* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Trebuchet MS", "Segoe UI", Tahoma, sans-serif;
  color: var(--ink-1);
  line-height: 1.45;
  background:
    radial-gradient(circle at 12% -10%, rgba(201, 139, 47, 0.18), transparent 25%),
    radial-gradient(circle at 88% -20%, rgba(63, 95, 134, 0.18), transparent 30%),
    linear-gradient(180deg, var(--paper-1), var(--paper-2));
  min-height: 100vh;
}

.container {
  width: min(1100px, 92vw);
  margin: 0 auto;
}

.site-header {
  padding: 2.8rem 0 2rem;
}

.site-header.compact {
  padding-bottom: 1.2rem;
}

.kicker {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.74rem;
  color: var(--ink-2);
  margin: 0 0 0.5rem;
}

h1,
h2,
h3 {
  font-family: "Palatino Linotype", "Book Antiqua", Palatino, serif;
  line-height: 1.2;
}

h1 {
  margin: 0 0 0.6rem;
  font-size: clamp(1.8rem, 2.3vw + 1rem, 3rem);
}

h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.2rem, 1.2vw + 0.9rem, 1.7rem);
}

.subtitle {
  margin: 0;
  color: var(--ink-2);
  max-width: 70ch;
}

.code-legend {
  margin-top: 1rem;
  color: var(--ink-2);
}

code {
  font-family: Consolas, "Courier New", monospace;
  background: rgba(31, 42, 51, 0.08);
  border: 1px solid rgba(31, 42, 51, 0.14);
  border-radius: 0.45rem;
  padding: 0.1rem 0.35rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1.15rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.1rem;
}

.helper-text {
  margin: 0.7rem 0 0;
  color: var(--ink-2);
  font-size: 0.92rem;
}

label {
  font-weight: 700;
}

input,
select,
button {
  font: inherit;
}

input[type="search"],
select {
  width: 100%;
  padding: 0.72rem 0.82rem;
  border-radius: 0.72rem;
  border: 1px solid var(--line);
  background: #fff;
}

button {
  border: 1px solid transparent;
  border-radius: 0.62rem;
  padding: 0.55rem 0.8rem;
  background: var(--ink-1);
  color: #fff;
  cursor: pointer;
  transition: transform 0.18s ease, opacity 0.18s ease;
}

button:hover {
  transform: translateY(-1px);
  opacity: 0.94;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(42, 127, 158, 0.42);
  outline-offset: 2px;
}

.site-footer {
  padding: 1rem 0 2rem;
  color: var(--ink-2);
}

.back-link {
  display: inline-block;
  margin-top: 0.8rem;
  color: var(--ink-1);
}

@media (max-width: 760px) {
  .panel {
    padding: 0.95rem;
  }
}