:root {
    --primary-color: #6366f1;
    --secondary-color: #a855f7;
    --text-dark: #1f2937;
    --text-light: #f9fafb;
    --bg-white: #ffffff;
    --bg-gray: #f3f4f6;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.3);
}

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

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

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
}

.logo img {
    height: 50px;
    width: auto;
    display: block;
}

nav a {
    text-decoration: none;
    color: var(--text-dark);
    margin-left: 2rem;
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: url('assets/aya_prism_hero_bg.png') no-repeat center center/cover;
    color: var(--text-light);
    padding: 0 5%;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    text-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.25rem;
    max-width: 600px;
    margin-bottom: 2rem;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(99, 102, 241, 0.4);
}

/* Sections */
section {
    padding: 100px 10%;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 50px;
    height: 4px;
    background: var(--primary-color);
    margin: 10px auto;
}

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

.service-card:hover {
    transform: translateY(-10px);
}

.service-card h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.service-card h4 {
    margin-bottom: 0.5rem;
    font-size: 1rem;
    color: var(--primary-color);
}

.card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s;
}

.service-card:hover .card-icon {
    transform: scale(1.1);
}

/* Company Table */
.company-info-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 2rem;
}

.company-info-table th,
.company-info-table td {
    padding: 1rem;
    border-bottom: 1px solid #e5e7eb;
    text-align: left;
}

.company-info-table th {
    width: 30%;
    color: #6b7280;
    font-weight: 500;
}

/* Footer */
footer {
    background: #111827;
    color: white;
    padding: 3rem 10%;
    text-align: center;
}

.footer-logo {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.copyright {
    font-size: 0.875rem;
    color: #9ca3af;
}

/* Responsive Utility Classes */
.br-pc {
    display: inline;
}

.br-sp {
    display: none;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    nav {
        display: none;
    }

    .br-pc {
        display: none;
    }

    .br-sp {
        display: inline;
    }
}