:root {
  --bg-0: #07141c;
  --bg-1: #102736;
  --card: rgba(8, 21, 30, 0.8);
  --card-border: rgba(117, 177, 194, 0.25);
  --text-strong: #e5f6ff;
  --text-soft: #9ec0ce;
  --accent: #f8a542;
  --accent-soft: #ffd08d;
  --focus: #58c4dd;
  --danger: #ff7f7f;
  --ok: #8cf4c3;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", sans-serif;
  color: var(--text-strong);
  background:
    radial-gradient(1300px 700px at 10% -10%, #1f4c67 0%, transparent 45%),
    radial-gradient(1200px 600px at 90% 120%, #5d3f20 0%, transparent 45%),
    linear-gradient(150deg, var(--bg-0), var(--bg-1));
  padding: 28px 18px;
}

.bg-glow {
  position: fixed;
  width: 260px;
  height: 260px;
  border-radius: 999px;
  filter: blur(70px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.5;
}

.bg-glow-left {
  background: #2d8dac;
  top: -80px;
  left: -50px;
}

.bg-glow-right {
  background: #c67b20;
  bottom: -80px;
  right: -40px;
}

.layout {
  position: relative;
  z-index: 1;
  width: min(980px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 12px 45px rgba(0, 0, 0, 0.25);
}

.tag {
  margin: 0;
  display: inline-block;
  background: rgba(248, 165, 66, 0.14);
  border: 1px solid rgba(248, 165, 66, 0.45);
  color: var(--accent-soft);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 12px 0 10px;
  line-height: 1.1;
  font-family: "Chakra Petch", sans-serif;
  font-size: clamp(28px, 5vw, 48px);
}

.intro p {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.7;
  max-width: 62ch;
}

.installer {
  display: grid;
  gap: 10px;
}

label {
  color: var(--text-soft);
  font-size: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

input {
  width: 100%;
  border: 1px solid rgba(106, 150, 167, 0.4);
  background: rgba(9, 19, 28, 0.75);
  color: var(--text-strong);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus {
  border-color: var(--focus);
  box-shadow: 0 0 0 3px rgba(88, 196, 221, 0.2);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 6px;
}

.btn {
  border: 0;
  border-radius: 12px;
  padding: 12px 16px;
  font-family: "Chakra Petch", sans-serif;
  font-weight: 700;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: transform 0.15s ease, filter 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
  filter: brightness(1.06);
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  transform: none;
  filter: none;
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  color: #051015;
  background: linear-gradient(90deg, var(--accent), #ffba68);
}

.btn-ghost {
  color: var(--text-strong);
  border: 1px solid rgba(117, 177, 194, 0.5);
  background: rgba(19, 41, 57, 0.5);
}

.status {
  margin: 2px 0 0;
  min-height: 22px;
  font-size: 14px;
  color: var(--text-soft);
}

.hint {
  margin: 2px 0 0;
  min-height: 22px;
  font-size: 13px;
  color: var(--accent-soft);
}

.status.ok {
  color: var(--ok);
}

.status.warn {
  color: var(--accent-soft);
}

.status.error {
  color: var(--danger);
}

@media (min-width: 920px) {
  .layout {
    grid-template-columns: 1.05fr 1fr;
    align-items: start;
    gap: 18px;
  }

  .intro,
  .installer {
    min-height: 380px;
  }
}