:root {
  --ink: #23281f;
  --ink-soft: #5b6058;
  --paper: #faf6ee;
  --paper-alt: #f3ede0;
  --card: #fffdf9;
  --line: #e7e0d1;
  --leaf: #1f4c3f;
  --leaf-dark: #16362d;
  --leaf-tint: #e3ede8;
  --gold: #c98a3e;
  --danger: #a4442f;
  --radius: 18px;
  --shadow: 0 10px 30px rgba(35, 40, 31, 0.06);
  --max-w: 1100px;
  --max-w-narrow: 760px;
  --font-display: "Fraunces", Georgia, "Noto Serif JP", serif;
  --font-body: "Inter", "Hiragino Sans", "Noto Sans JP", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: var(--leaf-dark); }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  margin: 0;
}

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 20px;
}

.wrap-narrow { max-width: var(--max-w-narrow); }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 246, 238, 0.92);
  backdrop-filter: saturate(140%) blur(6px);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.2rem;
  text-decoration: none;
  color: var(--ink);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--leaf);
  color: #fff;
  flex-shrink: 0;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  flex: 1;
  margin-left: 24px;
}

.main-nav a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-weight: 500;
}

.main-nav a:hover { color: var(--leaf-dark); }

.header-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.lang-switch {
  display: flex;
  gap: 2px;
  background: var(--paper-alt);
  border-radius: 999px;
  padding: 3px;
  border: 1px solid var(--line);
}

.lang-switch button {
  border: none;
  background: transparent;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--ink-soft);
  white-space: nowrap;
}

.lang-switch button.active {
  background: var(--leaf);
  color: #fff;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  font-size: 0.98rem;
  border: 2px solid transparent;
  cursor: pointer;
  text-align: center;
  font-family: var(--font-body);
}

.btn-primary {
  background: var(--leaf);
  color: #fff;
}
.btn-primary:hover { background: var(--leaf-dark); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--leaf); color: var(--leaf-dark); }

.btn-sm { padding: 9px 18px; font-size: 0.88rem; }
.btn-block { display: block; width: 100%; padding: 15px; font-size: 1.02rem; }

/* Hero */
.hero {
  padding: 64px 0 56px;
  text-align: center;
}

.badge {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--leaf-dark);
  background: var(--leaf-tint);
  border: 1px solid #cfe0d8;
  padding: 7px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
  font-weight: 700;
}

.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.1rem);
  max-width: 760px;
  margin-inline: auto;
  margin-bottom: 20px;
}

.hero .subtitle {
  max-width: 620px;
  margin: 0 auto 32px;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.hero-ctas {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 44px;
}

/* Stats card */
.stats-card {
  max-width: 720px;
  margin: 0 auto;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 30px;
  text-align: left;
}

.stats-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.stats-amount {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.3rem);
  font-weight: 600;
}

.stats-sub {
  color: var(--ink-soft);
  font-size: 0.92rem;
  margin-top: 2px;
}

.stats-percent {
  font-weight: 700;
  color: var(--leaf-dark);
  font-size: 0.95rem;
  white-space: nowrap;
}

.progress-bar {
  height: 10px;
  background: var(--paper-alt);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--line);
  margin-bottom: 14px;
}

.progress-bar > span {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--leaf), var(--gold));
  transition: width 0.4s ease;
}

.stats-donors {
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.stats-donors strong { color: var(--ink); font-size: 1.02rem; }

/* Sections */
section {
  padding: 56px 0;
}

.section-alt { background: var(--paper-alt); }

.section-title {
  font-size: clamp(1.5rem, 3vw, 1.9rem);
  margin-bottom: 18px;
}

.lede {
  color: var(--ink-soft);
  margin: 0 0 28px;
}

#story p, #story .lede { color: var(--ink-soft); margin: 0 0 16px; }

.callout {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 18px;
  font-size: 0.92rem;
  color: var(--ink-soft);
  margin-top: 20px;
}

.callout-icon { color: var(--leaf-dark); flex-shrink: 0; margin-top: 2px; }

/* Where your donation goes */
.goes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.goes-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}

.icon-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--leaf-tint);
  color: var(--leaf-dark);
  margin-bottom: 14px;
}

.goes-card h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.goes-card p {
  color: var(--ink-soft);
  font-size: 0.92rem;
  margin: 0;
}

/* Steps */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.steps li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.step-num {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--leaf);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
}

.steps h3 {
  font-size: 1.02rem;
  margin-bottom: 4px;
}

.steps p {
  color: var(--ink-soft);
  font-size: 0.92rem;
  margin: 0;
}

/* Donate card */
.donate-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px;
}

.field-group {
  margin-bottom: 20px;
}

.field-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--ink);
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.amount-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 8px;
}

.amount-btn {
  border: 1.5px solid var(--line);
  background: var(--card);
  border-radius: 12px;
  padding: 12px 8px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  color: var(--ink);
  font-family: var(--font-body);
}

.amount-btn.active {
  border-color: var(--leaf);
  background: var(--leaf-tint);
  color: var(--leaf-dark);
}

.hint {
  font-size: 0.82rem;
  color: var(--ink-soft);
  margin: 6px 0 0;
}

.hint-warn {
  color: var(--danger);
  margin-top: 12px;
}

.input-prefix {
  display: flex;
  align-items: center;
  border: 1.5px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: var(--card);
}

.input-prefix span {
  padding: 0 0 0 14px;
  color: var(--ink-soft);
  font-weight: 600;
}

.input-prefix input {
  border: none;
  outline: none;
  padding: 12px 14px;
  font-size: 0.95rem;
  width: 100%;
  font-family: var(--font-body);
  background: transparent;
}

input[type="text"], textarea {
  width: 100%;
  border: 1.5px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 0.95rem;
  font-family: var(--font-body);
  outline: none;
  background: var(--card);
  color: var(--ink);
  resize: vertical;
}

.method-switch {
  display: inline-flex;
  gap: 4px;
  background: var(--paper-alt);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px;
  margin-bottom: 18px;
}

.method-btn {
  border: none;
  background: transparent;
  padding: 8px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  color: var(--ink-soft);
  font-family: var(--font-body);
}

.method-btn.active {
  background: var(--leaf);
  color: #fff;
}

.payment-footer {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.payment-footer-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.icon-inline { color: var(--leaf-dark); flex-shrink: 0; margin-top: 1px; }

/* Footer */
.site-footer {
  padding: 40px 0 48px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.footer-brand { margin-bottom: 14px; }

.site-footer p { margin: 0 0 6px; }

.organized-by { color: var(--ink); font-weight: 500; margin-top: 10px; }

/* Status banner (post-payment return) */
.status-banner {
  padding: 14px 20px;
  font-size: 0.92rem;
  text-align: center;
  border-bottom: 1px solid var(--line);
}

.status-banner strong { display: block; margin-bottom: 2px; }

.status-banner.status-paid { background: var(--leaf-tint); color: var(--leaf-dark); }
.status-banner.status-pending { background: var(--paper-alt); color: var(--ink-soft); }
.status-banner.status-failed { background: #fbeae5; color: var(--danger); }

/* Checkbox row (anonymous toggle) */
.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--ink-soft);
  margin-bottom: 20px;
  cursor: pointer;
}

.checkbox-row input {
  margin-top: 2px;
  width: 16px;
  height: 16px;
  accent-color: var(--leaf);
  flex-shrink: 0;
}

.btn[disabled], .btn[aria-busy="true"] {
  opacity: 0.7;
  cursor: default;
}

/* Wall of support */
.wall-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
}

.wall-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 18px;
}

.wall-item .wall-name {
  font-weight: 700;
  font-size: 0.92rem;
  margin-bottom: 4px;
}

.wall-item .wall-message {
  font-size: 0.88rem;
  color: var(--ink-soft);
  margin: 0;
}

@media (max-width: 720px) {
  .main-nav { display: none; }
  .field-row { grid-template-columns: 1fr; }
  .amount-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-top { flex-direction: column; }
}

@media (max-width: 480px) {
  .header-right .lang-switch button { padding: 6px 9px; font-size: 0.72rem; }
}