/* =========================================================
   Go Love Nippon — Tokyo Tourism Platform
   Global Stylesheet
   ========================================================= */

:root {
  --color-bg: #fdfcf9;
  --color-bg-alt: #f4efe6;
  --color-ink: #1a1a1a;
  --color-ink-soft: #4a4a4a;
  --color-muted: #767676;
  --color-accent: #c8102e;     /* Tokyo red / sun-disc red */
  --color-accent-dark: #9a0c24;
  --color-gold: #b8860b;
  --color-line: #e6e1d6;
  --color-card: #ffffff;
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 18px 50px rgba(0, 0, 0, 0.12);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 22px;
  --font-sans: "Helvetica Neue", "Hiragino Sans", "Yu Gothic", "Noto Sans JP", system-ui, -apple-system, sans-serif;
  --font-serif: "Cormorant Garamond", "Times New Roman", "Yu Mincho", "Hiragino Mincho ProN", serif;
  --max-width: 1200px;
  --transition: 0.3s ease;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--color-accent-dark); }

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  line-height: 1.25;
  color: var(--color-ink);
  font-weight: 600;
  letter-spacing: 0.5px;
}
h1 { font-size: clamp(2rem, 5vw, 3.4rem); margin: 0 0 0.6em; }
h2 { font-size: clamp(1.6rem, 3.6vw, 2.4rem); margin: 0 0 0.6em; }
h3 { font-size: clamp(1.2rem, 2.4vw, 1.5rem); margin: 0 0 0.5em; }

p { margin: 0 0 1em; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header / Navigation ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(253, 252, 249, 0.95);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--color-line);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: 1px;
}
.brand-mark {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--color-accent);
  display: inline-block; flex-shrink: 0;
  box-shadow: 0 0 0 4px rgba(200, 16, 46, 0.12);
}
.brand:hover { color: var(--color-accent); }

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 26px; height: 2px;
  background: var(--color-ink);
  margin: 5px 0;
  transition: var(--transition);
}

.nav-list {
  list-style: none;
  display: flex;
  gap: 22px;
  margin: 0; padding: 0;
  align-items: center;
}
.nav-list a {
  color: var(--color-ink-soft);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  padding: 6px 2px;
}
.nav-list a:hover,
.nav-list a.active {
  color: var(--color-accent);
}
.nav-list a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}
.nav-cta {
  background: var(--color-accent);
  color: #fff !important;
  padding: 8px 16px !important;
  border-radius: 999px;
}
.nav-cta:hover { background: var(--color-accent-dark); color: #fff !important; }
.nav-cta::after { display: none !important; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 78vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  padding: 120px 24px 100px;
  background:
    linear-gradient(135deg, rgba(0,0,0,0.55), rgba(0,0,0,0.35)),
    radial-gradient(ellipse at 20% 30%, #c8102e 0%, transparent 60%),
    linear-gradient(160deg, #1a1a2e 0%, #2a1a3a 50%, #c8102e 110%);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 70% 35%, rgba(255,255,255,0.08) 0 1px, transparent 2px),
    radial-gradient(circle at 30% 70%, rgba(255,255,255,0.06) 0 1px, transparent 2px),
    radial-gradient(circle at 85% 80%, rgba(255,255,255,0.05) 0 1px, transparent 2px);
  background-size: 4px 4px, 6px 6px, 8px 8px;
  opacity: 0.5;
}
.hero-content {
  position: relative;
  max-width: 860px;
  animation: fadeUp 1s ease both;
}
.hero-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.8);
  border: 1px solid rgba(255,255,255,0.3);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
}
.hero h1 {
  color: #fff;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  margin-bottom: 0.4em;
  text-shadow: 0 2px 24px rgba(0,0,0,0.4);
}
.hero h1 .accent { color: #ffd700; font-style: italic; }
.hero p.lead {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: rgba(255,255,255,0.92);
  max-width: 640px;
  margin: 0 auto 32px;
}
.hero-cta {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

/* page hero — smaller variant for non-home pages */
.page-hero {
  min-height: 46vh;
  padding: 100px 24px 80px;
}
.page-hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  letter-spacing: 0.4px;
  cursor: pointer;
  border: 0;
  transition: all var(--transition);
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.6);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.12);
  color: #fff;
  border-color: #fff;
}
.btn-outline {
  background: transparent;
  color: var(--color-accent);
  border: 1.5px solid var(--color-accent);
}
.btn-outline:hover {
  background: var(--color-accent);
  color: #fff;
}

/* ---------- Section ---------- */
.section {
  padding: 90px 0;
}
.section-alt { background: var(--color-bg-alt); }
.section-dark {
  background: #1a1a1a;
  color: #f1efe9;
}
.section-dark h1, .section-dark h2, .section-dark h3 { color: #fff; }
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}
.section-head .kicker {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}
.section-head p {
  color: var(--color-ink-soft);
  font-size: 1.05rem;
}

/* ---------- Card grid ---------- */
.grid {
  display: grid;
  gap: 28px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.card {
  background: var(--color-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.card-media {
  aspect-ratio: 4 / 3;
  width: 100%;
  background: linear-gradient(135deg, #2a1a3a, #c8102e);
  position: relative;
  overflow: hidden;
}
.card-media .placeholder-label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.85);
  font-family: var(--font-serif);
  font-size: 1.4rem;
  letter-spacing: 1px;
  text-shadow: 0 2px 12px rgba(0,0,0,0.35);
  padding: 16px;
  text-align: center;
}
.card-body {
  padding: 22px 24px 26px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.card-body h3 { margin-bottom: 8px; }
.card-body p {
  color: var(--color-ink-soft);
  font-size: 0.97rem;
  flex: 1;
}
.card-link {
  margin-top: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.5px;
}
.card-link::after { content: " →"; transition: margin-left var(--transition); }
.card-link:hover::after { margin-left: 4px; }

/* themed media gradients (placeholders without external images) */
.media-shinjuku    { background: linear-gradient(135deg, #0f0c29, #302b63 45%, #c8102e); }
.media-asakusa     { background: linear-gradient(135deg, #6a040f, #d00000 60%, #ffba08); }
.media-akihabara   { background: linear-gradient(135deg, #240046, #5a189a 50%, #ff006e); }
.media-tokyo-tower { background: linear-gradient(135deg, #0d1b2a, #1b263b 50%, #e63946); }
.media-food        { background: linear-gradient(135deg, #ffba08, #f48c06 50%, #d00000); }
.media-hidden      { background: linear-gradient(135deg, #1b4332, #40916c 55%, #95d5b2); }
.media-skyline     { background: linear-gradient(135deg, #03071e, #370617 50%, #c8102e); }
.media-senso       { background: linear-gradient(135deg, #6a040f, #e85d04 50%, #ffba08); }
.media-go          { background: linear-gradient(135deg, #1a1a2e, #16213e 50%, #c8102e); }

/* ---------- Featured / Two-col ---------- */
.split {
  display: grid;
  gap: 56px;
  align-items: center;
  grid-template-columns: 1fr 1fr;
}
.split.reverse { direction: rtl; }
.split.reverse > * { direction: ltr; }
.split img,
.split .visual {
  width: 100%;
  aspect-ratio: 5 / 4;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  background: var(--color-bg-alt);
}
@media (max-width: 800px) {
  .split { grid-template-columns: 1fr; gap: 32px; }
}

/* ---------- About / Go's Picks ---------- */
.about-quote {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3vw, 2rem);
  line-height: 1.4;
  color: var(--color-ink);
  border-left: 3px solid var(--color-accent);
  padding-left: 24px;
  margin: 32px 0;
  font-style: italic;
}

/* ---------- Spotlight / list ---------- */
.spotlight {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  margin-top: 32px;
}
.spotlight-item {
  background: var(--color-card);
  padding: 22px 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-line);
  transition: transform var(--transition);
}
.spotlight-item:hover { transform: translateY(-4px); }
.spotlight-item h4 {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-size: 1.15rem;
}
.spotlight-item small {
  color: var(--color-accent);
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-size: 0.7rem;
}
.spotlight-item p {
  margin: 8px 0 0;
  color: var(--color-ink-soft);
  font-size: 0.94rem;
}

/* ---------- YouTube embed ---------- */
.video-frame {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  border: 0;
}

/* ---------- Blog promo ---------- */
.blog-promo {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
}
.blog-promo .visual { min-height: 320px; }
@media (max-width: 800px) {
  .blog-promo { grid-template-columns: 1fr; }
}

/* ---------- CTA banner ---------- */
.cta-banner {
  background: linear-gradient(135deg, #c8102e, #6a040f);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 56px 40px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}
.cta-banner h2 { color: #fff; }
.cta-banner p { color: rgba(255,255,255,0.92); }

/* ---------- SNS row ---------- */
.sns-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin-top: 28px;
}
.sns-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  color: var(--color-ink);
  border: 1px solid var(--color-line);
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition);
}
.sns-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.sns-btn.youtube { background: #ff0000; color: #fff; border-color: #ff0000; }
.sns-btn.youtube:hover { background: #cc0000; color: #fff; border-color: #cc0000; }
.sns-btn.ameblo { background: #00b900; color: #fff; border-color: #00b900; }
.sns-btn.ameblo:hover { background: #009900; color: #fff; border-color: #009900; }

/* ---------- Article body ---------- */
.article-body {
  max-width: 760px;
  margin: 0 auto;
}
.article-body h2 { margin-top: 1.6em; }
.article-body h3 { margin-top: 1.4em; }
.article-body ul { padding-left: 1.2em; }
.article-body li { margin-bottom: 8px; }
.lead-paragraph {
  font-size: 1.15rem;
  color: var(--color-ink-soft);
  font-family: var(--font-serif);
  font-style: italic;
  border-left: 3px solid var(--color-accent);
  padding-left: 20px;
  margin-bottom: 32px;
}

.feature-img {
  aspect-ratio: 16/9;
  border-radius: var(--radius-md);
  margin: 32px 0;
  box-shadow: var(--shadow-md);
}

.info-box {
  background: var(--color-bg-alt);
  border-left: 4px solid var(--color-accent);
  padding: 22px 26px;
  border-radius: var(--radius-sm);
  margin: 28px 0;
}
.info-box h4 {
  margin: 0 0 10px;
  font-size: 1rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-accent);
}

.related-grid { margin-top: 56px; }
.related-grid h2 { text-align: center; margin-bottom: 32px; }

/* ---------- Footer ---------- */
.site-footer {
  background: #111;
  color: #cfcfcf;
  padding: 60px 0 24px;
  margin-top: 80px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding: 0 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}
.footer-brand { font-family: var(--font-serif); font-size: 1.4rem; color: #fff; margin-bottom: 12px; }
.footer-grid h4 { color: #fff; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 2px; margin-bottom: 16px; font-family: var(--font-sans); font-weight: 600; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 8px; }
.footer-grid a { color: #cfcfcf; font-size: 0.95rem; }
.footer-grid a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid #2b2b2b;
  margin-top: 48px;
  padding: 22px 24px 0;
  max-width: var(--max-width);
  margin-left: auto; margin-right: auto;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-size: 0.85rem; color: #888;
}
@media (max-width: 800px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

/* ---------- Animations ---------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Mobile nav ---------- */
@media (max-width: 880px) {
  .nav-toggle { display: block; }
  .nav-list {
    position: absolute;
    top: 100%;
    right: 0; left: 0;
    background: #fff;
    flex-direction: column;
    gap: 0;
    border-top: 1px solid var(--color-line);
    box-shadow: var(--shadow-md);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition);
  }
  .nav-list.open {
    max-height: 80vh;
    padding: 8px 0;
  }
  .nav-list li {
    width: 100%;
    border-bottom: 1px solid var(--color-line);
  }
  .nav-list li:last-child { border-bottom: 0; }
  .nav-list a {
    display: block;
    padding: 16px 24px;
  }
  .nav-list a.active::after { display: none; }
  .nav-cta { margin: 12px 24px; text-align: center; }
}

@media (max-width: 600px) {
  .section { padding: 64px 0; }
  .hero { padding: 100px 20px 80px; min-height: 70vh; }
  .cta-banner { padding: 40px 24px; }
}

/* ---------- Accessibility ---------- */
:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 4px;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}