:root {
  --navy: #10233f;
  --navy-dark: #07162c;
  --blue: #245b9f;
  --sky: #edf5ff;
  --gray-50: #f7f9fc;
  --gray-100: #edf1f7;
  --gray-300: #d7deea;
  --gray-600: #5c6678;
  --text: #172033;
  --white: #ffffff;
  --green: #1d8f63;
  --orange: #c9791d;
  --red: #c34444;
  --shadow: 0 20px 60px rgba(16, 35, 63, 0.12);
  --radius: 20px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--gray-50);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  line-height: 1.75;
}

button,
input,
select,
textarea {
  font: inherit;
}

.container {
  width: min(1160px, calc(100% - 36px));
  margin: 0 auto;
}

.app-header {
  padding: 76px 0 56px;
  color: var(--white);
  background:
    radial-gradient(circle at top right, rgba(83, 145, 218, 0.35), transparent 34%),
    linear-gradient(135deg, var(--navy-dark), var(--navy));
}

.header-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.6fr);
  gap: 40px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.app-header .eyebrow,
.status-label {
  color: #b9d6ff;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 18px;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.22;
  letter-spacing: -0.05em;
}

h2 {
  margin-bottom: 10px;
  color: var(--navy);
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.35;
  letter-spacing: -0.03em;
}

h3 {
  margin-bottom: 8px;
  color: var(--navy);
  font-size: 20px;
  line-height: 1.4;
}

.lead {
  max-width: 780px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.8);
  font-size: 18px;
}

.status-card {
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
}

.status-card ul {
  margin: 0;
  padding-left: 20px;
}

.status-card li + li {
  margin-top: 8px;
}

.app-main {
  display: grid;
  gap: 24px;
  padding: 32px 0 64px;
}

.panel {
  padding: 30px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 12px 38px rgba(16, 35, 63, 0.08);
}

.section-title {
  margin-bottom: 22px;
}

.section-title p {
  color: var(--gray-600);
}

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

.field {
  display: grid;
  gap: 8px;
}

.field-wide {
  grid-column: 1 / -1;
}

.field span {
  color: var(--navy);
  font-weight: 800;
}

textarea,
input,
select {
  width: 100%;
  border: 1px solid var(--gray-300);
  border-radius: 16px;
  color: var(--text);
  background: #fbfdff;
  outline: none;
  transition: border 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

textarea {
  min-height: 150px;
  padding: 15px 16px;
  resize: vertical;
}

input,
select {
  min-height: 52px;
  padding: 0 16px;
}

textarea:focus,
input:focus,
select:focus {
  border-color: var(--blue);
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(36, 91, 159, 0.12);
}

.actions {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

.button,
.copy-button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 999px;
  padding: 0 24px;
  cursor: pointer;
  font-weight: 900;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button:hover,
.copy-button:hover {
  transform: translateY(-1px);
}

.button.primary {
  color: var(--white);
  background: var(--navy);
  box-shadow: 0 14px 30px rgba(16, 35, 63, 0.22);
}

.button.secondary {
  color: var(--navy);
  background: var(--sky);
}

.button.ghost {
  color: var(--gray-600);
  background: var(--gray-100);
}

.score-hero {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 24px;
  align-items: center;
  margin-bottom: 26px;
}

.score-ring {
  display: grid;
  width: 136px;
  height: 136px;
  place-items: center;
  border: 12px solid var(--gray-100);
  border-radius: 50%;
  background: var(--white);
  box-shadow: inset 0 0 0 1px var(--gray-300);
}

.score-ring span {
  color: var(--navy);
  font-size: 42px;
  font-weight: 1000;
  line-height: 1;
}

.score-ring small {
  margin-top: -24px;
  color: var(--gray-600);
  font-weight: 800;
}

.score-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.score-card {
  padding: 18px;
  border: 1px solid var(--gray-300);
  border-radius: 16px;
  background: #fbfdff;
}

.score-card strong {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  color: var(--navy);
}

.score-card span {
  font-size: 24px;
  font-weight: 1000;
}

.score-card p {
  margin: 0;
  color: var(--gray-600);
  font-size: 14px;
}

.score-good {
  color: var(--green);
}

.score-mid {
  color: var(--orange);
}

.score-low {
  color: var(--red);
}

.list-box {
  display: grid;
  gap: 12px;
}

.list-box.empty {
  color: var(--gray-600);
}

.improvement-item {
  padding: 16px 18px;
  border-left: 4px solid var(--blue);
  border-radius: 14px;
  background: var(--gray-50);
}

.improvement-item strong {
  display: block;
  color: var(--navy);
}

.two-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.output-box {
  min-height: 220px;
  margin: 0 0 14px;
  padding: 18px;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
  border: 1px solid var(--gray-300);
  border-radius: 16px;
  color: var(--text);
  background: var(--gray-50);
  font-family: inherit;
}

.copy-button {
  min-height: 44px;
  color: var(--white);
  background: var(--blue);
}

.ab-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.ab-card {
  padding: 18px;
  border: 1px solid var(--gray-300);
  border-radius: 16px;
  background: var(--gray-50);
}

.ab-card h3 {
  font-size: 17px;
}

.ab-card p {
  margin-bottom: 0;
  color: var(--gray-600);
}

.result-cta {
  display: grid;
  gap: 18px;
  border-color: rgba(29, 143, 99, 0.24);
  background:
    radial-gradient(circle at top right, rgba(29, 143, 99, 0.10), transparent 34%),
    var(--white);
}

.result-cta.is-hidden {
  display: none;
}

.cta-copy p {
  color: var(--gray-600);
}

.cta-copy ul {
  display: grid;
  gap: 8px;
  margin: 16px 0 0;
  padding-left: 20px;
}

.cta-copy li {
  color: var(--navy);
  font-weight: 700;
}

.line-cta-button {
  width: fit-content;
  min-height: 58px;
  padding-inline: 30px;
  background: var(--green) !important;
  box-shadow: 0 14px 30px rgba(29, 143, 99, 0.22) !important;
}

.cta-note {
  margin: -4px 0 0;
  color: var(--gray-600);
  font-size: 14px;
}

.app-footer {
  padding: 28px 0;
  color: rgba(255, 255, 255, 0.72);
  background: var(--navy-dark);
}

.app-footer p {
  margin: 0;
}

@media (max-width: 900px) {
  .header-grid,
  .two-columns,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .score-grid,
  .ab-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 28px, 1160px);
  }

  .app-header {
    padding: 54px 0 42px;
  }

  .panel {
    padding: 22px;
  }

  .actions,
  .button,
  .copy-button,
  .line-cta-button {
    width: 100%;
  }

  .score-hero {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .score-grid,
  .ab-grid {
    grid-template-columns: 1fr;
  }
}