:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f3f5f7;
  color: #17212b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: linear-gradient(180deg, #eef2f5 0%, #f7f8fa 45%, #f3f5f7 100%);
}

button, input, textarea { font: inherit; }

.container {
  width: min(1040px, calc(100% - 32px));
  margin: 0 auto;
  padding: 42px 0 30px;
}

.panel {
  background: rgba(255, 255, 255, 0.97);
  border: 1px solid #dce2e7;
  border-radius: 16px;
  box-shadow: 0 10px 28px rgba(23, 33, 43, 0.07);
  padding: 28px;
  margin-bottom: 22px;
}

.hero {
  background: linear-gradient(135deg, #17324d, #284f69);
  color: #fff;
}

.hero h1 {
  margin: 2px 0 18px;
  font-size: clamp(2rem, 5vw, 3rem);
}

.hero p { margin: 7px 0; color: #e9f0f5; }
.eyebrow { margin: 0; text-transform: uppercase; letter-spacing: .1em; font-size: .75rem; font-weight: 800; color: #b8d4e4; }

label {
  display: block;
  margin: 0 0 8px;
  font-weight: 750;
}

label span { color: #687684; font-weight: 500; }

textarea, input {
  width: 100%;
  border: 1px solid #bec8d1;
  border-radius: 10px;
  background: #fff;
  color: #17212b;
  padding: 13px 14px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}

textarea { min-height: 120px; resize: vertical; }
textarea.compact { min-height: 94px; }

textarea:focus, input:focus {
  border-color: #245d78;
  box-shadow: 0 0 0 3px rgba(36, 93, 120, .13);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin: 20px 0;
}

small {
  display: block;
  color: #687684;
  line-height: 1.45;
  margin-top: 7px;
}

.primary-button {
  border: 0;
  border-radius: 10px;
  background: #173f5a;
  color: #fff;
  font-weight: 750;
  padding: 13px 20px;
  margin-top: 22px;
  cursor: pointer;
}

.primary-button:hover { background: #0f334c; }
.primary-button:disabled { opacity: .62; cursor: wait; }

.diagnostic-link { margin: 13px 0 0; color: #687684; font-size: .9rem; }
a { color: #175b7e; }

.status { min-height: 24px; margin: 6px 4px 18px; color: #52616d; }
.status.error { color: #a12626; font-weight: 650; }

.answer-heading { display: flex; align-items: center; gap: 12px; }
.answer-heading h2 { margin: 0; }
.answer-number {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: #e3edf3;
  color: #173f5a;
  font-weight: 800;
}

.response {
  margin: 22px 0;
  padding: 22px 24px;
  border-left: 4px solid #2d6e8f;
  background: #f5f8fa;
  border-radius: 8px;
  font-size: 1.08rem;
  line-height: 1.7;
}

.pass-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.pass-part {
  border: 1px solid #dce3e8;
  border-radius: 10px;
  padding: 15px;
  background: #fff;
}

.pass-part strong { color: #173f5a; }
.pass-part p { margin: 7px 0 0; line-height: 1.5; color: #3f4d58; }

.coach-details { margin-top: 18px; border-top: 1px solid #dce3e8; padding-top: 16px; }
.coach-details summary { cursor: pointer; font-weight: 750; color: #173f5a; }
.coach-content { display: grid; gap: 10px; margin-top: 14px; }

footer { text-align: center; color: #687684; font-size: .88rem; padding: 6px 12px 16px; }

@media (max-width: 720px) {
  .container { width: min(100% - 20px, 1040px); padding-top: 18px; }
  .panel { padding: 20px; border-radius: 13px; }
  .form-grid, .pass-grid { grid-template-columns: 1fr; }
  .response { padding: 18px; }
}