:root {
  --bg: #f3f6f4;
  --ink: #14231c;
  --muted: #5a6b62;
  --card: #ffffff;
  --line: #d5e0da;
  --accent: #0f766e;
  --accent-ink: #ffffff;
  --danger: #b42318;
  --ok: #067647;
  --shadow: 0 18px 50px rgba(20, 35, 28, 0.08);
  font-family: "Segoe UI", "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(1200px 500px at 10% -10%, #d9f3ec 0%, transparent 55%),
    linear-gradient(180deg, #eef5f1 0%, var(--bg) 40%, #e7eee9 100%);
  min-height: 100vh;
}
.wrap {
  width: min(960px, calc(100% - 2rem));
  margin: 2rem auto 3rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 1.5rem;
}
header { margin-bottom: 1.25rem; }
.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 700;
}
h1 { margin: 0.35rem 0; font-size: clamp(1.6rem, 3vw, 2.1rem); }
.lead, .hint, .muted { color: var(--muted); }
.lead { margin: 0; max-width: 46rem; }
section {
  margin-top: 1.4rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}
h2 { margin: 0 0 0.8rem; font-size: 1.05rem; }
.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem 1rem;
}
label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.92rem;
  font-weight: 600;
}
label.full { grid-column: 1 / -1; }
input, select, textarea, button {
  font: inherit;
}
input, select, textarea {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.7rem 0.8rem;
  background: #fbfffd;
  color: var(--ink);
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid rgba(15, 118, 110, 0.35);
  border-color: var(--accent);
}
.actions {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  align-items: center;
}
button {
  border: 0;
  border-radius: 999px;
  padding: 0.85rem 1.4rem;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
  cursor: pointer;
}
button:disabled { opacity: 0.65; cursor: wait; }
.msg { margin: 0; min-height: 1.2em; }
.msg.error { color: var(--danger); }
.msg.ok { color: var(--ok); }
.hint { min-height: 1.1em; font-weight: 500; }
dialog {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 0;
  width: min(420px, calc(100% - 2rem));
}
.dialog-box { padding: 1.2rem; }
menu { display: flex; justify-content: flex-end; gap: 0.5rem; padding: 0; margin: 1rem 0 0; }
@media (max-width: 720px) {
  .grid { grid-template-columns: 1fr; }
  .wrap { margin: 1rem auto 2rem; padding: 1rem; }
}