:root {
  color-scheme: light;
  --bg: #f6f2ed;
  --card-bg: #ffffff;
  --text: #2f2b28;
  --muted: #6b625b;
  --accent: #4f8a6f;
  --accent-soft: rgba(79, 138, 111, 0.2);
  --border: rgba(47, 43, 40, 0.12);
  --shadow: 0 16px 40px rgba(47, 43, 40, 0.08);
  --radius: 16px;
  --radius-pill: 999px;
  --max-width: 1120px;
  --space-1: 8px;
  --space-2: 12px;
  --space-3: 16px;
  --space-4: 20px;
  --space-5: 28px;
  --space-6: 36px;
  --space-7: 48px;
  --space-8: 64px;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

main {
  flex: 1 0 auto;
  padding: var(--space-6) var(--space-4) var(--space-8);
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: var(--space-2);
  background: #ffffff;
  color: var(--text);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-pill);
  z-index: 1000;
  border: 1px solid var(--border);
}

.skip-link:focus-visible {
  left: var(--space-3);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background: rgba(246, 242, 237, 0.92);
  border-bottom: 1px solid var(--border);
}

#site-header,
#site-footer {
  flex: 0 0 auto;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.wordmark {
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: lowercase;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
}

.nav-links a {
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.language-toggle {
  border: 1px solid var(--border);
  background: #ffffff;
  color: var(--text);
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.language-toggle:hover,
.language-toggle:focus-visible {
  border-color: var(--accent);
  transform: translateY(-1px);
}

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

.hero {
  display: grid;
  gap: var(--space-4);
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin: 0;
}

.hero p {
  margin: 0;
  color: var(--muted);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #ffffff;
  font-weight: 600;
  min-height: 44px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.button.secondary {
  background: transparent;
  color: var(--accent);
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(79, 138, 111, 0.2);
}

.section {
  margin-top: var(--space-8);
}

.section h2 {
  margin-top: 0;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
}

.card-grid {
  display: grid;
  gap: var(--space-4);
}

.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: var(--space-4);
  box-shadow: var(--shadow);
  border: 1px solid rgba(79, 138, 111, 0.08);
}

.card h3 {
  margin-top: 0;
}

.form-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: var(--space-4);
  box-shadow: var(--shadow);
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: var(--space-3);
}

.form-field input,
.form-field textarea {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  font-size: 1rem;
}

.form-field textarea {
  min-height: 140px;
  resize: vertical;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.form-status {
  margin-top: var(--space-2);
  font-weight: 600;
}

.form-warning {
  margin-top: var(--space-2);
  background: rgba(241, 196, 15, 0.18);
  border-left: 4px solid #f1c40f;
  padding: var(--space-2) var(--space-3);
  border-radius: 10px;
  color: #5d4b00;
}

.giscus-shell {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: var(--space-4);
  box-shadow: var(--shadow);
  border: 1px solid rgba(79, 138, 111, 0.08);
  width: 100%;
  min-height: 240px;
  overflow: visible;
}

.giscus,
.giscus-frame {
  width: 100%;
}

.giscus-frame {
  border: 0;
}

.site-footer {
  background: #1d1a18;
  color: #f4efe9;
  padding: var(--space-6) var(--space-4);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-top {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-note h3 {
  margin: 0 0 var(--space-2) 0;
}

.footer-note p {
  margin: 0;
  color: rgba(244, 239, 233, 0.82);
}

.social-bubbles {
  display: flex;
  gap: var(--space-2);
  align-items: center;
  justify-content: flex-end;
}

.social-bubble {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(79, 138, 111, 0.35);
  color: #d9efe5;
  background:
    radial-gradient(circle at 30% 25%, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0) 45%),
    radial-gradient(circle at 50% 60%, #1b1b1b, #050505 70%);
  box-shadow:
    inset 0 2px 6px rgba(255, 255, 255, 0.1),
    inset 0 -8px 14px rgba(0, 0, 0, 0.55),
    0 0 10px rgba(79, 138, 111, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.social-bubble svg {
  width: 18px;
  height: 18px;
  display: block;
  fill: currentColor;
}

.social-bubble:hover,
.social-bubble:focus-visible {
  transform: scale(1.06);
}

.social-bubble:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.social-bubble.is-instagram:hover,
.social-bubble.is-instagram:focus-visible {
  border-color: #e1306c;
  color: #e1306c;
  box-shadow:
    inset 0 2px 6px rgba(255, 255, 255, 0.1),
    inset 0 -8px 14px rgba(0, 0, 0, 0.55),
    0 0 12px rgba(225, 48, 108, 0.6);
}

.social-bubble.is-facebook:hover,
.social-bubble.is-facebook:focus-visible {
  border-color: #1877f2;
  color: #1877f2;
  box-shadow:
    inset 0 2px 6px rgba(255, 255, 255, 0.1),
    inset 0 -8px 14px rgba(0, 0, 0, 0.55),
    0 0 12px rgba(24, 119, 242, 0.6);
}

.social-bubble.is-youtube:hover,
.social-bubble.is-youtube:focus-visible {
  border-color: #ff0000;
  color: #ff0000;
  box-shadow:
    inset 0 2px 6px rgba(255, 255, 255, 0.1),
    inset 0 -8px 14px rgba(0, 0, 0, 0.55),
    0 0 12px rgba(255, 0, 0, 0.6);
}

.social-bubble.is-linkedin:hover,
.social-bubble.is-linkedin:focus-visible {
  border-color: #0a66c2;
  color: #0a66c2;
  box-shadow:
    inset 0 2px 6px rgba(255, 255, 255, 0.1),
    inset 0 -8px 14px rgba(0, 0, 0, 0.55),
    0 0 12px rgba(10, 102, 194, 0.6);
}

.footer-bottom {
  text-align: center;
  border-top: 1px solid rgba(244, 239, 233, 0.1);
  padding-top: var(--space-3);
  color: rgba(244, 239, 233, 0.7);
  font-size: 0.95rem;
}

.page-title {
  margin-top: 0;
  font-size: clamp(2rem, 4vw, 2.8rem);
}

.listing {
  padding-left: 1.2rem;
  color: var(--muted);
}

.notice {
  background: rgba(79, 138, 111, 0.12);
  border-left: 4px solid var(--accent);
  padding: var(--space-2) var(--space-3);
  border-radius: 10px;
}

@media (min-width: 768px) {
  .header-inner {
    flex-wrap: nowrap;
  }

  .hero {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: center;
  }

  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-top {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .social-bubble {
    width: 40px;
    height: 40px;
  }
}

@media (min-width: 1024px) {
  .card-grid.four {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

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