:root {
    --bg-color: #121212;
    --surface-color: #1e1e1e;
    --surface-color-hover: #2d2d2d;
    --primary-color: #ff5722;
    /* Deep Orange */
    --secondary-color: #ffc107;
    /* Amber */
    --text-main: #f0f0f0;
    --text-sub: #aaaaaa;
    --glass-bg: rgba(30, 30, 30, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --radius-md: 12px;
    --radius-lg: 20px;
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);

    --font-heading: 'Zen Kaku Gothic New', sans-serif;
    --font-body: 'Noto Sans JP', sans-serif;
}

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

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

/* Background Gradient Overlay */
.background-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 20%, rgba(255, 87, 34, 0.08), transparent 40%),
        radial-gradient(circle at 80% 80%, rgba(255, 193, 7, 0.05), transparent 40%);
    z-index: -1;
    pointer-events: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.site-header {
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    background: rgba(18, 18, 18, 0.8);
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    color: var(--primary-color);
}

.logo i {
    font-size: 1.5rem;
    animation: flicker 3s infinite alternate;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
}

.logo .sub {
    font-size: 0.9rem;
    color: var(--text-sub);
    font-weight: 400;
    margin-left: 5px;
}

/* Buttons */
.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    padding: 8px 16px;
    border-radius: 50px;
    cursor: pointer;
    font-family: var(--font-body);
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-secondary:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-secondary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.icon-btn {
    background: none;
    border: none;
    color: var(--text-sub);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
}

.icon-btn:hover {
    color: var(--text-main);
}

/* Hero Section */
.hero {
    padding: 100px 0 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: -10%;
    left: -10%;
    width: 120%;
    height: 120%;
    background: linear-gradient(rgba(18, 18, 18, 0.5), rgba(18, 18, 18, 0.8)), url('images/hero_bonfire.png');
    background-size: cover;
    background-position: center;
    z-index: 0;
    filter: url(#heat-haze);
    animation: breathe 10s infinite alternate linear;
}

@keyframes breathe {
    0% {
        transform: scale(1);
    }

    100% {
        transform: scale(1.05);
    }
}

.hero h2 {
    font-family: var(--font-heading);
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #fff 0%, #ccc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    color: var(--text-sub);
    font-size: 1.1rem;
}

/* Interactive Map */
.map-filter-container {
    margin-bottom: 20px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.map-wrapper {
    width: 100%;
    max-width: 400px;
    height: auto;
}

#kansai-map {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.3));
}

.map-pref {
    fill: rgba(255, 255, 255, 0.1);
    stroke: var(--glass-border);
    stroke-width: 2;
    transition: var(--transition);
    cursor: pointer;
}

.map-pref:hover {
    fill: rgba(255, 87, 34, 0.4);
    transform: translateY(-2px);
}

.map-pref.active {
    fill: var(--primary-color);
    stroke: #fff;
    filter: drop-shadow(0 0 10px rgba(255, 87, 34, 0.6));
}

.map-label {
    fill: #fff;
    font-size: 14px;
    font-weight: 700;
    pointer-events: none;
    text-anchor: middle;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.8);
}

.map-instruction {
    margin-top: 10px;
    color: var(--text-sub);
    font-size: 0.9rem;
}

/* Filters */
.filters {
    margin-bottom: 40px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.filter-bar {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

@media (min-width: 768px) {
    .filter-bar {
        flex-direction: row;
        align-items: center;
        flex-wrap: wrap;
    }
}

.filter-group {
    flex: 1;
    min-width: 150px;
}

.search-group {
    flex: 2;
    min-width: 250px;
}

.search-box {
    position: relative;
    width: 100%;
}

.search-box i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-sub);
}

.search-box input {
    width: 100%;
    padding: 12px 12px 12px 40px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(0, 0, 0, 0.4);
}

.filter-select {
    width: 100%;
    padding: 12px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 16px;
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-color);
    background-color: rgba(0, 0, 0, 0.4);
}

.filter-tags-bar {
    padding: 15px 20px;
}

.filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.filter-chip {
    cursor: pointer;
    user-select: none;
}

.filter-chip input {
    display: none;
}

.filter-chip span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    font-size: 0.9rem;
    color: var(--text-sub);
    transition: var(--transition);
}

.filter-chip input:checked+span {
    background: rgba(255, 87, 34, 0.2);
    border-color: var(--primary-color);
    color: var(--primary-color);
    box-shadow: 0 0 15px rgba(255, 87, 34, 0.2);
}

/* Spots Grid */
.spots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    padding-bottom: 80px;
}

.spot-card {
    background: var(--surface-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--glass-border);
    transition: var(--transition);
    position: relative;
    display: flex;
    flex-direction: column;
}

.spot-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(255, 255, 255, 0.2);
}

.spot-image {
    height: 200px;
    width: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.spot-card:hover .spot-image {
    transform: scale(1.05);
}

.level-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    padding: 4px 10px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    color: #fff;
    backdrop-filter: blur(4px);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    z-index: 1;
}

.level-beginner {
    background: rgba(76, 175, 80, 0.9);
}

.level-intermediate {
    background: rgba(255, 152, 0, 0.9);
}

.level-expert {
    background: rgba(244, 67, 54, 0.9);
}

.spot-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.spot-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 10px;
}

.spot-area {
    font-size: 0.8rem;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 700;
    margin-bottom: 4px;
    display: block;
}

.spot-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.spot-rating {
    color: var(--secondary-color);
    font-size: 0.9rem;
}

.spot-desc {
    font-size: 0.9rem;
    color: var(--text-sub);
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.spot-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 20px;
}

.tag {
    font-size: 0.75rem;
    padding: 4px 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    color: var(--text-sub);
}

.spot-footer {
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.spot-price {
    font-weight: 700;
    font-size: 1.1rem;
}

.spot-price span {
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--text-sub);
}

.compare-checkbox {
    display: none;
}

.compare-label {
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-sub);
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.compare-label:hover {
    color: var(--text-main);
}

.compare-checkbox:checked+.compare-label {
    color: var(--primary-color);
}

.compare-checkbox:checked+.compare-label i {
    font-weight: 900;
}

/* Detail Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
}

.hero-content {
    position: relative;
    z-index: 2;
}

/* Fire Flicker Effect */
.fire-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at bottom center, rgba(255, 100, 0, 0.2) 0%, transparent 60%);
    mix-blend-mode: screen;
    animation: flicker 4s infinite alternate;
    pointer-events: none;
    z-index: 1;
}

@keyframes flicker {
    0% {
        opacity: 0.5;
        transform: scale(1);
    }

    25% {
        opacity: 0.7;
        transform: scale(1.02);
    }

    50% {
        opacity: 0.5;
        transform: scale(0.98);
    }

    75% {
        opacity: 0.8;
        transform: scale(1.01);
    }

    100% {
        opacity: 0.6;
        transform: scale(1);
    }
}

/* Embers Effect */
.embers-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    overflow: hidden;
}

.ember {
    position: absolute;
    bottom: -10px;
    width: 4px;
    height: 4px;
    background: #ff9800;
    border-radius: 50%;
    box-shadow: 0 0 10px #ff5722;
    animation: rise linear forwards;
    opacity: 0;
}

@keyframes rise {
    0% {
        bottom: -10px;
        opacity: 1;
        transform: translateX(0) scale(1);
    }

    50% {
        opacity: 0.8;
    }

    100% {
        bottom: 100%;
        opacity: 0;
        transform: translateX(var(--drift)) scale(0.5);
    }
}

.modal-content {
    position: relative;
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: translateY(20px);
    transition: transform 0.3s ease;
    z-index: 1001;
}

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

.close-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(0, 0, 0, 0.5);
    border: none;
    color: #fff;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.close-btn:hover {
    background: var(--primary-color);
    transform: rotate(90deg);
}

.modal-body {
    overflow-y: auto;
    max-height: 90vh;
}

.modal-hero {
    height: 300px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.modal-hero-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 30px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
}

.modal-hero h2 {
    font-size: 2rem;
    margin-bottom: 10px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.modal-content-scroll {
    padding: 30px;
}

.modal-section {
    margin-bottom: 30px;
}

.modal-section h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary-color);
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 10px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.info-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 15px;
    border-radius: var(--radius-md);
}

.info-item .label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-sub);
    margin-bottom: 5px;
}

.info-item .value {
    font-size: 1.1rem;
    font-weight: 700;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 10px;
}

.feature-item {
    padding: 10px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-sub);
}

.feature-item.active {
    background: rgba(76, 175, 80, 0.1);
    border: 1px solid rgba(76, 175, 80, 0.3);
    color: #4caf50;
}

.feature-item i {
    margin-right: 5px;
}

.review-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 15px;
    border-radius: var(--radius-md);
    margin-bottom: 15px;
}

.review-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}

.review-user {
    font-weight: 700;
    color: var(--text-main);
}

.review-rating {
    color: var(--secondary-color);
}

.review-text {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-sub);
}

.map-btn {
    display: inline-block;
    width: 100%;
    padding: 12px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-main);
    text-align: center;
    text-decoration: none;
    transition: var(--transition);
    margin-top: 10px;
}

.map-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-color);
}

/* Detail Button in Card */
.detail-btn {
    background: transparent;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 5px;
    transition: var(--transition);
}

.detail-btn:hover {
    gap: 10px;
    text-shadow: 0 0 10px rgba(255, 87, 34, 0.5);
}

/* Sort Select */
.sort-select {
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
    background: var(--surface-color);
    color: var(--text-main);
    font-size: 0.9rem;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 16px;
    transition: var(--transition);
}

.sort-select:hover {
    border-color: var(--primary-color);
}

.sort-select option {
    background: var(--surface-color);
    color: var(--text-main);
}

/* Compare Modal */
.compare-grid {
    display: grid;
    grid-template-columns: auto repeat(3, 1fr);
    /* Label col + up to 3 items */
    gap: 0;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.compare-cell {
    padding: 15px;
    border-bottom: 1px solid var(--glass-border);
    border-right: 1px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.02);
    display: flex;
    align-items: center;
}

.compare-cell.header {
    font-weight: 700;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-sub);
}

.compare-cell img {
    width: 100%;
    height: 120px;
    object-fit: cover;
    border-radius: 8px;
}

/* Utilities */
.hidden {
    display: none !important;
}

.no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 0;
    color: var(--text-sub);
}

.no-results i {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

/* Footer */
.site-footer {
    border-top: 1px solid var(--glass-border);
    padding: 40px 0;
    text-align: center;
    color: var(--text-sub);
    font-size: 0.9rem;
}

/* Animations */
@keyframes flicker {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.8;
        transform: scale(0.95);
    }
}

@media (max-width: 768px) {
    .hero h2 {
        font-size: 2rem;
    }

    .modal-hero {
        height: 200px;
    }

    .modal-hero h2 {
        font-size: 1.5rem;
    }

    .modal-content-scroll {
        padding: 20px;
    }

    .compare-grid {
        display: flex;
        flex-direction: column;
        gap: 20px;
        border: none;
    }

    .compare-item-mobile {
        border: 1px solid var(--glass-border);
        border-radius: var(--radius-md);
        padding: 15px;
        background: var(--surface-color);
    }
}