:root {
  --bg: #eef2f7;
  --paper: #ffffff;
  --ink: #0b1220;
  --muted: #5a6578;
  --line: #d5dde8;
  --accent: #155eef;
  --accent-deep: #0b3db8;
  --ok: #0f8a5a;
  --err: #c43131;
  --radius: 0.85rem;
  --font-display: "Bricolage Grotesque", "Avenir Next", sans-serif;
  --font-ui: "Source Sans 3", "Helvetica Neue", sans-serif;
  --pad: clamp(1.1rem, 4vw, 2.8rem);
  --max: 72rem;
  --shadow: 0 1px 0 rgb(11 18 32 / 6%), 0 18px 40px rgb(11 18 32 / 8%);
}

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

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(900px 420px at 92% -8%, rgb(21 94 239 / 12%), transparent 55%),
    var(--bg);
  font-family: var(--font-ui);
  font-size: 1.05rem;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-wrap: pretty;
}

a { color: var(--accent); text-underline-offset: 0.16em; }
a:hover { color: var(--accent-deep); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 20;
  background: var(--ink);
  color: #fff;
  padding: 0.55rem 0.9rem;
  border-radius: 0.45rem;
}
.skip:focus { top: 1rem; }

.wrap {
  width: min(100% - 2 * var(--pad), var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 12;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem var(--pad);
  background: rgb(238 242 247 / 88%);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: inherit;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.brand img {
  width: 2rem;
  height: 2rem;
  border-radius: 0.5rem;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.15rem 1rem;
  font-size: 0.92rem;
  font-weight: 600;
}

.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover { color: var(--ink); }
.nav-cta { color: var(--accent) !important; }

.lang {
  margin-left: 0.15rem;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--muted);
  font: inherit;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.35rem 0.55rem;
  border-radius: 0.45rem;
  min-height: 40px;
  cursor: pointer;
}
.lang:hover { color: var(--ink); border-color: var(--ink); }

.hero, .floor, .band, .invite, .legal { scroll-margin-top: 4.5rem; }

.hero { padding: clamp(2.2rem, 6vw, 5rem) 0 clamp(2.6rem, 7vw, 5.2rem); }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(1.6rem, 4.5vw, 3.8rem);
  align-items: center;
}

.kicker {
  margin: 0 0 0.75rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.kicker-on-dark { color: #9ec0ff; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.04em;
  text-wrap: balance;
  margin: 0;
}

h1 {
  font-size: clamp(2.15rem, 5.4vw, 4.1rem);
  line-height: 1.02;
}

.lead {
  margin: 1.1rem 0 0;
  max-width: 36rem;
  color: var(--muted);
  font-size: clamp(1.02rem, 1.6vw, 1.18rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.6rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.7rem 1.15rem;
  border: 0;
  border-radius: 0.55rem;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition-property: transform, background-color, color;
  transition-duration: 0.15s;
  transition-timing-function: cubic-bezier(0.2, 0, 0, 1);
}
.btn:active { transform: scale(0.96); }

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-deep); color: #fff; }

.btn-ghost {
  background: #fff;
  color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--line);
}
.btn-ghost:hover { box-shadow: inset 0 0 0 1px var(--ink); color: var(--ink); }

.device {
  background: #0b1220;
  color: #e8eef8;
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow);
  min-height: 22rem;
}

.device-chrome {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.75rem 1rem;
  background: #151d2e;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.device-chrome span {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: #3a4760;
}
.device-chrome em { margin-left: auto; font-style: normal; color: #9aa8c2; }

.device-body { padding: 1.15rem 1.15rem 1.3rem; }

.device .pill {
  display: inline-block;
  margin-bottom: 0.45rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: rgb(21 94 239 / 22%);
  color: #b9d0ff;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.device-body > strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: -0.03em;
}

.device-body > p {
  margin: 0.35rem 0 1rem;
  color: #9aa8c2;
  font-size: 0.92rem;
}

.device .row {
  display: grid;
  grid-template-columns: 4.2rem 1fr auto;
  gap: 0.7rem;
  align-items: center;
  padding: 0.7rem 0;
  border-top: 1px solid #243049;
  font-size: 0.92rem;
}
.device .row span { color: #7f8eaa; font-weight: 700; font-variant-numeric: tabular-nums; }
.device .row b { font-weight: 650; }
.device .row i { font-style: normal; color: #9aa8c2; font-size: 0.8rem; }

.lock-line {
  margin-top: 1rem;
  padding-top: 0.85rem;
  border-top: 1px solid #243049;
  color: #7f8eaa;
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.floors { border-top: 1px solid var(--line); }

.floor {
  display: grid;
  grid-template-columns: 4.2rem 1fr;
  gap: 1.2rem;
  padding: clamp(1.8rem, 5vw, 3.4rem) 0;
  border-bottom: 1px solid var(--line);
}

.floor-nr {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  padding-top: 0.15rem;
}

.floor h2 {
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  margin-bottom: 0.5rem;
}

.floor p { margin: 0; max-width: 40rem; color: var(--muted); }

.points {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 1.2rem 0 0;
}

.point {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.05rem 1.1rem;
}

.point h3 { font-size: 1.05rem; margin-bottom: 0.25rem; }
.point p { font-size: 0.94rem; }

.mark {
  display: inline-block;
  margin-bottom: 0.35rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.band {
  background: var(--ink);
  color: #d7e0ee;
  padding: clamp(2.6rem, 6.5vw, 4.6rem) 0;
}

.band h2 {
  font-size: clamp(1.7rem, 3.2vw, 2.6rem);
  color: #fff;
}

.band p { max-width: 38rem; color: #a9b6cb; }

.band-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(1.4rem, 4vw, 3rem);
  align-items: center;
}

.lock { display: grid; gap: 0.6rem; margin: 0; padding: 0; list-style: none; }

.lock li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem;
  align-items: start;
  background: #151d2e;
  border-radius: 0.75rem;
  padding: 0.9rem 1rem;
}

.lock strong { display: block; font-size: 0.95rem; color: #fff; }
.lock span { color: #a9b6cb; font-size: 0.94rem; }

.dot {
  width: 0.45rem;
  height: 0.45rem;
  margin-top: 0.5rem;
  border-radius: 50%;
  background: var(--accent);
}

.invite { padding: clamp(2.6rem, 6.5vw, 4.6rem) 0; }

.invite-card {
  display: grid;
  grid-template-columns: 1.35fr auto;
  gap: 1.6rem;
  align-items: center;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: clamp(1.3rem, 3vw, 2rem);
}

.invite h2 { font-size: clamp(1.5rem, 2.5vw, 2.1rem); margin-bottom: 0.45rem; }
.invite p { margin: 0; color: var(--muted); max-width: 36rem; }

.site-footer {
  padding: 1.2rem var(--pad) 2rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.7rem 1.4rem;
  font-size: 0.86rem;
  color: var(--muted);
}
.site-footer a { color: inherit; }

.legal { padding: 3rem 0 5rem; }
.legal .wrap { max-width: 42rem; }
.legal h1 { font-size: clamp(1.9rem, 3.6vw, 2.7rem); margin-bottom: 0.35rem; }
.meta { color: var(--muted); font-size: 0.9rem; margin-bottom: 1.5rem; }
.legal h2 { font-size: 1.2rem; margin: 1.7rem 0 0.45rem; }
.legal p, .legal li { color: var(--muted); }

.join { padding: clamp(2.2rem, 6vw, 4.2rem) 0 4rem; }

.join-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: clamp(1.3rem, 3vw, 2rem);
  max-width: 34rem;
}

.join-card h1 { font-size: clamp(1.6rem, 2.8vw, 2.3rem); margin: 0 0 0.45rem; }
.join-card > p { color: var(--muted); margin: 0 0 1.2rem; }

.join-card label {
  display: block;
  margin: 0.9rem 0 0.3rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.join-card input,
.join-card select {
  width: 100%;
  font: inherit;
  font-size: 1.02rem;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 0.55rem;
  background: #fff;
  color: var(--ink);
}

.join-card .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.25rem;
}

.join-card .msg { margin: 0.9rem 0 0; font-size: 0.95rem; }
.join-card .msg.ok { color: var(--ok); }
.join-card .msg.err { color: var(--err); }

[hidden] { display: none !important; }
html[lang="en"] [data-de] { display: none !important; }
html[lang="de"] [data-en] { display: none !important; }

@media (max-width: 860px) {
  .hero-grid, .band-grid, .invite-card, .points { grid-template-columns: 1fr; }
  .floor { grid-template-columns: 1fr; gap: 0.25rem; }
}

@media (max-width: 560px) {
  .nav a:not(.lang):not(.nav-cta) { display: none; }
}