:root {
  color: #1f2933;
  background: #f7f8f6;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  line-height: 1.6;
  font-synthesis: none;
}

.secondary-button {
  margin-top: 1rem;
  padding: 0.65rem 1rem;
  border: 1px solid #9aabb8;
  border-radius: 0.5rem;
  color: #17212b;
  background: #fff;
  cursor: pointer;
}

.secondary-button:hover {
  background: #eef4f8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
}

a {
  color: #28616b;
  text-underline-offset: 0.2em;
}

a:hover {
  color: #1c4750;
}

button {
  font: inherit;
}

input {
  accent-color: #28616b;
}

input:focus-visible {
  outline: 3px solid #d39b52;
  outline-offset: 2px;
}

.page-shell {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: clamp(1rem, 4vw, 3rem);
}

.panel {
  width: min(100%, 56rem);
  padding: clamp(1.5rem, 5vw, 4rem);
  border: 1px solid #e1e7e4;
  border-radius: 1.25rem;
  background: #fff;
  box-shadow: 0 1rem 3rem rgb(31 41 51 / 7%);
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: #28616b;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  color: #1f2933;
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.15;
}

h2 {
  margin: 0.35rem 0 0.5rem;
  color: #1f2933;
  font-size: 1rem;
  line-height: 1.3;
}

p {
  max-width: 65ch;
}

.muted {
  color: #62716f;
}

.intro-header {
  max-width: 42rem;
}

.intro-lead {
  margin: 1.25rem 0 0;
  color: #526361;
  font-size: clamp(1.05rem, 2vw, 1.2rem);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 3rem 0;
}

.info-card {
  padding: 1.25rem;
  border-top: 2px solid #c9dcd7;
  background: #f7f9f7;
}

.info-card p:last-child {
  margin-bottom: 0;
  color: #62716f;
  font-size: 0.95rem;
}

.info-label {
  margin: 0;
  color: #28616b;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.start-section {
  padding-top: 1.75rem;
  border-top: 1px solid #e1e7e4;
}

.section-heading {
  margin-bottom: 1rem;
}

.section-heading h2 {
  font-size: 1.35rem;
}

.confirmation-list {
  display: grid;
  gap: 0.7rem;
}

.check-row {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 0.8rem 1rem;
  border: 1px solid #dce5e1;
  border-radius: 0.6rem;
  background: #fbfcfb;
  cursor: pointer;
}

.check-row:hover {
  border-color: #aac9c1;
}

.check-row input {
  flex: 0 0 auto;
  width: 1.1rem;
  height: 1.1rem;
  margin: 0.2rem 0 0;
}

.gender-section {
  margin-top: 2rem;
  padding-top: 1.75rem;
  border-top: 1px solid #e1e7e4;
}

.gender-section legend {
  margin-bottom: 0.25rem;
  font-size: 1.05rem;
}

.gender-section .muted {
  margin-top: 0;
  font-size: 0.9rem;
}

.gender-options {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.6rem;
}

.option-chip {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid #dce5e1;
  border-radius: 0.5rem;
  color: #40514f;
  cursor: pointer;
  font-size: 0.9rem;
}

.option-chip:hover {
  border-color: #aac9c1;
}

.primary-button,
.emotion-button {
  min-height: 3rem;
  border: 2px solid transparent;
  border-radius: 0.5rem;
  cursor: pointer;
  font-weight: 700;
}

.primary-button {
  margin-top: 2rem;
  padding: 0.8rem 1.4rem;
  color: #fff;
  background: #28616b;
}

.primary-button:hover {
  background: #1c4750;
}

.primary-button:disabled,
.secondary-button:disabled,
.emotion-button:disabled {
  cursor: wait;
  opacity: 0.65;
}

.primary-button:focus-visible,
.secondary-button:focus-visible,
.emotion-button:focus-visible {
  outline: 3px solid #d39b52;
  outline-offset: 3px;
}

.study-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.progress-label {
  flex: 0 0 auto;
  margin: 0;
  color: #536575;
  font-weight: 700;
  white-space: nowrap;
}

.color-swatch {
  width: 100%;
  min-height: clamp(12rem, 42vw, 20rem);
  margin: 1.5rem 0;
  border: 1px solid rgb(23 33 43 / 28%);
  border-radius: 0.5rem;
}

fieldset {
  padding: 0;
  border: 0;
}

legend {
  margin-bottom: 0.75rem;
  font-weight: 700;
}

.emotion-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.emotion-button {
  padding: 0.75rem;
  border-color: #b8c5cf;
  color: #17212b;
  background: #fff;
}

.emotion-button:hover {
  border-color: #245b80;
  background: #eef4f8;
}

.message {
  min-height: 1.5rem;
  margin: 1rem 0 0;
}

.error {
  color: #a32929;
  font-weight: 600;
}

.global-error {
  width: min(100%, 46rem);
  margin: 1rem 0 0;
}

[hidden] {
  display: none !important;
}

@media (min-width: 40rem) {
  .emotion-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 39rem) {
  .info-grid,
  .gender-options {
    grid-template-columns: 1fr;
  }

  .info-grid {
    margin: 2rem 0;
  }

  .study-header {
    display: block;
  }

  .progress-label {
    margin-top: 0.75rem;
  }
}