*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:                   #fafafa;
  --bg-2:                 #f4f4f5;
  --bg-3:                 #e4e4e7;
  --surface:              #ffffff;
  --surface-2:            #fafafa;
  --border:               rgba(24,24,27,.1);
  --gray:                 #888;
  --accent:               #dc2626;
  --accent-light:         #ff6a6a;
  --accent-2:             #f87171;
  --accent-dark:          #b91c1c;
  --accent-glow:          rgba(220,38,38,.12);
  --accent-subtle:        rgba(220,38,38,.07);
  --accent-subtle-border: rgba(220,38,38,.16);
  --accent-border:        rgba(220,38,38,.28);
  --text:                 #09090b;
  --text-2:               #52525b;
  --text-3:               #a1a1aa;
  --white:                #ffffff;
  --header-bg:            rgba(250,250,250,.93);
  --radius:               10px;
  --radius-lg:            16px;
  --shadow:               0 1px 3px rgba(0,0,0,.06), 0 8px 24px rgba(0,0,0,.06);
  --shadow-lg:            0 4px 32px rgba(0,0,0,.1);
  --font:                 'Inter', system-ui, sans-serif;
  --mono:                 'JetBrains Mono', monospace;
  --transition:           .25s ease;
  --max-w:                1200px;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
  width: 100%;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-2); }
::-webkit-scrollbar-thumb { background: var(--bg-3); border-radius: 3px; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 2rem; }
.section { padding: 7rem 0; }
.section--alt { background: var(--bg-2); }

/* Typography */
.section__pre {
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .85rem;
}

.section__title {
  font-size: clamp(1.85rem, 3.2vw, 2.75rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.025em;
  color: var(--text);
}

.section__sub {
  font-size: 1rem;
  color: var(--text-2);
  margin-top: .85rem;
}

.section__header { text-align: center; margin-bottom: 4rem; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .8rem 1.85rem;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: .925rem;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn--primary {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
  box-shadow: 0 2px 12px var(--accent-glow);
  text-shadow: 0 1px 2px rgba(0,0,0,.25);
}
.btn--primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px var(--accent-border);
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.btn--full { width: 100%; justify-content: center; }
.btn__icon { width: 16px; height: 16px; flex-shrink: 0; }

/* Reveal */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* Header */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1.25rem 0;
  transition: background var(--transition), padding var(--transition), border-color var(--transition);
  border-bottom: 1px solid transparent;
}

.header.scrolled {
  background: var(--header-bg);
  backdrop-filter: blur(16px);
  padding: .75rem 0;
  border-bottom-color: var(--border);
}

.nav { display: flex; align-items: center; justify-content: space-between; }

.nav__logo {
  font-family: var(--mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
}
.logo__bracket { color: var(--accent); }
.logo__i {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  line-height: .55;
  vertical-align: middle;
  color: var(--accent);
  font-size: .78em;
}

.nav__list { display: flex; align-items: center; gap: 2.25rem; }

.nav__link {
  font-size: .875rem;
  font-weight: 500;
  color: var(--text-2);
  transition: color var(--transition);
}
.nav__link:hover, .nav__link.active { color: var(--text); }

.nav__link--cta {
  background: var(--accent);
  color: var(--white);
  padding: .45rem 1.2rem;
  border-radius: var(--radius);
  font-size: .82rem;
}
.nav__link--cta:hover { background: var(--accent-dark); color: var(--white); }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__toggle span {
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
  display: block;
}
.nav__toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.nav__toggle.active span:nth-child(2) { opacity: 0; }
.nav__toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 5rem;
  background: var(--bg);
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 70% 40%, rgba(37,99,235,.07) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 90% 80%, rgba(96,165,250,.05) 0%, transparent 60%);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 1000px;
  padding-top: 2rem;
  padding-bottom: 6rem;
}

.hero__pre {
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.hero__title {
  font-size: clamp(2.2rem, 5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.03em;
  color: var(--text);
  margin-bottom: 1.5rem;
}

.hero__accent {
  color: var(--accent);
}

.hero__desc {
  font-size: 1.05rem;
  color: var(--text-2);
  margin-bottom: 2.5rem;
  max-width: 600px;
  line-height: 1.8;
}

.hero__actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 3.5rem; }

.hero__stats { display: flex; align-items: center; gap: 2.5rem; }

.stat { display: flex; flex-direction: column; align-items: flex-start; }

.stat__num {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.stat__plus { font-size: 1.4rem; font-weight: 700; color: var(--accent); vertical-align: super; margin-left: 2px; }
.stat__label { font-size: .78rem; color: var(--text-3); margin-top: .35rem; }
.stat__divider { width: 1px; height: 44px; background: var(--border); }

.stat__badges { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: .35rem; }
.stat__badge {
  font-family: var(--mono);
  font-size: .7rem;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-subtle);
  border: 1px solid var(--accent-subtle-border);
  padding: .18rem .6rem;
  border-radius: 4px;
}

.hero__scroll {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}

.scroll__line {
  display: block;
  width: 1px;
  height: 56px;
  background: linear-gradient(to bottom, transparent, var(--accent));
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: .35; transform: scaleY(.8); }
  50%       { opacity: .85; transform: scaleY(1); }
}

/* sekcja uslug */
.what__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 5rem;
  align-items: center;
  margin-bottom: 5rem;
}

.what__visual { position: relative; min-width: 0; }

.about__code-block {
  background: #1e293b;
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  max-width: 100%;
}

.code-bar {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .8rem 1.2rem;
  background: #0f172a;
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.code-dot { width: 11px; height: 11px; border-radius: 50%; }
.code-dot--red    { background: #ff5f57; }
.code-dot--yellow { background: #febc2e; }
.code-dot--green  { background: #28c840; }

.code-filename {
  font-family: var(--mono);
  font-size: .75rem;
  color: rgba(255,255,255,.3);
  margin-left: .4rem;
}

.code-body {
  padding: 1.5rem;
  font-family: var(--mono);
  font-size: .85rem;
  line-height: 1.9;
  overflow-x: auto;
  max-width: 100%;
  color: #e2e8f0;
}

.c-kw    { color: #c792ea; }
.c-var   { color: #82aaff; }
.c-op    { color: #546e7a; }
.c-brace { color: #89ddff; }

.about__badge {
  position: absolute;
  bottom: -1.5rem;
  right: -1.5rem;
  background: var(--accent);
  color: var(--white);
  font-size: .8rem;
  font-weight: 600;
  padding: .7rem 1.2rem;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: .5rem;
  box-shadow: 0 6px 20px var(--accent-glow);
}
.about__badge svg { width: 16px; height: 16px; }

.what__text { padding: 0 1rem; }

.about__lead {
  font-size: 1rem;
  color: var(--text-2);
  margin: 1.25rem 0 0;
  line-height: 1.85;
}

/* Services */
.services__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.25rem; }

.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
  min-width: 0;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent);
  opacity: 0;
  transition: opacity var(--transition);
}

.service-card:hover {
  border-color: var(--accent-border);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.service-card:hover::before { opacity: 1; }

.service-card__icon {
  width: 44px; height: 44px;
  background: var(--accent-subtle);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.1rem;
  color: var(--accent);
}
.service-card__icon svg { width: 22px; height: 22px; }

.service-card h3 { font-size: 1rem; font-weight: 700; color: var(--text); margin-bottom: .65rem; }
.service-card p { font-size: .875rem; color: var(--text-2); line-height: 1.75; margin-bottom: 1.1rem; }

.service-card__tags { display: flex; flex-wrap: wrap; gap: .35rem; }
.service-card__tags li {
  font-family: var(--mono);
  font-size: .7rem;
  color: var(--accent);
  background: var(--accent-subtle);
  border: 1px solid var(--accent-subtle-border);
  padding: .18rem .6rem;
  border-radius: 4px;
}

/* Process */
.process__steps { display: grid; gap: 1.5rem; position: relative; }
.process__steps--5 { grid-template-columns: repeat(5, 1fr); }

.process__steps--5::before {
  content: '';
  position: absolute;
  top: 2.8rem;
  left: 0rem;
  right: 2rem;
  height: 1px;
  background: var(--border);
}

.process__step { position: relative; z-index: 1; }

.step__num {
  font-family: var(--mono);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--accent-light);
  line-height: 1;
  margin-bottom: 1.1rem;
  position: relative;
}



.step__content h3 { font-size: .95rem; font-weight: 700; color: var(--text); margin-bottom: .5rem; }
.step__content p { font-size: .83rem; color: var(--text-2); line-height: 1.7; }

/* Why */
.why__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }

.why-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.why-card:hover {
  border-color: var(--accent-border);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.why-card__num {
  font-family: var(--mono);
  font-size: .75rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: .1em;
  margin-bottom: 1.1rem;
}

.why-card h3 { 
  font-size: 1rem; 
  font-weight: 700; 
  color: var(--text); 
  margin-bottom: .75rem; 
  line-height: 1.35; 
  border-bottom: 1px dashed var(--accent); 
  padding-bottom: 10px;
}
.why-card p { font-size: .875rem; color: var(--text-2); line-height: 1.75; }

/* dla kogo */
.forwho__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start; }

.signals__label {
  font-size: .8rem;
  font-weight: 600;
  color: var(--text-3);
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

[data-theme="ciemny"] .signals__label {
  color: var(--white);
}

.signals__list { display: flex; flex-direction: column; gap: .85rem; margin-bottom: 2.25rem; }

.signals__list li {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  font-size: .92rem;
  color: var(--text-2);
  line-height: 1.5;
}

.signals__list svg {
  width: 15px; height: 15px;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: .2rem;
}

/* Contact */
.contact__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start; }

.contact__lead { font-size: .975rem; color: var(--text-2); line-height: 1.85; margin: 1.25rem 0 2.25rem; }

.contact__details { display: flex; flex-direction: column; gap: 1.1rem; }

.contact__item {
  display: flex;
  align-items: center;
  gap: .8rem;
  font-size: .92rem;
  color: var(--text-2);
  transition: color var(--transition);
}
.contact__item svg { width: 18px; height: 18px; color: var(--accent); flex-shrink: 0; }
.contact__item:hover { color: var(--text); }

.contact__form-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow);
}

.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: .85rem; }

.form__group { display: flex; flex-direction: column; gap: .4rem; margin-bottom: 1.1rem; }

.form__group label,
.contact__label { font-size: .82rem; font-weight: 500; color: var(--text-2); }

.form__group input,
.form__group textarea {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .75rem 1rem;
  font-family: var(--font);
  font-size: .9rem;
  color: var(--text);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: vertical;
}

.form__group input::placeholder,
.form__group textarea::placeholder { color: var(--text-3); }

.form__group input:focus,
.form__group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form__group input[aria-invalid="true"],
.form__group textarea[aria-invalid="true"] {
  border-color: #dc2626;
  box-shadow: 0 0 0 3px rgba(220,38,38,.12);
}

.form__success {
  display: none;
  align-items: center;
  gap: .7rem;
  margin-top: .85rem;
  padding: .9rem 1.1rem;
  background: rgba(22,163,74,.08);
  border: 1px solid rgba(22,163,74,.2);
  border-radius: var(--radius);
  color: #15803d;
  font-size: .875rem;
  font-weight: 500;
}
.form__success svg { width: 18px; height: 18px; flex-shrink: 0; }
.form__success.show { display: flex; }

/* Footer */
.footer {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 4rem;
  padding: 4rem 2rem 3rem;
}

.footer__brand .nav__logo { display: inline-block; margin-bottom: .85rem; }
.footer__brand p { font-size: .875rem; color: var(--text-2); line-height: 1.75; }

.footer__links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }

.footer__col h3 {
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-2);
  margin-bottom: 1.1rem;
}

.footer__col ul { display: flex; flex-direction: column; gap: .6rem; }
.footer__col a { font-size: .875rem; color: var(--text-2); transition: color var(--transition); }
.footer__col a:hover { color: var(--text); }

.footer__bottom { border-top: 1px solid var(--border); }
.footer__bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
  font-size: .8rem;
  color: var(--text-2);
}

/* Responsive */
@media (max-width: 1100px) {
  .process__steps--5 { grid-template-columns: repeat(3, 1fr); }
  .process__steps--5::before { display: none; }
}

@media (max-width: 1024px) {
  .services__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .why__grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: 5rem 0; }

  .nav__list {
    position: fixed;
    top: 0; right: 0;
    width: 280px;
    max-width: 80vw;
    height: 100vh;
    background: var(--bg);
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    padding: 2rem;
    transform: translateX(100%);
    transition: transform .3s ease;
    border-left: 1px solid var(--border);
    box-shadow: -8px 0 32px rgba(0,0,0,.06);
  }
  .nav__list.open { transform: translateX(0); }
  .nav__toggle { display: flex; }

  .what__grid { grid-template-columns: minmax(0, 1fr); gap: 3rem; }
  .about__badge { bottom: -1rem; right: 0; }
  .what__text { padding: 0; }
  .services__grid { grid-template-columns: minmax(0, 1fr); }
  .process__steps--5 { grid-template-columns: 1fr 1fr; }
  .forwho__grid, .contact__grid { grid-template-columns: 1fr; gap: 3rem; }
  .form__row { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .footer__bottom .container { flex-direction: column; gap: .5rem; text-align: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 1.25rem; }
  .hero__actions { flex-direction: column; align-items: flex-start; }
  .process__steps--5 { grid-template-columns: 1fr; }
  .footer__links { grid-template-columns: 1fr 1fr; }
}

/* motywy */
[data-theme="ciemny"] .btn--primary,
[data-theme="ciemny"] .nav__link--cta,
[data-theme="ciemny"] .nav__link--cta:hover,
[data-theme="ciemny"] .about__badge {
  color: #363636;
  text-shadow: none;
}

[data-theme="ciemny"] {
  --bg:                   #18181b;
  --bg-2:                 #27272a;
  --bg-3:                 #3f3f46;
  --surface:              #27272a;
  --surface-2:            #3f3f46;
  --border:               rgba(255,255,255,.1);
  --accent:               #ef4545;
  --accent-2:             #f87171;
  --accent-dark:          #dc2626;
  --accent-subtle:        rgba(239,68,68,.12);
  --accent-subtle-border: rgba(239,68,68,.22);
  --accent-border:        rgba(239,68,68,.35);
  --text:                 #fafafa;
  --text-2:               #a1a1aa;
  --text-3:               #52525b;
  --header-bg:            rgba(24,24,27,.93);
  --shadow:               0 1px 3px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.25);
  --shadow-lg:            0 4px 32px rgba(0,0,0,.4);
}

/* przelacznik motywu w rogu */
.floating-controls {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 998;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: .75rem;
}

.theme-switcher,
.logo-switcher {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: .6rem;
}

.theme-switcher__btn {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 20px var(--accent-glow), 0 2px 8px rgba(0,0,0,.15);
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
  flex-shrink: 0;
}
.theme-switcher__btn:hover { transform: scale(1.1); background: var(--accent-dark); }

.theme-switcher__panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: .9rem;
  box-shadow: var(--shadow-lg);
  display: none;
  flex-direction: column;
  gap: .3rem;
  min-width: 170px;
  transform-origin: bottom right;
  animation: panelIn .18s ease;
}
.theme-switcher__panel.open { display: flex; }

@keyframes panelIn {
  from { opacity: 0; transform: scale(.92) translateY(6px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.theme-switcher__label {
  font-family: var(--mono);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-3);
  padding: 0 .4rem .35rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: .25rem;
}

.theme-option {
  display: flex;
  align-items: center;
  gap: .65rem;
  padding: .45rem .6rem;
  border-radius: var(--radius);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition);
  background: none;
  width: 100%;
  text-align: left;
  color: var(--text-2);
  font-size: .83rem;
  font-family: var(--font);
  font-weight: 500;
}
.theme-option:hover { background: var(--bg-2); color: var(--text); }
.theme-option.active {
  border-color: var(--accent-subtle-border);
  background: var(--accent-subtle);
  color: var(--accent);
}

.theme-option__swatch {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  flex-shrink: 0;
  border: 2px solid rgba(0,0,0,.12);
  box-shadow: inset 0 1px 2px rgba(255,255,255,.3);
}

.logo-preview {
  font-family: var(--mono);
  font-size: .62rem;
  color: var(--accent);
  min-width: 36px;
  flex-shrink: 0;
  line-height: 1;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--accent);
  color: var(--white);
  padding: .5rem 1.2rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .875rem;
  z-index: 9999;
  transition: top .2s ease;
}
.skip-link:focus { top: 1rem; }