/* =====================================================================
   Numernabis · nb-public.css
   Strony publiczne: główna, pakiety, korepetycje. Wymaga nb-core.css.
   Język: biel i szarość #f5f5f7 jak u Apple, jedna rama produktu z zorzą,
   duża typografia, pigułki, kafelki bento 28 px.
   ===================================================================== */

body.public-page { background: var(--nb-bg-2); }
body.nav-open { overflow: hidden; }

/* ---------- Nagłówek: szkło ---------- */
.site-header {
  position: sticky; top: 0; z-index: var(--nb-z-header);
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 24px;
  height: 60px; padding: 0 max(24px, calc((100% - 1320px) / 2 + 24px));
  background: rgba(255, 255, 255, 0.7);
  -webkit-backdrop-filter: var(--nb-glass-blur); backdrop-filter: var(--nb-glass-blur);
  border-bottom: 1px solid transparent;
  transition: border-color var(--nb-base) var(--nb-ease), background var(--nb-base) var(--nb-ease);
}
.site-header.scrolled { border-bottom-color: var(--nb-line); background: rgba(255, 255, 255, 0.82); }
.site-header .logo { display: inline-flex; align-items: center; gap: 10px; font-size: 1.15rem; width: max-content; }
.site-header .logo img { width: 30px; height: 30px; border-radius: 8px; }
.main-nav { display: flex; align-items: center; gap: 4px; justify-self: center; }
.main-nav a { display: inline-flex; align-items: center; min-height: 36px; padding: 0 14px; border-radius: var(--nb-r-pill); font-size: 0.9rem; font-weight: 500; color: var(--nb-ink-2); transition: background var(--nb-fast) var(--nb-ease), color var(--nb-fast) var(--nb-ease); }
.main-nav a:hover { color: var(--nb-ink); background: var(--nb-surface-2); }
.main-nav a.active { color: var(--nb-ink); font-weight: 600; }
.public-header-actions { display: flex; align-items: center; justify-content: flex-end; gap: 10px; }
.public-account { display: flex; align-items: center; gap: 10px; }
.public-login-button, .public-panel-button { display: inline-flex; align-items: center; gap: 8px; min-height: 38px; padding: 0 16px; border-radius: var(--nb-r-pill); font-size: 0.875rem; font-weight: 600; white-space: nowrap; transition: background var(--nb-fast) var(--nb-ease), color var(--nb-fast) var(--nb-ease), transform var(--nb-fast) var(--nb-ease); }
.public-login-button { background: var(--nb-ink); color: #fff; }
.public-login-button:hover { background: var(--nb-navy-2); }
.public-login-button:active, .public-panel-button:active { transform: scale(0.97); }
.public-login-button svg, .public-panel-button svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.public-panel-button { background: var(--nb-accent); color: #fff; }
.public-panel-button:hover { background: var(--nb-accent-2); }
.public-account-chip { position: relative; }
.public-user-trigger { display: inline-flex; align-items: center; gap: 10px; min-height: 38px; padding: 3px 10px 3px 3px; border-radius: var(--nb-r-pill); border: 1px solid var(--nb-line); background: var(--nb-surface); transition: background var(--nb-fast) var(--nb-ease); }
.public-user-trigger:hover { background: var(--nb-surface-2); }
.public-user-trigger svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; color: var(--nb-ink-3); }
.public-account-avatar { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--nb-accent-soft); color: var(--nb-accent-ink); font-size: 0.72rem; font-weight: 700; overflow: hidden; }
.public-account-avatar img { width: 100%; height: 100%; object-fit: cover; }
.public-account-copy { display: grid; line-height: 1.15; text-align: left; }
.public-account-copy small { font-size: 0.75rem; font-weight: 500; color: var(--nb-ink-4); }
.public-account-copy strong { font-size: 0.82rem; font-weight: 600; max-width: 120px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.public-account-menu { position: absolute; right: 0; top: calc(100% + 8px); min-width: 180px; padding: 6px; border-radius: var(--nb-r); background: var(--nb-surface); box-shadow: var(--nb-shadow-lg); border: 1px solid var(--nb-line); z-index: var(--nb-z-popover); }
.public-account-menu button { display: flex; align-items: center; gap: 10px; width: 100%; min-height: 40px; padding: 0 12px; border-radius: var(--nb-r-sm); font-size: 0.875rem; font-weight: 500; color: var(--nb-ink); }
.public-account-menu button:hover { background: var(--nb-surface-2); }
.public-account-menu button svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.menu-button { display: none; position: relative; width: 40px; height: 40px; border-radius: var(--nb-r-pill); }
.menu-button:hover { background: var(--nb-surface-2); }
.menu-button span { position: absolute; left: 11px; width: 18px; height: 2px; border-radius: 2px; background: var(--nb-ink); transition: transform var(--nb-base) var(--nb-ease), opacity var(--nb-base) var(--nb-ease), top var(--nb-base) var(--nb-ease); }
.menu-button span:nth-child(1) { top: 13px; }
.menu-button span:nth-child(2) { top: 19px; }
.menu-button span:nth-child(3) { top: 25px; }
.menu-button[aria-expanded="true"] span:nth-child(1) { top: 19px; transform: rotate(45deg); }
.menu-button[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-button[aria-expanded="true"] span:nth-child(3) { top: 19px; transform: rotate(-45deg); }

/* ---------- Sekcje ---------- */
.section { padding: 112px 0; }
.section-tight { padding: 56px 0; }
.section-grey { background: var(--nb-surface-2); }
.section-heading { text-align: center; max-width: 760px; margin: 0 auto 56px; }
.section-heading h2 { margin-bottom: 16px; }
.section-heading p { font-size: 1.25rem; line-height: 1.5; color: var(--nb-ink-2); text-wrap: pretty; }
.section-heading.left { text-align: left; margin-left: 0; }
.text-link { display: inline-flex; align-items: center; gap: 6px; color: var(--nb-accent-ink); font-weight: 600; font-size: 1rem; }
.text-link::after { content: "›"; font-size: 1.2em; line-height: 1; transition: transform var(--nb-fast) var(--nb-ease); }
.text-link:hover::after { transform: translateX(3px); }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 88px 0 0; text-align: center; overflow: clip; }
.hero-content { max-width: 880px; margin: 0 auto; }
.hero-content h1 { font-size: clamp(3rem, 7.2vw, 6rem); letter-spacing: -0.05em; line-height: 0.98; margin-bottom: 24px; }
.hero-content .nb-lead { font-size: clamp(1.125rem, 1.8vw, 1.4rem); max-width: 40ch; margin: 0 auto 36px; color: var(--nb-ink-2); }
.hero-actions { display: flex; justify-content: center; align-items: center; gap: 22px; flex-wrap: wrap; }

/* Rama produktu z zorzą: jedyny "głośny" element strony */
.hero-stage { position: relative; margin: 72px auto 0; width: min(100% - 48px, 1180px); }
.hero-stage::before {
  content: ""; position: absolute; inset: -12% -8% -18%; z-index: 0; pointer-events: none;
  background: var(--nb-aurora-glow);
  filter: blur(48px); opacity: 0.85;
  animation: hero-glow 14s ease-in-out infinite alternate;
}
@keyframes hero-glow { from { transform: translate3d(-2%, 1%, 0) scale(1); } to { transform: translate3d(2%, -2%, 0) scale(1.05); } }
.hero-board {
  position: relative; z-index: 1;
  border-radius: var(--nb-r-xl); background: var(--nb-surface);
  box-shadow: 0 0 0 1px rgba(15, 22, 51, 0.08), var(--nb-shadow-xl);
  overflow: hidden; text-align: left;
}
.hero-board-bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 16px 12px 20px; border-bottom: 1px solid var(--nb-line); background: rgba(255, 255, 255, 0.85); }
.hero-board-bar > span { display: inline-flex; align-items: center; gap: 10px; font-size: 0.875rem; color: var(--nb-ink-3); }
.hero-board-bar > span strong { color: var(--nb-ink); font-weight: 600; }
.hero-board-dots { display: inline-flex; gap: 6px; margin-right: 6px; }
.hero-board-dots i { width: 10px; height: 10px; border-radius: 50%; background: var(--nb-surface-3); }
.hero-board-tools { display: flex; gap: 2px; padding: 3px; border-radius: var(--nb-r-pill); background: var(--nb-surface-2); }
.hero-board-tools button { display: grid; place-items: center; width: 34px; height: 34px; border-radius: var(--nb-r-pill); color: var(--nb-ink-3); transition: background var(--nb-fast) var(--nb-ease), color var(--nb-fast) var(--nb-ease); }
.hero-board-tools button svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.hero-board-tools button:hover { color: var(--nb-ink); }
.hero-board-tools button.active { background: var(--nb-surface); color: var(--nb-accent-ink); box-shadow: var(--nb-shadow-xs); }
.hero-board-canvas { position: relative; aspect-ratio: 16 / 8.6; background-color: #fff; background-image: var(--nb-grid); background-size: 24px 24px; cursor: crosshair; touch-action: none; }
/* Na dotyku pionowy gest musi przewijać stronę, inaczej płótno zjada scroll i blokuje wejście na resztę strony. Rysowanie zostaje dla gestów poziomych. */
@media (pointer: coarse) {
  .hero-board-canvas { touch-action: pan-y; }
}
.hero-board-canvas canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-board-hint { position: absolute; left: 20px; bottom: 18px; padding: 8px 14px; border-radius: var(--nb-r-pill); background: var(--nb-ink); color: #fff; font-size: 0.8125rem; font-weight: 500; pointer-events: none; transition: opacity var(--nb-base) var(--nb-ease), transform var(--nb-base) var(--nb-ease); }
.hero-board.touched .hero-board-hint { opacity: 0; transform: translateY(6px); }
.hero-assistant {
  position: absolute; right: 22px; bottom: 22px; width: min(360px, 48%);
  display: grid; grid-template-columns: auto 1fr; gap: 12px; align-items: start;
  padding: 14px 16px; border-radius: 20px;
  background: rgba(255, 255, 255, 0.86); -webkit-backdrop-filter: var(--nb-glass-blur); backdrop-filter: var(--nb-glass-blur);
  border: 1px solid rgba(255, 255, 255, 0.7); box-shadow: 0 0 0 1px rgba(15, 22, 51, 0.06), var(--nb-shadow);
  cursor: default;
}
.hero-assistant .nb-avatar { width: 30px; height: 30px; background: var(--nb-ink); color: #fff; font-size: 0.75rem; }
.hero-assistant p { font-size: 0.875rem; line-height: 1.45; color: var(--nb-ink-2); }
.hero-assistant p strong { color: var(--nb-ink); }
.hero-assistant small { display: block; margin-top: 6px; color: var(--nb-ink-4); font-size: 0.75rem; }

/* Sekwencja wejścia hero: jeden zorkiestrowany moment */
html.js-reveal .hero-content > * { opacity: 0; transform: translateY(14px); animation: hero-in 0.9s var(--nb-ease-out) forwards; }
html.js-reveal .hero-content > :nth-child(2) { animation-delay: 0.1s; }
html.js-reveal .hero-content > :nth-child(3) { animation-delay: 0.2s; }
html.js-reveal .hero-stage { opacity: 0; transform: translateY(28px) scale(0.985); animation: hero-in 1.1s var(--nb-ease-out) 0.28s forwards; }
html.js-reveal .hero-assistant { opacity: 0; transform: translateY(10px); animation: hero-in 0.7s var(--nb-ease-out) 1.4s forwards; }
@keyframes hero-in { to { opacity: 1; transform: none; } }

/* ---------- Pasek faktów: bez kart, tylko rytm ---------- */
.facts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 112px; padding: 36px 0; border-top: 1px solid var(--nb-line); border-bottom: 1px solid var(--nb-line); }
.facts > div { display: grid; gap: 4px; padding: 0 28px; border-left: 1px solid var(--nb-line); }
.facts > div:first-child { border-left: 0; padding-left: 0; }
.facts strong { font-family: var(--nb-font-display); font-size: 1.75rem; font-weight: 700; letter-spacing: -0.03em; line-height: 1.1; }
.facts span { font-size: 0.9rem; color: var(--nb-ink-3); }

/* ---------- Bento ---------- */
.bento { display: grid; grid-template-columns: repeat(12, 1fr); grid-auto-rows: minmax(120px, auto); gap: 20px; }
.tile { position: relative; display: flex; flex-direction: column; overflow: hidden; border-radius: var(--nb-r-xl); background: var(--nb-surface-2); transition: transform var(--nb-base) var(--nb-ease), box-shadow var(--nb-base) var(--nb-ease); }
.tile-copy { position: relative; z-index: 1; display: grid; gap: 10px; padding: 36px 36px 0; }
.tile-copy h3 { font-size: clamp(1.5rem, 2.2vw, 1.9rem); letter-spacing: -0.03em; line-height: 1.1; }
.tile-copy p { color: var(--nb-ink-2); font-size: 1.0625rem; line-height: 1.5; max-width: 48ch; text-wrap: pretty; }
.tile-copy .tile-meta { margin-top: 12px; color: var(--nb-ink-3); font-size: 0.9375rem; }
.tile-copy .text-link { margin-top: 4px; width: max-content; }
.tile-visual { position: relative; flex: 1; min-height: 240px; }
.tile-board { grid-column: span 7; grid-row: span 2; min-height: 560px; }
.tile-board .tile-visual { margin: 28px 0 0 36px; }
.tile-board .tile-visual img { position: absolute; left: 0; top: 0; width: 118%; max-width: none; border-radius: 18px 0 0 0; box-shadow: 0 0 0 1px rgba(15, 22, 51, 0.08), var(--nb-shadow-lg); }
.tile-lab { grid-column: span 5; grid-row: span 2; min-height: 560px; background: var(--nb-dark); color: #fff; }
.tile-lab .tile-copy p { color: rgba(255, 255, 255, 0.72); }
.tile-lab .text-link { color: #9db0ff; }
.tile-lab .tile-visual { min-height: 300px; }
/* pan-y: poziome przeciągnięcie obraca bryłę, pionowe zostaje przewijaniem strony. Bez tego przeglądarka
   zabierała każdy gest na scroll i model prawie nie reagował na dotyk. */
.tile-lab canvas { position: absolute; inset: 0; width: 100%; height: 100%; cursor: grab; touch-action: pan-y; }
.tile-lab canvas:active { cursor: grabbing; }
/* Równy odstęp 20px od lewej i od dołu, żeby podpowiedź siedziała symetrycznie w rogu kafelka. */
.tile-lab .lab-hint { position: absolute; left: 20px; bottom: 20px; display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: var(--nb-r-pill); background: rgba(255, 255, 255, 0.1); color: rgba(255, 255, 255, 0.8); font-size: 0.78rem; font-weight: 500; pointer-events: none; }
.tile-lab .lab-hint i { width: 6px; height: 6px; border-radius: 50%; background: #5fe0bd; box-shadow: 0 0 0 3px rgba(95, 224, 189, 0.25); }
.tile-lab::after { content: ""; position: absolute; inset: auto -20% -30% -20%; height: 60%; background: radial-gradient(50% 60% at 50% 60%, rgba(69, 87, 245, 0.35), transparent 70%); pointer-events: none; }
.tile-assistant { grid-column: span 6; min-height: 380px; }
.tile-assistant .tile-visual { padding: 24px 36px 32px; display: grid; align-content: end; }
.tile-files { grid-column: span 6; min-height: 380px; background: var(--nb-surface); box-shadow: inset 0 0 0 1px var(--nb-line); }
.tile-files .tile-visual { margin: 20px 36px 0; }

/* Próbka rozmowy z asystentem */
.chat-sample { display: grid; gap: 10px; }
.chat-sample .message { display: flex; gap: 10px; align-items: flex-end; max-width: 88%; }
.chat-sample .message p { padding: 12px 16px; border-radius: 20px; font-size: 0.9375rem; line-height: 1.45; }
.chat-sample .message.user { margin-left: auto; flex-direction: row-reverse; }
.chat-sample .message.user p { background: var(--nb-accent); color: #fff; border-bottom-right-radius: 6px; }
.chat-sample .message.assistant p { background: var(--nb-surface); color: var(--nb-ink); border-bottom-left-radius: 6px; box-shadow: 0 0 0 1px var(--nb-line); }
.chat-sample .bot-dot { display: grid; place-items: center; flex: none; width: 28px; height: 28px; border-radius: 50%; background: var(--nb-ink); color: #fff; font-size: 0.75rem; font-weight: 700; }
.chat-sample .verified { display: flex; width: max-content; align-items: center; gap: 6px; margin-top: 8px; padding: 4px 10px; border-radius: var(--nb-r-pill); background: var(--nb-success-soft); color: var(--nb-success); font-size: 0.75rem; font-weight: 600; }
.chat-sample .verified svg { width: 12px; height: 12px; fill: none; stroke: currentColor; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }

/* Próbka materiałów */
.files-sample { position: relative; height: 100%; min-height: 190px; }
.files-sample .file-card { position: absolute; display: grid; gap: 8px; width: 200px; padding: 16px; border-radius: 18px; background: var(--nb-surface); box-shadow: 0 0 0 1px var(--nb-line), var(--nb-shadow); }
.files-sample .file-card:nth-child(1) { left: 0; top: 10px; transform: rotate(-3deg); }
.files-sample .file-card:nth-child(2) { left: 172px; top: 0; z-index: 1; }
.files-sample .file-card:nth-child(3) { left: 344px; top: 22px; transform: rotate(3deg); }
.files-sample .file-card span { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; width: max-content; border-radius: var(--nb-r-pill); font-size: 0.75rem; font-weight: 600; background: var(--nb-surface-2); color: var(--nb-ink-2); }
.files-sample .file-card span.pdf { background: var(--nb-danger-soft); color: var(--nb-danger); }
.files-sample .file-card span.img { background: var(--nb-accent-soft); color: var(--nb-accent-ink); }
.files-sample .file-card strong { font-size: 0.9rem; font-weight: 600; }
.files-sample .file-card small { color: var(--nb-ink-3); }
.files-sample .file-card i { display: block; height: 6px; border-radius: 3px; background: var(--nb-surface-3); }
.files-sample .file-card i + i { width: 70%; margin-top: -2px; }

/* ---------- Jak działa: sekwencja kroków ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.step { position: relative; padding: 32px 32px 36px; border-radius: var(--nb-r-xl); background: var(--nb-surface); }
.step span { display: inline-grid; place-items: center; width: 40px; height: 40px; margin-bottom: 22px; border-radius: 50%; background: var(--nb-ink); color: #fff; font-weight: 700; font-size: 0.95rem; font-variant-numeric: tabular-nums; }
.step h3 { margin-bottom: 8px; font-size: 1.375rem; }
.step p { color: var(--nb-ink-2); line-height: 1.5; }

/* ---------- Agenci AI ---------- */
.agents { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.agent { padding: 32px 32px 36px; border-radius: var(--nb-r-xl); background: var(--nb-surface-2); }
.agent-icon { display: inline-grid; place-items: center; width: 44px; height: 44px; margin-bottom: 22px; border-radius: 14px; background: var(--nb-accent-soft); color: var(--nb-accent-ink); }
.agent-icon svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.agent h3 { margin-bottom: 8px; font-size: 1.375rem; }
.agent p { color: var(--nb-ink-2); line-height: 1.5; }
.agents-logos { display: flex; justify-content: center; align-items: center; gap: 18px; margin-top: 40px; font-family: var(--nb-font-display); font-size: 1.125rem; font-weight: 700; letter-spacing: -0.02em; color: var(--nb-ink-3); }
.agents-logos i { width: 6px; height: 6px; border-radius: 50%; background: var(--nb-ink-4); }

/* ---------- Silnik brył ---------- */
.engine { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); align-items: center; gap: 56px; }
.engine-eyebrow { display: inline-block; margin-bottom: 18px; padding: 5px 12px; border-radius: var(--nb-r-pill); background: var(--nb-accent-soft); color: var(--nb-accent-ink); font-size: 0.8125rem; font-weight: 600; letter-spacing: 0.02em; }
.engine-copy h2 { margin-bottom: 16px; }
.engine-copy > p { font-size: 1.125rem; line-height: 1.55; color: var(--nb-ink-2); text-wrap: pretty; }
.engine-facts { display: grid; gap: 14px; margin: 28px 0 30px; }
.engine-facts li { display: grid; gap: 2px; padding-left: 18px; border-left: 2px solid var(--nb-accent-soft-2); }
.engine-facts strong { font-size: 1rem; }
.engine-facts span { font-size: 0.9375rem; line-height: 1.45; color: var(--nb-ink-3); }
.engine-visual img { display: block; width: 100%; height: auto; border-radius: 22px; box-shadow: 0 0 0 1px rgba(15, 22, 51, 0.08), var(--nb-shadow-lg); }

/* ---------- Baza zadań ---------- */
.engine-flip { grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); }
.task-sample { display: grid; gap: 20px; max-width: 560px; margin: 0 auto; padding: 30px 32px; border-radius: 22px; background: var(--nb-surface); box-shadow: 0 0 0 1px var(--nb-line), var(--nb-shadow-lg); }
.task-sample-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; }
.task-tag { display: inline-flex; align-items: center; padding: 5px 12px; border-radius: var(--nb-r-pill); background: var(--nb-accent-soft); color: var(--nb-accent-ink); font-size: 0.8125rem; font-weight: 600; letter-spacing: 0.02em; }
.task-tag-muted { background: var(--nb-surface-2); color: var(--nb-ink-2); }
.task-sample-body { font-size: 1.1875rem; line-height: 1.5; color: var(--nb-ink); }
.task-math { font-family: var(--nb-font-display); font-weight: 600; white-space: nowrap; }
.task-math sub { font-size: 0.7em; }
.task-options { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; list-style: none; margin: 0; padding: 0; }
.task-options li { display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-radius: 14px; background: var(--nb-surface); box-shadow: inset 0 0 0 1px var(--nb-line); font-size: 1rem; font-variant-numeric: tabular-nums; }
.task-options strong { display: inline-grid; place-items: center; flex: none; width: 28px; height: 28px; border-radius: 50%; background: var(--nb-surface-2); color: var(--nb-ink-2); font-size: 0.8125rem; font-weight: 700; }
.task-options li.picked { background: var(--nb-accent-soft); box-shadow: inset 0 0 0 1.5px var(--nb-accent); color: var(--nb-accent-ink); font-weight: 600; }
.task-options li.picked strong { background: var(--nb-accent); color: #fff; }
.task-sample-foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; padding-top: 18px; border-top: 1px solid var(--nb-line); font-size: 0.8125rem; color: var(--nb-ink-3); }
.task-verified { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: var(--nb-r-pill); background: var(--nb-success-soft); color: var(--nb-success); font-weight: 600; }
.task-verified svg { width: 12px; height: 12px; fill: none; stroke: currentColor; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
@media (max-width: 900px) {
  .agents { grid-template-columns: 1fr; }
  .engine { grid-template-columns: 1fr; gap: 32px; }
  .engine-flip .engine-copy { order: -1; }
  .task-sample { padding: 24px 20px; }
}

/* ---------- Pakiety (zajawka) ---------- */
.plan-teaser { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }
.plan-teaser article { display: flex; flex-direction: column; gap: 18px; padding: 32px; border-radius: var(--nb-r-xl); background: var(--nb-surface); box-shadow: inset 0 0 0 1px var(--nb-line); }
.plan-teaser article.featured { background: var(--nb-ink); color: #fff; box-shadow: var(--nb-shadow-lg); }
.plan-teaser h3 { font-size: 1.125rem; font-weight: 600; }
.plan-teaser .price { font-family: var(--nb-font-display); font-size: 2.75rem; font-weight: 700; letter-spacing: -0.04em; line-height: 1; }
.plan-teaser .price small { font-size: 1rem; font-weight: 500; letter-spacing: 0; color: var(--nb-ink-3); margin-left: 6px; }
.plan-teaser article.featured .price small { color: rgba(255, 255, 255, 0.6); }
.plan-teaser ul { display: grid; gap: 10px; flex: 1; padding-top: 6px; }
.plan-teaser li { position: relative; padding-left: 26px; font-size: 0.9375rem; color: var(--nb-ink-2); line-height: 1.45; }
.plan-teaser li::before { content: ""; position: absolute; left: 0; top: 4px; width: 16px; height: 16px; border-radius: 50%; background: var(--nb-accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232a38c9' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 12 4 4 8-8'/%3E%3C/svg%3E") center / 10px no-repeat; }
.plan-teaser article.featured li { color: rgba(255, 255, 255, 0.82); }
.plan-teaser article.featured li::before { background-color: rgba(255, 255, 255, 0.14); background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 12 4 4 8-8'/%3E%3C/svg%3E"); }
.plan-teaser .nb-btn { width: 100%; }
.plan-teaser article.featured .nb-btn-secondary { --btn-bg: #fff; --btn-fg: var(--nb-ink); --btn-border: transparent; }
.plans-more { text-align: center; margin-top: 28px; font-size: 1rem; }

/* ---------- Pasek korepetycji ---------- */
.tutoring-strip { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; align-items: center; gap: 40px; padding: 48px 52px; border-radius: var(--nb-r-xl); background: var(--nb-surface-2); }
.tutoring-strip h2 { font-size: clamp(1.6rem, 2.6vw, 2.25rem); margin-bottom: 10px; }
.tutoring-strip p { color: var(--nb-ink-2); font-size: 1.0625rem; line-height: 1.5; max-width: 52ch; }
.price-tag { display: grid; text-align: center; padding: 16px 24px; border-radius: 20px; background: var(--nb-surface); box-shadow: inset 0 0 0 1px var(--nb-line); }
.price-tag strong { font-family: var(--nb-font-display); font-size: 2rem; font-weight: 700; letter-spacing: -0.04em; line-height: 1; }
.price-tag small { color: var(--nb-ink-3); margin-top: 6px; }

/* ---------- Finał ---------- */
.final-cta { display: grid; justify-items: center; text-align: center; gap: 28px; padding: 96px 32px; border-radius: var(--nb-r-xl); background: var(--nb-dark); color: #fff; position: relative; overflow: hidden; }
.final-cta::before { content: ""; position: absolute; inset: -40% -20%; background: var(--nb-aurora-glow); filter: blur(60px); opacity: 0.55; pointer-events: none; }
.final-cta > * { position: relative; }
.final-cta h2 { color: #fff; max-width: 18ch; }
.final-cta p { color: rgba(255, 255, 255, 0.72); font-size: 1.125rem; }

/* ---------- Stopka ---------- */
/* Pole-pułapka na boty w formularzu korepetycji: niewidoczne dla ludzi i czytników ekranu. */
.tutor-website { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.site-footer { padding: 40px 0 48px; background: var(--nb-surface-2); color: var(--nb-ink-3); font-size: 0.8125rem; }
.site-footer .nb-container { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px 32px; }
.site-footer .logo { font-size: 1rem; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 6px 22px; }
.site-footer nav a { display: inline-flex; align-items: center; min-height: 32px; color: var(--nb-ink-2); font-weight: 500; }
.site-footer nav a:hover { color: var(--nb-ink); }

/* =====================================================================
   Strona pakietów
   ===================================================================== */
.plans-hero { text-align: center; padding: 88px 0 56px; }
.plans-hero h1 { margin-bottom: 20px; }
.plans-hero p { max-width: 58ch; margin: 0 auto; font-size: 1.25rem; line-height: 1.5; color: var(--nb-ink-2); text-wrap: pretty; }
.current-plan { display: inline-grid; grid-template-columns: auto 1fr; gap: 2px 14px; align-items: center; margin-top: 32px; padding: 10px 18px 10px 10px; border-radius: var(--nb-r-pill); background: var(--nb-surface-2); text-align: left; }
.current-plan > span { grid-row: span 2; display: inline-flex; align-items: center; min-height: 32px; padding: 0 12px; border-radius: var(--nb-r-pill); background: var(--nb-surface); font-size: 0.8125rem; font-weight: 600; color: var(--nb-accent-ink); box-shadow: var(--nb-shadow-xs); }
.current-plan strong { font-size: 0.95rem; }
.current-plan small { color: var(--nb-ink-3); }
.interval-toggle { display: inline-flex; gap: 4px; margin-top: 28px; padding: 4px; border-radius: var(--nb-r-pill); background: var(--nb-surface-2); }
.interval-toggle button { min-width: 150px; min-height: 42px; padding: 0 18px; border-radius: var(--nb-r-pill); background: transparent; color: var(--nb-ink-2); font-weight: 600; font-size: 0.95rem; transition: background 0.2s, color 0.2s, box-shadow 0.2s; }
.interval-toggle button.active { background: var(--nb-surface); color: var(--nb-ink); box-shadow: var(--nb-shadow-sm); }
.interval-toggle button:focus-visible { outline: 2px solid var(--nb-accent); outline-offset: 2px; }
.interval-hint { margin-top: 14px; font-size: 0.9375rem; color: var(--nb-ink-3); }
.plans-hero .current-plan { margin-top: 26px; }
.billing-box { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px; align-items: center; margin: 8px 0 28px; padding: 24px 28px; border-radius: var(--nb-r-xl); background: var(--nb-surface); box-shadow: inset 0 0 0 1px var(--nb-line); }
.billing-box .section-label { display: block; margin-bottom: 6px; font-size: 0.8125rem; font-weight: 600; color: var(--nb-accent-ink); }
.billing-box strong { display: block; font-size: 1.125rem; margin-bottom: 4px; }
.billing-box p { color: var(--nb-ink-2); font-size: 0.9375rem; line-height: 1.5; max-width: 60ch; }
.billing-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.billing-actions button { min-height: 42px; padding: 0 18px; border-radius: var(--nb-r-pill); background: var(--nb-surface); border: 1px solid var(--nb-line-2); color: var(--nb-ink); font-weight: 600; font-size: 0.9rem; }
.billing-actions button:hover { background: var(--nb-surface-2); }
.billing-actions button:active { transform: scale(0.98); }
.pricing-grid .alt-price { font-size: 0.85rem; color: var(--nb-ink-3); margin-top: -4px; }
.pricing-grid article.pro-plan .alt-price { color: rgba(255, 255, 255, 0.6); }
.payment-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 28px; }
.payment-facts article { padding: 24px 26px; border-radius: var(--nb-r-lg); background: var(--nb-surface-2); }
.payment-facts h3 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; }
.payment-facts p { font-size: 0.9375rem; line-height: 1.5; color: var(--nb-ink-2); }
.seats-notice { margin-top: 22px; padding: 14px 18px; border-radius: 14px; background: var(--nb-accent-soft); color: var(--nb-ink-2); font-size: 0.9375rem; line-height: 1.5; max-width: 60ch; }
.seats-notice strong { color: var(--nb-ink); }
.pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; align-items: stretch; padding-top: 8px; }
.pricing-grid article { position: relative; display: flex; flex-direction: column; gap: 20px; padding: 28px 24px; border-radius: var(--nb-r-xl); background: var(--nb-surface); box-shadow: inset 0 0 0 1px var(--nb-line); transition: transform var(--nb-base) var(--nb-ease), box-shadow var(--nb-base) var(--nb-ease); }
.pricing-grid article:hover { transform: translateY(-2px); box-shadow: inset 0 0 0 1px var(--nb-line), var(--nb-shadow); }
.pricing-grid article.featured { box-shadow: inset 0 0 0 2px var(--nb-accent); }
.pricing-grid article.pro-plan { background: var(--nb-ink); color: #fff; box-shadow: var(--nb-shadow-lg); }
.pricing-grid .recommendation { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); padding: 6px 12px; border-radius: var(--nb-r-pill); background: var(--nb-accent); color: #fff; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.02em; white-space: nowrap; }
.pricing-grid header { display: grid; gap: 10px; min-height: 150px; }
.pricing-grid header > span { font-size: 1rem; font-weight: 600; }
.pricing-grid header h2 { font-size: 2.25rem; letter-spacing: -0.04em; line-height: 1; }
.pricing-grid header h2 small { font-size: 0.95rem; font-weight: 500; letter-spacing: 0; color: var(--nb-ink-3); margin-left: 4px; }
.pricing-grid article.pro-plan header h2 small { color: rgba(255, 255, 255, 0.6); }
.pricing-grid header p { font-size: 0.9rem; color: var(--nb-ink-2); line-height: 1.45; }
.pricing-grid article.pro-plan header p { color: rgba(255, 255, 255, 0.74); }
.pricing-grid ul { display: grid; gap: 10px; flex: 1; padding-top: 18px; border-top: 1px solid var(--nb-line); }
.pricing-grid article.pro-plan ul { border-top-color: rgba(255, 255, 255, 0.14); }
.pricing-grid li { position: relative; padding-left: 24px; font-size: 0.9rem; line-height: 1.4; color: var(--nb-ink-2); }
.pricing-grid li b { color: var(--nb-ink); }
.pricing-grid li::before { content: ""; position: absolute; left: 0; top: 3px; width: 15px; height: 15px; border-radius: 50%; background: var(--nb-accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232a38c9' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 12 4 4 8-8'/%3E%3C/svg%3E") center / 9px no-repeat; }
.pricing-grid article.pro-plan li { color: rgba(255, 255, 255, 0.82); }
.pricing-grid article.pro-plan li b { color: #fff; }
.pricing-grid article.pro-plan li::before { background-color: rgba(255, 255, 255, 0.14); background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 12 4 4 8-8'/%3E%3C/svg%3E"); }
.pricing-grid button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 12px; white-space: nowrap; font-size: 0.9rem; border-radius: var(--nb-r-pill); border: 1px solid var(--nb-line-2); background: var(--nb-surface); font-weight: 600; font-size: 0.9375rem; transition: background var(--nb-fast) var(--nb-ease), transform var(--nb-fast) var(--nb-ease), color var(--nb-fast) var(--nb-ease); }
.pricing-grid button:hover { background: var(--nb-surface-2); }
.pricing-grid button:active { transform: scale(0.98); }
.pricing-grid article.featured button { background: var(--nb-accent); border-color: transparent; color: #fff; }
.pricing-grid article.featured button:hover { background: var(--nb-accent-2); }
.pricing-grid article.pro-plan button { background: #fff; border-color: transparent; color: var(--nb-ink); }
.pricing-grid article.pro-plan button:hover { background: #eceef5; }
.pricing-grid article.current button { background: var(--nb-surface-2); color: var(--nb-ink-3); cursor: default; }
.pricing-logic { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 40px; align-items: center; margin-top: 72px; padding: 48px 52px; border-radius: var(--nb-r-xl); background: var(--nb-surface-2); }
.pricing-logic h2 { font-size: clamp(1.5rem, 2.4vw, 2rem); }
.pricing-logic p { color: var(--nb-ink-2); font-size: 1.0625rem; line-height: 1.55; }
.plans-public-page .tutoring-strip { margin-top: 20px; }
.plans-public-page main, .tutoring-public-page main { padding-bottom: 96px; }

/* =====================================================================
   Korepetycje
   ===================================================================== */
.tutoring-hero { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 56px; align-items: center; padding: 88px 0 72px; }
.tutoring-hero h1 { margin-bottom: 20px; font-size: clamp(2.6rem, 5vw, 4.25rem); }
.tutoring-hero .nb-lead { margin-bottom: 32px; }
.tutoring-hero .hero-actions { justify-content: flex-start; }
.lesson-offer { display: grid; gap: 20px; padding: 32px; border-radius: var(--nb-r-xl); background: var(--nb-surface-2); }
.lesson-price { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.lesson-price strong { font-family: var(--nb-font-display); font-size: 2.5rem; font-weight: 700; letter-spacing: -0.04em; line-height: 1; }
.lesson-price span { color: var(--nb-ink-3); font-size: 0.9375rem; }
.lesson-offer ul { display: grid; gap: 14px; }
.lesson-offer li { display: grid; grid-template-columns: auto 1fr; gap: 12px; align-items: start; font-size: 0.9375rem; line-height: 1.45; color: var(--nb-ink-2); }
.lesson-offer li strong { color: var(--nb-ink); }
.lesson-offer li svg { width: 34px; height: 34px; padding: 8px; border-radius: 10px; background: var(--nb-surface); color: var(--nb-accent-ink); fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; box-shadow: var(--nb-shadow-xs); }
.lesson-offer small { color: var(--nb-ink-3); }
.subject-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.subject-grid article { display: grid; gap: 10px; align-content: start; padding: 32px; border-radius: var(--nb-r-xl); background: var(--nb-surface-2); }
.subject-grid article > span { display: inline-flex; align-items: center; min-height: 30px; padding: 0 12px; width: max-content; border-radius: var(--nb-r-pill); background: var(--nb-surface); font-family: var(--nb-font-mono); font-size: 0.78rem; font-weight: 600; color: var(--nb-accent-ink); box-shadow: var(--nb-shadow-xs); margin-bottom: 8px; }
.subject-grid h3 { font-size: 1.25rem; }
.subject-grid p { color: var(--nb-ink-2); line-height: 1.5; }
.process-line { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.process-line article { padding: 28px; border-radius: var(--nb-r-xl); background: var(--nb-surface); box-shadow: inset 0 0 0 1px var(--nb-line); }
.process-line b { display: inline-grid; place-items: center; width: 36px; height: 36px; margin-bottom: 18px; border-radius: 50%; background: var(--nb-ink); color: #fff; font-size: 0.9rem; font-weight: 700; }
.process-line h3 { font-size: 1.125rem; margin-bottom: 6px; }
.process-line p { color: var(--nb-ink-2); font-size: 0.9375rem; line-height: 1.5; }
.booking-section { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 56px; align-items: start; }
.booking-copy h2 { margin-bottom: 16px; }
.booking-copy > p { color: var(--nb-ink-2); font-size: 1.125rem; line-height: 1.5; margin-bottom: 28px; }
.booking-price { display: grid; gap: 4px; width: max-content; padding: 20px 24px; border-radius: 20px; background: var(--nb-surface-2); }
.booking-price small { font-size: 0.78rem; font-weight: 600; color: var(--nb-ink-3); }
.booking-price strong { font-family: var(--nb-font-display); font-size: 2rem; font-weight: 700; letter-spacing: -0.04em; line-height: 1; }
.booking-price span { color: var(--nb-ink-3); font-size: 0.875rem; }
#tutoring-form { display: grid; gap: 18px; padding: 36px; border-radius: var(--nb-r-xl); background: var(--nb-surface); box-shadow: 0 0 0 1px var(--nb-line), var(--nb-shadow); }
#tutoring-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
#tutoring-form .form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; padding-top: 4px; }
.form-status { color: var(--nb-success); font-weight: 500; font-size: 0.9375rem; }
.form-status:empty { display: none; }
.faq-section .section-heading { text-align: left; margin: 0 0 32px; }
.faq-list { display: grid; gap: 12px; max-width: 820px; }
.faq-list details { border-radius: 20px; background: var(--nb-surface-2); overflow: hidden; }
.faq-list summary { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 20px 24px; font-weight: 600; font-size: 1.0625rem; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--nb-surface); color: var(--nb-ink-2); font-weight: 500; font-size: 1.1rem; box-shadow: var(--nb-shadow-xs); transition: transform var(--nb-base) var(--nb-ease); flex: none; }
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list details p { padding: 0 24px 22px; color: var(--nb-ink-2); line-height: 1.55; max-width: 64ch; }

/* =====================================================================
   Responsywność
   ===================================================================== */
@media (max-width: 1200px) {
  .public-account-copy { display: none; }
  .public-user-trigger { padding-right: 8px; }
  .main-nav a { padding: 0 11px; }
}
@media (max-width: 1100px) {
  .bento { grid-auto-rows: auto; }
  .tile-board, .tile-lab, .tile-assistant, .tile-files { grid-column: span 12; grid-row: auto; min-height: 0; }
  .tile-board .tile-visual { min-height: 320px; }
  .tile-lab .tile-visual { min-height: 320px; }
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .process-line { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 960px) {
  .site-header { grid-template-columns: auto 1fr; gap: 12px; padding: 0 20px; height: 56px; }
  .main-nav { position: fixed; inset: 56px 0 auto 0; width: 100%; justify-self: stretch; z-index: var(--nb-z-header); flex-direction: column; align-items: stretch; gap: 4px; padding: 12px 16px 20px; background: rgba(255, 255, 255, 0.96); -webkit-backdrop-filter: var(--nb-glass-blur); backdrop-filter: var(--nb-glass-blur); border-bottom: 1px solid var(--nb-line); box-shadow: var(--nb-shadow-lg); transform: translateY(-8px); opacity: 0; pointer-events: none; transition: opacity var(--nb-base) var(--nb-ease), transform var(--nb-base) var(--nb-ease); }
  .main-nav.open { transform: none; opacity: 1; pointer-events: auto; }
  .main-nav a { min-height: 48px; font-size: 1.05rem; }
  .menu-button { display: block; }
  .public-account-copy { display: none; }
  .public-panel-button { padding: 0 12px; }
  .public-panel-button span { display: none; }
  .public-panel-button svg { width: 18px; height: 18px; }
  .section { padding: 80px 0; }
  .section-heading { margin-bottom: 36px; }
  .hero { padding-top: 56px; }
  .hero-stage { margin-top: 44px; width: min(100% - 32px, 1180px); }
  .hero-board-bar { padding: 10px 12px; }
  .hero-board-bar > span { font-size: 0.8125rem; min-width: 0; overflow: hidden; }
  .hero-board-bar > span strong { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .hero-board-tools { flex: none; }
  .hero-board-bar > span > :not(strong):not(.hero-board-dots) { display: none; }
  .hero-board-live { display: none; }
  .hero-board-tools button { width: 32px; height: 32px; }
  .hero-board-canvas { aspect-ratio: 4 / 3.4; }
  .hero-assistant { right: 12px; left: 12px; bottom: 12px; width: auto; padding: 10px 12px; gap: 10px; }
  /* Panel asystenta leży na płótnie, więc pełny akapit zjadałby połowę tablicy. Skracamy do trzech linii. */
  .hero-assistant p { font-size: 0.8125rem; display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 3; line-clamp: 3; overflow: hidden; }
  .hero-assistant small { display: none; }
  .hero-board-hint { top: 12px; bottom: auto; left: 12px; }
  .facts { grid-template-columns: repeat(2, 1fr); gap: 24px 0; margin-top: 44px; }
  /* Symetryczne wcięcia: tekst jest wyśrodkowany, więc padding tylko z jednej strony zwodziłby go w bok. */
  .facts > div, .facts > div:first-child { padding: 0 14px; }
  .facts > div:nth-child(odd) { border-left: 0; }
  .steps, .plan-teaser, .subject-grid { grid-template-columns: 1fr; }
  .tutoring-strip, .pricing-logic { grid-template-columns: 1fr; gap: 24px; padding: 32px; }
  .tutoring-hero, .booking-section { grid-template-columns: 1fr; gap: 32px; padding-top: 56px; }
  .pricing-grid { grid-template-columns: 1fr 1fr; }
  .payment-facts { grid-template-columns: 1fr; }
  .billing-box { grid-template-columns: 1fr; }
  .final-cta { padding: 64px 24px; }
}
@media (max-width: 640px) {
  .tile-copy { padding: 28px 24px 0; }
  /* Na wąskim ekranie zrzut tablicy mieści się w całości zamiast wychodzić poza prawą krawędź kafelka. */
  .tile-board .tile-visual { margin: 20px 24px 24px; min-height: 0; }
  .tile-board .tile-visual img { position: relative; width: 100%; border-radius: 14px; }
  .hero-assistant p { -webkit-line-clamp: 2; line-clamp: 2; }
  .tile-assistant .tile-visual, .tile-files .tile-visual { padding-left: 24px; padding-right: 24px; margin-left: 24px; margin-right: 24px; }
  .tile-assistant .tile-visual { margin: 0; }
  .files-sample .file-card:nth-child(3) { display: none; }
  .files-sample .file-card:nth-child(2) { left: 120px; }
  .pricing-grid { grid-template-columns: 1fr; }
  .interval-toggle button { min-width: 0; flex: 1; }
  .process-line { grid-template-columns: 1fr; }
  #tutoring-form { padding: 24px; }
  #tutoring-form .form-row { grid-template-columns: 1fr; }
  .hero-content h1 { font-size: clamp(2.5rem, 12vw, 3.4rem); }
  .facts { grid-template-columns: 1fr; gap: 18px; }
  .facts > div, .facts > div:first-child { border-left: 0; padding: 0; }
}

/* Bardzo wąskie ekrany (320 px): nagłówek mieści logo, ikonę logowania i menu bez przewijania w poziomie. */
@media (max-width: 360px) {
  .site-header { padding: 0 14px; }
  .public-login-button { padding: 0 11px; }
  .public-login-button span { display: none; }
  .public-login-button svg { width: 20px; height: 20px; }
}
@media (max-width: 480px) {
  .files-sample .file-card { width: 168px; }
  .files-sample .file-card:nth-child(2) { left: 96px; }
  .files-sample .file-card:nth-child(3) { display: none; }
}

@media (max-width: 960px) {
  .facts { margin-top: 80px; }
}

/* Strony prawne: regulamin i polityka prywatności. */
.legal-page main { padding: 48px 0 96px; }
.legal { max-width: 76ch; margin: 0 auto; }
.legal-head h1 { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.04em; line-height: 1.05; }
.legal-head p { margin-top: 12px; color: var(--nb-ink-3); }
.legal-notice { display: grid; gap: 6px; margin: 28px 0 32px; padding: 18px 20px; border-radius: var(--nb-r-lg); background: var(--nb-warning-soft); color: #5a3a06; font-size: 0.9375rem; line-height: 1.5; }
.legal-notice code { font-family: var(--nb-font-mono); font-size: 0.85em; }
.legal-toc { display: grid; gap: 6px; margin: 0 0 12px; padding: 20px 22px; border-radius: var(--nb-r-lg); background: var(--nb-surface); box-shadow: 0 0 0 1px var(--nb-line); }
.legal-toc a { font-size: 0.9375rem; color: var(--nb-ink-2); }
.legal-toc a:hover { color: var(--nb-accent-ink); }
.legal section { margin-top: 40px; }
.legal h2 { font-size: 1.375rem; letter-spacing: -0.02em; margin-bottom: 12px; scroll-margin-top: 80px; }
.legal p, .legal li { line-height: 1.65; color: var(--nb-ink-2); }
.legal p + p, .legal ol + p, .legal ul + p, .legal .legal-table + ol { margin-top: 12px; }
.legal ol, .legal ul { margin: 10px 0 0 22px; display: grid; gap: 8px; }
.legal a { color: var(--nb-accent-ink); font-weight: 600; }
.legal-table { overflow-x: auto; margin-top: 12px; }
.legal table { width: 100%; min-width: 560px; border-collapse: collapse; font-size: 0.9375rem; }
.legal th, .legal td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--nb-line); vertical-align: top; color: var(--nb-ink-2); line-height: 1.5; }
.legal th { color: var(--nb-ink); font-weight: 600; }
.legal .fill { padding: 1px 6px; border-radius: 6px; background: #fdf2df; color: #7a4a05; font-weight: 600; }
.legal-meta { margin-top: 44px; padding-top: 20px; border-top: 1px solid var(--nb-line); font-size: 0.875rem; color: var(--nb-ink-3); }