/* ZIPANG GUIDE - Main Style v2 */
/* Colors: Orange #f07b3f / Navy #1e2d5a / BG #f5f5f5 */

:root {
    --color-bg:          #f5f5f5;
    --color-surface:     #ffffff;
    --color-surface2:    #f0f4ff;
    --color-border:      #e0e5f0;
    --color-orange:      #f07b3f;
    --color-orange-dark: #d96830;
    --color-navy:        #1e2d5a;
    --color-navy-light:  #2a3f7e;
    --color-text:        #333333;
    --color-text-muted:  #666666;
    --color-text-light:  #999999;
    --color-white:       #ffffff;
    --font-main: "Segoe UI", "Hiragino Sans", "Yu Gothic UI", "Noto Sans JP", sans-serif;
    --header-h: 64px;
    --container-w: 960px;
    --radius: 10px;
    --radius-sm: 6px;
    --shadow: 0 2px 12px rgba(30,45,90,0.08);
    --shadow-md: 0 6px 28px rgba(30,45,90,0.13);
    --transition: 0.2s ease;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-main); background: var(--color-bg); color: var(--color-text); line-height: 1.7; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
a { color: var(--color-orange); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-orange-dark); }
ul, ol { list-style: none; }

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

/* Common section */
.section-block { padding: 48px 0; }
.section-title {
    font-size: 1.5rem; font-weight: 700; color: var(--color-navy);
    margin-bottom: 10px; padding-bottom: 10px;
    border-bottom: 2px solid var(--color-orange); display: inline-block;
}
.section-subtitle { color: var(--color-text-muted); margin-bottom: 24px; font-size: 0.9rem; display: block; margin-top: 8px; }
.section-body { font-size: 0.95rem; line-height: 1.85; }
.guide-section { border-bottom: 1px solid var(--color-border); }
.guide-section:nth-child(even) { background: var(--color-surface); }

/* Buttons */
.btn { display: inline-block; padding: 12px 28px; border-radius: 50px; font-weight: 700; font-size: 0.9rem; cursor: pointer; transition: all var(--transition); text-align: center; }
.btn-primary { background: var(--color-orange); color: #fff; box-shadow: 0 4px 14px rgba(240,123,63,0.3); }
.btn-primary:hover { background: var(--color-orange-dark); color: #fff; transform: translateY(-1px); }
.btn-secondary { background: transparent; border: 2px solid var(--color-navy); color: var(--color-navy); }
.btn-secondary:hover { background: var(--color-navy); color: #fff; }
.btn-lg { padding: 15px 44px; font-size: 1rem; }

/* Section CTA */
.section-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 20px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 100; height: var(--header-h); background: rgba(255,255,255,0.96); backdrop-filter: blur(8px); border-bottom: 1px solid var(--color-border); box-shadow: 0 1px 8px rgba(30,45,90,0.06); }
.header-inner { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; height: 100%; display: flex; align-items: center; justify-content: space-between; }
.header-logo { display: flex; align-items: center; }
.header-logo img { height: 36px; width: auto; border-radius: 0; }
.header-logo span { font-size: 1rem; font-weight: 700; color: var(--color-navy); letter-spacing: 0.08em; }
.global-nav ul { display: flex; gap: 28px; }
.global-nav a { color: var(--color-text-muted); font-size: 0.875rem; font-weight: 600; transition: color var(--transition); position: relative; padding-bottom: 2px; }
.global-nav a::after { content: ''; position: absolute; bottom: -2px; left: 0; right: 0; height: 2px; background: var(--color-orange); transform: scaleX(0); transition: transform var(--transition); }
.global-nav a:hover, .global-nav a.active { color: var(--color-navy); }
.global-nav a:hover::after, .global-nav a.active::after { transform: scaleX(1); }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--color-navy); transition: all var(--transition); }

/* Hero */
.hero { background: linear-gradient(135deg, #ffffff 0%, #eef2ff 60%, #fff4ee 100%); padding: 56px 24px 48px; text-align: center; border-bottom: 1px solid var(--color-border); }
.hero-inner { max-width: var(--container-w); margin: 0 auto; }
.hero-label { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.25em; color: var(--color-orange); text-transform: uppercase; margin-bottom: 12px; }
.hero-title { font-size: 2.2rem; font-weight: 700; color: var(--color-navy); margin-bottom: 14px; letter-spacing: 0.04em; }
.hero-subtitle { font-size: 0.95rem; color: var(--color-text-muted); line-height: 1.9; max-width: 560px; margin: 0 auto; }

/* Home cards */
.home-cards-section { padding: 36px 0; background: var(--color-surface); border-bottom: 1px solid var(--color-border); }

/* Home section common */
.home-section { padding: 48px 0; }
.home-section--gray { background: var(--color-bg); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.home-section--white { background: var(--color-surface); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.home-section__head { margin-bottom: 28px; }
.home-section__title { font-size: 1.4rem; font-weight: 700; color: var(--color-navy); padding-bottom: 10px; border-bottom: 3px solid var(--color-orange); display: inline-block; margin-bottom: 8px; }
.home-section__subtitle { font-size: 0.875rem; color: var(--color-text-muted); }
.home-section__cta { text-align: center; margin-top: 28px; }

/* Flow grid - 横並び4カラム */
.flow-grid { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; align-items: start; gap: 0; }
.flow-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 20px 16px; text-align: center; box-shadow: var(--shadow); position: relative; }
.flow-card__num { display: inline-block; background: var(--color-orange); color: #fff; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.08em; padding: 4px 12px; border-radius: 50px; margin-bottom: 12px; }
.flow-card__title { font-size: 0.9rem; font-weight: 700; color: var(--color-navy); margin-bottom: 6px; line-height: 1.4; }
.flow-card__desc { font-size: 0.8rem; color: var(--color-text-muted); line-height: 1.6; }
.flow-arrow { display: flex; align-items: center; justify-content: center; color: var(--color-orange); font-size: 1rem; padding: 0 8px; padding-top: 28px; }

/* Caution grid - 2カラム */
.caution-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.caution-card { background: #fffbf5; border: 1px solid #f5e0c8; border-left: 4px solid var(--color-orange); border-radius: var(--radius-sm); padding: 16px 18px; }
.caution-card__head { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.caution-card__icon { color: var(--color-orange); font-size: 1rem; flex-shrink: 0; }
.caution-card__title { font-size: 0.9rem; font-weight: 700; color: var(--color-navy); line-height: 1.4; }
.caution-card__desc { font-size: 0.83rem; color: var(--color-text-muted); line-height: 1.7; padding-left: 24px; }

/* FAQ */
.faq-list { display: flex; flex-direction: column; gap: 6px; }
.faq-item { border: 1px solid var(--color-border); border-radius: var(--radius-sm); overflow: hidden; background: var(--color-surface); box-shadow: var(--shadow); }
.faq-question { width: 100%; background: var(--color-surface); border: none; padding: 16px 18px; display: flex; justify-content: space-between; align-items: center; gap: 16px; cursor: pointer; color: var(--color-navy); font-size: 0.9rem; font-weight: 600; text-align: left; font-family: var(--font-main); transition: background var(--transition); }
.faq-question:hover { background: var(--color-surface2); }
.faq-question[aria-expanded="true"] { background: var(--color-navy); color: #fff; }
.faq-question i { flex-shrink: 0; color: var(--color-orange); transition: transform var(--transition); }
.faq-question[aria-expanded="true"] i { transform: rotate(180deg); }
.faq-answer { display: none; padding: 14px 18px; font-size: 0.875rem; color: var(--color-text-muted); line-height: 1.85; border-top: 1px solid var(--color-border); }
.faq-answer.is-open { display: block; }

/* LINE box */
.line-box { display: flex; align-items: center; gap: 28px; background: #06c755; border-radius: var(--radius); padding: 28px 36px; }
.line-box__icon { font-size: 3rem; color: #fff; flex-shrink: 0; opacity: 0.9; }
.line-box__title { font-size: 1.2rem; font-weight: 700; color: #fff; margin-bottom: 6px; }
.line-box__desc { font-size: 0.875rem; color: rgba(255,255,255,0.88); margin-bottom: 16px; line-height: 1.7; }
.btn-line { display: inline-flex; align-items: center; gap: 8px; background: #fff; color: #06c755; font-weight: 700; font-size: 0.9rem; padding: 11px 24px; border-radius: 50px; transition: all var(--transition); }
.btn-line:hover { background: rgba(255,255,255,0.92); color: #06c755; }
.btn-line i { font-size: 1.1rem; }

/* CTA section */
.home-cta { background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 100%); padding: 56px 24px; text-align: center; }
.home-cta__title { font-size: 1.4rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
.home-cta__sub { font-size: 0.875rem; color: rgba(255,255,255,0.7); margin-bottom: 28px; }
.home-cta__buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn-cta { display: inline-flex; align-items: center; gap: 8px; padding: 14px 36px; border-radius: 50px; font-weight: 700; font-size: 0.95rem; transition: all var(--transition); }
.btn-cta--primary { background: var(--color-orange); color: #fff; box-shadow: 0 4px 16px rgba(240,123,63,0.4); }
.btn-cta--primary:hover { background: var(--color-orange-dark); color: #fff; transform: translateY(-1px); }
.btn-cta--outline { background: transparent; border: 2px solid rgba(255,255,255,0.6); color: #fff; }
.btn-cta--outline:hover { background: rgba(255,255,255,0.12); color: #fff; }

/* Footer */
.site-footer { background: var(--color-navy); padding: 32px 24px; text-align: center; }
.footer-inner { max-width: var(--container-w); margin: 0 auto; display: flex; flex-direction: column; align-items: center; gap: 14px; }
.footer-copy { font-size: 0.72rem; color: rgba(255,255,255,0.35); }

/* Page hero (inner pages) */
.page-hero { background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-light) 100%); padding: 44px 24px; }
.page-hero .container { display: flex; flex-direction: column; gap: 8px; }
.page-hero-title { font-size: 1.6rem; font-weight: 700; color: #fff; }
.page-hero-title i { margin-right: 10px; color: var(--color-orange); }
.page-hero-subtitle { color: rgba(255,255,255,0.72); font-size: 0.9rem; }

/* TOC */
.toc-section { padding: 24px 0; background: var(--color-surface2); border-bottom: 1px solid var(--color-border); }
.toc-box { background: var(--color-surface); border: 1px solid var(--color-border); border-left: 4px solid var(--color-orange); border-radius: var(--radius-sm); padding: 20px 24px; box-shadow: var(--shadow); }
.toc-label { font-size: 0.85rem; font-weight: 700; color: var(--color-navy); margin-bottom: 10px; }
.toc-label i { color: var(--color-orange); margin-right: 6px; }
.toc-list { list-style: decimal; padding-left: 1.4em; display: flex; flex-direction: column; gap: 5px; }
.toc-list a { font-size: 0.875rem; color: var(--color-text-muted); }
.toc-list a:hover { color: var(--color-orange); }

/* Steps */
.steps-list { display: flex; flex-direction: column; gap: 16px; margin-top: 24px; }
.step-item { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.step-header { display: flex; align-items: center; gap: 14px; padding: 14px 20px; background: var(--color-navy); }
.step-number { background: var(--color-orange); color: #fff; font-weight: 700; font-size: 0.72rem; padding: 3px 10px; border-radius: 50px; white-space: nowrap; letter-spacing: 0.08em; }
.step-title { font-size: 0.95rem; font-weight: 700; color: #fff; }
.step-image { padding: 16px 20px 0; }
.step-image img { width: 100%; border: 1px solid var(--color-border); border-radius: var(--radius-sm); }
.step-description { padding: 12px 20px 16px; font-size: 0.875rem; color: var(--color-text-muted); line-height: 1.85; }

/* Points */
.points-list { display: flex; flex-direction: column; gap: 12px; margin-top: 24px; }
.point-item { background: var(--color-surface); border: 1px solid var(--color-border); border-left: 4px solid var(--color-orange); border-radius: var(--radius-sm); padding: 16px 20px; box-shadow: var(--shadow); }
.point-header { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.point-icon { color: var(--color-orange); font-size: 0.95rem; flex-shrink: 0; }
.point-title { font-size: 0.95rem; font-weight: 700; color: var(--color-navy); line-height: 1.4; }
.point-description { font-size: 0.875rem; color: var(--color-text-muted); line-height: 1.8; padding-left: 26px; }

/* Next guide */
.next-guide { text-align: center; background: var(--color-surface2); border-top: 1px solid var(--color-border); padding: 32px 0; }
.next-guide-label { font-size: 0.75rem; color: var(--color-text-light); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 10px; }

/* Responsive */
@media (max-width: 768px) {
    :root { --header-h: 56px; }
    .global-nav { display: none; position: absolute; top: var(--header-h); left: 0; right: 0; background: rgba(255,255,255,0.98); border-bottom: 1px solid var(--color-border); padding: 16px 24px 24px; box-shadow: var(--shadow-md); }
    .global-nav.is-open { display: block; }
    .global-nav ul { flex-direction: column; gap: 0; }
    .global-nav li a { display: block; padding: 13px 0; border-bottom: 1px solid var(--color-border); font-size: 0.95rem; }
    .global-nav a::after { display: none; }
    .hamburger { display: flex; }
    .hero { padding: 40px 20px 32px; }
    .hero-title { font-size: 1.7rem; }
    .flow-grid { grid-template-columns: 1fr; }
    .flow-arrow { padding: 4px 0; transform: rotate(90deg); }
    .caution-grid { grid-template-columns: 1fr; }
    .page-hero { padding: 32px 20px; }
    .page-hero-title { font-size: 1.3rem; }
    .section-block { padding: 36px 0; }
    .home-section { padding: 36px 0; }
    .line-box { flex-direction: column; text-align: center; padding: 24px 20px; gap: 14px; }
    .home-cta { padding: 40px 20px; }
    .home-cta__buttons { flex-direction: column; align-items: center; }
    .footer-nav { gap: 14px; }
}

/* Home card - 横並びレイアウト（左：画像、右：テキスト） */
.home-card { display: flex; flex-direction: row; align-items: center; gap: 0; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: transform var(--transition), box-shadow var(--transition); color: var(--color-text); background: var(--color-surface); }
.home-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); color: var(--color-text); }
.home-card--orange { border-left: 4px solid var(--color-orange); border: 1px solid var(--color-border); border-left: 4px solid var(--color-orange); }
.home-card--navy { border-left: 4px solid var(--color-navy); border: 1px solid var(--color-border); border-left: 4px solid var(--color-navy); }

/* カード内イラストエリア */
.home-card__img { flex-shrink: 0; width: 160px; height: 100%; min-height: 120px; display: flex; align-items: center; justify-content: center; padding: 16px; background: var(--color-surface); }
.home-card--navy .home-card__img { background: var(--color-surface); }
.home-card__img img { width: 130px; height: auto; object-fit: contain; border-radius: 0; }

/* カード内テキストエリア */
.home-card__body { padding: 20px 24px; flex: 1; display: flex; flex-direction: column; background: var(--color-surface); }
.home-card__title { font-size: 1.05rem; font-weight: 700; color: var(--color-navy); margin-bottom: 8px; }
.home-card__desc { font-size: 0.85rem; color: var(--color-text-muted); line-height: 1.7; margin-bottom: 12px; }
.home-card__link { font-size: 0.85rem; font-weight: 700; color: var(--color-orange); margin-top: auto; }
.home-card--navy .home-card__link { color: var(--color-navy); }

/* PC：カードグリッドは横並び2列 */
.home-card-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

/* スマホ：カードグリッドは縦並び1列 */
@media (max-width: 768px) {
    .home-card-grid { grid-template-columns: 1fr; }
    .home-card__img { width: 120px; min-height: 100px; }
    .home-card__img img { width: 100px; }
}

/* Hero - reduce bottom margin */
.hero { padding: 48px 24px 40px; }

/* Section spacing */
.home-cards-section { padding: 28px 0; }
.home-section { padding: 40px 0; }

/* Flow card height equalize */
.flow-grid { align-items: stretch; }
.flow-card { height: 100%; }
.flow-arrow { padding-top: 0; align-self: center; }

/* Admin nav bg fix */
.admin-nav a.active { background: var(--color-surface2); }

/* ツールグリッド（3つのツールの使い分けセクション） */
.tools-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 32px; }

/* ツールカード */
.tool-card { display: flex; flex-direction: column; align-items: center; text-align: center; }
.tool-card__title { display: inline-block; background: var(--color-orange); color: #fff; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.06em; padding: 4px 14px; border-radius: 50px; margin: 14px 0 10px; }
.tool-card__desc { font-size: 0.82rem; color: var(--color-text-muted); line-height: 1.7; }

/* スマホ枠 */
.smartphone-frame { width: 160px; background: var(--color-navy); border-radius: 24px; padding: 10px 8px 14px; display: flex; flex-direction: column; align-items: center; gap: 8px; }
.smartphone-frame__bar { width: 48px; height: 5px; background: #3a4f8a; border-radius: 3px; }
.smartphone-frame__screen { width: 100%; background: #fff; border-radius: 8px; overflow: hidden; aspect-ratio: 1/2; }
.smartphone-frame__screen img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* スマホ枠レスポンシブ */
@media (max-width: 768px) {
    .tools-grid { grid-template-columns: 1fr; gap: 24px; }
    .smartphone-frame { width: 140px; }
}