/* ====== BASE ====== */
* { 
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body { 
    margin: 0; 
    font-family: 'Zen Kaku Gothic New', 'Inter', system-ui, -apple-system, sans-serif;
    background: #0A0A0A;
    color: #fff;
}

html {
    scroll-behavior: smooth;
}

/* ====== HEADER ====== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    background: rgba(10, 10, 10, 0.88);
    backdrop-filter: blur(10px);
    z-index: 50;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-link {
    display: block;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.logo-link:hover {
    opacity: 0.8;
}

.logo-image {
    height: 48px;
    width: auto;
    display: block;
}

.logo span { 
    opacity: 0.25; 
}

.site-nav {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-link {
    color: rgba(255, 255, 255, 0.85);
    font-size: 15px;
    font-weight: 500;
    font-family: 'Zen Kaku Gothic New', sans-serif;
    text-decoration: none;
    letter-spacing: 0.06em;
    transition: opacity 0.3s ease;
}

.nav-link:hover {
    opacity: 0.6;
}

.menu {
    width: 44px;
    height: 44px;
    border: 0;
    background: transparent;
    opacity: 0.55;
    cursor: pointer;
}

/* ====== HERO WRAPPER (SCROLL AREA) ====== */
.hero {
    /* スクロール演出の長さ：520vh = 5.2倍 */
    height: 520vh;
    position: relative;
}

/* ====== STICKY STAGE ====== */
.hero__sticky {
    position: sticky;
    top: 0;
    height: 100vh;
    overflow: hidden;
}

/* 背景2枚を重ねる - シンプル */
.hero__bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;                /* JSで制御 */
    will-change: opacity;
    transition: opacity 1.2s ease-out;
}

/* 背景画像を指定 */
.hero__bg--1 { 
    background-image: url('../images/hero-stage1-predawn.webp'); 
    opacity: 1; 
}

.hero__bg--2 { 
    background-image: url('../images/hero-stage2-sunrise.webp'); 
}

/* 読めるように暗幕 - シンプル */
.hero__overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    z-index: 1;
}

/* ====== COPY LAYOUT ====== */
.hero__copy {
    position: absolute;
    left: 50%;
    bottom: 32%;  /* 中央よりやや下 */
    transform: translateX(-50%);
    width: min(980px, 92vw);
    text-align: center;
    color: rgba(255, 255, 255, 0.95);
    z-index: 5;
    padding: 0 8px;
    opacity: 0;
    transition: opacity 2s ease;
}

.hero__copy.visible {
    opacity: 1;
}

/* リード文 */
.hero__lead {
    font-size: clamp(16px, 2vw, 22px);
    font-family: 'Zen Kaku Gothic New', sans-serif;
    font-weight: 400;
    letter-spacing: 0.08em;
    margin-bottom: 20px;
    color: rgba(255, 255, 255, 0.88);
}

/* メインコピー - シンプルで読みやすく */
.hero__main {
    font-size: clamp(32px, 4.5vw, 56px);
    font-weight: 700;
    letter-spacing: 0.06em;
    line-height: 1.5;
    font-family: 'Zen Kaku Gothic New', sans-serif;
    color: rgba(255, 255, 255, 0.98);
    margin-bottom: 32px;
}

/* サブコピー - 小さく */
.hero__sub {
    font-size: clamp(13px, 1.5vw, 16px);
    font-family: 'Zen Kaku Gothic New', sans-serif;
    font-weight: 400;
    letter-spacing: 0.08em;
    line-height: 1.7;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 0.82);
}

/* 署名 - 控えめ */
.hero__sig {
    font-size: clamp(12px, 1.4vw, 15px);
    font-family: 'Zen Kaku Gothic New', sans-serif;
    font-weight: 500;
    letter-spacing: 0.08em;
    margin: 0;
    color: rgba(255, 255, 255, 0.75);
}

.hero__sig span {
    color: rgba(255, 195, 90, 0.85);
    font-weight: 600;
}

/* ====== RESPONSIVE ====== */
@media (max-width: 640px) {
    .site-header { 
        height: 64px; 
        padding: 0 16px; 
    }
    
    .logo-image {
        height: 40px;
    }
    
    .hero__copy { 
        bottom: 28%; 
    }
    
    .hero__main {
        line-height: 1.6;
    }
}

/* ====== COMMON ====== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.container-narrow {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-heading {
    font-size: clamp(24px, 3vw, 36px);
    font-weight: 700;
    font-family: 'Zen Kaku Gothic New', sans-serif;
    letter-spacing: 0.04em;
    line-height: 1.6;
    margin-bottom: 32px;
    color: #0F172A;
}

.section-text {
    font-size: clamp(15px, 1.8vw, 18px);
    font-family: 'Zen Kaku Gothic New', sans-serif;
    font-weight: 400;
    line-height: 1.9;
    letter-spacing: 0.06em;
    color: #334155;
}

.section-text p {
    margin-bottom: 24px;
}

.section-text p:last-child {
    margin-bottom: 0;
}

/* ====== SECTION 1: 共感・問題提起 ====== */
.section-empathy {
    background: #FFFFFF;
    padding: 120px 0;
    text-align: center;
}

/* ====== SECTION 2: 思想・スタンス提示 ====== */
.section-stance {
    background: #F8FAFC;
    padding: 120px 0;
}

.section-stance .container-narrow {
    text-align: left;
}

.stance-list {
    margin-top: 48px;
}

.stance-list p {
    font-size: clamp(16px, 2vw, 20px);
    font-family: 'Zen Kaku Gothic New', sans-serif;
    font-weight: 500;
    line-height: 2.2;
    letter-spacing: 0.06em;
    color: #334155;
    margin-bottom: 16px;
}

.stance-list p:last-child {
    margin-bottom: 0;
}

/* ====== SECTION 3: サービス要約 ====== */
.section-services {
    background: #FFFFFF;
    padding: 120px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 80px;
}

.service-block h3 {
    font-size: clamp(18px, 2.2vw, 24px);
    font-family: 'Zen Kaku Gothic New', sans-serif;
    font-weight: 700;
    letter-spacing: 0.06em;
    margin-bottom: 20px;
    color: #0F172A;
}

.service-block p {
    font-size: clamp(14px, 1.6vw, 16px);
    font-family: 'Zen Kaku Gothic New', sans-serif;
    font-weight: 400;
    line-height: 1.9;
    letter-spacing: 0.06em;
    color: #64748B;
}

@media (max-width: 768px) {
    .services-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
}

/* ====== SECTION 4: プロフィール ====== */
.section-profile {
    background: #FFFFFF;
    padding: 120px 0;
    text-align: center;
}

/* ====== SECTION 5: 経験＝事例 ====== */
.section-experience {
    background: #F8FAFC;
    padding: 120px 0;
}

.experience-list {
    list-style: none;
    margin: 48px 0;
}

.experience-list li {
    font-size: clamp(15px, 1.8vw, 18px);
    font-family: 'Zen Kaku Gothic New', sans-serif;
    font-weight: 400;
    line-height: 2;
    letter-spacing: 0.06em;
    color: #334155;
    margin-bottom: 12px;
    padding-left: 20px;
    position: relative;
}

.experience-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 14px;
    width: 6px;
    height: 6px;
    background: #94A3B8;
    border-radius: 50%;
}

/* ====== SECTION 6: 価格を出さない安心設計 ====== */
.section-pricing {
    background: #FFFFFF;
    padding: 120px 0;
    text-align: center;
}

.pricing-points {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 48px;
}

.pricing-point {
    padding: 32px 24px;
    background: #F8FAFC;
    border-radius: 6px;
}

.pricing-point p {
    font-size: clamp(14px, 1.6vw, 16px);
    font-family: 'Zen Kaku Gothic New', sans-serif;
    font-weight: 500;
    letter-spacing: 0.06em;
    color: #475569;
    margin: 0;
}

@media (max-width: 768px) {
    .pricing-points {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

/* ====== SECTION 7: 初回相談について ====== */
.section-consultation {
    background: #F8FAFC;
    padding: 120px 0;
}

.consultation-list {
    list-style: none;
    margin-top: 48px;
}

.consultation-list li {
    font-size: clamp(15px, 1.8vw, 18px);
    font-family: 'Zen Kaku Gothic New', sans-serif;
    font-weight: 400;
    line-height: 2;
    letter-spacing: 0.06em;
    color: #334155;
    margin-bottom: 12px;
    padding-left: 28px;
    position: relative;
}

.consultation-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    font-size: 16px;
    color: #94A3B8;
}

/* ====== SECTION 8: 最終CTA ====== */
.section-cta {
    background: #FFFFFF;
    padding: 120px 0;
    text-align: center;
}

.cta-text {
    font-size: clamp(18px, 2.2vw, 24px);
    font-family: 'Zen Kaku Gothic New', sans-serif;
    font-weight: 500;
    letter-spacing: 0.06em;
    color: #0F172A;
    margin-bottom: 40px;
}

.cta-button {
    display: inline-block;
    padding: 18px 48px;
    background: #0F172A;
    color: #FFFFFF;
    font-size: clamp(15px, 1.8vw, 17px);
    font-family: 'Zen Kaku Gothic New', sans-serif;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-decoration: none;
    border-radius: 6px;
    transition: opacity 0.3s ease;
}

.cta-button:hover {
    opacity: 0.88;
}

/* ====== SECTION 9: 余韻 ====== */
.section-closing {
    background: #F8FAFC;
    padding: 80px 0;
    text-align: center;
}

.closing-text {
    font-size: clamp(14px, 1.6vw, 16px);
    font-family: 'Zen Kaku Gothic New', sans-serif;
    font-weight: 400;
    line-height: 2;
    letter-spacing: 0.08em;
    color: #64748B;
    margin-bottom: 8px;
}

.closing-text:last-child {
    margin-bottom: 0;
}

/* ====== FOOTER ====== */
.footer {
    background: #0F172A;
    padding: 120px 0;
}

.footer-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
}

.footer-tagline {
    font-size: clamp(13px, 1.5vw, 15px);
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 400;
    letter-spacing: 0.08em;
    color: #94A3B8;
    margin-bottom: 40px;
}

.footer-brand {
    margin-bottom: 40px;
}

.footer-name {
    display: block;
    font-size: clamp(20px, 2.5vw, 28px);
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: #E5E7EB;
    margin-bottom: 8px;
}

.footer-service {
    display: block;
    font-size: clamp(14px, 1.6vw, 16px);
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 400;
    letter-spacing: 0.08em;
    color: #E5E7EB;
}

.footer-nav {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.footer-link {
    font-size: clamp(14px, 1.6vw, 16px);
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 400;
    letter-spacing: 0.06em;
    color: #E5E7EB;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.footer-link:hover {
    opacity: 0.7;
}

.footer-copy {
    font-size: clamp(12px, 1.4vw, 14px);
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 400;
    letter-spacing: 0.06em;
    color: #94A3B8;
    margin: 0;
}

@media (max-width: 640px) {
    .footer {
        padding: 80px 0;
    }
    
    .footer-nav {
        flex-direction: column;
        gap: 16px;
    }
}