:root {
  --main-color: #245c4f;
  --sub-color: #4f8a6b;
  --accent-color: #8fffd1;

  --text-color: #2d3436;
  --muted-color: #6f7b77;

  --bg-color: #f7faf8;
  --white: #ffffff;

  --border-color: #dce7e2;

  --shadow: 0 18px 50px rgba(36, 92, 79, 0.1);
}

/* =========================================
      Reset 
========================================= */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;

  font-family:
    -apple-system, BlinkMacSystemFont, "Noto Sans JP",
    "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;

  color: var(--text-color);
  background: var(--bg-color);

  line-height: 1.8;
}

button,
a {
  font-family: inherit;
}

/* ========================================= 
      Diagnosis Wrapper 
  ========================================= */

.diagnosis {
  min-height: 100vh;

  display: flex;
  align-items: center;
  justify-content: center;

  padding: 100px 20px 60px;
}

.diagnosis-container {
  width: 100%;
  max-width: 900px;
}

/* ========================================= 
      Header
========================================= */

.diagnosis-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;

  width: 100%;
  height: 70px;

  display: flex;
  align-items: center;
  justify-content: space-between;

  padding: 0 40px;

  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
}

/* Logo */

.diagnosis-logo {
  color: var(--main-color);

  font-size: 1rem;
  font-weight: 800;

  letter-spacing: 0.12em;
  text-decoration: none;

  transition: opacity 0.3s ease;
}

.diagnosis-logo:hover {
  opacity: 0.7;
}

/* Label */

.diagnosis-label {
  color: var(--muted-color);

  font-size: 0.75rem;
  font-weight: 600;

  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ========================================= 
      Screen 
========================================= */

.diagnosis-screen {
  display: none;
}

.diagnosis-screen.active {
  display: block;
}

/* ========================================= 
      Start Screen
========================================= */

.diagnosis-start {
  text-align: center;
  padding: 80px 50px;
  background: var(--white);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.diagnosis-start .eyebrow {
  display: inline-block;
  margin-bottom: 20px;
  color: var(--sub-color);
  font-size: 0.8rem;
  font-weight: 700;

  letter-spacing: 0.18em;
}

.diagnosis-start .lead {
  margin: 28px 0 0;

  color: var(--muted-color);
  font-size: 1rem;
}

/* =========================================
      Start Image
========================================= */

.start-image {
  max-width: 460px;
  margin: 0 auto 38px;

  margin-top: 2rem;
}

.start-image img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 18px;

  box-shadow: 0 12px 35px rgba(36, 92, 79, 0.08);
}

/* ========================================= 
      Start Button 
========================================= */

.diagnosis-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 18px;

  min-width: 260px;
  margin-top: 42px;
  padding: 17px 34px;

  border: 1px solid transparent;
  border-radius: 999px;

  background: var(--main-color);
  color: var(--white);

  font-size: 0.95rem;
  font-weight: 700;

  letter-spacing: 0.08em;
  text-decoration: none;
  cursor: pointer;

  transition:
    transform 0.3s ease,
    background 0.3s ease,
    box-shadow 0.3s ease;
}

.diagnosis-button span {
  font-size: 1.1rem;
  transition: transform 0.3s ease;
}

.diagnosis-button:hover {
  transform: translateY(-3px);
  background: #2e6d5f;
  box-shadow: 0 12px 30px rgba(36, 92, 79, 0.2);
}

.diagnosis-button:hover span {
  transform: translateX(4px);
}

/* ========================================= 
      Question Screen
========================================= */
.diagnosis-question {
  padding: 55px 50px;
  background: var(--white);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

/* Progress */

.progress-area {
  margin-bottom: 42px;
}

.progress-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  color: var(--muted-color);
  font-size: 0.8rem;
}

.progress-bar {
  width: 100%;
  height: 5px;

  overflow: hidden;
  border-radius: 999px;
  background: #e8efec;
}

.progress-bar > span {
  display: block;

  width: 0;
  height: 100%;

  border-radius: inherit;
  background: var(--main-color);

  transition: width 0.4s ease;
}

/* Question */

.question-category {
  display: block;
  margin-bottom: 10px;
  color: var(--sub-color);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.15em;
}

#question-text {
  margin: 0 0 36px;
  color: var(--text-color);
  font-size: clamp(1.35rem, 3vw, 1.8rem);
  line-height: 1.6;
}

/* ========================================= 
      Diagnosis Choices
========================================= */

.diagnosis-choices {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.diagnosis-choice {
  position: relative;
  min-height: 72px;
  padding: 18px 22px;
  border: 1px solid var(--border-color);
  border-radius: 14px;
  background: var(--white);
  color: var(--text-color);
  font-size: 0.95rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition:
    border-color 0.25s ease,
    background 0.25s ease,
    color 0.25s ease,
    transform 0.25s ease,
    box-shadow 0.25s ease;
}

/* 番号 */

.diagnosis-choice-number {
  display: inline-block;

  width: 34px;

  color: var(--sub-color);

  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

/* テキスト */

.diagnosis-choice-text {
  color: var(--text-color);
}

/* 矢印 */

.diagnosis-choice-arrow {
  position: absolute;

  right: 20px;
  top: 50%;

  color: var(--sub-color);

  opacity: 0;

  transform: translateY(-50%);

  transition:
    opacity 0.25s ease,
    transform 0.25s ease;
}

/* Hover */

.diagnosis-choice:hover {
  border-color: var(--sub-color);
  background: #f3f8f5;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(36, 92, 79, 0.08);
}

.diagnosis-choice:hover .diagnosis-choice-arrow {
  opacity: 1;

  transform: translate(4px, -50%);
}

/* 選択時 */

.diagnosis-choice:active {
  transform: translateY(0);
}

/* ========================================= 
      Result
========================================= */

.diagnosis-result {
  padding: 60px 50px;
  background: var(--white);

  border-radius: 24px;
  box-shadow: var(--shadow);
  text-align: center;
}

.result-eyebrow {
  display: block;
  margin-bottom: 18px;
  color: var(--sub-color);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.result-title {
  margin: 0;
  color: var(--main-color);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.5;
}

/* =========================================
      Result Image
========================================= */

.diagnosis-result-image {
  max-width: 360px;

  margin: 0 auto 30px;

  overflow: hidden;
  border-radius: 18px;
}

.diagnosis-result-image img {
  display: block;

  width: 100%;
  height: auto;
}

/* ========================================= 
      Result Icon
========================================= */

.result-icon {
  width: 120px;
  height: 120px;

  margin: 30px auto;
  display: flex;
  align-items: center;
  justify-content: center;

  border-radius: 50%;
  background: #edf6f1;
  color: var(--main-color);
  font-size: 3rem;
}
/* ========================================= 
      Result Text
========================================= */

#result-description {
  max-width: 650px;
  margin: 0 auto;
  color: var(--muted-color);
  text-align: left;
}

/* =========================================
      Recommendation
========================================= */

.diagnosis-recommendation {
  max-width: 650px;
  margin: 35px auto 0;
  padding: 22px 26px;

  border-left: 4px solid var(--sub-color);
  background: #f5f9f7;

  text-align: left;
}

.recommendation-label {
  display: block;
  margin-bottom: 8px;

  color: var(--sub-color);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.diagnosis-recommendation p {
  margin: 0;

  color: var(--text-color);
  font-size: 0.9rem;
  line-height: 1.8;
}

/* ========================================= 
      Result Graph
========================================= */

.result-chart {
  max-width: 650px;
  margin: 45px auto 0;
  text-align: left;
}
.result-chart-title {
  margin-bottom: 18px;
  color: var(--main-color);
  font-size: 0.9rem;
  font-weight: 700;
}
.result-score {
  margin-bottom: 14px;
}
.result-score-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
  font-size: 0.78rem;
  color: var(--muted-color);
}
.result-score-bar {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: #e8efec;
}
.result-score-bar span {
  display: block;
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--main-color);
  transition: width 1.8s ease;
}
/* ========================================= 
      Result Contact
========================================= */

.result-contact {
  margin-top: 50px;
  padding-top: 40px;

  border-top: 1px solid var(--border-color);
}

.result-contact p {
  margin: 0;
  color: var(--muted-color);
  font-size: 0.9rem;
}

/* ========================================= 
      Secondary Button
========================================= */

.diagnosis-button.secondary {
  background: transparent;
  border-color: var(--main-color);
  color: var(--main-color);
}

.diagnosis-button.secondary:hover {
  background: var(--main-color);
  color: var(--white);
}

/* =========================================
      Result Skills
========================================= */

.diagnosis-result-skills {
  max-width: 650px;
  margin: 35px auto 0;
  text-align: left;
}

.diagnosis-skills-label {
  display: block;
  margin-bottom: 12px;

  color: var(--main-color);
  font-size: 0.9rem;
  font-weight: 700;
}

.diagnosis-result-skills ul {
  margin: 0;
  padding-left: 1.4em;
  text-align: left;
}

.diagnosis-result-skills li {
  margin-bottom: 6px;
  color: var(--text-color);
  font-size: 0.9rem;
  line-height: 1.7;
}

.diagnosis-result-skills li:last-child {
  margin-bottom: 0;
}

/* ========================================= 
      Service Link
========================================= */

.result-service {
  margin-top: 42px;
}

.result-service .diagnosis-button {
  margin-top: 0;
}

/* =========================================
      Related Course
========================================= */

.related-area {
  max-width: 650px;
  margin: 50px auto 0;
  padding-top: 35px;

  border-top: 1px solid var(--border-color);

  text-align: center;
}

.related-label {
  display: block;
  margin-bottom: 10px;

  color: var(--sub-color);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.related-area h3 {
  margin: 0 0 18px;

  color: var(--text-color);
  font-size: 1.05rem;
  font-weight: 700;
}

.related-area p {
  margin: 0;

  color: var(--muted-color);
  font-size: 0.85rem;
}

/* =========================================
      Retry Button
========================================= */

.retry-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;

  margin-top: 35px;
  padding: 13px 28px;

  border: 1px solid var(--border-color);
  border-radius: 999px;

  background: var(--white);
  color: var(--muted-color);

  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;

  cursor: pointer;

  transition:
    border-color 0.25s ease,
    color 0.25s ease,
    background 0.25s ease,
    transform 0.25s ease;
}

.retry-button:hover {
  border-color: var(--sub-color);
  color: var(--main-color);
  background: #f3f8f5;

  transform: translateY(-2px);
}

.retry-button:active {
  transform: translateY(0);
}

/* ========================================= 
      Footer
========================================= */

.diagnosis-footer {
  margin-top: 30px;
  text-align: center;
  color: #8a9691;
  font-size: 0.75rem;
}

/* ========================================= 
      Loading / Analysis
========================================= */

.diagnosis-loading {
  text-align: center;
  padding: 100px 30px;
  background: var(--white);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.loading-circle {
  width: 54px;
  height: 54px;

  margin: 0 auto 28px;

  border: 4px solid #dce9e3;
  border-top-color: var(--main-color);

  border-radius: 50%;

  animation: diagnosis-spin 0.9s linear infinite;
}

.loading-text {
  margin: 0;

  color: var(--main-color);

  font-size: 1rem;
  font-weight: 700;
}

.loading-sub {
  margin-top: 8px;
  color: var(--muted-color);
  font-size: 0.8rem;
}

@keyframes diagnosis-spin {
  to {
    transform: rotate(360deg);
  }
}

/* ========================================= 
      Mobile
========================================= */

@media (max-width: 768px) {
  .diagnosis {
    padding: 85px 15px 40px;
  }

  .diagnosis-header {
    height: 60px;
    padding: 0 20px;
  }

  .diagnosis-label {
    font-size: 0.65rem;
  }

  .start-image {
    max-width: 320px;
    margin-bottom: 28px;
  }

  .diagnosis-start,
  .diagnosis-question,
  .diagnosis-result,
  .diagnosis-loading {
    padding: 45px 24px;
    border-radius: 18px;
  }
  .diagnosis-start h1 {
    font-size: 1.9rem;
  }
  .diagnosis-start .lead {
    font-size: 0.9rem;
  }
  .diagnosis-button {
    width: 100%;
    min-width: 0;
    padding: 16px 24px;
  }

  .diagnosis-choices {
    grid-template-columns: 1fr;
  }

  .diagnosis-choices {
    grid-template-columns: 1fr;
  }
  .diagnosis-choice {
    min-height: 64px;
  }
  #question-text {
    font-size: 1.25rem;
  }
  .result-title {
    font-size: 1.7rem;
  }
  .result-icon {
    width: 100px;
    height: 100px;
    font-size: 2.5rem;
  }
  #result-description {
    text-align: left;
  }
}

/* ========================================= 
      Small Mobile
========================================= */

@media (max-width: 480px) {
  .diagnosis-start,
  .diagnosis-question,
  .diagnosis-result,
  .diagnosis-loading {
    padding: 38px 20px;
  }
  .diagnosis-start h1 {
    font-size: 1.65rem;
  }
  .diagnosis-start .lead br {
    display: none;
  }
  .question-text {
    margin-bottom: 28px;
  }
  .diagnosis-choice {
    padding: 16px 48px 16px 18px;
  }
  .result-icon {
    width: 90px;
    height: 90px;
    font-size: 2.2rem;
  }
}