/**
 * 売上キャンペーンサイト スタイルシート
 * カラーパレット: kyoki-railway.co.jp準拠
 */

/* === Google Fonts === */
@import url('https://fonts.googleapis.com/css2?family=Kaisei+Decol:wght@400;500;700&display=swap');

/* === CSS Variables === */
:root {
    --color-primary: #44aacc;
    --color-primary-dark: #3a94b3;
    --color-accent: #ff9933;
    --color-pink: #ff69b4;
    --color-purple: #9b59b6;
    --color-background: #fafafa;
    --color-surface: #ffffff;
    --color-text: #212121;
    --color-text-secondary: #757575;
    --color-border: #e0e0e0;
    --color-progress-bg: #e0e0e0;
    --font-family:
        'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Hiragino Sans', 'Noto Sans JP',
        sans-serif;
    --font-heading: 'Kaisei Decol', serif;
    --max-width: 1200px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --border-radius: 8px;
    --border-radius-sm: 6px;
    --elevation-1: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
    --elevation-2: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23);
    --elevation-3: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* === Reset & Base === */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--color-text);
    background-color: var(--color-background);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow-x: hidden;
}

/* 背景装飾 - 大きな円弧 */
body::before {
    content: '';
    position: fixed;
    top: -30%;
    right: -15%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, rgba(68, 170, 204, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
    pointer-events: none;
}

body::after {
    content: '';
    position: fixed;
    bottom: -20%;
    left: -10%;
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, rgba(255, 153, 51, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
    pointer-events: none;
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

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

/* === Header === */
.header {
    background-color: var(--color-surface);
    box-shadow: var(--elevation-1);
    padding: var(--spacing-sm) var(--spacing-md);
}

.header-container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: inline-block;
    text-decoration: none;
}

.logo:hover {
    text-decoration: none;
    opacity: 0.8;
    transition: var(--transition);
}

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

.company-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-primary);
    padding: 0.5rem var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: var(--transition);
    white-space: nowrap;
}

.company-link:hover {
    background-color: rgba(68, 170, 204, 0.08);
    text-decoration: none;
}

/* === Main === */
.main {
    flex: 1;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-md);
    width: 100%;
}

/* === Footer === */
.footer {
    background-color: var(--color-surface);
    box-shadow: 0 -1px 3px rgba(0, 0, 0, 0.12);
    padding: var(--spacing-md);
    text-align: center;
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

/* === Campaign List === */
.campaign-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.campaign-list-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

/* === Campaign Card === */
.campaign-card {
    display: block;
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--elevation-1);
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
}

.campaign-card:hover {
    box-shadow: var(--elevation-2);
    transform: translateY(-2px);
    text-decoration: none;
}

.campaign-card-image {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background-color: var(--color-border);
}

.campaign-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.campaign-card-body {
    padding: var(--spacing-sm);
}

.campaign-card-title {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.campaign-card-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.campaign-card-remaining {
    color: var(--color-accent);
    font-weight: bold;
}

.campaign-card-ended {
    color: var(--color-text-secondary);
}

/* === Progress Bar === */
.progress-bar {
    width: 100%;
    height: 32px;
    background-color: var(--color-progress-bg);
    border-radius: 16px;
    overflow: visible;
    position: relative;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.progress-fill {
    height: 100%;
    overflow: visible;
    background-color: var(--color-primary);
    transition: width 0.3s ease;
    position: relative;
    border-radius: 16px;
}

/* 進捗バーのシャイン効果 */
.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.3), transparent);
    border-radius: 16px 16px 0 0;
}

.progress-label {
    position: absolute;
    top: 50%;
    left: var(--spacing-sm);
    transform: translateY(-50%);
    font-size: 0.875rem;
    font-weight: bold;
    color: white;
    z-index: 1;
    pointer-events: none;
}

/* === Campaign Detail === */
.campaign-detail {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    position: relative;
}

.campaign-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 0.0125em;
    position: relative;
    padding-bottom: 0.5rem;
    padding-left: 3rem;
    margin-bottom: var(--spacing-md);
}

/* タイトルの電車アイコン */
.campaign-title::before {
    content: '🚃';
    position: absolute;
    bottom: 0.5rem;
    left: 0;
    font-size: 2rem;
    line-height: 1;
    z-index: 1;
    animation: train-pull 3s ease-in-out infinite;
}

@keyframes train-pull {
    0%,
    100% {
        transform: translateX(0);
    }
    50% {
        transform: translateX(-5px);
    }
}

/* タイトル下の線路風装飾（直線） */
.campaign-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: repeating-linear-gradient(
        90deg,
        #212121 0px,
        #212121 10px,
        #ffffff 10px,
        #ffffff 20px
    );
    box-shadow:
        0 1px 0 #212121,
        0 -1px 0 #212121;
}

.campaign-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    position: relative;
}

.campaign-image {
    min-width: 0;
    border-radius: var(--border-radius);
    overflow: visible;
    background-color: transparent;
    aspect-ratio: 16 / 9;
    position: relative;
    filter: drop-shadow(0 3px 6px rgba(0, 0, 0, 0.16)) drop-shadow(0 3px 6px rgba(0, 0, 0, 0.23));
    transform: rotate(-0.5deg);
    transition: transform 0.3s ease;
}

.campaign-image:hover {
    transform: rotate(0deg) scale(1.01);
}

.campaign-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: var(--border-radius);
    /* 改札鋏の入鋏跡（M字の切り込み）- 右から1/4の位置、縦棒が垂直なM字 */
    clip-path: polygon(
        0% 0%,
        100% 0%,
        100% 100%,
        calc(75% + 18px) 100%,
        calc(75% + 18px) calc(100% - 35px),
        75% calc(100% - 25px),
        calc(75% - 18px) calc(100% - 35px),
        calc(75% - 18px) 100%,
        0% 100%
    );
}

.campaign-status {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: var(--spacing-md);
}

.campaign-description {
    color: var(--color-text);
    white-space: pre-wrap;
}

.campaign-info {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    padding: var(--spacing-sm);
    box-shadow: var(--elevation-1);
}

.campaign-info-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--color-border);
}

.campaign-info-row:last-child {
    border-bottom: none;
}

.campaign-info-label {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.campaign-info-value {
    font-weight: 500;
}

.campaign-sales-header {
    margin-bottom: var(--spacing-xs);
}

.campaign-sales-amount {
    font-size: 1.75rem;
    font-weight: 500;
    color: var(--color-accent);
    letter-spacing: 0.0125em;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
}

.campaign-sales-amount > span:first-child {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    font-weight: 400;
}

.campaign-sales-amount-value {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.campaign-sales-info-button {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    font-size: 1rem;
    color: var(--color-text-secondary);
    cursor: help;
    transition: var(--transition);
}

.campaign-sales-info-button:hover {
    color: var(--color-primary);
}

.campaign-sales-info-popup {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-text);
    color: white;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    line-height: 1.6;
    width: max-content;
    max-width: 300px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
    box-shadow: var(--elevation-2);
    z-index: 10;
}

.campaign-sales-info-popup::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--color-text);
}

.campaign-sales-info-button:hover .campaign-sales-info-popup {
    opacity: 1;
    visibility: visible;
}

/* === Sales Links === */

.sales-links-button {
    display: inline-block;
    padding: 0.75rem var(--spacing-md);
    background-color: var(--color-primary);
    color: white;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.0892857143em;
    box-shadow: var(--elevation-1);
    transition: var(--transition);
    text-decoration: none;
    width: 100%;
    text-align: center;
}

.sales-links-button:hover {
    box-shadow: var(--elevation-2);
    text-decoration: none;
    filter: brightness(1.1);
}

.sales-sites-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

.sales-link-button {
    display: inline-block;
    padding: 0.625rem var(--spacing-sm);
    background-color: var(--color-primary);
    color: white;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.0892857143em;
    box-shadow: var(--elevation-1);
    transition: var(--transition);
}

.sales-link-button:hover {
    box-shadow: var(--elevation-2);
    text-decoration: none;
    filter: brightness(1.1);
}

/* === Sales Site Colors === */
.site-booth {
    background-color: #fc4d50;
}

.site-stores {
    background-color: #00c2b2;
}

.site-kindle {
    background-color: #ff9900;
}

.site-junkudo {
    background-color: #003c71;
}

/* === Share Section === */
.share-section {
    margin-top: var(--spacing-lg);
    text-align: center;
}

.share-title {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}

.share-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
}

.share-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    color: white;
    font-size: 1.25rem;
    transition: var(--transition);
    box-shadow: var(--elevation-1);
}

.share-button:hover {
    box-shadow: var(--elevation-2);
    transform: translateY(-2px);
    text-decoration: none;
}

.share-twitter {
    background-color: #000000;
}

.share-bluesky {
    background-color: #0085ff;
}

.share-misskey {
    background-color: #86b300;
}

.share-copy {
    background-color: var(--color-text-secondary);
    border: none;
    cursor: pointer;
}

.share-facebook {
    background-color: #1877f2;
}

/* === Campaign Content Card === */
.campaign-content-card {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    box-shadow: var(--elevation-1);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

/* コンテンツカードの装飾 */
.campaign-content-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 30%;
    height: 150%;
    background: linear-gradient(
        135deg,
        transparent 40%,
        rgba(68, 170, 204, 0.03) 50%,
        transparent 60%
    );
    pointer-events: none;
    transform: rotate(15deg);
}

.campaign-content-card h2 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    letter-spacing: 0.0125em;
    padding-bottom: 0.4rem;
    padding-left: 2.5rem;
    position: relative;
    display: block;
    width: fit-content;
}

.campaign-content-card h2:first-child {
    margin-top: 0;
}

.campaign-content-card h2::before {
    content: '🚃';
    position: absolute;
    bottom: 0.4rem;
    left: 0;
    font-size: 1.5rem;
    line-height: 1;
    animation: train-pull 3s ease-in-out infinite;
}

.campaign-content-card h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: repeating-linear-gradient(
        90deg,
        #212121 0px,
        #212121 8px,
        #ffffff 8px,
        #ffffff 16px
    );
    box-shadow:
        0 1px 0 #212121,
        0 -1px 0 #212121;
}

.campaign-content-card ul {
    list-style: none;
    padding: 0;
    margin: var(--spacing-md) 0;
}

.campaign-content-card ul li {
    position: relative;
    padding-left: 2rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.campaign-content-card ul li::before {
    content: '\f058';
    font: var(--fa-font-solid);
    position: absolute;
    left: 0;
    top: 0.1em;
    font-size: 1.25rem;
    color: var(--color-primary);
}

.campaign-content-body {
    color: var(--color-text);
    line-height: 1.8;
}

.campaign-content-body > *:first-child {
    margin-top: 0;
}

.campaign-content-body h1,
.campaign-content-body h2,
.campaign-content-body h3,
.campaign-content-body h4,
.campaign-content-body h5,
.campaign-content-body h6 {
    font-family: var(--font-heading);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
    letter-spacing: 0.0125em;
}

.campaign-content-body h1 {
    font-size: 1.75rem;
    padding-bottom: var(--spacing-xs);
    border-bottom: 3px solid var(--color-primary);
    position: relative;
}

.campaign-content-body h1::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 80px;
    height: 3px;
    background-color: var(--color-accent);
}

.campaign-content-body h2 {
    font-size: 1.5rem;
    font-weight: 700;
    padding-bottom: 0.4rem;
    padding-left: 2.5rem;
    position: relative;
    display: block;
    width: fit-content;
}

.campaign-content-body h2::before {
    content: '🚃';
    position: absolute;
    bottom: 0.4rem;
    left: 0;
    font-size: 1.5rem;
    line-height: 1;
    animation: train-pull 3s ease-in-out infinite;
}

.campaign-content-body h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: repeating-linear-gradient(
        90deg,
        #212121 0px,
        #212121 8px,
        #ffffff 8px,
        #ffffff 16px
    );
    box-shadow:
        0 1px 0 #212121,
        0 -1px 0 #212121;
}

.campaign-content-body h3 {
    font-size: 1.25rem;
    padding-left: var(--spacing-sm);
    border-left: 4px solid var(--color-primary);
}

.campaign-content-body h4 {
    font-size: 1.125rem;
    padding-left: var(--spacing-sm);
    border-left: 3px solid var(--color-accent);
}

.campaign-content-body h5 {
    font-size: 1rem;
    color: var(--color-primary);
}

.campaign-content-body h6 {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    font-weight: 600;
}

.campaign-content-body p {
    margin-bottom: var(--spacing-md);
}

.campaign-content-body ul,
.campaign-content-body ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.campaign-content-body li {
    margin-bottom: var(--spacing-xs);
}

.campaign-content-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    margin: var(--spacing-md) 0;
}

.campaign-content-body blockquote {
    margin: var(--spacing-md) 0;
    padding: var(--spacing-md);
    border-left: 4px solid var(--color-primary);
    background-color: var(--color-background);
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.campaign-content-body code {
    background-color: var(--color-background);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.875em;
}

.campaign-content-body pre {
    background-color: var(--color-background);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    overflow-x: auto;
    margin: var(--spacing-md) 0;
}

.campaign-content-body pre code {
    background-color: transparent;
    padding: 0;
}

/* === Featured Products === */
.featured-products-section {
    margin-top: var(--spacing-lg);
}

.featured-products-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    position: relative;
    display: block;
    width: fit-content;
    padding-bottom: 0.25rem;
    padding-left: 2.2rem;
}

.featured-products-title::before {
    content: '🚃';
    position: absolute;
    bottom: 0.25rem;
    left: 0;
    font-size: 1.25rem;
    line-height: 1;
    animation: train-pull 3s ease-in-out infinite;
}

.featured-products-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: repeating-linear-gradient(
        90deg,
        #212121 0px,
        #212121 7px,
        #ffffff 7px,
        #ffffff 14px
    );
    box-shadow:
        0 1px 0 #212121,
        0 -1px 0 #212121;
}

.featured-products-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.featured-product-card {
    background-color: transparent;
    border-radius: var(--border-radius);
    overflow: visible;
    filter: drop-shadow(0 1px 3px rgba(0, 0, 0, 0.12)) drop-shadow(0 1px 2px rgba(0, 0, 0, 0.24));
    transition:
        transform 0.3s var(--bounce),
        filter 0.3s var(--bounce);
    display: flex;
    flex-direction: column;
    border: 2px solid transparent;
    position: relative;
}

.featured-product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    /* 改札鋏の入鋏跡（M字の切り込み）- 右から1/4の位置 */
    clip-path: polygon(
        0% 0%,
        100% 0%,
        100% 100%,
        calc(75% + 10px) 100%,
        calc(75% + 10px) calc(100% - 20px),
        75% calc(100% - 15px),
        calc(75% - 10px) calc(100% - 20px),
        calc(75% - 10px) 100%,
        0% 100%
    );
    z-index: -1;
}

.featured-product-card:hover {
    transform: translateY(-4px) scale(1.02) rotate(-0.5deg);
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.19)) drop-shadow(0 6px 6px rgba(0, 0, 0, 0.23));
}

.featured-product-image {
    aspect-ratio: 1 / 1;
    overflow: hidden;
    background-color: var(--color-border);
    position: relative;
}

.featured-product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s var(--bounce);
}

.featured-product-card:hover .featured-product-image img {
    transform: scale(1.1);
}

.featured-product-preorder-badge {
    position: absolute;
    top: var(--spacing-xs);
    left: var(--spacing-xs);
    background: linear-gradient(135deg, var(--color-accent), #ff6b35);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(255, 153, 51, 0.4);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    animation: pulse-badge 2s ease-in-out infinite;
}

@keyframes pulse-badge {
    0%,
    100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.featured-product-title {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.featured-product-price-row {
    padding: 0 var(--spacing-sm);
    margin-top: auto;
    display: flex;
    align-items: baseline;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.featured-product-price {
    font-size: 1.125rem;
    font-weight: 800;
    color: var(--color-primary);
}

.featured-product-delivery {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

.featured-product-links {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    padding: var(--spacing-xs) var(--spacing-sm) var(--spacing-sm);
}

.featured-product-link {
    display: inline-block;
    padding: 6px 12px;
    color: white;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    box-shadow: var(--elevation-1);
    transition: all 0.2s var(--bounce);
    position: relative;
    overflow: hidden;
}

.featured-product-link::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition:
        width 0.6s,
        height 0.6s;
}

.featured-product-link:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--elevation-2);
    text-decoration: none;
}

.featured-product-link:hover::before {
    width: 300px;
    height: 300px;
}

.featured-product-link:active {
    transform: translateY(0) scale(0.98);
}

/* === イラスト装飾プレースホルダー === */
/*
  使い方: HTMLに以下のような要素を追加
  <div class="deco-illustration deco-illustration-top-right" data-placeholder="キャラクターイラスト"></div>
*/

.deco-illustration {
    position: absolute;
    width: 150px;
    height: 150px;
    background: linear-gradient(135deg, rgba(255, 105, 180, 0.15), rgba(68, 170, 204, 0.15));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    text-align: center;
    padding: 1rem;
    border: 2px dashed rgba(68, 170, 204, 0.3);
    pointer-events: none;
    z-index: 0;
}

.deco-illustration::before {
    content: attr(data-placeholder);
    font-style: italic;
}

/* 配置パターン */
.deco-illustration-top-right {
    top: 5%;
    right: 5%;
}

.deco-illustration-bottom-left {
    bottom: 5%;
    left: 5%;
}

.deco-illustration-middle-left {
    top: 40%;
    left: -5%;
    transform: translateY(-50%);
}

.deco-illustration-middle-right {
    top: 40%;
    right: -5%;
    transform: translateY(-50%);
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .deco-illustration {
        width: 100px;
        height: 100px;
        font-size: 0.65rem;
    }
}

/* === Empty State === */
.empty-state {
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--color-text-secondary);
}

/* === Error State === */
.error-state {
    text-align: center;
    padding: var(--spacing-lg);
    color: #dc2626;
}

/* === Responsive === */
@media (min-width: 768px) {
    .campaign-layout {
        grid-template-columns: 2fr 1fr;
    }

    .campaign-content-card {
        padding: calc(var(--spacing-lg) * 1.5) calc(var(--spacing-lg) * 2);
    }
}

@media (max-width: 767px) {
    .campaign-content-card {
        margin-left: calc(var(--spacing-md) * -1);
        margin-right: calc(var(--spacing-md) * -1);
        border-radius: 0;
        width: calc(100% + var(--spacing-md) * 2);
    }
}

@media (max-width: 600px) {
    :root {
        --spacing-md: 1rem;
    }

    .campaign-title {
        font-size: 1.25rem;
    }

    .campaign-sales-amount-value {
        font-size: 1.25rem;
    }

    .campaign-sales-info-button {
        width: 20px;
        height: 20px;
        font-size: 0.875rem;
    }

    .campaign-sales-info-popup {
        max-width: 250px;
        font-size: 0.8125rem;
    }

    .progress-bar {
        height: 28px;
    }

    .progress-label {
        font-size: 0.8125rem;
    }
}

/* === Preview Banner === */
.preview-banner {
    background-color: #fff3cd;
    border: 1px solid #ffc107;
    color: #856404;
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 500;
}

.preview-banner i {
    font-size: 1.125rem;
}

/* === ストア選択ダイアログ（CSSのみ実装） === */

/* ダイアログ本体 - デフォルトで非表示 */
.store-dialog {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9999;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transition:
        opacity 0.2s ease-out,
        visibility 0.2s ease-out;
}

/* :targetでダイアログを表示 */
.store-dialog:target {
    pointer-events: auto;
    opacity: 1;
    visibility: visible;
}

/* 背景（バックドロップ） */
.store-dialog-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 1;
    text-decoration: none;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.store-dialog-content {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    box-shadow: var(--elevation-3);
    max-width: 400px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    z-index: 2;
}

.store-dialog:target .store-dialog-content {
    animation: slideUp 0.3s var(--bounce);
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.store-dialog-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.store-dialog-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
}

.store-dialog-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: transparent;
    color: var(--color-text-secondary);
    transition: all 0.2s ease;
    font-size: 1.25rem;
}

.store-dialog-close:hover {
    background-color: var(--color-border);
    color: var(--color-text);
    text-decoration: none;
}

.store-dialog-links {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.store-dialog-link {
    display: block;
    padding: var(--spacing-sm);
    color: white;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    box-shadow: var(--elevation-1);
    transition: all 0.2s var(--bounce);
}

.store-dialog-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--elevation-2);
    text-decoration: none;
}

.store-dialog-link:active {
    transform: translateY(0);
}

/* カードラッパー（ダイアログを含む） */
.featured-product-card-wrapper {
    position: relative;
    display: flex;
}

/* カードリンクのホバー時に下線を出さない */
.featured-product-card-wrapper > a.featured-product-card {
    text-decoration: none;
    display: flex;
    flex: 1;
}

.featured-product-card-wrapper > a.featured-product-card:hover {
    text-decoration: none;
}

/* ダイアログはflexレイアウトから除外 */
.featured-product-card-wrapper > .store-dialog {
    position: fixed !important;
    flex: none !important;
    width: 100vw !important;
    height: 100vh !important;
}