/* Reset & Variables (Stripe / SaaS Cool Dark Theme) */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #3b82f6; /* Sleek Tech Blue */
    --secondary-color: #60a5fa; /* Light Blue */
    --accent-gold: #94a3b8; /* Cool Silver / Slate */
    --bg-dark: #0f172a; /* Deep Space Slate */
    --text-main: #f1f5f9; /* Off-white for readability */
    --text-highlight: #ffffff; /* Pure white for titles */
    --text-light: #cbd5e1; /* Muted slate for descriptions */
    --glass-bg: rgba(30, 41, 59, 0.6); /* Dark Glass */
    --glass-border: rgba(255, 255, 255, 0.15); /* Thin subtle border */
}

body, html {
    font-family: 'Zen Kaku Gothic New', sans-serif;
    color: var(--text-main);
    background-color: var(--bg-dark);
    letter-spacing: 0.05em;
    width: 100%;
    overflow-x: hidden;
    scroll-behavior: smooth;
    line-height: 1.6;
}

h1, h2, h3, .hero-subtitle, .final-message, .premium-border {
    font-family: 'Shippori Mincho', serif;
}

/* Backgrounds */
.fixed-bg {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: url('space_bg.png'); /* キャッシュを完全にリセットするため別名の画像ファイルを指定 */
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.bg-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: transparent; /* 画像の本来の明るさを100%出すために透明化 */
    z-index: 1;
}

/* Base Utilities */
.bold { font-weight: 700; }
.highlight-text { color: var(--primary-color); }
.gold-title { color: var(--accent-gold); }
.text-center { text-align: center; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }

/* Header Navigation */
.glass-header {
    position: fixed;
    top: 0; left: 0; width: 100%;
    height: 75px;
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 5%;
    z-index: 1000;
    box-shadow: 0 4px 30px rgba(0,0,0,0.5);
}

.logo {
    font-family: 'Shippori Mincho', serif;
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-highlight);
    letter-spacing: 0.1em;
}

.desktop-nav a {
    text-decoration: none;
    color: var(--text-light);
    font-size: 0.95rem;
    font-weight: 500;
    margin-left: 2.2rem;
    transition: color 0.3s;
}

.desktop-nav a:hover {
    color: var(--primary-color);
}

/* Main Container */
.page-container {
    padding-top: 90px;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    padding-bottom: 60px; 
    position: relative;
    z-index: 10;
}

/* Sections */
.hero-section, .content-section {
    width: 100%;
    max-width: 850px;
    padding: 25px 20px;
    display: flex;
    justify-content: center;
}

.hero-section {
    min-height: calc(100vh - 90px);
    align-items: center;
}

/* Glass Card */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4), inset 0 1px 1px rgba(255,255,255,0.05);
    padding: 4rem 3rem;
    width: 100%;
    position: relative;
}

/* Hero Content */
.hero-card {
    text-align: center;
    padding: 5rem 3rem !important;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--accent-gold); 
    margin-bottom: 1.5rem;
    font-weight: 600;
    letter-spacing: 0.08em;
}

.hero-title {
    font-size: 3.5rem;
    color: var(--text-highlight); 
    line-height: 1.25;
    margin-bottom: 2rem;
    font-weight: 800;
    text-shadow: 0 2px 15px rgba(59, 130, 246, 0.4); 
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-light);
    font-weight: 400;
    line-height: 1.8;
}

/* Typography Details */
.section-title {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 2.5rem;
    line-height: 1.4;
    color: var(--text-highlight);
    position: relative;
    padding-bottom: 15px;
    letter-spacing: 0.05em;
}
.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
}

/* Company Info Row */
.company-info .info-row {
    display: flex;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    padding: 15px 0;
}
.company-info .info-row:last-child { border-bottom: none; }
.company-info .label {
    min-width: 140px;
    font-weight: 600;
    color: var(--accent-gold);
}
.company-info .value {
    flex: 1;
    color: var(--text-main);
    line-height: 1.7;
}

/* Premium Table for Tokushoho */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    background: rgba(15,23,42,0.8);
    border: 1px solid var(--glass-border);
}

.premium-table {
    width: 100%;
    min-width: 650px;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.premium-table th {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    color: var(--secondary-color);
    font-weight: 700;
    padding: 18px 20px;
    text-align: left;
    border-bottom: 2px solid var(--primary-color);
}

.premium-table td {
    padding: 16px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    vertical-align: middle;
    color: var(--text-light);
}

.premium-table tr:hover td {
    background-color: rgba(59, 130, 246, 0.05);
}

.premium-table td strong {
    color: var(--text-highlight);
    font-size: 1.05rem;
    font-weight: 600;
}

.premium-table .sub-name {
    font-size: 0.8rem;
    color: #64748b;
    display: block;
    margin-top: 4px;
}

.premium-table .price {
    font-weight: 600;
    color: var(--text-main);
    white-space: nowrap;
}
.premium-table .price .num {
    font-size: 1.25rem;
    color: var(--secondary-color);
}
.premium-table .period {
    color: #94a3b8;
    white-space: nowrap;
}

.coming-soon-tag { 
    display: inline-block; 
    background: rgba(59, 130, 246, 0.2); 
    color: #60a5fa; 
    font-size: 0.7rem; 
    padding: 3px 8px; 
    border-radius: 4px; 
    margin-left: 8px; 
    font-weight: 600; 
    border: 1px solid rgba(59, 130, 246, 0.3);
}

/* Buttons */
.cta-container { text-align: center; }

.outline-button {
    display: inline-block;
    border: 1px solid var(--primary-color);
    background: rgba(59, 130, 246, 0.1);
    color: var(--secondary-color);
    text-decoration: none;
    padding: 14px 35px;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s;
    letter-spacing: 0.05em;
}
.outline-button:hover {
    background: var(--primary-color);
    color: #fff;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.4);
}

.line-button {
    display: block;
    width: 100%;
    max-width: 380px;
    margin: 0 auto;
    background: #00B900; /* Sleeker LINE Green */
    color: white;
    text-decoration: none;
    padding: 18px 25px;
    font-size: 1.15rem;
    font-weight: 700;
    text-align: center;
    border-radius: 50px;
    box-shadow: 0 4px 20px rgba(0, 185, 0, 0.3);
    transition: filter 0.2s, transform 0.2s;
    letter-spacing: 0.05em;
}
.line-button:hover { filter: brightness(1.1); transform: translateY(-2px); }

/* Pulse Animation adapted for Dark/Blue */
.pulse { animation: tech-pulse 2.5s infinite; }
@keyframes tech-pulse {
    0% { box-shadow: 0 0 0 0 rgba(0, 185, 0, 0.4); }
    70% { box-shadow: 0 0 0 15px rgba(0, 185, 0, 0); }
    100% { box-shadow: 0 0 0 0 rgba(0, 185, 0, 0); }
}

/* Scroll Animation Down */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--secondary-color);
    font-size: 0.75rem;
    font-weight: 600;
    animation: bounce 2s infinite;
    letter-spacing: 0.15em;
}
.arrow-down {
    width: 12px; height: 12px;
    border-bottom: 2px solid var(--secondary-color);
    border-right: 2px solid var(--secondary-color);
    transform: rotate(45deg);
    margin: 5px auto 0;
}
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0) translateX(-50%); }
    40% { transform: translateY(-10px) translateX(-50%); }
    60% { transform: translateY(-5px) translateX(-50%); }
}

/* Footer */
.glass-footer {
    position: relative;
    z-index: 10;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(15px);
    border-top: 1px solid var(--glass-border);
    text-align: center;
    padding: 30px 20px;
    font-size: 0.85rem;
    color: var(--text-light);
    width: 100%;
}
.footer-link {
    color: var(--accent-gold) !important;
    margin: 0 15px;
    text-decoration: none;
    font-size: 0.85rem;
    transition: color 0.3s;
}
.footer-link:hover { color: var(--primary-color) !important; }

/* Responsive Overrides */
@media screen and (max-width: 768px) {
    .desktop-nav { display: none; }
    .hero-title { font-size: 2.3rem; }
    .hero-subtitle { font-size: 1rem; line-height: 1.5; }
    .hero-description { font-size: 0.95rem; }
    .glass-card { padding: 2.5rem 1.5rem; }
    .company-info .info-row { flex-direction: column; }
    .company-info .label { margin-bottom: 8px; color: var(--secondary-color); }
    .section-title { font-size: 1.6rem; }
    .biz-item { padding: 1.2rem; }
}