:root{--primary-color:#c7442e;--secondary-color:#111;--accent-color:#c9a84c;--bg-color:#f7f3ea;--text-color:#111;--card-bg:#ffffffd9;--border-radius:24px;--shadow:0 10px 30px #00000014;--font-family:"Avenir Next", "Söhne", "Noto Sans JP", "Yu Gothic", sans-serif;--font-size-h1:clamp(28px, 4vw, 32px);--font-size-h2:clamp(20px, 3vw, 24px);--font-size-body:15px;--font-size-small:12px}*{box-sizing:border-box;margin:0;padding:0}html,body{max-width:100%;overflow-x:hidden}body{background-color:var(--bg-color);color:var(--text-color);font-family:var(--font-family);-webkit-font-smoothing:antialiased;background-image:url(/background.png);background-position:50%;background-repeat:no-repeat;background-size:cover;background-attachment:fixed;flex-direction:column;min-height:100vh;line-height:1.6;display:flex}a{color:inherit;text-decoration:none}.glass-card{background:var(--card-bg);-webkit-backdrop-filter:blur(16px);border-radius:var(--border-radius);box-shadow:var(--shadow);border:1px solid #fff9;padding:24px;position:relative;overflow:hidden}.btn-primary{background:var(--primary-color);color:#fff;cursor:pointer;text-align:center;border:none;border-radius:30px;padding:14px 28px;font-weight:700;transition:all .3s;display:inline-block;box-shadow:0 6px 15px #c7442e4d}.btn-primary:hover{transform:translateY(-3px);box-shadow:0 8px 20px #c7442e66}.btn-secondary{color:var(--text-color);border:1.5px solid var(--text-color);cursor:pointer;text-align:center;background:0 0;border-radius:30px;padding:14px 28px;font-weight:700;transition:all .3s;display:inline-block}.btn-secondary:hover{background:#1111110d;transform:translateY(-3px);box-shadow:0 6px 15px #0000001a}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}header{justify-content:space-between;align-items:center;padding:20px 0;display:flex}.nav-logo{justify-content:center;align-items:center;display:inline-flex}