/* Design system (#507). One set of tokens for type, space, radius, depth and
   motion, used by every rule below. Loaded after sefirot.css and names no
   colors: every paint is a token from sefirot.css or a color-mix of tokens.
   Mobile first; logical properties so RTL needs no mirrored rules. */
:root {
  --font: "Rubik", "Heebo", "Assistant", "Segoe UI", "Arial Hebrew", system-ui, sans-serif;
  --t-xs: .8125rem; --t-sm: .9375rem; --t-md: 1.0625rem; --t-lg: 1.375rem; --t-xl: clamp(1.9rem, 7vw, 3rem);
  --s-1: 4px; --s-2: 8px; --s-3: 12px; --s-4: 16px; --s-5: 24px; --s-6: 32px; /* a 4px grid */
  --r-sm: 12px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-pill: 999px;
  /* depth: hairline + soft ambient, never a hard 3D edge */
  --e-1: 0 1px 2px color-mix(in srgb, var(--ink) 6%, transparent);
  --e-2: 0 1px 2px color-mix(in srgb, var(--ink) 5%, transparent), 0 8px 24px color-mix(in srgb, var(--ink) 7%, transparent);
  --e-3: 0 2px 6px color-mix(in srgb, var(--ink) 6%, transparent), 0 18px 44px color-mix(in srgb, var(--ink) 12%, transparent);
  /* the one action colour on a screen (#88); a panel may swap it below */
  --accent: var(--confidence);
  --accent-soft: color-mix(in srgb, var(--accent) 9%, var(--card));
  --surface-2: color-mix(in srgb, var(--ink) 3%, var(--card));
  --ease: cubic-bezier(.2, .8, .2, 1);
  --ease-pop: cubic-bezier(.34, 1.4, .64, 1);
  --d-1: .14s; --d-2: .26s; --d-3: .45s;
}

body {
  font-family: var(--font);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Header: a quiet label, then one big headline with room to breathe. */
header { margin-block-end: var(--s-5); }
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  padding: var(--s-1) var(--s-3);
  border-radius: var(--r-pill);
  background: var(--accent-soft);
  color: var(--accent);
  font-size: var(--t-xs);
  font-weight: 700;
  letter-spacing: .06em;
}
h1 { font-size: var(--t-xl); line-height: 1.1; font-weight: 800; letter-spacing: -.02em; margin-block: var(--s-3) var(--s-2); }
h2 { font-size: var(--t-lg); line-height: 1.25; font-weight: 800; letter-spacing: -.01em; }
h3 { line-height: 1.3; font-weight: 700; }
p { line-height: 1.6; }

/* Panels: the guided lessons are the "focus" sphere, so their action is
   raspberry; every other screen acts in violet. One accent per screen. */
#lessons { --accent: var(--focus); --confidence: var(--focus); --purple: var(--focus); }

/* Cards: flat surfaces lifted by a soft shadow and a hairline. */
.card,
.who-bar,
.metro-bar,
.first-run,
.rama-card,
.lesson-card {
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
}
.card {
  background: var(--card);
  box-shadow: var(--e-2);
}
.who-bar, .metro-bar { box-shadow: var(--e-1); }
.panel.active { animation: mm-rise var(--d-3) var(--ease) both; }
@keyframes mm-rise {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}

/* Buttons: flat, solid, a gentle press. */
button, .primary, .mm-contact-links a {
  border-radius: var(--r-md);
  font-weight: 700;
  transition: transform var(--d-1) var(--ease), box-shadow var(--d-2) var(--ease), background-color var(--d-2) var(--ease);
}
.primary { background: var(--accent); font-size: var(--t-md); padding-block: var(--s-4); }
button:active:not(:disabled) { transform: scale(.97); }
button:disabled { opacity: .5; cursor: default; }

/* Tabs: a segmented control on one tinted track. */
.tabs { gap: var(--s-2); padding: var(--s-1); border-radius: var(--r-pill); background: var(--surface-2); border: 1px solid var(--line); }
.tab { border: 0; border-radius: var(--r-pill); background: transparent; color: var(--muted); padding-inline: var(--s-4); }
.tab:hover:not(.active) { color: var(--ink); }
.tab.active { background: var(--card); color: var(--accent); box-shadow: var(--e-2); }

/* Level picker */
.level {
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: var(--card);
  box-shadow: var(--e-1);
  transition: transform var(--d-2) var(--ease), border-color var(--d-2) var(--ease), box-shadow var(--d-2) var(--ease);
}
.level:hover { transform: translateY(-2px); box-shadow: var(--e-2); }
.level.selected {
  border-color: var(--accent);
  background: var(--accent-soft);
  box-shadow: 0 0 0 1px var(--accent), var(--e-2);
}

/* Exercise screen */
.topline { font-weight: 600; font-size: var(--t-sm); }
.tag { background: var(--surface-2); color: var(--muted); padding: var(--s-1) var(--s-3); border: 1px solid var(--line); }
/* A live bar: the fill eases forward and a sheen runs across it. */
.progress { height: 10px; border-radius: var(--r-pill); }
.progress span {
  position: relative;
  border-radius: var(--r-pill);
  background: var(--accent);
  transition: width var(--d-3) var(--ease-pop);
  overflow: hidden;
}
.progress span::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--card) 45%, transparent), transparent);
  animation: mm-sheen 2.4s var(--ease) infinite;
}
@keyframes mm-sheen {
  from { transform: translateX(100%); }
  to { transform: translateX(-100%); }
}
.prompt { font-weight: 800; letter-spacing: -.01em; line-height: 1.35; padding: var(--s-5); border-radius: var(--r-lg); background: var(--surface-2); }
input, select {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--card);
  transition: border-color var(--d-2) var(--ease), box-shadow var(--d-2) var(--ease);
}
.answer-row input { font-size: var(--t-lg); font-weight: 700; }
input:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 16%, transparent);
}
.choice {
  border-radius: var(--r-lg);
  background: var(--card);
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: var(--e-1);
  font-weight: 800;
}
.choice:hover:not(:disabled) { border-color: var(--accent); box-shadow: var(--e-2); }
.choice.picked-good { color: var(--card); border-color: var(--good); animation: mm-pop var(--d-3) var(--ease-pop); }
.choice.picked-bad { color: var(--card); border-color: var(--bad); animation: mm-shake .35s var(--ease); }

/* Feedback: a correct answer pops in and a ring of light spreads from it. */
.feedback { border-radius: var(--r-md); font-size: var(--t-md); font-weight: 600; }
.feedback.good {
  border: 1px solid color-mix(in srgb, var(--good) 30%, var(--card));
  animation: mm-pop var(--d-3) var(--ease-pop), mm-ring .9s var(--ease) .1s;
}
.feedback.bad {
  border: 1px solid color-mix(in srgb, var(--bad) 25%, var(--card));
  animation: mm-shake .35s var(--ease);
}
@keyframes mm-pop {
  0% { transform: scale(.94); opacity: 0; }
  60% { transform: scale(1.02); opacity: 1; }
  100% { transform: scale(1); }
}
@keyframes mm-shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}
@keyframes mm-ring {
  from { box-shadow: 0 0 0 0 color-mix(in srgb, var(--good) 35%, transparent); }
  to { box-shadow: 0 0 0 14px color-mix(in srgb, var(--good) 0%, transparent); }
}

/* Progress / rewards */
.stat, .result { border-radius: var(--r-md); background: var(--surface-2); border: 1px solid var(--line); }
.stat strong { color: var(--ink); font-size: 2rem; font-weight: 800; letter-spacing: -.02em; }
.cert { border-radius: var(--r-lg); background: var(--card); }

/* More-pages cards */
.navcard {
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  box-shadow: var(--e-1);
  transition: transform var(--d-2) var(--ease), box-shadow var(--d-2) var(--ease), border-color var(--d-2) var(--ease);
}
.navcard:hover, .navcard:focus-visible { transform: translateY(-2px); box-shadow: var(--e-3); }

/* Guided lesson: cards and a stepper on the same surface language. */
.lesson-card {
  background: var(--card);
  box-shadow: var(--e-1);
  transition: transform var(--d-2) var(--ease), box-shadow var(--d-2) var(--ease), border-color var(--d-2) var(--ease);
}
.lesson-card:hover, .lesson-card:focus-visible { border-color: var(--accent); box-shadow: var(--e-3); }
.step-pill { border-radius: var(--r-pill); background: var(--surface-2); border: 1px solid var(--line); color: var(--muted); }
.step-pill.active { background: var(--accent); border-color: var(--accent); color: var(--card); }
.step-pill.done { background: color-mix(in srgb, var(--good) 10%, var(--card)); border-color: color-mix(in srgb, var(--good) 35%, var(--card)); }

/* Teacher / class dashboard */
.report-table, .class-board {
  border-collapse: separate;
  border-spacing: 0;
  border: 2px solid var(--line);
  border-radius: var(--r-md);
  background: var(--card);
}
.report-table th {
  background: color-mix(in srgb, var(--confidence) 8%, var(--card));
  color: var(--ink);
  font-weight: 800;
  padding: 10px 8px;
}
.report-table tbody tr:nth-child(even) td { background: color-mix(in srgb, var(--confidence) 4%, var(--card)); }
.report-table tbody tr:hover td { background: color-mix(in srgb, var(--yellow) 16%, var(--card)); }
.report-table td { padding: 10px 8px; }
.class-timer {
  display: inline-block;
  padding: 8px 22px;
  border-radius: 99px;
  background: color-mix(in srgb, var(--confidence) 10%, var(--card));
}
.class-kids button { border-radius: 99px; }

/* Tablet and up: more air */
@media (min-width: 681px) {
  .wrap { padding-block-start: 36px; }
  .prompt { padding: 24px 28px; }
}
/* Phone: thumb-sized controls, prompt first */
@media (max-width: 480px) {
  .card { border-radius: var(--r-md); }
  .tab, .secondary { padding-inline: 12px; font-size: .95rem; }
  .choice { min-height: 72px; }
  .prompt { padding: 14px 16px; }
}

/* #504: a button's colour says what we want the child to do next (design
   agent, #88). Accent = go on; green = you earned it, go on; quiet ink =
   step back. Raspberry only marks where the keyboard is. Still no literals. */
.primary,
.answer-row button {
  box-shadow: 0 1px 2px color-mix(in srgb, var(--accent) 30%, transparent), 0 6px 16px color-mix(in srgb, var(--accent) 22%, transparent);
}
.answer-row button { background: var(--accent); }
.primary:hover:not(:disabled),
.answer-row button:hover:not(:disabled) {
  background: color-mix(in srgb, var(--accent) 88%, var(--ink));
}
/* «הבא» right after a correct answer turns green: the reward is moving on. */
.feedback.good:not(.hidden) ~ .primary:not(.hidden) {
  background: var(--good);
  box-shadow: 0 6px 16px color-mix(in srgb, var(--good) 25%, transparent);
}
.feedback:not(.hidden) ~ .primary:not(.hidden) { animation: mm-rise var(--d-2) var(--ease) both; }

/* Stepping back is never the loud choice. Toggles that are on take the accent. */
.secondary {
  border-radius: var(--r-pill);
  background: var(--card);
  color: var(--ink);
  border: 1px solid var(--line);
  padding-inline: var(--s-4);
}
.secondary:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.secondary.selected,
.secondary.primary,
.secondary[aria-pressed="true"] {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--confidence);
}

/* Focus: a raspberry ring with a card-coloured gap, visible on violet too. */
:focus-visible,
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
summary:focus-visible {
  outline-color: var(--focus);
  outline-offset: 3px;
}
.primary:focus-visible,
.tab.active:focus-visible { box-shadow: 0 0 0 3px var(--card), var(--e-2); }

/* Numbers that tick should not make the line jump. */
.topline,
.stat strong,
.class-timer,
.mm-plan-pace { font-variant-numeric: tabular-nums; }

/* Tags read as small labels, not as buttons. */
.tag {
  border-radius: var(--r-pill);
  font-size: var(--t-xs);
  font-weight: 600;
}

/* More-pages cards point the way they open (RTL: forward is ←). */
.navcard strong::after {
  content: "←" / "";
  display: inline-block;
  margin-inline-start: 6px;
  transition: transform .18s var(--ease-pop);
}
.navcard:hover strong::after,
.navcard:focus-visible strong::after { transform: translateX(-4px); }
.navcard:focus-visible { box-shadow: 0 0 0 3px var(--card), 0 0 0 6px var(--focus); }

/* Phone first: the tab row scrolls sideways in one line instead of stacking
   into three, and the edges fade so the child sees there is more. */
@media (max-width: 680px) {
  .tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
    margin-inline: -18px;
    padding: 8px 18px 10px;
    scroll-padding-inline: 18px;
    -webkit-mask-image: linear-gradient(to left, transparent, var(--ink) 18px, var(--ink) calc(100% - 18px), transparent);
    mask-image: linear-gradient(to left, transparent, var(--ink) 18px, var(--ink) calc(100% - 18px), transparent);
  }
  .tabs::-webkit-scrollbar { display: none; }
  .tab { flex: none; scroll-snap-align: start; }
  .card { padding: 18px 16px; }
}
/* 480px page padding is 12px. A −18px bleed is wider than a 375px phone. */
@media (max-width: 480px) {
  .tabs { margin-inline: -12px; padding-inline: 12px; scroll-padding-inline: 12px; }
}
/* Fingers, not mice: every control at least 48px tall. */
@media (pointer: coarse) {
  button, .primary, .tab, .secondary, input, select { min-height: 48px; }
}

/* index.html's reduced-motion rule uses «*», which does not reach the
   pseudo-element sheen; stop it and every lift here too. */
@media (prefers-reduced-motion: reduce) {
  .progress span::after { animation: none; display: none; }
  .feedback.good, .feedback.bad, .choice.picked-good, .choice.picked-bad { animation: none; }
  button:active:not(:disabled), .level:hover, .navcard:hover, .navcard:focus-visible,
  .navcard:hover strong::after, .navcard:focus-visible strong::after { transform: none; }
}

@media print {
  body { background: none; font-family: var(--font); }
  .progress span::after { display: none; }
  .report-table, .class-board { border-radius: 0; }
}