:root {
  --green: #0dab4c;
  --green-dark: #0a8f3f;
  --forest: #142e26;
  --sage: #426a5a;
  --stone: #f6f5f4;
  --ink: #212529;
  --muted: #5f6b66;
  --line: #e2e6e3;
  --danger: #c0392b;
  --radius: 14px;
  --shadow: 0 1px 2px rgb(20 46 38 / 8%), 0 8px 24px rgb(20 46 38 / 8%);
  --font: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font: 16px/1.5 var(--font);
  color: var(--ink);
  background: var(--stone);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; color: var(--forest); }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.05rem; }
p { margin: 0 0 1em; }
a { color: var(--green-dark); }
img { max-width: 100%; }
.muted { color: var(--muted); }
.small { font-size: .875rem; }

.icon { width: 22px; height: 22px; flex: none; }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: 46px; padding: .6rem 1.1rem;
  border: 1.5px solid var(--line); border-radius: 12px;
  background: #fff; color: var(--forest);
  font: 600 1rem/1.2 var(--font); text-decoration: none; cursor: pointer;
  transition: background .15s, border-color .15s, transform .05s;
}
.btn:active { transform: scale(.98); }
.btn:disabled { opacity: .55; cursor: default; }
.btn-primary { background: var(--green); border-color: var(--green); color: #fff; }
.btn-primary:hover { background: var(--green-dark); border-color: var(--green-dark); }
.btn-dark { background: var(--forest); border-color: var(--forest); color: #fff; }
.btn-danger { color: var(--danger); border-color: #f0c9c4; }
.btn-lg { min-height: 54px; font-size: 1.05rem; width: 100%; }
.btn-block { width: 100%; }
.btn-sm { min-height: 36px; padding: .35rem .8rem; font-size: .9rem; border-radius: 10px; }
.btn-link { background: none; border: 0; color: var(--green-dark); padding: .25rem; min-height: 0; font-weight: 600; }

/* ---------- forms ---------- */

.form { display: grid; gap: .9rem; }
.form label { display: grid; gap: .3rem; font-weight: 600; font-size: .9rem; color: var(--forest); }
.form input, .form textarea, .form select {
  width: 100%; padding: .7rem .8rem;
  border: 1.5px solid var(--line); border-radius: 10px;
  background: #fff; color: var(--ink);
  font: 400 1rem/1.4 var(--font);
}
.form input:focus, .form textarea:focus, .form select:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 3px rgb(13 171 76 / 18%); }
.form .check { display: flex; gap: .6rem; align-items: flex-start; font-weight: 400; }
.form .check input { width: 20px; height: 20px; margin-top: 2px; accent-color: var(--green); flex: none; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: .9rem; }
.form-error { color: var(--danger); background: #fdf0ee; padding: .6rem .8rem; border-radius: 10px; margin: 0; }
.hp { position: absolute !important; left: -9999px; height: 1px; overflow: hidden; }

.panel { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); padding: 1.25rem; }
.panel.success { border-top: 4px solid var(--green); }