/* =====================
   CSS Variables
===================== */

:root {
  --bg: #ffffff;
  --text: #111111;
  --border: #c9c9c9;
  --accent: #111111;
  --tag-bg: #f2f2f2;
}

body.dark {
  --bg: #0e0e0e;
  --text: #f5f5f5;
  --border: #333333;
  --accent: #ffffff;
  --tag-bg: #1c1c1c;
}

/* =====================
   Base
===================== */

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding-top: 72px;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

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

/* =====================
   Header
===================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 72px;
  padding: 0 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  z-index: 9999;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav a {
  font-weight: 500;
}

/* =====================
   Dark Mode Toggle
===================== */

.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: none;
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: 18px;
  color: var(--text);
  transition: background 0.25s, border 0.25s;
}

.theme-toggle:hover {
  background: var(--tag-bg);
}

body.dark .theme-toggle {
  color: #ffffff;
}

/* =====================
   Home
===================== */

.home-hero {
  min-height: calc(100vh - 72px);
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-inner {
  max-width: 1100px;
  padding: 48px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}


.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.btn {
  padding: 12px 24px;
  border-radius: 999px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn.primary {
  background: var(--accent);
  color: var(--bg);
}

.btn.ghost {
  border: 1px solid var(--border);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

.social-buttons {
  display: flex;
  gap: 16px;
}

.icon-btn {
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: grid;
  place-items: center;
}

.hero-video video {
  width: 100%;
  border-radius: 16px;
}

/* =====================
   List Page
===================== */

.list-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 48px 32px;
}

/* ===== List Item ===== */

.list-item {
  padding: 40px 0;
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: 32px;
  align-items: center;

  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.6s ease,
    transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.list-item.show {
  opacity: 1;
  transform: translateY(0);
}

.list-item.hide {
  opacity: 0;
  transform: translateY(16px);
}

.list-item:not(:last-child) {
  border-bottom: 1px solid var(--border);
}

.list-item .thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 12px;
}

/* =====================
   Tag Filter
===================== */

.tag-filter {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.tag {
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 13px;
  cursor: pointer;
  background: transparent;
  transition:
    background 0.25s ease,
    color 0.25s ease,
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.tag:hover {
  background: var(--tag-bg);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0,0,0,0.08);
}

.tag.active {
  background: var(--accent);
  color: var(--bg);
}

.tag:active {
  transform: scale(0.96);
}

/* =====================
   Detail Page
===================== */

.detail-page {
  max-width: 880px;
  margin: 0 auto;
  padding: 120px 24px 160px;
  position: relative;
  z-index: 1;

  opacity: 0;
}

/* アニメ対象 */

.detail-page.animate {
  opacity: 1;
}

.detail-page.animate > * {
  opacity: 0;
  transform: translateY(16px);
}

.detail-page.animate:not(.show) > * {
  opacity: 0;
  transform: translateY(16px);
}

.detail-page.animate.show > * {
  animation: fadeUp 0.6s ease forwards;
}

.detail-page.animate.show .meta {
  animation-delay: 0.2s;
}

.detail-page.animate.show .media {
  animation-delay: 0.35s;
}

.detail-page.animate.show .content {
  animation-delay: 0.5s;
}

.detail-page h1 {
  font-size: clamp(28px, 4vw, 40px);
  margin-bottom: 24px;
  line-height: 1.3;
  color: var(--text);
}

.detail-page .meta {
  font-size: 14px;
  opacity: 0.7;
  margin-bottom: 48px;
}

.detail-page .media {
  margin: 56px 0;
}

.detail-page video,
.detail-page img {
  width: 100%;
  border-radius: 16px;
}

.detail-page .content {
  font-size: 16px;
  line-height: 1.9;
}

.detail-page .content p {
  margin-bottom: 1.6em;
}

/* =====================
   Animations
===================== */

@keyframes fadeUp {
    from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* Header safety */
.header,
.header * {
  pointer-events: auto;
}

/* =====================
   Mobile Responsive
===================== */

@media (max-width: 768px) {

    .tag-filter {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
  }


  .nav {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

.mobile-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;

  background: var(--bg);
  border-bottom: 1px solid var(--border);

  display: flex;
  flex-direction: column;
  gap: 24px;

  padding: 88px 24px 24px;

  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;

  transition:
    transform 0.35s ease,
    opacity 0.25s ease;

  z-index: 999;
}

.mobile-nav.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}


.mobile-nav.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

  
    /* テキスト全体を中央寄せ */
  .hero-text {
    text-align: center;
    align-items: center;
  }

  /* ボタン中央寄せ */
  .hero-buttons {
    justify-content: center;
  }

  /* SNSアイコン中央寄せ */
  .social-buttons {
    justify-content: center;
  }

  .hero-inner {
    display: flex;
    flex-direction: column;
    padding: 24px;
    gap: 32px;
  }

  .hero-video {
    order: 1; 
  }

  .hero-text {
    order: 2;
    margin-top: 16px;
  }

  body {
    padding-top: 64px;
  }

  /* Header */
  .header {
    height: 64px;
    padding: 0 16px;
  }

  .nav {
    gap: 20px;
  }

  /* Home */
  .home-hero {
    padding: 32px 0;
  }

  .hero-inner {
    padding: 24px;
    gap: 32px;
  }

  .hero-video {
    order: 2;
  }

  .hero-text {
    order: 1;
  }

  /* List */
  .list-page {
    padding: 32px 16px;
  }

  .list-item {
    grid-template-columns: 1fr;
  }

  .list-item .thumb {
    max-width: 100%;
  }

  /* Detail */
  .detail-page {
    padding: 96px 16px 120px;
  }

  .detail-page h1 {
    font-size: clamp(22px, 6vw, 30px);
  }
}

/* ===== Hamburger ===== */

.menu-toggle {
  display: none;
  font-size: 24px;
  cursor: pointer;
}

/* Mobile Nav */ /*
.mobile-nav {
  display: none;
}

/* ===== Mobile ===== */



/* =====================
   Home Animation
===================== */

.home-hero.animate .hero-text > * {
  opacity: 0;
  transform: translateY(16px);
}

.home-hero.animate.show .hero-text > * {
  animation: fadeUp 0.6s forwards;
}

.home-hero.animate.show .hero-text > *:nth-child(1) {
  animation-delay: 0.1s;
}

.home-hero.animate.show .hero-text > *:nth-child(2) {
  animation-delay: 0.25s;
}

.home-hero.animate.show .hero-text > *:nth-child(3) {
  animation-delay: 0.4s;
}

.home-hero.animate.show .hero-text > *:nth-child(4) {
  animation-delay: 0.55s;
}

/* 動画も少し遅らせて出す */
.home-hero.animate .hero-video {
  opacity: 0;
  transform: translateY(24px);
}

.home-hero.animate.show .hero-video {
  animation: fadeUp 0.8s forwards;
  animation-delay: 0.6s;
}

/* =====================
   Hamburger FINAL FIX
===================== */

.menu-toggle {
  display: none;
  font-size: 24px;
  cursor: pointer;
  user-select: none;
}

@media (max-width: 768px) {
  .menu-toggle {
    display: block ;
  }
}

/* PCではモバイルメニューを完全に殺す */
.mobile-nav {
  display: none;
}

/* モバイル時だけ復活 */
@media (max-width: 768px) {
  .mobile-nav {
    display: flex;
  }

  .pc-nav {
    display: none;
  }
}