/* style.css（基本スタイル）- テーマ変数対応版 */

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

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
    color: var(--text-primary);
    overflow: hidden;
    height: 100vh;
    transition: background 0.5s ease, color 0.3s ease;
}

#game-container {
    width: 100%;
    height: 100vh;
    position: relative;
    background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
    transition: background 0.5s ease;
}

/* ボタンの基本スタイル */
.btn-primary, .btn-secondary, .btn-small {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    margin: 8px;
    color: var(--text-primary);
}

.btn-primary {
    background: linear-gradient(45deg, var(--accent-secondary), var(--accent-primary));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 107, 107, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 2px solid var(--ui-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--accent-secondary);
}

.btn-small {
    padding: 8px 16px;
    font-size: 14px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid var(--ui-border);
}

.btn-small:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--accent-secondary);
}