/*
 README (styles.css)
 - 単一ファイルCSS。ビルド不要、1スペースインデント。
 - シンプルなカードUI、レスポンシブ、コントラストとフォーカスを重視。
*/

:root {
  --bg: #0f1626;
  --panel: #172238;
  --panel-2: #1d2a45;
  --card: #1b2742;
  --text: #eef3fb;
  --muted: #bdc6da;
  --border: #2a3c5f;
  --primary: #5aa3ff;
  --ok: #32d27a;
  --warn: #d3a731;
  --bad: #ef5a5a;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #ffffff;
    --panel: #f8fafc;
    --panel-2: #f1f5f9;
    --card: #ffffff;
    --text: #0f172a;
    --muted: #475569;
    --border: #e2e8f0;
    --primary: #0b5fff;
    --ok: #16a34a;
    --warn: #b45309;
    --bad: #b91c1c;
  }
}

/* 手動テーマ（システム設定を上書き） */
:root[data-theme="dark"] {
  --bg: #0f1626;
  --panel: #172238;
  --panel-2: #1d2a45;
  --card: #1b2742;
  --text: #eef3fb;
  --muted: #bdc6da;
  --border: #2a3c5f;
  --primary: #5aa3ff;
  --ok: #32d27a;
  --warn: #d3a731;
  --bad: #ef5a5a;
}
:root[data-theme="light"] {
  --bg: #ffffff;
  --panel: #f8fafc;
  --panel-2: #f1f5f9;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --primary: #0b5fff;
  --ok: #16a34a;
  --warn: #b45309;
  --bad: #b91c1c;
}

* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
}
body {
  margin: 0;
  background: linear-gradient(180deg, var(--panel-2), var(--bg));
  color: var(--text);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial,
    "Apple Color Emoji", "Segoe UI Emoji";
  line-height: 1.6;
}
a {
  color: inherit;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  clip: rect(0, 0, 1, 1);
  overflow: hidden;
  border: 0;
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 16px;
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(11, 95, 255, 0.08), transparent);
}
.header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.site-title {
  margin: 8px 0 12px 0;
  font-size: 1.25rem;
}

.site-main {
  padding: 16px 0;
}
.status {
  margin-bottom: 12px;
}
.loading {
  padding: 12px 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.error {
  padding: 12px 14px;
  background: rgba(220, 38, 38, 0.08);
  border: 1px solid var(--bad);
  border-radius: 12px;
}

.hero {
}
.cards {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04), 0 8px 24px rgba(2, 6, 23, 0.24);
}
.card-title {
  margin: 0 0 8px 0;
  font-size: 1.05rem;
}
.card-text {
  margin: 0 0 6px 0;
}
.card-sub {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}
.card-result {
  grid-column: 1/-1;
  text-align: center;
  padding: 18px 16px;
}
.card-forecast {
  grid-column: 1/-1;
}

.decision {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 6px 0;
}
.decision-ok {
  color: var(--ok);
}
.decision-warn {
  color: var(--warn);
}
.decision-bad {
  color: var(--bad);
}
.reasons {
  margin: 0;
  color: var(--muted);
}

.forecast {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}
@media (min-width: 540px) {
  .forecast {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (min-width: 720px) {
  .forecast {
    grid-template-columns: repeat(4, 1fr);
  }
}
@media (min-width: 960px) {
  .forecast {
    grid-template-columns: repeat(7, 1fr);
  }
}
.fc-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel-2);
  cursor: pointer;
}
.fc-item:hover {
  border-color: var(--primary);
}
.fc-item:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}
.fc-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}
.fc-day {
  font-weight: 700;
}
.fc-emoji {
  font-size: 1.1rem;
}
.fc-line {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}
.fc-line strong {
  color: var(--text);
}
.fc-badge {
  display: inline-block;
  font-size: 0.8rem;
  padding: 1px 6px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  margin-left: 6px;
}

.badge {
  display: inline-block;
  font-size: 0.85rem;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  margin-left: 6px;
}
.badge-good {
  border-color: transparent;
  background: rgba(22, 163, 74, 0.15);
  color: var(--ok);
}
.badge-warn {
  border-color: transparent;
  background: rgba(202, 138, 4, 0.18);
  color: var(--warn);
}
.badge-bad {
  border-color: transparent;
  background: rgba(220, 38, 38, 0.18);
  color: var(--bad);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  cursor: pointer;
}
.btn:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--primary);
  border-color: transparent;
  color: #fff;
}
.btn-secondary {
}

.manual {
  margin-top: 14px;
}
.manual-inner {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
}
.manual-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.manual input {
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
}
.manual input:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}
.manual .or {
  color: var(--muted);
}
.manual-actions {
  margin-top: 8px;
}
.note {
  margin: 8px 0 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 16px 0;
  margin-top: 16px;
  color: var(--muted);
}
.footer-link {
  color: inherit;
  text-decoration: underline;
}

.static-page {
  position: relative;
  padding: 16px 0;
}

.theme-toggle {
  display: none;
  box-shadow: 0 6px 20px rgba(2, 6, 23, 0.15);
}
.theme-toggle.icon-only {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0;
  font-size: 18px;
}
@media (min-width: 720px) {
  .theme-toggle {
    display: inline-flex;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}