:root {
  color-scheme: light;
  --bg: #f5efe6;
  --bg-2: #edf4ff;
  --panel: rgba(255, 255, 255, 0.78);
  --panel-strong: rgba(255, 255, 255, 0.96);
  --line: rgba(17, 24, 39, 0.12);
  --text: #122033;
  --muted: #5d6c84;
  --muted-2: #7d8798;
  --accent: #0e66ff;
  --accent-2: #0b918f;
  --accent-3: #ff7a59;
  --shadow: 0 24px 80px rgba(15, 23, 42, 0.12);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(14, 102, 255, 0.14), transparent 30%),
    radial-gradient(circle at top right, rgba(11, 145, 143, 0.12), transparent 28%),
    linear-gradient(145deg, var(--bg), var(--bg-2));
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(18, 32, 51, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 32, 51, 0.03) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.7), transparent 95%);
  pointer-events: none;
}

a {
  color: inherit;
}

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

.ambient {
  position: fixed;
  border-radius: 999px;
  filter: blur(10px);
  opacity: 0.55;
  pointer-events: none;
}

.ambient--one {
  width: 26rem;
  height: 26rem;
  top: -8rem;
  right: -10rem;
  background: rgba(14, 102, 255, 0.18);
}

.ambient--two {
  width: 20rem;
  height: 20rem;
  bottom: -6rem;
  left: -8rem;
  background: rgba(255, 122, 89, 0.16);
}

.shell {
  position: relative;
  width: min(1200px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0 42px;
}

.panel,
.footer {
  border: 1px solid rgba(255, 255, 255, 0.65);
  background: var(--panel);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
}

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

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid rgba(18, 32, 51, 0.12);
  background: rgba(255, 255, 255, 0.58);
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 600;
}

.badge--solid {
  border-color: transparent;
  background: linear-gradient(135deg, rgba(14, 102, 255, 0.14), rgba(11, 145, 143, 0.14));
  color: #0d4ab3;
}

.grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 20px;
  align-items: start;
  margin-top: 0;
}

.panel {
  border-radius: var(--radius-xl);
  padding: 22px;
}

.panel--results {
  position: sticky;
  top: 18px;
}

.panel__header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: end;
  margin-bottom: 20px;
}

.panel__header h2,
.comparison__header h3 {
  font-size: 1.45rem;
  line-height: 1.2;
}

.panel__note {
  max-width: 34ch;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.7;
}

.field {
  display: grid;
  gap: 10px;
}

.field--full {
  margin-bottom: 18px;
}

.field--textarea {
  margin-bottom: 18px;
}

.io-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.88fr);
  gap: 16px;
  align-items: start;
}

.io-grid__main {
  display: grid;
  gap: 0;
}

.io-grid__side {
  margin-bottom: 0;
}

.io-grid .field--full,
.io-grid .field--textarea {
  margin-bottom: 0;
}

.mode-switch {
  display: inline-flex;
  gap: 8px;
  padding: 6px;
  margin-bottom: 18px;
  border-radius: 999px;
  border: 1px solid rgba(18, 32, 51, 0.08);
  background: rgba(255, 255, 255, 0.7);
}

.mode-tab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-weight: 700;
  cursor: pointer;
  transition:
    background 160ms ease,
    color 160ms ease,
    box-shadow 160ms ease,
    transform 160ms ease;
}

.mode-tab:hover {
  transform: translateY(-1px);
  color: var(--text);
}

.mode-tab.is-active,
.mode-tab[aria-pressed="true"] {
  background: linear-gradient(135deg, rgba(14, 102, 255, 0.14), rgba(11, 145, 143, 0.14));
  color: #0d4ab3;
  box-shadow: 0 8px 24px rgba(14, 102, 255, 0.08);
}

.mode-panel.is-hidden {
  display: none;
}

.field__label {
  font-size: 0.92rem;
  font-weight: 700;
  color: #20314c;
}

.panel__note--lower {
  max-width: none;
  margin-top: 14px;
  font-size: 0.84rem;
  line-height: 1.6;
}

textarea,
input,
select {
  width: 100%;
  border: 1px solid rgba(18, 32, 51, 0.12);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--text);
  padding: 14px 16px;
  outline: none;
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease,
    transform 160ms ease;
}

textarea {
  min-height: 176px;
  resize: vertical;
  line-height: 1.85;
}

input::placeholder,
textarea::placeholder {
  color: rgba(93, 108, 132, 0.7);
}

textarea:focus,
input:focus,
select:focus {
  border-color: rgba(14, 102, 255, 0.48);
  box-shadow: 0 0 0 4px rgba(14, 102, 255, 0.12);
  transform: translateY(-1px);
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.summary {
  display: grid;
  gap: 18px;
  padding: 18px;
  border-radius: calc(var(--radius-lg) + 2px);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(255, 255, 255, 0.72));
  border: 1px solid rgba(18, 32, 51, 0.08);
}

.summary__title {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 12px;
}

.summary__label {
  display: inline-block;
  margin-bottom: 6px;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted-2);
}

.summary h3 {
  font-family: "Noto Serif JP", Georgia, serif;
  font-size: 1.5rem;
}

.summary__numbers {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.metric {
  padding: 16px;
  border-radius: var(--radius-md);
  background: rgba(245, 247, 252, 0.95);
  border: 1px solid rgba(18, 32, 51, 0.08);
}

.metric__label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.metric strong {
  display: block;
  font-size: clamp(1.2rem, 3vw, 1.6rem);
  letter-spacing: -0.03em;
}

.metric__sub {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.88rem;
}

.metric--highlight {
  background: linear-gradient(145deg, rgba(14, 102, 255, 0.14), rgba(11, 145, 143, 0.12));
  border-color: rgba(14, 102, 255, 0.2);
}

.comparison {
  margin-top: 18px;
}

.comparison__header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: end;
  margin-bottom: 14px;
}

.comparison__header p {
  color: var(--muted);
  max-width: 30ch;
  line-height: 1.6;
  font-size: 0.92rem;
}

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

.model-card {
  position: relative;
  display: block;
  width: 100%;
  border: 1px solid rgba(18, 32, 51, 0.09);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.85);
  padding: 18px;
  text-align: left;
  appearance: none;
  cursor: pointer;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease;
}

.model-card:hover {
  transform: translateY(-2px);
  border-color: rgba(14, 102, 255, 0.22);
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.08);
}

.model-card:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(14, 102, 255, 0.18);
}

.model-card[data-selected="true"] {
  background: linear-gradient(145deg, rgba(14, 102, 255, 0.1), rgba(11, 145, 143, 0.08));
  border-color: rgba(14, 102, 255, 0.28);
  box-shadow:
    0 0 0 1px var(--model-accent) inset,
    0 16px 36px rgba(15, 23, 42, 0.08);
}

.model-card__top {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 12px;
}

.model-card__heading {
  display: grid;
  gap: 4px;
}

.model-card__name {
  font-size: 1.1rem;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.model-card__meta {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.5;
}

.model-card__switch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid rgba(18, 32, 51, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease,
    color 160ms ease,
    box-shadow 160ms ease;
}

.model-card__switch:hover {
  transform: translateY(-1px);
  border-color: rgba(14, 102, 255, 0.24);
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 10px 22px rgba(15, 23, 42, 0.08);
}

.model-card__switch:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(14, 102, 255, 0.18);
}

.model-card__hint {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

.model-card__price {
  margin-top: 14px;
  font-size: 1.3rem;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.model-card__secondary {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.88rem;
}

.model-card__rates {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font-size: 0.82rem;
}

.model-card__footnote {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

.meter {
  margin-top: 12px;
  height: 10px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(18, 32, 51, 0.08);
}

.meter span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.footer {
  margin-top: 20px;
  border-radius: var(--radius-xl);
  padding: 18px 22px;
  color: var(--muted);
  line-height: 1.75;
  font-size: 0.92rem;
}

.footer p + p {
  margin-top: 6px;
}

@media (max-width: 1080px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .panel--results {
    position: static;
  }
}

@media (max-width: 760px) {
  .shell {
    width: min(100vw - 20px, 1200px);
    padding-top: 18px;
  }

  .panel,
  .footer {
    border-radius: 24px;
  }

  .panel {
    padding: 18px;
  }

  .field-grid,
  .summary__numbers {
    grid-template-columns: 1fr;
  }

  .io-grid {
    grid-template-columns: 1fr;
  }

  .mode-switch {
    width: 100%;
  }

  .mode-tab {
    flex: 1;
  }

  .panel__header,
  .summary__title,
  .comparison__header {
    flex-direction: column;
    align-items: start;
  }

  .model-card__top {
    flex-direction: column;
    align-items: start;
  }

  .model-card__switch {
    align-self: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}