/* ==========================================================================
   NaviAble - strona publiczna
   ========================================================================== */

/* --- Nagłówek -------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgb(255 255 255 / 92%);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  min-height: 72px;
}

.site-header .brand img {
  width: 36px;
  height: 36px;
}

.site-nav {
  margin-left: auto;
}

.site-nav__toggle {
  display: none;
  align-items: center;
  gap: 0.45rem;
  min-height: 44px;
  padding: 0.35rem 0.7rem;
  border: 1.5px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.site-nav__toggle-icon {
  position: relative;
  display: block;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
}

.site-nav__toggle-icon::before,
.site-nav__toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
}

.site-nav__toggle-icon::before {
  top: -5px;
}

.site-nav__toggle-icon::after {
  top: 5px;
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav li + li {
  margin: 0;
}

.site-nav a:not(.btn) {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--ink-soft);
  font-weight: 600;
  text-decoration: none;
}

.site-nav a:not(.btn):hover {
  background: var(--surface-3);
  color: var(--ink);
}

.site-header__cta {
  margin-left: 0.35rem;
}

@media (max-width: 860px) {
  .site-nav {
    margin-left: auto;
  }

  .site-nav__toggle {
    display: inline-flex;
  }

  .site-nav ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0.15rem;
    padding: 0.75rem clamp(1.25rem, 5vw, 2rem) 1rem;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
  }

  .site-nav ul.is-open {
    display: flex;
  }

  .site-nav li + li {
    margin: 0;
  }

  .site-nav a:not(.btn) {
    min-height: 46px;
    padding: 0 0.5rem;
  }
}

/* --- Hero ------------------------------------------------------------------ */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(1100px 480px at 82% -10%, #1e3a8a 0%, transparent 62%),
    radial-gradient(900px 420px at 8% 110%, #0e7490 0%, transparent 55%),
    #0b1220;
  color: #e6edf7;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgb(255 255 255 / 4%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / 4%) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(60% 60% at 50% 40%, #000 30%, transparent 100%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: var(--space-7);
  align-items: center;
  padding-block: clamp(3rem, 6vw, 6rem);
}

.hero h1 {
  color: #fff;
}

.hero__accent {
  color: #7dd3fc;
}

.hero .btn--secondary {
  background: transparent;
  color: #fff;
  border-color: rgb(255 255 255 / 38%);
}

.hero .btn--secondary:hover {
  background: rgb(255 255 255 / 10%);
  border-color: #fff;
  color: #fff;
}

.hero .lead {
  color: #cbd5e1;
  font-size: clamp(1.08rem, 1rem + 0.5vw, 1.3rem);
  max-width: 40ch;
}

.hero .eyebrow {
  color: #7dd3fc;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin-top: var(--space-5);
  padding: 0;
  list-style: none;
  color: #b6c2d6;
  font-size: 0.9rem;
}

.hero__meta li {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin: 0;
}

.hero__meta li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #38bdf8;
}

/* Podglądowa "przeglądarka" */
.browser {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 40px 90px -30px rgb(0 0 0 / 65%);
  overflow: hidden;
  color: var(--ink);
  transform: rotate(0.6deg);
}

.browser__bar {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.65rem 0.9rem;
  background: #eef2f8;
  border-bottom: 1px solid var(--line);
}

.browser__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #cbd5e1;
}

.browser__url {
  flex: 1;
  margin-left: 0.5rem;
  padding: 0.25rem 0.7rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.74rem;
  color: var(--muted);
  font-family: var(--font-mono);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.browser__body {
  padding: 1.1rem;
  background:
    linear-gradient(#f8fafc, #f8fafc) padding-box,
    #fff;
}

.mock-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 0.9rem;
}

.mock-logo {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: var(--ink);
  flex: none;
}

.mock-line {
  height: 9px;
  border-radius: 999px;
  background: #dbe3ef;
}

.mock-line--w40 { width: 40%; }
.mock-line--w55 { width: 55%; }
.mock-line--w70 { width: 70%; }
.mock-line--w90 { width: 90%; }
.mock-line--accent { background: #c7d6ff; }

.mock-skip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0.5rem;
  margin-bottom: 0.8rem;
  border: 1.5px dashed var(--brand);
  border-radius: 6px;
  color: var(--brand-dark);
  font-size: 0.68rem;
  font-weight: 700;
  background: var(--brand-soft);
}

.mock-focus {
  display: inline-block;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  outline: 3px solid var(--brand);
  outline-offset: 2px;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--ink);
}

.mock-card {
  padding: 0.8rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  margin-top: 0.8rem;
}

.mock-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.8rem;
}

.mock-badge {
  padding: 0.12rem 0.5rem;
  border-radius: 999px;
  background: var(--ok-soft);
  color: var(--ok);
  font-size: 0.64rem;
  font-weight: 800;
}

/* --- Karty problemu -------------------------------------------------------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-5);
}

.feature-card {
  padding: var(--space-5);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.feature-card__icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-bottom: var(--space-4);
  border-radius: 12px;
  background: var(--brand-soft);
  color: var(--brand-dark);
  font-size: 1.3rem;
  font-weight: 800;
}

.feature-card__icon svg {
  width: 23px;
  height: 23px;
}

.feature-card h3 {
  font-size: 1.12rem;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.97rem;
}

/* --- Kroki ---------------------------------------------------------------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.step {
  position: relative;
  padding: var(--space-5) var(--space-4);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin: 0;
}

.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  display: inline-block;
  margin-bottom: var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--brand-dark);
  background: var(--brand-soft);
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
}

.step h3 {
  font-size: 1.03rem;
  margin-bottom: 0.35rem;
}

.step p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--muted);
}

/* --- Sekcja ciemna -------------------------------------------------------- */
.on-dark {
  background: #0b1220;
  color: #dbe4f0;
}

.on-dark h2,
.on-dark h3 {
  color: #fff;
}

.on-dark .lead {
  color: #c3cfe2;
}

.on-dark .eyebrow {
  color: #7dd3fc;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: var(--space-7);
  align-items: start;
}

.checklist {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3) var(--space-5);
  margin: 0;
  padding: 0;
  list-style: none;
}

.checklist li {
  display: flex;
  gap: 0.7rem;
  margin: 0;
  padding: 0.85rem 0;
  border-bottom: 1px solid rgb(255 255 255 / 12%);
  font-size: 0.97rem;
  color: #c9d5e6;
}

.checklist li::before {
  content: "✓";
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  flex: none;
  border-radius: 50%;
  background: #0e7490;
  color: #fff;
  font-size: 0.78rem;
  font-weight: 900;
  margin-top: 0.15rem;
}

.checklist strong {
  color: #fff;
  display: block;
}

/* --- Kod / API ------------------------------------------------------------ */
.code-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--space-5);
  align-items: start;
}

.code-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: #0b1220;
  border: 1px solid #1e293b;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.code-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 0.6rem 0.75rem 0.6rem 1rem;
  background: #111a2c;
  border-bottom: 1px solid #1e293b;
  color: #cbd5e1;
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.code-card pre {
  border-radius: 0;
  max-height: 420px;
  margin: 0;
}

.copy-btn {
  min-height: 32px;
  padding: 0.25rem 0.6rem;
  border: 1px solid #334155;
  border-radius: 6px;
  background: #1e293b;
  color: #e2e8f0;
  font: inherit;
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
}

.copy-btn:hover {
  background: #273449;
  color: #fff;
}

.copy-status {
  color: #86efac;
  font-size: 0.75rem;
  min-height: 1.2em;
}

/* --- CTA ------------------------------------------------------------------ */
.cta {
  position: relative;
  overflow: hidden;
  padding: clamp(2.5rem, 5vw, 4rem);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(700px 300px at 90% 0%, #1d4ed8 0%, transparent 60%),
    #0b1220;
  color: #fff;
  box-shadow: var(--shadow-lg);
}

.cta h2 {
  color: #fff;
  max-width: 22ch;
}

.cta p {
  color: #c7d3e6;
  max-width: 60ch;
}

.cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

/* --- Stopka --------------------------------------------------------------- */
.site-footer {
  padding-block: var(--space-7);
  border-top: 1px solid var(--line);
  background: var(--surface-2);
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
  justify-content: space-between;
  align-items: flex-start;
}

.site-footer p {
  margin: 0;
  max-width: 52ch;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links li {
  margin: 0;
}

.footer-links a {
  color: var(--ink-soft);
  font-weight: 600;
}

/* --- Responsywność -------------------------------------------------------- */
@media (max-width: 980px) {
  .hero__inner {
    grid-template-columns: 1fr;
  }

  .browser {
    transform: none;
    max-width: 560px;
  }

  .grid-3,
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .split,
  .code-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-header__inner {
    min-height: 64px;
  }

  .grid-3,
  .steps,
  .checklist {
    grid-template-columns: 1fr;
  }

  .section {
    padding-block: var(--space-7);
  }

  .brand span {
    font-size: 1rem;
  }
}