashed var(--hair-2); }
.tray-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px 14px; padding: 2px 4px 12px; }
.tray-head .muted { font-size: 13px; }
.in-tray { background: transparent; box-shadow: inset 0 0 0 1px var(--hair-2); }
.in-tray .bi-row { grid-template-columns: auto 58px minmax(0, 1fr) auto; }
.in-tray .no { color: var(--ink-3); }

/* Перетаскивание */
.dnd-ph { border-radius: 18px; background: var(--pen-soft); box-shadow: inset 0 0 0 1.5px var(--pen); opacity: 0.85; }
.dnd-ph.block { border-radius: var(--r-outer); }
.dragging {
  pointer-events: none; will-change: transform;
  box-shadow: 0 0 0 1px var(--hair-2), 0 30px 60px -20px rgba(21, 23, 29, 0.45) !important;
  transition: none !important;
}
.bb.dragging { background: var(--paper-2); }

/* Боковая панель */
.side-core { display: grid; gap: 12px; }
.meter { display: grid; gap: 6px; }
.meter .legend b { color: var(--ink); font-weight: 600; }
.side-facts { margin: 0; font-size: 12.5px; }
.chk { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.chk li { display: grid; grid-template-columns: 10px minmax(0, 1fr); gap: 10px; font-size: 13.5px; line-height: 1.45; color: var(--ink-2); }
.chk i { width: 8px; height: 8px; border-radius: 50%; margin-top: 6px; }
.chk-ok i { background: var(--green); }
.chk-warn i { background: var(--amber); }
.chk-bad i { background: var(--red); }
.chk-bad span { color: var(--ink); }
.chk-info i { background: var(--ink-3); }
.ctx-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; font-size: 13.5px; }
.ctx-list li { display: flex; justify-content: space-between; gap: 10px; }
.ctx-list span { color: var(--ink-3); }
.ctx-list b { font-weight: 600; text-align: right; }
.cx { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.cx .input { min-height: 40px; padding: 8px 12px; font-size: 14.5px; }
.cx .field > span { font-size: 12px; }
.why { border-radius: 16px; background: var(--pen-soft); padding: 10px 14px; }
.why summary { cursor: pointer; font-weight: 600; font-size: 14px; color: var(--pen); }
.why ul { margin: 10px 0 2px; padding-left: 18px; display: grid; gap: 6px; font-size: 13.5px; color: var(--ink-2); }
.side-actions { display: grid; gap: 8px; padding-top: 4px; }
.side-actions .btn { justify-content: space-between; }

.bl-dock { display: none; }

/* Раздел «Конструктор» */
.base-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 10px; }
.base-card { display: grid; gap: 6px; position: relative; min-height: 120px; align-content: start; }
.base-card .go { position: absolute; right: 18px; bottom: 16px; width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; background: var(--hair); transition: transform var(--duration-slow) var(--heavy); }
.base-card .go svg { width: 15px; height: 15px; }
.s-card:hover .base-card .go { transform: translate(2px, -2px); background: var(--ink); color: var(--card); }
.tpl-card { display: grid; gap: 10px; height: 100%; align-content: start; }

@media (max-width: 1060px) {
  .bl-grid { grid-template-columns: minmax(0, 1fr); }
  .bl-side { position: static; max-height: none; scroll-margin-top: 90px; }
  .bl-dock {
    display: block; position: fixed; left: 0; right: 0; bottom: 0; z-index: 30;
    padding: 10px max(16px, env(safe-area-inset-right, 0px)) calc(10px + env(safe-area-inset-bottom, 0px)) max(16px, env(safe-area-inset-left, 0px));
    background: var(--glass); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
    box-shadow: 0 -1px 0 var(--hair), 0 -12px 30px -20px rgba(0, 0, 0, 0.3);
  }
  .dock-in { max-width: 1180px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
  .dock-stat { appearance: none; border: 0; background: none; cursor: pointer; display: flex; align-items: baseline; gap: 12px; font-size: 15px; color: var(--ink); padding: 6px 0; }
  .dock-link { font-size: 12.5px; color: var(--pen); font-weight: 600; }
  .dock-stat.bad b:first-child { color: var(--red); }
  .bl { padding-bottom: 70px; }
  .base-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 720px) {
  .bi-row { grid-template-columns: auto 46px minmax(0, 1fr) auto auto; padding-right: 6px; }
  .bi-row .lvl { grid-column: 1 / -1; grid-row: 2; justify-self: start; margin-left: 6px; }
  .bi-row .stepper { grid-column: 1 / -1; grid-row: 2; justify-self: end; }
  .lvl button { padding: 5px 7px; font-size: 11.5px; }
  .stepper button { width: 26px; height: 26px; }
  .stepper .num { min-width: 40px; font-size: 13px; }
  .bi .no { font-size: 15px; }
  .bb-head .bb-title { flex-basis: 100%; order: 3; font-size: 16px; }
  .bb-head .bb-meta { margin-left: auto; }
  .bi-more { padding-left: 14px; }
  .ct-add { grid-template-columns: 1fr; }
  .cx { grid-template-columns: 1fr; }
  .in-tray .bi-row { grid-template-columns: auto 46px minmax(0, 1fr) auto; }
  .in-tray .btn { padding: 6px 6px 6px 10px; font-size: 0; gap: 0; }
  .in-tray .btn .ico { margin: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 1ms !important; animation-iteration-count: 1 !important; transition-duration: 1ms !important; transition-delay: 0ms !important; scroll-behavior: auto !important; }
  .js .reveal { opacity: 1; transform: none; filter: none; }
}

/* ================= База задач ================= */
.link-pill svg { width: 13px; height: 13px; }
@media (max-width: 640px) {
  .island a.nav { padding: 8px 10px; font-size: 13.5px; }
}
@media (max-width: 400px) {
  .island { gap: 2px; padding: 5px; }
  .island a.nav { padding: 7px 8px; font-size: 13px; }
  .island .brand { padding: 2px; }
  .brand-mark { width: 30px; height: 30px; }
}

/* Вход по ключу */
.zd-lock { display: grid; gap: 18px; }
.zd-lock > .shell { max-width: 560px; }
.lock-dot { background: var(--amber) !important; box-shadow: 0 0 0 3px var(--amber-soft); }
.zd-lock .input.shake { box-shadow: inset 0 0 0 2px var(--red); }

/* Полка тетрадей */
.zd-group { margin-bottom: 34px; }
.zd-group .base-grid { margin-top: 16px; }
.zd-book { gap: 8px; min-height: 190px; padding-bottom: 60px; }
.zd-book-no { font: 700 34px/1 var(--display); letter-spacing: -0.04em; color: var(--pen); }
.zd-book-meta { font-size: 13.5px; }
.zd-book-subs { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.zd-book-subs .chip { font-size: 12px; padding: 3px 9px; }
.zd-pilot { margin-top: 8px; }

/* Панель фильтров */
.zd-bar { position: static; }
.zd-bar-in { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.zd-search {
  flex: 1 1 220px; min-width: 0; display: flex; align-items: center; gap: 8px;
  height: 46px; padding: 0 16px; border-radius: 48px;
  background: var(--glass); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  box-shadow: inset 0 0 0 1px var(--hair), var(--lift);
  transition: box-shadow var(--duration-fast) var(--ease-smooth-out);
}
.zd-search:focus-within { box-shadow: inset 0 0 0 2px var(--pen), var(--lift); }
.zd-search svg { width: 16px; height: 16px; color: var(--ink-3); flex: none; }
.zd-search input { flex: 1; min-width: 0; border: 0; background: transparent; outline: none; font-size: 15px; }
.zd-search input::-webkit-search-cancel-button { cursor: pointer; }
.zd-star {
  appearance: none; border: 0; cursor: pointer; height: 46px; padding: 0 18px; border-radius: 48px;
  font-size: 14.5px; font-weight: 500; color: var(--ink-2); white-space: nowrap;
  background: var(--glass); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  box-shadow: inset 0 0 0 1px var(--hair), var(--lift);
  transition: background var(--duration-fast) var(--ease-smooth-out), color var(--duration-fast) var(--ease-smooth-out), transform var(--duration-fast) var(--heavy);
}
.zd-star:active { transform: scale(0.96); }
.zd-star[aria-pressed="true"] { background: var(--amber-soft); color: var(--amber); box-shadow: inset 0 0 0 1px var(--amber); }
.zd-subs { margin: 2px 0 6px; }
.zd-subs label { font-size: 13.5px; padding: 7px 13px; }
.zd-count { font-size: 13.5px; margin: 6px 4px 12px; min-height: 1em; }

/* Карточки задач */
.zd-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; align-items: start; }
@media (max-width: 880px) { .zd-grid { grid-template-columns: minmax(0, 1fr); } }
.zd-card .core { display: grid; gap: 14px; padding: 16px; }
.zd-card { transition: transform var(--duration-slow) var(--heavy); }
.zd-card[data-picked="true"] { box-shadow: inset 0 0 0 1.5px var(--pen); background: var(--pen-soft); }
.zd-in { animation: panel-in 380ms var(--ease-smooth-out) both; }
.zd-head { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 8px; }
.zd-no { font: 700 22px/1 var(--display); letter-spacing: -0.03em; color: var(--pen); margin-right: 4px; font-variant-numeric: tabular-nums; }
.zd-sub { font-size: 13px; color: var(--ink-3); margin-left: auto; text-align: right; }
.zd-sheet {
  border-radius: 16px; background: #fff; padding: 10px;
  box-shadow: inset 0 0 0 1px rgba(21, 23, 29, 0.07);
}
.zd-sheet img { display: block; width: 100%; height: auto; border-radius: 6px; }
.zd-sheet img + img { margin-top: 12px; padding-top: 12px; border-top: 1px dashed rgba(21, 23, 29, 0.12); }
.zd-sol { margin-top: 2px; background: #fffdf9; }
@media (prefers-color-scheme: dark) {
  .zd-sheet { background: #f3f3ee; }
  .zd-sheet img { filter: brightness(0.95); }
  .zd-sol { background: #f3f1ea; }
}
.zd-acts { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; }
.zd-acts [data-zd="sol"] .ico svg { transition: transform var(--acc-chevron) var(--acc-ease); }
.zd-card[data-open="true"] [data-zd="sol"] .ico svg { transform: scaleY(-1); }
.zd-pick {
  appearance: none; border: 0; cursor: pointer; display: inline-flex; align-items: center; gap: 9px;
  min-height: 36px; padding: 6px 14px 6px 8px; border-radius: 999px;
  font-size: 13.5px; font-weight: 600; color: var(--ink-2); background: var(--hair);
  transition: background var(--duration-fast) var(--ease-smooth-out), color var(--duration-fast) var(--ease-smooth-out), transform var(--duration-fast) var(--heavy);
}
.zd-pick:active { transform: scale(0.95); }
.zd-pick .cb { width: 20px; height: 20px; margin: 0; border-radius: 6px; display: grid; place-items: center; background: var(--card); box-shadow: inset 0 0 0 1.5px var(--hair-2); transition: background var(--check-box) var(--check-ease), box-shadow var(--check-box) var(--check-ease); }
.zd-pick .cb svg { width: 12px; height: 12px; fill: none; stroke: #fff; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.zd-pick .cb path { stroke-dasharray: 15; stroke-dashoffset: 15; transition: stroke-dashoffset var(--check-uncheck) var(--check-ease); }
.zd-pick[aria-pressed="true"] { background: var(--pen); color: #fff; }
.zd-pick[aria-pressed="true"] .cb { background: rgba(255, 255, 255, 0.22); box-shadow: none; }
.zd-pick[aria-pressed="true"] .cb path { stroke-dashoffset: 0; transition: stroke-dashoffset var(--check-draw) var(--check-ease); }

/* Нижняя панель листа */
.zd-dock {
  position: fixed; left: 50%; bottom: calc(env(safe-area-inset-bottom, 0px) + 16px); z-index: 30;
  width: min(780px, calc(100vw - 24px));
  transform: translate(-50%, calc(100% + 40px)); opacity: 0;
  transition: transform var(--duration-very-slow) var(--heavy), opacity var(--duration-medium) var(--ease-smooth-out);
}
.zd-dock.is-open { transform: translate(-50%, 0); opacity: 1; }
.zd-dock-in {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 8px 8px 8px 20px; border-radius: 999px;
  background: var(--glass); backdrop-filter: blur(18px) saturate(1.4); -webkit-backdrop-filter: blur(18px) saturate(1.4);
  box-shadow: var(--lift), inset 0 0 0 1px var(--hair);
}
.zd-dock.has-items .zd-dock-in { box-shadow: var(--lift), inset 0 0 0 1.5px var(--pen); }
.zd-dock-stat { font-size: 14.5px; color: var(--ink-2); white-space: nowrap; }
.zd-dock-stat b { font: 700 18px/1 var(--display); color: var(--ink); letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.zd-dock-acts, .zd-dock-pdf { display: flex; gap: 6px; }
.zd-dock-acts { margin-left: auto; }
body:has(.zd-dock) .author { padding-bottom: calc(110px + env(safe-area-inset-bottom, 0px)); }
@media (max-width: 560px) {
  .zd-dock-in { flex-wrap: wrap; padding: 8px 8px 8px 14px; border-radius: 26px; row-gap: 8px; }
  .zd-dock-pdf { flex: 1 1 100%; display: grid; grid-template-columns: 1fr 1fr; }
  .zd-dock-pdf .btn { justify-content: center; }
  .zd-dock-stat { font-size: 13px; }
  .zd-dock-acts .btn { padding-left: 12px; font-size: 13px; }
  .zd-dock-acts .btn .ico { display: none; }
  .zd-dock-acts .btn:has(.ico) { padding-right: 12px; }
  .zd-card .core { padding: 12px; }
  .zd-sheet { padding: 6px; border-radius: 12px; }
}
/* Тосты над нижней панелью листа */
body:has(.zd-dock.is-open) .toast-root { bottom: calc(env(safe-area-inset-bottom, 0px) + 92px); }
@media (max-width: 560px) {
  body:has(.zd-dock.is-open) .toast-root { bottom: calc(env(safe-area-inset-bottom, 0px) + 140px); }
}

/* Полка тетрадей: вкладки программ и поиск */
.zd-shelf-bar { margin-bottom: 26px; }
.zd-shelf-bar .tabs-scroll { transition: opacity var(--duration-fast) var(--ease-smooth-out); }
.zd-shelf-bar .tabs-scroll.is-muted { opacity: 0.45; }
.zd-group .block-head .lbl { white-space: nowrap; }
.zd-book-subs .chip { max-width: 100%; overflow: hidden; text-overflow: ellipsis; }
.zd-own { justify-self: start; margin-top: 2px; }