/* ========================================
   吉田凱一 LP - Contemporary Artist × Generative AI
   sc-2026-001
======================================== */

/* ========================================
   オープニングアニメーション - B案: AI生成プロセス
======================================== */
.opening {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #060608;
    transition: opacity 1s cubic-bezier(0.4, 0, 0.2, 1),
                visibility 1s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.opening.fade-out {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

/* フルスクリーン Canvas */
.opening-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

/* CRTスキャンライン */
.opening-scanlines {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: repeating-linear-gradient(
        to bottom,
        transparent 0px,
        transparent 2px,
        rgba(0, 0, 0, 0.12) 2px,
        rgba(0, 0, 0, 0.12) 4px
    );
    pointer-events: none;
    animation: scanlineFlicker 0.15s steps(1) infinite;
}

@keyframes scanlineFlicker {
    0%  { opacity: 0.5; }
    50% { opacity: 0.7; }
    100%{ opacity: 0.5; }
}

/* 中央コンテンツ */
.opening-content {
    position: relative;
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
}

/* ---- 生成中インジケーター ---- */
.opening-generating {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    opacity: 1;
    transition: opacity 0.4s ease;
}

.opening-generating.hide {
    opacity: 0;
}

.gen-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: #00f0ff;
    animation: dotPulse 1s ease-in-out infinite;
}
.gen-dot:nth-child(2) { animation-delay: 0.2s; background: #8b5cf6; }
.gen-dot:nth-child(3) { animation-delay: 0.4s; background: #ff00aa; }

@keyframes dotPulse {
    0%, 100% { opacity: 0.3; transform: scale(0.8); }
    50%       { opacity: 1;   transform: scale(1.2); }
}

.gen-label {
    font-family: 'Inter', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.25em;
    color: rgba(0, 240, 255, 0.7);
    text-transform: uppercase;
    min-width: 120px;
}

/* ---- メインタイトル ---- */
.opening-title-b {
    font-family: 'Inter', sans-serif;
    font-size: clamp(2.2rem, 9vw, 6rem);
    font-weight: 200;
    letter-spacing: 0.3em;
    color: #f0ece4;
    margin: 0;
    display: flex;
    align-items: baseline;
    gap: 0.05em;
    line-height: 1;
}

.title-space {
    display: inline-block;
    width: 0.4em;
}

/* 各文字: ランダムノイズから確定するアニメーション */
.title-char {
    display: inline-block;
    opacity: 0;
    position: relative;
    transition: color 0.2s ease;
}

.title-char.resolving {
    opacity: 1;
    animation: charNoise 0.35s steps(6) forwards;
    color: #00f0ff;
}

.title-char.resolved {
    opacity: 1;
    color: #f0ece4;
    text-shadow:
        0 0 20px rgba(200, 169, 126, 0.5),
        0 0 50px rgba(200, 169, 126, 0.15);
    animation: charSettle 0.3s ease forwards;
}

@keyframes charNoise {
    0%  { transform: translateY(-3px) skewX(-5deg); color: #00f0ff; }
    17% { transform: translateY(2px)  skewX(3deg);  color: #ff00aa; }
    33% { transform: translateY(-1px) skewX(-2deg); color: #8b5cf6; }
    50% { transform: translateY(3px)  skewX(4deg);  color: #ffffff; }
    67% { transform: translateY(-2px) skewX(-3deg); color: #00f0ff; }
    83% { transform: translateY(1px)  skewX(1deg);  color: #ff00aa; }
    100%{ transform: translateY(0)    skewX(0);     color: #f0ece4; }
}

@keyframes charSettle {
    0%   { filter: blur(3px); transform: scale(1.08); }
    100% { filter: blur(0);   transform: scale(1); }
}

/* ---- サブテキスト ---- */
.opening-sub-b {
    display: flex;
    align-items: center;
    gap: 1rem;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.opening-sub-b.show {
    opacity: 1;
    transform: translateY(0);
}

.opening-sub-line {
    width: 32px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(200,169,126,0.6));
}

.opening-sub-b .opening-sub-line:last-child {
    background: linear-gradient(90deg, rgba(200,169,126,0.6), transparent);
}

.opening-sub-text {
    font-family: 'Inter', sans-serif;
    font-size: clamp(0.55rem, 1.5vw, 0.72rem);
    font-weight: 400;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: rgba(200, 169, 126, 0.7);
    margin: 0;
    white-space: nowrap;
}

/* ---- 右下ステータス ---- */
.opening-status {
    position: absolute;
    bottom: 2rem;
    right: 2rem;
    z-index: 4;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.opening-status.show {
    opacity: 1;
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #00f0ff;
    box-shadow: 0 0 8px #00f0ff;
    animation: statusBlink 1.2s ease-in-out infinite;
}

@keyframes statusBlink {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.3; }
}

.status-text {
    font-family: 'Inter', monospace;
    font-size: 0.62rem;
    letter-spacing: 0.2em;
    color: rgba(0, 240, 255, 0.6);
    text-transform: uppercase;
}

/* 本体セクションの表示制御 */
body.opening-active .hero,
body.opening-active .line-cta-hero,
body.opening-active .gallery,
body.opening-active .services,
body.opening-active .cta,
body.opening-active .footer {
    opacity: 0;
}

body:not(.opening-active) .hero,
body:not(.opening-active) .line-cta-hero,
body:not(.opening-active) .gallery,
body:not(.opening-active) .services,
body:not(.opening-active) .cta,
body:not(.opening-active) .footer {
    opacity: 1;
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.2s;
}

@keyframes lineReveal {
    0% { transform: scaleX(0); }
    100% { transform: scaleX(1); }
}

@keyframes textFadeIn {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

/* リセット */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* カラーパレット & 変数 */
:root {
    /* Colors - Contemporary Art / Modern Minimal */
    --primary-dark: #0c0c0c;
    --secondary-dark: #141414;
    --surface-dark: #1c1c1c;
    --accent-primary: #c8a97e;
    --accent-light: #e8d5b5;
    --accent-warm: #d4a574;
    --accent-gradient: linear-gradient(135deg, #c8a97e 0%, #e8d5b5 50%, #d4a574 100%);
    --text-primary: #f0ece4;
    --text-secondary: #9e9a92;
    --text-light: #6b6862;
    --bg-primary: #0c0c0c;
    --bg-secondary: #111111;
    --bg-card: #1a1a1a;
    --border-color: rgba(200, 169, 126, 0.1);
    --border-glow: rgba(200, 169, 126, 0.25);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 30px rgba(200, 169, 126, 0.1);

    /* Typography */
    --font-ja: 'Noto Sans JP', sans-serif;
    --font-en: 'Inter', sans-serif;
    --font-display: 'Inter', 'Noto Sans JP', sans-serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    --space-4xl: 8rem;

    /* Transitions */
    --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ベーススタイル */
html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-ja);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* ========================================
   ヒーローセクション - 動画フルスクリーン
======================================== */
.hero {
    position: relative;
    width: 100%;
    height: 100svh;
    height: 100vh; /* fallback */
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    overflow: hidden;
}

/* 動画背景 - モバイルファースト */
.hero-video-bg {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    display: block;
}

.hero-video-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        rgba(12, 12, 12, 0.85) 0%,
        rgba(12, 12, 12, 0.3) 35%,
        rgba(12, 12, 12, 0) 55%
    );
    pointer-events: none;
}

/* テキストオーバーレイ */
.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: 0 var(--space-md) var(--space-2xl);
    color: #f0ece4;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-text {
    max-width: 600px;
    margin: 0 auto;
}

.hero-kicker {
    font-family: var(--font-en);
    font-size: 0.7rem;
    font-weight: 400;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--accent-primary);
    margin-bottom: var(--space-sm);
    opacity: 0.9;
}

.hero-title {
    font-size: clamp(2rem, 8vw, 3.5rem);
    font-weight: 600;
    line-height: 1.15;
    margin-bottom: 0;
    letter-spacing: 0.08em;
    color: #f0ece4;
}

.hero-title-en {
    display: block;
    font-family: var(--font-en);
    font-size: clamp(0.85rem, 3vw, 1.2rem);
    font-weight: 300;
    opacity: 0.7;
    margin-top: var(--space-xs);
    letter-spacing: 0.2em;
}

.hero-divider {
    width: 32px;
    height: 1px;
    background: var(--accent-primary);
    margin: var(--space-md) auto;
    opacity: 0.6;
}

.hero-subtitle {
    font-size: clamp(0.75rem, 2.5vw, 0.95rem);
    font-weight: 300;
    color: rgba(240, 236, 228, 0.6);
    letter-spacing: 0.15em;
    margin-bottom: 0;
}

/* スクロールヒント */
.hero-scroll-hint {
    margin-top: var(--space-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.4;
}

.hero-scroll-hint span {
    font-family: var(--font-en);
    font-size: 0.6rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent-primary);
}

.scroll-line {
    width: 1px;
    height: 32px;
    background: var(--accent-primary);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.5); transform-origin: top; }
    50% { opacity: 1; transform: scaleY(1); transform-origin: top; }
}

/* PCでの動画表示最適化 */
@media (min-width: 768px) {
    .hero-video {
        object-position: center center;
    }
    
    .hero-content {
        padding-bottom: var(--space-3xl);
    }
}

@media (min-width: 1024px) {
    .hero {
        height: 100vh;
    }
    
    .hero-video {
        /* PCでは縦長動画を中央に配置、カバーで埋める */
        object-fit: cover;
        object-position: center center;
    }
}

/* ========================================
   ギャラリーセクション - 3D円柱カルーセル
======================================== */
.gallery {
    padding: var(--space-4xl) 0 var(--space-3xl);
    background: var(--bg-secondary);
    overflow: hidden;
}

/* 3Dシーン（視点） */
.carousel-scene {
    width: 100%;
    height: 320px;
    perspective: 1200px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: visible;
    cursor: grab;
    -webkit-user-select: none;
    user-select: none;
}

.carousel-scene:active {
    cursor: grabbing;
}

/* 回転するドラム */
.carousel-drum {
    width: 200px;
    height: 260px;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.1s ease-out;
}

/* 各セル */
.carousel-cell {
    position: absolute;
    width: 200px;
    height: 260px;
    left: 0;
    top: 0;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
    backface-visibility: hidden;
    transition: box-shadow 0.3s ease;
}

.carousel-cell img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    pointer-events: none;
}

/* 前面セルのハイライト */
.carousel-cell.is-front {
    box-shadow: 0 12px 40px rgba(200, 169, 126, 0.3), 0 0 60px rgba(200, 169, 126, 0.08);
}

/* ライトボックス */
.gallery-lightbox {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(12, 12, 12, 0.95);
    backdrop-filter: blur(12px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    padding: var(--space-lg);
}

.gallery-lightbox.is-open {
    opacity: 1;
    visibility: visible;
}

.gallery-lightbox img {
    max-width: 90vw;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.gallery-lightbox.is-open img {
    transform: scale(1);
}

.lightbox-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: #fff;
    cursor: pointer;
    transition: var(--transition-base);
    z-index: 10;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* レスポンシブ */
@media (min-width: 768px) {
    .carousel-scene {
        height: 420px;
        perspective: 1400px;
    }

    .carousel-drum {
        width: 280px;
        height: 360px;
    }

    .carousel-cell {
        width: 280px;
        height: 360px;
        border-radius: 12px;
    }
}

@media (min-width: 1024px) {
    .carousel-scene {
        height: 480px;
        perspective: 1600px;
    }

    .carousel-drum {
        width: 320px;
        height: 400px;
    }

    .carousel-cell {
        width: 320px;
        height: 400px;
    }
}

/* ========================================
   サービスセクション
======================================== */
.services {
    padding: var(--space-4xl) 0;
    background: var(--bg-primary);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-title {
    font-family: var(--font-en);
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    font-weight: 300;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

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

.service-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.service-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: var(--space-xl);
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition-base);
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--accent-gradient);
    transform: scaleY(0);
    transform-origin: top;
    transition: var(--transition-base);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(200, 169, 126, 0.05);
    border-color: var(--border-glow);
}

.service-card:hover::before {
    transform: scaleY(1);
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.card-number {
    font-family: var(--font-en);
    font-size: 2rem;
    font-weight: 200;
    color: var(--accent-primary);
    opacity: 0.4;
}

.card-label {
    font-family: var(--font-en);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-light);
}

.card-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    letter-spacing: -0.01em;
}

.card-description {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-en);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--accent-primary);
    transition: var(--transition-base);
}

.card-link span {
    transition: var(--transition-base);
}

.service-card:hover .card-link span {
    transform: translateX(4px);
}

.arrow-icon {
    transition: var(--transition-base);
}

.service-card:hover .arrow-icon {
    transform: translateX(4px);
}



/* ========================================
   LINE CTA - ヒーロー直下
======================================== */
.line-cta-hero {
    padding: var(--space-2xl) 0;
    background: var(--bg-primary);
    text-align: center;
}

.btn-line-main {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1rem 2.5rem;
    background: #06C755;
    color: #ffffff;
    font-family: var(--font-ja);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
    box-shadow: 0 4px 16px rgba(6, 199, 85, 0.3);
}

.btn-line-main:hover {
    background: #05b34c;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(6, 199, 85, 0.4);
}

.btn-line-main .line-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

/* ========================================
   CTA内 SNSボタン
======================================== */
.cta-sns {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-2xl);
}

.btn-sns {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.85rem 1.8rem;
    color: var(--text-primary);
    text-decoration: none;
    font-family: var(--font-en);
    font-size: 0.9rem;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50px;
    transition: var(--transition-base);
}

.btn-sns svg {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
}

.btn-instagram:hover {
    background: rgba(225, 48, 108, 0.15);
    border-color: #E1306C;
    color: #E1306C;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(225, 48, 108, 0.2);
}

.btn-facebook:hover {
    background: rgba(24, 119, 242, 0.15);
    border-color: #1877F2;
    color: #1877F2;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(24, 119, 242, 0.2);
}

/* ========================================
   CTAセクション
======================================== */
.cta {
    padding: var(--space-4xl) 0;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--surface-dark) 100%);
    color: var(--text-primary);
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--accent-gradient);
    opacity: 0.3;
}

.cta-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 600;
    margin-bottom: var(--space-md);
    letter-spacing: -0.01em;
}

.cta-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
    line-height: 1.7;
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    max-width: 400px;
    margin: 0 auto var(--space-2xl);
}

.cta-buttons .btn {
    width: 100%;
    max-width: 280px;
}

.cta-buttons .btn-line-main {
    width: 100%;
    max-width: 300px;
    border-radius: 50px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border-radius: 8px;
    font-family: var(--font-ja);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: var(--transition-base);
}

.btn svg {
    width: 20px;
    height: 20px;
    transition: var(--transition-base);
}

/* LINEボタン */
.btn-primary {
    background: #06C755;
    color: #ffffff;
}

.btn-primary:hover {
    background: #05b34c;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(6, 199, 85, 0.4);
}

.btn-primary:hover svg {
    transform: translateY(-2px);
}

/* 連絡先保存ボタン */
.btn-secondary {
    background: rgba(200, 169, 126, 0.08);
    color: var(--accent-primary);
    border: 1px solid rgba(200, 169, 126, 0.25);
}

.btn-secondary:hover {
    background: rgba(200, 169, 126, 0.12);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(200, 169, 126, 0.1);
}

.btn-secondary:hover svg {
    transform: translateY(2px);
}

.cta-info {
    display: flex;
    justify-content: center;
    gap: var(--space-2xl);
    flex-wrap: wrap;
    padding-top: var(--space-2xl);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.info-item {
    text-align: center;
}

.info-label {
    font-family: var(--font-en);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-light);
    margin-bottom: var(--space-xs);
}

.info-value {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* ========================================
   連絡先保存モーダル
======================================== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal.is-open {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 420px;
    max-height: 90vh;
    overflow-y: auto;
    background: var(--surface-dark);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5), 0 0 40px rgba(200, 169, 126, 0.03);
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal.is-open .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 50%;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-base);
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.modal-header {
    padding: 2rem 2rem 1rem;
    text-align: center;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.modal-body {
    padding: 0 1.5rem 2rem;
}

.save-section {
    margin-bottom: 1.5rem;
}

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

.save-section-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 0.75rem;
}

.device-icon {
    font-size: 1rem;
}

.save-steps {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.save-step {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    background: var(--bg-card);
    padding: 1rem;
    border-radius: 12px;
}

.step-number {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-primary);
    color: var(--primary-dark);
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 50%;
}

.step-content p {
    margin: 0 0 0.25rem;
    font-size: 0.9rem;
    color: var(--text-primary);
}

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

.step-icon {
    font-size: 1.2rem;
}

.save-section-vcard {
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.btn-vcard {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 1rem;
    background: rgba(200, 169, 126, 0.08);
    color: var(--accent-primary);
    border: 1px solid rgba(200, 169, 126, 0.25);
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
}

.btn-vcard:hover {
    background: rgba(200, 169, 126, 0.12);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(200, 169, 126, 0.15);
}

/* ========================================
   フッター
======================================== */
.footer {
    padding: var(--space-2xl) 0;
    background: var(--primary-dark);
    border-top: 1px solid var(--border-color);
}

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

.footer-name {
    font-family: var(--font-en);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.footer-title {
    font-family: var(--font-en);
    font-size: 0.85rem;
    color: var(--text-light);
}

.footer-id {
    font-family: var(--font-en);
    font-size: 0.75rem;
    color: var(--accent-primary);
    letter-spacing: 0.1em;
    margin-bottom: var(--space-xs);
}

.footer-copy {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* ========================================
   サービス詳細ページ
======================================== */
.service-hero {
    padding: var(--space-3xl) 0 var(--space-2xl);
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--surface-dark) 100%);
    color: var(--text-primary);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: var(--space-xl);
    transition: var(--transition-base);
}

.back-link:hover {
    color: var(--accent-cyan);
    transform: translateX(-4px);
}

.service-hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.service-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: rgba(200, 169, 126, 0.06);
    border: 1px solid rgba(200, 169, 126, 0.15);
    border-radius: 24px;
    font-family: var(--font-en);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent-primary);
    margin-bottom: var(--space-lg);
}

.service-hero-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

.service-hero-description {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    line-height: 1.7;
}

.service-detail {
    padding: var(--space-4xl) 0;
    background: var(--bg-secondary);
}

.detail-content {
    max-width: 1000px;
    margin: 0 auto;
}

.detail-section {
    margin-bottom: var(--space-4xl);
}

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

.detail-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-2xl);
    text-align: center;
}

.detail-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

.detail-item {
    background: var(--bg-card);
    padding: var(--space-xl);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition-base);
}

.detail-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--border-glow);
}

.detail-item h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.detail-item p {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.service-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.service-list-item {
    display: flex;
    gap: var(--space-lg);
    background: var(--bg-card);
    padding: var(--space-xl);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition-base);
}

.service-list-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.list-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(200, 169, 126, 0.06);
    border: 1px solid rgba(200, 169, 126, 0.12);
    color: var(--accent-primary);
    font-family: var(--font-en);
    font-size: 1.25rem;
    font-weight: 700;
    border-radius: 12px;
}

.list-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.list-content p {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.flow-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.flow-item {
    position: relative;
    padding-left: var(--space-3xl);
}

.flow-item::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 50px;
    bottom: -40px;
    width: 2px;
    background: var(--border-color);
}

.flow-item:last-child::before {
    display: none;
}

.flow-step {
    position: absolute;
    left: 0;
    top: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-primary);
    color: var(--primary-dark);
    font-family: var(--font-en);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 50%;
}

.flow-item h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.flow-item p {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* ========================================
   レスポンシブ: タブレット以上
======================================== */
@media (min-width: 768px) {
    .service-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-xl);
    }

    .cta-buttons {
        flex-direction: row;
        justify-content: center;
        max-width: 100%;
    }

    .cta-buttons .btn {
        width: auto;
        max-width: none;
    }

    .detail-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-xl);
    }
}

/* ========================================
   レスポンシブ: デスクトップ
======================================== */
@media (min-width: 1024px) {
    .service-card {
        padding: var(--space-2xl);
    }
}

/* ========================================
   アクセシビリティ
======================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

a:focus,
button:focus {
    outline: 2px solid var(--accent-primary);
    outline-offset: 4px;
}

/* ========================================
   ユーティリティ
======================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}