/* 湖南市減税会 — shared styles (mobile-first) */

:root {
  --color-bg: #f6f8f7;
  --color-surface: #ffffff;
  --color-text: #1a2e2a;
  --color-muted: #4a635c;
  --color-border: #d5e3de;
  --color-primary: #0d5c4d;
  --color-primary-dark: #094a3e;
  --color-accent: #2a9d8f;
  --color-accent-soft: #e6f5f2;
  --color-focus: #1a7a6a;
  --shadow-sm: 0 1px 3px rgba(13, 92, 77, 0.08);
  --shadow-md: 0 4px 16px rgba(13, 92, 77, 0.1);
  --radius: 12px;
  --radius-sm: 8px;
  --font: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP",
    "Yu Gothic", "YuGothic", Meiryo, sans-serif;
  --max: 720px;
  --header-h: 56px;
  --space: 1.25rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

body.nav-open {
  overflow: hidden;
}

img,
svg {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--color-accent);
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1rem;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

.logo:hover {
  color: var(--color-primary);
}

.logo-mark {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
  transition: transform 0.2s, opacity 0.2s;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-nav {
  display: none;
  position: absolute;
  top: var(--header-h);
  left: 0;
  right: 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  padding: 0.75rem 1rem 1.25rem;
}

.site-nav.is-open {
  display: block;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.site-nav a {
  display: block;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  color: var(--color-text);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
}

.site-nav a:hover {
  background: var(--color-accent-soft);
  color: var(--color-primary);
}

.site-nav a[aria-current="page"] {
  background: var(--color-accent-soft);
  color: var(--color-primary);
}

/* Main */
.site-main {
  flex: 1;
  width: 100%;
}

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.75rem 1.15rem 3rem;
}

.container-wide {
  max-width: 960px;
}

/* Hero */
.hero {
  background: linear-gradient(165deg, #0d5c4d 0%, #146b5a 45%, #1a8574 100%);
  color: #fff;
  padding: 2.5rem 1.15rem 2.75rem;
  text-align: center;
}

.hero-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 0.35rem 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  margin-bottom: 1rem;
  opacity: 0.95;
}

.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.6rem, 5.5vw, 2.1rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.35;
}

.hero-lead {
  margin: 0 auto 1.5rem;
  max-width: 28em;
  font-size: 0.98rem;
  line-height: 1.7;
  opacity: 0.95;
}

.hero .btn {
  background: #fff;
  color: var(--color-primary);
}

.hero .btn:hover {
  background: var(--color-accent-soft);
  color: var(--color-primary-dark);
}

/* Sections */
.section {
  margin-bottom: 2.5rem;
}

.section-title {
  margin: 0 0 1rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.03em;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.lead-text {
  margin: 0 0 1.25rem;
  color: var(--color-text);
  font-size: 1.02rem;
}

.muted {
  color: var(--color-muted);
  font-size: 0.92rem;
}

/* Cards */
.card-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem 1.2rem;
  box-shadow: var(--shadow-sm);
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  color: var(--color-primary);
  line-height: 1.45;
}

.card p {
  margin: 0;
  color: var(--color-text);
  font-size: 0.95rem;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.75rem;
  margin-bottom: 0.65rem;
  font-size: 0.8rem;
  color: var(--color-muted);
}

.tag {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  background: var(--color-accent-soft);
  color: var(--color-primary);
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.75rem;
}

.principle-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  margin-right: 0.4rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  font-size: 0.8rem;
  font-weight: 700;
  vertical-align: middle;
}

/* Buttons / CTA */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 48px;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-sm);
  border: none;
  background: var(--color-primary);
  color: #fff;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}

.btn:hover {
  background: #0a4a3e;
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-accent-soft);
  color: var(--color-primary);
}

.btn-block {
  width: 100%;
}

.cta-box {
  background: var(--color-accent-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem 1.25rem;
  text-align: center;
}

.cta-box p {
  margin: 0 0 1rem;
  color: var(--color-text);
}

.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: stretch;
}

/* SNS cards */
.sns-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

.sns-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.1s;
  min-height: 88px;
}

.sns-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
  color: var(--color-text);
  transform: translateY(-1px);
}

.sns-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-soft);
  color: var(--color-primary);
}

.sns-icon svg {
  width: 26px;
  height: 26px;
}

.sns-card strong {
  display: block;
  font-size: 1.05rem;
  color: var(--color-primary);
  margin-bottom: 0.15rem;
}

.sns-card span {
  font-size: 0.85rem;
  color: var(--color-muted);
}

/* Steps */
.steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.steps li {
  position: relative;
  padding: 1rem 1rem 1rem 3.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  box-shadow: var(--shadow-sm);
}

.steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0.9rem;
  top: 1.05rem;
  width: 1.75rem;
  height: 1.75rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.steps strong {
  display: block;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}

/* Empty / placeholder */
.empty-hint {
  text-align: center;
  padding: 2rem 1.25rem;
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  color: var(--color-muted);
  background: var(--color-surface);
}

.page-intro {
  margin-bottom: 1.5rem;
}

.page-intro h1 {
  margin: 0 0 0.5rem;
  font-size: 1.45rem;
  color: var(--color-primary);
  letter-spacing: 0.03em;
}

/* Footer */
.site-footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.92);
  padding: 2rem 1.15rem 1.75rem;
  margin-top: auto;
}

.footer-inner {
  max-width: 960px;
  margin: 0 auto;
  text-align: center;
}

.footer-name {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.footer-tagline {
  margin: 0 0 1.15rem;
  font-size: 0.85rem;
  opacity: 0.88;
  line-height: 1.6;
}

.footer-sns {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.footer-sns a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  text-decoration: none;
  transition: background 0.15s;
}

.footer-sns a:hover {
  background: rgba(255, 255, 255, 0.25);
  color: #fff;
}

.footer-sns svg {
  width: 18px;
  height: 18px;
}

.footer-copy {
  margin: 0;
  font-size: 0.78rem;
  opacity: 0.75;
}


.footer-links {
  margin: 0 0 0.85rem;
  font-size: 0.85rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.92);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.footer-links a:hover {
  color: #fff;
}

.content-list {
  margin: 0;
  padding-left: 1.25rem;
}

.content-list li {
  margin-bottom: 0.55rem;
}

.content-list li:last-child {
  margin-bottom: 0;
}

/* Desktop */
@media (min-width: 768px) {
  :root {
    --header-h: 64px;
  }

  .nav-toggle {
    display: none;
  }

  .site-nav {
    display: block;
    position: static;
    border: none;
    box-shadow: none;
    padding: 0;
    background: transparent;
  }

  .site-nav ul {
    flex-direction: row;
    gap: 0.15rem;
  }

  .site-nav a {
    padding: 0.5rem 0.75rem;
    font-size: 0.88rem;
  }

  .hero {
    padding: 3.5rem 1.5rem 3.75rem;
  }

  .container {
    padding: 2.5rem 1.5rem 4rem;
  }

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

  .cta-actions {
    flex-direction: row;
    justify-content: center;
  }

  .cta-actions .btn {
    min-width: 180px;
  }

  .card-list.principles {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

@media (min-width: 900px) {
  .card-list.principles {
    grid-template-columns: repeat(3, 1fr);
  }

  .card-list.principles .card h3 {
    min-height: 3.2em;
  }
}

.sns-card.is-soon,
.footer-sns a.is-soon {
  opacity: 0.55;
  cursor: default;
  pointer-events: auto;
}
.sns-card.is-soon:hover {
  transform: none;
  box-shadow: none;
}

.sns-card[hidden],
.footer-sns a[hidden],
[data-google-form].is-disabled {
  display: none !important;
}

/* Events page */
.card--priority {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.tag--priority {
  background: var(--color-primary);
  color: #fff;
}

.card--compact {
  padding: 1rem 1.1rem;
}

.event-details {
  margin: 0.75rem 0 0;
  padding-left: 1.15rem;
  color: var(--color-text);
  font-size: 0.95rem;
}

.event-details li {
  margin-bottom: 0.35rem;
}

.event-note {
  margin: 0.75rem 0 0 !important;
  font-size: 0.9rem !important;
  color: var(--color-muted) !important;
}

.event-source-line {
  margin: 0.65rem 0 0 !important;
  font-size: 0.85rem !important;
  color: var(--color-muted) !important;
}

.event-source {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  word-break: break-all;
}

.event-source:hover {
  color: var(--color-accent);
}

.event-disclaimer {
  margin-top: 0.25rem;
  margin-bottom: 0;
  font-size: 0.82rem;
  line-height: 1.65;
}

/* Policy pages (merged from drafts/draft.css) */
.source-box {
  margin-top: 1.25rem;
  padding: 1rem 1.1rem;
  background: #f0f5f3;
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--color-muted);
}

.source-box strong {
  display: block;
  color: var(--color-primary);
  font-size: 0.9rem;
  margin-bottom: 0.45rem;
}

.source-box ul {
  margin: 0;
  padding-left: 1.15rem;
}

.source-box li {
  margin-bottom: 0.35rem;
}

.source-box a {
  word-break: break-all;
}

.stat-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: 1fr;
  margin: 1rem 0 1.25rem;
  padding: 0;
  list-style: none;
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.1rem 1rem;
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.stat-card .stat-label {
  display: block;
  font-size: 0.82rem;
  color: var(--color-muted);
  margin-bottom: 0.35rem;
  font-weight: 600;
}

.stat-card .stat-value {
  display: block;
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
  letter-spacing: 0.02em;
}

.stat-card .stat-note {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.78rem;
  color: var(--color-muted);
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  margin: 1rem 0;
}

.compare-table th,
.compare-table td {
  padding: 0.7rem 0.85rem;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}

.compare-table th {
  background: var(--color-accent-soft);
  color: var(--color-primary);
  font-weight: 700;
  font-size: 0.85rem;
}

.compare-table tr:last-child th,
.compare-table tr:last-child td {
  border-bottom: none;
}

.compare-table .num {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.chart-bars {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin: 1rem 0 1.25rem;
}

.chart-bar {
  display: grid;
  grid-template-columns: minmax(5.5rem, 7.5rem) 1fr auto;
  gap: 0.5rem 0.75rem;
  align-items: center;
  font-size: 0.88rem;
}

.chart-bar-label {
  color: var(--color-muted);
  font-weight: 600;
  line-height: 1.35;
}

.chart-bar-track {
  height: 1.35rem;
  background: #e8efec;
  border-radius: 999px;
  overflow: hidden;
}

.chart-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 999px;
  min-width: 2px;
}

.chart-bar-fill.is-compare {
  background: linear-gradient(90deg, #6b8f86, #9bb8b0);
}

.chart-bar-value {
  font-weight: 700;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
  min-width: 3.5rem;
  text-align: right;
}

.timeline {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  border-left: 3px solid var(--color-accent);
}

.timeline li {
  position: relative;
  padding: 0 0 1.35rem 1.25rem;
}

.timeline li:last-child {
  padding-bottom: 0;
}

.timeline li::before {
  content: "";
  position: absolute;
  left: -0.55rem;
  top: 0.35rem;
  width: 0.7rem;
  height: 0.7rem;
  background: var(--color-primary);
  border: 2px solid #fff;
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--color-accent);
}

.timeline-date {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 0.2rem;
}

.timeline-body {
  margin: 0;
  font-size: 0.95rem;
}

.update-banner {
  background: #fff8e8;
  border: 1px solid #e8d4a8;
  border-radius: var(--radius);
  padding: 1.1rem 1.15rem;
  margin-bottom: 1.5rem;
}

.update-banner h2 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  color: #8a5a00;
}

.update-banner p {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
}

.update-banner p:last-child {
  margin-bottom: 0;
}


@media (min-width: 768px) {
  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .stat-grid.stat-grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}
/* Denser nav for expanded menu */
@media (min-width: 768px) {
  .site-nav a {
    padding: 0.45rem 0.55rem;
    font-size: 0.82rem;
  }
}



/* Topic sub-nav (under 湖南市の実情) */
.topic-subnav {
  margin: 0 0 1.25rem;
  padding: 0.85rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.topic-subnav .breadcrumb {
  margin: 0 0 0.45rem;
  font-size: 0.88rem;
  color: var(--color-muted);
}

.topic-subnav .breadcrumb a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
}

.topic-subnav .breadcrumb a:hover {
  text-decoration: underline;
}

.topic-subnav .sibling-links {
  margin: 0;
  font-size: 0.92rem;
  color: var(--color-muted);
}

.topic-subnav .sibling-links a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
  padding: 0.1rem 0.15rem;
}

.topic-subnav .sibling-links a:hover {
  text-decoration: underline;
}

.topic-subnav .sibling-links a[aria-current="page"] {
  color: var(--color-text);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.card--hub {
  padding: 1.4rem 1.3rem;
}

.card--hub h3 {
  font-size: 1.15rem;
}

@media (min-width: 768px) {
  .card-list.hub-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }
}