:root {
  color-scheme: dark;
  --bg: #121211;
  --text: #f3f1ea;
  --muted: #d4d0c6;
  --line: #8a8478;
  --accent: #ffe14a;
  --fill: #f3f1ea;
  --ink: #14120e;
  --danger: #ffb4a8;
  --soft: #2a2926;
  font-family: system-ui, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
}

.wrap {
  display: grid;
  gap: 1.5rem;
  width: min(100%, 28rem);
  margin: 0 auto;
  padding: 1.25rem 1rem 3rem;
}

header,
section,
form,
label {
  display: grid;
  gap: 0.45rem;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 1.7rem;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

h2 {
  font-size: 1.05rem;
}

.help,
#link-status,
#clock {
  color: var(--muted);
}

#link-status[data-state="on"] {
  color: var(--accent);
}

#title {
  font-size: 1.3rem;
  font-weight: 650;
  line-height: 1.25;
}

.error {
  color: var(--danger);
  min-height: 0;
}

.error:empty {
  display: none;
}

label {
  font-size: 0.95rem;
  font-weight: 650;
}

input,
button {
  font: inherit;
  color: var(--text);
}

input[type="text"] {
  width: 100%;
  min-height: 3rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #1c1c1a;
  font-size: 1.05rem;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

input::placeholder {
  color: #c8c4ba;
}

button {
  min-height: 3rem;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: transparent;
  font-weight: 650;
}

button.primary {
  background: var(--fill);
  color: var(--ink);
  border-color: var(--fill);
}

button:active {
  transform: scale(0.98);
}

button:disabled,
input:disabled {
  opacity: 1;
  color: #d4d0c6;
  background: var(--soft);
  border-color: #3a3832;
}

button.primary:disabled {
  color: #d4d0c6;
  background: #3a3832;
  border-color: #3a3832;
}

input:focus-visible,
button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.row,
.transport,
.section-head {
  display: grid;
  gap: 0.6rem;
  align-items: center;
}

.row {
  grid-template-columns: 1.4fr 0.8fr;
}

.transport {
  grid-template-columns: 1fr 1.3fr 1fr;
}

.transport button {
  min-height: 4.25rem;
  font-size: 1.05rem;
}

.section-head {
  grid-template-columns: 1fr auto;
}

.queue {
  display: grid;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.queue button {
  width: 100%;
  text-align: start;
  line-height: 1.3;
}

.queue button[aria-current="true"] {
  border-color: var(--accent);
}

@media (prefers-reduced-motion: reduce) {
  button:active {
    transform: none;
  }
}