:root {
  --bg: #ffffff;
  --text: #0b0f14;
  --muted: #3b4654;
  --border: #d7dde6;
  --btn: #0b0f14;
  --btnText: #ffffff;
  --max: 980px;
  --pad: 20px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
}

a { color: inherit; text-decoration: underline; text-underline-offset: 3px; }
a:hover { opacity: 0.85; }

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad);
  width: 100%;
}

.header {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 12px;
  min-height: 50px;
}

.brand {
  font-weight: 650;
  letter-spacing: 0.2px;
  text-decoration: none;
  display: flex;
  align-items: center;
  min-width: 0;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--btn);
  background: var(--btn);
  color: var(--btnText);
  padding: 10px 12px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  white-space: normal;
  flex-wrap: wrap;
}

.cta-btn:focus { outline: 2px solid #7aa7ff; outline-offset: 2px; }

.main {
  padding: 28px 0 40px 0;
}

.h1 {
  font-size: 28px;
  margin: 0 0 10px 0;
  letter-spacing: 0.2px;
}

.h2 {
  font-size: 18px;
  margin: 26px 0 10px 0;
}

.kicker {
  color: var(--muted);
  font-weight: 600;
  margin: 0 0 6px 0;
}

.subhead {
  font-size: 18px;
  margin: 0 0 6px 0;
}

.tagline {
  color: var(--muted);
  margin: 0 0 16px 0;
  font-weight: 600;
}

.p {
  margin: 0 0 14px 0;
  color: var(--text);
}

.muted { color: var(--muted); }

.hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 26px 0;
}

.list {
  margin: 0;
  padding-left: 18px;
}

.list li { margin: 6px 0; }

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
}

.inline-cta {
  margin-top: 18px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 18px 0 26px 0;
  text-align: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  font-size: 14px;
}

.footer-links a {
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1px;
}

.small {
  font-size: 12.5px;
  color: var(--muted);
  margin-top: 10px;
}

.form {
  display: grid;
  gap: 12px;
  max-width: 680px;
}

.label {
  font-weight: 600;
  margin-bottom: 6px;
  display: block;
}

.input, .textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 10px;
  font: inherit;
  background: #fff;
}

.textarea { min-height: 140px; resize: vertical; }

.help {
  font-size: 12.5px;
  color: var(--muted);
  margin-top: 6px;
}

.error {
  border-color: #b42318;
}

.error-text {
  color: #b42318;
  font-size: 12.5px;
  margin-top: 6px;
}

.period-list {
  display: grid;
  gap: 10px;
  max-width: 420px;
  width: 100%;
}

.period-link {
  display: block;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 12px;
  text-decoration: none;
}

.period-link:hover { background: #f6f7f9; }

@media (max-width: 640px) {
  :root {
    --pad: 16px;
  }
  
  .h1 {
    font-size: 22px;
    margin-bottom: 8px;
  }
  
  .h2 {
    font-size: 16px;
    margin: 20px 0 8px 0;
  }
  
  .hr {
    margin: 18px 0;
  }
  
  .header-inner {
    flex-wrap: wrap;
    gap: 10px;
  }
  
  .brand {
    flex: 1;
    min-width: 0;
  }
  
  .cta-btn {
    padding: 10px 12px;
    font-size: 14px;
    flex-shrink: 0;
    min-height: 40px;
    min-width: 40px;
  }
  
  .main {
    padding: 20px 0 30px 0;
  }
  
  .p {
    font-size: 15px;
    margin: 0 0 12px 0;
  }
  
  .footer-links {
    gap: 8px 12px;
    font-size: 13px;
    margin-bottom: 8px;
  }
  
  .small {
    font-size: 12px;
    margin-top: 8px;
  }
  
  .list {
    padding-left: 16px;
  }
  
  .list li {
    margin: 5px 0;
    font-size: 15px;
  }
  
  .card {
    padding: 12px;
  }
  
  .form {
    gap: 10px;
  }
  
  .input, .textarea {
    padding: 10px 10px;
    font-size: 16px;
    min-height: 44px;
  }
  
  .label {
    font-size: 14px;
    margin-bottom: 5px;
  }
  
  .inline-cta {
    margin-top: 16px;
    gap: 10px;
  }
  
  .kicker {
    font-size: 13px;
  }
  
  .subhead {
    font-size: 16px;
  }
  
  .period-list {
    max-width: 100%;
  }
  
  .period-link {
    padding: 14px 12px;
    min-height: 44px;
    display: flex;
    align-items: center;
  }
}

@media (min-width: 641px) and (max-width: 859px) {
  .h1 {
    font-size: 26px;
  }
  
  .h2 {
    font-size: 17px;
  }
  
  .header-inner {
    gap: 12px;
  }
  
  .cta-btn {
    padding: 10px 14px;
  }
}

@media (min-width: 860px) {
  .h1 { font-size: 34px; }
  .grid { grid-template-columns: 1fr 1fr; }
  .header-inner {
    flex-wrap: nowrap;
  }
}