/* ============================================
   Delight Sand - Corporate Website Styles
   差別化ポイント：
   - 砂をモチーフにした有機的なデザイン
   - グラデーションと流れるようなアニメーション
   - 温かみのあるカラーパレット
   ============================================ */

/* ============================================
   CSS Variables & Base Styles
   ============================================ */
:root {
    /* カラーパレット - 薄いピンク＆薄い水色ベース */
    --color-primary: #F8B4C4;          /* 薄いピンク */
    --color-primary-dark: #E899AC;
    --color-primary-light: #FDDDE6;
    --color-secondary: #B5D8E8;        /* 薄い水色 */
    --color-secondary-dark: #8FC5DB;
    --color-accent: #FDDDE6;           /* より薄いピンク */
    --color-accent-light: #FFF0F5;
    --color-mint: #C8E6E0;             /* ミント */
    --color-lavender: #E8D5F0;         /* ラベンダー */
    --color-yellow: #FFF5D6;           /* クリームイエロー */
    --color-peach: #FFE8DC;            /* ピーチ */

    /* ニュートラルカラー */
    --color-dark: #4A4A4A;
    --color-gray: #888888;
    --color-gray-light: #D0D0D0;
    --color-light: #FAFCFD;
    --color-white: #FFFFFF;

    /* グラデーション - 薄いピンクと水色 */
    --gradient-sand: linear-gradient(135deg, #FDDDE6 0%, #F8B4C4 100%);
    --gradient-ocean: linear-gradient(135deg, #B5D8E8 0%, #C8E6E0 100%);
    --gradient-sunset: linear-gradient(135deg, #F8B4C4 0%, #E899AC 100%);
    --gradient-hero: linear-gradient(180deg, #FFFFFF 0%, #FFF5F8 50%, #FDDDE6 100%);
    --gradient-rainbow: linear-gradient(135deg, #FDDDE6 0%, #F8B4C4 25%, #E8D5F0 50%, #B5D8E8 75%, #C8E6E0 100%);
    --gradient-pop: linear-gradient(135deg, #FFF0F5 0%, #F8B4C4 100%);

    /* タイポグラフィ */
    --font-primary: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'メイリオ', sans-serif;
    --font-display: 'Playfair Display', serif;

    /* スペーシング */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --spacing-xxl: 8rem;

    /* ボーダー */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;

    /* シャドウ */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.08);
    --shadow-glow: 0 0 40px rgba(248, 180, 196, 0.4);
    --shadow-pink: 0 4px 20px rgba(248, 180, 196, 0.3);
    --shadow-blue: 0 4px 20px rgba(181, 216, 232, 0.3);

    /* トランジション */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* ヘッダー高さ */
    --header-height: 80px;
}

/* リセット & ベース */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    overflow-x: hidden;
}

body {
    font-family: var(--font-primary);
    font-weight: 400;
    line-height: 1.8;
    color: var(--color-dark);
    background-color: var(--color-light);
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
}

/* ============================================
   Loader
   ============================================ */
#loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-hero);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

#loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.sand-loader {
    display: flex;
    gap: 8px;
    margin-bottom: var(--spacing-md);
}

.sand-particle {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    animation: sandFall 1.4s ease-in-out infinite;
}

.sand-particle:nth-child(1) {
    background: #F8B4C4;
    animation-delay: 0s;
}
.sand-particle:nth-child(2) {
    background: #FDDDE6;
    animation-delay: 0.2s;
}
.sand-particle:nth-child(3) {
    background: #E899AC;
    animation-delay: 0.4s;
}
.sand-particle:nth-child(4) {
    background: #FFF0F5;
    animation-delay: 0.6s;
}
.sand-particle:nth-child(5) {
    background: #F8B4C4;
    animation-delay: 0.8s;
}

@keyframes sandFall {
    0%, 100% {
        transform: translateY(0);
        opacity: 1;
    }
    50% {
        transform: translateY(-20px);
        opacity: 0.5;
    }
}

.loader-text {
    font-size: 0.9rem;
    color: var(--color-gray);
    letter-spacing: 0.2em;
}

/* ============================================
   Container & Layout
   ============================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
}

section {
    padding: var(--spacing-xxl) 0;
}

/* ============================================
   Header & Navigation
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(253, 245, 248, 0.98) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    transition: all var(--transition-normal);
    border-bottom: 1px solid rgba(248, 180, 196, 0.1);
}

.header.scrolled {
    box-shadow: 0 4px 30px rgba(248, 180, 196, 0.15);
    height: 70px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.99) 0%, rgba(253, 245, 248, 0.99) 100%);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.logo {
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo-image {
    height: 40px;
    width: auto;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    background: var(--gradient-sunset);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-sm);
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--color-dark);
    font-size: 0.85rem;
    font-weight: 500;
    position: relative;
    padding: 0.6rem 1rem;
    transition: all var(--transition-normal);
    border-radius: var(--radius-md);
    letter-spacing: 0.02em;
}

.nav-link::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(248, 180, 196, 0.1) 0%, rgba(232, 168, 124, 0.1) 100%);
    border-radius: var(--radius-md);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient-sunset);
    transition: width var(--transition-normal);
    border-radius: 2px;
}

.nav-link:hover {
    color: var(--color-primary-dark);
}

.nav-link:hover::before {
    opacity: 1;
}

.nav-link:hover::after {
    width: calc(100% - 20px);
}

.nav-cta {
    background: var(--gradient-sunset);
    color: var(--color-white) !important;
    padding: 0.7rem 1.8rem !important;
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
    font-size: 0.85rem;
    box-shadow: 0 4px 15px rgba(248, 180, 196, 0.3);
    border: none;
}

.nav-cta::before,
.nav-cta::after {
    display: none;
}

.nav-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(248, 180, 196, 0.4);
}

.nav-link.active {
    color: var(--color-primary-dark);
}

.nav-link.active::before {
    opacity: 1;
}

.nav-link.active::after {
    width: calc(100% - 20px);
}

/* ハンバーガーメニュー */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-dark);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ============================================
   Hero Section - Professional Design
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, #FFFFFF 0%, #FFF8FA 100%);
    overflow: hidden;
    padding-top: var(--header-height);
}

/* 背景の装飾 - 静的で上品に */
.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

/* 静的な装飾円 */
.sand-wave {
    position: absolute;
    border-radius: 50%;
}

.sand-wave-1 {
    width: 380px;
    height: 380px;
    background: radial-gradient(circle, rgba(248, 180, 196, 0.8) 0%, rgba(253, 221, 230, 0.5) 50%, transparent 85%);
    top: -40px;
    right: 5%;
}

.sand-wave-2 {
    width: 260px;
    height: 260px;
    background: radial-gradient(circle, rgba(181, 216, 232, 0.75) 0%, rgba(200, 230, 224, 0.4) 50%, transparent 85%);
    bottom: 30%;
    left: -20px;
}

.sand-wave-3 {
    width: 160px;
    height: 160px;
    background: radial-gradient(circle, rgba(232, 213, 240, 0.7) 0%, rgba(248, 180, 196, 0.35) 50%, transparent 85%);
    top: 50%;
    right: 30%;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 0 24px;
    max-width: 800px;
}

.hero-subtitle {
    font-family: var(--font-display);
    font-size: 13px;
    letter-spacing: 0.2em;
    color: var(--color-primary-dark);
    margin-bottom: 24px;
    text-transform: uppercase;
}

.hero-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 24px;
    color: var(--color-dark);
}

.title-line {
    display: block;
}

.gradient-text {
    background: var(--gradient-sunset);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 15px;
    color: #666;
    margin-bottom: 40px;
    line-height: 2;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

/* ボタンスタイル */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: var(--radius-full);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn-primary {
    background: var(--gradient-sunset);
    color: var(--color-white);
    box-shadow: 0 4px 20px rgba(248, 180, 196, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(248, 180, 196, 0.5);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    background: var(--color-primary-light);
    transform: translateY(-3px);
}

/* Hero統計 */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    font-family: var(--font-display);
}

.stat-suffix {
    font-size: 1.5rem;
    color: var(--color-primary);
}

.stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--color-gray);
    margin-top: 0.25rem;
}

/* スクロールインジケーター */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    animation: bounce 2s infinite;
}

.scroll-text {
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: var(--color-gray);
    text-transform: uppercase;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--color-gray);
    border-bottom: 2px solid var(--color-gray);
    transform: rotate(45deg);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* アニメーション用クラス */
.animate-fade-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease forwards;
}

.animate-fade-up:nth-child(2) { animation-delay: 0.2s; }
.animate-fade-up:nth-child(3) { animation-delay: 0.4s; }
.animate-fade-up:nth-child(4) { animation-delay: 0.6s; }
.animate-fade-up:nth-child(5) { animation-delay: 0.8s; }

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ヒーロービジュアル */
.hero-visual {
    margin-bottom: var(--spacing-lg);
}

.hero-images {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    position: relative;
}

.hero-image-item {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-normal);
}

.hero-image-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.hero-image-main {
    width: 280px;
    height: 280px;
    z-index: 2;
    border: 4px solid var(--color-white);
    animation: float 4s ease-in-out infinite;
}

.hero-image-sub1 {
    width: 160px;
    height: 160px;
    position: absolute;
    left: calc(50% - 280px);
    top: 20px;
    z-index: 1;
    border: 3px solid var(--color-white);
    animation: float 4s ease-in-out infinite 0.5s;
}

.hero-image-sub2 {
    width: 140px;
    height: 140px;
    position: absolute;
    right: calc(50% - 260px);
    bottom: -20px;
    z-index: 1;
    border: 3px solid var(--color-white);
    animation: float 4s ease-in-out infinite 1s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@media (max-width: 768px) {
    .hero-images {
        flex-direction: column;
    }

    .hero-image-main {
        width: 200px;
        height: 200px;
    }

    .hero-image-sub1,
    .hero-image-sub2 {
        display: none;
    }
}

/* ============================================
   Section Headers
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-tag {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.9rem;
    letter-spacing: 0.2em;
    color: var(--color-primary);
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: var(--spacing-sm);
}

.section-description {
    font-size: 1rem;
    color: var(--color-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   About Section
   ============================================ */
.about {
    background: var(--color-white);
}

.about-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 700px;
    margin: 0 auto;
}

.about-image {
    position: relative;
    margin-bottom: var(--spacing-md);
}

.image-frame {
    position: relative;
    width: 150px;
    height: 150px;
    border-radius: var(--radius-full);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 4px solid var(--color-white);
}

.image-frame::before {
    content: '';
    position: absolute;
    top: -8px;
    left: -8px;
    width: calc(100% + 16px);
    height: calc(100% + 16px);
    background: var(--gradient-sand);
    border-radius: var(--radius-full);
    z-index: -1;
}

.image-placeholder {
    aspect-ratio: 1;
    background: var(--gradient-sand);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.artist-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.placeholder-icon {
    font-size: 4rem;
    color: var(--color-white);
}

.placeholder-icon svg {
    stroke: var(--color-white);
}

.placeholder-text {
    font-size: 0.9rem;
    color: var(--color-white);
    opacity: 0.8;
}

.about-badge {
    display: inline-block;
    background: var(--color-primary-light);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-sm);
}

.badge-text {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-primary-dark);
}

.about-text {
    text-align: center;
}

.about-name {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.about-role {
    font-size: 0.9rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.about-description {
    color: var(--color-gray);
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.about-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.feature-icon {
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    color: var(--color-primary);
}

.feature-icon svg {
    stroke: var(--color-primary);
}

.feature-text {
    font-size: 0.9rem;
    font-weight: 500;
}

/* ============================================
   Services Section - Horizontal Card Layout
   ============================================ */
.services {
    background: var(--gradient-hero);
}

.services-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.service-card-horizontal {
    display: grid;
    grid-template-columns: 420px 1fr;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    min-height: 320px;
}

.service-card-horizontal:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-card-horizontal.featured {
    border: 3px solid var(--color-primary);
    background: linear-gradient(135deg, #FFFFFF 0%, #FFF5F8 100%);
}

.card-image-area {
    position: relative;
    overflow: hidden;
}

.card-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.card-img-contain {
    object-fit: contain;
    background: linear-gradient(135deg, #FFF5F8 0%, #FDDDE6 100%);
    padding: var(--spacing-md);
}

.service-card-horizontal:hover .card-img {
    transform: scale(1.05);
}

.card-badge {
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-sm);
    background: var(--color-white);
    color: var(--color-primary-dark);
    padding: 0.4rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.card-badge.featured-badge {
    background: var(--gradient-sunset);
    color: var(--color-white);
}

.card-info {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
}

.card-info .card-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--color-dark);
}

.card-info .card-subtitle {
    font-size: 0.9rem;
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.card-info .card-description {
    font-size: 0.95rem;
    color: var(--color-gray);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.card-info .card-features {
    list-style: none;
    margin-bottom: var(--spacing-md);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.card-info .card-features li {
    position: relative;
    padding-left: 1.5rem;
    font-size: 0.85rem;
    color: var(--color-gray);
}

.card-info .card-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    background: var(--color-primary-light);
    border-radius: 50%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23E899AC' stroke-width='3'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
    background-size: 12px;
    background-position: center;
    background-repeat: no-repeat;
}

.card-footer {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-gray-light);
}

.card-footer .card-pricing {
    display: flex;
    flex-direction: column;
}

.card-footer .price-main {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary-dark);
}

.card-footer .price-sizes {
    font-size: 0.8rem;
    color: var(--color-gray);
}

.card-footer .btn-card {
    padding: 0.75rem 2rem;
    white-space: nowrap;
}

/* 旧スタイル（後方互換性のため残す） */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.service-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    position: relative;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.service-card.featured {
    border: 3px solid var(--color-primary);
}

.card-visual {
    position: relative;
    height: 280px;
    background: linear-gradient(135deg, #FFF5F8 0%, #FDDDE6 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.card-visual::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(248, 180, 196, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(181, 216, 232, 0.3) 0%, transparent 50%);
    pointer-events: none;
}

.card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

/* 縦長画像用のスタイル（恵比寿サンドなど） */
.card-visual-contain {
    padding: var(--spacing-sm);
}

.card-image-contain {
    width: auto;
    height: 100%;
    max-width: 100%;
    object-fit: contain;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
}

.service-card:hover .card-image {
    transform: scale(1.08);
}

.card-icon {
    font-size: 5rem;
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-bg-pattern {
    position: absolute;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 70%, rgba(255,255,255,0.3) 0%, transparent 50%);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0);
    }
    50% {
        transform: translate(-20px, -20px);
    }
}

.featured-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: var(--gradient-sunset);
    color: var(--color-white);
    padding: 0.4rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    z-index: 10;
    box-shadow: var(--shadow-md);
}

.card-content {
    padding: var(--spacing-md);
}

.card-tag {
    display: inline-block;
    font-size: 0.75rem;
    color: var(--color-primary-dark);
    background: rgba(248, 180, 196, 0.2);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-sm);
}

.card-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.card-description {
    font-size: 0.9rem;
    color: var(--color-gray);
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.card-features {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.card-features li {
    position: relative;
    padding-left: 1.5rem;
    font-size: 0.85rem;
    color: var(--color-gray);
    margin-bottom: 0.5rem;
}

.card-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

.card-pricing {
    margin-bottom: var(--spacing-xs);
}

.price-from {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.price-unit {
    font-size: 0.85rem;
    color: var(--color-gray);
}

.card-sizes {
    margin-bottom: var(--spacing-md);
}

.card-sizes .size {
    display: block;
    font-size: 0.8rem;
    color: var(--color-gray-light);
}

.btn-card {
    width: 100%;
    background: var(--color-light);
    color: var(--color-dark);
    padding: 0.75rem;
    font-size: 0.9rem;
}

.btn-card:hover {
    background: var(--gradient-sand);
    color: var(--color-white);
}

.btn-featured {
    background: var(--gradient-sunset);
    color: var(--color-white);
}

/* オーダーメイドバナー */
.custom-order-banner {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    box-shadow: var(--shadow-md);
    flex-wrap: wrap;
}

.banner-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.banner-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.banner-description {
    font-size: 0.9rem;
    color: var(--color-gray);
}

.banner-price {
    text-align: center;
}

.banner-price .price {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary);
}

.banner-price .note {
    font-size: 0.85rem;
    color: var(--color-gray);
}

.btn-banner {
    background: var(--gradient-sunset);
    color: var(--color-white);
    white-space: nowrap;
}

.btn-banner:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

/* ============================================
   Gallery Section
   ============================================ */
.gallery {
    background: var(--color-white);
    padding: var(--spacing-xxl) 0;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.gallery-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.gallery-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.gallery-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery-item:hover .gallery-image {
    transform: scale(1.08);
}

/* ============================================
   Flow Section
   ============================================ */
.flow {
    background: var(--gradient-hero);
}

.flow-timeline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    position: relative;
}

.flow-timeline::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 10%;
    right: 10%;
    height: 3px;
    background: var(--gradient-sand);
    z-index: 0;
}

.flow-step {
    position: relative;
    text-align: center;
}

.step-number {
    width: 80px;
    height: 80px;
    background: var(--gradient-sunset);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto var(--spacing-md);
    position: relative;
    z-index: 1;
    box-shadow: var(--shadow-md);
}

.step-content {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.step-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    display: flex;
    justify-content: center;
}

.step-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.step-description {
    font-size: 0.85rem;
    color: var(--color-gray);
    line-height: 1.6;
}

.step-description strong {
    color: var(--color-primary);
}

.flow-note {
    text-align: center;
    margin-top: var(--spacing-lg);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(232, 168, 124, 0.1);
    border-radius: var(--radius-md);
}

.flow-note p {
    font-size: 0.9rem;
    color: var(--color-gray);
}

.flow-note strong {
    color: var(--color-primary);
}

/* ============================================
   Testimonials Section
   ============================================ */
.testimonials {
    background: var(--color-white);
}

.testimonials-slider {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.testimonial-card {
    background: var(--color-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: var(--spacing-sm);
    left: var(--spacing-md);
    font-size: 4rem;
    font-family: var(--font-display);
    color: var(--color-primary-light);
    line-height: 1;
}

.testimonial-rating {
    color: #FFD700;
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
}

.testimonial-text {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--color-gray);
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 600;
    color: var(--color-dark);
}

.author-occasion {
    font-size: 0.85rem;
    color: var(--color-primary);
}

.testimonials-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.nav-btn {
    width: 40px;
    height: 40px;
    border: 2px solid var(--color-gray-light);
    border-radius: 50%;
    background: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--color-gray);
    transition: all var(--transition-fast);
}

.nav-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.nav-dots {
    display: flex;
    gap: 0.5rem;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-gray-light);
    transition: all var(--transition-fast);
}

.dot.active {
    background: var(--color-primary);
    width: 30px;
    border-radius: 5px;
}

/* ============================================
   Contact Section
   ============================================ */
.contact {
    background: var(--gradient-hero);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.info-card {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
}

.info-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    display: flex;
    justify-content: center;
}

.info-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.info-description {
    font-size: 0.9rem;
    color: var(--color-gray);
    margin-bottom: var(--spacing-md);
}

.btn-line {
    background: #06C755;
    color: var(--color-white);
    width: 100%;
}

.btn-line:hover {
    background: #05B04D;
    transform: translateY(-2px);
}

.line-icon {
    display: flex;
    align-items: center;
}

.btn-instagram {
    background: linear-gradient(45deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
    color: var(--color-white);
    width: 100%;
}

.btn-instagram:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(220, 39, 67, 0.4);
}

.info-note {
    font-size: 0.8rem;
    color: var(--color-gray-light);
    margin-top: var(--spacing-sm);
}

.contact-form-wrapper {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.875rem 1rem;
    border: 2px solid var(--color-gray-light);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-submit {
    background: var(--gradient-sunset);
    color: var(--color-white);
    padding: 1rem 2rem;
    font-size: 1rem;
    border: none;
}

.btn-submit:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: #FFF5F8;
    color: var(--color-dark);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(248, 180, 196, 0.3);
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    background: var(--gradient-sand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-logo-image {
    height: 50px;
    width: auto;
    margin-bottom: var(--spacing-xs);
}

.footer-tagline {
    font-size: 0.9rem;
    color: var(--color-gray);
    margin-top: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-primary-light);
    border-radius: 50%;
    color: var(--color-primary-dark);
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--color-primary);
    transform: translateY(-3px);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.footer-column h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 0.5rem;
}

.footer-column a {
    color: var(--color-gray);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.copyright {
    font-size: 0.85rem;
    color: var(--color-gray);
}

.certification {
    font-size: 0.85rem;
    color: var(--color-gray);
}

/* ============================================
   Back to Top Button
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-sunset);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
    z-index: 100;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

/* ============================================
   Responsive Styles
   ============================================ */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .services-grid .service-card:last-child {
        grid-column: span 2;
        max-width: 500px;
        justify-self: center;
    }

    .flow-timeline {
        grid-template-columns: repeat(2, 1fr);
    }

    .flow-timeline::before {
        display: none;
    }

    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .testimonials-slider {
        grid-template-columns: repeat(2, 1fr);
    }

    .testimonials-slider .testimonial-card:last-child {
        display: none;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
        --spacing-md: 1rem;
    }

    html, body {
        overflow-x: hidden;
        width: 100%;
        max-width: 100%;
    }

    section {
        padding: var(--spacing-xl) 0;
        overflow-x: hidden;
    }

    .container {
        padding: 0 1rem;
    }

    .hamburger {
        display: flex;
        width: 32px;
        height: 24px;
    }

    .hamburger span {
        height: 2px;
        background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
        border-radius: 2px;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        max-width: 380px;
        height: 100vh;
        background: linear-gradient(180deg, #fff 0%, #fdf5f8 50%, #fef9fb 100%);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--spacing-lg);
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: -10px 0 40px rgba(248, 180, 196, 0.2);
    }

    .nav-menu::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23f8b4c4' fill-opacity='0.03'%3E%3Ccircle cx='30' cy='30' r='4'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
        pointer-events: none;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu li {
        opacity: 0;
        transform: translateX(30px);
        transition: all 0.3s ease;
    }

    .nav-menu.active li {
        opacity: 1;
        transform: translateX(0);
    }

    .nav-menu.active li:nth-child(1) { transition-delay: 0.1s; }
    .nav-menu.active li:nth-child(2) { transition-delay: 0.15s; }
    .nav-menu.active li:nth-child(3) { transition-delay: 0.2s; }
    .nav-menu.active li:nth-child(4) { transition-delay: 0.25s; }
    .nav-menu.active li:nth-child(5) { transition-delay: 0.3s; }
    .nav-menu.active li:nth-child(6) { transition-delay: 0.35s; }

    .nav-link {
        font-size: 1.15rem;
        padding: 0.8rem 2rem;
        width: 100%;
        text-align: center;
        border-radius: var(--radius-lg);
    }

    .nav-link::before {
        border-radius: var(--radius-lg);
    }

    .nav-cta {
        margin-top: var(--spacing-md);
        padding: 1rem 3rem !important;
        font-size: 1rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .about-image {
        max-width: 400px;
        margin: 0 auto;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .services-grid .service-card:last-child {
        grid-column: span 1;
        max-width: 100%;
    }

    .card-visual {
        height: 240px;
    }

    /* 横型カードのレスポンシブ */
    .service-card-horizontal {
        grid-template-columns: 1fr;
        min-height: auto;
    }

    .card-image-area {
        height: 250px;
    }

    .card-img {
        position: relative;
    }

    .card-info {
        padding: var(--spacing-md);
    }

    .card-info .card-title {
        font-size: 1.3rem;
    }

    .card-info .card-features {
        grid-template-columns: 1fr;
    }

    .card-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .card-footer .btn-card {
        width: 100%;
        text-align: center;
    }

    .custom-order-banner {
        flex-direction: column;
        text-align: center;
    }

    .banner-content {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .flow-timeline {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .gallery {
        overflow: hidden;
    }

    .gallery-item {
        max-width: 100%;
    }

    .testimonials-slider {
        grid-template-columns: 1fr;
    }

    .testimonials-slider .testimonial-card:last-child {
        display: block;
    }

    .contact {
        overflow: hidden;
        padding: 3rem 0;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .contact-info {
        gap: 1rem;
    }

    .contact-cards {
        grid-template-columns: 1fr;
    }

    .info-card {
        padding: 1.25rem;
    }

    .info-icon {
        font-size: 2rem;
        margin-bottom: 0.75rem;
    }

    .info-title {
        font-size: 1rem;
    }

    .info-description {
        font-size: 0.85rem;
        margin-bottom: 1rem;
    }

    .info-note {
        font-size: 0.75rem;
    }

    .btn-line,
    .btn-instagram {
        padding: 0.875rem 1.5rem;
        font-size: 0.9rem;
    }

    .contact-form-wrapper {
        padding: 1.25rem;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .form-group label {
        font-size: 0.85rem;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 0.75rem;
        font-size: 0.9rem;
    }

    .btn-submit {
        padding: 0.875rem 1.5rem;
        font-size: 0.95rem;
    }

    .footer {
        overflow: hidden;
        padding: 2.5rem 0 1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1.5rem;
        padding-bottom: 1.5rem;
    }

    .footer-logo-image {
        height: 40px;
    }

    .footer-tagline {
        font-size: 0.85rem;
    }

    .footer-social {
        justify-content: center;
    }

    .footer-social a {
        width: 36px;
        height: 36px;
    }

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
        text-align: left;
    }

    .footer-column h4 {
        font-size: 0.9rem;
        margin-bottom: 0.5rem;
    }

    .footer-column a {
        font-size: 0.8rem;
    }

    .footer-column li {
        margin-bottom: 0.35rem;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
        padding-top: 1rem;
    }

    .copyright {
        font-size: 0.75rem;
    }

    .hero-stats {
        gap: var(--spacing-lg);
    }

    .stat-number {
        font-size: 2rem;
    }

    /* セクションヘッダー共通 */
    .section-header {
        margin-bottom: 2rem;
    }

    .section-tag {
        font-size: 0.75rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .section-description {
        font-size: 0.9rem;
    }

    .about,
    .services,
    .testimonials,
    .banner {
        overflow: hidden;
    }

    /* サービスカード */
    .service-card-horizontal {
        border-radius: 12px;
    }

    .card-image-area {
        height: 200px;
    }

    .card-info {
        padding: 1rem;
    }

    .card-info .card-title {
        font-size: 1.2rem;
    }

    .card-info .card-description {
        font-size: 0.85rem;
    }

    .card-footer .price-main {
        font-size: 1.25rem;
    }

    /* テスティモニアル */
    .testimonial-card {
        padding: 1.25rem;
    }

    .testimonial-text {
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    html, body {
        overflow-x: hidden;
        width: 100%;
    }

    .container {
        padding: 0 1rem;
        max-width: 100%;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }

    section {
        overflow-x: hidden;
    }

    img {
        max-width: 100%;
    }
}

/* SP専用改行 */
.sp-only {
    display: none;
}

@media (max-width: 768px) {
    .sp-only {
        display: inline;
    }
}

/* スクロールアニメーション用 */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

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