/* ============================================================
   NEXR ARTS — GLOBAL STYLES
   全ページ共通：ヘッダー・フッター・ボタン・スクロールリビール・ユーティリティ
   top.css から全ページに必要な部分を抽出
   ============================================================ */

/* ====================================================
   HEADER / NAVIGATION
   ==================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-header);
  height: var(--nav-height);
  background: rgba(250, 250, 248, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.site-header.scrolled {
  background: rgba(250, 250, 248, 0.98);
  box-shadow: 0 2px 20px rgba(0,0,0,0.06);
}

.header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 48px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.site-logo__img {
  height: 30px;
  width: auto;
  display: block;
}

/* Desktop Nav */
.site-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

/* WP nav_menu が出力する ul/li 構造への対応 */
.site-nav .site-nav__menu {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav .site-nav__menu li {
  display: flex;
}

/* リンクスタイル（直接 a と wp_nav_menu の a 両方に適用） */
.site-nav > a,
.site-nav .site-nav__menu a {
  font-family: var(--font-sans);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--color-text-mid);
  position: relative;
  padding-bottom: 3px;
  transition: color 0.2s ease;
  text-decoration: none;
}

.site-nav > a::after,
.site-nav .site-nav__menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width 0.3s ease;
}

.site-nav > a:hover,
.site-nav .site-nav__menu a:hover {
  color: var(--color-accent);
}

.site-nav > a:hover::after,
.site-nav .site-nav__menu a:hover::after {
  width: 100%;
}

/* ショップボタン */
.site-nav .btn-shop {
  padding: 8px 20px;
  background: var(--color-accent);
  color: var(--color-white) !important;
  font-size: 12px;
  letter-spacing: 0.12em;
  transition: background 0.25s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.site-nav .btn-shop::after {
  display: none;
}

.site-nav .btn-shop:hover {
  background: var(--color-accent-dark);
  color: var(--color-white) !important;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: transparent;
  border: none;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--color-text);
  transition: all 0.3s ease;
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  width: 100%;
  height: calc(100vh - var(--nav-height));
  background: var(--color-bg);
  z-index: 999;
  padding: 48px;
  flex-direction: column;
  gap: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.mobile-nav.open {
  display: flex;
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav a {
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--color-text);
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
  text-decoration: none;
}

/* ====================================================
   FOOTER
   ==================================================== */
.site-footer {
  background: var(--color-text);
  color: var(--color-white);
  padding: 80px 0 40px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand__logo {
  margin-bottom: 20px;
}

.footer-brand__logo img {
  height: 28px;
  width: auto;
  display: block;
  filter: brightness(0) invert(1);
}

.footer-brand__tagline {
  font-family: var(--font-serif);
  font-size: 13px;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.06em;
  margin-bottom: 28px;
  line-height: 1.8;
}

.footer-brand__sns {
  display: flex;
  gap: 16px;
}

.footer-sns-link {
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  transition: all 0.25s ease;
}

.footer-sns-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(74,124,143,0.1);
}

.footer-sns-link img {
  width: 18px;
  height: 18px;
  display: block;
  filter: brightness(0) invert(0.65);
  transition: filter 0.25s ease;
}

.footer-sns-link:hover img {
  filter: brightness(0) invert(1);
}

.footer-nav__title {
  font-size: 11px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 20px;
}

.footer-nav__links {
  display: flex;
  flex-direction: column;
  gap: 12px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-nav__links a {
  font-size: 13px;
  color: rgba(255,255,255,0.65);
  letter-spacing: 0.04em;
  transition: color 0.2s ease;
  text-decoration: none;
}

.footer-nav__links a:hover {
  color: var(--color-white);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.footer-bottom__copy {
  font-size: 12px;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.06em;
}

.footer-bottom__links {
  display: flex;
  gap: 28px;
}

.footer-bottom__links a {
  font-size: 12px;
  color: rgba(255,255,255,0.35);
  letter-spacing: 0.04em;
  transition: color 0.2s ease;
  text-decoration: none;
}

.footer-bottom__links a:hover {
  color: rgba(255,255,255,0.7);
}

/* ====================================================
   SECTION HEADER（全内部ページ共通）
   ==================================================== */
.section-header {
  margin-bottom: 64px;
}

.section-header--center {
  text-align: center;
}

.section-label {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 18px;
  position: relative;
}

.section-label::after {
  content: '';
  display: inline-block;
  width: 32px;
  height: 1px;
  background: var(--color-accent);
  vertical-align: middle;
  margin-left: 12px;
}

.section-header--center .section-label {
  display: block;
}

.section-header--center .section-label::after {
  display: none;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 400;
  letter-spacing: 0.08em;
  line-height: 1.5;
  color: var(--color-text);
}

.section-title--lg {
  font-size: 38px;
}

.section-desc {
  margin-top: 24px;
  font-size: 15px;
  color: var(--color-text-mid);
  line-height: 2.1;
  max-width: 580px;
}

.section-header--center .section-desc {
  margin: 24px auto 0;
}

/* ====================================================
   BUTTONS（全ページ共通）
   ==================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 36px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--color-accent-dark);
  color: var(--color-white);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-dark);
}

.btn-outline:hover {
  background: var(--color-text);
  color: var(--color-white);
  border-color: var(--color-text);
}

.btn-outline--white {
  background: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255,255,255,0.5);
}

.btn-outline--white:hover {
  background: var(--color-white);
  color: var(--color-text);
}

.btn-gray {
  background: #EAEAE6;
  color: var(--color-text-mid);
  border: 1px solid var(--color-border-dark);
}

.btn-gray:hover {
  background: #DCDCD8;
  color: var(--color-text);
  border-color: #BCBCB6;
}

.btn-arrow::after {
  content: '→';
  font-size: 14px;
  transition: transform 0.3s ease;
}

.btn-arrow:hover::after {
  transform: translateX(4px);
}

/* ====================================================
   クリエイター SNS リンク
   フッターの .footer-sns-link を明るい背景向けにオーバーライド
   ==================================================== */
.creator-sns-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.creator-sns-links .footer-sns-link {
  border-color: var(--color-border-dark);
}

.creator-sns-links .footer-sns-link img {
  filter: none;
  opacity: 0.9;
}

.creator-sns-links .footer-sns-link:hover {
  border-color: var(--color-accent);
  background: var(--color-accent-light);
}

.creator-sns-links .footer-sns-link:hover img {
  filter: none;
  opacity: 1;
}

/* ====================================================
   SCROLL REVEAL（全ページ共通）
   ==================================================== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ====================================================
   UTILITIES
   ==================================================== */
.text-center { text-align: center; }
.mt-4  { margin-top: 16px; }
.mt-6  { margin-top: 24px; }
.mt-8  { margin-top: 32px; }
.mt-12 { margin-top: 48px; }
.mt-16 { margin-top: 64px; }

/* ====================================================
   RESPONSIVE — 1150px（ハンバーガー切り替え）
   ==================================================== */
@media (max-width: 1150px) {
  .site-nav {
    display: none;
  }

  .hamburger {
    display: flex;
  }
}

/* ====================================================
   RESPONSIVE — 1024px（タブレット）
   ==================================================== */
@media (max-width: 1024px) {
  .header-inner {
    padding: 0 32px;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

/* ====================================================
   RESPONSIVE — 768px（スマホ）
   ==================================================== */
@media (max-width: 768px) {
  .header-inner {
    padding: 0 20px;
  }

  .section-title     { font-size: 24px; }
  .section-title--lg { font-size: 26px; }

  .footer-top    { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 16px; }
  .footer-bottom__links { flex-wrap: wrap; gap: 16px; }
}

/* ====================================================
   PAGE HERO（内部ページ共通：about / collectors-pass / thanks 等）
   ==================================================== */
.page-hero {
  padding: calc(var(--nav-height) + 64px) 0 64px;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.page-breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--color-text-light);
  letter-spacing: 0.06em;
  margin-bottom: 28px;
}

.page-breadcrumb a {
  color: var(--color-accent);
  transition: opacity 0.2s ease;
}

.page-breadcrumb a:hover {
  opacity: 0.7;
}

.page-breadcrumb__sep {
  font-size: 14px;
  color: var(--color-border-dark);
}

.page-hero__label {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.page-hero__title {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 400;
  letter-spacing: 0.08em;
  line-height: 1.4;
  color: var(--color-text);
  margin-bottom: 20px;
}

.page-hero__desc {
  font-size: 15px;
  color: var(--color-text-mid);
  line-height: 2.1;
  max-width: 600px;
}

/* ====================================================
   THANKS PAGE（送信完了ページ共通）
   ==================================================== */
.thanks-section {
  padding: calc(var(--nav-height) + 80px) 0 100px;
  background: var(--color-bg);
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.thanks-inner {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
  padding: 0 24px;
}

.thanks-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 36px;
  color: var(--color-accent);
}

.thanks-icon svg {
  width: 64px;
  height: 64px;
  stroke: var(--color-accent);
}

.thanks-title {
  font-family: var(--font-serif);
  font-size: clamp(24px, 3.5vw, 36px);
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--color-text);
  margin-bottom: 24px;
}

.thanks-lead {
  font-size: 16px;
  color: var(--color-text-mid);
  line-height: 2;
  margin-bottom: 16px;
}

.thanks-body {
  font-size: 14px;
  color: var(--color-text-mid);
  line-height: 2.2;
  margin-bottom: 36px;
}

.thanks-note {
  list-style: none;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  padding: 28px 32px;
  margin-bottom: 48px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.thanks-note li {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.8;
  padding-left: 18px;
  position: relative;
}

.thanks-note li::before {
  content: '–';
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

/* ====================================================
   RESPONSIVE — 480px（小型スマホ）
   ==================================================== */
@media (max-width: 480px) {
  .section-title     { font-size: 21px; }
  .section-title--lg { font-size: 23px; }

  .footer-bottom__links { flex-direction: column; gap: 10px; }

  .page-hero {
    padding: calc(var(--nav-height) + 32px) 0 32px;
  }

  .page-hero__desc {
    font-size: 14px;
  }

  .thanks-note {
    padding: 20px;
  }
}

@media (max-width: 768px) {
  .page-hero {
    padding: calc(var(--nav-height) + 40px) 0 40px;
  }
}