/* ============================================
   PHOENIX ACCOUNTING GROUP - Common Styles
   Header, Navigation, Footer, Shared Components
   ============================================ */

/* Google Fonts are now loaded non-blocking from each page's <head>. */

/* ─── 赤系カラー ───
   ここの3色を書き換えるだけで、Mission & Vision / 創業以来大事にしてきたこと /
   フッター / 各下層ページの page-header の背景色をまとめて変更できます。 */
:root {
  --color-crimson: #A81C28;        /* セクション用の赤 */
  --color-crimson-dark: #8E141F;   /* フッター用の一段濃い赤 */
  --color-crimson-deep: #7A101A;   /* グラデーション／フッター下部の締め色 */
  --gradient-crimson: linear-gradient(135deg, var(--color-crimson) 0%, var(--color-crimson-deep) 100%);
}

/* ─── Layout Container ─── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.section-padding {
  padding: var(--space-32) 0;
}

/* ─── Section Headers ─── */
.section-eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-4);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, var(--text-4xl));
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
  color: var(--color-navy);
  margin-bottom: var(--space-6);
}

.section-title--light {
  color: var(--color-white);
}

.section-subtitle {
  font-size: var(--text-md);
  line-height: var(--leading-relaxed);
  color: var(--color-gray-500);
  max-width: 640px;
}

.section-subtitle--light {
  color: rgba(255,255,255,0.75);
}

.section-divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

.section-divider::after {
  content: '';
  flex: 1;
  max-width: 60px;
  height: 2px;
  background: var(--gradient-gold);
  border-radius: var(--radius-full);
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-8);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.1);
  transform: translateX(-100%);
  transition: transform var(--transition-base);
}

.btn:hover::before {
  transform: translateX(0);
}

.btn-primary {
  background: var(--gradient-gold);
  color: var(--color-navy-dark);
  box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(201,168,76,0.40);
}

.btn-outline {
  border: 1.5px solid var(--color-gold);
  color: var(--color-gold);
  background: transparent;
}

.btn-outline:hover {
  background: var(--color-gold);
  color: var(--color-navy-dark);
  transform: translateY(-2px);
}

.btn-ghost {
  color: var(--color-white);
  border: 1.5px solid rgba(255,255,255,0.35);
}

.btn-ghost:hover {
  border-color: var(--color-white);
  background: rgba(255,255,255,0.1);
}

.btn svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.btn:hover svg {
  transform: translateX(3px);
}

/* ─── Logo Text (HTML-based, avoids SVG clipping) ─── */
.nav-logo-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  line-height: 1;
}

.nav-logo-name {
  font-family: 'Times New Roman', 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 2px;
  color: #ffffff;
  white-space: nowrap;
  text-transform: uppercase;
}

.nav-logo-sub {
  font-family: 'Montserrat', sans-serif;
  font-weight: 400;
  font-size: 8.5px;
  letter-spacing: 1.5px;
  color: rgba(255, 255, 255, 0.7);
  white-space: nowrap;
  text-transform: uppercase;
}

.footer-logo-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  line-height: 1;
  margin-bottom: var(--space-6);
}

.footer-logo-name {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 2px;
  color: #ffffff;
  white-space: nowrap;
  text-transform: uppercase;
}

.footer-logo-sub {
  font-family: 'Montserrat', sans-serif;
  font-weight: 400;
  font-size: 9px;
  letter-spacing: 1.5px;
  color: rgba(255, 255, 255, 0.6);
  white-space: nowrap;
  text-transform: uppercase;
}

/* ─── Navigation ─── */
#site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: var(--z-sticky);
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
}

#site-nav .nav-inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

/* Transparent on hero */
#site-nav.nav-transparent {
  background: transparent;
}

/* Scrolled state */
#site-nav.nav-scrolled {
  height: var(--nav-height-scrolled);
  background: rgba(6, 15, 32, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(201,168,76,0.15);
  box-shadow: 0 4px 32px rgba(0,0,0,0.30);
}

/* On non-hero pages */
#site-nav.nav-solid {
  background: var(--color-navy-dark);
  border-bottom: 1px solid rgba(201,168,76,0.15);
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo img {
  height: 44px;
  width: auto;
  transition: opacity var(--transition-fast);
}

.nav-logo:hover img {
  opacity: 0.85;
}

/* Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  color: rgba(255,255,255,0.85);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-gold);
  background: rgba(201,168,76,0.08);
}

.nav-link--cta {
  background: var(--gradient-gold);
  color: var(--color-navy-dark) !important;
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-sm);
}

.nav-link--cta:hover {
  background: var(--color-gold-light) !important;
  transform: translateY(-1px);
  box-shadow: var(--shadow-gold);
}

/* Dropdown */
.nav-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 10%;
  transform: translateX(-50%);
  min-width: 260px;   /* 200px → 260px：一番長いリンクに合わせて拡張 */
  width: max-content;
  max-width: 90vw;
  background: var(--color-navy-dark);
  border: 1px solid rgba(201,168,76,0.2);
  border-radius: var(--radius-md);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(-8px);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-xl);
  max-height: 75vh;      /* 画面の高さを超えないようにする */
  overflow-y: auto;      /* 超えた分はスクロールできるようにする */
}

.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown a {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.8);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.nav-dropdown a:hover {
  color: var(--color-gold);
  background: rgba(201,168,76,0.1);
  padding-left: var(--space-6);
}
.nav-toggle {
  display: none;
}

/* Page loader logo had no size rule anywhere, so it rendered at the
   image's native pixel size (very large) instead of as a small mark. */
#page-loader .logo-icon img {
  height: 60px;
  width: auto;
}

/* ─── Page Header (inner pages) ─── */
.page-header {
  padding: calc(var(--nav-height) + var(--space-10)) 0 var(--space-10);
  background: var(--color-crimson);
  background-image: var(--gradient-crimson);
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 30% at 80% 25%, rgba(255,255,255,0.10) 0%, transparent 60%),
    radial-gradient(ellipse 30% 80% at 5% 80%, rgba(0,0,0,0.12) 0%, transparent 60%);
}

.page-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
}

.page-header .container {
  position: relative;
  z-index: 1;
}

.page-header-eyebrow {
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: #F0D48A;   /* 赤背景でも読みやすいよう、明るめのゴールドに */
  margin-bottom: var(--space-4);
}

.page-header h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, var(--text-5xl));
  font-weight: var(--weight-black);
  color: var(--color-white);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-6);
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.5);
}

.breadcrumb a {
  color: rgba(255,255,255,0.5);
  transition: color var(--transition-fast);
}

.breadcrumb a:hover { color: var(--color-gold); }

.breadcrumb-sep {
  color: var(--color-gold);
  opacity: 0.5;
}

/* ─── Geometric Decorations ─── */
.geo-lines {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.geo-lines svg {
  position: absolute;
  width: 100%;
  height: 100%;
}

/* ─── Card ─── */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

/* ─── Tag / Badge ─── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  border-radius: var(--radius-full);
  background: rgba(201,168,76,0.12);
  color: var(--color-gold-dark);
  border: 1px solid rgba(201,168,76,0.25);
}

/* ─── News Item ─── */
.news-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-5);
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--color-gray-200);
  transition: all var(--transition-fast);
}

.news-item:last-child { border-bottom: none; }

.news-item:hover .news-title {
  color: var(--color-gold-dark);
}

.news-date {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-gold);
  letter-spacing: var(--tracking-wide);
  white-space: nowrap;
  flex-shrink: 0;
  padding-top: 2px;
}

.news-title {
  font-size: var(--text-base);
  color: var(--color-navy);
  transition: color var(--transition-fast);
  line-height: var(--leading-snug);
}

/* ─── Footer ─── */
#site-footer {
  background: var(--color-crimson-dark);
  color: rgba(255,255,255,0.7);
  border-top: 1px solid rgba(201,168,76,0.25);
}

/* フッター下部（コピーライト帯）を少しだけ濃くして段差をつける */
.footer-bottom {
  background: var(--color-crimson-deep);
}

.footer-main {
  padding: var(--space-24) 0 var(--space-16);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-16);
}

.footer-brand {}

.footer-logo {
  height: 48px;
  width: auto;
  margin-bottom: var(--space-6);
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.footer-tagline {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.9);
  letter-spacing: var(--tracking-wide);
  margin-bottom: var(--space-3);
}

.footer-address {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: rgba(255,255,255,0.5);
  margin-bottom: var(--space-4);
}

.footer-tel {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  color: var(--color-gold);
  letter-spacing: var(--tracking-wide);
}

.footer-col-title {
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid rgba(201,168,76,0.2);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.55);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.footer-links a::before {
  content: '→';
  color: var(--color-gold);
  opacity: 0;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  transform: translateX(-8px);
}

.footer-links a:hover {
  color: var(--color-gold);
  padding-left: var(--space-3);
}

.footer-links a:hover::before {
  opacity: 1;
  transform: translateX(0);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: var(--space-6) 0;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.footer-copyright {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.3);
  letter-spacing: var(--tracking-wide);
}

/* ─── Gold line decoration ─── */
.gold-line {
  display: block;
  width: 40px;
  height: 2px;
  background: var(--gradient-gold);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-5);
}

/* ─── Scroll Top ─── */
.scroll-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  width: 48px;
  height: 48px;
  background: var(--gradient-gold);
  color: var(--color-navy-dark);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all var(--transition-base);
  z-index: var(--z-dropdown);
  box-shadow: var(--shadow-gold);
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(201,168,76,0.45);
}

.scroll-top svg {
  width: 20px;
  height: 20px;
}