/* Variables & Reset */
:root {
    --primary-yellow: #fde400;
    --accent-orange: #ff9800;
    --text-dark: #333;
    --bg-light: #fdfdfd;
    --section-padding: 60px 20px;
}

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

body {
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
    overflow-x: hidden;
}

/* Typography */
.handwritten {
    font-family: 'Zen Kurenaido', 'Yuji Syuku', cursive;
}

h1, h2, h3 {
    line-height: 1.2;
}

.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;
}

/* Layout */
.container {
    max-width: 800px;
    margin: 0 auto;
    background: #fff;
    box-shadow: 0 0 50px rgba(0,0,0,0.1);
}

/* Hero Section */
.hero {
    position: relative;
    padding: 40px 20px;
    text-align: center;
    background-color: #fff;
}

/* Infrastructure - Using the original big image as background for specific graphical sections if needed */
/* But since we want to be "better", we'll use sections */

.visual-section {
    position: relative;
    width: 100%;
}

.visual-section img {
    width: 100%;
    display: block;
}

/* Overlay Elements */
.hotspot {
    position: absolute;
    display: block;
    z-index: 100;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background-color: rgba(255, 255, 255, 0);
    border-radius: 8px;
}

.hotspot:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: scale(1.02);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.hotspot img {
    width: 100%;
    height: auto;
    display: block;
    opacity: 0.95;
    transition: opacity 0.3s ease;
}

.hotspot:hover img {
    opacity: 1;
}

/* Premium Buttons */
.btn-cta {
    display: inline-block;
    background: linear-gradient(135deg, #ff9800, #f57c00);
    color: white;
    padding: 15px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    box-shadow: 0 4px 15px rgba(255, 152, 0, 0.3);
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 152, 0, 0.4);
}

/* Timeline/Infographic Styles */
.timeline-item {
    padding: 40px;
    border-bottom: 2px dashed #eee;
}

/* Map Style */
.map-container {
    padding: 20px;
    background: #fdf6e3;
    border-radius: 15px;
    margin: 20px;
}

/* Animations (assuming AOS is loaded) */
[data-aos] {
    transition-duration: 800ms !important;
}