/* デザイン案「02 ゴシック・クリーン」を採用。
   白地＋青のアクセント、ゴシック体で、役所の案内のように読みやすく迷いにくい配色。 */
:root {
  --color-primary: #1d5e8f;
  --color-primary-dark: #164a72;
  --color-accent: #b4432c;
  --color-bg: #f5f7fa;
  --color-surface: #ffffff;
  --color-header-bg: #ffffff;
  --color-border: #dbe3ea;
  --color-text: #3a4551;
  --color-text-strong: #1a2733;
  --color-text-muted: #64707c;
  --font-serif: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic", sans-serif;
  --font-sans: "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;
  --radius: 6px;
  --max-width: 960px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.8;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 20px 72px;
}

/* ---------- Header ---------- */
#site-header {
  background: var(--color-header-bg);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-strong);
  position: sticky;
  top: 0;
  z-index: 10;
}
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 20px;
}
.brand {
  display: flex;
  flex-direction: column;
  color: var(--color-text-strong);
  margin-right: auto;
}
.brand:hover {
  text-decoration: none;
}
.brand-main {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.02em;
}
.brand-sub {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  letter-spacing: 0.03em;
}
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text-strong);
  border-radius: 3px;
  font-size: 1.1rem;
  padding: 4px 10px;
  cursor: pointer;
}
.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
}
.nav-link {
  color: var(--color-text);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
}
.nav-link:hover {
  text-decoration: none;
  color: var(--color-primary);
}
.nav-link.active {
  border-bottom-color: var(--color-primary);
  color: var(--color-text-strong);
  font-weight: 600;
}
.nav-link.locked {
  color: var(--color-text-muted);
}
.auth-area {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.8rem;
}
.user-badge {
  color: var(--color-text-muted);
}

@media (max-width: 720px) {
  .nav-toggle {
    display: inline-block;
  }
  .site-nav {
    display: none;
    flex-direction: column;
    width: 100%;
    order: 3;
    border-top: 1px solid var(--color-border);
    padding-top: 10px;
  }
  .site-nav.open {
    display: flex;
  }
  .auth-area {
    order: 2;
  }
}

/* ---------- Hero (トップページ) ---------- */
.hero {
  background-image: linear-gradient(180deg, rgba(20, 40, 60, 0.35), rgba(20, 45, 70, 0.65)), url("../assets/hero-building.jpg");
  background-size: cover;
  background-position: center 92%;
  color: #ffffff;
  padding: 56px 20px 40px;
  text-align: center;
}
.hero-emblem {
  width: 60px;
  height: 60px;
  margin: 0 auto 18px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.85);
  background: rgba(20, 40, 60, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: 0.04em;
}
.hero-title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.6rem;
  letter-spacing: 0.03em;
  margin: 0 0 14px;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.35);
}
.hero-sub {
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.92);
  margin: 2px 0;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.35);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 8px 18px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 0.88rem;
  text-decoration: none;
  font-family: var(--font-sans);
}
.btn:hover {
  text-decoration: none;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-primary-dark);
}
.btn-outline {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text-strong);
}
.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.btn-danger {
  background: var(--color-accent);
  color: #fff;
}
.btn-small {
  padding: 5px 12px;
  font-size: 0.78rem;
}

/* ---------- Cards / Sections ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
}
.section-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text-strong);
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
  letter-spacing: 0.01em;
}
.page-title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--color-text-strong);
  margin: 8px 0 24px;
  letter-spacing: 0.01em;
}
.badge {
  display: inline-block;
  background: #eaf1f8;
  color: var(--color-text-strong);
  border-radius: 999px;
  padding: 2px 12px;
  font-size: 0.72rem;
  letter-spacing: 0.03em;
}
.badge.public {
  background: #e5f0e8;
  color: #2f6d47;
}
.badge.locked {
  background: #f5e7e2;
  color: #a04a2b;
}

/* ---------- Lists ---------- */
.list-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}
.list-item:last-child {
  border-bottom: none;
}
.list-item-title {
  font-weight: 600;
  color: var(--color-text-strong);
}
.list-item-meta {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* ---------- Forms ---------- */
label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-strong);
  margin: 14px 0 5px;
}
input[type="text"],
input[type="password"],
input[type="date"],
input[type="tel"],
select,
textarea {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-size: 0.95rem;
  font-family: var(--font-sans);
  background: #fff;
  color: var(--color-text-strong);
}
input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}
textarea {
  resize: vertical;
  min-height: 90px;
}
.form-actions {
  margin-top: 18px;
  display: flex;
  gap: 10px;
}
.form-message {
  margin-top: 10px;
  font-size: 0.85rem;
}
.form-message.error {
  color: var(--color-accent);
}
.form-message.success {
  color: #2f6d47;
}
.hint {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ---------- Login gate ---------- */
.gate {
  text-align: center;
  padding: 48px 20px;
}
.gate p {
  color: var(--color-text-muted);
}

/* ---------- Footer ---------- */
#site-footer {
  background: var(--color-header-bg);
  border-top: 1px solid var(--color-border);
  margin-top: 40px;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 20px;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  text-align: center;
}
.footer-note {
  margin-top: 6px;
}

/* ---------- Dashboard grid ---------- */
.dash-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 640px) {
  .dash-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* ---------- Photo grid ---------- */
.photo-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: 20px;
}
@media (min-width: 560px) {
  .photo-grid {
    grid-template-columns: 1fr 1fr;
  }
}
.photo-figure {
  margin: 0;
}
.photo-figure img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}
.photo-figure figcaption {
  margin-top: 6px;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  color: var(--color-text-muted);
  text-align: center;
}

table.info-table {
  width: 100%;
  border-collapse: collapse;
}
table.info-table th,
table.info-table td {
  text-align: left;
  padding: 10px 10px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}
table.info-table th {
  width: 40%;
  color: var(--color-text-muted);
  font-weight: 600;
  font-size: 0.88rem;
}

/* ---------- Demo badge ---------- */
.demo-banner {
  background: var(--color-primary);
  color: #fff;
  text-align: center;
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  padding: 6px 10px;
}