:root {
  --bg: #16151A;
  --cream: #FBF6F0;
  --muted: #9C968F;
  --spark: #F05515;
}

* {
  margin: 0;
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  background:
    radial-gradient(ellipse 60% 50% at 50% 45%, rgba(240, 85, 21, 0.07), transparent 70%),
    var(--bg);
  color: var(--cream);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  text-align: center;
}

h1 {
  font-size: 0;
}

h1 img {
  display: block;
  width: min(420px, 75vw);
  height: auto;
  margin: 0 auto;
}

.tagline {
  margin-top: 2.25rem;
  font-size: clamp(0.8rem, 2.6vw, 1rem);
  font-weight: 500;
  letter-spacing: 0.32em;
  padding-left: 0.32em; /* wyrównuje odstęp po ostatniej literze */
  text-transform: uppercase;
  color: var(--muted);
}

.tagline::after {
  content: "";
  display: block;
  width: 2.5rem;
  height: 2px;
  margin: 1.5rem auto 0;
  background: var(--spark);
}

.contact {
  margin-top: 1.5rem;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  color: var(--cream);
}

.contact summary {
  display: inline-block;
  list-style: none;
  cursor: pointer;
  color: var(--muted);
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

.contact summary::-webkit-details-marker {
  display: none;
}

.contact summary:hover,
.contact summary:focus-visible {
  color: var(--cream);
}

.contact summary:focus-visible {
  outline: 2px solid var(--spark);
  outline-offset: 4px;
}

/* po kliknięciu przycisk znika, zostaje sam adres */
.contact[open] summary {
  display: none;
}