@charset "UTF-8";

/* =========================================
   VOLTARE GLOBAL THEME
   ========================================= */
:root {
    --bg-color: #0a0a0a;       /* 漆黒 */
    --card-bg: #161616;        /* ダークグレー */
    --text-main: #f0f0f0;      /* オフホワイト */
    --text-muted: #a0a0a0;     /* グレー */
    --accent-fire: #ff2a00;    /* 燃えるような赤 */
    --accent-volt: #ff9900;    /* 電撃のオレンジ */
    --gradient-main: linear-gradient(135deg, var(--accent-fire), var(--accent-volt));
    --font-main: 'Helvetica Neue', Arial, 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
}

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* =========================================
   HEADER & NAVIGATION
   ========================================= */
header {
    background-color: rgba(10, 10, 10, 0.95);
    border-bottom: 2px solid var(--accent-fire);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(5px);
}

.logo {
    font-size: 2rem;
    font-weight: 900;
    font-style: italic;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 20px;
}

nav a {
    font-weight: bold;
    font-size: 1rem;
    padding: 0.5rem 1rem;
    border: 1px solid transparent;
    border-radius: 4px;
}

nav a:hover {
    color: var(--accent-volt);
    border: 1px solid var(--accent-volt);
    box-shadow: 0 0 10px rgba(255, 153, 0, 0.5);
}

/* =========================================
   HERO SECTION
   ========================================= */
.hero {
    height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: radial-gradient(circle at center, rgba(255, 42, 0, 0.1) 0%, rgba(10, 10, 10, 1) 70%), url('hero-bg.jpg'); /* 背景画像は適宜設定 */
    background-size: cover;
    background-position: center;
    padding: 2rem;
}

.hero h1 {
    font-size: 5rem;
    text-transform: uppercase;
    line-height: 1.1;
    margin-bottom: 1rem;
    text-shadow: 0 0 20px rgba(255, 42, 0, 0.6);
}

.hero p {
    font-size: 1.5rem;
    color: var(--text-muted);
    max-width: 600px;
    margin-bottom: 2rem;
}

.cta-button {
    background: var(--gradient-main);
    color: white;
    padding: 1rem 3rem;
    font-size: 1.2rem;
    font-weight: bold;
    border-radius: 50px;
    box-shadow: 0 0 20px rgba(255, 42, 0, 0.4);
    transition: transform 0.2s;
}

.cta-button:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(255, 153, 0, 0.6);
}

/* =========================================
   NEWS SECTION (GRID)
   ========================================= */
.container {
    max-width: 1200px;
    margin: 4rem auto;
    padding: 0 2rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    border-left: 5px solid var(--accent-volt);
    padding-left: 1rem;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.news-card {
    background-color: var(--card-bg);
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid #333;
}

.news-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-fire);
    box-shadow: 0 5px 15px rgba(255, 42, 0, 0.2);
}

.news-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background-color: #333;
}

.news-content {
    padding: 1.5rem;
}

.news-title {
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.news-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.read-more {
    color: var(--accent-volt);
    font-weight: bold;
    font-size: 0.9rem;
}

/* =========================================
   FOOTER
   ========================================= */
footer {
    text-align: center;
    padding: 3rem;
    background-color: #000;
    color: var(--text-muted);
    border-top: 1px solid #333;
    margin-top: 4rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 3rem; }
    header { flex-direction: column; gap: 1rem; }
    nav ul { gap: 10px; flex-wrap: wrap; justify-content: center; }
}