/* ============================================================
   KOZAROCKS 2026 — Components
   現行サイトのコンポーネントを再利用可能な形に整理。
   tokens.css → base.css → components.css の順で読み込む。
   ============================================================ */

/* ===== Top Nav ============================================ */
.top-nav {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: rgba(40, 25, 90, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--hairline);
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.top-nav::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--grad-brand);
}
.brand { display: flex; align-items: center; }
.brand-logo { height: 60px; width: auto; }
.nav-right { display: flex; align-items: center; gap: 24px; }
.nav-anchors { display: flex; gap: 20px; align-items: center; }
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  position: relative;
  z-index: calc(var(--z-nav) + 2);
  border: 1px solid var(--hairline);
  background: rgba(8, 6, 30, 0.40);
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: var(--text-strong);
  transition: transform var(--dur-base) var(--ease), opacity var(--dur-base) var(--ease);
}
.lang-switch {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--hairline);
  background: rgba(8, 6, 30, 0.34);
}
.lang-link {
  font-family: var(--font-serif);
  font-size: var(--fs-label);
  letter-spacing: 0.08em;
  color: var(--text-body);
  padding: 8px 12px;
}
.lang-link.is-current {
  background: var(--lp-teal);
  color: var(--text-strong);
}
.nav-anchor {
  font-family: var(--font-serif);
  font-size: var(--fs-label);
  letter-spacing: 3px;
  color: var(--text-body);
  transition: color var(--dur-fast);
}
.nav-anchor:hover { color: var(--lp-teal-bright); }
@media (max-width: 520px) {
  .lang-link { padding: 8px 10px; }
}
@media (max-width: 768px) {
  body.menu-open { overflow: hidden; }
  .top-nav { padding: 12px 16px; }
  .brand { position: relative; z-index: calc(var(--z-nav) + 2); }
  .brand-logo { height: 40px; max-width: 240px; object-fit: contain; }
  .menu-toggle { display: block; }
  .top-nav.is-open .menu-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .top-nav.is-open .menu-toggle span:nth-child(2) { opacity: 0; }
  .top-nav.is-open .menu-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .nav-right {
    position: absolute;
    inset: 0;
    z-index: calc(var(--z-nav) + 1);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    gap: 24px;
    min-height: 100dvh;
    padding: 112px 24px 48px;
    background: var(--lp-bg-dark);
    transform: translateX(100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--dur-base) var(--ease), opacity var(--dur-base) var(--ease);
  }
  .top-nav.is-open .nav-right {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
  }
  .top-nav.is-open {
    position: fixed;
    inset: 0;
    height: 100dvh;
    align-items: flex-start;
    background: var(--lp-bg-dark);
  }
  .nav-anchors {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: min(420px, 100%);
    margin: 0 auto;
    border-top: 1px solid var(--hairline);
  }
  .nav-anchor {
    font-size: 22px;
    padding: 14px 0;
    border-bottom: 1px solid var(--hairline);
    color: var(--text-strong);
  }
  .lang-switch {
    width: min(420px, 100%);
    margin: 0 auto;
    justify-content: center;
  }
  .lang-link {
    flex: 1;
    text-align: center;
    padding: 14px 16px;
  }
  .nav-right > .btn {
    width: min(420px, 100%);
    margin: 0 auto;
    justify-content: center;
    padding: 18px 24px;
  }
}
@media (max-width: 420px) {
  .brand-logo { height: 34px; max-width: 210px; }
  .nav-right { padding-top: 96px; gap: 20px; }
  .nav-anchor { font-size: 20px; padding: 12px 0; }
}

/* ===== Buttons ============================================ */
/* ベース。modifier で色を変える。 */
.btn {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: var(--fs-label);
  letter-spacing: 0.06em;
  padding: 10px 20px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border-radius: var(--radius-0);
  transition: transform var(--dur-fast) var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translate(-1px, -1px); }

.btn--teal { background: var(--lp-teal); color: #fff; box-shadow: var(--shadow-hard-sm); }
.btn--pink { background: var(--lp-pink); color: #fff; box-shadow: 4px 5px 0 var(--lp-teal); }

/* 大型CTA (ヒーロー等) */
.btn--lg { font-size: 18px; padding: 24px 48px; gap: 14px; backdrop-filter: blur(6px); }
.btn--primary { background: var(--lp-teal); color: #fff; box-shadow: var(--shadow-hard-md); }
.btn--secondary {
  background: rgba(8, 6, 30, 0.65);
  color: var(--lp-teal-bright);
  border: 1.5px solid var(--lp-teal);
  box-shadow: 6px 7px 0 rgba(0, 175, 160, 0.45), var(--shadow-soft);
}
@media (max-width: 640px) {
  .btn--lg { width: 100%; justify-content: center; padding: 20px 32px; font-size: 16px; }
}

/* ===== Gradient Line Divider ============================== */
.gradient-line {
  height: 2px;
  width: min(612px, 90%);
  margin: 0 auto;
  background: var(--grad-brand);
}

/* ===== Section Head ====================================== */
.sec-head { margin-bottom: 36px; }
.sec-label {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: var(--fs-label);
  letter-spacing: var(--ls-label);
  color: var(--lp-teal);
  text-shadow: var(--glow-teal);
  margin-bottom: 12px;
}
.sec-title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: var(--fs-h2);
  letter-spacing: 0.04em;
  color: var(--text-strong);
  line-height: var(--lh-head);
  margin-bottom: 14px;
}
.sec-intro {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 2;
  color: var(--text-body);
  max-width: 740px;
}

/* ===== Card ============================================== */
.card {
  background: var(--lp-card-bg);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-0);
  overflow: hidden;
  transition: transform var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hard-md); }
.card-body { padding: 24px; }
.card-title { font-family: var(--font-serif); font-weight: 700; font-size: var(--fs-h3); margin-bottom: 8px; }
.card-meta { font-size: var(--fs-label); color: var(--text-muted); letter-spacing: 2px; }

/* バッジ (カテゴリ・番号タグ) */
.badge {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: var(--fs-label);
  letter-spacing: 2px;
  padding: 4px 12px;
  background: var(--lp-pink);
  color: #fff;
}
.badge--teal { background: var(--lp-teal); }
.badge--outline { background: transparent; border: 1px solid var(--lp-teal); color: var(--lp-teal-bright); }

/* ===== Ticker (流れる帯) ================================== */
.ticker {
  overflow: hidden;
  white-space: nowrap;
  padding: 10px 0;
  background: var(--lp-teal);
  position: relative;
  z-index: 1;
}
.ticker-track { display: inline-block; animation: ticker-scroll 22s linear infinite; }
.ticker-track span {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: var(--fs-label);
  letter-spacing: 3px;
  color: var(--lp-bg-dark);
  padding: 0 24px;
}
@keyframes ticker-scroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ===== Reveal on scroll ================================== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity var(--dur-reveal) var(--ease), transform var(--dur-reveal) var(--ease); }
.reveal.on { opacity: 1; transform: translateY(0); }
.d1 { transition-delay: 0.1s; }
.d2 { transition-delay: 0.2s; }
.d3 { transition-delay: 0.3s; }

/* ===== Footer ============================================ */
.site-footer {
  background: var(--lp-bg-dark);
  border-top: 1px solid var(--hairline);
  padding: 48px 24px;
  text-align: center;
}
.site-footer::before {
  content: '';
  display: block;
  height: 2px;
  width: min(612px, 90%);
  margin: 0 auto 40px;
  background: var(--grad-brand);
}
.footer-copy { font-size: var(--fs-label); letter-spacing: 2px; color: var(--text-muted); }

/* ===== Grid utilities ==================================== */
.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 880px) { .grid--3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid--2, .grid--3 { grid-template-columns: 1fr; } }

/* ===== Bonus box (criteria 加点ポイント) =================== */
.bonus-box {
  position: relative;
  margin-top: var(--sp-7);
  padding: clamp(20px, 3vw, 32px);
  background: rgba(0, 175, 160, 0.08);
  border: 1px solid rgba(0, 175, 160, 0.45);
  border-left-width: 4px;
}
.bonus-box-label {
  display: inline-block;
  margin-bottom: var(--sp-3);
  padding: 6px 12px;
  background: var(--lp-teal);
  color: #fff;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1;
}
.bonus-box-lead {
  margin: 0 0 var(--sp-3);
  font-size: var(--fs-body, 15px);
  line-height: 1.7;
  color: var(--text-strong);
}
.bonus-box-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.bonus-box-list li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 6px;
  font-size: var(--fs-body, 15px);
  line-height: 1.7;
  color: var(--text-body);
}
.bonus-box-list li::before {
  content: "+";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--lp-teal-bright);
  font-weight: 700;
}