*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --accent:     #3f96c8;
  --accent-light:#e8f5f8;
  --bg:         #f5f8fb;
  --surface:    #ffffff;
  --border:     #cadbe6;
  --text:       #183b56;
  --text-muted: #54708a;
  --radius:     12px;
  --radius-sm:  8px;
  --shadow:     0 1px 2px rgba(15,35,58,.05), 0 12px 28px rgba(15,35,58,.06);
}
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: linear-gradient(180deg, #eef6f7 0, var(--bg) 280px);
  color: var(--text);
  font-size: 14px;
  line-height: 1.65;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
}
.content {
  flex: 1;
  max-width: 620px;
  margin: 32px auto;
  padding: 0 16px 40px;
  width: 100%;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 3px solid #59b7c6;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px 36px;
}
h2 { font-size: 18px; font-weight: 700; color: #12638f; margin-bottom: 12px; }
p { margin-bottom: 12px; }
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 5px;
  color: var(--text);
}
.form-group .optional { font-weight: 400; color: var(--text-muted); }
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
  resize: vertical;
  line-height: 1.5;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(63,150,200,.15);
}
.char-count {
  text-align: right;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 3px;
}
.btn-submit {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.btn-submit:hover { background: #2d7fb0; }
.btn-submit:disabled { opacity: .5; cursor: not-allowed; }
.form-msg { margin-top: 12px; font-size: 13px; }
.form-msg.success { color: #16a34a; }
.form-msg.error { color: #dc2626; }
.alt-contact { margin-top: 20px; font-size: 13px; color: var(--text-muted); }
.alt-contact a { color: #12638f; }
.dse-hint { font-size: 12px; color: var(--text-muted); margin-bottom: 0; }
.dse-hint a { color: var(--accent); }
footer {
  background: #143452;
  padding: 12px 24px;
  padding-bottom: calc(12px + env(safe-area-inset-bottom));
  text-align: center;
  font-size: 12px;
  color: #7ab8d9;
  flex-shrink: 0;
}
footer a { color: #a8c8e0; text-decoration: none; }
footer a:hover { color: #ffffff; }
@media (max-width: 600px) {
  .card { padding: 18px 16px; }
  .content { margin: 16px auto; }
}