:root {
    --text: #f0f4f8;
    --pink: #ff4b93;
    --accent: #f4d03f; /* Soft gold replacing green */
    --greenA: #2be77a;
    --greenB: #0fbe55;
    --radius: 12px;
    --shadow: 0 10px 28px rgba(0, 0, 0, 0.65);
    --frame-width: 12px;
    --frame-slice: 32;
    --glow: rgba(255, 75, 147, 0.6);
    --glass-bg: rgba(255, 255, 255, 0.05);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    color: var(--text);
    font-family: "Noto Sans JP", "Roboto Condensed", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
    background: #000 url("/static/images/images/ChatGPTImage.png") no-repeat center/cover fixed;
    min-height: 100vh;
    overflow-x: hidden;
}

.background-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.65));
}

#seasonParticles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    mix-blend-mode: screen;
}

.wrap {
    max-width: 1600px;
    margin: 0 auto;
    padding: 20px;
}

.container {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 20px;
    align-items: start;
}

.section-header {
    text-align: left;
    margin-bottom: 24px;
    position: relative;
    animation: slideIn 1s ease-out;
}

.section-header .accent-line {
    width: 80px;
    height: 5px;
    background: linear-gradient(90deg, var(--pink), var(--accent));
    margin: 0 0 12px;
    border-radius: 2px;
    box-shadow: 0 0 10px var(--glow);
}

.section-header h2 {
    font-size: 28px;
    font-weight: 900;
    background: linear-gradient(45deg, var(--pink), var(--text));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin: 0 0 8px;
    text-shadow: 0 3px 10px var(--glow);
}

.section-header p {
    font-size: 14px;
    opacity: 0.9;
    color: #d1d9e6;
    margin: 0;
}

.hotel-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.hotel-card {
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 75, 147, 0.25);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    position: relative;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s;
}

.hotel-card:hover {
    transform: translateY(-8px) scale(1.04);
    box-shadow: 0 0 20px var(--glow), 0 14px 40px rgba(0, 0, 0, 0.75);
}

.hotel-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 25%, rgba(255, 75, 147, 0.25), transparent 75%);
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 0;
}

.hotel-card:hover::before {
    opacity: 1;
}

.card-media {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
}

.card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}

.hotel-card:hover .card-media img {
    transform: scale(1.1);
}

.card-info {
    padding: 12px;
    position: relative;
    z-index: 1;
}

.hotel-name {
    font-size: 20px;
    font-weight: 900;
    background: linear-gradient(90deg, var(--text), #d1d9e6);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin: 0 0 10px;
}

.info-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(6px);
    border: var(--frame-width) solid transparent;
    border-image-source: url("/images/frame.png");
    border-image-slice: var(--frame-slice) fill;
    border-image-width: var(--frame-width);
    border-image-repeat: stretch;
    border-radius: 10px;
    padding: 10px;
    box-shadow: inset 0 0 10px rgba(255, 75, 147, 0.25);
}

.hotel-place a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 800;
    font-size: 13px;
    transition: color 0.25s, transform 0.25s;
}

.hotel-place a:hover {
    color: var(--pink);
    transform: translateX(4px);
}

.hotel-contact {
    font-size: 13px;
    color: #d1d9e6;
    margin-top: 8px;
}

.hotel-contact a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 800;
    transition: color 0.25s, transform 0.25s;
}

.hotel-contact a:hover {
    color: var(--pink);
    transform: translateX(4px);
}

.sidebar {
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 75, 147, 0.25);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.sidebar::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 15%, rgba(255, 75, 147, 0.2), transparent 80%);
    opacity: 0.6;
}

.sidebar-card h3 {
    font-size: 20px;
    font-weight: 900;
    background: linear-gradient(45deg, var(--pink), var(--text));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin: 0 0 12px;
    text-align: center;
    text-shadow: 0 2px 8px var(--glow);
}

.price-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 12px;
}

.price-table th,
.price-table td {
    padding: 8px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 75, 147, 0.25);
}

.price-table th {
    font-weight: 900;
    background: linear-gradient(90deg, var(--pink), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-size: 13px;
}

.price-table td {
    font-size: 12px;
    color: #d1d9e6;
}

.sidebar-note p {
    font-size: 11px;
    color: #d1d9e6;
    margin: 0;
    line-height: 1.5;
    text-align: left;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

@media (max-width: 1200px) {
    .hotel-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1024px) {
    .container {
        grid-template-columns: 1fr;
    }

    .sidebar {
        margin-top: 20px;
    }
}

@media (max-width: 768px) {
    .wrap {
        padding: 14px;
    }

    .section-header {
        text-align: center;
    }

    .section-header .accent-line {
        margin: 0 auto 12px;
    }

    .section-header h2 {
        font-size: 24px;
    }

    .section-header p {
        font-size: 13px;
    }

    .hotel-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .hotel-card {
        border-radius: 10px;
    }

    .hotel-name {
        font-size: 18px;
    }

    .info-panel {
        padding: 8px;
    }

    :root {
        --frame-width: 10px;
    }

    .sidebar-card h3 {
        font-size: 18px;
    }

    .price-table th,
    .price-table td {
        font-size: 12px;
        padding: 6px;
    }

    .sidebar-note p {
        font-size: 10px;
    }
}

@media (max-width: 540px) {
    .hotel-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .hotel-card {
        border-radius: 8px;
    }

    .section-header h2 {
        font-size: 22px;
    }

    .section-header p {
        font-size: 12px;
    }

    .hotel-name {
        font-size: 16px;
    }

    .hotel-place a,
    .hotel-contact a {
        font-size: 12px;
    }
}